Hire Full-Stack Developers — End-to-End Engineering

A Kultrix full-stack developer owns the full vertical slice of a feature: the database schema, the backend API endpoint, the frontend component, and the tests covering all layers. They do not require a separate frontend or backend developer to pick up either end. This dramatically reduces handoff delays and integration bugs.

Standard start time is 48 hours from contract signing. Full-stack developers with specific expertise (e.g., SaaS billing, realtime features, or a specific framework) may take up to one week to source from our bench.

For MVPs, internal tools, and features added to an existing product, a single skilled full-stack developer often delivers faster than a larger team with coordination overhead. For products requiring simultaneous work across multiple areas, we staff a small team — typically two to three developers with complementary strengths.

Our primary full-stack combination is React + Next.js on the frontend, Node.js with TypeScript on the backend, and PostgreSQL with Prisma for data. This stack covers the vast majority of web product requirements. We also work with Python (Django/FastAPI) backends and Vue.js or Svelte frontends when the project calls for it.

Yes. Kultrix full-stack developers have built complete SaaS products — including authentication (magic link, OAuth, SSO), subscription billing with Stripe, role-based access control, email notifications, admin dashboards, and public APIs. We have proven boilerplates and patterns that accelerate SaaS development without cutting corners.

Full-stack does not mean equally expert in all areas. Our developers have a primary strength — typically frontend or backend — and strong working competency in the other. For projects where one side dominates (e.g., a complex React dashboard backed by a simple API), we match the developer whose primary strength aligns with the heaviest work.

Yes. Database design is a core responsibility. Our developers model relational schemas in PostgreSQL, design for the application's actual query patterns, write and manage migrations safely, and optimise indexes for production performance. They do not treat the database as someone else's concern.

Yes. Third-party integrations are a routine part of full-stack development. Our developers have integrated Stripe, Twilio, SendGrid, AWS S3, Auth0, HubSpot, Salesforce, and dozens of other services. They handle the API client, webhook processing, error handling, and any data mapping required.

Our developers write unit tests for business logic, API integration tests with Supertest, and component tests with React Testing Library. For critical user flows (signup, checkout, onboarding), they write end-to-end tests with Playwright. All tests run in CI on every pull request.

Yes. Full ownership includes deployment. Our developers configure CI/CD pipelines with GitHub Actions, containerise with Docker, and deploy to Vercel, Railway, AWS, or Fly.io. They configure environment variables, health checks, and monitoring so the system is observable from day one.

The minimum engagement is one month. This provides enough time for a developer to onboard, understand the codebase, and make a meaningful contribution. Most clients extend after the first month, and long-running product engagements of six to twelve months are common.

Monthly retainer engagements lock in a fixed developer allocation at a fixed monthly fee — ideal for ongoing product development. Time-and-materials engagements are billed weekly against tracked hours — better for projects with variable scope. Both include a dedicated account manager and transparent reporting.