Software Engineer, Senior
Job Title: Software Engineer (TS/SCI Eligible)
Location: Washington, D.C.
Clearance Required: Active Top Secret (SCI eligibility required)
Overview:
We are seeking an experienced Software Engineer to design, build, and support advanced application solutions that power critical IT infrastructure. In this role, you will work alongside architects and cross-functional teams to develop scalable systems, integrate third-party technologies, and deliver high-impact data-driven solutions. This is an opportunity to contribute to complex, mission-critical environments while driving innovation, automation, and continuous improvement.
What You’ll Do:
- Design, develop, test, and manage application development projects supporting enterprise IT infrastructure
- Integrate third-party components and develop custom capabilities to enhance system functionality
- Maintain and improve existing codebases for performance, scalability, and reliability
- Recommend and implement process improvements, including automation of operations and maintenance tasks
- Collaborate with lead architects to design, build, and deploy scalable applications
- Work on large-scale data processing, advanced analytics, and computational/statistical modeling initiatives
- Participate in all phases of the software development lifecycle (SDLC), including planning, requirements gathering, development, testing, and QA
- Conduct code reviews, architecture discussions, and technical milestone evaluations
- Support best practices, resource estimation, and knowledge sharing across teams
Required Qualifications:
- Bachelor’s degree in Computer Science, Engineering, or related field
- 8+ years of experience in software development and application management
- Strong experience with application design, development, testing, and deployment
- Experience integrating third-party systems and APIs
- Proven ability to enhance and maintain existing codebases
- Experience with automation, process improvement, and scalable system design
- Background in large-scale data processing, analytics, or statistical modeling
- Deep understanding of the full software development lifecycle
- Active Top Secret clearance with SCI eligibility
- Ability to pass background checks as required
Core Skills:
- Strong analytical and problem-solving abilities
- Excellent communication and collaboration skills
- Proficiency with tools such as Microsoft Office and Adobe suite
- Ability to work effectively in fast-paced, dynamic environments
- Strong documentation and organizational skills
Why Join Us?
You’ll be part of a collaborative, mission-driven team working on complex and meaningful technical challenges. We offer an environment where innovation is encouraged, contributions are valued, and growth is supported.
At blueStone Solutions Group, we don’t just place professionals — we connect ambitious talent with some of the most sought-after companies through contract, contract-to-hire, and direct hire opportunities. We take pride in uncovering career paths that aren’t always visible on the open market, giving our candidates access to roles that truly move the needle.
When you work with blueStone, you’ll discover opportunities you might not find anywhere else. We connect you with rewarding roles at leading companies, offering competitive pay and comprehensive benefits that support both your career and your future. Our goal is to open doors, guide your journey, and help you take the next step toward achieving your professional goals.

