A senior-only software development company in London.
Architecture-first engineering for London startups, scale-ups, and the agencies that hire them. £8K, 5-day audit + fixed-price build. Two senior engineers on every project. 200+ shipped since 2019.
What is software development company London?
Empyreal Infotech is a London-based software development company that ships custom web apps, mobile apps, SaaS platforms, and AI features for UK startups and scale-ups. Founded in 2019 by Mohit Ramani, the studio operates out of 20-22 Wenlock Road, London N1, plus a delivery team in Rajkot, India. Every project starts with a fixed £8K, 5-day architecture audit; every build ships against a fixed quote with milestone billing and a 30-day walk-away clause. No juniors on production code. Founder-led PR review on every commit that touches the architectural spine. 200+ projects shipped, zero double-charge incidents in production, 96% engineer retention over 7 years.
What you get, every engagement.
Senior-only London studio
Every engineer on your project is a named senior with 5+ years shipping. No juniors on production code, ever. Names appear on your SOW before you sign.
Architecture before code
Every engagement starts with a fixed £8K, 5-day audit — 30-page brief, six ADRs, a 90-day plan, a single fixed quote. No day-rate clock.
London + Rajkot delivery
Founder-led architecture from London, senior delivery pod in Rajkot for engineering scale. Overlapping hours cover 09:00-22:00 UK time.
30-day walk-away, both ways
Every contract carries a mutual 30-day exit clause. IP assigns on commit. Milestone billing 25/25/25/25. You're never more than a quarter ahead of working software.
The software development company London engagement, week by week.
- 01
Email Mohit at mohit@empyrealinfotech.com. Yes / no / one question back inside 24 hours. If we're not the right London software development company for you, we'll say so and refer.
5-line brief. Email Mohit at mohit@empyrealinfotech.com. Yes / no / one question back inside 24 hours. If we're not the right London software development company for you, we'll say so and refer.
- 02
Two senior engineers plus Mohit. 30-page brief, six ADRs, 90-day plan, single fixed quote for the build. Walk away with everything on Monday if you want to shop it.
Audit week. Two senior engineers plus Mohit. 30-page brief, six ADRs, 90-day plan, single fixed quote for the build. Walk away with everything on Monday if you want to shop it.
- 03
Milestone billing 25/25/25/25. Daily written standup. Weekly demo. Every commit through senior PR review. IP assigns on commit.
Build sprint. Milestone billing 25/25/25/25. Daily written standup. Weekly demo. Every commit through senior PR review. IP assigns on commit.
- 04
Architecture brief, ADR library, runbook, DPA, SIG-Lite + CAIQ pre-filled, 30-minute video tour for your next engineer.
Handover pack. Architecture brief, ADR library, runbook, DPA, SIG-Lite + CAIQ pre-filled, 30-minute video tour for your next engineer.
- 05
Weekly architecture review, monthly board-ready health report, senior voice on your calls. Cancellable with 30 days' notice, any month.
Optional advisory retainer. Weekly architecture review, monthly board-ready health report, senior voice on your calls. Cancellable with 30 days' notice, any month.
Questions we get about software development company London, with real answers.
Custom web apps, mobile apps (React Native + Flutter), SaaS platforms, AI features + integrations, API + backend systems, and legacy-to-modern migrations. Sectors we ship most in: fintech, healthtech, edtech, professional services, ecommerce, and B2B SaaS. If your problem is architecturally interesting and £25K+, we'll usually take the call.
The London office is 20-22 Wenlock Road, London N1 7GU. Founder and lead architect Mohit Ramani is UK-based. The delivery pod runs from Rajkot, India, with senior engineers working 09:00-19:00 UK time so you get standup + demo overlap every working day.
Three specifics. One: every engineer is senior, no juniors on production code. Two: fixed £8K audit anchors every engagement — you see the full quote before you commit to the build. Three: 30-day walk-away in both directions, IP on commit, so you're never locked in. If those three matter, we're a fit. If cheapest bid wins, we're not.
The £8K audit + fixed quote model. Typical 2025-26 builds landed £25-85K for an MVP or single-product build, £65-180K for a full SaaS platform, £110-300K for regulated fintech / healthtech / M&A-ready code. Every quote is line-itemed — you can cut any piece.
Yes — 80% of the 200+ projects since 2019 have been UK-based. Split roughly 60% direct-with-founder-CTO on startups and 40% white-labelled behind design + branding agencies. Both engagement shapes are documented on /agencies and /startups respectively.
Yes — Manchester, Birmingham, Edinburgh, Bristol, Cambridge, plus EU-wide and US clients. Delivery is remote-first with an on-site option in London when it's useful (design workshops, exec-level architecture reviews). Travel outside London is charged at cost.
Yes. SOC 2 Type II achieved December 2025. UK GDPR + EU GDPR Data Processing Agreement on file with Standard Contractual Clauses for cross-border. 30-day DSAR runbook. ICO audit-defendable trail on the contact-form pipeline. Vanta evidence pipeline available for client engagements.
Audit weeks book 2-4 weeks out for standard slots. Emergency audit weeks (24-hour turnaround, £12K instead of £8K) available roughly once a quarter when the pipeline allows. Email Mohit direct for the current slot situation.
Send a 5-line brief. That's it.
Tell us the product, the users, the timeline, and the one architecture question that's stuck. Mohit replies from London inside 24 hours.