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Aviation, Enterprise Software, Aerospace, Data Management

Software Engineer

RemoteRemoteFull TimePosted 27 days agoVisa sponsorship availableHidden Gem · Himalayas

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Required skills

  • C#
  • NET
  • ASP.NET Core
  • ASP.NET Web API
  • GraphQL
  • Entity Framework Core
  • SQL
  • JWT
  • Authentication
  • Authorization

Nice to have

  • Angular
  • Oracle
  • DataLoaders
  • Result Limits
  • Resolver Efficiency
  • Worker Scheduled Tasks

Role summary

Seeking a Software Engineer with 4+ years of experience building production APIs in C#/.NET. The role involves designing, building, and maintaining GraphQL APIs for Quantum ERP data, extending the data layer with Entity Framework Core and Oracle, and optimizing API performance and security. Responsibilities include writing unit tests, supporting the Angular client, and documenting API schemas. Experience with ERP data models (finance, accounting, inventory) and API security (JWT, authentication, authorization) is crucial. Oracle and Angular experience are preferred.

Category: IT Services Location:
  • Design, build, and maintainGraphQL graph types, queries, mutations, and resolvers that expose Quantum ERPdata (work orders, purchase orders, GL/AP/AR, companies, inventory) accuratelyand safely.
  • Extend the Entity FrameworkCore data layer and Oracle package wrappers and repositories, writing correct,performant queries against the Quantum Oracle schema.
  • Optimize GraphQL execution: useDataLoader to avoid N+1 queries, apply sensible result limits, and keepresolver work efficient.
  • Maintain JWT-basedauthentication and authorization and respect multi-tenant scoping on everyrequest and query.
  • Translate business-layerprocess steps into API behavior that maintains parity with Quantum's businessrules.
  • Write and maintain unit testsacross the API, business, and data layers, and use the benchmark projects tocatch performance regressions.
  • Support the Angular clientwhere it consumes the GraphQL API, and keep the schema and client contract insync.
  • Contribute to worker scheduledtasks where API and background work overlap.
  • Document graph types, queries,and the Oracle-side dependencies each surface relies on.
  • Participate in code review, theweekly integration sync, and discovery sessions, and coordinate early with theCorridor / Aviate parity teams so we do not build the same capability two ways.

Requirements

  • 4+ years building productionAPIs in C# / .NET (ASP.NET Core or ASP.NET Web API).
  • Strong object-oriented C# and asolid grasp of layered service architecture (data, business, API).
  • Hands-on Entity Framework (EFCore or EF6) and strong SQL. Comfortable reading schemas, writing efficientqueries, and reasoning about ORM behavior and N+1 problems. Oracle experienceis a strong plus.
  • Practical understanding of APIsecurity: JWT / bearer tokens, authentication and authorization, and inputvalidation.
  • A track record of writing unittests and treating test coverage as part of the definition of done.
  • Comfort working against realbusiness or ERP data models where correctness and auditability matter (finance,accounting, or inventory domains).
  • Clear written communication andthe discipline to document schemas and open questions.
Details

Originally posted on Himalayas

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