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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
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
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
Key Skills
Ranked by relevance
java
cicd
kubernetes
prometheus
cloudflare
terraform
grafana
storage
apache
gitlab
redis
kafka
aws
jvm
eks
s3
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Login to Apply
- Posted
- Dec 16, 2025
- Type
- Full-time
- Level
- Mid-Senior
- Location
- Lviv
- Company
- TechMagic
Industries
Software Development
Categories
Other
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