Senior Java Engineer

Ciklum is looking for a Senior Java Engineer to join our team full-time in Poland.

We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live.

About the role:

As a Senior Java Developer, you will join a cross-functional development team delivering innovative solutions for a company that partners with some of the world’s leading banks. The team provides institutions with faster and more cost-effective access to payments through a highly flexible, payment-specific platform that seamlessly integrates with core and back-office banking systems. This is an exciting opportunity for an experienced Software Engineer with a product engineering background- ideally experienced in asynchronous, event-driven systems - to contribute to the successful delivery of a market-leading real-time payment processing solution.

Responsibilities:

Our Software Engineers are hands-on developers who work at pace, applying Kanban principles to solve complex, high-impact engineering challenges while continuously improving quality standards. Working primarily with Java, Akka, and Spring, you will contribute to the design and architecture of an innovative, real-time payment processing solution.

• Play a key role in product engineering, following Test-Driven Development (TDD) and Behaviour-Driven Development (BDD) practices
• Write high-quality, maintainable code aligned with established development standards and patterns
• Actively contribute to technical discussions and architectural decisions within the engineering team
• Develop reusable code and libraries for long-term use
• Optimise applications for performance, scalability, and resilience

Requirements:

We’re looking for proactive, self-motivated individuals who take ownership of their work and continuously seek to innovate. Successful candidates will have a proven track record of working effectively in highly collaborative, Agile development teams and a strong passion for engineering robust solutions to complex challenges.

• Strong hands-on experience with Java 11+ and Reactive Programming
• Solid experience with the Spring framework and related technologies
• Good understanding of asynchronous request handling and building high-availability, resilient distributed systems
• Experience working with event-driven and event-sourced architectures
• Familiarity with CI/CD pipelines and automation tools
• Experience in Agile delivery environments (e.g., Kanban or Scrum), and working with associated tools such as Jira and Confluence

Desirable:

• Experience with real-time messaging systems such as Kafka and JMS
• Familiarity with Akka or other reactive frameworks
• Front-end development experience using Angular 9+
• Experience with automation and environment provisioning using Ansible
• DevOps experience in highly transactional software environments
• Working knowledge of Docker and Kubernetes

What`s in it for you?

• Strong community: Work alongside top professionals in a friendly, open-door environment
• Growth focus: Take on large-scale projects with a global impact and expand your expertise
• Tailored learning: Boost your skills with internal events (meetups, conferences, workshops), Udemy access, language courses, and company-paid certifications
• Endless opportunities: Explore diverse domains through internal mobility, finding the best fit to gain hands-on experience with cutting-edge technologies
• Flexibility: Enjoy flexibility – full remote working possibilities
• Care: We’ve got you covered with company-paid medical insurance, mental health support, and financial & legal consultations

About us:

At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you’ll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress.

With delivery centers in Wrocław and Gdańsk, our 300+ professionals in Poland drive forward-thinking solutions for global clients. Join a community where collaboration sparks innovation—and your impact reaches millions.

Explore, empower, engineer with Ciklum!

Interested already? We would love to get to know you! Submit your application. We can’t wait to see you at Ciklum.

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