Tech Stack
Job Description, Responsibilities & Requirements
Hire API Developers
When your product depends on multiple services, API reliability decides whether releases stay predictable. Or whether teams lose time on urgent fixes and scope creep. Hire API developers with KPS to reduce latency, avoid failure points in the API layer, and keep integrations stable as your system evolves. That means fewer production incidents, fewer emergency sprints, and more predictable budgets for stakeholders.
- 1 day to kick off your hiring process
- 200+ developers in our pre-vetted API talent pool
- 97% of our API developers stay on projects for 12+ months
About the Position
Hire API developers with KPS to ensure your integrations remain predictable and stable. Our experts engage with systems where multiple teams and partners rely on the same interfaces. They define ownership boundaries early, keep interface documentation current, and ship changes safely through versioning, error handling, and targeted testing.
Responsibilities
- Reduce surprises during delivery by focusing on clear contracts, compatibility, and predictable production behavior.
- Implement consistent contracts and API testing to prevent integration regressions.
- Follow existing patterns, document changes, and focus on reliability basics: stable responses, solid error handling, and tests for the endpoints.
Requirements
- API design
- RESTful services
- OAuth 2.0
- PostgreSQL
- Docker
- CI/CD
- REST APIs
- System integrations
- OpenAPI/Swagger
- Postman
- API testing tools
- CI pipelines
- Node.js
- TypeScript
- Building RESTful APIs
- Unit tests
- API keys
Nice to Have
- Conversationally fluent in English (B2+)
We Offer
- Competitive salary ranging from $1500 to $3900 per month
- Remote work opportunities
About the Company
KPS engages API developers for systems where multiple teams and partners rely on the same interfaces. They define ownership boundaries early, keep interface documentation current, and ship changes safely through versioning, error handling, and targeted testing.
Client Feedback
Clients return because KPS doesn’t "just connect services". The team first clarifies the business goal behind each integration, and then picks the safest path to implement it. That approach works especially well with legacy APIs, mismatched data formats, and unclear ownership between systems, where small mistakes can trigger outages and unplanned spend.
Our Process
KPS uses a structured hiring process so your team can focus on working on the product. Before you spend time on final interviews, we check the candidate's fit (communication style, work habits, and practical experience with APIs).
Step 1: Kick-off call
The account manager starts with a discovery session to understand your goals, team structure, and constraints across software systems. This ensures we recommend API developers who bring the right value, not just skills on paper.
Step 2: Sourcing
The recruitment team handpicks candidates from our talent pool based on your requirements for developing APIs. Every recommendation is vetted to match both your technical needs and cultural fit.
Step 3: Initial HR interview
Our talent acquisition specialists validate working style, accountability, and clear communication. This ensures the candidate can collaborate smoothly and understand your expectations.
Step 4: Tech interview
A senior engineer checks real-world work across API design, error handling, versioning, and integration patterns. We go beyond textbook knowledge to assess practical problem-solving.
Step 5: Client interview
You meet the shortlisted developers and confirm a fit with your development team. We support you with interview questions (if needed) or just let you take the lead.
Step 6: Offer
Once you choose a developer, the recruiter handles contract signing, onboarding, and all admin. You get a full-time API developer ready to start without the paperwork stress.
Step 7: Retention
HR team stays involved after the start to support long-term delivery across cross-functional teams. Regular check-ins, support from your delivery manager, and clear escalation paths help keep collaboration stable as priorities shift.
Our Strengths
- Up-to-date availability: We track availability and readiness across remote API developers, so candidate recommendations reflect who can actually start as soon as possible.
- Screening based on your context: Before candidates reach you, we screen them against your product model, integration surface, and constraints in your specific web application development case, including enterprise systems where changes are harder to roll back.
- Senior review: A senior engineer validates core technical skills and checks how candidates reason about API contracts, work with business requirements, change safety, and data security during production incidents.
- Flexible shortlists: If priorities shift, KPS can scale the team up or down without restarting the process, add specialists for a release push, then reduce scope when the heavy lifting is done to protect the budget.
- Support after onboarding: HR and delivery stay involved after onboarding to support performance, alignment, and practical operational efficiency, with a dedicated project manager available when coordination needs to stay tight.
- Clear pricing: Pricing stays predictable and easy to track, so bringing in external developers doesn’t create extra admin work or surprise costs, even when you need to hire an API developer again quickly.
Why Work with Us
- Contract-first thinking: API contracts stay clear and consistent as features change, which prevents surprise breakages and keeps releases predictable.
- Built-in testing discipline: Targeted checks cover the endpoints that usually fail during updates, so issues get caught before they turn into hotfixes and delays.
- Practical security habits: Secure defaults (auth boundaries, validation, safe errors) reduce incident risk and protect sensitive data in day-to-day operations.
- Integration-friendly collaboration: Ownership stays clear, changes stay visible, and risks get flagged early, which cuts escalations and keeps handoffs moving.
Our Services
Here are the most common API responsibilities clients delegate to KPS dedicated API developers. This helps teams align on deliverables, interface boundaries, and release safety before work starts.
- API design & contract setup: Define endpoints, schemas, and response rules using API first design practices, so teams agree on interfaces before implementation.
- REST API development: Build and maintain services where a rest API developer follows consistent patterns for pagination, error handling, and versioning.
- GraphQL API development: Design schemas and resolvers that support predictable data retrieval, without over-fetching or unstable query behavior.
- WebSocket & real-time APIs: Implement real-time updates where data flow needs to be pushed, not polled, while keeping existing clients stable.
- API integration with third-party systems: Connect external tools and internal services without breaking company data flows when dependencies change.
- Authentication and authorization: Set up access rules and token handling with a solid understanding of auth boundaries and least-privilege defaults.
- API testing and release safety: Add checks that reduce regressions and protect delivery, using the right key skills for test coverage and release gates.
- API security hardening: Protect sensitive data with rate limiting, input validation, and secure defaults aligned with your operational risk level.
Additional Services
APIs rarely live in isolation. KPS can complement API delivery with web development and app development engineers, plus QA or DevOps support when releases depend on coordinated client changes, test coverage, or deployment pipelines.
Hire by role:
- Full Stack Developers
- Frontend Developers
- Backend Developers
- Mobile App Developers
- Web Developers
- iOS Developers
- Android Developers
- DevOps Engineers
- QA Engineers
- UI/UX Designers
- Remote Developers
- Data Scientists
- Data Engineers
- Data Analysts
- Machine Learning Developers
- Fintech Software Developers
- E-commerce Developers
and many other
Hire by technology:
- React.js Developers
- Node.js Developers
- Python Developers
- PHP Developers
- Java Developers -.NET Developers
- Angular Developers
- Vue.js Developers
- Shopify Developers
- WordPress Developers
- Laravel Developers
- Django Developers
- React Native Developers
- Flutter Developers
- Kotlin Developers
- Swift Developers
- AWS Developers
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- JavaScript Developers
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- Golang Developers
- Ionic Developers
- AI Developers
- Blockchain Developers
- Magento Developers
- Drupal Developers
- ASP.NET Developers
- Salesforce Developers
and many other
Contact Us
Is there anything you'd like to discuss personally? Just reach out to our team on LinkedIn - we'll help you hire top API developers.
- Klim Trakht
- Daria Parshina
- Recruiting Director
- Ilona Turchak
- Recruiter
- Maria Bielovolova
- Recruiter
Or simply leave a request here, and we'll get in touch at the time that works best for you.
Did we leave some questions about how to hire API developers unanswered?
- What are the benefits for me of outsourcing API development?
- How much will it cost me to hire API developers?
- Why is the demand for strong API developers growing?
- How do I hire the right API developer without wasting time on mismatches?
- Which type of API development do I need for my product: REST, GraphQL, or something else?
Schedule a call to get your questions answered.