Bespoke software development for London companies
London firms in finance, property, healthcare and professional services use Zynoff.ai as their senior engineering team: a flat monthly capacity instead of a six-figure project quote or a six-month hiring process.
Written reply from a senior person · no pitch deck · no obligation
- Senior engineers only, working UK hours in your tools
- Architecture and code reviews from the first week
- Support for FCA, GDPR and Cyber Essentials requirements
- No scope creep invoices, ever
5 days
to first merged pull request
CI/CD
from the first commit
100%
IP and code owned by you
30 days
notice to pause or stop
What we build
What Software Development includes
Senior-owned, AI-accelerated and integrated into your stack. Everything below sits inside your monthly capacity.
Backend and API engineering
Typed, documented APIs in Node.js, Python or Go with authentication, rate limiting and observability built in.
Platforms and internal tools
The admin panels, operations consoles and workflow systems that replace spreadsheets and email chains.
Data and reporting
Schemas, pipelines and dashboards designed so the business can answer its own questions.
Cloud and DevOps
Infrastructure as code, environments, monitoring and cost control on AWS, GCP, Azure or Railway.
Legacy modernisation
Incremental migration of ageing systems without stopping the business, with the old and new running side by side.
Quality and security
Automated tests, dependency scanning, secrets management and secure defaults as standard practice.
Process
How we run Software Development
Capacity starts in days. Here is what the first weeks look like.
- 1
Day 0
Kickoff
A 30-minute call to agree goals, access and the first engineering priorities. You get a named senior lead and a shared channel the same day.
- 2
Week 1
First work ships
The first pull request, design or campaign is live within five UK business days. If it is not, week one is free.
- 3
Every week
Weekly visible progress
Continuous delivery into your repositories and tools, a written weekly update and always-on chat during UK hours.
- 4
Monthly
Review and flex
A strategic review where you reprioritise, scale capacity up or down, or pause. No change orders and no re-quoting.
Fit
When Software Development is the right call
You have outgrown off-the-shelf tools
The SaaS stack no longer fits and workarounds are costing more than custom software would.
You need senior capacity now
Hiring takes months. A senior team starts in days and works inside your repositories and processes.
A legacy system is holding you back
It works, but nobody wants to touch it. We stabilise it and move it forward piece by piece.
You are building a SaaS product
Multi-tenant architecture, billing, roles and an API strategy designed for scale from the start.
Stack
Tools we use for Software Development
We use what fits your business and your existing systems, and we say so when the answer is 'not this one'.
Languages
- TypeScript
- Node.js
- Python
- Go
- Rust
Data
- PostgreSQL
- Redis
- MongoDB
- Snowflake
- BigQuery
Cloud
- AWS
- GCP
- Azure
- Railway
- Cloudflare
Practice
- GitHub Actions
- Docker
- Terraform
- OpenTelemetry
- Playwright
FAQ
Software Development questions, answered.
Yes. We work with businesses across Greater London, from the City and Canary Wharf to Shoreditch, King's Cross, Westminster and the outer boroughs, with in-person kickoffs where useful and day-to-day delivery in your tools during UK hours.
Let's build it together.
Tell us what you need from software development and a senior person will reply with a written, no-obligation view.
No pricing pages, no sales sequences. A written reply from a senior person.