Java Software Engineer
capital.comover 1 year ago
Warsaw, PolandMid Level
Responsibilities
- Design and build scalable, low-latency, high-performance backend services.
- Develop distributed and asynchronous systems for reliability and fault tolerance.
- Optimize performance across JVM, databases, caching, and networking layers.
- Apply security best practices when handling client PII and financial transactions.
- Use event-driven architectures and messaging solutions such as Kafka.
- Collaborate with cross-functional security, operations, product, and business teams.
- Maintain code quality through testing, code reviews, and CI/CD practices.
- Use AI tools for coding assistance, debugging, testing, documentation, and workflow optimization.
Requirements
- Proven experience in FinTech, banking, or related financial domains.
- Strong understanding of distributed-systems architecture and the client-server model.
- Ability to design and maintain scalable, low-latency, high-performance systems.
- Advanced knowledge of Java Core technologies and the Spring framework.
- Strong knowledge of concurrency, multithreading, and asynchronous programming.
- Proficiency with SQL databases, including performance, structure, and replication considerations.
- Understanding of event-driven architecture and Kafka or similar solutions.
- Hands-on experience with operational activities, Kubernetes, pipelines, and modern CI/CD practices.
- Basic understanding of network protocols and troubleshooting.
- Experience working in a fast-paced, product-led environment.
- Knowledge of JVM performance optimization, NoSQL databases, and in-memory caching is preferred.
Benefits
- Competitive salary and annual performance-based bonus.
- Generous annual leave policy.
- Health insurance and pension fund, with additional location-dependent benefits.
- Hybrid working with three days in the office or fully remote across the country of employment.
- Workation policy allowing 30 days of remote work from anywhere in the world.
- Two additional paid volunteering days per year.
Tech Stack
Categories
About capital.com
Capital.com is a retail trading platform that lets individuals trade CFDs on shares, indices, forex, commodities, and crypto via web and mobile. Founded in 2016 and privately held, it is headquartered in Limassol, Cyprus, with regulated entities in the UK and EU; it earns revenue from spreads, overnight financing, and other brokerage fees. The platform also offers education resources and real-time market insights.