Senior Full-Stack Software Engineer

About us Founded in 2015 in Athens, Greece, Welcome redefines the way people travel by going above and beyond the commoditized transfer service and being the first company to deliver a complete, personalised, in-destination travel experience. From the moment a traveler arrives at a new destination, until their return journey home, Welcome Pickups accommodates all their travel needs, including transfers, sightseeing trips, and local information, in the easiest, friendliest, and most personalised way possible. Welcome's drivers are experts in the area and share their local know-how to make travellers feel at home wherever they are. The company has also introduced contactless rides, thorough cleaning protocols, and protective equipment to make every journey safe. Being a travel tech startup, Welcome continues to grow and scale its operations and is quickly becoming a global category leader for in-destination travel services. • One of the highest-rated global transportation companies with a rating of 4.9/5 stars • Expanded from 200 destinations to 350, achieving our ambitious growth targets. • Over 4,000 travel partners including 2,500 hotels, numerous vacation rentals, and travel agents, adding 50+ new ones every month • Over 2.5 Million happy travelers every year ⭐️ If you want to dive deeper into the awesomeness of Welcome's culture, click on this link to check our TikTok account. ⭐️ The Team We are a group of vibrant diverse people who love traveling and never settle on quality. Each one of us didn’t join Welcome by chance, and believes deeply in what Welcome is trying to achieve, so we work relentlessly to make that happen. We challenge common logic, focus on design, put simplicity and usability first, and create memorable experiences. We keep learning and exploring better ways to serve our community and grow personally and professionally in our respective fields. We stay humble along the way, with a “pay it forward” mentality, but with big and bold goals. About the role The Senior Full-Stack Software Engineer at Welcome Pickups, you’ll be joining one of our product teams and building solutions for the users it serves. Your main focus will be backend engineering, while also contributing to the frontend to deliver complete features. You will be working in a cross-functional team, reporting to the respective Product Manager and collaborating closely with designers and fellow engineers. You will have the opportunity to own features end to end, from shaping the solution to releasing it and seeing its impact on users. You’ll also help improve how the team plans, builds, and delivers software. Our core stack is Ruby on Rails and React. Depending on your team and the components you work on, you may also contribute to our Ionic-based mobile apps or Angular components in the Driver app. You’ll have access to AI coding tools from day one, primarily Claude Code and GitHub Copilot. We encourage using them throughout development and expect you to understand, evaluate, and take ownership of the code you ship. Responsibilities • Build and maintain backend services, APIs, and integrations, ensuring reliability, performance, and data integrity. • Deliver features across the stack, contributing to the frontend using existing components and patterns. • Collaborate with Product Managers, designers, and engineers to shape solutions and make technical trade-offs. • Own testing, release, production monitoring, and follow-up improvements for the features you deliver. • Improve the codebase through refactoring and code reviews, and take initiative to improve team processes and development practices. • Use AI tools effectively, applying your engineering judgment to validate generated code for correctness, security, and maintainability. Requir