Senior Software Engineer

📍 Paris | Full-time | Fluent 🇫🇷 & 🇬🇧 At Bigblue, we're building the logistics backbone for the next generation of commerce. Modern brands sell everywhere: through their own online stores, marketplaces, retail, social commerce, and more. Across every channel, customers expect the same fast, reliable, and transparent experience after they buy. What used to be Amazon's exclusive advantage is now becoming the standard for every ambitious brand. We're helping them get there. Since 2018, we've built a tech-driven fulfilment platform used by 600+ brands, including Muji, Aigle, Scuffers, and Cabaïa. With 200+ Bigbluers across the UK, France, Spain, and Germany, our proprietary tech stack, and a network of 11 warehouses and over 100,000 sqm of fulfilment space across Europe, we ship millions of orders every month. And we're nowhere near done! Backed by €20M+ in funding, we're expanding across Europe and building the operating system that will power modern commerce operations at a global scale. At Bigblue, we hold ourselves to a very high bar: in the quality of our product, the rigour of our operations, and the care we bring to every merchant we work with. You'll be working alongside talented people on real, high-impact problems, in an environment where high standards come with genuine support, ownership, and room to grow. If you want your work to matter from day one, you're in the right place. Role: • Own subjects from solution exploration through implementation • Design systems that take into consideration scale and hyper-growth • Review your peers and ensure no bug slips to production • Improve engineering standards and development tooling • Join in on system design conversations in product and engineering Requirements • Engineering degree or equivalent • 5+ years of experience as a software engineer • Experience doing software development (Go, Java, Scala, Python, ...) in a professional environment • Familiarity with systems and patterns commonly utilized to create solutions at scale • Interest and empathy to reach for magical user experiences • Attention to detail, hold yourself and others to a high bar when writing production code • Strong English communication and writing skills Nice to have : • Experience with Go and/or React-Typescript specifically • Experience with distributed systems and/or micro-services at scale • Familiarity with Kubernetes • Experience with event-driven systems • Compulsive software news reader (hello HN!) Why join Bigblue 💼 High impact role: Be at the center of our growth journey and help shape the team that will power Bigblue’s future. 💙 Founders-led company with an innovative, caring culture. 🚀 Fast-growing scale-up: Join a well-funded, early-stage company where your work will have immediate and visible results. 🌍 International environment: Work across Paris, Madrid, London, and our European warehouse network. 🏢 Brand-new offices in the heart of Paris’ 9th arrondissement (biggest tech hub). 🍱 10€ meal voucher per worked day (55% paid by Bigblue) + unlimited free snacks at the office. 🧘‍♀️ ClassPass membership for fitness & wellness. 🖥️ MacBook or any setup you need — your choice of equipment to do your best work. 🩺 100% health insurance coverage with Benefiz. Regardless of sex, gender identity, sexual orientation, race, color, religion, origin, disability, age… At Bigblue, we create equal opportunities for all and make our culture as inclusive as possible. Because we believe that challenging assumptions and embracing diversity in experiences and backgrounds is what makes us stronger. Because what we value first and foremost are curiosity and growth-driven minds. So, regardless of who you are and how many “boxes” you tick on the job description, if you have