Who we are

Worldline is a global leader in the fintech market, with more than three decades of experience. Its footprint gives scale to projects and talents. Innovation is part of our DNA and our diverse community of experts keeps anticipating the evolution of commerce worldwide. We are shaping the future of payments.

Find out more about our exciting, multicultural and learning work environment here.

The Opportunity

We are seeking a highly skilled Senior Java Developer to join our team and play a key role in designing, developing, and maintaining enterprise-grade applications. The ideal candidate will have strong expertise in Java, Spring Boot, Apache Camel and microservices, with hands-on experience in building scalable backend systems and integrating with REST services. You will collaborate closely with architects, product owners, and cross- functional teams to deliver secure, high-performance, and reliable software solutions. This role also involves contributing to coding standards, mentoring junior developers, and ensuring best practices in software design and development.

Day-to-Day Responsibilities

• Design, develop, and maintain scalable backend applications using Java, Spring Boot, and microservices architecture.
• Collaborate with architects and product owners to define technical solutions that align with business requirements.
• Build and integrate RESTful APIs, ensuring security, performance, and reliability.
• Work with SQL/NoSQL databases to design efficient data models and queries.
• Participate in code reviews, unit testing, and continuous integration to maintain code quality and delivery standards.
• Troubleshoot and resolve complex technical issues across environments.
• Contribute to technical design discussions, coding standards, and best practices
• Mentor and guide junior developers, fostering a culture of knowledge sharing and continuous improvement.
• Stay up to date with emerging technologies, frameworks, and industry trends to bring

innovation into the team.
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Essential & Technical Competencies:

• Strong Expertise in Java SE/EE (Collections, Concurrency, Generics, Streams, Lambda) with Spring Boot, Spring Cloud., Hibernate.
• Strong Expertise with Apache Camel
• Strong Expertise in microservices architecture and service orchestration.
• Exposure to event-driven systems, messaging (Kafka, RabbitMQ).
• Experience with CI/CD pipelines and tools such as Git and Jenkins along with Cloud Platform.
• Experience with Containerization & orchestration (Docker, Kubernetes).
• Strong knowledge of SQL/NoSQL databases (Postgres, Oracle, MongoDB, Redis) along with data modelling, performance tuning, caching strategies.
• Frontend knowledge preferably with Angular will be an advantage.
• Experience in Unit Testing tools like Junit etc..
• Ability to design scalable, high-performance, and resilient applications.
• Deep technical expertise in back-end, front-end, or native platforms depending on the squad’s

scope.