Senior Backend Java Developer (Large-Scale Data-Driven Platform)
Remote
Relocation
AI Summary
Join TechMagic as a Senior Backend Java Developer to architect and optimize systems powering millions of users worldwide. Develop scalable, reactive, and event-driven ecosystems for real-time social experiences. Collaborate with a strong engineering team to ensure high-quality delivery.
Key Highlights
Architect and optimize large-scale data-driven platforms
Develop scalable, reactive, and event-driven ecosystems
Collaborate with a strong engineering team for high-quality delivery
Technical Skills Required
Benefits & Perks
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
Education: regular tech-talks, educational courses, paid certifications, English classes
Fun: own football team, budget for team-lunches, branded gifts
Job Description
We are looking for an experienced Java developer to join a large-scale data-driven platform with millions of users. As a Senior Backend Software Engineer, you’ll architect and optimize the systems powering millions of users worldwide. You’ll help evolve our infrastructure into a scalable, reactive, and event-driven ecosystem supporting real-time social experiences.
Requirements
- 5+ years of experience in Java development
- Strong expertise with JVM internals (GC tuning, JIT optimization)
- Hands-on experience with Vert.x, Kafka, and Cassandra
- Solid understanding of microservice and event-driven architectures
- Experience with distributed systems handling 50k+ RPS
- Practical knowledge of AWS (EKS, S3, Lambda) and Cloudflare Serverless
- Familiarity with CI/CD pipelines (GitLab CI/CD on-premise)
- Experience with monitoring and observability (Jaeger, Grafana, Prometheus, OTEL)
- Strong understanding of data modeling, data locality, and read/write amplification
- English: Upper-Intermediate or higher
- Experience with Apache Flink, Quarkus, or Reactive programming (Mutiny, Reactor)
- Familiarity with Redis and distributed caching patterns
- Knowledge of Kubernetes and container orchestration best practices
- Experience with Infrastructure-as-Code tools (Terraform, Pulumi)
- Contributions to open-source projects or developer communities
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 remotely
Interview Stages
- 1-st stage — call with the Recruiter
- 2-nd stage — Technical interview with our Developer and the Recruiter
- 3-rd stage — Client interview
- 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
- One of the best IT employers in Lviv based on DOU rating
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