Halcyon

Leverage industry relationships to generate pipeline, engage clients, articulate value propositions, and maintain strong client relationships. | 5+ years of sales in endpoint cybersecurity, proven quota attainment, strong negotiation skills, and ability to manage high-profile accounts. | What we do: Halcyon is the industry’s first dedicated, adaptive security platform that combines multiple proprietary advanced prevention engines along with AI models focused specifically on stopping ransomware. Who we are: Halcyon was formed in 2021 by a team of cyber industry veterans after battling the scourge of ransomware (and advanced threats) for years at some of the largest global security vendors. Comprised of leaders from Cylance (now Blackberry), Accuvant (now Optiv), Fireye and ISS X-Force (now IBM), Halcyon is focused on building products and solutions for mid-market and enterprise customers. As a remote-native, completely distributed global team, we recognize great talent can exist anywhere. We invite you to apply to a job you’re interested in and we'll work a plan to meet your needs. The Role: We are seeking an exceptional and results-driven Enterprise Account Executive - Northeast (NJ/PA), to join our team and make an immediate impact. Our ideal candidate excels at early-stage companies and has influential relationships within the industry, leveraging their in-depth knowledge of the cybersecurity landscape and customer needs to drive outstanding results. Responsibilities: Leverage existing industry relationships within key verticals to generate rapid pipeline and convert prospective clients with minimal ramp time. Be accountable to a defined set of pipeline metrics. Identify and engage potential clients, understanding their needs and presenting tailored solutions with an emphasis on outcomes. Articulate the value proposition of Halcyon’s solutions, presenting them in a compelling and relevant manner. Optimize client engagement post-sale, timing additional transactions appropriately. Cultivate and maintain strong relationships with existing clients, acting as a trusted advisor and understanding their evolving cybersecurity requirements. Conduct regular client reviews, assess satisfaction levels, and propose enhancements to further meet client objectives. Network via industry user groups, tabletop events and key industry conferences. Leverage strategic alliance partnerships to realize potential business opportunities and revenue growth. Facilitate continuous enablement, roadmap discussions, Quarterly Business Reviews (QBRs), and Executive Value Conversations (EVCs) to maximize client value and foster lasting partnerships. Negotiate contract terms, pricing and service agreements while ensuring alignment with both organizational and client objectives. Collaborate with internal stakeholders to optimize sales processes, streamline communications, and enhance overall client experience. Skills and Qualifications: Demonstrated ability to drive revenue growth and meet or exceed sales targets. 5+ years of sales in the endpoint cybersecurity industry. Proven track record of 100%+ quota attainment. Skillful pipeline management and the ability to balance high-profile accounts with SMBs. Ability to qualify leads based on key success metrics. Ability to establish and maintain client and executive-level relationships, focusing on their success and long-term partnerships. Familiarity with channel ecosystem and leveraging value added resellers. Proficient in conducting and leading negotiations for procurement and legal agreements, showcasing expertise in driving favorable terms and agreements. Excellent verbal and written communication skills to convey complex concepts in a clear and compelling manner to clients. Willingness to travel up to 75%. Benefits: Halcyon offers the following benefits to eligible employees: Comprehensive healthcare (medical, dental, and vision) with premiums paid in full for employees and dependents. Short and long-term disability coverage, basic life and AD&D insurance plans. Medical and dependent care FSA options. 401k plan with a generous employer contribution. Flexible PTO policy. Parental leave. Generous equity offering. The Company reserves the right to modify or change these benefits programs at any time, with or without notice. #LI-Remote Base Salary Range: $140,000 - $160,000 In accordance with applicable state and federal laws, the range provided is Halcyon’s reasonable estimate of the base compensation for this role. The actual amount may differ based on non-discriminatory factors such as experience, knowledge, skills, abilities, and location. Base pay is one part of the total package that is provided to compensate and recognize employees for their work, and this role may be eligible for additional discretionary bonuses/incentives, and equity in the Company. We understand it takes a diverse team of highly intelligent, passionate, curious, and creative people to develop the exceptional product we are building. Our dynamic team has incredible perspectives to share, just as we know you do, and we take great pride in being an equal opportunity employer.

Design, implement, and document validation tests for security products, including automation and troubleshooting. | Experience with Python, test design, RESTful API, gRPC, Windows/Linux application testing, virtualization, and technical documentation. | What we do: Halcyon is the industry’s first dedicated, adaptive security platform that combines multiple proprietary advanced prevention engines along with AI models focused specifically on stopping ransomware. Who we are: Halcyon was formed in 2021 by a team of cyber industry veterans after battling the scourge of ransomware (and advanced threats) for years at some of the largest global security vendors. Comprised of leaders from Cylance (now Blackberry), Accuvant (now Optiv), Fireye and ISS X-Force (now IBM), Halcyon is focused on building products and solutions for mid-market and enterprise customers. As a remote-native, completely distributed global team, we recognize great talent can exist anywhere. We invite you to apply to a job you’re interested in and we'll work a plan to meet your needs. The Role: Halcyon’s goal is to deliver an anti-ransomware solution that breaks new ground as to what a security product can deliver. Aligned with this goal, Halcyon is looking for an experienced engineer to contribute to our quality assurance practices, ensuring that Halcyon’s code maintains a high-quality standard. The high-quality code will ensure Halcyon’s product functions properly across all scenarios, helping protect customers from ransomware threats. Responsibilities: Design, implement, and contribute to validation testing of new product features and bug fixes Document and develop automated tests aligned to the features we’re developing and bug reports Design, document, and develop tools to assist with testing Contribute to and follow our Coding Style guidelines Able to deliver quality results working autonomously and as part of a unit Technical documentation of test plans, automation implementation architectures, and test reports Be a part of the company culture’s growth Skills and Qualifications: Ability to develop in Python using the Pytest framework Test design creativity Understanding and experience with communications channels such as RESTful API and gRPC Ability to troubleshoot Windows applications using tools such as debuggers, system profilers, and process monitors Knowledge and experience using virtualization tools such as VMWare Familiarity with SQL Experience testing Windows endpoint agent applications Experience testing Linux endpoint agent applications Good written and verbal communication with an ability to write technical documentation Fast-paced startup, past work experience Bonus Skills and Qualifications: Past work experience in testing and delivering an enterprise-level security product Experience with macOS virtualization and testing Knowledge of the Windows Security Model Knowledge of the Linux Security Model Knowledge of the MacOS Security Model Knowledge of additional languages: Rust, C++ Experience with Windows performance testing and benchmarking Familiarity with the AWS Cloud Background using GitHub for CI/CD purposes Benefits: Halcyon offers the following benefits to eligible employees: Comprehensive healthcare (medical, dental, and vision) with premiums paid in full for employees and dependents. 401k plan with a generous employer contribution. Short and long-term disability coverage, basic life and AD&D insurance plans. Medical and dependent care FSA options. Flexible PTO policy. Parental leave. Generous equity offering. The Company reserves the right to modify or change these benefits programs at any time, with or without notice. Base Salary Range: $140,000 - $180,000 Bonus Target: 10% #LN-DNI In accordance with applicable state and federal laws, the range provided is Halcyon’s reasonable estimate of the base compensation for this role. The actual amount may differ based on non-discriminatory factors such as experience, knowledge, skills, abilities, and location. Base pay is one part of the total package that is provided to compensate and recognize employees for their work, and this role may be eligible for additional discretionary bonuses/incentives, and equity in the Company. We understand it takes a diverse team of highly intelligent, passionate, curious, and creative people to develop the exceptional product we are building. Our dynamic team has incredible perspectives to share, just as we know you do, and we take great pride in being an equal opportunity employer.

Monitor and analyze security events to detect and respond to potential threats. Collaborate with various teams to improve product resilience and ensure effective communication during security events. | Candidates should have over 10 years of experience in relevant cybersecurity roles, with a strong focus on malware analysis and detection engineering. Proficiency in various analysis tools and scripting languages is essential. | What we do: Halcyon is the industry’s first dedicated, adaptive security platform that combines multiple proprietary advanced prevention engines along with AI models focused specifically on stopping ransomware. Who we are: Halcyon was formed in 2021 by a team of cyber industry veterans after battling the scourge of ransomware (and advanced threats) for years at some of the largest global security vendors. Comprised of leaders from Cylance (now Blackberry), Accuvant (now Optiv), Fireye and ISS X-Force (now IBM), Halcyon is focused on building products and solutions for mid-market and enterprise customers. As a remote-native, completely distributed global team, we recognize great talent can exist anywhere. We invite you to apply to a job you’re interested in and we'll work a plan to meet your needs. The Role: Halcyon’s mission is to empower our customers with a solution that defeats ransomware, makes "ransomware history", and ensures operational resilience. To support this mission, we are seeking a highly skilled Threat Analyst with deep technical expertise in malware reversing, detection engineering, and security operations. This role is critical to advancing our detection, prevention, and response capabilities, ensuring broad coverage of emerging threats, eliminating false positives, and effectively responding to these threats. The right candidate will ensure that our customers are kept safe from the latest ransomware without impacting legitimate business operations. Responsibilities Monitor and analyze security events to detect, investigate, contain, and escalate potential threats. Correlate data across multiple sources to identify malicious activity and patterns. Triage and assess events to determine impact, contain incidents, and drive threat remediation. Reverse engineer Windows PE files and other malicious binaries using static and dynamic techniques to uncover capabilities, persistence methods, and indicators of compromise (IOCs). Design, develop, and maintain internal tools to support threat triage, correlation, and research (log parsers, incident tracking systems, custom sandboxes, etc.). Conduct malware analysis in disassemblers, debuggers, and sandbox environments to understand payloads, infection chains, and evasion techniques. Research and track evolving ransomware techniques, publishing findings to improve detection logic and response processes. Collaborate closely with Customers, Incident Response, Engineering and Customer Success to improve product resilience and ensure smooth customer communication during security events. Skills and Qualifications 10+ years of combined experience in reverse engineering, detection engineering, threat research, incident response, or security operations related roles. High proficiency in malware reversing, with demonstrated expertise in analyzing Windows PE files, unpacking obfuscated samples, and extracting behavioral and static indicators. Experience with Artificial Intelligence / Machine Learning methodologies and their practical use cases to enhance cybersecurity strategies and operational efficiency. Hands-on experience with Yara, Python, and scripting languages (PowerShell, Bash/Shell, Batch). Advanced knowledge of static and dynamic analysis using tools such as IDA Pro, Ghidra, x64dbg, WinDbg, Cuckoo or similar sandboxes. Familiarity with EDR evasion techniques, persistence mechanisms, and exploitation methods. Cloud Service Provider experience preferred (cloud log analysis, security, threat hunting in cloud environments). Proven track record in cyber threat research, malware analysis, or security operations. Strong collaboration and communication skills, with the ability to explain technical findings to both technical and non-technical stakeholders. Benefits: Halcyon offers the following benefits to eligible employees: Comprehensive healthcare (medical, dental, and vision) with premiums paid in full for employees and dependents. 401k plan with a generous employer contribution. Short and long-term disability coverage, basic life and AD&D insurance plans. Medical and dependent care FSA options. Flexible PTO policy. Parental leave. Generous equity offering. The Company reserves the right to modify or change these benefits programs at any time, with or without notice. Base Salary Range: $175,000 - $200,000, 10% bonus, and equity. In accordance with applicable state and federal laws, the range provided is Halcyon’s reasonable estimate of the base compensation for this role. The actual amount may differ based on non-discriminatory factors such as experience, knowledge, skills, abilities, and location. Base pay is one part of the total package that is provided to compensate and recognize employees for their work, and this role may be eligible for additional discretionary bonuses/incentives, and equity in the Company. We understand it takes a diverse team of highly intelligent, passionate, curious, and creative people to develop the exceptional product we are building. Our dynamic team has incredible perspectives to share, just as we know you do, and we take great pride in being an equal opportunity employer.

Manage client accounts, develop new business opportunities, maintain strong client relationships, and negotiate sales agreements. | Requires experience in account management, business development, client relationship management, strong communication and negotiation skills, and fluency in English. | Required skills: Account Management, Business Development, Client Relationship Management, Communication Skills, Negotiation, Sales Required languages: English

Lead and coach sales teams, develop business strategies, manage Salesforce CRM, track KPI metrics, and ensure organizational effectiveness. | Requires strong business development, coaching, Salesforce expertise, team leadership, written communication, cybersecurity knowledge, KPI metrics tracking, mentoring, and organizational skills. | Required skills: Business Development, Coaching, Salesforce, Team Leadership, Written communication, Cybersecurity, KPI Metrics, Mentoring, Organizational Skills Required languages: English

Manage full AR and AP cycles, oversee tax compliance, process vendor payments and reimbursements, forecast cash flow, and support audit preparation. | 3+ years accounting experience, degree or equivalent, hands-on experience with Bill.com, Salesforce, Avalara, Rillet, Expensify, strong organizational and communication skills. | What we do: Halcyon is the industry’s first dedicated, adaptive security platform that combines multiple proprietary advanced prevention engines along with AI models focused specifically on stopping ransomware. Who we are: Halcyon was formed in 2021 by a team of cyber industry veterans after battling the scourge of ransomware (and advanced threats) for years at some of the largest global security vendors. Comprised of leaders from Cylance (now Blackberry), Accuvant (now Optiv), Fireye and ISS X-Force (now IBM), Halcyon is focused on building products and solutions for mid-market and enterprise customers. As a remote-native, completely distributed global team, we recognize great talent can exist anywhere. We invite you to apply to a job you’re interested in and we'll work a plan to meet your needs. We’re looking for an Accounting Operations Specialist to join our Finance team. Reporting directly to our VP of Accounting, Jackie Fenn, this role will own the full Accounts Receivable and Accounts Payable cycles—including invoicing, collections, vendor payments, reimbursements, and cash flow forecasting. You’ll also oversee tax compliance in Avalara and play a key role in strengthening accounting operations as Halcyon scales. What You’ll Do • Take full ownership of AR & AP cycles. • Review contracts in Salesforce/ERP; generate accurate invoices and manage collections. • Oversee sales tax compliance via Avalara (all registrations current). • Process ~200 vendor bills/month via Bill.com; prepare timely vendor payments. • Review Expensify employee expense reports; process reimbursements. • Forecast weekly cash collections/payments; communicate expected flows to the team. • Reconcile daily cash activity to ERP and partner with the Senior Accountant to resolve discrepancies. • Support annual audit preparation and participate in ad-hoc accounting projects. What We’re Looking For • 3+ years in Accounts Payable, Accounts Receivable, or general accounting. • Degree in Accounting or equivalent experience. • Hands-on experience with Bill.com, Salesforce, Avalara, Rillet, and Expensify strongly preferred. • Detail-oriented with strong organizational skills and ability to manage volume. • Strong communicator who can partner across Finance, Sales, and external vendors/customers. Compensation Range • $75,000 – $95,000 annually In accordance with applicable state and federal laws, the range provided is Halcyon’s reasonable estimate of the base compensation for this role. The actual amount may differ based on non-discriminatory factors such as experience, knowledge, skills, abilities, and location. Base pay is one part of the total package that is provided to compensate and recognize employees for their work, and this role may be eligible for additional discretionary bonuses/incentives, and equity in the Company. We understand it takes a diverse team of highly intelligent, passionate, curious, and creative people to develop the exceptional product we are building. Our dynamic team has incredible perspectives to share, just as we know you do, and we take great pride in being an equal opportunity employer.