We build custom software that fits the way your business actually works — SaaS products, internal tools, ERP and CRM systems, and the integrations that tie them together. Each system is designed to scale, covered by automated tests, and documented so it outlives any single developer.
At a glance
Critical processes live in shared spreadsheets and inboxes — error-prone, impossible to audit, and dependent on whoever built them.
You pay for five subscriptions, use a fraction of each, and still copy data between them by hand because none of them talk to each other.
The old system works — just — but every change is risky, the original developers are gone, and it blocks the next stage of growth.
Screens and automations designed around how your team actually works, so adoption is natural instead of forced.
Clean APIs and integrations with your existing tools — accounting, CRM, payments, email — so data is entered once and trusted everywhere.
Sound architecture, automated tests, CI/CD and documentation, so new features stay quick to add years from now.
Every custom system starts with understanding the process it replaces. We spend the first weeks with the people who'll use it — then build the smallest system that removes the most pain.
Multi-tenant SaaS from first version to scale: subscriptions and billing, roles and permissions, onboarding and the admin tooling to run it.
Dashboards, approval flows, inventory and operations tools that replace spreadsheets and manual hand-offs.
Custom ERP and CRM built around your processes, or extensions that connect and fill the gaps in the platforms you already use.
Well-documented REST and webhook APIs, plus integrations with payment gateways, accounting, logistics and third-party platforms.
Step-by-step migration away from ageing systems — keeping the business running while each part is replaced and tested.
A senior team working inside your roadmap and tools, for products that need steady, long-term development capacity.
Five stages with fixed deliverables at each one. Larger systems are delivered in releases, so value reaches users early.
Workshops with the people who'll use the system. We map the current process, the data it touches and where time and money leak out.
Data model, system architecture and integration design, reviewed with your team before we commit to building.
Two-week sprints, a demo every second Friday, automated tests and CI from the first commit. Each release goes to real users.
Data migration, user training, monitoring and a staged rollout so the switch-over doesn't disrupt daily work.
Support under an agreed response time, performance tuning and a roadmap that grows with the business.
Proven, widely supported technologies — chosen so any good engineer can pick the system up later. Where a client already has a stack their team knows well, we build on it rather than replacing it.
one language across front and back end
fast APIs and integrations
data processing and automation
high-throughput services
relational data you can trust
caching and background jobs
identical environments everywhere
scaling services in production
A first version or a single tool can be fixed. Platforms that keep evolving work best with a steady team.
MVPs and single tools
Discovery and a written architecture first, then a fixed price for the agreed modules, paid by milestone.
Platforms and SaaS products
An engineering team on your product every month — roadmap, releases and code quality handled.
Systems in production
Bug fixes, dependency updates, monitoring and small features under agreed response times.
Compare Custom Software pricing with our other services: engagement and pricing.
A logistics & field operations company in GermanyLogistics & field operations2026
A multi-tenant SaaS that runs dispatching, route execution, customer tracking and legally durable documents with signatures — built to run reliably on ordinary shared hosting.
An e-commerce accounting company in GermanyE-commerce accounting2026
A SaaS that splits Amazon, eBay and PayPal payouts into bookable line items — revenue per order, every fee and the payout in transit — and sends them to the seller's accounting software automatically.
An industrial machinery company in GermanyIndustrial machinery2026
A kiosk-style touchscreen interface for CNC machines, so operators work in one clear branded panel while the controller's vendor software runs invisibly underneath.
Usman BytesInternal product2026
The system we run Usman Bytes on: projects and clients, team roles with per-project access, task boards, an analytics dashboard and an encrypted credential vault.
Cost follows scope: the number of user roles, workflows, integrations and data migration involved. We recommend starting with a first release that solves the most expensive problem, then growing from there. After discovery you get a fixed quote per release, or a monthly rate for a dedicated team.
If an existing product fits 90% of your process, use it — we'll tell you so. Custom software pays off when the process is your competitive advantage, when you're paying for several tools that don't integrate, or when per-seat pricing becomes expensive as you grow.
You do — the source code, documentation and infrastructure accounts are yours, and the repository is accessible to you throughout the project.
Almost always. If a system has an API, webhooks, a database or even a reliable export, we can connect to it. We review the options during discovery and flag any limitations early.
Short sprints, a working demo every second Friday, a shared backlog you can see at any time, and a written summary of progress, risks and next steps after each sprint.
Yes. We're happy to sign an NDA before discussing the details of your project.
Yes. We can lead the project, work alongside your team in your tools and repository, or take on a well-defined part of the system.
Describe how the work flows today. We'll suggest what to build first and what it would cost.
