Backend and APIs

Backend, APIs and integrations

Scalable backend services in Node.js and Go — REST, GraphQL, event-driven. Postgres, Redis, Kafka. AWS, GCP, Azure with infrastructure as code.

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What we actually do

Scalable backend services — REST, GraphQL, event-driven.

We build scalable backend services in Node.js (NestJS, Fastify) and Go — REST APIs, GraphQL, gRPC and event-driven architectures (Kafka, RabbitMQ, SQS). We design databases in Postgres, MongoDB and Redis, with care for migrations, indexes and query performance. We deploy microservices and modular monoliths depending on need — on AWS, GCP and Azure, with infrastructure as code (Terraform, Pulumi). We handle integrations with external systems: ERP, CRM, data warehouses, payment systems and SMS gateways.

> What's included

  • Node.js, NestJS, Go
  • REST, GraphQL, gRPC, event-driven
  • PostgreSQL, MongoDB, Redis
  • Microservices and modular monoliths
  • AWS, GCP, Azure, Terraform
  • ERP, CRM, payment integrations
Node.jsNestJSGoPostgreSQLRedisKafkaAWSTerraform
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Which architecture should we pick?

Three real paths — modular monolith, microservices or event-driven. We help pick the one that fits your scale, team and budget, not the fashionable preset.

// 01

API + modular monolith

Node.js / NestJS / Postgres

A single deployable backend serving one app or product. REST or GraphQL, Postgres as the data backbone, Redis for cache. Fastest path to production, easy onboarding, low ops cost. The modular code layout allows later evolution toward microservices — no rewrite required.

Best for

MVP, single product, small team

// 02

Microservices and distributed

Node.js / Go / gRPC / Kubernetes

Architecture for teams that need to deploy independently and serve multiple products on a single backend. Service mesh, observability (OpenTelemetry, Prometheus, Grafana), API contracts, distributed tracing. Higher ops cost — but scale and team independence are sometimes a necessity, not an aesthetic choice.

Best for

Multi-product, large team, independent deploys

// 03

Event-driven and streaming

Kafka / RabbitMQ / Temporal / SQS

Systems built around event streams — external system integrations, task queues, real-time data pipelines. Kafka or RabbitMQ as the backbone, Temporal for workflow orchestration, idempotent handlers, dead letter queues, retry policies. A great fit where REST APIs fall short.

Best for

Real-time, integrations, async processing