# Faris Brni > Faris Brni is a principal engineer and founder based in Hamburg, Germany, who also works as a fractional CTO and consultant. He has been building and shipping web and mobile products since 2015 — architecture, technical leadership, TypeScript, React, React Native and AI. His site also prints a personal newspaper, The Daily Commit. The homepage is where people hire him: what he builds, past clients, how a project starts, and an AI intake chat. He also prints a personal newspaper, "The Daily Commit", at https://farisbrni.com/news. ## Facts - Name: Faris Brni (handle: @FarisBrni) - Roles: Principal Engineer, Founder, Fractional CTO, Consultant - Available for: Fractional CTO, Architecture & code reviews, Hands-on principal engineering, Technical due diligence - Based in: Hamburg, Germany (Central European Time) - Building software since: 2015 - Interests: Software architecture, Technical leadership, Fractional CTO, Startups, TypeScript, React, React Native, Next.js, Node.js, GraphQL, WebGL, Shaders, Artificial intelligence, AI agents, Cryptocurrency, Product engineering - Contact: https://farisbrni.com/letters (goes directly to his inbox) - X / Twitter: https://x.com/FarisBrni - LinkedIn: https://www.linkedin.com/in/farisbrni/ ## About Somewhere between the Elbe and a very long terminal session, Faris Brni is building things. As a principal engineer that means architecture, technical direction and production systems that stay boring at 3 a.m. For founders who need one, it means stepping in as a fractional CTO. He co-founded his first company in 2015 and has been shipping ever since. He writes TypeScript the way other people write shopping lists, holds opinions about React that are firmer than he admits, and once fell far enough down the crypto rabbit hole to ship an app from the bottom of it. These days he collects AI tools the way other people collect vinyl — and wires the good ones into real products. Asked for comment, he pointed at the rubber duck on his desk. The duck, pictured, declined. This newspaper is his personal page: no résumé, no trophy cabinet — just the work and the things he likes making. Arrived from one of his products, or need a senior engineer, a CTO or a second opinion? The Letters page goes straight to his inbox. ## Work with him - **Fractional CTO**: Technical strategy, architecture, hiring and delivery for startups and scale-ups — part-time, full attention. - **Architecture & code reviews**: A senior second opinion on systems, platforms and codebases before they get expensive. - **Hands-on principal engineering**: Designing and building the hard parts of web, mobile and AI products — then leaving the team stronger. - **Technical due diligence**: Clear, honest assessments of a product’s technology, team and risks for founders and investors. - Enquiries: write via https://farisbrni.com/letters or book a call at https://farisbrni.com/meet ## Past clients - [Liquid](https://www.liquid.trade): Leveraged trading in crypto, stocks, FX and commodities, from one app. He built: Trading terminal, Android app, AWS setup. - [Co-Invest by Liquid](https://www.liquid.trade/coinvest): Liquid’s AI trading analyst and MCP server: research, size and place trades without leaving the chat. He built: MCP server, Agentic finance. - [chck.ai](https://chck.ai): AI card grading: two photos in, sub-grades, a certificate and a market value out. He built: Developer platform, Grading API. - [PC Sportscards](https://www.pcsportscards.com): One of the largest modern sports-card dealers: PSA grading and eBay consignment for collectors. He built: Website, Customer portal, Mobile app. ## What he works on - **Principal engineering** — Systems that outlive their authors: Architecture, platform design and the unglamorous decisions that keep production boring. Sets the technical direction — and still writes the code. - **Fractional CTO** — Technical direction, on demand: Part-time CTO for startups and scale-ups: roadmaps, architecture, hiring and the hard calls, with full attention. - **Founder** — Knows what shipping costs: Co-founded his first company in 2015. Builds with an owner’s eye for what matters now and what can wait. - **Consulting** — Second opinions, first principles: Architecture reviews, technical due diligence and rescue missions for teams that need a senior pair of eyes. - **TypeScript** — Types all the way down: Believes a good type signature is a love letter to your future self. Will spend an hour making the compiler smile. - **Web & mobile** — Browsers and pockets: React on the web, React Native on iOS and Android — one team, one language, products that feel native everywhere. - **AI** — Tool collector, agent builder: Tries every new AI tool so you don’t have to, keeps the good ones, and wires them into products that earn their keep. - **Crypto** — Came for the charts: …stayed for the distributed systems. Still thinks a block explorer is a perfectly good bedtime read. - **Graphics** — Pixels that misbehave: Halftones, dithering, three.js. This paper renders its own photos on your GPU, sixty times a second. ## Frequently asked ### Who is Faris Brni? Faris Brni is a principal engineer and founder based in Hamburg, Germany, who also works as a fractional CTO and consultant. He co-founded his first company in 2015 and has been building and shipping web, mobile and AI products ever since, mostly with TypeScript, React and React Native. ### Can I hire Faris as a fractional CTO or consultant? Yes. He works with startups and established teams as a fractional CTO, on architecture and code reviews, technical due diligence, and as a hands-on principal engineer on the hard parts of a product. Write via the Letters to the Editor form or book a call. ### What does Faris work on? Web and mobile products end to end: system architecture, platform and API design, TypeScript/React front ends, React Native apps and AI-powered features — plus technical strategy and team building as a CTO. The Workshop section lists what is currently on the bench. ### How do I contact Faris Brni? Write a letter via the Letters to the Editor form on this page (it lands directly in his inbox), book a call, or message @FarisBrni on X. If you came from one of his products, mention which one. ### Where is Faris based? Hamburg, Germany — 53.55° N, 9.99° E, Central European Time. ### Does Faris publish papers? Papers, preprints and long-form notes are published in the Science Desk section of this site as they are finished, with an RSS feed for anyone who wants them first. ### Why is this website a newspaper? Because a résumé is a list of things that already happened, and a newspaper is about what is happening today. Also: halftone shaders. ## Papers - None published yet. New papers will appear at https://farisbrni.com/papers and in https://farisbrni.com/feed.xml ## Blog - [27 startup programs with up to $350k in free cloud and AI credits](https://farisbrni.com/blog/startup-credits) (updated 2026-10-06): How much each program gives, who actually qualifies and where to apply. Checked against every vendor's own page on October 6, 2026. ## Pages - [Home: work with Faris](https://farisbrni.com/): what he builds, past clients, how a project starts, FAQ, AI intake chat, book a call - [The Daily Commit](https://farisbrni.com/news): his newspaper: profile, workshop, news wire, papers, puzzles, classifieds, letters - [Letters (contact)](https://farisbrni.com/letters): contact form; accepts ?ref= to tag the source - [Papers](https://farisbrni.com/papers): papers and long-form writing - [Blog](https://farisbrni.com/blog): practical posts for founders, e.g. a checked list of startup cloud and AI credit programs - [RSS](https://farisbrni.com/feed.xml)