Senior Java Developer EXPIRED

We are looking for a Senior Back-End Developer to take ownership of complex backend systems, lead technical architecture decisions, and mentor the next generation of developers. You will work with cutting-edge technologies to design, build, and optimize services that impact billions of mobile users worldwide.This is a hands-on leadership role — ideal for someone who thrives in a fast-moving environment, enjoys collaborating across functions, and is driven to deliver scalable, reliable, and future-proof systems.Requirements:Bachelor's degree in Computer Science or equivalent practical experience;6+ years of professional Java development experience;Proven track record in designing and delivering complex distributed systems and microservices (Docker, Kubernetes);Strong understanding of scalability, concurrency, and performance optimization challenges;Hands-on experience with CI/CD tools and automated build/deployment pipelines;Proficiency in Spring & Spring Boot frameworks;Excellent communication skills and the ability to influence technical direction across teams;Experience running applications on Kubernetes, with a focus on designing services that scale efficiently and consume resources effectively (rather than cluster administration);Ability to measure and improve application performance using profiling, benchmarking, and APM tools (e.g., JFR, JMeter, Micrometer, New Relic, Datadog)Responsibilities:Design and develop highly scalable, modular backend applications and APIs using Java and Spring Boot;Own the full development lifecycle — from requirements analysis, design, coding, and testing to deployment and monitoring in production;Lead initiatives to improve system scalability, performance, and security;Collaborate closely with Product, Algo, DevOps, BI, and Marketing to deliver integrated, business-driven solutions;Ensure observability through robust logging, metrics, and alerting with tools like Prometheus, Grafana, Kibana;Drive adoption of engineering best practices, code quality standards, and technical documentation;Mentor and guide junior developers, fostering knowledge sharing and continuous improvementWill be a plus:Background with NoSQL databases (MongoDB, Couchbase) and SQL databases;Knowledge of reactive programming (Spring WebFlux);Familiarity with monitoring and alerting tools such as Prometheus, Grafana and KibanaWhat we offer:Help and support from our caring HR team;20 days of vacation;Health Insurance;Gym Subscription (Multisport);The exchange of experience and work with talented colleagues;Last but not least - valuable compensation for your efforts