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Custom Software
Bespoke platforms built from scratch — internal tools, vertical SaaS, data pipelines, automation engines. Designed for your operation, not a template.
- greenfield
- migrations
- SaaS
- integrations
Senior engineer, no agency overhead. I build custom platforms, APIs, and production-grade systems end-to-end — you talk to the person writing the code, not a project manager.
Bespoke platforms built from scratch — internal tools, vertical SaaS, data pipelines, automation engines. Designed for your operation, not a template.
Production-grade web apps, REST and GraphQL APIs, real-time systems. Performance, observability, and a CI pipeline that actually catches things.
Diagrams that match reality. I design distributed systems, data models, and infrastructure that scale linearly — and document it so your next hire understands it on day one.
Independent review of an existing codebase — security, performance, maintainability. You get a written report with severity-ranked findings and a remediation plan, not a vague phone call.
Every line that ships comes from ten-plus years in production systems. No junior hand-offs, no offshoring, no learning on your dime.
I scope honestly and finish on schedule. If I say six weeks, it's six weeks — and if something genuinely changes, you'll know on day one, not at the deadline.
Source, infrastructure, documentation, deployment keys. I hand it all over and write the runbook. No lock-in, no proprietary nonsense, no retainer to keep the lights on.
Tell me what you're building, what's broken, or what's been sitting on your roadmap for nine months. I reply within one business day with an honest assessment — fit or not.
biuro@4code.pl →