FinTech scale-up
Legacy platform rebuild
Replaced a 12-year-old monolith with a modern event-driven architecture, cutting release cycles from months to hours.
- 80% faster releases
- 99.99% uptime
- £2.1M annual savings
Software engineering consultants
We fix, build, and modernise technology that powers your business.
Overhaul Software is a team of senior developers and cloud engineers. We specialise in legacy rebuilds, AWS/Azure infrastructure, data migration, AI integration, and security-first delivery.
What we do
End-to-end engineering expertise
From greenfield products to rescue missions, we bring the skills needed to deliver production-grade outcomes.
Software Engineering
Full-stack teams that design, build, and ship reliable software your business can depend on.
- React
- Node.js
- Go
- Python
- TypeScript
Cloud Infrastructure
Production-grade AWS and Azure environments, infrastructure as code, and cost-optimised operations.
- AWS
- Azure
- Terraform
- Kubernetes
- CI/CD
Data Migration
Secure, auditable migrations that move your data without downtime, corruption, or surprises.
- PostgreSQL
- MongoDB
- ETL
- Zero Downtime
- Compliance
Legacy Rebuilds
We untangle monoliths, refactor critical systems, and replace them incrementally without breaking the business.
- Monolith Refactoring
- API Design
- Strangler Pattern
- Testing
AI Integration
Practical AI and automation embedded into your products and workflows — not slide-deck promises.
- LLMs
- RAG
- Automation
- Vector DBs
- Model Fine-tuning
Security First
Security baked into architecture, code review, and delivery from day one, not bolted on at the end.
- SOC 2
- Pen Testing
- IAM
- Audit Logging
- Compliance
Proven results
Previous success stories
Real projects, real outcomes. See how we have helped teams modernise, migrate, and scale.
Enterprise retailer
Multi-cloud migration
Migrated 400+ workloads to AWS and Azure with zero customer-facing downtime and full compliance audit trail.
- Zero downtime
- 40% cost reduction
- SOC 2 certified
SaaS platform
AI customer insights
Built an LLM-powered analytics pipeline that turns unstructured customer feedback into actionable product signals.
- 60% faster insight gathering
- 3x feature adoption
- 24h implementation
Interactive Assessment
How much of your business could be easier?
Tell us what actually happens in your business. We'll translate that into the technology problems we can help solve.
Question 1 of 10
About 2 minutes
Here's what we found
Talk to us about itSoftware Health Check
Is your old software holding you back?
Answer honestly about how your systems behave and we'll help you work out whether your old software is actually becoming a problem.
Question 1 of 10
About 2 minutes
Your software health check
Talk to us about itReady to overhaul your technology?
Tell us what is broken, slow, or holding you back. We will respond within one business day.