Engineers who understand your business, not just your stack.
Boutique software, data & AI engineering. You work directly with senior engineers — no account managers, no handoffs.
Four areas. One team.
Software Development
Full-stack applications, APIs and internal tools — built to ship and handed over with documentation.
Explore →AI & Machine Learning
Practical AI: agents, automation and ML pipelines that solve real business problems, not demos.
Explore →Cloud & Data Engineering
Scalable infrastructure, data pipelines and analytics platforms on AWS.
Explore →Technical Advisory
Fractional CTO, technical due diligence, architecture review — senior engineering judgment without a full-time hire.
Explore →Interactive cruise tracking, built for 100,000+ users.
The Cruise Globe lets users relive and share their voyages on an interactive 3D globe. Built end-to-end — data ingestion, API, polished web app — in under six months.
Read the case study →
You work directly with us and our experts
Callum
Engineering Leader
15 years in software, 10 in commercial engineering leadership. MSc Software Engineering. VP of Engineering & Data at Perlego. Makes the architectural calls, sets technical direction and helps clients build and scale their engineering organisations.
Orsi Hubbarde
Full Stack Engineer & Project Lead
Built the engineering behind hundreds of thousands of cruise voyages on The Cruise Globe — React, Python, APIs, databases, end to end. BSc Computer Science. Leads the work, coordinates delivery and writes the code.
“Tech Relays took a genuinely collaborative approach to understanding our business and built a highly flexible system that could support it.”
Latest thinking
Software Development
Federated GraphQL — Disaggregating an Aggregator
A deep dive into federated GraphQL and how it can be used to break apart a monolithic aggregation layer — with real trade-offs, not just theory.
Software Development
Getting the Most Out of Mapbox GL JS Performance
WebGL internals, frame-time measurement, and the layer anti-pattern that makes maps feel slow. A practical guide to Mapbox GL JS v3 performance.
Technical Advisory
Technical Due Diligence: What Investors Actually Check
We've been through it from both sides. Here's what a real technical due diligence process looks at, and how to prepare your codebase and architecture.
Ready to build something?
Tell us about your project and we'll come back to you within 24 hours.
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