Custom software development
Purpose-built systems designed around how your business actually operates — not how an off-the-shelf tool assumes it does.
Software Engineering Agency
We build software that means business.
10+ years of software engineering experience, helping businesses design, build, modernize, and scale reliable software across technologies and platforms.
- 10+years engineering
- Full stackweb, mobile, cloud
- End to enddiscovery to production
Expertise
What we build
From greenfield products to systems that have been in production for a decade. We work across the full stack and take ownership of the outcome, not just the code.
Web applications
Fast, accessible, maintainable web products — from customer-facing platforms to internal tools that teams rely on every day.
Mobile applications
Native and cross-platform apps for iOS and Android, built with the same rigour we apply to the backends that power them.
APIs & integrations
Well-documented APIs and dependable integrations with payment providers, CRMs, ERPs, and the third-party services your business runs on.
Cloud & infrastructure
Cloud architecture, containerisation, CI/CD, and observability — so releases are routine and production is boring in the best way.
Legacy modernisation
Incremental migration of ageing systems to modern stacks — without a risky big-bang rewrite or interrupting the business.
Technologies
Stack-agnostic. Opinionated about quality.
We choose tools to fit the problem, the team that will maintain it, and the years it needs to run — not to chase trends. These are the technologies we work with most often.
Frontend
Backend
Mobile
Cloud & DevOps
Data
Experience
Thirteen years of shipping to production.
Yellow Black has delivered software across industries, platforms, and team sizes — from early-stage products finding their footing to established systems handling real volume. That breadth is what lets us make good calls quickly.
- Years of software engineering
- 10+
- Platforms
- Web · Mobile · Cloud
- Engagement model
- Discovery → Production
Industries we've worked across
- SaaS & B2B platforms
- Fintech & payments
- E-commerce & retail
- Healthcare
- Logistics & operations
- Education
- Media & publishing
- Professional services
Approach
How we work
A pragmatic process that favours clarity over ceremony. Small, well-defined steps, working software early, and no surprises at the end.
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01
Discover
We start by understanding the business problem, the constraints, and what "done" actually means. Scope, risks, and priorities are made explicit before anything is built.
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02
Design
Architecture, data models, and interfaces are designed for the next five years, not the next sprint. We choose the simplest thing that will hold up under real load.
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03
Build
Short iterations, reviewed code, automated tests, and working software in your hands early. Progress is visible in a running system — not in a slide deck.
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04
Ship & support
Automated deployments, monitoring, and documentation from day one. After launch we stay on to stabilise, measure, and keep improving.
Engagements
Ways to work with us
Every engagement is structured around the outcome you need — and stays flexible as it evolves.
End-to-end product development
You have a product to build. We take it from discovery through architecture, build, launch, and ongoing iteration — one accountable team for the whole lifecycle.
- Discovery & technical planning
- Design, build, and launch
- Post-launch iteration
Dedicated engineering capacity
Your team needs more senior hands. We embed experienced engineers who work inside your process, your codebase, and your tools from the first week.
- Senior engineers, not juniors in disguise
- Integrated with your workflow
- Scale up or down as needed
Modernisation & rescue
An existing system is slowing you down — hard to change, hard to deploy, or hard to trust. We stabilise it, then migrate it incrementally without halting the business.
- Codebase & infrastructure assessment
- Incremental migration plan
- Stability and delivery speed restored
Architecture & technical consulting
You need an experienced, independent view before committing. We review architecture, audit codebases, and help you plan with confidence.
- Architecture & code reviews
- Technology selection
- Roadmap and risk assessment
Why Yellow Black
Built by engineers who have seen what breaks.
Thirteen years is long enough to have made the mistakes, learned from them, and built the habits that prevent them. That experience shows up in every decision we make.
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Senior engineering, end to end
Experienced engineers handle the work — from the first architecture conversation to the last production deploy.
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Pragmatic, not dogmatic
We pick the right tool for the job and the simplest design that will last. No résumé-driven technology choices.
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Quality is built in
Code review, automated testing, and CI/CD are defaults, not extras. Attention to detail is how we work, not a line item.
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Clear, honest communication
Straight answers on scope, timelines, and trade-offs. You will always know where things stand.
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Long-term thinking
We build software your team can understand, maintain, and extend for years — with or without us.
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Reliable delivery
Commitments are made carefully and kept. Predictable delivery is part of the engineering, not a hope.
Contact
Have something to build?
Tell us about the project, the problem, or the system that needs help. We'll come back with an honest view of the work involved and how we would approach it.