GraphQL Subject Matter Expert

Role: GraphQL Subject Matter ExpertLocation: Remote (U.S. Based)Engagement Type: Part-Time / Episodic ConsultingClearance: Able to obtain Public Trust clearance upon hireAbout 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 RoleStackular is seeking Senior-level GraphQL Subject Matter Expert (SME) to provide targeted technical guidance in support of a government client’s GraphQL modernization initiative. This role is ideal for engineers with deep expertise in GraphQL architecture who prefer an advisory role rather than full-time delivery.What You’ll Do- Advise on GraphQL federation architecture and tooling- Provide guidance on schema governance, validation, and versioning- Review architecture designs and schemas- Assist with complex integration and security challenges- Contribute to documented best practicesRequired Qualifications- Bachelor’s degree in Computer Science, Engineering, or equivalent experience- 10+ years of professional engineering experience- Deep expertise in GraphQL- Experience leading or advising GraphQL architecture decisions- Strong understanding of API security- Able to obtain Public Trust clearance upon hire- Candidates with strong GraphQL + API development experience and, ideally, Apollo Federation or Fusion-based GraphQL implementationsAreas of Expertise- GraphQL federation (Apollo Federation, schema composition)- Schema governance and lifecycle management- GraphQL security and query complexity controls- Integration with legacy systems- Observability and performance tuningPreferred Experience- Self-hosted GraphQL platforms- .NET-based GraphQL implementations- Government or regulated enterprise experience- Prior consulting or principal engineer roles