Back-end services
Back-end Services and Server System Development
We build simple and complex server systems on NestJS for web apps, SaaS, and enterprise platforms: APIs, integrations, microservices. We document APIs and prepare infrastructure for growth.
Who we help and what we solve
Ideal for teams that need a stable back‑end, fast product growth, and predictable quality.
You need back-end services for a product or SaaS platform.
You need APIs for mobile apps and web clients.
You need CRM/ERP/payment integrations and process automation.
You face load spikes and need scaling, queues, caching, resilience.
You want to split a monolith into microservices and improve architecture.
You need support and development of an existing server system.
What’s included
Full cycle of server‑side development — from analysis to support.
Requirements analysis and architecture design.
API and business logic development with NestJS.
Integrations with databases, external services, and payments.
Queues, caching, and background jobs.
Security, authorization, roles, and logging.
Testing, CI/CD, and monitoring.
Documentation, launch, and support.
Technology stack
We choose a stack built for security and scale.
NestJS, TypeScript, Node.js.
Databases: PostgreSQL, Redis.
Queues and jobs: BullMQ, Redis Streams.
APIs: REST/GraphQL, OpenAPI/Swagger.
DevOps: Docker, CI/CD, monitoring.
Security: JWT/OAuth, RBAC, auditing.
How we work
A clear process from idea to stable release.
- 01
Briefing and requirements gathering.
- 02
Architecture and data modeling.
- 03
API and business logic development.
- 04
Integrations and infrastructure setup.
- 05
Testing, launch, and monitoring.
- 06
Support and continuous improvement.
FAQ
Short answers to common questions.
How much does back-end development cost?
Cost depends on logic complexity, integrations, and load. We provide an estimate after a short briefing.
Why do you use NestJS?
NestJS provides modularity, stability, and fast development with TypeScript.
Do you provide API documentation?
Yes, we deliver Swagger/OpenAPI and technical documentation.
Can you improve an existing back‑end?
Yes, we run an audit and propose a clear improvement plan.
Who owns the source code?
Rights and source code are transferred to the client under the contract.
Ready to discuss a back-end service?
Tell us about the task — we’ll prepare an estimate and propose the right architecture.
Vitebsk, Republic of Belarus
+375 (44) 511-32-58
info@webapp.by