Senior Java Developer
Location
Ukraine
Posted
9 days ago
Salary
0
Seniority
Senior
Job Description
Senior Java Developer
Traffic Label Limited
• Build scalable, testable backend solutions independently from requirements through to production deployment • Own services end-to-end and guide complex features through the full development lifecycle • Integrate third-party services according to business and technical requirements • Collaborate closely with Backend, Frontend, QA, and Infrastructure teams • Contribute to architecture discussions and help shape the technical roadmap • Mentor team members on best practices, troubleshooting, and system design • Monitor, profile, and optimise application and database performance • Design and execute high-load performance testing scenarios • Work on complex SQL tasks and performance optimisation using PostgreSQL • Handle large-scale datasets with a focus on scalability and reliability • Troubleshoot production issues using logs, metrics, alerts, and monitoring tools
Job Requirements
- Strong commercial experience with Java Core and Spring Framework / Spring Boot
- Proven experience designing scalable systems using RDBMS and SQL
- Hands-on experience with Docker and Kubernetes
- Strong understanding of JSON, JWT, HTTP(S), REST APIs, and WebSockets
- Practical experience with Netty and non-blocking I/O
- Experience working with logging, monitoring, profiling, and alerting tools
- Strong debugging and problem-solving skills
- Good understanding of system security best practices
- Intermediate English level or higher for international collaboration
- Experience working with high-load systems and performance optimisation
- Familiarity with technologies such as Kafka, GCP, Elasticsearch, Flyway, Grafana, and Kubernetes-based environments
Benefits
- Full remote work flexibility
- Generous paid time off including vacation, sick leave, and public holidays
- Strong growth and career development opportunities
- Opportunity to work on scalable, high-performance systems using modern technologies
- Collaborative, international, and fast-moving environment
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