Node.js backends that carry the load.

Node.js and NestJS APIs and services are the backbone behind most of what we ship — engineered for scale, reliability, and the kind of clean architecture that's still maintainable years later.

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What we build

The backend, engineered to scale.

APIs & services

Clean, well-architected REST and real-time APIs built on NestJS.

Scalable architecture

Services designed to scale horizontally to millions of users.

Integrations

Payments, messaging, third-party systems — wired in reliably.

Maintainable by design

Architecture that the same team can still evolve years later.

Proof

Node.js powering production.

2M+ propertiesKenloEnterprise ERP backend at national scale.View case study →65 countriesHelixReconciliation and rewards backend for financial institutions.View case study →1.5M usersChargedUpBackend behind a national power-bank network.View case study →

How we build it

AI-native delivery, governed by architects.

01DiscoveryAI-augmented scoping with senior architects

02ArchitectureSystem design + security, governed

03BuildAI pair-programming, every commit reviewed

04QA gateAutomated testing + expert review

05OperateMonitoring, iteration, continuous delivery

The same five-step delivery model behind every Wegile build. Not an AI wrapper — a production AI team.

Under the hood

Built for scale.

Node.jsNestJSScalable APIsReactJSPostgreSQL · AWSAWS LambdaAPI GatewayRedis

Node.js and NestJS backends engineered for scale, reliability, and long-term maintainability.

Questions Node.js buyers ask us

Before you start. Straight answers.

Node.js or Python — how do you choose?

Node.js for API-heavy, real-time, and high-concurrency products — it handles many simultaneous connections efficiently. Python when the workload is data-heavy, AI/ML, or needs the scientific ecosystem. Most of our production systems use Node.js for the API layer and Python for AI workloads — they coexist cleanly.

Microservices or monolith — how do you approach it?

We start with what the product needs. A well-structured Node.js monolith is easier to ship, test, and maintain at early scale. We extract services when there are clear reasons — independent scaling needs, team topology, domain boundaries. Strangler-fig patterns, incrementally.

Do you build new backends or modernize existing Node.js systems?

Both. New NestJS backends from scratch and modernization of existing Node.js codebases — dependency upgrades, architecture refactoring, performance work, and test coverage improvement.

Can you add AI features to an existing Node.js backend?

Yes. LLM integration, RAG pipelines, and agent workflows can be added to existing Node.js backends cleanly. The six-gate governance pipeline applies.

How do you ensure the backend handles peak load?

Load testing, horizontal scaling design, Redis caching, read replicas for database load, and AWS Lambda for async workloads. We size for peak, validate in staging, and build in monitoring from day one.

Need a backend that scales? Let's build it right.

Response within 24 hours. After the architecture call, a named pod and day-one plan arrive within 4 business hours.

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