We are looking for an experienced Senior Java engineer with 5+ years of commercial experience to join a large-scale data-driven platform with millions of users.

Requirements

• 5+ years of experience in development
• Experience with Vert.x, Cassandra, Redis
• Experience with AWS (EKS, S3, Lambda, etc.) and Cloudflare Serverless
• Confident in using Git, Linux/Unix, Maven
• English: Upper-Intermediate or Advanced
  
  

Will Be a Plus

• Java Mastery: 5+ years with JVM internals (GC tuning/JIT optimization)
• Distributed Systems: Production experience with 50k+ RPS systems
• Data Modeling: Data locality, reads and writes amplification awareness
  
  

Responsibilities

System Architecture & Implementation

• Migrate to use service based APIs from a monolithic architecture
• Lead design of low-latency, event-driven architecture
• Implement reactive patterns on k8, using Kafka, Flink, Quarkus and more
  
  

Performance Engineering

Conduct GC tuning for <100ms p99 latency

Design and improve distributed caching patterns

Comfortable with writing and running load testsCross-Functional Leadership

Co-create API specifications with mobile/desktop teams

Partner with DevOps on CI/CD pipeline enhancements

Mentor junior engineers through pair programming

Production Excellence

• Own services from design through post-deployment monitoring
• Conduct blameless post-mortems for incident analysis
• Implement chaos engineering practices
  
  

Product

The platform processes large-scale real-time data and requires a skilled engineer to develop and optimize data pipelines, storage solutions, and analytics systems. You will work closely with a highly experienced Data Architect and collaborate with a strong engineering team to ensure high-quality delivery.

Work Schedule: Full-time working day in our office (flexible hours) or remote

Interview Stages

• 1-st stage — call with the Recruiter
• 2-nd stage — interview with the Java developer and the Recruiter
• 3-rd stage — technical interview with the client (group 1)
• 4th stage — technical interview with the client (group 2)
• 5th stage - cultural fit interview
  
  

Benefits

• Projects with modern stack
• Work from anywhere (fully remotely or in our office)
• Paid vacations and sick-leaves, additional days-off, relocation bonus
• Wellness: Medical insurance/ sport compensation/ health check-up+flu vaccination at your choice
• Education: regular tech-talks, educational courses, paid certifications, English classes
• Fun: own football team, budget for team-lunches, branded gifts
  
  

Recruiter Mariia Katrych