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Founding Engineer für eine App, die Jugendliche schützt statt vermisst

Founder Engineer / future CTO?

Living Poets Society

Living Poets Society (LPS) ist ein junges Zürcher EdTech-Startup. Wir haben in 88 Klassenzimmern vor über 1'000 Jugendlichen gestanden — und bauen daraus jetzt eine App, die Persönlichkeitsentwicklung skaliert, ohne den Gründer. Bewusst anders als jede andere Jugend-App: kein Tracking, keine Suchtmechaniken, Kinderschutz als Architektur. Das Produkt, das man auch weglegen darf. Wir suchen unseren ersten Techniker — mit voller Gestaltungsmacht über den Stack und echter Mitgründer-Beteiligung. Du baust nicht ein Feature, du baust das Fundament. Für jemanden, der Verantwortung will statt nur einen Titel. Zürich, Teilzeit, remote möglich.

Web-based Software Development

Software Architectural Design

JOIN ChordianAI SOVEREIGN ENTERPRISE MEMORY

Systems & Lead R&D Architect

The Paradigm Shift Big Tech wants enterprise intelligence in the cloud. Enterprises want absolute architectural control. Chordian.ai is a Swiss-born, zero-trust sovereign memory layer built entirely for the enterprise agentic age. We capture, govern, and make an organization's institutional knowledge instantly retrievable—without that data ever leaving the boundaries of their air-gapped infrastructure. We provide a strict, verifiable full-offline guarantee for the entire data-refining pipeline. Backed by live production systems and an elite advisor network, we are looking for a technical force to step into a fully operational product, take radical ownership, and co-steer Chordian's roadmap. Your Strategic & Technical Mission Algorithmic Optimization: Advance our core indexing engine to process, query, and structure high-velocity enterprise data streams across massive, disparate datasets. System Orchestration: Evolve our ontology engine to seamlessly unify multi-modal schemas and databases into a single, high-performance semantic retrieval layer (<400ms multi-hop graph queries). Deterministic State Control: Refine write-time conflict resolution protocols to handle and resolve data contradictions locally, prior to any model inference. Strategic Leadership: Co-author the technical roadmap, vigorously defend our security and architecture moats for tier-1 institutional clients, and scale a elite engineering culture. What You Bring to the Seat Academic Edge: Late-stage student (4th year BSc, MSc) or PhD candidate/graduate from ETH Zurich in Computer Science or a deeply quantitative field. Systems Mindset: Deep command of isolated network infrastructure, air-gapped storage paradigms, and heavy hardware/VRAM resource optimization. Data Structure Rigor: Practical or theoretical fluency in complex graph topologies, custom vector spaces, spatial indexing, and deterministic pipelines. Execution Drive: The leadership maturity to guide technical execution and ship production-grade code into high-stakes environments. What We Offer Significant founder-level equity stake aligned with operational ownership. The opportunity to build un-wrappable, foundational sovereign architecture—no shallow wrapper APIs. Direct integration into the Swiss deep-tech ecosystem alongside top-tier advisors. #Systems & Lead R&D Architect — Sovereign Enterprise Memory (Co-Founder Track)

20/20 Technologies

Join early as Founding Engineer at a Promising Startup

Founding Engineer

House of Charts AG

Über House of Charts: House of Charts entwickelt KI-basierte Anwendungen zur Entlastung des Gesundheitspersonals und zur Verbesserung der Patientenversorgung. Wir befinden uns an der Schnittstelle von Deep Tech, MedTech und Datensicherheit. Als junges, ambitioniertes Team wollen wir nachhaltige und ethische Technologie für den Gesundheitssektor entwickeln – mit echtem Impact. Was wir suchen: Wir suchen einen aussergewöhnlichen Founding Engineer mit tiefem technischen Verständnis, Unternehmergeist und ausgeprägten Softskills. Diese Rolle ist ideal für jemanden mit einem MSc oder PhD in Informatik und einem Hintergrund in maschinellem Lernen, Softwareentwicklung und IT-Sicherheit sowie Arbeitserfahrung mitbringt. Sie sind in der Lage, komplexe Full-Stack-Anwendungen zu bauen, zu skalieren und zu sichern – und bereit, über den Tellerrand hinauszublicken. Sie haben Erfahrung mit der automatischen Zusammenfassung medizinischer Texte und kennen sowohl generative als auch extraktive/discriminative KI-Modelle. Sie sind mit moderner Infrastruktur, agilen Methoden und Kundeninterviews genauso vertraut wie mit Docker und Kubernetes. Ihre Aufgaben: Entwicklung und Absicherung cloudbasierter, verteilter Software-Architekturen mit Fokus auf medizinische Textverarbeitung Umsetzung modernster KI-Verfahren (generativ und extraktiv) für reale Gesundheitsanwendungen Aufbau von Data- und MLOps-Prozessen für skalierbare KI-Lösungen Unterstützung des Gründerteams in technischen und operativen Bereichen – hands-on und flexibel Übernahme von Führungsverantwortung innerhalb des ersten Jahres Was Sie mitbringen sollten: MSc oder PhD in Informatik oder verwandtem Bereich Forschungserfahrung im Bereich automatischer medizinischer Textzusammenfassungen mit in generativer und extraktiver KI Fundierte Kenntnisse in der Netzwerkarchitektur und im Management von Cloud-Infrastrukturen Erfahrung mit Full-Stack-Entwicklung und verteilten Architekturen Erfahrung mit Containerisierung und Orchestrierungstechnologien wie Docker und Kubernetes Ausgeprägte Fähigkeiten in der Verwaltung von Infrastruktur mit Tools wie Terraform Erfahrung mit der Verwaltung von Datenbanken und verteilten Systemen Ausgeprägte Fähigkeiten in Cloud-Deployment und Cybersicherheit Fliessende Deutsch- oder Englischkenntnisse; zusätzliche Sprachkenntnisse sind von Vorteil Sehr gute Kenntnisse in: Deep Learning: PyTorch, TensorFlow, etc Backend: Flask, FastAPI, etc Datenbanken: PostgreSQL, MongoDB, etc Frontend: React/Next.js, Vue.js, etc MLOps: Weights & Biases, MLflow, etc DevOps: Docker, Kubernetes, etc Cloud: Azure, AWS, etc OS: Linux Erfahrung mit agiler Produktentwicklung und Projektmanagement Starkes Gespür für Kundenbedürfnisse und Erfahrung in Produktvalidierung Analytisches Denken, wissenschaftliches Arbeiten, Marktverständnis Teamfähigkeit, Zuverlässigkeit und Eigeninitiative Was wir bieten: Schlüsselrolle beim Aufbau eines gesundheitsorientierten Tech-Startups mit hohem gesellschaftlichem Impact Direkte Zusammenarbeit mit den Gründern und aktiver Einfluss auf Technologie, Strategie und Kultur Hoher Gestaltungsspielraum und Verantwortung von Anfang an Aussicht auf Führungsrolle und Beteiligungsoptionen Eine Arbeitsumgebung, in der Innovation, Vertrauen und Teamgeist im Mittelpunkt stehen, direkt an der ETH Zürich.

Firmware / IoT Engineer (Part-time ~20%) — Zürich

Firmware / IoT Engineer

Company: E.Ride GmbH | Location: Zürich (office near Hardbrücke), on-site | Type: Part-time, 1 day per week (20%/8h) | Level: Junior to mid-level | Website: www.eride.africa | Compensation: CHF 700/month for 20% About us E.Ride is a young Zürich-based company building battery packs and electric motorcycles for emerging economies, with a focus on East Africa. We work at the intersection of renewable energy, e-mobility, and IoT, and our projects are built to have real-world impact in the markets we serve. We are a small, international team, and we run at startup pace: hands-on, fast-moving, and occasionally a little chaotic in the best way. We are looking for a firmware and IoT engineer to take over and grow the embedded and connected-systems work on our vehicles and battery packs. What you will do • Develop and maintain embedded firmware for our battery packs, battery management, and vehicle electronics, primarily in C/C++ on microcontroller platforms such as ESP32 and Arduino. • Improve and maintain our IoT telemetry pipeline: collecting data from vehicles and batteries in the field, transmitting it, storing it (InfluxDB), and visualising it in dashboards (Grafana). • Prototype, test, and debug on real hardware, including ESP32 and Raspberry Pi setups. • Get hands-on with the hardware itself: soldering, wiring, assembling and modifying prototype boards and test rigs, and bringing up new hardware alongside the firmware that runs on it. • Work with the communication interfaces used across our systems (for example UART, and where relevant CAN, I2C, or SPI). • Support the connection between our hardware and our backend and cloud systems. • Help us understand how deployed units are performing in the field and contribute to remote diagnostics and improvements. • Document your work and share knowledge within a small team. • 3D printing of prototypes. What you bring — Required • Ongoing or completed studies in electrical or electronic engineering, computer engineering, mechatronics, computer science, or a related field. • Hands-on experience with microcontrollers such as ESP32 or Arduino. • Comfort working directly with hardware: basic soldering, wiring, and assembling or reworking prototype boards. If your soldering is rusty, that is something you can sharpen with us. • Some programming experience, ideally in C or C++. • A self-directed, curious mindset: the willingness to try, fail, and try again is more important to us than a long list of credentials. • Independent! You need to set your own goals, get materials — you won’t be micromanaged. • English (spoken and written); German is a plus. Nice to have (you can also learn these with us) • Familiarity with embedded development tools such as PlatformIO. • Experience with time-series data tools like InfluxDB and Grafana. • Exposure to communication protocols such as UART, CAN, I2C, or SPI. • Version control with Git. • Some understanding of battery systems or battery management. • Basic backend or cloud concepts (for example MQTT or REST APIs). • A genuine interest in e-mobility, renewable energy, and emerging markets. Motivation and willingness to learn matter more to us than prior experience. If you have not touched some of the tools above but you are keen to pick them up, that is fine. What we offer • A part-time role of roughly one day per week (20%), with flexible working hours you largely arrange yourself. • Compensation of CHF 700 per month for a 20% position. • A young, international team and real experience in a startup environment. • Purpose-driven projects and a central location in Zürich. • The option, if you are interested, to travel and work from our office in Zambia during semester breaks or for a longer internship. We can arrange that. How to apply Send us a short CV and a few sentences about why this role interests you to [email protected]. We will get back to you. If you have any questions before applying, just reach out.

Embedded Systems

Internship: AI Application Development in Finance (6 months)

This is, at its core, an AI and application-development role that sits at the center of our investment business. Over six months, you will design, build, and embed AI-driven tools and applications that make our investment professionals faster and sharper - working across different asset classes (fixed income, equities, private equities and beyond) and business lines. You will collaborate directly with investment professionals on the daily management of our funds, learn how public and private markets investing works in practice, and ship tools that go into real, everyday use. Typical responsibilities include: - Design, build, and deploy AI-based tools and applications across our investment workflows - spanning research, data analysis, reporting, and portfolio monitoring - for multiple asset classes and business lines. - Apply large language models, machine learning, and automation to real investment problems, turning ideas into working applications that investment teams use every day. - Streamline and automate recurring processes, including periodic reporting and performance-estimation tasks across our funds. - Partner with investment professionals across asset classes and business lines to identify high-impact use cases and translate them into practical AI solutions. - Build and automate tools that support portfolio management, our CRM, and operations, streamlining recurring workflows across the firm. We are a small, dynamic team, so applicants need to be self-driven, well-organized and show flexibility to support in different areas, as tasks arise.

Artificial Intelligence

Application Development Foundation

Backend-Webentwicklung

Database-driven Web Applications

ENTREPRENEURSHIP INTERNSHIP (6 MONTHS)

ENTREPRENEURSHIP INTERNSHIP (6 MONTHS)

Dagsmejan is an innovative Swiss direct-to-consumer brand on a mission to improve sleep—and, with it, people's health and wellbeing. Inspired by the advancements in performance sportswear, we have partnered with leading experts in sleep science, materials science and textile engineering to reinvent what we wear closest to our skin for one-third of our lives. The result is a new category of scientifically engineered sleepwear that helps people sleep more comfortably and recover better. Today, Dagsmejan serves customers in more than 80 countries and has received over 25,000 five-star customer reviews. Our growth has also been recognised internationally: the Financial Times ranked Dagsmejan among Europe's 1,000 fastest-growing companies, placing us #48 overall, #1 in Apparel & Fashion, and #1 in Switzerland. To support our continued growth, we are looking for a Entrepreneurship Intern to join us for a six-month programme. Working closely with our management team, you will gain hands-on experience across the different functions of a fast-growing international D2C business. What you'll gain • Hands-on experience in a fast-growing international consumer brand. • Broad exposure to business development, marketing, e-commerce, retail and operations. • Direct collaboration with experienced entrepreneurs and a highly committed team. • Meaningful responsibilities from day one. What you'll be working on As an Entrepreneurship Intern, you'll support a broad range of commercial and operational topics. Depending on business priorities, your work may include: • Supporting business development activities and researching potential partnerships across different markets and channels. • Assisting with marketing campaigns and commercial initiatives. • Helping identify, prepare and operate pop-up stores and other retail concepts. • Conducting market research, competitor analysis and customer research. • Preparing presentations, reports and analyses for the management team. • Supporting cross-functional projects across different parts of the business. • Contributing wherever needed and gaining practical insight into the day-to-day operations of a growing international e-commerce company. Who we're looking for We're looking for someone who is curious, proactive and enjoys getting things done. Ideally, you bring: • A Bachelor's or Master's degree (or are close to completing one) in Business Administration, Economics or a related field. • Initial practical experience through internships, student jobs or entrepreneurial projects. • A hands-on mentality and the willingness to take ownership. • Strong analytical and organisational skills. • The ability to work independently while collaborating effectively with others. • Excellent written and spoken English; German is an advantage. • Good knowledge of Microsoft Office; experience with e-commerce platforms, digital tools or AI applications is a plus. • A genuine interest in entrepreneurship, innovation, health and consumer brands. Why Dagsmejan? Building a successful consumer brand isn't just about strategy—it is about solving problems every day, working across different functions and turning ideas into reality. During this internship, you'll experience exactly that. You'll contribute to real projects, work alongside experienced entrepreneurs and gain practical insights into what it takes to build and grow an international premium brand. If you enjoy variety, taking initiative and learning by doing, we'd love to hear from you. Interested? Please send your application to [email protected]. If you have any questions, don't hesitate to get in touch—we look forward to hearing from you.

1-to-1 Marketing

Product Development / Co-Founder

Drink Specialist / Product Development / Co-Founder

sawastea, Lucerne, Switzerland · Co-Founder · Equity We're two people testing out an idea: Sawastea, an authentic Thai Iced Tea (Cha Yen). We haven't founded a company yet — right now it's small home-batches and figuring out if there's a real market for it. So far it's one person on marketing & sales, one on ICT & design. What we're missing is someone who genuinely knows food/beverage product development — that's you. What we're looking for: A co-founder to take ownership of product development: bringing real expertise to our recipe, formulation, and eventually the path toward an RTD product. You don't need to know Thai tea specifically — but you should genuinely come from this field, not be learning it alongside us. What you'd work on: - Recipe refinement and eventually scaling from home-batch toward a producible format with a suiting partner - Reformulation questions: e.g. moving from synthetic colorants to natural alternatives without losing color/stability - Shelf-life and food safety basics: pasteurization, preservation, working with a milk-infused tea - Helping us think through what it takes to eventually work with a co-packer - Keeping an eye on Swiss food law relevant to composition and labeling You might be a fit if you have: - A real background in food science, beverage technology, or F&B product development — studies or hands-on industry experience - Genuine comfort with hands-on recipe work: tasting, iterating, adjusting — not just theory - Interest in joining as an co-founder from an early, unproven stage — this is still a test, not a running business yet What we offer: - Co-founder equity and real influence on where this goes - An honest, early-stage project: we've done some groundwork (food law basics, batch records, a first pass at financials) but there's no funding, no company, no guarantees yet - Two people who take this seriously and want a third who can actually judge the product side, which we can't yet. - Start Up experience and passion for entrepreneurship. If this sounds interesting even without a perfect match on paper, reach out and let's talk.

Food & Beverage

Immersive Wellness - Marketing Co-Founder

Wellness Marketing Co-Founder

Immersive Wellness

We're looking for a digital marketing-focused co-founder to help build and scale an immersive wellness brand that combines ancient wisdom with modern innovation. This role will lead brand growth through digital marketing, performance strategies, content, community building, and customer acquisition while shaping the overall brand presence. The ideal partner is passionate about wellness, understands how to build impactful consumer brands, and can transform meaningful experiences into a globally recognized movement. Message on LinkedIn: https://www.linkedin.com/in/stefan-hodel/

Acquisition Marketing

B2B Marketing Strategy

Digital Marketing

Content marketing

Email Marketing

Engagement Marketing

Join us in advancing precision oncology

Quality and Regulatory Affairs Manager

Oncobit develops CE-IVDR-certified molecular diagnostics for precision oncology. As we continue to expand our product portfolio and clinical evidence, we are looking for an experienced Quality & Regulatory Affairs Manager to strengthen our team in Schlieren.

Regulatory Affairs

Software CTO

About the Role We are looking for an experienced software engineer to own Riverkin’s technical roadmap end-to-end, including working hands-on on the software component. You will take responsibility for creating a reliable client-facing product, which will be mainly an enterprise software that is fed with data (from hardware we build ourselves) and models (which we also build ourselves). We already have several manufactured sensor prototypes and a software MVP deployed in the field with clients. Now we need someone who can take what exists, challenge it where needed, and define a coherent, scalable path forward with a customer facing approach and without overengineering or starting from scratch unnecessarily. You should think like a builder, not an optimizer. We need someone who has taken products from 0 to 1 and knows how to move fast without losing track of the overall structure. What You'll Do Create Clarity and Momentum Bring structure to ambiguous problems and drive them to execution Make decisions and move forward without waiting for perfect information Lead, shape and manage the technical team You will be a leader and guide the technical team so that everyone has enough context for their work, ownership of their work, and a growth path You will decide what to build in-house, where to use external support, and how to keep engineering quality high as the software and sensor deployments scale. Own the technical roadmap Work with the product team to obtain product requirements and translate them into a technical roadmap You will align the roadmap with our current stage Decide when to iterate, fix or rebuild and explain why Create a path to scale and industrialization Own, Build, and Industrialize the Software Architecture Define and build the first customer-facing platform where customers can access, understand and act on our data. Evaluate the current backend and decide what to keep, fix, or redesign (today: a Python backend, AWS provisioned with Terraform, SQLite, and a JavaScript frontend) Make practical decisions on UX, APIs, and structure to get to a usable MVP quickly Lead development of our cloud backend (primarily AWS and GCP based) Build and refine data pipelines from sensor ingestion to usable outputs Not only design, but remain deeply involved in implementation Lead debugging and debug yourself Find the balance between scalable architecture and pragmatic solutions, aligned with our stage (product and company) Bring the final product to commercialization/industrialization Work with the hydrology and hardware teams Translate customer needs in product development direction, both hardware and data side You will support the hardware team to bring their hardware to industrialization You will lead and define the IP roadmap together with the hardware team You will work with the hydrology team to define the model outputs and how to represent the outputs in the software Who You Are You have built and shipped enterprise products from the ground up in a startup or similar environment. You are customer facing, translate customer needs into product and architecture decisions. You are both a hands-on developer and an architect. You have worked closely with hardware-software systems. You have strong intuition for pragmatic software architecture at an early stage. You can turn messy inputs into clear technical directions. You care about building systems that actually work in the real world. You communicate clearly with technical and non-technical teammates. Technical Requirements Strong experience building cloud-based systems (AWS required) Proficient in modern backend development (e.g. Python or Node.js) Experience designing and building data pipelines and APIs Comfortable building simple frontends for MVPs Experience working with real-world data systems (IoT, data platforms, or similar is a strong plus) 7 years of experience building and shipping software products 3 years of experience managing and leading a team Comfortable with infrastructure-as-code (we use Terraform) and SQL Nice to Have Experience building data-as-a-service or analytics platforms Previous founder experience Role Details Commitment: 100% FTE Compensation: competitive base salary plus meaningful equity, depending on experience Location: 4 days per week in Zurich office (with one day flexible/remote) Starting date: by November 1st 2026 at the latest Work-permit: Swiss/EU nationals with a work permit are prioritized since we do not have the capability to sponsor a work permit for third-country candidates Relocation: We do not sponsor relocation Benefits: 25 days of vacation About Riverkin We are a well-capitalized startup building real-time sensing and data infrastructure for rivers. Our own field-deployed sensors collect live water-level and sediment data, while our platform turns that data into decision-ready insights for customers. We work across two core use cases: hydropower, where better sediment data can support flushing, asset protection and compliance; and flash-flood risk, where local river data can help hydropower, first responders and municipalities understand what is happening before conditions become critical. We are a small, hands-on Swiss startup working across hydrology models, sensing products, software and market development with real customer deployments. To apply: Email a short motivation and your CV to [email protected]. If you have them, add links to things you’ve shipped: your Github profile, a portfolio, or a couple of lines on a 0-to-1 product you owned (optional, not required). Our process has three stages: 1) a screening call, 2) an online 45min interview, and 3) a 2h workshop with the founders on-site in Zurich.

Software Engineers