# Vasileios Fasoulas Product Engineering Leader. London, UK. https://fasoulas.com/ > Product Engineering leadership for orgs that build platforms, not just features. A leader with over two decades building and operating teams, scalable platforms, and digital products across start-ups, scale-ups and enterprise environments. From fast-moving, hands-on product teams to globally distributed programmes of 100+ people; with architecture expertise that moves between hands-on delivery and long-range strategy, tested across multiple stacks and clouds. Recent focus on AI-native and agentic software development: AI-assisted engineering workflows, autonomous agent systems, LLM orchestration, and spec-driven approaches that tighten the loop between product and engineering. A consistent view across two decades of change: stacks and frameworks turn over, but peopleware, product thinking and execution discipline are what actually make digital products and orgs successful. - LinkedIn: https://www.linkedin.com/in/fasoulas - GitHub: https://github.com/fasoulas ## At a glance - 20+ years in industry - 250+ engineers led - 40+ global brands - 5 business replatforms ## Experience ### New role (Sept 2026 – present) ### Founder and CTO, Alpha44 (Sept 2025 – Aug 2026) https://www.alpha44.com - Offering fractional CTO services to agencies and startups ### Head of Engineering, Meshx (Nov 2025 – May 2026) https://meshx.io - Own engineering's daily operations and alignment with company objectives - Set engineering strategy to enhance product development and innovation - Guide design and execution of engineering projects against quality and timeline standards - Accelerated delivery cycles using AI agents and spec-driven development, increasing sprint velocity by 200% - Championed AI agents for ChatOps, extending DevOps knowhow and capability across the organisation - Directed development of agents spanning the full software development lifecycle, from ideation to deployment ### Head of Engineering, Heat Geek (Feb 2024 – Sep 2025) https://www.heatgeek.com - Designed and delivered an API-first, multi-tenant architecture for partner integration - Introduced event-driven thinking to the organisation, educating the team on event storming and modelling - Oversaw architecture of the next-generation platform: event-sourced, CQRS-based, built alongside The Composable Architecture (TCA) for iOS - Led AI and process automation for third-party integrations - Brought engineering rigour to exploratory Data Science work, hardening it for production ### Chief Technology Officer, Sliide (Nov 2021 – Nov 2023) https://www.sliide.com - Transitioned from Chief Architect with no team or budget to full accountability for engineering, on the strength of recognised impact - Responsible for QA, Data Engineering, DevOps, Mobile Apps and Platforms (headcount: 72, direct reports: 5) - Set technology strategy underpinning all roadmaps and development - Partnered with the Chief Product Officer to align product vision with technology vision, including platform-as-a-product initiatives ### Chief Architect, Sliide (Feb 2021 – Nov 2021) - Gave architectural leadership, design and approval for all significant projects - Guided the development team with reference architectures - Developed technology roadmaps for the organisation - Sat on the senior management team as direct liaison with senior business stakeholders ### Technical Director, Digitas – Formula 1 account (Jul 2019 – Feb 2021) https://www.digitas.co.uk - Owned technology direction for the agency's flagship F1 account - Managed onshore and offshore delivery across front end, back end, native mobile and data/analytics - Combined Azure, AWS and GCP to deliver two headless F2/F3 sites on Next.js with CloudFront and Lambda@Edge - Provided technical consultancy to F1 and coordinated solution design across multiple partners and vendors - Reported jointly to the Head of Technology and Chief Product Officer, triaging initiatives across product, tech and delivery ## Earlier career (1999 – 2019) - 2018–19: Technology Principal, Idean - 2017–18: Technical Director, The BIO Agency (Arrow Electronics) - 2014–17: Technical Director, Possible (Manchester City, Aston Martin) - 2012–14: Technical Director, Radley Yeldar (GSK) - 2011–12: Technical Architect, BBC Worldwide - 2010–11: Technical Director (Contract), VCCP - 2009–10: Senior Technology Lead & Solutions Architect, R/GA - 2008–09: Technical Architect, Razorfish - 2007: Integration Consultant (Contract), London Capital Group - 2007: Business Analyst Consultant (Contract), Morbus Consulting / Defra - 2006–07: Web Services / SOA Researcher, City University - 2005–07: Visiting Tutor, City University - 2000–01: Software Engineer (Placement), CERN - 1999: Systems Analyst (Contract), Pylon-Engineering SA ## Skills - Leadership & Delivery: Engineering strategy, Technology roadmaps, Stakeholder management, Onshore/offshore delivery, Vendor/partner management - Cloud & Platforms: AWS, Azure, GCP, Multi-cloud strategy, Serverless, FinOps, Scaling - AI & Agentic Engineering: AI-assisted engineering workflows, Multi-agent orchestration, Spec-driven development, Agentic ChatOps & SDLC automation - Data & Engineering Practice: Data Engineering, Event sourcing, DevOps, CI/CD, QA & testing culture, Systems Hardening - Architecture & Patterns: Event-driven architecture, CQRS, Event storming, API-first, Multi-tenant design, Reference architectures - Frontend & Mobile: SPA, TypeScript, Next.js, React Native, iOS (TCA), Android (Jetpack Compose, MVI) ## Education - MSc Business Systems Analysis & Design, City St George's University. Graduated with Distinction. Thesis: Web Services Monitoring, awarded best computing project of the year. - BSc (Hons) Software Engineering, Brighton University (Sandwich). Graduated with Honours (2:1). Dissertation: Web Services — Which Is Their Role in Enterprises.