Lasse Jacobsen

Lasse
Lasse with a surfboard

AI-pilled Fullstack Developer

10+ years of high-autonomy experience

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Hobby Project

AI-first Anki alternative for language learners. Hobby project launched in early-mid 2026; currently 500 users with 70000 cumulative card reviews. Functions fully offline and is architected to ship to all major platforms (web, pwa, android and iOS) with a single codebase.

2026 · 744 contributions

GitHub contributions

The Devcon Southeast Asia team

2020 – 2026

Ethereum Foundation - Devcon Team

Fullstack Developer

Developed and maintained the Devcon/nect web properties for almost 6 years. Work includes architecting and building the Devcon monorepo, event/attendee-apps, automating internal systems, marketing initiatives, ticketing infrastructure, crypto payments, offline-first event apps, AI integrations, authentication, venue maps, event scheduling, assisting in the broader organization (blog.ethereum.org, ethereum.foundation), and way more.

2025 · 1,153 contributions*

2024 · 762 contributions*

2023 · 353 contributions*

2022 · 444 contributions*

2021 · 371 contributions*

2020 · 72 contributions*

GitHub contributions

*not exhaustive; some work unrecorded

svift.net website

2017 – 2020

svift.net

Tech lead

Responsible for building and leading the development of a CMS for collaboratively building websites via drag and drop. Still running with no developer input 6 years after I left, a testimony to the robustness of the infrastructure.

2019 · 344 contributions

2018 · 674 contributions

2017 · 567 contributions

GitHub contributions

Conference Manager website

2016 – 2017

Conference Manager

Web Developer

Worked full-time in parallel to my studies at Conference Manager. Most notably helped ship a react-native app for live voting at events.

2016

GitHub not used for versioning

GitHub contributions

AP Degree Computer Science

Copenhagen Business Academy

Dreamhack win

Trademark Esports

Esports Player

#1 on the ranked ladder for multiple years in a highly competitive game with over a million active players at the time. Played in and won tournaments across the world.

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Skills

AI pilled and autonomous

I was completely sold on AI from the outset and have been doing AI-assisted coding for years already. I use heuristics (separation of concerns, bounded complexity, under-abstraction where relevant) and intuition to ensure my code scales, feels human, and stays manageable, despite being AI generated. My ability to do this stems from over a decade of hands-on manual coding and product development in the pre-AI era, in high autonomy, high pace environments. I consider myself extremely industrious and trustworthy - I do things fast and well, with no handholding - I haven't worked any other way since 2016.

  • AI development
  • AI integration
  • TypeScript
  • React
  • Node
  • Nextjs
  • App development
  • Database design
  • DevOps
  • SQL
  • NoSQL
  • PWA
  • Cloud infrastructure
  • Automation
  • SEO
  • UI/UX taste
  • Authentication
  • Payments
  • Web3
  • Product Management
  • And much more...

Interests

  • Tennis
  • Ethereum
  • Nature
  • Travel
  • Longevity
  • Meditation
  • Video games
  • Chess
  • One Piece

Languages

  • EnglishFluent
  • DanishFluent
  • JapaneseBeginner
  • GermanBeginner