Facebook Meta API Architect Developer​/ago

Senior Facebook API Architect (.NET Focused)

Remote | Contract Full-Time or Part-Time Considered

We are seeking a highly experienced Facebook API Architect to evaluate, redesign, and optimize an existing social media integration architecture within a SaaS platform
. This individual will play a critical role in reviewing current implementation decisions, identifying architectural gaps, and implementing scalable, sustainable improvements.

This is not a role for someone who has simply made basic API calls. We are looking for someone who has deep, hands‑on experience working extensively with Facebook’s ecosystem
, particularly the Graph API and Marketing/Ads APIs
, and who understands the nuances of authentication,
rate limiting
, permissions, versioning,
webhooks
, ad objects,
campaign management
, and long‑term maintainability.

The environment is primarily .NET-based
, with some PHP components.

This opportunity is fully remote and open to part‑time engagement for the right expert.

• Conduct a comprehensive review of an existing Facebook API architecture
• Identify foundational architectural issues and recommend improvements
• Redesign and implement scalable, maintainable API integrations
• Optimize performance, reliability, and long‑term maintainability
• Work closely with internal engineering leadership to guide architectural decisions
• Ensure proper handling of:
  • Facebook Graph API objects and permissions
  • Facebook Marketing / Ads API integrations
  • OAuth flows and token lifecycle management
  • Webhooks and event‑driven architecture
  • Rate limits
    , error handling, and version changes
• Provide strategic guidance on best practices for large‑scale social platform integrations

• Extensive, deep hands‑on experience with Facebook APIs
  • Facebook Graph API
  • Facebook Marketing / Ads API
• Experience building or maintaining systems that:
  • Manage posting across Facebook and other social platforms
  • Support advertising,
    campaign management
    , and monitoring
  • Handle complex API workflows at scale
• Strong architectural experience within .NET / C# environments
• Experience evaluating and refactoring existing API architectures
• Strong understanding of OAuth
  , webhooks
  , API versioning
  , and rate limiting strategies
• Experience in SaaS or multi‑tenant application environments

• Experience integrating with additional social media APIs (Instagram, Linked In, X, etc.)
• Some familiarity with PHP (secondary to .NET)
• Experience working on advertising or marketing technology platforms
• Prior experience cleaning up or re‑architecting legacy API integrations

• Clear identification of architectural weaknesses in the current Facebook integration
• A redesigned, scalable approach aligned with Facebook API best practices
• Improved stability, maintainability, and performance
• Documentation and strategic guidance that strengthens the internal development team