Senior Full-Stack Product Engineer (Startup, SaaS, Amsterdam)

Over 2 million food & beverage (F&B) businesses operate in the EU. 60% face failure within their first year 80% in five years. SOUS is here to change that. We’re building a platform that empowers independent F&B creators to thrive - unlocking new revenue streams, cutting costs, and scaling online growth with ease. From e-commerce to delivery management to building loyal communities, we’re reimagining how independent F&B brands grow in a digital-first world. In just two years, we’ve scaled rapidly, onboarded top talent, and brought in over €8M in sales for our clients. Now, we’re evolving - transitioning to a SaaS-first model that will shape the future of the €100B independent F&B market. To make this vision a reality, we’re searching for a Senior Full-Stack Product Engineer who’s as excited about building great products as they are about leading a team. If you’re ready to roll up your sleeves, write brilliant code, and influence the technical direction of a high-growth startup, we’d love to meet you. <h2 id="tasks">Tasks</h2> Code, Build, and Ship (70%-80% of your time): <ul> <li>Develop and refine our core backend (Django) and frontend (React + TypeScript).</li> <li>Create and improve APIs for users, orders, shipping, and partner tools.</li> <li>Build smart integrations with tools like Shopify and Mendrix.</li> <li>Scale and optimize cloud hosting on GCP (and AWS in the future).</li> <li>Ensure our stack is clean, scalable, and future-proof.</li> </ul> Product Engineering (20%-30% of your time): <ul> <li>Architect and scale multi-tenant SaaS solutions for the next phase of SOUS.</li> <li>Collaborate with product, design, and operations teams to align technical plans with business goals.</li> <li>Set the bar for code quality, testing (TDD/BDD), and CI/CD workflows.</li> <li>Mentor developers to help them grow while creating a culture of engineering excellence.</li> <li>Identify opportunities to innovate and improve.</li> </ul> <h2 id="requirements">Requirements</h2> Hands-On Experience: <ul> <li>You’ve been in the trenches as a full-stack developer for 10+ years, and you’re fluent in Python (Django) and JavaScript/TypeScript (React).</li> <li>You’ve built and scaled SaaS applications that are battle-tested in production.</li> <li>Your database game is strong - PostgreSQL and ORMs are second nature to you**.**</li> </ul> Leadership in Action: <ul> <li>You’ve led teams, balancing writing code with mentoring and decision-making.</li> <li>You can architect systems that are both elegant and robust while keeping your hands dirty in the codebase.</li> </ul> Smart Development Practices: <ul> <li>Testing isn’t just a buzzword for you - it’s how you build (Pytest, React Testing Library).</li> <li>You’re fluent in Git workflows and CI/CD tools (e.g., Bitbucket Pipelines).</li> </ul> API experience: <ul> <li>Deep experience in building and integrating APIs—whether it’s RESTful APIs, JWT Auth, or third-party tools like Shopify and Mendrix.</li> </ul> Frontend Know-How: <ul> <li>Modern frameworks (React, MUI) are where you shine.</li> <li>You know how to make frontends fast, responsive, and delightful.</li> </ul> Bonus Points For: <ul> <li>Experience with Firebase (Auth, Hosting) or Google Analytics.</li> <li>Building SaaS platforms and multi-tenant architectures.</li> <li>A background in e-commerce, marketplaces, or scaling startups.</li> </ul> <h2 id="benefits">Benefits</h2> Why SOUS? <ul> <li>Competitive Salary + Equity: €95k + options—you’ll grow with us.</li> <li>Shape the Future: Your contributions will define what SOUS becomes.</li> <li>Flexibility: While we’re primarily on-site, we value flexibility when it makes sense.</li> <li>Passion-Driven Team: Join a group of foodies and techies who love solving big problems.</li> <li>High Impact: Be part of a mission that’s changing the way F&B creators succeed.</li> </ul> What to Expect in the Hiring Process: <ol> <li>A 30-minute intro call to get to know each other.</li> <li>A 60-minute technical deep dive.</li> <li>An technical assessment at our offices in Amsterdam.</li> <li>A 30-minute cultural alignment chat to see if we’re a match.</li> </ol> Ready to make an impact? Let’s build something incredible together.