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AI Engineering · Shipping Software Since 2008

AI Engineering Depth at Start Up Speed

Wherever you are, from idea to live system, we build the AI, run it, ship the software around it and grow your team.

Not sure where to start? Spend 90 minutes with a senior engineer and a solution architect, Free.

Our Technology PartnersAnthropicGoogle CloudAWS

  • 18+years building software
  • 180+engineers
  • 700+products delivered
  • 95%of clients stay with us

Teams We've Built For

  • Valcre

Everything Between an AI Idea and a Team That Runs It

Our four practices cover AI engineering, the platforms underneath it, the software around it and the people who carry it forward.

  1. Build

    AI Engineering

    Explore AI Engineering
  2. Run

    AI Platforms & Infrastructure

    Explore AI Platforms & Infrastructure
  3. Core

    Software Engineering

    Explore Software Engineering
  4. Scale

    Talent, Enablement & Advisory

    Explore Talent, Enablement & Advisory

All of our engineers already build with Claude Code and Cursor every day, so the practices we teach come from our own work.

The methodology we sell is the one we use on ourselves.

Why BigStep

Senior engineers, real accountability, and software that ships.

Founded in 2008. 180+ engineers who stay on your project from first call to production.

  • Named senior engineers

    The people you meet are the people who build.

  • Your repo from day one

    Code in your repository from the first commit.

  • Working software in weeks

    A first working version within one to two weeks.

  • You own what we build

    Everything handed over, with documentation.

Real Stories

If you’re wondering whether we’ve built something like what you need, start here. These are six recent projects, with what we built for each.

See What You Get and What It Costs Up Before You Sign

If you've ever tried to compare AI vendors without a single price to go on, this is the other way round. Each programme has a set duration, a published price and a defined deliverable.

  1. Agent Reliability Scorecard

    AI Engineering · Quality & EvalsFree60 minutes

    A scored assessment of a live AI or agent deployment, with named and ranked gaps

  2. AI Reliability Audit

    AI Engineering · Quality & Evals$18K–$30K2 weeks

    A scored reliability report on a live AI system with a prioritised remediation plan

  3. AI Feature Sprint

    AI Engineering · Product Engineering$20K–$35K3 weeks

    One AI feature live in production with monitoring and cost controls

  4. Agent Prototype Sprint

    AI Engineering · Agents$25K–$45K2–3 weeks

    A working agent prototype in staging, with architecture docs and an evaluation baseline

  5. Eval Harness Sprint

    AI Engineering · Quality & Evals$35K–$55K4 weeks

    A working eval harness in your CI with baseline scores for every tracked metric

Tell us what you’re trying to get done.

Bring the problem, the prototype or the half-built feature. We will tell you, plainly, what it takes.

  1. Book a time
  2. Meet a senior engineer and a solution architect
  3. Leave with three prioritised opportunities in writing

90 minutes · Free · No salespeople