backend developer for a mobile app marketplace

Founded in 2017, refurbed is a marketplace for refurbished products active in 23 European countries. Its mission is to make sustainable consumption an easy choice by offering products at lower prices while reducing CO₂ emissions.

• Design, build, and maintain core APIs and backend services powering the mobile app and marketplace;
• Own production systems operations and monitoring;
• Review backend designs and API changes across squads to ensure they meet the mobile app’s needs and constraints, and flag caveats early;
• Integrate third-party systems and APIs into the platform;
• Own the design and implementation of new features and services;
• Identify best practices and create or suggest standards for the engineering department;
• Document and demonstrate solutions using documentation, flowcharts, layouts, diagrams, charts, code comments, and clear code;
• Mentor junior colleagues and onboard new joiners;
• Collaborate with engineers, product managers, and business stakeholders to deliver high-quality solutions;
• Share insights and present achievements and results in relevant meetings;
• Occasionally propagate backend changes to the frontend.

• 7+ Years of experience designing and building scalable backend services in a modern production environment;
• Strong proficiency in Go and deep understanding of distributed systems and service-oriented architecture;
• Comfortable with JavaScript/TypeScript or able to learn Node.js quickly;
• Experience working on a team that builds and maintains a native mobile app, with an understanding of how mobile apps consume backend services and related constraints;
• Strong knowledge of SQL and relational database design;
• General frontend knowledge and ability to perform basic tasks in frontend apps;
• Self-starter with ownership, initiative, and ability to learn and navigate complex systems;
• Open-minded, with clear, direct, and respectful communication;
• Humble, collaborative, and comfortable in a transparent culture;
• Excellent English skills;
• Based in a European time zone;
• A degree in Computer Science or a related field, or equivalent work experience, is desired;
• Nice to have: Node.js experience, reviewing designs and guiding engineers across squads.

• Dedicated learning budget for courses, conferences, and other learning opportunities;
• Private sessions with experts for personal growth and mental health through Likeminded;
• Internal workshops for skills development and cross-department collaboration;
• Flexible self-organized working hours;
• Office weeks three times a year, with team-building events and on-site workshops.