Years on Market
API & Backend Development
Backends that don't break at scale.
Scalable APIs, databases, and backend services with clean architecture, auth, and observability built in.
11+ 1,200+ Successful Projects
23+ Countries Served
11 Industries Served
Key challenges
Where software projects go wrong before the build starts.
Unclear scope
Quotes you can't compare
Estimates arrive without a written scope, so the price moves as soon as work starts.
Slow delivery
Months before anything works
Long build phases with nothing to click, test or show until the very end.
Junior handoffs
The team changes after the sale
Senior people pitch the project and less experienced ones are left to build it.
Lock-in
Software you don't control
Code, hosting and credentials stay with the vendor, so leaving means starting again.
Our approach
Built by the team that scopes it, ships it and hands it over.
Your frontend is only as good as the APIs behind it. We design and build backends that are fast, documented, and safe to extend — REST, GraphQL, webhooks, and background jobs.
Whether you're launching a new product or replacing a brittle legacy layer, we deliver clean architecture your team can trust.
What We Offer
Backends engineered for production.
API Design
REST or GraphQL schemas that match how clients consume data.
Data Layer
PostgreSQL or MongoDB models that stay maintainable.
Integrations
Payments, shipping, CRM, and webhooks wired correctly.
Jobs & Realtime
Queues, schedulers, and WebSockets when you need them.
The difference
How we run every engagement.
Four commitments that define how every DevNexum project runs.
Senior engineers only
Every line written and reviewed by experienced engineers. No junior handoffs.
Written scope first
Scope, timeline and quote agreed in writing before work begins.
You own everything
Code, credentials and IP handed over on delivery. No lock-in.
Direct access
Talk to the engineers building your product, not an account manager.
Case studies
View all case studiesReal work. Real outcomes.
Client projects we've shipped, with the results they delivered.
Process
How we build your API
Architecture Review
We design the data model, auth strategy, and endpoint structure — agreed in writing before build.
Foundation Sprint
Core API layer, database schema, and authentication wired end-to-end.
Integration & Testing
Third-party integrations, automated tests, and a staged environment for your team to review.
Deploy & Handover
Production deployment, API documentation, and 30 days post-launch support.
How to engage
Get in touchThree ways to work together.
- Fixed scope
Project-Based Delivery
A defined outcome scoped, priced and delivered end to end. You know the cost, timeline and deliverables before work begins.
Best for a single, well-defined build
- Ongoing
Embedded Engineering Team
Senior engineers working directly on your product roadmap — sprint by sprint, with full context and continuity.
Best for continuous product development
- Support
Post-Launch Partnership
Ongoing development, maintenance and support after launch. We stay close to the codebase we built.
Best for products already in production
Tech Stack
Tools we use for this service.
Production-grade technology for reliability, security, and maintainability.
- Node.js
- TypeScript
- Python
- PostgreSQL
- Redis
- Prisma
- Docker
- Railway
- AWS
- Datadog
Industries We Focus
View all industriesIndustries we serve with this service.
Product teams that need reliable infrastructure under their UI.
FAQ
Common questions about API & Backend Development
Let's build something useful
Have something worth building?
Tell us what you're building. A senior engineer replies to every inquiry.
Reviewed by a senior engineer, not a sales rep
A written scope and quote, yours to keep
No obligation to work with us afterwards