Co-Founder CTO

CTO / Co FounderLocation: Stockholm, Sweden (Hybrid, regular time in the office)Our client is a seed stage institutional DeFi startup building infrastructure that lets lenders bring real world loan books on chain. They are looking for a hands on CTO / Co Founder who wants full ownership of the backend, blockchain integration and overall engineering strategy...

Vill du bygga ett produktbolag från grunden, med AI i kärnan – och samtidigt sätta tech-agendan som co-founder? Gillar du att vara hands-on i utvecklingen och trivs i snabbrörliga miljöer där beslut blir till kod snabbt? Då kanske du är Sasha Recs nya(och första) CTO som blir med att förändra hur framtidens rekrytering ser ut.Om Sasha RecSasha...

A-LIG is an early-stage AI venture building a specialised tool that automates magazine layout work and generates production-ready InDesign files. We are now looking for a Co-Founding CEO to join the founding team alongside the founder and CTO.The role is part-time and low-operational, with a focus on leadership, direction and long-term outcomes rather...

Capipal is building an AI-driven platform that helps investors analyze and evaluate investment opportunities across startups, real estate, and private markets. We are looking for a founder with a investment background - such as experience at a VC or similar.By combining structured data, qualitative signals, and AI reasoning, Capipal supports investors with...

Venture Builders and Potential Co-founders for Deep Tech Program at KTHApplication Deadline:Jan. 10, 2026Location:StockholmDiscover science with potential and help build deep tech ventures from KTHKTH Innovation and KTH Ventures are running Pioneer- a deep tech program where 10-12 research teams develop their science-based innovations across several...

**Company DescriptionBlithe AB is building an intelligent, AI-powered EV Ecosystem Assistant designed to make electric mobility smarter, more sustainable, and more human.Our platform brings together smart charging optimization, predictive insights, eco-impact tracking, and seamless vehicle connectivity into a single, intuitive experience.By helping drivers...

CTO – AI Systems & Agent Workforce (Hands-On)Location:Stockholm (hybrid)Role type:Founder-level, hands-onStart:ASAPRead this firstThis isnota traditional CTO role.If you want to:Manage peopleBuild an orgRun ceremoniesPlan hiringBe a "people leader"Do not apply.This role exists to replace those things with software.About CaireCaire is building anAI-first...

Stealth is a Marble Portfolio CompanyAbout MarbleMarble is a climate tech venture studio. We partner with scientists, engineers, and operators to create companies solving hard climate problems in the world's largest industries.Our first11 companiesare building transformative products across energy, industry, agriculture, and climate resilience. 100% have...

We have the MVP, the awards, and the investors lined up. We just need You.We areTrustyou. A proactive digital parenting app that helps families detect phone overuse and online risks with guidance and actions.The Momentum: Winners of Venture Cup & För-orten. Backed by Bling Incubator. MVP live with active users. Soft commits secured for our Seed round...

About the RoleRebaba builds circular battery systems from second-life EV batteries. Our products power buildings, industries, and charging sites while reducing costs and emissions. We design and assemble our systems in Sweden and combine hardware, embedded electronics, and control with a strong mission: democratising access to clean, affordable and modern...