Fractional CTO · Engineering Advisor · Supply Chain

Your engineering team should be your edge.
Let's make it one.

I step into supply chain companies and funded startups as a fractional CTO — diagnosing why delivery is slow, building teams that ship, and making AI work in practice, not just in theory. Senior judgment, hands-on execution, no full-time hire required.

Kacper Werema
Operating focus
From ambiguity to shipped, scalable systems.
Mode
Builder
Stage
0 → 1
Domain
Supply chain
Stack
TS + Rust

Delivery

"We're always busy but nothing ships."

Your team works hard. Standups happen. PRs get merged. But the product isn't moving fast enough and you can't put your finger on why. There's a bottleneck — it's just invisible from where you sit.

→ I find it, name it, and fix it. Usually within the first few weeks.

Leadership

"We need a CTO — but not a €150k salary yet."

You're past early chaos but your founding team is stretched. Engineering decisions are getting harder, technical debt is accumulating, and you need someone in the room who understands both code and business — without the full-time overhead.

→ I take the CTO seat on a fractional basis. Full ownership, right-sized cost.

AI

"Everyone's talking about AI. We're not actually using it."

You've tried Copilot. Maybe a ChatGPT wrapper. Nothing stuck. Meanwhile you keep reading about teams shipping 10x faster with AI-first workflows. The gap is real and you don't know how to close it.

→ I build AI into how your team actually works — not as a demo, as a multiplier.


Outcomes, not deliverables.

I don't hand over a strategy deck and disappear. I stay in until the problem is solved — whether that's a specific engagement or ongoing fractional leadership.

Clarity

A clear picture of why delivery is slow

Most delivery problems aren't technical — they're structural. Wrong team topology, unclear ownership, missing process at the right level. I diagnose fast and give you a concrete fix, not a vague roadmap.

Decisions

Engineering decisions tied to business outcomes

I read balance sheets. I understand unit economics. Every technical decision I make is framed around what it costs and what it earns — so you stop treating engineering as a cost centre.

Domain

Supply chain expertise that's genuinely rare

Optimization, forecasting, constrained allocation, inventory planning — I've shipped these in production for companies from €30M to €200M in revenue. That's not something you find in a generalist.

AI

AI adoption that changes output, not just tooling

I run an AI-first engineering workflow and I've made it work in a complex domain. I can do the same for your team — identifying where AI creates real leverage and embedding it into how you build.


Best fit.

  • Supply chain & logistics companies building or scaling their tech — especially where planning, forecasting or optimization is core to the product.
  • Funded startups (€1M–€15M raised) that need senior engineering leadership before they can justify a full-time CTO hire.
  • Founders who want visibility into their engineering org — not just to trust it, but to understand it and make better decisions with it.
  • Companies serious about AI that want real workflow change, not a proof-of-concept that sits in a Notion doc.

Not a fit.

I'll tell you up front if I can't help. It saves both of us time.

  • Pre-revenue with no budget. If you haven't validated your idea and you're looking for equity-only, I'm not the right call right now.
  • You prefer slow, committee-driven decisions. I move fast and I push back. If you need every change approved by six stakeholders, the engagement will frustrate both of us.
  • You want a consultant who writes specs. I'm a builder. I get my hands dirty. If you need someone to produce documents and hand them to your team, there are cheaper options.

Simple. No long sales process.

Three steps from "we have a problem" to "we have a plan."

Book the first call →
01

30-min call

I ask hard questions about where engineering is failing you. You'll know within the call whether I can help. No pitch, no deck.

02

Fast diagnosis

I spend time with your team, your codebase, your process. I find the real bottleneck — which is rarely what you think it is.

03

Engagement on your terms

Fixed-scope project, ongoing fractional CTO, or one-off advisory — structured around what you actually need, not a standard package.


0 → 1
Built Oaasis engineering from scratch at a €4.9M-funded startup
€200M
Largest enterprise client revenue at Oaasis — well beyond the core segment
4mo → 6wk
Release cycle cut at Santander Nordic across 6 teams
50+ CTOs
Mastermind sessions facilitated via CTO.pub community

Oaasis current

Head of Engineering · €4.9M-funded startup

Took the company from 0 to 1 — built the team, the technical foundations, and the supply chain planning product. Lead a team of eight. Built the go-to solution for €30–60M consumer goods companies, now landing enterprise clients at €200M revenue. Top contributor with 1,300+ commits across a TypeScript + Rust stack.

Staff Bit

CTO & Co-founder (Exit)

Built from zero to exit with P&L ownership. Led 20+ engineers, ran enterprise transformation programmes for clients including Santander and Zara.

Swoop Funding

Technical Advisor — Architecture & Leadership

Scaled from 0 to 50k+ businesses. Re-architected monolith → microservices, led the multi-tenant migration that secured a £5M grant.

Santander Nordic

Technical Advisor — Quality & Platform

Cut release cycles from 4 months to 6 weeks across 6 teams and 28 engineers. Built the E2E, load and contract automation foundation.


Think I can help? Let's find out in 30 minutes.

Tell me what's broken. I'll tell you honestly whether it's something I can fix — and if not, I'll point you somewhere useful.