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Sr. Software Engineer


Job Category: Information Technology/MIS
Posted on: 04/20/2026, expires on 06/19/2026 (59 days)
Job reference #: 136422-en-us-1

Location
Chicago, IL US-Region III (Mid-West)
Address: 100 N Riverside Plaza, Suite 900
Zip/Postal Code: 60606

Compensation
Unspecified Wage
$ Per Diem


Job description

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

Lead activities relating to designing, building, testing, implementing and maintaining solutions, products and processes. Provide IT teams and business personnel with technology solutions by evaluating technology standards, market availability of products, risks and benefits of technology to deliver solutions that meet business/IT needs. Coordinate the tasks of less experienced engineers and collaborate across teams as needed. Independence level: Works independently with minimal guidance. Works closely with scrum masters, project managers, QA, Creative, and UX team members to ensure compliance with project needs. Your role will be centered on the development and improvement of new and existing features. Additionally, you will be reviewing the code of your peers, advocating for standard development methodologies, and participating in an inclusive, energetic and highly cross-functional team. The role encompasses architect, design, implementation, and testing to ensure building products right and to release them with high quality.


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.


Minimum Qualifications

  • Bachelor's degree in Computer Science, Engineering, Mathematics, or a related technical field and 5 years of relevant experience; in lieu of a degree, 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, Solaris, or Linux, or cloud platforms such as Azure, Amazon Web Services, or Google Cloud
  • Strong knowledge of software development languages, such as Python, Perl, C#, Java, JavaScript, Node.js, .NET, HTML, Angular, Swift, Objective C, Android, or Xamarin
  • 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

  • Master's degree in Computer Science or a related field and 3 years of relevant experience
  • Experience leading software development efforts, designing conceptual data models and system architecture, and developing user interfaces
  • Experience with Agile software development and test-driven development
  • Experience in automated testing including unit testing, UI testing and functional testing
  • Demonstrated understanding of what makes good software design, a deeper understanding of programming languages, and an ability to solve engineering problems of increasing difficulty
  • Experience building highly scalable applications
  • Experience with or exposure to Agile Scrum, Kanban, and interactive development processes.
  • Ability to prioritize work, manage time effectively and manage workload efficiently

Other requirements
Degree

Experience
Unspecified

Security Clearance
Unspecified

Qualifications
Unspecified


 

Contact information
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