At TeaCode, we build digital products that actually make sense – for real users, real businesses, and long-term growth.We’re looking for a Senior Fullstack Developer who wants more than just “another project” — someone who enjoys building products, taking ownership, and working closely with people.You’ll join one of our product teams and play an important role not only in development, but also in shaping technical decisions and supporting less experienced team members. Tech stack you’ll work withDepending on the project, you’ll work mainly with:Nest.jsNext.jsTypeScriptReactNode.jsPostgreSQLSupabase React Native What we’re looking forWe’re looking for a senior — not just by years, but by mindset. You are someone who:has 8+ years of commercial experience in software developmenthas at least 2 years of experience leading projects or development teamshas commercial experience with Next.js and Nest.jsfeels confident with TypeScript, React, and Node.jscommunicates well in English (min. B2+)speaks Polish fluently (C1 or native – must-have)understands the full software development lifecycleusing AI tools to support efficiency on daily basiscan take responsibility, make technical decisions, and explain why - taking under consideration business aspects of product developmentenjoys mentoring, supporting, and guiding junior developerslikes working with people, not just with code 🙂 Nice to have (but not required):experience with Supabaseexperience with React Native How we workWe work as a team, not as a group of isolated individualsSeniors are expected to:take ownershipdive into business side of product developmentsupport junior developershelp shape architecture and technical directionWe work directly with clients, so clear communication and openness really matterWe care about building good products, not just delivering tickets What we offerLong-term cooperation on international projectsWork with clients from all over the worldFlexible working hours and 100% remote setupReal influence on technical and product decisionsA team that genuinely cares about quality, collaboration, and growthDevelopment in AI tools and modern workflowsSpace to grow as a technical leader, not just a developer About us:50+ people on boardWarsaw-based software house with a strong product mindsetFriendly, supportive atmosphere — no corporate nonsense More about us 👉 https://www.teacode.io/Recruitment processHR Interview (30 min) A conversation with our Head of HR to understand your experience, motivation, and expectations.Short Analytical Test The goal is to assess analytical thinking, attention to detail, and the ability to work with patterns and language — not advanced technical knowledge.Technical Interview (60 min) A meeting with one of our Tech Leads where you’ll talk about:solving technical problemsarchitecture and code qualitydecision-making as a seniorhow you use AI tools in your daily workFinal Interview (30 min) A conversation with our Head of Delivery focused on:Business understanding of the productculture fitleadership mindsetteamwork and ownershipyour willingness to grow and support othersDecision Usually within one week after the final interview.