What are the responsibilities and job description for the Integration Engineer (GraphQL / .NET) position at Stackular?
Role: Integration Engineer (GraphQL / .NET)
Location: Washington, DC (Hybrid / Approved Remote)
Engagement Type: Full - Time
Clearance: Able to obtain Public Trust clearance upon hire
About us: At Stackular, we are more than just a team – we are a product development community driven by a shared vision. Our values shape who we are, what we do, and how we interact with our peers and our customers. We're not just seeking any regular engineer; we want individuals who identify with our core values and are passionate about software development.
About the Role
Stackular is seeking a Mid- to Senior-level Integration Engineer to join a cross-functional Integrated Program Team (IPT) supporting a government client. In this role, you will be a hands-on software engineer responsible for building and delivering a federated GraphQL API that will serve as the foundation for future enterprise APIs.
You will work day-to-day alongside client engineers and contractors in a modern, containerized .NET environment, contributing code across the full lifecycle—from schema design and service implementation to CI/CD and deployment. This is a delivery-focused role with strong emphasis on collaboration, quality, and repeatable engineering patterns.
What You’ll Do
- Design, build, and evolve GraphQL subgraphs using ASP.NET Core and Hot Chocolate
- Implement data access patterns against PostgreSQL and existing enterprise systems
- Deliver production-ready features in two-week Agile sprints
- Participate in sprint planning, backlog grooming, code reviews, demos, and retrospectives
- Integrate services into Docker-based CI/CD pipelines using Azure DevOps and Helm
- Ensure alignment with security, authentication (OAuth2 / Entra), and operational standards
Required Qualifications
- Bachelor’s degree in Computer Science or equivalent experience
- 5 years of software engineering experience
- Hands-on experience with GraphQL APIs
- Strong proficiency in C# / .NET Core
- Experience with Agile/Scrum teams
- Familiarity with Docker and Kubernetes
- Experience with relational databases (PostgreSQL preferred)
- Able to obtain Public Trust clearance upon hire
Preferred Experience
- GraphQL federation or schema composition
- Hot Chocolate or other .NET GraphQL frameworks
- CI/CD pipeline experience
- OAuth2/JWT authentication
- Experience in regulated or government environments