Senior Backend Developer

Sumsub

. Develop data processing algorithms for remote identification and authentication of individuals .

Posted 10/30/2026full-timeRemote • United StatesSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in developing data processing algorithms and internal tools for compliance, with a strong focus on optimizing CI/CD pipelines and ensuring high-quality code through test-driven development. Proficient in cloud infrastructure performance monitoring and troubleshooting.

Highest-signal resume keywords

Java 17DropwizardMongoDBApache KafkaCI/CD Optimization

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Data Processing AlgorithmsTest-Driven DevelopmentA/B TestingAutomated TestingHigh-Quality Code Development

Soft Skills

Strong Communication SkillsTeam PlayerEmpathyAnalytical SkillsProblem-Solving Skills

Tools & Technologies

RestlerClickHouseRedisKafka StreamsElasticsearchOpenSearchAirflow

Industry Keywords

ComplianceCloud InfrastructureDistributed Systems

Tech Stack

Tools & technologies

AirflowApacheCloudDistributed SystemsElasticSearchJavaKafkaMongoDBRedis

About the role

Key responsibilities & impact

Develop data processing algorithms for remote identification and authentication of individuals
Develop internal tools for compliance officers from scratch
Perform test-driven development and A/B testing
Optimize and automate CI/CD pipelines to improve reliability and deployment speed
Monitor, troubleshoot, and tune the performance of cloud infrastructure and distributed systems

Requirements

What you’ll need

Good command of the English language
Familiarity with Java 17, Dropwizard, Restler, MongoDB, ClickHouse, Redis, Apache Kafka, Kafka Streams, Elasticsearch, OpenSearch (k-NN), and Airflow
Understanding of product and passion for building software that provides a great experience
Experience developing clean, high-quality code
Experience with automated tests
Team player with strong communication skills and empathy
Strong analytical and problem-solving skills

Benefits

Comp & perks

Remote-first, trust-based culture with no mandatory office days or attendance trackers
Offices or coworking spaces provided in some locations, with employee choice
Flexible working hours without a fixed 9-to-5 schedule
Birthday holiday
10 personal days each year
Seven sick days without paperwork
Extra time off for Christmas and New Year
Role-specific learning opportunities and covered professional events
Financial bonuses for marriage and welcoming a new baby
Fully covered team offsites several times a year
Tools and hardware needed to perform the work
Equal opportunity and inclusive workplace