Senior Full Stack Java Developer

For 75 years, Charles River employees have worked together to assist in the discovery, development and safe manufacture of new drug therapies. When you join our family, you will have a significant impact on the health and well-being of people across the globe. Whether your background is in life sciences, finance, IT, sales or another area, your skills will play an important role in the work we perform. In return, we'll help you build a career that you can feel passionate about.

Job Summary
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:
• EJB-to-REST conversion
• Spring framework
• WildFly or similar Java EE application servers
• 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.

About Discovery
Discovery from Charles River is industry-proven in the successful development of novel therapies, with over 350 patents and 80 preclinical drug candidates delivered to our sponsors in the past 17 years. Backed by more than 650 scientists, our comprehensive, integrated portfolio employs the latest technology and platforms to provide chemistry, biology, and pharmacology services that support clients from the earliest stages of hit identification all the way through to IND. Our client-focused, collaborative approach creates true partnerships that anticipate challenges, overcome obstacles, and move us forward together on the journey of getting new drugs to market.

About Charles River
Charles River is an early-stage contract research organization (CRO). We have built upon our foundation of laboratory animal medicine and science to develop a diverse portfolio of discovery and safety assessment services, both Good Laboratory Practice (GLP) and non-GLP, to support clients from target identification through preclinical development. Charles River also provides a suite of products and services to support our clients' clinical laboratory testing needs and manufacturing activities. Utilizing this broad portfolio of products and services enables our clients to create a more flexible drug development model, which reduces their costs, enhances their productivity and effectiveness to increase speed to market.

With over 20,000 employees within 110 facilities in over 20 countries around the globe, we are strategically positioned to coordinate worldwide resources and apply multidisciplinary perspectives in resolving our client's unique challenges. Our client base includes global pharmaceutical companies, biotechnology companies, government agencies and hospitals and academic institutions around the world.

At Charles River, we are passionate about our role in improving the quality of people's lives. Our mission, our excellent science and our strong sense of purpose guide us in all that we do, and we approach each day with the knowledge that our work helps to improve the health and well-being of many across the globe. We have proudly supported the development of 86% of the drugs approved by the FDA in 2021.

At Charles River Laboratories, we recognize and recruit all talent. We are a company committed to the principle of diversity and inclusion and work daily in this direction.

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