Java Software Engineer
Capital, Warsaw, Mazowieckie, Poland +2
- Pay
- Not listed by the employer
- Work type
- Hybrid
- Level
- Not stated
- Area
- Software engineering
- Posted
- Jun 13, 2025
About the role
We are a leading trading platform that is ambitiously expanding to the four corners of the globe. Our top-rated products have won prestigious industry awards for their cutting-edge technology and seamless client experience. We deliver only the best, so we are always in search of the best people to join our ever-growing talented team.
We are a leading trading platform that is expanding to the four corners of the globe. Our top-rated products have won prestigious industry awards for their cutting-edge technology and seamless client experience. We deliver only the best, so we are always in search of the best people to join our ever-growing talent team.
We are currently growing our Backend Team and looking for great Engineers with an interest in trading to join us! Our Engineering team plays a pivotal role in ensuring the robustness, speed, and security of our product. Dedicated to enhancing performance, providing a best-in-class user experience, ensuring compliance, and safeguarding data, the team's efforts directly impact our ability to offer clients a seamless and secure trading journey.
We believe great engineering talent not only delivers excellent code, but also lives our values. We are looking for someone who is eager to go fast, willing to innovate and grow, who knows how to listen, respect and support, strives to exceed client expectations, and takes full ownership to achieve real results.
Core responsibilities: - Design and build scalable, low-latency, and high-performance backend services
- Develop distributed and asynchronous systems ensuring reliability and fault tolerance
- Optimise performance across JVM, databases, caching, and networking layers
- Apply security best practices in handling client PII and financial transactions
- Use event-driven architectures and modern messaging solutions (e.g. Kafka)
- Collaborate with cross-functional teams to align architecture with business needs
- Maintain high code quality through testing, code reviews, and CI/CD practices
- Leverage AI tools to accelerate development, testing, and delivery
What you will need: Experience & domain knowledge: - 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
- Solid knowledge of concurrency, multithreading, and asynchronous programming
- Awareness of security best practices in handling PII and financial transactions
- Basic understanding of network protocols and troubleshooting
- Experience working in a product-led fast-paced environment as a team player
Technical skills: - Java and Spring: Advanced knowledge of Java Core technologies and the Spring framework
- Data Mastery: Proficiency with SQL databases, ensuring optimal performance, structure, and replication
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Listed on Capital's Lever job board; checked 19 h ago. First seen by us 19 h ago. Being listed doesn't mean the team is actively interviewing. We found this board in a public directory and haven't yet confirmed it against the company's own careers page.