Services

Services

Five ways to work together, from a one-off review to a long-term contract. Each one builds a different part of the same column. End to end, from the data model to the interface, one owner. No price list: every engagement starts with a call.

I.

Architecture review

Part I · Fundamentum: the foundation and the measured plan

For teams whose backend has outgrown its first design. A review of services, data flows and boundaries, ending in a written plan: what to keep, what to change, and in what order.

You get

  • A map of services, data flows and boundaries as they are today
  • Risks ranked by what they cost you, not by how they look
  • A written plan: keep, change, and in which order
  • Review
  • Written plan
II.

Backend & data engineering

Part II · Scapus: the load-bearing drums

Node.js and TypeScript services (NestJS, Express, tRPC, GraphQL), PostgreSQL, and serverless on AWS: Lambda, SQS, DynamoDB, Athena. Proven on hundreds of terabytes in S3 and Parquet.

You get

  • Services and APIs that the next team can read
  • Data models and jobs that survive the next order of magnitude
  • Query cost and run time measured, before and after
  • Node.js
  • TypeScript
  • PostgreSQL
  • AWS Lambda
  • SQS
  • DynamoDB
  • Athena
III.

AI & LLM pipelines

Part III · Capitulum: the capital, with the core inside

From prototype to production: transcripts in, structured output out. Prompt design, multi-modal processing and caching, plus no-code tools so non-engineers can define what the pipelines produce. Since 2024 in UK financial advice.

You get

  • A pipeline running on real, messy input
  • Evals, so every prompt or model change is measured
  • A person signs off before output becomes a decision
  • RAG
  • Context engineering
  • Evals
  • Caching
IV.

Product & UI/UX design

Part IV · Ornamenta: what people see and touch

For products where the interface and the system behind it should come from one hand: user flows, UI and a design system, designed together with the data model, so the screens match what the backend can actually do.

You get

  • User flows and screens, tested on the real data model
  • A design system in code, not only in a design file
  • Screens that never promise what the backend can’t do
  • Flows
  • UI
  • Design systems
V.

Senior engineer on contract

Part V · Machina: the crane, the one who builds it

A senior full-stack engineer embedded in your team, long-term or for a fixed scope. React on the front end when the product needs it. Invoiced by PaxCode, an EU VAT-registered company.

You get

  • A senior engineer in your stand-ups and your repo
  • Decisions written down as they are made
  • B2B invoicing from an EU VAT-registered company
  • Long-term
  • Fixed scope
  • B2B

How an engagement starts

Three steps, no surprises.

  1. 01

    A call

    30 minutes about your system: what you’re building and where it hurts.

  2. 02

    A written scope

    What gets done, in what order, and in which form: review, fixed scope or contract.

  3. 03

    The work

    Decisions written down as they are made. Invoiced by PaxCode.

Contact

Not sure which fits?

Book a call Write to hello@paxcode.it