Sumsub is the first AI-powered trust infrastructure for compliance operations at scale. It connects identity and business verification, fraud prevention, transaction monitoring, and risk workflows, helping teams reduce manual work and enter new markets. Trusted by over 4,000 clients across financial services, crypto, mobility, trading, marketplaces, education, and iGaming, including Bybit, Bitpanda, Wirex, Avis, Vodafone, Duolingo, and Kaizen Gaming. Now we are looking for a Senior Backend Developer to join our rapidly growing team. This is an amazing opportunity to join Sumsub and make an immediate and real impact on the future of our product. Main language: Java 17 Java Framework: DB: MongoDB / ClickHouse / Redis Development of data processing algorithms related to remote identification / authentication of individuals (both product and technical). Test driven development and A/B testing. Optimization and automation of CI/CD pipelines to increase reliability and deployment speed. Monitoring, troubleshooting, and performance tuning of cloud infrastructure and distributed systems. Good command of the English language Understanding of product and a passion for building software that provides a great experience Experience developing clean, high-quality code and automated tests to verify its operation Remote-first, trust-based culture. No mandatory office days, no attendance trackers. Your birthday is a holiday here. Add to that 10 personal days each year, seven sick days without paperwork,



and extra time to enjoy Christmas and New Year. Our mission is to build a digital world that is secure, accessible and inclusive for everyone. From fighting fraud to making online services easier and safer to use, your work will have a real impact on how people experience trust online. Compensation. You will run campaigns that cross borders, cultures, and languages, and see your ideas land worldwide. We support your progress with learning opportunities and by covering role-specific events, from design conferences to marketing forums. We are proud to support you through life’s biggest journeys with dedicated financial bonuses for both marriage and welcoming a new baby to your family. Our logo is a dog for a reason. Sounds like a great opportunity for your career development? We are a general community of innovators, creators, and thinkers, and we believe that diversity fuels our innovation. Sumsub is proud to be an equal opportunity employer, committed to building a diverse and inclusive workforce. We believe in fair and transparent compensation. Salaries vary depending on work location and applicable local market conditions. This role is open to candidates in multiple countries, and compensation differs based on the candidate’s confirmed work location. The applicable work location will be confirmed early in the recruitment process, and the relevant compensation information for that location will be shared in writing, in line with local requirements.

📌 Senior back-end developer (España)
🏢 Sumsub
📍 España