Backend Development: Java Spring Boot · Node.js
Backend development services.
The engine room of your product: APIs, databases, integrations, and automation. Java with Spring Boot when you need enterprise structure and long-term maintainability, Node.js with TypeScript when you need to ship fast. Documented well enough to hand to another team.
What we deliver
Systems built to stay boring.
API development
REST and GraphQL APIs designed around your product, documented and versioned. Spring Boot where you need enterprise structure, Node.js where you need to move fast.
Third-party integrations
REST and GraphQL clients, webhooks for events that cannot wait for a poll, OAuth where the tool owns the login, and scheduled sync with retries and a dead-letter queue for the runs that fail.
Database design
PostgreSQL and MySQL schemas modeled around your real workflows, indexed against the queries you actually run, and safe to migrate. JPA and Hibernate mappings that do not fight the database.
Auth & user management
Login, roles, permissions, and multi-tenant access done right with Spring Security or Node equivalents: the part of the system where mistakes are most expensive.
Workflow automation
The reports, syncs, reminders, and handoffs your team does by hand today, running automatically, with logs you can trust.
Deployment & operations
Maven or Gradle builds, containerised deploys, CI/CD pipelines, monitoring, and backups on your cloud of choice. Restores get rehearsed, because a backup nobody has restored from is a guess.
Our stack
How it works
From first call to launch.
Discover
A free discovery call about your business, your goals, and what needs to be built. You get a concrete scope and a fixed quote.
Design
Structure, interfaces, and technical approach you review and approve before a line of production code is written.
Build
Built in short sprints you can see: working software every week, tested as it grows, no black-box development.
Launch & support
We deploy it and set up monitoring, then hand over. After launch we stay available for changes and new features.
Published work
The backend we can show you.
A connected health platform, built for Seniorsoft, is written up in full: device telemetry through a telematics gateway, events classified into the types that change what happens next, an operator console where every escalation step is timestamped, a device registry, password and mobile-OTP authentication, and ERP integration so billing follows delivered service. One case study rather than a list, because it is the one we can walk you through end to end.
Read the Case StudiesFAQ
Common questions
Everything behind the interface: APIs, databases, authentication, integrations with other tools, background jobs, and the infrastructure it all runs on. If the frontend is what users see, the backend is what makes it true.
It depends on the system, and we will tell you which we think fits rather than defaulting to whichever we prefer. Spring Boot earns its keep where the domain is complex and long-lived: strong typing across a large codebase, mature transaction handling, a deep library ecosystem, and a hiring pool that will still exist in ten years. Node.js with TypeScript wins where you are moving fast, sharing types and people between frontend and backend, or building something event-driven and I/O-heavy. If you already run one of them, that is usually the answer, because a team that can maintain the result matters more than the framework.
Yes. That includes older Spring, Struts, or plain J2EE applications that still run the business. We start with an audit, add tests around the paths that matter, then upgrade or extend incrementally. Where a full move to current Spring Boot makes sense, it is done in slices rather than a rewrite. See our legacy modernization page for how that works.
Yes. We design and build APIs that expose your existing data safely, whether that means adding an API layer to a legacy system or building a clean integration surface for partners and mobile apps.
Any tool with a documented API. The work is the same shape each time: read the docs, model the data on our side, then connect over REST or GraphQL, webhooks, or a scheduled sync depending on what the tool exposes and how fresh the data has to be. Send us the API documentation for the system you need connected and we will tell you on the call what it will take, rather than promising it beforehand.
Least-privilege access, encrypted data in transit and at rest, dependency auditing, and careful handling of secrets and personal data. Auth and permissions are designed first, not bolted on.
We design for the scale you realistically need next, not hypothetical millions, which keeps costs sane. The architecture leaves clear upgrade paths: proper database indexing, stateless services, and caching where it counts.
Yes. We start with a code and infrastructure audit, stabilize whatever is fragile, document what we find, and then improve incrementally, with no risky big-bang rewrites of systems your business depends on.
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