Looking for a job

Stephane Roche

@stephaneroche

Software engineer and founder at Astral Horizon Labs, building Piko solo and developing Bitcoin, AI, and agent payment products.

Paraguay

Message

What I'm looking for

I’m open to senior product builds for founders and teams, and to Move and smart-contract work for crypto protocols. I seek fully remote B2B engagements through Astral Horizon Labs LLC (New Mexico, USA), with international mobility and US Central overlap. My current stay in Paraguay is temporary; I plan to move in about two weeks.

At Astral Horizon Labs, I built Piko, a two-market marketplace, solo across product design, engineering, AI-assisted creative production, and go-to-market. It runs on Nuxt 4, Nitro on Cloudflare Workers, Supabase, and Capacitor for iOS and Android.

At Sevenlabs, Prem, and BitGPT, I worked across Bitcoin and Liquid products, generative AI applications, and autonomous payment systems for AI agents. My work included the Marina wallet, the TDEX atomic swap ecosystem, a crypto assistant, and agent-to-agent crypto transaction workflows at 402Pay.

I’ve also worked on a cross-platform Bitcoin wallet at Volalti AG, Ethereum smart contracts at dether, and a Bitcoin wallet browser extension during my internship at Ledger. I’m open to senior product builds for founders and teams, as well as Move and smart-contract work for crypto protocols.

Experience

Work history, roles, and key accomplishments

Current

Founder & Principal Engineer

Current

Astral Horizon Labs

Feb 2026 - Present (8 months)

Founder of a product studio. Built Piko, a two-market marketplace, solo across product design, engineering, AI-assisted creative production and go-to-market: Nuxt 4, Nitro on Cloudflare Workers, Supabase Postgres and Storage, Capacitor for iOS and Android.

Mobile Engineer (Kotlin Multiplatform) — Bitcoin Wallet

Volalti AG

Apr 2026 - Jul 2026 (3 months)

Thalia — a cross-platform mobile Bitcoin wallet built with Kotlin Multiplatform / Compose.
- Multi-layer Bitcoin support: on-chain, Lightning, and Ark, plus TradFi integration.
- Led product design and UI design (from an early mockup) through to full implementation.
- Shared Kotlin Multiplatform codebase targeting mobile, with a Compose UI.

Bitcoin, LLM & Agent Payment Engineering — Sevenlabs, Prem & BitGPT

Sevenlabs FZCO

Dec 2020 - Jan 2026 (5 years 1 month)

Related companies under common management; moved between them as internal transfers, contracted as an independent contractor across the group.
- Sevenlabs, Bitcoin & Liquid Software Engineer, December 2020 - August 2023 (earlier Web Specialist engagement, September - November 2020): Marina browser-extension wallet for the Liquid network in TypeScript and React, the TDEX peer-to-peer atomic swap ec

Developer/educator

Bitcoin Studio

Oct 2017 - Nov 2020 (3 years 1 month)

- Multiple technical trainings for Alyra.fr, Eureka Certification, KryptoSphere, Breaking Bitcoin 2019
- Consulting
- Educational material. Extensive guide about the BitcoinJS library. Used as the base material for my technical trainings. (https://bitcoinjs-guide.bitcoin-studio.com)
- Node setup, Nespresso capsule dispenser over Lightning Network, websites, web apps, etc

Ethereum & Javascript developer

dether

Jun 2017 - Sep 2017 (3 months)

- Worked on a web app that facilitates in person cryptocurrency trading, based on Ethereum
- Wrote Solidity smart contracts
- Deployed and tested smart contracts with Javascript infrastructure tools (Web3, Truffle, Infura)
- React.js user interface

Javascript Web Developer

Anaplan

Sep 2015 - Oct 2016 (1 year 1 month)

- Worked on user interfaces for the Anaplan enterprise planning cloud with React.js, Sass, extensive testing, best practices
- Chrome extension leveraging DocuSign API
- Agile methodology, daily scrum meetings, Jira

Web developer / bitcoin blockchain

Ledger

Mar 2015 - Aug 2015 (5 months)

- Bitcoin wallet chrome extension for the Ledger hardware wallet (language CoffeeScript)
- Extensive unit testing

Web developer / SEO consultant

Freelance

Sep 2013 - Jul 2015 (1 year 10 months)

- Created simple websites and web applications with HTML, CSS, JQuery, Wordpress
- Evaluated the SEO status of customer websites and provided solutions (links, tags, keywords, …)
- Marketing campaigns on Facebook, Google AdWords
- Attending web development evening classes in parallel at the CNAM Paris

Audiovisual documentalist

Maison Radio France

Feb 2013 - Jul 2013 (5 months)

- Management of the audiovisual digital archive. Set up a Synology NAS (8 terabytes). Prepared orders of audiovisual files from URTI collection
- Set up a complete workflow from scratch, automated with Automator on Mac. Converting files in different format with FFmpeg, batch-processing, renaming files to follow naming conventions, and then transferred to hard disk