What are the responsibilities and job description for the Full Stack Engineer position at QSS?
Opportunity via QSSHire | Talent-as-a-Service Recruiting Role:
Senior Full-Stack Software Engineer(AI Platform)
Location: Herndon, VA - Hybrid
Clearance Required: TS/SCI w FSP
Are You a Software Engineer Ready to Take on Mission-Critical National Security Work?
QSSHire is partnering with a cleared federal contractor on a high-impact program. We’re searching for a Senior Full-Stack Software Engineer with deep Java and modern UI skills and a passion for mission-focused innovation.
You’ll join a fast-paced team modernizing how secure environments deliver AI-enabled applications. From refactoring Java services to shipping TypeScript UIs and deploying workloads on Kubernetes, your work will empower analysts, operators, and leadership with intuitive,
reliable capabilities. This role is hybrid in Herndon, VA (onsite heavier during ramp-up with WFH flexibility once up to speed).
If you ’refluent in Java, React/Angular/Vue, TypeScript/JavaScript, and Python scripting, and you thrive in high-security environments, this could be your next mission-critical opportunity.
In This Role, You’ll:
- Design, build, and extend secure, scalable Java services and APIs
- Deliver modern front-ends with React/Angular Vue, TypeScript/JavaScript, CSS, and JSON- driven UIs
- Investigate, understand, and reverse-engineer existing codebases; map dependencies and safely refactor
- Work with Postgres and DynamoDB; design schemas, queries, and integrations
- Integrate messaging and event patterns using Kafka / SNS / SQS
- Ship on AWS (e.g., EC2, S3, EKS, OpenSearch/Elasticsearch, KMS, DynamoDB, Route53, Lambda, CloudWatch/CloudTrail, Glacier)
- Containerize and deploy on Kubernetes; implement CI/CD with Jenkins and GitHub
- Collaborate in a pragmatic DevOps culture, document in Confluence and coordinate via Slack
- Partner with data/ML teams to productionize AI-adjacent features and integrations
You’ll Succeed Here If You Have:
- 8 years of professional software development with a strong emphasis on Java
- Hands-on experience building Spas with React/Angular/Vue and TypeScript/JavaScript, solid CSS fundamentals
- Proficiency with GitHub workflows, code reviews,and testing best practices
- Experience operating in AWS and Kubernetes environments
- Practical knowledge of relational and NoSQL databases (Postgres, DynamoDB)
- Comfort reverse-engineering legacy services and improving reliability, performance, and security
- Clear documentation and strong communication with technical and mission stakeholders
Bonus Points If You Have:
- Depth in EKS, networking, and IAM/KMS; Lambda and infrastructure-as-code experience
- Production experience with OpenSearch/Elasticsearch and observability practices
- Kafka operations and performance tuning; event-driven design patterns
- Jenkins pipeline authoring, Helm, and automated testing frameworks
- Experience integrating model endpoints or retrieval features into applications
- Background supporting intelligence or national security programs
- A bachelor’s degree in Computer Science (or equivalent experience)
Why Join QSSHire?
We’re not your traditional recruiting firm. As a modern Talent-as-a-Service provider, QSSHire gives you the support, insight, and transparency you need to land roles that move your career forward.
Let’s talk, this could be your next great mission.