CTO · Founder · Software engineer

ILYAILIN.

18+ years building software.

I’ve been a co-founder and CTO, led development at AstraZeneca and Taxfix, and built my own apps. I work with founders and enterprise teams on their products, architecture and engineering.

Book a callMadrid, Spain

Companies I’ve worked with

Pet projects

My apps on the App Store

I develop and run my own iOS apps, including the backend, releases and product analytics.

Topics AI

An iOS chat app with AI, personal context and memory.

AI · iOS

LingoTunes

An iOS app for learning French through songs.

Learning · iOS

Co-founder & CTO

Anonygo

2013—2016

Ilya Ilin at TechCrunch Disrupt, New York, in 2015 — TechCrunch Disrupt · New York, 2015

I co-founded Anonygo in 2013. In 2015, I presented the company to investors at TechCrunch Disrupt in New York.

Until 2016, I was responsible for the architecture, development team, code reviews and mobile app.

Experience

Selected experience

The roles, the products and the engineering work.

2025

AstraZeneca

Lead Front-End Engineer

React interfaces, generative AI and deterministic LLM programming.

AI · Enterprise

2024

European Patent Office

Lead React Developer

Full-stack development with React and React Native.

Web · Mobile

2023

Power International Holding

Senior IT Analyst · Head of Development for Strategic Products

Strategic product development across React, React Native and .NET.

Technology leadership

2021

Taxfix

Lead React Developer

Full-stack development for a digital tax product, across mobile and web.

Fintech

2018

Cochlear

Lead Mobile Developer

Bluetooth Low Energy programming and custom React Native packages.

Connected devices

Also: Oodi, RoadStr, Wispence, MarketsFlow, Fika, Dish.fm and RIA Novosti.

CTO services

When you need a CTO

I work with founders and enterprise companies on architecture, engineering teams and product development, on an ongoing basis or for a specific project.

Contact ↗

Architecture

Review the system you have, identify the constraints and decide what needs to change.

Architecture reviews
Build or buy decisions
Cloud infrastructure
Technical due diligence

Engineering teams

Help developers make decisions, review work and take responsibility for releases.

Team responsibilities
Code reviews
Technical hiring
Support for engineering leads

Product development

Work out what to build first and help the team get it into users’ hands.

MVP scope
Web and mobile development
Testing and releases
Product analytics

AI features

Build AI into a specific part of the product, with checks for quality, cost and failure.

LLM integration
Evaluation cases
Usage limits and costs
Fallbacks when the model fails

Getting started

We start with a call about what you’re building and where you need help. Then I suggest a scope, a way of working and what you should expect at the end.

Articles