Sumsub is a leading full-cycle verification platform that enables scalable compliance. From identity and business verification to ongoing monitoring, our platform adapts to different risk appetites and market demands, ensuring global compliance. It allows customizing analytics and workflows with a no-code interface.
Over 4,000 clients — including Bitpanda, Wirex, Avis, Bybit, Vodafone, Duolingo, Kaizen Gaming, and TransferGo — trust Sumsub to accelerate growth, prevent fraud, and maintain compliance worldwide.
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.
Java 17
Java Framework: DB: MongoDB / ClickHouse / Redis
Others: Apache Kafka / Kafka Streams / Elasticsearch / OpenSearch (k-NN) / Airflow
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. Extra time off. 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.
Truly integral. We support your progress with learning opp

📌 Senior Backend Developer (España)
🏢 Sumsub
📍 España