Monty GuilhausGet in touch

FRACTIONAL CTO & HANDS-ON ENGINEERING ADVISOR

Clear direction.
Deadlines met.

I help founders and software teams make the hard technical calls, clear what's blocking delivery and ship what they promised.

Get in touchAbout meSee the results ↓

EXPERIENCE ACROSS SEI LABS · IMMUTABLE · VANTARIVR

RESULT 01 · SEI LABS · SEI COMMS

GOAL

Unify client communications into one robust pipeline, with approvals and support for Slack, Discord and Telegram.

ACHIEVED

80%

less time spent sending messages by hand.

Unified legal, marketing and platform engineering teams in one approval process.

“A rare combination of rigor, accountability, and sound judgment.”
MASIH DERKANI · HEAD OF PLATFORM, SEI LABS

RESULT 02 · IMMUTABLE · GODS UNCHAINED

GOAL

Move a live game to a new blockchain without leaving players offline.

ACHIEVED

4hours

of system downtime for the whole chain migration.

RESULT 03 · SEI LABS · AI INTEGRATION

GOAL

Get AI coding agents writing correct code for Sei, not generic Ethereum habits.

ACHIEVED

8

AI coding agents supported from one open-source skill.

“Conceived, prototyped, and delivered on his own initiative.”
MASIH DERKANI · HEAD OF PLATFORM, SEI LABS
GitHub ↗

Three ways to work together

WAY 1 OF 3 · A GOOD FIRST STEP

Technical & delivery assessment

A clear view of the problem, its risks and your next 90 days, before you commit more time and money.

YOU GET

  • An executive summary of the important findings
  • Prioritised risks, with the evidence
  • Practical options and recommendations
  • A 90-day plan and a decision workshop

One product and one team, timed around access and complexity.

Discuss an assessment

BEST WHEN

  • Delivery keeps slipping.
  • A big technical decision is coming: a migration, rewrite, integration or supplier.

WAY 2 OF 3 · ONGOING

Fractional technical leadership

Senior technical leadership in your team on an agreed monthly cadence, without a full-time executive hire.

CAN INCLUDE

  • Technical direction and architecture review
  • Delivery planning and prioritisation
  • Coaching and decision support for engineers
  • Executive updates and selected hands-on work

A defined monthly allocation, with responsibilities agreed upfront.

Discuss fractional leadership

BEST WHEN

  • Your team needs experienced technical leadership now.
  • Important work still depends on manual coordination between teams.

WAY 3 OF 3 · AI INTEGRATION

AI integration support

AI in your product, tooling or workflows, built to be accurate and maintained by your own team.

CAN INCLUDE

  • Where AI helps, and where it doesn't
  • Agent skills, tools and platform integrations
  • AI features with evaluation built in
  • Documentation and handover your team can run

Scoped as an assessment, a defined build or part of fractional leadership.

Discuss AI integration

BEST WHEN

  • You want AI doing real work, not demos.
  • AI assistants need to use your platform or API correctly.
See the Sei skill result →

NEXT STEP

What needs to move forward?

Tell me what you're building and what's in the way. On a short call we'll work out whether I'm the right person to help.

Email me
  1. 01I reply to your email
  2. 02A 20-minute fit call
  3. 03A scoped proposal, if it's a fit
Monty Guilhaus
“I recommend him without reservation.”
MASIH DERKANI, SEI LABS

I design myself out of the loop.

MONTY GUILHAUS · FRACTIONAL CTO & ENGINEERING ADVISORMONTY GUILHAUS · FRACTIONAL CTO

I design myself out of the loop.

MONTY GUILHAUS · FRACTIONAL CTO & ENGINEERING ADVISORMONTY GUILHAUS · FRACTIONAL CTO