Software Engineering · UK
Most of software engineering
is now automatable.
Faster, higher standards, and more affordable than the industry has come to expect.
2–4 weeks
Production-grade deliverables, not demos.
Fixed price
We carry the risk, not you.
Money back
We stand behind every engagement.
What We Do
Two ways to work with us. Fixed-price delivery or flexible advisory. No timesheets, no surprises, no lock-in.
Fixed Price Delivery
Discovery, prototypes, MVP builds, legacy migration, AI agents, due diligence, and security assessments — scoped, quoted, and delivered in weeks. Money-back guarantee.
Fractional CTO
Senior technology and security leadership on a flexible monthly retainer. CTO-level guidance without the full-time hire.
Track Record
Technology leadership across payments, energy, cybersecurity, and capital markets.
Earthport
PaymentsGrew a 5-person startup into a £17Bn payments utility serving the world’s largest banks — acquired by Visa.
Moneycorp
Foreign ExchangeRe-architected a £24Bn payments platform. 200% volume growth, 900% payments EBITDA growth, doubled customer conversion.
Spark / Ovo
EnergyTransformed a legacy energy provider into a digital-first operation — 300%+ digital growth, then led the technology integration when Ovo acquired.
Euroclear
Capital MarketsProgramme delivery across core clearing and settlement systems processing over a quadrillion dollars annually.
Multiple PE / VC Funds
Due DiligenceTechnology due diligence across multiple private equity and venture capital investments — assessing architecture, team capability, and technical debt.
Cynergy Bank
BankingData management and GDPR compliance programme for a digital challenger bank — legacy-to-modern data architecture.
Why Mangrove
20 years building software.
Now radically transformed.
We've held the CTO and CIO roles — we know what good delivery looks like from the inside. That experience, combined with AI-native tooling, means we deliver faster and to a higher standard than you'd expect from a single engagement partner.
Background
20+ years as CTO and CIO across financial services, cybersecurity, and technology. Founded a ransomware response startup. Built and shipped production systems at every scale from seed-stage to enterprise.
Sectors
Have a project in mind?
Send us your spec and we'll come back with a fixed-price proposal. No obligation, no timesheets.