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Performance Engineer - Remote


Nexeo is looking for a Java Developer (Dev Engineer) to support one of its clients in the banking sector, within a highly visible digital channels and customer experience environment. As a consultant, you will have the opportunity to be part of Nexeo: • An international consultancy active in banking, finance, insurance, and public sectors • More than 450 consultants across Europe and North America • Large-scale Agile and digital transformation programs • Continuous technical learning and career development opportunities Mission Context You will join a strategic Agile Tribe responsible for the bank’s customer channels and digital experiences across web and mobile platforms. Within the Cards squads, you will contribute to critical payment-related solutions used daily by customers. The environment offers end-to-end feature delivery, combining backend cloud systems and frontend/mobile applications in a modern Agile setup. The mission aims to strengthen the squad with a skilled Java developer capable of contributing both technically and collaboratively over the long term. Function Description As a Java Developer, you will join a cross-functional Agile squad composed of internal and external collaborators and contribute to both development and operational activities. Your responsibilities include: • Translate functional and technical requirements into high-quality, maintainable code • Design, develop, and maintain scalable backend applications using Java and Spring Framework • Collaborate with cross-functional teams to deliver end-to-end features • Integrate external APIs and data sources into the platform ecosystem • Ensure application performance, reliability, scalability, and responsiveness • Apply software craftsmanship and clean code principles in daily development activities • Identify and resolve bugs, bottlenecks, and performance issues • Participate in DevOps activities, including CI/CD pipeline setup and optimization • Contribute to API automation testing as part of the development lifecycle • Participate actively in Agile ceremonies and continuous improvement initiatives Language Requirements • English: Strong working knowledge mandatory • Knowledge of French and/or Dutch is considered a plus Education • Bachelor’s or Master’s degree, or equivalent experience Required Experience • Minimum 6 years of experience in Java development within Agile environments Technical Skills Mandatory: • Strong expertise in Java, Spring Framework, Maven, and database technologies • Experience with RESTful APIs and Swagger/OpenAPI (YAML) • Strong understanding of Object-Oriented principles, DDD, SOLID principles, and design patterns • Practical experience with Test Driven Development (TDD) and refactoring practices • Experience with Git and version control systems • Knowledge of CI/CD tools and practices (Jenkins or equivalent) • Familiarity with SAST tools such as SonarQube, Fortify, or NexusIQ Nice to have: • Docker and containerization technologies • Groovy scripting • API automation testing experience • Practical Scrum experience Agile Mindset • Positive, pragmatic, and collaborative approach • Strong willingness to learn, adapt, and share knowledge • Team-oriented mindset focused on collective success • Continuous improvement mentality driven by feedback and collaboration • Comfortable contributing across multiple disciplines within Agile squads Soft Skills • Strong communication and collaboration abilities • Proactive mindset with willingness to share expertise and improve team practices • Adaptable and comfortable integrating into new teams and environments • Open to feedback and constructive challenge of requirements when needed • Strong ownership and problem-solving mindset Why Join Us Join Nexeo and contribute to high-impact digital banking solutions within a modern Agile environment, working on customer-facing payment platforms while leveraging cutting-edge Java, cloud, and DevOps technologies.

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