Senior Full Stack Java Developer

As a senior Java Developer, you will be responsible for leading the modernization and maintenance of our Java J2EE enterprise LIMS application. The primary focus will be converting legacy EJB components to RESTful services, modernizing the Swing-based UI to a modern JavaScript web framework (Svelte), and ensuring the continued stability of the system. This role will require deep expertise in Java J2EE development, UI migration, and software lifecycle management in a cGMP-regulated environment. The developer will collaborate with cross-functional teams to implement best practices, improve performance, and ensure compliance with industry standards.

Note: It’s a fully remote-based role for professionally qualified and experienced India-based candidates who are willing to work UK shifts.

ESSENTIAL DUTIES AND RESPONSIBILITIES: • Lead the modernization of an existing 1M+ lines Java J2EE application, transitioning from EJBs to RESTful APIs.• Drive the UI migration from Swing to a modern JS/TS web framework using WebSwing, ensuring a seamless user experience.• Develop and maintain microservices architecture, optimizing performance and scalability.• Work with Spring, WildFly, and PostgreSQL to enhance backend functionality.• Implement best practices for software development, ensuring compliance with FDA guidelines, cGMP 21 CFR Part 11, MHRA, and GAMP5.• Ensure software documentation, change control procedures, and regulatory requirements are met.• Collaborate with Quality Assurance (QA) and regulatory teams to maintain compliance and data integrity.• Work closely with business analysts, operations, and external vendors to align software development with business needs.• Lead training and knowledge transfer sessions to ensure effective adoption of new technologies.• Participate in Agile development processes and contribute to continuous integration and delivery (CI/CD) pipelines.• Perform all other related duties as assigned.

QUALIFICATIONS: • Bachelor’s degree in Computer Science, Software Engineering, or a related field.• 5+ years of hands-on experience in Java J2EE development, with expertise in:o EJB-to-REST conversiono Spring frameworko WildFly or similar Java EE application serverso Swing UI modernization to JS/TS web framework (preferably migrating to Svelte)• Strong experience with SQL databases (PostgreSQL preferred) and RESTful API development.Technical Skills:• Expertise in object-oriented programming (OOP) and design patterns.• Proficiency in JavaScript, ReactJS, Svelte, or other modern frontend frameworks.• Knowledge of unit testing, integration testing, and automated end-to-end testing.• Familiarity with Agile methodologies and Application Lifecycle Management (ALM) tools.Preferred Experience:• Development in a GxP-regulated environment.• Experience working with LIMS (Laboratory Information Management Systems).• Understanding of cloud-based solutions and DevOps practices.