(196) Startup jobs for Location: Remote - Joinup

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Remote

Paid

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Looking for a Technical Co-Founder (CTO) for Primerus AI

I'm building Primerus, the AI system that builds and runs the entire digital presence for businesses in regulated industries (SMEs). Here's what makes it work: most marketing tools hand you a dashboard and leave you to figure it out. Primerus is the opposite. Our AI generates, operates, and continuously optimizes everything - brand, website, content, SEO/GEO, social, virtual twins, and customer communication - autonomously. The owner focuses on their craft; the system grows their brand in the background. We started in the €2B+ DACH aesthetics market, where trust and compliance decide everything. In 8 months, fully bootstrapped, we've reached €120k ARR with 10+ paying customers. The wedge is proven. In the long run, we scale across every regulated industry where reputation is the product. I bring the domain expertise, the go-to-market engine, and real traction. What I'm looking for is a technical co-founder to own the autonomous AI architecture and build this into a category-defining company with me.

Co-Founder & Head of Growth

Co-Founder & Head of Growth

**Looking for a B2C Growth Co-Founder - (parenting, EdTech, pre-revenue)** I'm Nicolas, solo founder of Belxi, a service that recommends personalized, screen free activities for kids aged 3 to 12 matched to the child interest, parents objective, age, mood, energy level and what's available. **What already exists:** A functional prototype, a propietary recommendation algorithm, a feedback ann onboarding system, a website with SEO infrastructure, and a small instagram community. Currently looking for families to test the service. **What's missing:** The person who makes people know it exists. Someone who knows how to build an audience, design acquisition loops and catch early user testing in the anglophone markets. **What I offer:** Meaningful equity with standard 4 year vesting and 1 year cliff, a working prototype (not just a deck), full transparency on where we are (idea validated, product validation stage on going, no revenue yet). I have a de-risked approach about this journey and not willing to go into several years of work without salary. **What I'm looking for:** Demonstrated experience in B2C growth or communicaty building, interest in EdTech and parenting space, ability to work without immediate salary, remote friendly. Test and iteration product experience is a must. English native speaker or C2 level.

Social Media Optimization (SMO)

Application Testing

Acquisition Marketing

Digital Product Development

Looking for a Long-Term Online Business Collaborator (EU)

Looking for a Long-Term Online Business Collaborator (EU)

Hi everyone, I'm looking for a reliable long-term collaborator to help support my online business. -Requirements: Male 25+ Based in the EU Available for 1–2 hours per day -Compensation: $100 per month to start Opportunity for higher pay after a few months based on performance and collaboration I'm looking for someone dependable, easy to communicate with, and interested in a long-term working relationship. If you're interested, please send DM me: A short introduction about yourself Thank you.

Computer Assistance

🚀 Build the future of secondhand shopping with Circlin ♻️

Founding Backend Engineer

We are building the one-stop shop for secondhand Swiss fashion - a video-first, mobile-first marketplace that makes resale easier, safer, and more engaging. We’re looking for a Founding Backend Engineer to own the backend foundations behind orders, payouts, search, messaging, notifications, integrations, and marketplace workflows. This is a high-ownership, equity-first role for someone who wants to shape the architecture, engineering culture, and trust layer of an early but already released product. Initial compensation is 2–3% equity before fundraising, with the expectation to transition to salary + equity after a raise.

Master's Student (Frontend + Backend) wanted – EdTech Startup hey ema 🇨🇭

Full-Stack Developer (Working Student) – EdTech Startup hey ema

educamatt altermatt

We're Lisa & Samira, founders of hey ema – a Swiss EdTech app for primary schools (grades kindergarten–6), aligned with Lehrplan 21 (the Swiss national primary school curriculum). We're piloting with five schools and currently founding our AG (Swiss corporation). Goal: national rollout by January 2027. hey ema is built by teachers, for teachers – iteratively, close to classroom reality, feature by feature. You are the technical bridge that turns our mission into a real product – together with David (Senior AI Engineer, ETH) and Konstantin (Digital Education Expert, PHSG). 🛠️ What you'll build – First production version of our web app – built to last, not patched together – Multi-tenant architecture with clean data separation across schools, classes and user roles – Role-based access control (RBAC) – compliant with Swiss nDSG and GDPR from day one – Swiss hosting (e.g. Exoscale, Nine, Switch) – data stays in Switzerland – CI/CD pipeline, structured Git workflow, automated testing – API design with interfaces for LLM-based AI features 💻 Stack Deliberately open – we'd love a well-reasoned proposal from you. Experience with React / Next.js, Node.js or Python, PostgreSQL and Docker / Kubernetes is a plus. PWA or caching experience welcome. 📐 What we offer – Currently enrolled in a Master's programme in Computer Science, Software Engineering or a related field – ~1.5–2 days/week, compatible with your Master's schedule and flexible – Hybrid collaboration, Zurich area preferred – Real say in architecture and technology decisions – Equity conversation possible · Senior consulting support in the background Contact: Lisa Altermtt CEO educamatt [email protected]

Applications Software Development

Enhanced AI capabilities for robots

Robotics project lead

When you join the Hoursec team, you join a brilliant group of experts who are making the world of Artificial Intelligence sustainable, with the right technology and shaping the future of humanity with an open, interdisciplinary mindset. We are building a fascinating team, ranging from Astrophysicist to AI experts and just about everything in between! We value interdisciplinary minds and outside-the-box thinking more than anything, we are innovative and creative and this makes us very collaborative and multicultural with a highly scientific and entrepreneurial environment. Together, we will take your skills and passions to make a paradigm shift in Artificial Intelligence, and with this, we are building sustainable businesses for our customers and humanity in general. Hoursec was founded on the idea that using the energy efficiencies of the brain, is necessary to keep the exponential growth that our technological society requires. We are making this call for people who are looking for something more than a job or a career, our call is for precise, outstanding engineering that sets people and the planet first. The Position As a robotics project lead, you will be a key member of our company expansion into new markets. You are expected to perform tasks related to early stage scaling developments, product tasks, which is key for the company to be able to test and validate technologies, products and services. The position will also be related to pilot projects with customers where the project lead will address strategic partnerships. Skills: Electrical Engineering, computer science, robotics, FPGA assembly.

FPGA prototyping

Computer Science

Founding AI / Full-Stack Engineer (AI Systems, Early-Stage Build)

Full-Stack Engineer (AI Systems, Early-Stage Build)

We’re building a next-generation platform focused on improving how AI systems are evaluated and deployed in real-world environments. This is an early-stage product with a working direction, where we’re now focused on execution turning structured workflows, user flows, and system logic into a stable, usable platform. We’re looking for a strong technical builder who can take ownership of system design and implementation, not just individual features. What you’ll work on: * Designing and building a full-stack system (frontend + backend) * Structuring backend logic and data flows (Supabase / Postgres) * Implementing user flows and dashboards * Integrating APIs and handling real-time data * Ensuring the system is stable beyond demo environments We’re looking for someone who: * Has built and shipped real products end-to-end * Can work with ambiguity and define structure * Thinks in systems, not just components * Prioritizes reliability and clean architecture * Can move fast without overengineering Tech (current stack): * React / frontend frameworks * Supabase (auth, DB, backend logic) * API integrations * Optional: experience with AI systems / LLM workflows

API Development

Sales Person

CSO / Sales Freelancer / Sales Whisperer

I am looking for multiple sales oriented people who are willing to either work commission based as freelancers or equity based full-time to accelerate current sales processes of multiple products and services in the portfolio. contact via mail or DM [email protected] +41783212221

Customer-focused Sales

Fundraising & Partnership Manager (ehrenamtlich)

Fundraising & Partnership Manager (ehrenamtlich)

SEET – Support Education, Empower Together ist ein gemeinnütziger Verein, der Geflüchtete unterstützt, die ihre Ausbildung aufgrund ihrer Flucht unterbrechen mussten. Unser Studienförderprogramm bietet persönliches Mentoring, situationsbezogene finanzielle Unterstützung sowie Workshops und Netzwerkaufbau, um Geflüchteten Zugang zu Schweizer Hochschulbildung zu erleichtern. Unser Ziel ist es, nachhaltige Wirkung zu erzielen, indem wir Geflüchtete auf ihrem Weg zur Selbstbestimmung in der Schweiz stärken. Besonders berücksichtigen wir die komplexen Herausforderungen, denen insbesondere Frauen begegnen, die häufig intersektional benachteiligt sind – als Frauen, Migrantinnen und Geflüchtete. Gleichzeitig unterstützen wir Menschen aller Geschlechter.

Campaign Execution

Corporate Partnerships

Co-Founder (Technical) - AI Automation for Swiss SMEs

Technical Co-Founder / CTO

Swissflow.ai automates repetitive administrative work for Swiss SMEs - invoicing, scheduling, customer communication, document handling - using AI agent workflows. Pre-seed, founder-led, active client acquisition underway. What is needed: A technical co-founder with production engineering depth - Python, LLM/agent frameworks, backend infrastructure, security, cloud deployment. Someone who can own the architecture, make deployments bulletproof, and build systems that work reliably in real business environments. About me: Proven business exec who has built startups, has been trading in financial markets globally and been at the forefront of technology all my professional career. I actively use agentic coding tools, have built a full algorithmic trading bot, and have hands-on experience with AI workflow design, software integration, and automation architecture. I can conceptualise, prototype, and ship working systems. How we'd work together • You: architecture, infrastructure, security, production reliability, scaling • Me: client acquisition, sales, commercial strategy, product direction, prototyping and AI workflow design This isn't a technical vs. non-technical split - it's a depth split and flexible. I work at the intersection of business and technology. You go deep on engineering. Together we cover the full stack, end to end. As we scale, we build the team around us - but this is how we start. Compensation This is a founding role, not a job. In return, you earn an increasing equity stake until revenue supports a salary. If you want to build something and own a meaningful piece of it, let's talk.

Artificial Intelligence

Back-end Operations

Cloud Applications

Application Security Architecture

System Architecture