RTS Questionnaire · Question 11 of 52 · file: answers/q11.html
Have you worked with GraphQL? If yes, for how long and in what context?
GraphQLAPIBackend
✅ Yes — GraphQL has been part of my API toolbox for roughly 4 years, mainly in advanced/enterprise scenarios.
🧪 Interactive proof: this answer has its own page with a live GraphQL workflow, the schema and resolvers behind it and the acceptance criteria — open the Q11 GraphQL proof →
Technical detail
- 📐 Schema design — SDL/schema-first definitions with types, interfaces, enums, input objects, pagination (cursor/Relay-style connections) and clear nullability contracts; code-first definitions in C# (Hot Chocolate/GraphQL.NET-style) and Python (Strawberry/Ariadne-style).
- 🔧 Resolvers and performance — query/mutation/subscription resolvers, batching and caching with DataLoader-style patterns to eliminate N+1 queries, depth and complexity limits, persisted queries and query allow-lists for safety.
- 🔐 Security and governance — field-level authorization, JWT/OAuth2 integration, rate limiting, introspection control in production, error masking so internals are not leaked, and schema versioning/deprecation strategy.
- 🧩 Integration — GraphQL gateways in front of REST/gRPC services, federation-style composition across bounded contexts, and consumption from Angular/React clients through typed code generation.
🎯 Typical context in my projects: aggregating data from multiple back ends into a single, client-friendly graph — for example a B2B/e-commerce or analytics platform where mobile and web clients need different field subsets without versioned endpoints. 🧪 I cover resolvers with unit tests and validate performance with query-cost analysis and tracing before release.
🧾 CV evidence: CV lists 'Graphql Advanced' in the Senior Pipeline Engineer/Team Lead technology set and a dedicated GraphQL concept page; 2025 technical assessment includes a FastAPI/REST + GraphQL serving layer with JWT guards and documented schema.