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Fiverr Pro
English
$
USD
I will build a production rest API or backend integration
Zach Esenbock
About this gig
I will turn a defined business workflow and system boundary into a maintainable REST API or backend integration. The work begins with discovery and contract definition, then moves through implementation, focused automated tests, documentation, and a clear handoff.
Endpoint includes one contained endpoint or integration workflow, validation, focused tests, API notes, and handoff.
Service includes a defined multi-endpoint service or substantial integration, scoped data model work, error handling, automated tests, API documentation, and deployment guidance.
Subsystem includes a production-oriented backend subsystem with agreed endpoints or workflows, integration and data design, permission hooks, broader tests, documentation, deployment support, and a recorded handoff.
Entry packages do not include a complete enterprise platform. UI design, full frontend applications, provider charges, hosting, licenses, broad data migration or cleanup, and major scope changes are excluded. Final architecture depends on existing systems, access, vendor constraints, and security requirements. Revisions refine agreed behavior; new endpoints, vendors, or workflows require a new scope.
Get to know Zach Esenbock
Zach Esenbock
Senior Software Architect AI Data APIs and SaaS
- FromUnited States
- Member sinceAug 2026
- Avg. response time1 hour
Languages
English
I help businesses turn slow systems, unreliable integrations, disconnected data, and high-friction operations into maintainable software. I am a software and data architect specializing in APIs, backend services, databases, and AI-enabled workflows.
My work targets a defined outcome: diagnose a bottleneck, design a credible architecture, implement an integration, or automate an internal workflow. I use AI-assisted engineering while keeping business rules, validation, tests, documentation, and maintainability central. I turn ambiguity into a clear scope and practical technical path.
Other Software Development Services I Offer
FAQ
Which stacks can you use?
I commonly work with TypeScript, Node.js, NestJS, REST APIs, PostgreSQL, SQL Server, Prisma, C#, .NET, and cloud infrastructure. The existing system and buyer constraints determine the final choice.
Is deployment included?
Guidance is included in Standard and deployment support is included in Premium. Hosting and third-party costs are not included, and production changes require buyer authorization.
Are automated tests included?
Yes, focused tests are included in every implementation package. Test depth follows the agreed business rules and integration boundaries.
Can you integrate a third-party vendor?
Yes, when the buyer supplies accurate documentation, authorized sandbox access, and a responsive vendor contact if needed. Vendor delays may affect delivery.
