Senior Backend Developer

Responsibilities

• Develop data processing algorithms related to remote identification and authentication
• Build and improve internal tools for compliance officers from scratch
• Implement test-driven development (TDD) and conduct A/B testing
• Optimize and automate CI/CD pipelines to improve deployment speed and reliability
• Monitor, troubleshoot, and perform performance tuning for cloud infrastructure and distributed systems

Requirements

• Proficiency in Java 17
• Experience with MongoDB, ClickHouse, or Redis
• Proven track record of developing clean, high-quality code and automated tests
• Strong analytical and problem-solving skills
• Good command of the English language
• Ability to work in a remote-first, distributed team environment

Preferred Qualifications

• Familiarity with Dropwizard or Restler frameworks
• Experience with Apache Kafka and Kafka Streams
• Knowledge of Elasticsearch or OpenSearch (k-NN)
• Experience with Airflow for workflow orchestration

Benefits

• Remote-first, trust-based culture with no mandatory office days
• True flexibility with non-fixed working hours
• Extra time off, including your birthday, personal days, and sick days
• Fair and transparent market-benchmarked compensation
• Opportunities for professional growth and coverage of role-specific events
• Regular fully-covered team offsites

About the Company

Sumsub is a leading full-cycle verification platform that enables scalable compliance. We provide identity and business verification, ongoing monitoring, and customizable analytics to help over 4,000 global clients prevent fraud and maintain compliance.