Senior Software Engineer Developer

We are seeking a Senior Software Engineer Developer to design, develop, and maintain complex software systems supporting mission-critical platform services in a government contracting environment. This role requires expertise in cloud-native architecture, distributed systems, and secure software development practices. The ideal candidate will provide technical leadership while building scalable backend services and microservices that meet DoD compliance requirements.

Applied Research Solutions (ARS) is respected as a world-class provider of technically integrated solutions as we deliver premier talent and technology across our focused markets for unparalleled, continuous mission support. Awarded a Best Places to Work nominee since 2020, ARS recognizes that without our career‑driven, loyal professionals, we would not be able to deliver state‑of‑the‑art results for our mission partners. We firmly believe that prioritizing our employees is of the utmost importance.

We provide a culture where our employees are challenged to meet their career goals and aspirations, while still obtaining a work/life balance. ARS employees are motivated through our industry competitive benefits package, our awards and recognition program, and personalized attention from ARS Senior Managers.

• Design, develop, and maintain scalable, efficient, and secure code for web applications and backend services in Azure cloud environments
• Build and optimize systems that handle high load, low latency, and mission‑critical workloads with focus on reliability and performance
• Debug complex issues in distributed and multi‑threaded environments, troubleshooting applications for speed, scalability, and efficiency
• Implement microservices architecture using containerization technologies (Docker, Kubernetes) and service communication patterns (gRPC, REST APIs, message queues, event‑driven systems)
• Write well‑documented, maintainable code and participate in code reviews to ensure adherence to design requirements and coding standards
• Build and sustain comprehensive testing frameworks including smoke testing, regression testing, and automated test suites
• Actively participate in architectural discussions and decisions for new features and system design improvements
• Provide technical guidance and mentorship to engineers and developers on the team
• Collaborate with cross‑functional teams including Dev Ops, architecture, and project management to define, design, and ship new features and enhancements
• Review and test software components for adherence to design requirements and document test results
• Resolve software problems and optimize existing systems for improved performance
• Other duties as assigned

• Must be US Citizen
• Education:
  
  Bachelor's degree in Computer Science, Software Engineering, or related technical field
• Experience:
  
  Minimum 7 years of professional software development experience
• Cloud Platforms:
  Hands‑on experience with Azure cloud services and architecture; AWS experience is a plus
• Programming:
  Strong proficiency in modern programming languages (e.g., Java, C#, Python, Go, or similar)
• Microservices & Containers:
  Proven experience designing and implementing microservices architecture using Docker and Kubernetes
• APIs & Integration:
  Experience developing and consuming RESTful APIs, gRPC services, message queues, and event‑driven architectures
• Distributed Systems:
  Experience building and debugging distributed systems and multi‑threaded applications
• Development Practices:
  Strong understanding of CI/CD pipelines, version control (Git), and Dev Sec Ops  principles
• Testing:
  Experience with automated testing frameworks, unit testing, integration testing, and regression testing
• Performance Optimization:
  Track record of optimizing applications for scalability, efficiency, and high performance
• Security:
  Understanding of secure coding practices and software security principles in government/DoD environments

All positions at Applied Research Solutions are subject to background investigations. Employment is contingent upon successful completion of a background investigation including criminal history…