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# ReactJS Java API Software Engineer

- **Company:** RELX Group plc
- **Location:** Philadelphia, PA, United States (Remote available)
- **Salary:** $78,800 - $131,300
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Agile Methodology, Databases, Data Integrity, DevOps, Internet Information Services (IIS), Microsoft SQL Server, Performance Tuning, Software Engineering, SQL Stored Procedures, ReactJS, Spring-boot, Electronic Medical Records, Backend, Api Design, Restful APIs
- **Published:** October 26, 2026
- **Apply:** https://www.phillyjobs.com/job.asp?id=3467621838&tx=TT5148THD&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54

## About the Role

* Possess current proficiency in ReactJS development
 * Possess current proficiency in Java Spring Boot API development
 * Ability to quickly pick up new languages and technologies
 * Ability to work well with internal and external technology resources
 * Ability to write and review portions of detailed specifications for the development of system components of moderate complexity
 * Knowledge of software development methodologies (e.g., Agile, Waterfall)
 * Ability to write and review portions of detailed specifications for the development of system components of moderate complexity

Responsibilities

 * Designing, developing, and maintaining scalable web applications using ReactJS
 * Building and optimizing RESTful Java APIs and backend services leveraging Microsoft SQL Server and IIS
 * Contributing to full-stack development, ensuring high performance, responsiveness, and reliability across applications
 * Writing clean, maintainable, and well-documented code following established coding standards
 * Translating business requirements into functional and technical solutions
 * Designing, developing, and optimizing SQL queries, stored procedures, and database schemas in Microsoft SQL Server. Ensure data integrity, performance tuning, and scalability of database-driven applications
 * Collaborating with product managers, QA, UX, DevOps, and other engineering teams to deliver high-quality solutions. Work effectively with internal and external technology partners, including vendors and third-party service providers

## Description

Are you a collaborative ReactJS and Java API Developer looking to work for a mission driven global organization?

About the role, we are looking for a collaborative ReactJS and Java API software developer to be a critical component within our agile delivery process for Software Development.

About the team, this team builds evidence-based oncology pathways - structured treatment recommendations for cancer care based on the latest clinical evidence and expert consensus.

They drive integration with clinical workflows, often embedded in electronic health records (EHRs) so oncologists can access guidance at the point of care.