Case studies
Real engagements.
Measurable outcomes.
We embed in engineering teams, fix hard problems, and leave the infrastructure better than we found it. Here's what that looks like in practice.
Anystack Engineering was incorporated in May 2024. Engagements shown from before that date were delivered by the founder — directly or as a specialist delivery partner inside larger consultancy programmes — and represent the delivery track record behind Anystack’s methods.
Shipping Weekly Instead of Monthly: Delivery Transformation at a UK Mobile Operator
A UK mobile network operator needed a team to own the full delivery lifecycle — dev, test, BA, and production — while working alongside a separate API team. Monthly releases became weekly ones.
- Monthly releases became weekly — a 4× improvement in release cadence with no increase in headcount.
- Production bug rate dropped materially. Every feature was validated against mocks before it touched a live environment.
The Unglamorous Work That Keeps a Product Moving: A Data-Platform Delivery Programme
Not every engagement is a dramatic transformation. A Big Four professional-services firm needed a reliable engineering team to keep a data-platform module healthy and ensure product decisions were grounded in data they could actually trust.
- Product teams had a module they could rely on — data was accurate, timely, and structured for decision-making, not just reporting.
- Technical debt was addressed continuously rather than deferred until a forced rewrite.
Modernising a UK Retailer's Rewards Platform: Frontend, Infrastructure, and Everything in Between
A long-running programme for a major UK omnichannel retailer (two consumer brands) — spanning Next.js migration, GCP infrastructure, third-party dependency removal, microfrontend architecture, and CI/CD modernisation.
- Next.js PDP migration complete — frontend changes are faster, safer, and owned by the team rather than feared.
- Membership module live on GCP — scalable, observable, and free from on-site hardware constraints.
QA Stack Modernisation for a Global Vehicle-Rental Company
Transformed legacy QA processes with Serenity BDD and ReportPortal integration for a global vehicle-rental company, improving reporting efficiency by 45%.
- 45% faster regression triage after every nightly run.
- Shared dashboard for 5 business units with a single green/red signal.
Erlang Backend Rewrite for Bulk SMS Provider
Rewrote the messaging backend in Erlang, optimizing performance and cutting cloud costs by 30%.
- 3× throughput headroom during carrier promotions.
- 30% reduction in monthly compute spend thanks to right-sized nodes.
Automation of Patient Portals
Implemented end-to-end test automation for patient portals, ensuring compliance and improving release velocity.
- Cut UAT cycle time from 15 days to 5 days.
- Automated evidence packs for auditors with zero redactions.