A Fractional Senior Developer in Your Corner
AI writes the code. But who catches the mistakes? Whether you're building it yourself, want it built smarter, or need your team to level up — experienced eyes when it matters.
Where are you on the journey?
Building it yourself
"I want to build it myself with AI"
You've got an idea and you're convinced you can build it with AI tools. Maybe you can. But there's a difference between code that works and code that's built right. I'm your safety net — regular architecture reviews, honest assessments, and guidance on where AI shines and where you need to be careful.
Typical client
A founder, product person, or technically-curious non-developer building their first real project with AI assistance.
Want it built right
"I want it built, but AI should make it cheaper"
You've had quotes from agencies. The numbers felt high. AI should bring costs down — and it does when guided by experience. I build it using AI extensively, with a senior developer's eye on every decision. You're involved throughout, shaping the product as it develops.
Typical client
A business owner, entrepreneur, or startup founder who knows what they want but needs someone to build it properly.
Team levelling up
"My team is using AI but it's not coming together"
Your developers are using AI tools. Code is being generated. But the architecture is inconsistent and you're not sure it'll hold up. I work alongside your team — reviewing output, coaching on what to look for, and setting up the right review gates.
Typical client
A CTO, tech lead, or non-technical founder with a small-to-medium development team.
How it works
Every engagement is different, but the building blocks are the same. We'll figure out the right mix based on what you need.
- Async access Message me when something comes up. I respond within a working day, often faster. No scheduling overhead for quick questions.
- Regular check-ins Structured conversations — typically weekly or fortnightly — where we review what's been built, what's coming, and what needs attention.
- Architecture reviews When you're making a significant technical decision, I'll review the options and give you a clear recommendation with reasoning.
- Developer support Your team can reach out directly. Code reviews, pair debugging, guidance on approach — available as part of the engagement.
The person behind Fracsen
David Channon
25+ years building software — from startups to enterprise, from PHP monoliths to serverless TypeScript. Senior developer, tech lead, CTO. Based in Budapest, working with teams across Europe.
LinkedIn profileStraightforward pricing
Advisory & Reviews
From €1,500/mo
For when you're building and need experienced oversight.
Team Support
From €2,500/mo
For when your team needs coaching and architectural guidance.
Full Engagement
From €3,500/mo
For when you want it built right, with AI acceleration.
All engagements are month-to-month. No lock-in. Scales with involvement.
Not sure yet?
Start with a one-time Architecture Health Check — a focused 2–3 day review of your codebase with a written report and prioritised recommendations.
€1,500 one-off
Ask about the health check →Let's have a conversation
Not sure which fits? That's fine. Let's talk and figure it out. No pitch deck. No sales funnel. Just an honest chat.
hello@fracsen.com