System One

Design and deploy secure hybrid AWS GovCloud architectures, integrating systems and supporting verification, production releases, and federal security documentation. | Requires senior AWS cloud architecture and migration experience, container platforms, AWS networking, systems integration, secure network design, and FISMA High/ATO knowledge. | Senior / Lead Systems Engineer (AWS Cloud Architecture) Employment Type: Contract Location: Mostly Remote Candidates must be local to the DC/MD/VA or Eagan, MN area US Citizenship required per government contract Clearance: Must be able to obtain a Public Trust clearance We are seeking experienced Senior and Lead Systems Engineers to support FAA cloud modernization initiatives. Qualified candidates will have strong experience in AWS cloud architecture, hybrid infrastructure design, systems integration, secure networking, and federal security requirements. Key Responsibilities: • Design and implement hybrid cloud architectures supporting migration from on-premises environments to AWS GovCloud. • Develop hardware, software, and network architectures across AWS VPCs, GovCloud, and multi-cluster environments. • Evaluate container platforms, including AWS ECS, EKS, and OpenShift, and perform cost analysis and infrastructure sizing. • Lead systems integration, verification and validation (V&V), and production deployments. • Design secure network architectures, including trust boundaries, segmentation, and access controls. • Support FISMA High security requirements, SSP documentation, and ATO processes. • Collaborate with DevSecOps, software development, and testing teams. Required Qualifications: • Strong systems engineering and AWS cloud architecture experience. • Experience designing hybrid cloud environments and supporting cloud migrations. • Experience with AWS ECS, EKS, OpenShift, or similar container platforms. • Knowledge of AWS networking, including VPCs, ALB, WAF, PrivateLink, and ingress routing. • Experience with systems integration, V&V, infrastructure sizing, and deployment. • Understanding of FISMA High security requirements, SSPs, and ATO processes. • Experience with secure network design and segmentation. • Strong troubleshooting, technical documentation, and communication skills. Preferred Qualifications: • Previous experience supporting FAA, DOT, or other federal programs. • AWS GovCloud migration experience. • Familiarity with Zscaler, PIV authentication, and FAA/NTC environments. • Experience with DevSecOps and AI-driven test automation. #M1 #LI-VH1 Ref: #851-Rockville-S1 Remote Skills: Access Control, Amazon Web Services (AWS), Artificial Intelligence (AI), Authentication, Cloud Architecture, Cloud Computing, Communication Skills, Cost Analysis, Documentation, FISMA - Federal Information Security Management Act, Federal Aviation Administration (FAA), Government Contracts, Hardware Development, Hybrid Cloud, Identify Issues, Network Architecture/Engineering, Network Design, Network Security, Software Architecture, Software Development, Software Testing, System Integration (SI), Systems Engineering, Technical Writing, Test Automation, United States Citizen, Validation Testing System One Every day, System One focuses on services and solutions that require a high degree of specialization, in-demand technical skills, and large-scale operational expertise. We are essential partners to those on the front lines of our nation’s most critical infrastructure, technology, and life sciences initiatives. Founded more than 40 years ago as a staffing partner to the engineering industry, today System One is a diversified organization operating in over 50 locations and putting more than 9,000 people to work in the United States, Canada, and the United Kingdom. Company Size: 2,500 to 4,999 employees Industry: Staffing/Employment Agencies 0 Website: https://systemone.com

Lead a law firm website redesign, develop conditional client intake and lead-routing workflows, administer HubSpot integrations and automations, and use AI tools to improve development and internal processes. | Requires 3+ years of web development, hands-on HubSpot CRM/forms/workflows, complex conditional forms, website redesign experience, Claude-assisted development, and strong front-end and stakeholder skills. | Web Developer / AI Automation Developer Location: Remote, must work East Coast Hours (Based out of Maryland) Contract to Hire Pay: $75/hr. range W2. Benefits available Conversion Salary: $140,000 to $145,000 range annually, plus benefits About the Opportunity System One IT is staffing a 6-month contract-to-hire opening for a hands-on Web Developer / AI Automation Developer to modernize our digital presence and create a smarter lead intake experience for prospective clients at a growing Maryland law firm. This role is ideal for someone who enjoys wearing multiple hats: web development, user experience, marketing technology, and AI-assisted software development. You'll lead the redesign of our public-facing website, build advanced intake forms with conditional logic, and leverage AI-powered development tools, including Claude, to accelerate development and automation initiatives. • If you're excited about using emerging AI tools to build practical business solutions and want to have a direct impact on a firm's growth strategy, we'd like to talk with you. What You'll Be Doing Website Redesign & Development • Lead the redesign and modernization of the firm's website • Improve user experience, navigation, accessibility, and mobile responsiveness • Collaborate with firm leadership on branding, messaging, and conversion optimization • Optimize website performance, SEO, and page speed • Client Intake & Lead Funnel Development • Design and implement sophisticated intake forms with multi-step workflows • Build conditional logic that dynamically routes prospects based on case type, geography, urgency, and qualification criteria • Create automated lead routing and notification workflows • Improve conversion rates through efficient user journeys • HubSpot Administration & Integration • Configure and optimize HubSpot forms, workflows, pipelines, and automations • Integrate website forms directly into HubSpot CRM • Build lead-scoring models and automated nurturing workflows • Develop reporting dashboards to track marketing and intake performance • AI-Assisted Development & Automation • Utilize Claude and other AI development tools to accelerate software delivery • Explore opportunities to automate internal workflows and business processes • Assist in developing AI-enhanced client intake and knowledge management solutions • Recommend emerging technologies and best practices Technical Ownership • Maintain website security and ongoing enhancements • Troubleshoot issues and implement improvements • Manage integrations between marketing, CRM, and intake systems • Document solutions and processes Required Qualifications • 3+ years of professional web development experience • Hands-on experience with HubSpot CRM, Forms, and Workflows • Experience building complex forms utilizing conditional logic • Strong front-end development skills using: • HTML5 • CSS3 • JavaScript • Responsive Web Design • Experience redesigning and launching business websites • Experience working with AI-assisted development tools, specifically Claude • Understanding of lead generation and conversion optimization practices • Experience integrating websites with CRM platforms • Strong communication and stakeholder management skills Preferred Qualifications • Experience supporting law firms, professional services, or consultative sales organizations • Experience with HubSpot CMS • React, Next.js, or modern JavaScript framework experience • API integration experience • SEO and website analytics knowledge • Google Analytics experience • Marketing automation experience • Familiarity with legal client intake workflows Ideal Candidate: The ideal candidate is someone who: • Enjoys building things from scratch • Has experience redesigning websites that generate leads • Understands customer acquisition funnels • Is excited to leverage AI tools like Claude as part of their daily workflow • Can independently own projects while partnering closely with business stakeholders • Wants the opportunity to convert into a long-term employee Key Technologies Required • HubSpot • Claude • HTML/CSS/JavaScript • Website CMS Platforms • CRM Integrations Nice to Have • React • Next.js • Node.js • Google Analytics • SEO Tools • Zapier • HubSpot CMS System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan. System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law. Ref: #851-Rockville-S1 Remote Skills: Application Programming Interface (API), Artificial Intelligence (AI), Automation, Best Practices, Brand Marketing (Branding), Business Portal, Business Processes, Business Solutions, CRM Integration, CSS (Cascading Style Sheet), Communication Skills, Consultative Sales, Consulting, Content Management Systems (CMS), Cross-Functional, Customer Acquisition, Customer Experience, Customer Relationship Management (CRM), Customer Relationship Management (CRM) Systems, Emerging Technology, Geography, Google Analytics, HTML (HyperText Markup Language), HTML5, Identify Issues, Information Technology & Information Systems, Internet Security, JavaScript, JavaScript Frameworks, Knowledge Management, Lead Generation, Leadership, Legal, Marketing, Marketing Automation Software, Node.js, Outsourcing, Performance Tuning/Optimization, Professional Services, Programming Tools, React.js, Reporting Dashboards, Reporting Skills, Sales Prospecting, Search Engine Optimization (SEO), Service Delivery, Software Development, User Interface/Experience (UI/UX), Web Analytics, Web Design, Web Programming, Website Conversion System One Every day, System One focuses on services and solutions that require a high degree of specialization, in-demand technical skills, and large-scale operational expertise. We are essential partners to those on the front lines of our nation’s most critical infrastructure, technology, and life sciences initiatives. Founded more than 40 years ago as a staffing partner to the engineering industry, today System One is a diversified organization operating in over 50 locations and putting more than 9,000 people to work in the United States, Canada, and the United Kingdom. Company Size: 2,500 to 4,999 employees Industry: Staffing/Employment Agencies 0 Website: https://systemone.com

Lead network projects and security improvements, maintain LAN/WAN and wireless infrastructure, troubleshoot systems, and coordinate with vendors. | Requires 7+ years in network administration, cybersecurity product support, LAN design, Cisco routers and switches, network monitoring, and familiarity with Windows, Linux, and VMware. | Job Title: Network Administrator III Location: Winter Park, FL Type: Direct Hire Job Summary: System One is seeking a Network Administrator III for a full-time, permanent onsite position in Winter Park, FL. The Network Administrator III is responsible for leading and managing network projects by recommending solutions to network strategy and security issues, as well as providing network-engineering solutions/options for the organizatio Responsibilities • Lead and manage network projects, recommending solutions for network strategy and security issues • Develop detailed network specifications and support new project scope work • Maximize network equipment functionality including routers, switches, load balancers, and firewalls • Perform risk assessments on existing or new systems and recommend security improvements • Interact with vendors, outsourcers, and contractors to secure network products and services • Conduct network analysis, capacity planning, and testing for LAN/WAN environments • Stay current on security threats, standards, and products; create and update cybersecurity procedures and documentation • Assist with design, installation, and testing of network topologies for Internet and data transport channels • Support installation and maintenance of PC/Server hardware and software • Design and manage wireless networking solutions, monitor network health and security infrastructure • Troubleshoot Windows and Linux IP-based LANs/WANs and IP routing/bridging solutions • Understand multi-ISP/WAN load-balancing, including SD-WAN technologies • Perform routine/emergency maintenance of data center equipment • Monitor network security to detect and prevent intrusions, work with vendors to investigate breaches • Analyze LAN/WAN changes, reconfigurations, and perform penetration testing/security audits • Maintain network performance monitoring and security log analysis • Support remote access technologies such as VPN, ZeroTrust, and cloud-based solutions • Conduct response drills and improve incident response processes • Troubleshoot VoIP issues including latency and jitter • Respond to security system and physical security emergencies, including after-hours support • Continually research emerging security threats and technologies Requirements • Undergraduate degree in a related field or 7+ years of experience/training in network administration • Proven experience in cybersecurity product support, network performance tuning, LAN design, and Cisco routers and switches • Familiarity with network monitoring tools such as Solarwinds, Manage Engine, Zabbix, etc. • Experience with Meraki and Sophos Cloud Management is a plus • In-depth knowledge of computer hardware and software • Strong attention to detail, communication skills, proficiency in Excel and Word • Organizational skills; occasional travel required • Windows and Linux knowledge helpful, with experience in VMWare ESXi Hypervisor System One, and its subsidiaries including Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan. System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law. #LI-SG2 #M-1 Ref: #690-Tech Tampa IT

Develop and productionize machine learning, generative AI, search, and anomaly or fraud detection capabilities for investigative workflows using AWS data platforms. | Requires a relevant degree, at least four years in AI or data science, Python and AWS expertise, and experience with machine learning, data pipelines, and model evaluation. | Job Title: AI/ML Data Scientist Location: 100% REMOTE Clearance: Ability to obtain and maintain a Public Trust clearance. Type: Contract-to-hire WHAT YOU WILL DO: · Partner with stakeholders to define and deliver AI, machine learning, and advanced analytics use cases, translating business needs into scalable data science solutions. · Design and develop machine learning models and analytical approaches to support search, discovery, anomaly detection, fraud detection, and insight generation across structured and unstructured data. · Develop anomaly and fraud detection analyses using supervised, unsupervised, semi-supervised, statistical, and graph-based techniques, including outlier detection, behavioral profiling, risk scoring, pattern detection, and relationship analysis. · Use Generative AI and foundation models to enhance anomaly and fraud detection workflows through alert enrichment, case summarization, contextual analysis, evidence synthesis, pattern explanation, investigative hypothesis generation, and analyst decision support. · Build and implement natural language processing, semantic search, entity resolution, and relationship analytics capabilities to enable advanced information retrieval and identification of suspicious patterns and connections. · Leverage document-based data, including OCR/ICR outputs, metadata, images, extracted fields, and free text, to support downstream analytics, search, anomaly detection, and fraud analysis. · Collaborate with data engineers, cloud engineers, investigators, and business stakeholders to integrate models and analytical capabilities into production environments using AWS-native services. · Develop and operationalize data science solutions within an AWS data lakehouse, including scalable data preparation, feature engineering, model training, inference, monitoring, and analytics. · Develop model evaluation frameworks, confidence and risk scoring, explainability, traceability, and human-in-the-loop review approaches to ensure AI outputs are transparent, actionable, and suitable for investigative and operational use. · Evaluate anomaly and fraud detection models using appropriate measures, including precision, recall, F1 score, false-positive rate, detection rate, ranking quality, and business impact. · Support the development of dashboards, reporting, alerting, and investigative workflows that drive operational insights and informed decision-making. · Operate within an Agile delivery model, contributing to sprint planning, experimentation, model iteration, and incremental solution delivery. · Communicate findings, risk indicators, model limitations, and recommendations clearly to technical and non-technical audiences, including client stakeholders. · Contribute to solution design, proposal support, technical documentation, and thought leadership in AI, analytics, anomaly detection, and fraud detection. WHAT YOU WILL NEED: · Bachelor’s or Master’s degree in Data Science, Computer Science, Statistics, Mathematics, Engineering, or a related field. · A minimum of 4 years of experience in data science, machine learning, artificial intelligence, or applied analytics roles. · Ability to obtain and maintain a Public Trust clearance. U.S. Citizenship preferred. · Experience developing and applying machine learning models in one or more of the following areas: · Natural Language Processing (NLP) · Semantic search or information retrieval · Entity resolution or relationship modeling · Anomaly or outlier detection · Fraud, risk, waste, abuse, or suspicious-pattern detection · Graph analytics or network analysis · Skills and experience designing or implementing anomaly and fraud detection analyses using methods such as classification, clustering, isolation-based techniques, autoencoders, time-series analysis, behavioral analytics, link analysis, rules-based detection, or ensemble modeling. · Demonstrated competency working with AWS-native data, analytics, AI, and machine learning services, such as Amazon S3, AWS Glue, AWS Lake Formation, Amazon Athena, Amazon EMR, Amazon Redshift, Amazon SageMaker, Amazon Bedrock, AWS Lambda, AWS Step Functions, Amazon OpenSearch Service, Amazon ECS or Amazon EKS, and Amazon CloudWatch. · Demonstrated competency working with AWS data lakehouse architectures, including Amazon S3-based data lakes, Apache Iceberg or similar open table formats, centralized metadata catalogs, governed data access, schema evolution, partitioning, data quality, and scalable query and transformation patterns. · Demonstrated competency using Generative AI, large language models, or foundation models for anomaly and fraud detection analysis, including alert enrichment, investigative summarization, contextual reasoning, evidence synthesis, pattern explanation, and analyst assistance. · Experience working with large-scale structured and unstructured data, particularly document-based datasets such as text, PDFs, images, extracted fields, and metadata. · Experience using metadata, engineered features, embeddings, event or transaction histories, and relationship data to support analytics and modeling. · Strong proficiency in Python for data science and machine learning, including libraries such as Pandas, NumPy, Scikit-learn, PyTorch, or TensorFlow, along with strong SQL skills. · Experience building scalable data processing and machine learning pipelines using AWS-native services and open-source frameworks such as Apache Spark. · Experience integrating models into production environments through APIs, batch pipelines, event-driven workflows, streaming pipelines, or embedded analytics applications. · Understanding of model evaluation, validation, monitoring, drift detection, bias assessment, explainability, and performance measurement. · Understanding of operational challenges in anomaly and fraud detection, including class imbalance, changing patterns, false positives, data leakage, concept drift, and feedback-loop design. · Ability to apply responsible AI, privacy, security, and governance practices when using Generative AI with sensitive or regulated data. · Strong communication skills and the ability to translate analytical outputs, detected risks, and model results into actionable insights. · Experience working in cross-functional, matrixed teams in an Agile environment. What Would Be Nice To Have: · Experience developing production-grade anomaly detection, fraud detection, waste and abuse analytics, risk-scoring, or investigative decision-support solutions. · Experience using Amazon Bedrock foundation models or comparable enterprise Generative AI capabilities for analytics, anomaly detection, fraud investigation, or case-management workflows. · Experience implementing Retrieval-Augmented Generation (RAG), prompt engineering, agentic workflows, guardrails, foundation-model evaluation, and responsible AI controls for enterprise use cases. · Experience building AI-enabled search solutions, including semantic search, hybrid search, document retrieval, embeddings, and ranking models using AWS-native services. · Experience with multimodal data processing involving text, images, documents, metadata, and other data types. · Familiarity with OCR/ICR and document intelligence pipelines using services such as Amazon Textract and Amazon Bedrock. · Experience using Amazon SageMaker for feature engineering, model development, training, deployment, monitoring, and machine learning lifecycle management. · Experience using Amazon OpenSearch Service, graph databases, or graph-processing frameworks for relationship mapping, link analysis, and suspicious-network detection. · Experience developing explainable AI solutions, including confidence scoring, reason codes, feature attribution, evidence traceability, and analyst-friendly explanations. · Experience designing analytics dashboards, alert-management interfaces, investigative reporting, or case-triage solutions for end users. · Knowledge of AWS security and governance practices, including IAM, encryption, logging, data classification, least-privilege access, and handling sensitive or regulated information. · Previous experience supporting federal clients or working in regulated environments. · Consulting experience or experience in a client-facing delivery role strongly preferred. · Experience supporting training, user enablement, or adoption of analytics capabilities across teams. · Familiarity with graph-based analytics, ontology-driven models, knowledge graphs, or relationship mapping. System One is a leading provider of specialized, highly technical services and solutions to critical infrastructure, technology, life sciences, and government sectors. We partner with large private and public organizations who trust us to execute their complex, mission-critical initiatives through our outsourced services and workforce solutions.

Manage and support Windows Server infrastructure, Active Directory, certificate authorities, and related security and patching operations. | 8+ years systems engineering with strong Active Directory, scripting, certificate management, and Windows OS support experience. | Job Title: Senior Windows Server Systems Administrator Location: Washington, DC Type: Contract Compensation: $40 - $65 per hour Work Model: Remote – offsite Hours: 40.0 hours per week Security Clearance: U.S. Citizenship required and current - ATF (Bureau of Alcohol, Tobacco, Firearms and Explosives) Public Trust preferred Overview This Senior Windows Server Systems Administrator can work fully remote but must be in the DC Metro area in case the team needs to meet in person. This is likely to be a contract-to-hire, and the conversion salary is 140K max. Responsibilities • Support and manage Windows enterprise management technologies, including Active Directory, DNS, and Certificate Authorities. • Configure, troubleshoot, and maintain Windows Server operating systems in support of Active Directory, DNS, and Certificate Authorities. • Manage and maintain Active Directory systems and support Active Directory health checks with scripts. • Maintain the certificate environment, including issuing and installing certificates without outages. • Develop scripts to monitor system health for Active Directory, DNS, and Certificate Authorities. • Design, develop, and support scalable, redundant infrastructure across physical, virtualized, and cloud environments. • Install, configure, and manage Windows-based certificate authority servers. • Configure group management policies, including role-based access control. • Set up and maintain administrator and service accounts, document systems, tune performance, and install system-wide software. • Apply NIST, DISA security controls, and security hardening best practices. • Implement critical system patches and manage storage space efficiently. • Collaborate daily with engineering teams and system owners to influence design and architect solutions. • Manage project priorities, deliverables, and deadlines effectively. • Produce clear documentation for solutions provided. Requirements • BS in Computer Science, Systems Engineering, or related discipline. • 8+ years of systems engineering or administration experience (6+ years with a MS/MIS Degree). • Experience orchestrating workflows with data dependencies. • Proficiency with DevOps tools and scripting languages including PowerShell. • 5+ years of experience with Directory services (Microsoft Active Directory, Entra ID/Azure AD), Certificate Administration, and DNS. • 4+ years supporting Tier II & Tier III Windows OS support. • 3+ years of experience with ADFS, OKTA, or similar authentication services. • Experience managing certificates and certificate authorities like Microsoft, Digicert, Entrust/Sectigo, SSL.com. • Excellent communication skills, both verbal and written. • Ability to work independently and with cross-disciplinary teams. System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan. System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law. #M-2 #LI-CK1 Ref: #851-Rockville-S1

Manage and support Windows Server infrastructure including Active Directory, DNS, certificate authorities, and scripting for system health monitoring. | Requires 8+ years systems engineering experience with strong Windows Server, Active Directory, certificate management, and scripting skills. | Job Title: Senior Windows Server Systems Administrator Location: Washington, DC Type: Contract Compensation: $40 - $65 per hour Work Model: Remote – offsite Hours: 40.0 hours per week Security Clearance: U.S. Citizenship required and current - ATF (Bureau of Alcohol, Tobacco, Firearms and Explosives) Public Trust preferred Overview This Senior Windows Server Systems Administrator can work fully remote but must be in the DC Metro area in case the team needs to meet in person. This is likely to be a contract-to-hire, and the conversion salary is 140K max. Responsibilities • Support and manage Windows enterprise management technologies, including Active Directory, DNS, and Certificate Authorities. • Configure, troubleshoot, and maintain Windows Server operating systems in support of Active Directory, DNS, and Certificate Authorities. • Manage and maintain Active Directory systems and support Active Directory health checks with scripts. • Maintain the certificate environment, including issuing and installing certificates without outages. • Develop scripts to monitor system health for Active Directory, DNS, and Certificate Authorities. • Design, develop, and support scalable, redundant infrastructure across physical, virtualized, and cloud environments. • Install, configure, and manage Windows-based certificate authority servers. • Configure group management policies, including role-based access control. • Set up and maintain administrator and service accounts, document systems, tune performance, and install system-wide software. • Apply NIST, DISA security controls, and security hardening best practices. • Implement critical system patches and manage storage space efficiently. • Collaborate daily with engineering teams and system owners to influence design and architect solutions. • Manage project priorities, deliverables, and deadlines effectively. • Produce clear documentation for solutions provided. Requirements • BS in Computer Science, Systems Engineering, or related discipline. • 8+ years of systems engineering or administration experience (6+ years with a MS/MIS Degree). • Experience orchestrating workflows with data dependencies. • Proficiency with DevOps tools and scripting languages including PowerShell. • 5+ years of experience with Directory services (Microsoft Active Directory, Entra ID/Azure AD), Certificate Administration, and DNS. • 4+ years supporting Tier II & Tier III Windows OS support. • 3+ years of experience with ADFS, OKTA, or similar authentication services. • Experience managing certificates and certificate authorities like Microsoft, Digicert, Entrust/Sectigo, SSL.com. • Excellent communication skills, both verbal and written. • Ability to work independently and with cross-disciplinary teams. System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan. System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law. #M-2 #LI-CK1 Ref: #851-Rockville-S1

Manage and support Windows Server environments including Active Directory, DNS, certificate authorities, scripting, and security hardening. | 8+ years systems engineering with expertise in Active Directory, Windows OS support, certificate management, and scripting. | Job Title: Senior Windows Server Systems Administrator Location: Washington, DC Type: Contract Compensation: $40 - $65 per hour Work Model: Remote – offsite Hours: 40.0 hours per week Security Clearance: U.S. Citizenship required and current - ATF (Bureau of Alcohol, Tobacco, Firearms and Explosives) Public Trust preferred Overview • *This Senior Windows Server Systems Administrator can work fully remote but must be in the DC Metro area in case the team needs to meet in person. This is likely to be a contract-to-hire, and the conversion salary is 140K max.** Responsibilities - Support and manage Windows enterprise management technologies, including Active Directory, DNS, and Certificate Authorities. - - Configure, troubleshoot, and maintain Windows Server operating systems in support of Active Directory, DNS, and Certificate Authorities. - Manage and maintain Active Directory systems and support Active Directory health checks with scripts. - Maintain the certificate environment, including issuing and installing certificates without outages. - Develop scripts to monitor system health for Active Directory, DNS, and Certificate Authorities. - Design, develop, and support scalable, redundant infrastructure across physical, virtualized, and cloud environments. - Install, configure, and manage Windows-based certificate authority servers. - Configure group management policies, including role-based access control. - Set up and maintain administrator and service accounts, document systems, tune performance, and install system-wide software. - Apply NIST, DISA security controls, and security hardening best practices. - Implement critical system patches and manage storage space efficiently. - Collaborate daily with engineering teams and system owners to influence design and architect solutions. - Manage project priorities, deliverables, and deadlines effectively. - Produce clear documentation for solutions provided. Requirements - BS in Computer Science, Systems Engineering, or related discipline. - - 8+ years of systems engineering or administration experience (6+ years with a MS/MIS Degree). - Experience orchestrating workflows with data dependencies. - Proficiency with DevOps tools and scripting languages including PowerShell. - 5+ years of experience with Directory services (Microsoft Active Directory, Entra ID/Azure AD), Certificate Administration, and DNS. - 4+ years supporting Tier II & Tier III Windows OS support. - 3+ years of experience with ADFS, OKTA, or similar authentication services. - Experience managing certificates and certificate authorities like Microsoft, Digicert, Entrust/Sectigo, SSL.com. - Excellent communication skills, both verbal and written. - Ability to work independently and with cross-disciplinary teams. System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan. System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law. #M-2 #LI-CK1 Ref: #851-Rockville-S1

Manage and support Windows Server infrastructure including Active Directory, DNS, certificate authorities, scripting, and security compliance. | 8+ years systems engineering with expertise in Active Directory, Windows OS support, certificate management, and PowerShell scripting. | Job Title: Senior Windows Server Systems Administrator Location: Washington, DC Type: Contract Compensation: $40 - $65 per hour Work Model: Remote – offsite Hours: 40.0 hours per week Security Clearance: U.S. Citizenship required and current - ATF (Bureau of Alcohol, Tobacco, Firearms and Explosives) Public Trust preferred Overview • *This Senior Windows Server Systems Administrator can work fully remote but must be in the DC Metro area in case the team needs to meet in person. This is likely to be a contract-to-hire, and the conversion salary is 140K max.** Responsibilities - Support and manage Windows enterprise management technologies, including Active Directory, DNS, and Certificate Authorities. - - Configure, troubleshoot, and maintain Windows Server operating systems in support of Active Directory, DNS, and Certificate Authorities. - Manage and maintain Active Directory systems and support Active Directory health checks with scripts. - Maintain the certificate environment, including issuing and installing certificates without outages. - Develop scripts to monitor system health for Active Directory, DNS, and Certificate Authorities. - Design, develop, and support scalable, redundant infrastructure across physical, virtualized, and cloud environments. - Install, configure, and manage Windows-based certificate authority servers. - Configure group management policies, including role-based access control. - Set up and maintain administrator and service accounts, document systems, tune performance, and install system-wide software. - Apply NIST, DISA security controls, and security hardening best practices. - Implement critical system patches and manage storage space efficiently. - Collaborate daily with engineering teams and system owners to influence design and architect solutions. - Manage project priorities, deliverables, and deadlines effectively. - Produce clear documentation for solutions provided. Requirements - BS in Computer Science, Systems Engineering, or related discipline. - - 8+ years of systems engineering or administration experience (6+ years with a MS/MIS Degree). - Experience orchestrating workflows with data dependencies. - Proficiency with DevOps tools and scripting languages including PowerShell. - 5+ years of experience with Directory services (Microsoft Active Directory, Entra ID/Azure AD), Certificate Administration, and DNS. - 4+ years supporting Tier II & Tier III Windows OS support. - 3+ years of experience with ADFS, OKTA, or similar authentication services. - Experience managing certificates and certificate authorities like Microsoft, Digicert, Entrust/Sectigo, SSL.com. - Excellent communication skills, both verbal and written. - Ability to work independently and with cross-disciplinary teams. System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan. System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law. #M-2 #LI-CK1 Ref: #851-Rockville-S1