Custom Software Development
Greenfield platforms, internal tools, and complex domain systems.
GRAPE & BERRY LIMITED is an independent IT engineering studio. We design software, cloud platforms, and security programmes that hold up at 3 a.m. on a holiday weekend.

> build ✓ 12.4s > tests ✓ 1,284 > ship ✓ eu-west-2

We're a tight, opinionated team that takes the long view. Every engagement is staffed with experienced engineers who write code, run incident reviews, and stay accountable for the systems they ship.
We pick boring, proven tools by default — and reach for the new ones only when they earn their keep.
We work across the lifecycle — discovery, design, build, operate — so the system you launch is the same one we stay accountable for.
Greenfield platforms, internal tools, and complex domain systems.
Marketing sites, dashboards, and high-performance web apps.
Multi-cloud architecture, migration, and cost-aware platform design.
Tech strategy, architecture reviews, and modernisation roadmaps.
Threat modelling, hardening, incident response, and compliance.
CI/CD, observability, IaC, and 24/7 platform operations.
Research-led product design and interface systems.
SLA-backed maintenance, on-call rotations, and triage.
Cross-sector engineering
Ledgers, settlement systems, KYC/AML pipelines.
HIPAA-aware platforms, clinical workflows, devices.
Multi-tenant infrastructure, billing, telemetry.
Route optimisation, fleet, warehouse automation.
Streaming, content pipelines, recommendation.
Edge compute, time-series data, telemetry meshes.
We run in tight feedback cycles so the work compounds. Every increment ships behind feature flags and instrumented from the start.

Stakeholder interviews, system audit, risk mapping. We arrive curious, not prescriptive.
Architecture diagrams, threat models, and lightweight prototypes before any production code.
Two-week increments. Trunk-based development, code review, full CI from commit one.
Observability, runbooks, on-call rotations. We stay on the pager with your team.
Every line of code is written by someone who has been on call before.
You own the repo, the infra, the documentation, the runbooks.
We scope work around measurable outcomes — not seat counts.
Postgres before NoSQL. Monoliths before microservices. Until they need to grow.
Threat modelling and dependency hygiene start in week one.
Engagements end with documented systems your team can operate alone.
We hire slowly and stay together. Most of our team have led platforms at companies you've heard of — and chose to do their best work in a smaller, sharper studio.
A regulated fintech client needed to migrate a 9-year-old ledger handling 1.4 billion daily entries onto a new event-sourced architecture — with zero customer-visible downtime and no data loss.
They embedded with our engineers, owned the hardest part of the migration, and handed it back with a runbook our junior on-call could follow. Rare.
We treat security and operability as first-class product concerns. Hardening, observability, and recovery paths are built in from day one, not bolted on before launch.

We respond to every serious enquiry within one working day. Tell us what you're building and where it hurts — we'll write back with the engineers who can help.