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Matthias Isler

Matthias Isler

Vetted Product, Design & Engineering operator

Fractional CTO | Build Your Business. I Own the Technical Side

  • Available now
  • On Capstacker since Sep 2026
  • Artificial intelligence
  • Engineering turnarounds
  • SaaS platforms
  • Software development
  • Engineering team building
Work with Matthias

About

Matthias partners with founders to build, scale and operate AI-first technology ventures, backed by two decades of experience as an entrepreneur and CTO. As a Fractional CTO, he brings together the perspectives of engineer, CTO and founder: he finds the right people, builds engineering teams and puts in workflows that scale. He is pragmatic and hands-on, with a focus on ROI from day one, and uses AI in products, workflows and decisions only where it creates measurable advantage. When projects go wrong, he turns them around and re-establishes momentum.

Highlights

Engagements

Education

  • MS, Artificial Intelligence (in progress)University of Colorado Boulder
  • Federal VET Diploma, Mediamatics TechnicianSBW Neue Medien

Engagements

  • Engineering turnaround at a SaaS scale-up

    Fast-growing SaaS company

    • 38% reduction in development costs
    • <3% task-to-bug ratio, from >40%
    Problem
    A fast-growing SaaS company was losing customers due to software quality issues, mounting technical debt and an engineering organisation struggling to deliver.
    What they did
    Joined as fractional CTO, took ownership of engineering and rebuilt the operating model across product management, development, QA and DevOps.
    Result
    Reduced development costs by 38%, brought the task-to-bug ratio from >40% to below 3%, and eliminated technology-related customer churn.

  • What You Delivered

    Software startup

    • ~CHF74,000 to deliver the platform
    • CHF180,000–260,000 agency quotes
    Problem
    A startup received agency proposals of CHF 180,000–260,000 to develop its platform, making the planned investment difficult to justify.
    What they did
    Challenged the outsourcing approach, designed the architecture, hired one engineer and established an AI-assisted development process with clear engineering and quality controls.
    Result
    Delivered the platform for approximately CHF 74,000, while retaining the technology, knowledge and development capability within the company.

Work history

  • Chief Technology Officer

    Nature Finance Accelerator · Jul 2026 – Present

  • Advisory Board Member

    sulytics GmbH · Jan 2023 – Dec 2024

  • Fractional CTO

    Matthias Isler – Fractional CTO · Oct 2022 – Present

  • Founder & CTO

    AureaTauri · Jan 2021 – Dec 2024

  • Advisory Board Member

    Creable · Jan 2021 – Dec 2022

  • CTO & Co-Founder

    GetYourLawyer · Jan 2017 – Dec 2024

  • Board Member

    GetYourLawyer · Jan 2017 – Dec 2025

  • CTO

    Staffcloud · Jan 2014 – Dec 2018

  • Lead Developer

    Rad-Termin.ch · Jan 2012 – Dec 2014

  • Software Engineer

    Various (web agencies, software companies, freelance) · Jan 2005 – Dec 2012

Education

  • MS, Artificial Intelligence (in progress)

    University of Colorado Boulder

    2025 – 2027

  • Federal VET Diploma, Mediamatics Technician

    SBW Neue Medien

    2007 – 2011

  • Federal Vocational Baccalaureate, Information and Communication

    SBW

    2007 – 2010

Skills

Core expertise

  • Artificial intelligence
  • Engineering turnarounds
  • SaaS platforms
  • Software development
  • Engineering team building

Industries and business models

  • SaaS

Deal terms

  • Equity for Delivery
  • Equity-First + Cash Floor
  • Pay for Results
Minimum engagement
Flexible
Availability
Available now

How working with Matthias works

  1. Post a role or invite them

    Describe what you need and invite Matthias, or post the role and let Matthias apply.

  2. Agree a proposal in a dealroom

    You and Matthias settle scope, milestones and compensation in one private dealroom.

  3. Sign the agreement

    Capstacker turns the agreed terms into a contract you both sign online.

  4. Pay per milestone

    Work is tracked milestone by milestone, and Matthias is paid as each one is delivered.

Work with Matthias