Backend Developer – Integrations; Meta, OpenAI

We are seeking a highly skilled Backend Developer – Integrations (Meta, OpenAI) to design, develop, and maintain robust backend services and API integrations. The ideal candidate will specialise in connecting our internal systems and products with Meta’s APIs and OpenAI’s ecosystem.This role involves building scalable integration layers, ensuring data security, and optimising performance across multiple third-party platforms.

Must-have skills

• Strong backend in .NET(C# preferred;  familiarity a plus)and ASP.NET Web API
  .
• API design &integration :
  
  REST/Graph
  
  QL, OAuth2, webhooks, pagination, rate-limits, idempotency,retries, exponential backoff.
• Meta Graph APIs (Whats App Business ),
  OpenAI API
  usage patterns (prompting, streaming,batching, cost control).
• SQL Server expertise(indexes, query tuning, transactions);
  Redis
  caching.
• Security &compliance :secrets management, audit logging, data protection, multi-tenant patterns.
• CI/CD (Azure Dev Ops orGitHub Actions), unit/integration testing.

• Experience integrating with Salesforce
  and Dynamics 365
  endpoints/Dataverse.
• Docker, containerizeddeployments; message-driven architectures (event sourcing/Saga).

Education:

Bachelor’s degree in Computer Science, Software Engineering, or related field (or equivalent experience)