Constellation Energy Generation, LLC.

Design and maintain enterprise-grade APIs and backend services integrating SQL databases with AI/ML models, lead engineering teams, and oversee technical architecture. | Bachelor's degree with 5+ years experience or 9+ years without, strong proficiency in software languages, Azure cloud, and database management. | Who We Are As the largest private-sector power producer in the world and the nation's largest producer of clean and reliable energy, Constellation is focused on our purpose: lighting the way to a brilliant tomorrow for all. We have been the leader in clean energy production for more than a decade, and we are cultivating a workplace where our employees can grow, thrive, and contribute. Now integrated with Calpine, our portfolio includes 55 gigawatts of capacity from nuclear, natural gas, geothermal, hydro, wind and solar facilities, with the generating capacity to power the equivalent of 27 million homes. Our culture and employee experience make it clear: We are powered by passion and purpose. Together, we're creating healthier communities and a cleaner planet, and our people are the driving force behind our success. At Constellation, you can build a fulfilling career with opportunities to learn, grow and make an impact. By doing our best work and meeting new challenges, we can accomplish great things. Join us in meeting the country's energy needs today and tomorrow. Total Rewards Constellation offers an extensive selection of benefits and rewards to help our employees thrive professionally and personally. We provide competitive compensation and a wide-range of benefits that support both employees and their families, helping them prepare for the future. In addition to highly competitive salaries, eligible employees are offered a bonus program, 401(k) with company match, employee stock purchase program; comprehensive medical, dental and vision benefits, including robust wellbeing programs; disability and life insurance benefits; paid time off for vacation, holidays, and sick days; and much more. Expected salary range of $117,900 to $131,000, varies based on experience, along with comprehensive benefits package that includes bonus and 401(k). Primary Purpose of Position Constellation/Calpine is seeking a Full‑Stack / Backend Developer to design, build, and maintain enterprise‑grade APIs and Azure API Management (APIM) layers that securely expose data from SQL databases and AI/ML models. This role will focus on building scalable, secure, and reusable APIs that support internal applications, analytics platforms, and AI‑powered solutions across Constellation/Calpine. Primary Duties and Accountabilities Engage with business partners to gather information, analyze requirements and deliver practical, efficient and cost-effective solutions that satisfy business needs. Write product specifications and design documentation for assigned system components. Design, develop, and review complex code and technical architecture to ensure alignment with functional and technical specifications; deliver solutions including web, mobile, full stack, and integration applications across on premises and cloud environments; develop automated unit and UI tests. Lead engineering team and provide oversight for less experienced engineers; Stay on top of latest technologies and trends. Using error reports, establish priorities and assign out bugs to relevant team members for resolution. Support development of version control principles (e.g. Git and working within an agile environment), CI/CD pipeline and various automations. Ensure all risks and issues that affect the project are captured following set process and are actioned appropriately. Enhance knowledge of and compliance with preferred technologies, methodologies, standards and policies. Maintain and enhance technical knowledge and business acumen within the relevant discipline or function. Provide IT teams and business personnel with technology solutions by weighing advantages of technology trends, market availability of products, risks and benefits of technology to meet business/IT needs. Participate in IT architecture review and standards setting. Assist in the development of white papers, conducting presentations as needed to explain why a technology is being recommended by IT. Deliver production REST APIs that expose enterprise SQL data, managed and published via Azure APIM (gateway + developer portal). Build secure, high‑performance APIs and backend services integrating Azure SQL Database, Databricks, and enterprise data stores with Azure OpenAI, custom ML models, and RAG pipelines—optimizing SQL/stored procedures and enabling consumption of structured and unstructured data for AI‑driven applications. Apply Constellation/Calpine security standard, data protection and implement observability (logging/tracing) and reliability practices (HA/DR, governance). Minimum Qualifications Bachelor's degree in Computer Science, Engineering, Mathematics, or a related technical field with at least 5 years of relevant experience, or, in the absence of a degree, a minimum of 9 years of relevant experience. Demonstrated ability to lead small to medium teams in delivering software solutions Demonstrated strong software development capabilities coupled with the ability to work under tight deadlines Teamwork and self-motivation skills to achieve success in a rapidly evolving environment Excellent communication and presentation skills, with the ability to translate technical concepts for diverse audiences Knowledge of operating systems such as Windows or cloud platforms such as Azure, Amazon Web Services, or Google Cloud Strong knowledge of software development languages, such as Python, C#, JavaScript, Node.js, .NET, HTML or Angular Strong knowledge of SQL or NoSQL databases such as Oracle, SQL Server, Cosmos DB, MySQL, Redis, or Splunk Strong understanding of advanced programming concepts, data structures, and algorithms Preferred Qualifications Proven expertise in architecting and developing robust, cloud-native applications on Microsoft Azure, utilizing .NET/C# and Node.js backend frameworks. Demonstrated deep understanding of microservices architecture and design principles to deliver scalable, high-performance enterprise solutions. Experience designing and building enterprise APIs and delivering through APIM with strong relational database skills. Experience with Azure OpenAI or GenAI solutions by elevating Enterprise data from data platforms, analytics. Experience in integrating backend services with AI/ML models or AI platforms. Strong understanding of cloud native design principles on Microsoft Azure. Azure Components, SQL Server, Azure DevOps (Repos, Pipelines), Azure Key Vault, Application Insights Experience working in regulated or enterprise environments Strong problem‑solving and analytical abilities Ability to work across engineering, data, and AI teams Clear communicator with a focus on collaboration Ownership mindset and attention to operational excellence

Manage and maintain storage and backup environments, lead backup infrastructure build-out, support IT projects, and provide expert consultation for hybrid cloud operations. | 5 to 9 years experience in IT infrastructure or application design, proficiency in storage, compute, cloud technologies, and ability to provide 24x7 support with on-call participation. | Who We Are As the largest private-sector power producer in the world and the nation's largest producer of clean and reliable energy, Constellation is focused on our purpose: lighting the way to a brilliant tomorrow for all. We have been the leader in clean energy production for more than a decade, and we are cultivating a workplace where our employees can grow, thrive, and contribute. Now integrated with Calpine, our portfolio includes 55 gigawatts of capacity from nuclear, natural gas, geothermal, hydro, wind and solar facilities, with the generating capacity to power the equivalent of 27 million homes. Our culture and employee experience make it clear: We are powered by passion and purpose. Together, we're creating healthier communities and a cleaner planet, and our people are the driving force behind our success. At Constellation, you can build a fulfilling career with opportunities to learn, grow and make an impact. By doing our best work and meeting new challenges, we can accomplish great things. Join us in meeting the country's energy needs today and tomorrow. Total Rewards Constellation offers an extensive selection of benefits and rewards to help our employees thrive professionally and personally. We provide competitive compensation and a wide-range of benefits that support both employees and their families, helping them prepare for the future. In addition to highly competitive salaries, eligible employees are offered a bonus program, 401(k) with company match, employee stock purchase program; comprehensive medical, dental and vision benefits, including robust wellbeing programs; disability and life insurance benefits; paid time off for vacation, holidays, and sick days; and much more. Expected salary range of $121,500 to $135,000, varies based on experience, along with comprehensive benefits package that includes bonus and 401(k). Primary Purpose of Position Constellation is seeking a Systems Engineer (Storage and Backup Engineer) to provide hands-on support for the delivery and maintenance of IT solutions, specifically focusing on storage and backup technologies. This role involves analyzing complex hardware and software issues, maintaining storage platforms, and ensuring the performance and reliability of server solutions. The Systems Engineer will also be involved in customer engagement, project management services, and automating processes. Primary Duties and Accountabilities Accountable for engineering, implementing, and supporting solutions at the component level, including hands-on configuration, troubleshooting and optimization and supporting metrics for the same. Assess, develop, design & support custom system integration with platforms, specific to the needs of Security. Collaborate with leadership and others to develop future technology road maps, resource requirements, migrations strategies, and project schedules. Comprehend technologies and service offerings within the industry. Conduct technical discovery sessions with vendors and customers. Continuous improvement with technical knowledge, industry trends and business acumen within all Security disciplines or functions. Contribute to assigned IT projects and deployments to ensure solutions are delivered to meet business requirements. Determine manpower requirements for future outages and projects with the site QV personnel to support QV activities. Develop and provide input into presentations and/or Engineering and Architecture Review Boards. Establish direction and determine need for IT assessments, designs, connectivity, validating the connectivity of real-time systems and the deployment of associated technologies. Establish the design, configuration, deployment and operation of network systems and assist with any migrations. Lead and coordinate business projects, planning, maintenance and network connectivity for one or more major Business Units. Maintain relevancy and knowledge in current and evolving emerging networking technologies. Participate in potential refactoring, rebuild, or redesign required during Cloud migration. Provide and formalize feedback to leadership and peers to risks identified during business impact analysis, site risk assessments and disaster recovery planning. Provide consulting, guidance and recommendations to senior leadership. Provide expert-level network engineering, design and operation consultation with leadership, project teams and end users to identify system requirements and establish feasibility analysis on potential changes related to security and technical architecture. Serve as a senior network resource in the Hybrid Cloud enterprise journey encompassing ongoing architecture, design, planning, configuration, implementation, testing, operation and documentation of the enterprise network. Manage, monitor, and maintain the firm’s backup and restore environment using Netbackup and Commvault. Administer backups in a Linux-based environment, ensuring high availability and recoverability of critical data. Lead the build-out of a new backup environment, including hardware/software configuration and optimization Minimum Qualifications Bachelor's degree from a technical program with 5 years of experience in IT infrastructure or application design - or - Associate's degree from a technical program with 7 years of experience in IT infrastructure or application design - or - High School equivalent with 9 years of experience in IT infrastructure or application design. Provide 24x7 support and participate in on call rotation for critical production systems. Demonstrated expert proficiency in at least two engineering domains such as storage, compute, database, collaboration, application design, [cloud hosting and related technologies] Demonstrated consulting, presentation, and project management skills, with the ability to champion and influence decisions. Preferred Qualifications Experience administrating servers and storage on-prem (physical and virtual) and in Microsoft Azure and Oracle Cloud Infrastructure. Experience with Windows Server 2016-2022, Oracle Enterprise Linux, Solaris, Exadata hardware. Experience with scripting language such as Python, Shell. Demonstrated ability with knowledge in current versions of VMware hypervisor technology. Excellent communication skills - Able to effectively communicate highly technical information in non-technical terminology (written and verbal). Understanding of change management principles associated with sustaining high availability of systems and preventing change related incidents due to human performance factors. Experience with Azure cloud services and cloud experience. Certification in the relevant field of expertise

Plan and manage IT resources, finances, and services to deliver business results and high-complexity projects, while leading IT personnel through coaching and performance evaluation. | Bachelor's degree and 8 years of relevant experience including budget and technical project management, with proficiency in Azure, ADO, and Oracle or SQL databases. | Who We Are As the largest private-sector power producer in the world and the nation's largest producer of clean and reliable energy, Constellation is focused on our purpose: lighting the way to a brilliant tomorrow for all. We have been the leader in clean energy production for more than a decade, and we are cultivating a workplace where our employees can grow, thrive, and contribute. Now integrated with Calpine, our portfolio includes 55 gigawatts of capacity from nuclear, natural gas, geothermal, hydro, wind and solar facilities, with the generating capacity to power the equivalent of 27 million homes. Our culture and employee experience make it clear: We are powered by passion and purpose. Together, we're creating healthier communities and a cleaner planet, and our people are the driving force behind our success. At Constellation, you can build a fulfilling career with opportunities to learn, grow and make an impact. By doing our best work and meeting new challenges, we can accomplish great things. Join us in meeting the country's energy needs today and tomorrow. Total Rewards Constellation offers an extensive selection of benefits and rewards to help our employees thrive professionally and personally. We provide competitive compensation and a wide-range of benefits that support both employees and their families, helping them prepare for the future. In addition to highly competitive salaries, eligible employees are offered a bonus program, 401(k) with company match, employee stock purchase program; comprehensive medical, dental and vision benefits, including robust wellbeing programs; disability and life insurance benefits; paid time off for vacation, holidays, and sick days; and much more. Expected salary range of $153,900 to $171,000, varies based on experience, along with comprehensive benefits package that includes bonus and 401(k). Primary Purpose of Position Plan and manage resources, finances, scope and services within a functional area of Information Technology to deliver business results. Provide IT products, services and solutions on time, within budget and with the required functionality. Establish, maintain and enhance relationships with clients. Participate in developing and implementing strategy/policy. Manage large-scale projects of high complexity, size and change management risk. Primary Duties and Accountabilities Establish, maintain, and enhance relationships with business and IT partners. Evaluate performance and provide coaching for IT personnel. Participate in career development and succession planning processes. Promote diversity and foster teamwork, collaboration, and a learning organization. Provide input on development and retention processes for IT employees. Lead and manage IT projects and associated system integrators to deliver projects of medium to high complexity. Lead and manage IT staff and resources in accordance with IT Business Plan. Maintain current business knowledge/acumen, including application of technology solutions to deliver business results. Operate utilizing standard processes as defined within the Management Model where applicable. Oversee process improvement efforts and ensure adoption of standard processes and procedures that deliver sustainable top quartile cost and performance levels. Plan and manage scope, schedule, and budget for defined deliverables in accordance with IT project management standards. For operations/application maintenance: Plan and manage to defined service level agreements at agreed upon budgets. Prepare and manage budget for area of responsibility. Minimum Qualifications Bachelor's degree and 8 years of relevant experience, in lieu of bachelor's degree an equivalent combination of relevant education and experience Experience managing budgets for functional area of responsibility. Knowledge of business practices and processes related to role Experience leading and managing IT projects or sub teams and knowledge of IT project management Ability to effectively convey complex technical information to both technical and nontechnical audiences including investigators, senior management, team members and others Appropriate technical skills: Azure, ADO, Database (Oracle/SQL). Experience leading and managing technical projects and personnel Preferred Qualifications Master's degree Knowledgeable on the Solution Enablement Process (SEP) and its requirements Knowledgeable on the Responsible AI (RAI) process and its requirements Analytical skills, attention to detail, critical thinking, problem solving and independent decision making Project Management Certification