user avatar

Senior Software Engineer (C#/Java) – Remote

TEKsystems c/o Allegis Group

Posted today

Job Requirements

Remote
Secret Polygraph not specified
Mid Level Career (5+ yrs experience)
$80,000 - $122,000

Job Description

Senior Software Engineer (C#/Java) – Remote
Location: 100% Remote
Clearance Required: Active Secret (or higher)
Job Type: 3 MONTH CONTRACT

Overview
We are seeking Senior Software Engineers (C# or Java) to support the modernization and sustainment of a mission-critical command-and-control system supporting mobility operations across the Air Force.
This role is ideal for engineers who thrive in Agile environments, enjoy working across the full stack, and want to contribute to secure, scalable cloud-based systems supporting national security missions.

What You’ll Do

Design, develop, test, and maintain scalable applications using C#/.NET or Java
Support modernization efforts, including migration to AWS GovCloud environments
Contribute to front-end (React) and/or backend services depending on experience
Participate in Agile development cycles, including sprint planning and code reviews
Write clean, efficient, and maintainable code
Implement and maintain CI/CD pipelines and automated deployment processes
Develop and execute automated test scripts using tools such as Selenium, Cypress, or TestComplete
Analyze system requirements and support task prioritization
Conduct code reviews and refactor existing codebases
Mentor junior developers and contribute to team growth
Ensure security and compliance through code analysis and automated scanning tools


Required Qualifications

Active Secret Security Clearance
Bachelor’s degree in Computer Science, Engineering, or related field
(or additional years of experience in lieu of degree)
Experience with C#/.NET and/or Java development
Experience with React.js or modern frontend frameworks
Hands-on experience with AWS cloud environments
Experience with containerization technologies (Docker preferred)
Strong understanding of SQL and relational databases
Experience working in Agile development environments
Understanding of CI/CD pipelines and DevOps practices


Preferred Qualifications

Full-stack development experience (frontend + backend)
Experience working with containerized applications
Familiarity with test automation frameworks
Prior experience supporting DoD or federal government programs


Experience Levels
We are hiring across multiple levels:


Software Engineer I:
3+ years experience (or 6+ without degree)


Software Engineer II:
6+ years experience (or 8+ without degree)


Software Engineer III (Senior):
8+ years experience (or 10+ without degree)



Why Join

Support a high-impact, mission-critical program
Work with modern tools in a cloud-first environment (AWS GovCloud)
Collaborate with a team focused on innovation, security, and continuous improvement
Opportunity to mentor and grow within a strong engineering culture


If you're interested in supporting critical defense systems while working with modern technologies in a flexible remote environment, we’d love to connect.
group id: 10105424
N
Name HiddenRecruiter
Find TEKsystems c/o Allegis Group on Social Media
Network Employers
user avatar
About Us
We’re partners in transformation. We help customers activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services and real-world application, we work with progressive leaders to drive change. That’s the power of true partnership. TEKsystems is an Allegis Group company.

TEKsystems c/o Allegis Group Jobs


Job Category
IT - Software
Clearance Level
Secret