Back-End Engineer - Java (Payments)
CAPCO POLAND
*We are looking for Poland based candidate.
At Capco Poland, we’re not just another consultancy - we’re the spark behind digital transformation in the financial world. As a global leader in technology and management consulting, we thrive on helping clients tackle the toughest challenges across banking, payments, capital markets, wealth, and asset management.
Build scalable, secure back-end solutions and help shape the future of payment technology.
The Role
At Capco, we're looking for an experienced Back-End Developer to provide specialist development services for a project within the financial services and payments industry. You'll collaborate with the Team, contributing to the design, development, and enhancement of modern back-end applications and services supporting business-critical payment solutions.
This engagement offers the opportunity to apply your Java and Spring Boot expertise, work with PostgreSQL and AWS cloud technologies, and deliver reliable, scalable, and high-performance solutions within a collaborative engineering environment.
What You’ll Do
- Design, develop, and deliver scalable, secure, and high-quality back-end services using Java 25 and Spring Boot 4.
- Collaborate with the Agile Team, including developers, product owners, QA engineers, and other stakeholders, to coordinate technical activities and deliver agreed project outcomes.
- Develop and maintain RESTful APIs, microservices, and integrations with PostgreSQL databases and AWS cloud services.
- Deliver clean, maintainable, and testable code, contributing to technical reviews and applying established engineering standards.
- Analyse and resolve technical challenges, optimise application and database performance, and contribute to improvements in system reliability, security, and scalability.
What We’re Looking For
- Around 5–10 years of hands-on expertise in Java and Spring Boot, including knowledge of Java 25 and Spring Boot 4.
- Strong understanding of object-oriented programming, microservices architecture, RESTful APIs, and modern back-end development principles.
- Practical experience with PostgreSQL, including database design, SQL query optimisation, and efficient data management.
- Hands-on experience with AWS cloud services and developing or integrating cloud-based applications.
- Ability to deliver technical solutions independently while collaborating effectively with cross-functional teams in Agile or Scrum project environments.
Bonus Points For
- Experience delivering technology solutions within financial services, payments, or transaction-processing environments.
- Familiarity with AWS services such as ECS, EKS, Lambda, RDS, S3, or CloudWatch.
- Experience with containerisation technologies such as Docker and Kubernetes, alongside CI/CD pipelines and automated deployment processes.
- Knowledge of automated testing frameworks such as JUnit, Mockito, and integration testing tools.
- Understanding of event-driven architecture, messaging technologies such as Kafka, and application monitoring and observability practices.
B2B cooperation in a hybrid model, with the option to provide services from the Warsaw office to the extent agreed based on project needs.
Recruitment Process:
- HR Interview with the recruiter
- Technical Interview
- Client Interview
- Feedback and offer
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