Backend Engineer (all levels)

FarmAct

WIR BEI FARMACT Möchtest du Software entwickeln, die reale Abläufe verändert und Impact hat?  Interessiert es dich, landwirtschaftliche Betriebe und Lohnunternehmen dabei zu unterstützen, effizienter zu arbeiten und fundierte Entscheidungen mit ihren Daten zu treffen?  Bei FarmAct entwickeln wir eine All‑in‑One‑Software, die analoge Prozesse im Agrar‑Alltag ablöst und alle Betriebsbereiche miteinander vernetzt. Gemeinsam mit unseren Kund*innen setzen wir Standards für die Landwirtschaft von morgen – praxisnah, messbar und mit echtem Mehrwert. DEIN BEITRAG IM ALLTAG: * Du entwickelst neue Funktionen im Frontend unserer Cross-Plattform-App mit modernsten Web-Technologien (u.a. React, Capacitor, Firebase) * Durch Code-Reviews hilfst du deinem Team und erhältst auch selbst wertvolles Feedback * Bestehende Funktionalitäten verbesserst du sowohl mit Blick auf Performance als auch auf Design * Du entwickelst Backend-Funktionalitäten in Nest.js oder serverless mit Firebase Functions WAS DU DAFÜR MITBRINGST: * Du studierst (Wirtschafts-)Informatik oder etwas Vergleichbares * Du brennst für Web Development und hast erste Erfahrung mit Webtechnologien gesammelt * Du willst lieber wirklich etwas bewegen statt ein Rädchen in einer großen Maschine zu sein * Herausforderungen sind dir lieber als Schema-F-Aufgaben * Du bevorzugst eigenständiges Arbeiten an einem Projekt gegenüber kleinteiligen Anweisungen * Du bist flexibel und fühlst dich in einem agilen Umfeld wohl WARUM WIR? * Echte Produktverantwortung und sichtbarer Impact statt theoretischer Use Cases Weil du bei uns nicht nur Aufgaben abarbeitest, sondern ein Produkt aktiv mitgestaltest, das täglich im Einsatz ist und echten Mehrwert schafft. * Zusammenarbeit und Kundenfokus, die man im Alltag merkt Wir entwickeln praxisnah und im engen Austausch mit unseren Nutzer*innen – gemeinsam im Team und nah an den realen Anforderungen. * Start‑up‑Mentalität, die man spürt Flache Hierarchien, kurze Entscheidungswege und viel Gestaltungsspielraum sorgen dafür, dass Ideen schnell Realität werden. * Eigeninitiative erwünscht Gute Ideen werden gehört, ausprobiert und umgesetzt – Verantwortung zu übernehmen ist ausdrücklich gewünscht. * Flexibilität als Teil unserer Arbeitsweise Hybrides Arbeiten, flexible Arbeitszeiten und eine faire Work‑Life‑Balance helfen dabei, Arbeit und andere Lebensbereiche gut zu vereinbaren. * Startup Perks & Benefits Faire Rahmenbedingungen gehören für uns dazu: Jobticket, betriebliche Altersvorsorge, Wellpass (EGYM), ein frei einteilbares Weiterbildungsbudget, Sachbezugskarte – und ein zentrales, modernes Office, in dem man gerne zusammenkommt. Regelmäßige Team-Events und unser jährliches Offsite schaffen Raum für Austausch, Inspiration und ein starkes Miteinander.

Anima

I quit medicine because I kept watching patients die needlessly, for avoidable reasons. In almost every case, the science and the clinicians were fine. It was the system around them that failed: the way information moved, the way decisions got routed, and the way fragmented teams and fragmented data turned solvable problems into tragedy. Our mission is human wellbeing, and we're focusing on the breakthrough technology of personalised medicine. Since the beginning, our proprietary insight has always been that the company to create a true active learning data engine with a loss function against human wellbeing would be the one to crack it, becoming one of the most impactful companies in the world as a result. We're now in 1,100+ clinics, across 4 product lines, serve >20% of the UK population, and have solved >5.7 million patient cases in the past 12 months alone, saving an estimated 8,600 lives. We are cash flow positive, growing fast, and have a tight crew of ~35 people. Multiple trillion-dollar companies will be built in healthcare over the next two decades, and we intend to be one of them. We have a knights of the round table culture with a flat hierarchy, where we empower builders to have outsized impact on millions of lives, and where we collaboratively converge on the optimal action without dogma or ego. We're all here to serve a greater mission than ourselves. The closest analogy for our culture is probably Firefly (the TV series): a small crew on a ship at the frontier, each person exceptional in a specific way, deeply loyal to each other and the mission, resourceful under constraints, and having a genuinely good time doing something that matters. We're carefully curated, lean, and wholeheartedly in. If you want your skills to be at the highest possible stakes, you belong at Anima. Your work here will save lives. - Shun Long before the "vertical AI" craze, we were obsessed with active reinforcement learning—a niche field in 2021 that the world, pre-ChatGPT, largely ignored. Our trajectory has been unwavering since our YC application: achieving the "holy grail" of personalized medicine and deep phenotyping. This is powered by our proprietary active learning architecture - a system we codified in a 2021 patent that anticipated the Sparse Mixture of Experts (MoE) and active learning loops now foundational to modern LLMs. While others are just arriving at the party, we’ve spent years executing a plan to build what is now one of the world’s largest, highest-quality labeled datasets. We’re looking for someone who * Has a track record of relentless shipping. * Has proven ability to navigate ambiguity and tackle novel technical challenges from conception to production. * Has strong CS Fundamentals. A deep understanding of data structures, algorithms (e.g., breadth-first search), and first-principles thinking to solve complex product problems. * Is expert-level in TypeScript (TS). Proficiency in building type-safe, scalable applications. You are a full-stack expert in the JavaScript/Node.js ecosystem with a pragmatic approach to tech debt and tool selection. * Has hands-on expertise with React, Angular, or Node.js, with the ability to move between frontend and backend as needed. * Has experience architecting on AWS (specifically Lambda, DynamoDB, SQS, and CloudFormation) or a proven "hungry to learn" mindset regarding serverless infrastructure. * Is disciplined towards best practice version control, CI/CD and code extensibility. Values interface safety through dimensionality reduction at interfaces. * Is obsessive about UX and optimises for this over arbitrary technical goals. * Is driven, impatient to grow and wants their shot to change the world. We hire at all levels: our team has new grads and product leaders with 20 years experience. What to expect in the role * You’ll work with an incredibly smart team. Like Michael who built a working CPU from logic dates at age 16 and co-founded YC-backed Embark Trucks, the first self-driving vehicle on Canadian roads. Or Souradip, who built an acoustic fall detector using on-device deep learning; he’s also an MB/PhD from Cambridge who’s published in top medical journals. * You’ll own your projects end to end and ship fast. Like Alex who built ‘Slack for medical teams’ supporting 1000s of channels per organisation and a real time single source of truth for patient data in 4 weeks. Or Dennis who built and shipped a lightning fast cloud document library for clinics in a few days with <100ms traversals through preloading. * You’ll work on a well-established stack that’s already highly scalable, cost effective, secure and performant with minimal to zero ops. * You’ll learn new technologies; whatever is needed to solve the problem. We are tech agonistic, and collectively choose the best tools for the job. We’re constantly looking to maximise our productivity and minimise what we call “discounted dev time cost” for shipping features. Our current stack We have 2 separate fully functional web apps in prod: one for clinical users and one for patients. Angular, React and Electron, Mixpanel/Posthog for analytics, a fully serverless backend in AWS (Cognito, Appsync GraphQL, Lambda, DynamoDB). We have good functional & unit test coverage and CI/CD.

Proton

Join Proton and build a better internet where privacy is the default Proton was founded in 2014 by scientists from CERN on a simple truth: privacy is a fundamental human right. Since then, we’ve built the world’s largest encrypted email service (Proton Mail) and expanded into Proton VPN, Proton Drive, Proton Pass, and Proton Calendar—tools used by millions globally to protect their freedom, fight censorship, and keep their data safe. In some situations, Proton has literally helped save lives! We are profitable, independent (no VC control), and selectively hire from the top ~1% of applicants. Our 500+ team members across 50+ countries come from leading organizations and elite academic backgrounds. We move fast, keep hierarchy light, and prioritize impact over optics. If you want to do meaningful work with exceptionally high-caliber people, this is it. Join us and do work you can truly be proud of. Check our open-source projects here! Purpose of the role As a Backend Engineer in Marketing Technology you will be responsible for building our key components of our marketing technology stack. You will drive software design and implementation likewise while helping a newly formed cross-functional team. You will interact with key stakeholders in the Business Units, Software Development, Marketing, Sales and more to understand requirements and use cases while keeping the bigger picture in mind. If you’re a self starter and results-driven backend engineer, and you thrive in a fast-paced environment, this is a great opportunity to play a pivotal role in a fast-growing company. You will have a concrete impact on the future of the business as a whole. What you will do * Research, plan, scope, evaluate and implement our MarTech stack using Python and PHP * Help and train the engineers of our business units to integrate sdk's we provide * Own MarTech maintenance, including updates, enhancements, security, and privacy of the systems * Help teams identify where technology can help increase conversion, efficiency and user experience * Be a point of contact when it comes to technical solutions in the MarTech space and be the key person when it comes to technical questions about the stack Job requirements * Demonstrable experience in building high-quality systems * Experience building scalable solutions with Python or PHP * Solid understanding of SQL * Solid understanding of HTTP/REST, including both developing and consuming Web-based APIs * Proven capability in integrating different in-house built systems with off the shelf products * A curious, passionate, and growth-oriented mindset * Strong interpersonal and communication skills. Ability to build strong relationships with cross-functional stakeholders and influence at all levels of the organisation * Proven ability to manage multiple projects and priorities, and deliver high-quality software solutions on time and on budget * Ideally you already had some touchpoints with marketing technology in the past.   What We Offer * Work that Matters: millions of people trust Proton with their privacy. We answer only to our users — not advertisers, not investors with conflicting agendas, not governments. The work you do here is real, and the impact is measurable. (read more about our impact here) * Work with smart and dedicated people - Our team is diverse, collaborative, and tight-knit with people coming from all walks of life, including many of the world’s top academic institutions and organizations, such as MIT, Harvard, Stanford, Caltech, Cambridge, and ETH. * Technology: you'll get the right hardware and the right software you need to do your best work. * Learning & Development: we invest in your growth because sharp people make us better. Proton is one of the fastest ways to accelerate your career because you'll be thrown into real challenges, with real ownership, from day one. * Employee Benefits: your wellbeing isn't an afterthought. We offer strong health coverage, solid retirement options, generous leave, and wellness support so you can bring your best self to work every day * Stock Options: at Proton, we all have the opportunity to be owners of the company. From day one, you have a real stake in what we're building. When Proton wins, you win. * In-Person Collaboration: Amazing things happen when passionate, smart, and purposeful people get together in the same room. With offices across Geneva, Zürich, Barcelona, London and more, you'll spend most of your time collaborating face-to-face with people who genuinely care about what they're building * Food: Lunch and snacks are on us every day in our offices so you can focus on the work and not on what's for lunch. * Transport: getting to the office shouldn't cost you. We cover public transport, bike allowances, or parking, whichever works for you. * Flexible Working: you own your schedule. Set hours that work for you and your team — because outcomes matter more than when the clock says you started. Our Commitment to Diversity and Inclusion At Proton, we believe diversity drives innovation and strengthens our mission to provide privacy as a default for all. We are committed to fostering an inclusive environment where all individuals, regardless of race, ethnicity, gender, age, sexual orientation, physical ability, or socio-economic background, feel valued and empowered. We strive to create equal opportunities, promote open dialogue, and support continuous learning to ensure every voice is heard and respected. If you need any extra support or reasonable adjustments during the hiring process, please let your talent partner know. Candidate Privacy Notice When you apply for a position, refer a candidate, or are considered for a role at Proton Technologies AG (Proton, we, us, or our), your information is stored in Greenhouse, in accordance with their Service Privacy Policy. This information is used to evaluate your suitability for the posted position. We also retain this information for consideration for future roles that you may apply for or that we believe may align with your background and skills. If we no longer have a legitimate business need to process your information, we will either delete or anonymize it. Should you have any inquiries about how we use or manage your information, or if you wish to access, correct, or delete your data, please contact our privacy team at careers@proton.ch. Proton does not accept unsolicited resumes from any sources other than directly from candidates. We will not pay a fee for any placement resulting from an unsolicited offer, even if the candidate is subsequently hired by Proton. To learn more about our privacy policy, please visit our privacy policy page. COMPENSATION RANGE * Paris: 43,000 - 69,000 EUR gross annually* * Prague: 863,000 - 1,500,000 CZK gross annually* * Other locations: Compensation will be discussed during the interview process.  * Final compensation will be determined based on the candidate's qualifications, skills, and previous experience. #LI-ONSITE