Who you'll be talking to
Since 2019, Jean-Samuel Jéquier has been building applications for entrepreneurs and large companies alike: about a hundred in total, in tourism, non-profits, retail, healthcare, fintech, accounting and many other industries.
He founded Maniaque because AI finally makes this level of custom software affordable for every business, not just the biggest ones. What doesn't change: someone who listens, answers and meets their deadlines.
Jean-Samuel Jéquier, founder
Before Maniaque, he worked at companies such as Airbus and Airdev.
In São Paulo, Eliakim Oliveira is the one who answers you: the person who listens to you is also the one who builds your tool and commits to the dates.
The Maniaque way: AI writes the code, fast, and someone stays accountable for the result, from the audit to every delivery.
Eliakim Oliveira, Maniaque São Paulo
For more than six years, Nthuseni Mathaga has been building web and React Native applications for clients across the US and UK. He helped deliver around 70 client applications, gaining experience in software architecture, data modelling and product design across a wide range of products.
Today, he builds full-stack applications using TypeScript, React, Next.js, Node.js and Python, with AI-assisted development tools like Claude Code, OpenAI Codex and Cursor. He also builds AI agents, RAG systems and evaluation workflows.
The tools are changing quickly. What doesn't change: thoughtful engineering, clear communication and software that works for the people using it.
Nthuseni Mathaga, Maniaque Johannesburg
About Maniaque
Since 2026
Maniaque is not an agency. It's a network of Product and AI partners who share resources and best practices with each other in the age of AI, but each partner has their own clients. This way, customers don't pay for any of the costs of an agency.
Want to join the network? Reach out to hello@maniaque.xyz.
Let's talk about what bugs you every day.
45 minutes, free and with no commitment. You then get one clear page: the problem, what the first version would do, the total monthly cost, and our honest opinion, even if it's to tell you no.
Pick a time slot