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SIMON SISAY

2026

INDEPENDENTproduct engineer.

Building high-velocity AI products and reliable agentic workflows that bridge the gap from prototype to production.

Talk in Arabic
ProveYou
Beyond Local

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Services

WHAT I DO

Specialized engineering services focused on taking products from idea to production with speed and reliability.

MVP Development
/01

MVP Development

Rapidly architecting and deploying production-ready MVPs. I turn your core idea into a functional, scalable product in weeks, not months.

AI Integration & Reliability
/02

AI Integration & Reliability

Bridging the gap from 'vibe-coded' prototypes to stable AI systems. Implementing agentic workflows, observability, and regression testing.

CTO as a service
/03

CTO as a service

Fractional technical leadership for non-technical founders. High-level architecture, team scaling advice, and senior engineering without the equity dilution.

Cross-Platform Apps
/04

Cross-Platform Apps

End-to-end full-stack systems and high-performance mobile applications built with React Native.

Testimonials

Hear from the ClientsI've partnered with

When Simon engaged with IDEO, our website stack was in the process of migration onto a newer hosting platform, using a new codebase, and backed by a new CMS system. He did not have the benefit of overlap and knowledge transfer with the original site developers but worked quickly to get us migrated to a modern and properly managed technology stack. This was no small feat considering the site at the time consisted of three versions all with different stakeholders, languages, and content update processes. Once the site was migrated, he had been an excellent collaborator and provided top-notch support and communication. He handled regular site improvements and content updates through our ticketing process with prompt attention and clear communication. Please strongly consider him for any web developer needs you may require.

William Fisher
William FisherDirector, Systems Engineering at IDEO

Simon joined us during our early startup phase, and his technical expertise was instrumental in building and scaling the TextCortex platform. He successfully implemented several key sub-products now used by millions of users. His technical execution, exceptional ownership, and ability to operate with full autonomy made him an invaluable asset to our team.

Dominik Lambersy
Dominik LambersyCo-founder at TextCortex

Simon has been a cornerstone of our technical projects for years. He started as a reliable engineer, but he’s really become a true partner to us. What I appreciate most is his balance, he can build out an entire app from scratch, but he’s also the guy who has patiently trained over 20 of our developers. He’s incredibly easy to work with, pivots whenever we hit a snag, and is just genuinely respected by everyone he works with. I can’t recommend him enough

Yoni Dejene
Yoni DejeneFounder at Alama

Simon is a highly-skilled Engineer who can get the job done quickly without sacrificing quality. I worked with him and his team and he is a very communicative individual whom I could trust to deliver top-notch results. I want to thank him for his kindness, for the passion he puts to every work no matter how simple it may be, and for always exceeding my expectations.

Mario Sanchez
Mario SanchezManager at Tencargo

READY TO SYNC?

Whether you're looking for a CTO-partner, an AI stabilizer, or a rapid MVP build, let’s map out the most efficient path to production

Silicon Valley quality. Global efficiency. Zero equity.

> Status: Accepting Q1 Projects
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