Your production problem. Our factory.

Greenfield Labs delivers production microservices for engineering teams that need results, not headcount. We architect, build, test, and hand off — on your timeline, at a fraction of the cost.

Schedule a Technical Assessment

Your legacy code is the bottleneck.

Every organization wants to move faster with AI. The models are ready. The tooling is ready. But your codebase isn't. The monolith that was supposed to be temporary, the prototype that was never replaced, the quick fix from three years ago that's now load-bearing infrastructure — none of it was built for AI to work with.

AI agents need clear service boundaries, typed contracts, and isolated domains to be effective. They can't reason about a tangled monolith any better than your team can. Tech debt confuses your engineers. It makes your AI agents hallucinate.

So the organizations seeing real gains from AI aren't the ones with the best prompts. They're the ones that modernized their architecture and methodology first. The rest are stuck waiting for a smarter model to save them from a codebase that was never designed for this.

We build the foundation that's ready for today's agents and whatever comes next.

The Process

A factory, not a staffing agency.

We do not send you bodies and hope for the best. We run a structured manufacturing process with defined inputs, quality gates, and deliverables at every stage.

Week 1

Discovery

Week 1

We assess your codebase, decompose your domain, and produce an architecture blueprint with typed service contracts. You review and approve the blueprint before any code is written. No surprises.

  • Codebase assessment
  • Domain decomposition
  • Architecture blueprint
  • Typed service contracts
Weeks 2-3

Build

Weeks 2-3

Production microservices are constructed against the approved blueprint. Every service passes automated quality gates: typed contracts, two-layer authorization, 90%+ test coverage, distributed tracing. You have visibility into progress throughout.

  • Production microservices
  • Quality gate verification
  • Typed contracts
  • Authorization layers
Weeks 3-4

Iterate and Deliver

Weeks 3-4

Integration verification, performance validation, and complete documentation handoff. Your team receives production-ready services, architecture docs, deployment configurations, and a walkthrough of every component. You own everything.

  • Integration verification
  • Performance validation
  • Complete documentation
  • Deployment configurations
Deliverables

We build working systems, not slide decks.

Architecture Documentation

Complete domain decomposition, service boundaries, data flow diagrams, and deployment topology. Not a PowerPoint. An executable blueprint.

Production TypeScript Microservices

CQRS with event sourcing, zero infrastructure code, full handler implementations for every command, query, and event in the domain.

Type-Safe Service Contracts

Every service declares typed input/output contracts validated at compile time. No magic strings. No runtime integration failures.

Two-Layer Authorization

Permission-based access control at the API gateway. Business-rule policy enforcement inside every handler. Every request passes through both layers.

Comprehensive Test Suites

90%+ test coverage enforced on every service. Unit tests, integration tests, and contract validation tests. Coverage is not a goal — it is a gate.

Distributed Tracing and Observability

OpenTelemetry instrumentation, Jaeger tracing, Prometheus metrics, Grafana dashboards. You see every request, every event, every failure.

Deployment-Ready Containers

Docker configurations, infrastructure as code, and deployment documentation. Ready for your CI/CD pipeline.

Results

Measured. Not estimated.

A fraction of a single hire
A full engagement costs less than one senior engineer's annual loaded compensation. You get an entire production system, not one person's partial attention.
3 weeks to production
From codebase handoff to production-ready microservices. Not a proposal timeline. A measured result from a real engagement.
90%+ coverage enforced
Not a target. A gate. Every service must pass 90%+ branch, function, line, and statement coverage before it ships. No exceptions. No waivers.
Zero time wasted on infrastructure code
Your services contain only domain logic. Messaging, persistence, caching, tracing, and monitoring are handled by the platform.
FAQ

Questions we hear in every first call.

Do we own the code?
Yes. Everything we build is yours -- source code, architecture documentation, deployment configurations, test suites. We do not retain licenses, proprietary dependencies, or lock-in mechanisms. You own the IP completely.
How do you handle security and access control?
Every service ships with two-layer authorization. Layer 1 enforces permission-based access at the API gateway -- who can call what. Layer 2 enforces business-rule policies inside each handler -- what the data allows. Both layers are tested and documented. We can also work within your existing IAM and compliance frameworks.
What does our team need to provide?
Access to the existing codebase, a domain expert for the discovery phase (typically 4-6 hours of their time in week one), and a technical lead for blueprint review and approval. We handle everything else.
How do you integrate with our existing systems?
The architecture uses typed service contracts and message-based communication via RabbitMQ. Integration with existing APIs, databases, and third-party services is defined during the discovery phase and built into the service contracts. No hard-coded dependencies.
What if our requirements change during the engagement?
The blueprint review at the end of week one exists for exactly this reason. We define scope together before code is written. Changes after blueprint approval are scoped as additional work with transparent timelines and costs. No ambiguity.
Do you provide ongoing support after delivery?
We offer post-delivery support packages, but the goal is full handoff. Your team receives complete documentation, architecture walkthroughs, and deployment guides. The code is written to standard patterns your engineers can read, maintain, and extend without us.
What technology stack do you use?
TypeScript with strict mode. Node.js 20 runtime. CQRS with event sourcing for domain modeling. RabbitMQ for messaging, PostgreSQL for persistence, Redis for caching. OpenTelemetry for distributed tracing. Docker for deployment. Every choice is intentional and battle-tested.

Stop hiring for infrastructure. Start manufacturing software.

We will assess your codebase and tell you exactly what production looks like. No commitment. No sales deck. Just a technical conversation.

Schedule a Technical Assessment