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Expertise

Application API Architect

Designing API-first applications and integration layers that are predictable, resilient, and easy for teams to build on.

Modern products live and die at their boundaries, so it's important to understand how services communicate, how data moves, and how APIs are exposed to other systems and teams. As an application & API architect, my focus is on making those boundaries clean, intentional, and stable so your platform can evolve without breaking everything around it.

That means defining clear contracts, choosing patterns that fit your domain, and shaping the internal architecture so features can be delivered quickly without creating hidden coupling or performance issues. We work across the full stack—services, APIs, data access, and integrations—to ensure the system feels coherent instead of stitched together.

For most teams, this role becomes the glue between product goals, engineering reality, and long-term maintainability. The result is an application and API layer that is easier to reason about, safer to extend, and far more pleasant for developers to work with.

What We Design

  • API-first application architectures and service boundaries
  • RESTful and event-driven API designs with clear versioning strategies
  • Request/response, error-handling, and pagination patterns for consistency
  • Authentication, authorization, and rate-limiting approaches
  • Integration patterns for third-party platforms and internal services

What This Means for You

  • APIs that are predictable, well-documented, and pleasant to consume
  • Less breakage when new features, partners, or services are added
  • Cleaner separation between front-end, back-end, and data systems
  • Fewer rewrites caused by early architectural shortcuts
  • A platform that can support integrations, analytics, and new products over time

“A good API layer feels boring—in the best way possible. It just works, release after release.”

Strong application and API architecture keeps complexity at the edges, so your teams can build features without fear.

Need an API-First Architecture You Can Grow On?

If you're planning a new platform, refactoring a monolith, or untangling integrations, we can design an application and API layer that will support the next stage of your product.

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StepStream Solutions

StepStream Solutions is a fractional CTO and product acceleration studio helping founders build trustworthy data platforms and modern cloud foundations.

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Solutions
How We Partner
  • Fractional CTO leadership for seed to growth teams
  • End-to-end data platform and product assessments
  • Embedded squads for net-new builds or modernization
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