Production-grade apps in 2–12 weeks, handed over with a runbook.
App Development at CodingNexus is a 4–12 week senior-led build with weekly demoable sprints, production-grade defaults baked in (auth, audit log, CI/CD), and a runbook at handover. .NET 8 + Blazor is the default stack.
Internal tools that started as "just a quick admin" are now load-bearing.
The MVP that nobody planned to keep is now in front of customers, on-call rotates around it, and the original author has left. App Development at CodingNexus is the engagement shape for two situations: a green-field build where production-grade defaults matter from sprint zero, or a takeover of an existing app that has outgrown its origin story and needs a structured rewrite or rescue.
Five phases.
Scoping call
Clarify users, top-3 must-haves, exclusion list.
Sprint 0 (week 1)
Architecture, repo, CI/CD, design tokens, deployment pipeline.
Iterative sprints (2 weeks each)
Demoable feature every sprint, no big-bang.
Production hardening
Security review, performance pass, monitoring setup.
Handover or maintenance contract
Founder-led handover or ongoing retainer.
What you walk away with.
- Working app deployed to your hosting (or ours during the build)
- CI/CD pipeline that runs on every push, blocks merge on red
- Auth, audit log, monitoring wired in from sprint zero — not bolted on later
- Source code, repo handover, written architecture document
- Runbook + on-call cheat sheet
- Optional 90-day stabilization retainer
When NOT to hire me for this
If you need an MVP in 2 weeks for fundraising and don't yet know the user, you need a designer-led shop, not me. We're the right fit when production-grade defaults matter from day one.
App Development questions.
What is App Development at CodingNexus?
A 4–12 week senior-led build with weekly demoable sprints, production-grade defaults (auth, audit log, CI/CD), and a runbook at handover. .NET 8 + Blazor is the default stack.
Do you do mobile apps?
React Native or .NET MAUI when mobile is truly required. For the common case of "we need a phone-friendly admin tool", a responsive Blazor build is the right answer.
Will you take over an existing codebase?
Yes, after a 1-week code audit at fixed price. The audit produces a written triage: what is salvageable, what should be rewritten, and the order of operations.
What does an engagement cost?
EUR 10–120k depending on scope, integrations, and number of sprints. Fixed-price after the scoping call.
Talk about your app.
Bring a Figma link, a half-built repo, or a list of must-haves. 30 minutes, no slide deck.
Email instead: