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Applications Support Sr Analyst
Citi
IRVING, TX · Irving, TX · Irving
The Observability Engineer will support the organization's observability transformation initiatives by helping onboard applications to modern observability platforms and OpenTelemetry…
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Project Engineer - Underground & Submarine Cables (Kansas City)
Burns & McDonnell
Kansas City, MO
+ Must have a minimum of five years of experience in project (engineer/construction) development and execution.
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Platform Engineer (TS/SCI CI Poly)
Seamless Migration
Reston · Alexandria · Washington · Colorado Springs
Seamless Migration is seeking a career and customer-oriented Platform Engineer to join our team.
Added 1 min ago
Engineer III
Marriott
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…mentor other engineers as necessary. Display ability to perform Engineer on Duty responsibilities, including readings and…
Added 1 min ago
Engineer II
Marriott
ATLANTA, GA
…Display the ability to train and mentor other engineers (e.g., Engineer I). Display ability to perform Engineer on Duty responsibilities, including readings and…
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AI Engineer
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…driving data-informed decision-making and contributing to the development of cutting-edge solutions for our…
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Mechanical Design Engineer - HVAC & Plumbing (MEP)
GPAC
Saint Louis, MO
- $80,000 to $105,000 USD / year
Mechanical Design Engineer – HVAC & Plumbing (MEP)
Added 1 min ago
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Senior Mechanical Design Engineer - HVAC & Plumbing (MEP)
GPAC
Saint Louis, MO
- $100,000 to $150,000 USD / year
Senior Mechanical Design Engineer – HVAC & Plumbing (MEP)
Added 2 mins ago
Senior R&D Test Engineer - Electrical
Stryker Employment Company, LLC
Flower Mound, TX
As a Senior R&D Test Engineer, Electrical, you'll work closely with electrical, software, firmware, and systems engineers to evaluate new product designs, troubleshoot technical challenges,…
Added 3 mins ago
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Mechanical / Plumbing Design Engineer
GPAC
Saint Louis, MO
- $75,000 to $150,000 USD / year
This is more than just another design position. It's an opportunity to join a company that values technical excellence, employee development, and long-term relationships. You'll have the…
Added 3 mins ago
AC-DC Power Design Engineer
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San Jose, CA
This is a highly technical, individual contributor role for an engineer who enjoys solving complex problems, sweating the details, and taking full ownership of their design from first…
Added 3 mins ago
Test Engineer
Koniag Government Services
Vienna, VA
Kadiak, LLC, a Koniag Government Services company, is seeking a Test Engineer with a TS security clearance to support Kadiak and our government customer in Vienna, VA.
Added 3 mins ago
Cloud Platform Engineer IL6/cArmy
Koniag Government Services
Washington, DC
Tuknik Government Services, LLC, a Koniag Government Services company, is seeking a Cloud Platform Engineer IL6/cArmy with a Top Secret security clearance to support TGS in supporting our…
Added 3 mins ago
Java/.net Modernization Engineer
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Washington, DC
Tuknik Government Services, LLC, a Koniag Government Services company, is seeking a Java/.net Modernization Engineer with a Secret security clearance to support TGS in supporting our…
Added 3 mins ago
Generative AI Software Engineer
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Lead DevSecOps Appian Engineer
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Cloud Engineer Architect
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Washington, DC
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Jr./Mid-Level Software Engineer
Koniag Government Services
Annapolis, MD
Koniag IT Systems, LLC, a Koniag Government Services company, is seeking a Jr./Mid-Level Software Engineer to support KITS and our government customer. The position is hybrid, with partial…
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Lead Desktop / Client Server Engineer (TS/SCI)
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Arlington, VA
Koniag Data Solutions, a Koniag Government Services company, is seeking an experienced Lead Desktop / Client Server Engineer to join our team in Rosslyn, VA. The ideal candidate is a…
Added 3 mins ago
Software Developer
Koniag Government Services
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KGS is currently seeking an accomplished Senior Full Stack Software Engineer/Developer to spearhead the engineering, enhancement, and architectural modernization of core Line of Business…
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DevOps Engineer (REMOTE)
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Koniag IT Systems, LLC, a Koniag Government Services company, is seeking a DevOps Engineer to support KITS and our government customer. The position is remote. This position requires the…
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SharePoint Developer
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Koniag Government Services is seeking an experienced SharePoint Developer to join a dynamic development team supporting both established projects and building solutions from the ground up.…
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AWS Certified Solutions Architect - Associate
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Contribute to business development activities as needed, including supporting proposal efforts with cloud architecture narratives, technical solution designs, and relevant past performance…
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AI Security Engineer - Mid
Koniag Government Services
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The AI Security Engineer (Mid) will serve as a key technical contributor within the program's AI security engineering function, working under the direction of the AI Security Engineer Lead…
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Zscaler Integration Engineer - Mid
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The ideal candidate is a technically proficient and security-focused cloud security engineer with solid, hands-on experience across key Zscaler platforms - including Zscaler Internet Access…

RELX INC

ReactJS Java API Software Engineer

Philadelphia, PA, United States

National Base Pay Range: $78,800 - $131,300.

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Job details

Pay: National Base Pay Range: $78,800 - $131,300.
Posting language: English
Posted: Mar 28, 2026

Original job description

Philadelphia

Home based-Pennsylvania

Full time

R110947

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.

Requirements

· 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

Elsevier is a renowned global information analytics company that primarily focuses on providing scientific, technical, and medical (STM) research content, tools, and services. It is one of the largest publishers of academic journals and scholarly literature in the world.

Elsevier operates in various domains, including science, technology, medicine, social sciences, and more. They publish a vast number of peer-reviewed journals covering a wide range of disciplines. These journals act as platforms for researchers and academics to share their findings and contribute to the advancement of knowledge in their respective fields.

In addition to publishing, Elsevier offers a suite of digital solutions and services to support researchers, scientists, and professionals in their work. They provide online platforms like ScienceDirect, Scopus, and Mendeley, which offer access to a vast repository of scholarly articles, research papers, and other scientific content. These platforms often serve as essential resources for software developers seeking to stay updated with the latest scientific advancements.

U.S. National Base Pay Range: $78,800 - $131,300. Geographic differentials may apply in some locations to better reflect local market rates.

This job is eligible for an annual incentive bonus.

We know your well-being and happiness are key to a long and successful career. We are delighted to offer country specific benefits. Click here (https://www.relx.com/careers/join-us/benefits) to access benefits specific to your location.

We are committed to providing a fair and accessible hiring process. If you have a disability or other need that requires accommodation or adjustment, please let us know by completing our Applicant Request Support Form or please contact 1-855-833-5120.

Criminals may pose as recruiters asking for money or personal information. We never request money or banking details from job applicants. Learn more about spotting and avoiding scams here.

Please read our Candidate Privacy Policy.

We are an equal opportunity employer: qualified applicants are considered for and treated during employment without regard to race, color, creed, religion, sex, national origin, citizenship status, disability status, protected veteran status, age, marital status, sexual orientation, gender identity, genetic information, or any other characteristic protected by law.

USA Job Seekers:

EEO Know Your Rights.

RELX is a global provider of information-based analytics and decision tools for professional and business customers, enabling them to make better decisions, get better results and be more productive.

Our purpose is to benefit society by developing products that help researchers advance scientific knowledge; doctors and nurses improve the lives of patients; lawyers promote the rule of law and achieve justice and fair results for their clients; businesses and governments prevent fraud; consumers access financial services and get fair prices on insurance; and customers learn about markets and complete transactions.

Our purpose guides our actions beyond the products that we develop. It defines us as a company. Every day across RELX our employees are inspired to undertake initiatives that make unique contributions to society and the communities in which we operate.

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