Hackathon — Build Day

Your hackathon ticket includes both pre-hackathon workshops, Workshop 1 (June 8) and Workshop 2 (June 10), and Build Day (June 12). Get your hackathon ticket here and register separately for individual workshops (included in hackathon ticket price). We are guests at Estonian Business School's beautiful campus in the heart of Tallinn. A huge thank you to EBS and TooEarly Ventures for hosting us. The hackathon Build Day is a full-day in-person hackathon in Tallinn for working professionals from Estonian companies. From 08:30 to 20:30 you work in a team of five with people from different companies and different functions (engineers, product, design, sales, marketing, ops, executives) to build a working AI agent for a real business challenge. Around 50 participants. 10 teams. Three tracks, each one a real business challenge from the Track Sponsor. You choose the track in the morning together with your new team. Teams are mixed across companies and roles on purpose. The most useful projects in a hackathon come out of combinations of people who do not normally work in the same room, so if you arrive with colleagues from your own company you should expect to be split up. Who this is for EFS members building the next generation of Estonian companiesExecutives, CTOs, VPs, and heads of product or engineering at Estonian companies leading AI adoption in their organisationTeams from sponsoring companiesGovernment and public-sector leaders working on national AI initiatives and Estonia's startup ecosystem What you'll actually do on the day You'll start the morning by joining a team and picking your track. The rest of the day is hands-on building with your team. At the end of the day your team submits a pre-recorded demo and presents what you've built on stage. Breakfast, lunch, dinner, snacks, and drinks are included in the ticket. Agenda 08:30 — Check-in and breakfast09:00 — Quick recap and setup verification09:15 — Toolset power-up: plugins, skills, MCP servers, starter repos10:00 — Challenge briefing and team formation10:30 — Build session 112:30 — Lunch and mentor checkpoint 113:15 — Build session 215:15 — Break and mentor checkpoint 215:45 — Build session 317:00 — Final submission: pre-recorded demo17:15 — Pitch prep17:45 — Open demo round at the tables18:15 — Stage presentations: 3 min demo, 2 min pitch, 1 min Q&A per team19:15 — Judging and awards19:30 — Networking20:30 — Official end You leave with Practical, applied skills with AI agents, prompting, MCP servers, and CLI tools, ready to use back at your company.New people to call from across the Estonian startup and corporate scene.A working AI agent your team built in a day for a real business problem.A three-minute recorded demo of what your team built. Prerequisites Your employer's approval to use AI coding agents at work.A paid Claude Code or Codex subscription from your employer. We strongly recommend Claude Code, but Codex works as an alternative. We do not provide any coding agent subscriptions.A computer where you have admin rights and can freely install programs. Personal or company-owned is fine, but please verify before you come that you can use the terminal and install software. Company-managed laptops with IT restrictions will block you.Enough free disk space. If your laptop is at 99% capacity already, clear some space first.A GitHub account. Your company should have a GitHub account and you should have been invited to join their org. Log in and verify before you come.A password manager. Bitwarden, 1Password, or whatever your company uses. You will be storing API keys and credentials. If you have not set up Claude Code or Codex yet, Workshop 2 on Wednesday June 10 walks through the full setup. Format In person at Estonian Business School. Bring your laptop, charger, Claude Code or Codex subscription, and GitHub account. Mentors Carmen Kivisild — Scientist by training, now CEO and founder of Elnora AI. In 5 months went from never having written a line of code to building tens of agents that run her entire company. With a forward-deployed model she now trains founders and executives to do the same. She has trained tens of scientists to adopt AI agents in biomedical labs and run hackathons and workshops across the US. Companies she has worked with see 75%+ agent adoption across their teams. Risto Jamul — CTO of Elnora AI. Coaches teams alongside Carmen throughout Build Day and handles the deep technical questions. Gerlyn Tiigemäe — AI advisor and implementation practitioner for finance teams. 15+ years in finance and data. Founder of Finnable AI, host of the AIPowerment Podcast.Mart Parve — Co-founder of Miros, ex-Bolt. Product and engineering team coach. Author of Production Ready, an open-source guide to building AI code factories.Dmitri Borohhov — Head of Product Engineering at Migrevention. Ex-Pactum and ex-Inbank. Coaches startups on product and engineering.Helen Anijalg — Co-founder of Roofit.Solar and Human Intellect. Startup and scale-up mentor, keynote speaker, and conference moderator.Kei Olbrei — Co-founder of GoWorkaBit. Founder of Kei Vibes, runs vibe coding workshops and the Vaibkoodijad community, helping non-technical people build with AI.Lembit Loo — Founder of Portata.ai. AI strategy advisor to executive teams and boards. Member of the TalTech AI Council. Host of Estonian General Intelligence.Airi Mitendorf — Development Manager at the National Institute for Health Development and Training Manager at the President Kaljulaid Foundation. 20+ years training professionals, 600+ people trained in AI adoption.Indrek Seppo — AI consultant, trainer, and data analyst. Co-founder of drone defence startup Marduk Technologies. Lecturer at the University of Tartu. Judges Mart Habakuk — Chancellor and Member of the Board at Estonian Business School (EBS). Founded and managed more than ten companies across four countries; leads EBS's infrastructure, operations, and organisational development.Carmen Kivisild — CEO & Founder of Elnora AI. Scientist by training, built an AI-agent-run company from scratch in five months and now trains founders and executives to do the same.Triin Hertmann — President of the Estonian Founders Society and angel investor in 35+ startups. Co-founder of FOMO Observer, a tech media publication covering the Estonian startup ecosystem.Lehar Kütt — Head of Corporate Banking and Member of the Management Board at Coop Pank. 20+ years in enterprise finance, including six years as CEO of KredEx and a seat on the InvestEU Investment Committee. The full series Mon Jun 8, 14:00–16:00 — Workshop 1 — AI Agents: What's Actually PossibleWed Jun 10, 14:00–16:00 — Workshop 2 — Setup (hands-on, bring your laptop)Fri Jun 12, 08:30–20:30 — Hackathon — Build Day (this event) Sponsors TooEarly Ventures — Venture studio that helps founders validate ideas, provides initial funding, and takes a hands-on approach to building startups with higher potential for success by leveraging internal expertise and resources. Estonian Business School — The only business university in Estonia. An environment where ambition, entrepreneurship, and international experience come together. Provides their gorgeous conference hall as the venue and space to build for the hackathon. PracticeGate — Professional development training centre with 2,500+ professionals trained across education, social services, and leadership. Tickets One pass covers both pre-hackathon workshops (Workshop 1, Workshop 2) and Build Day. Early Bird until June 1: 449 EUREFS Members: 299 EURFull after June 1: 499 EUR All prices include VAT. Capacity 50 in person.