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Mathieu BayouMB

Mathieu Bayou

Fractional CTO | Solution Architect

€845/day
London, GB
8-15 years

Average response time: 1 hour

About Mathieu

Principal-level engineer and technical founder with 10+ years building distributed systems, developer platforms, and AI-powered products, from first line of code to scale.

I've worn both hats: hands-on Staff/Principal engineer and engineering leader. As Founder & CEO of NovaSquare, I bootstrapped ai_licia (a real-time AI co-host for live streamers) to $120k ARR and 10,000+ users. As Head of Platforms at Unibuddy, I built an award-winning Internal Developer Platform (Haystack Pioneer Award 2022) that cut idea-to-production time from 1 week to under half a day.

I specialise in Platform Engineering, Cloud Native architecture (Kubernetes, GCP, AWS, Azure), CI/CD optimisation, and event-driven systems (Kafka, RabbitMQ). My stack spans Kotlin, TypeScript, Java, Spring Boot, Node.js, and Flutter.

I'm currently available for fractional and contract engagements, 15 to 30 hours per week. Whether you need a fractional CTO to set technical direction, a Staff engineer to solve a hard infrastructure problem, or an AI advisor to cut through the hype, I deliver practical, high-impact work.
  • English

    Native or bilingual

  • French

    Native or bilingual

Can work on-site
London (up to 50km)

Experience

  • NovaSquare Ltd
    Technical Founder & CEO
    ENTERTAINMENT AND LEISURE
    May 2022 - Today (4 years and 1 month)
    London, UK
    Built the first real-time AI co-host for live streamers ('ai_licia'), managing the full lifecycle from MVP to revenue.
    ○ Business Growth: Bootstrapped company from zero to $120k ARR and 10,000+ users worldwide.
    ○ Fundraising: Led fundraising activities, securing $100k+ in pre-seed support through the creator community.
    ○ Product Strategy: Designed and built a full product suite (Web Platform, Desktop apps for Windows/macOS via Electron, Mobile
    Companion via Flutter).
    ○ Technical Execution: Architected a real-time backend processing millions of chat interactions daily. Kept infrastructure costs highly efficient from Day 1 using Kubernetes and rigorous resource optimization.
    ○ Operations: Recruited and managed a distributed team of contractors (Design, Partnerships, Community). Secured integration
    partnerships resulting in a 50% growth boost.
    CEO Solution Architect Technical Strategy Cloud architect
  • Peer
    AI/ML Advisor
    CONSULTING AND AUDITS
    October 2024 - February 2026 (1 year and 4 months)
    London, UK
    Strategic advisor to founders/CTO on technical vision and roadmap.
    ○ Advising founders and CTO on technical vision, roadmap refinement, and architectural decisions.
    ○ Providing candid feedback to align AI initiatives with genuine user problems, avoiding "AI hype" in favor of tangible product value.
    Solution Architect Technical Advisor artificial intelligence AI Product Development Cloud architect
  • Pensight
    Lead Platform Engineer
    SOCIAL NETWORKS
    July 2022 - June 2023 (11 months)
    London, UK
    Strengthened platform reliability and scalability for a fast-growing creator commerce product.
    ○ DevEx Transformation: Overhauled CI workflows, reducing development and deployment time by >60%.
    ○ Scalability: Supported user growth from 2k to 15k+ monthly users while maintaining high system stability.
    ○ Architecture: Designed a secure OAuth-based identity system to increase trust. Refined backend APIs to accelerate product iteration for the frontend teams.
    ○ Strategy: Collaborated with Product/Design to implement user-event tracking for data-driven strategic decisions.
    System Architecture Cloud architect Platform Engineer Kotlin Typescript

Recommendations

Gregory MccallumGM
NJ
Gregory Mccallum and 1 other person have recommended Mathieu

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Education

  • MSc.
    ENSEIRB-MATMECA
    2017
    MSc.

Skill set

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