Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

ReactJS Java API Software Engineer

$78.8k - $131.3k
Full-time

Relx

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](attachment://_blank) 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](attachment://_blank) or please contact View phone number on joinrs.com. 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](attachment://_blank). Please read our [Candidate Privacy Policy](attachment://_blank). 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](attachment://_blank).
Vacancy posted 3 days ago
Similar jobs that could be interesting for youBased on the ReactJS Java API Software Engineer in Philadelphia, PA vacancy
  •  ...ID: 98384-1 Title: Senior Java Developer Locations:...  ...stakeholders, product teams, and engineering teams to design scalable, secure...  ...~8-10 years of experience in software development and architecture...  ...Java, Spring Boot, and REST APIs Deploy and manage applications... 
    Suggested
    Work experience placement
    Immediate start

    Artech LLC

    Philadelphia, PA
    13 days ago
  •  ...find the best job for you. Position: Java Developer Location: Charlotte, NC - Hybrid...  ...We are seeking an experienced Senior Software Engineer / Data Engineer to design and develop...  ...8 , Spring/Spring Boot, SQL, RESTful APIs, and microservices architecture . Support... 
    Suggested
    Permanent employment
    Contract work
    Remote work

    Tekfortune Inc.

    Philadelphia, PA
    13 days ago
  •  ...practices. Collaborating with software architects, designers, and...  ...one of the following: ~ Java ~ C# ~ .NET Strong understanding...  ...Experience developing REST APIs, microservices, and...  ...streaming platforms and data engineering such as Databricks or Apache... 
    Suggested
    Work at office
    Remote work
    Visa sponsorship
    Work visa
    Flexible hours

    CapTech Consulting

    Philadelphia, PA
    2 days ago
  • $145k - $155k

     ...00 USD Annually Description: Lead Software Engineer (Adobe Experience Manager) Location:...  ...enterprise-scale digital platforms built on Java, Adobe Experience Manager (AEM), and AWS...  .... ~ Experience building RESTful APIs and integrating with third-party platforms... 
    Suggested

    Judge Group, Inc.

    Camden, NJ
    3 days ago
  • $120.38k - $192.6k

     ..., and contributing to the development of APIs and microservices that connect Salesforce...  ...Systems, Information Technology, Computer Engineering, or equivalent work experience (4 years...  ...experience in lieu of degree)Proficiency in Java development and familiarity with other... 
    Suggested
    Work experience placement

    Lincoln Financial Services

    Broomall, PA
    2 days ago
  •  ...Description Job Description Job Title: Junior Java Developer Location: Philadelphia, PA...  ...existing systems. • Work with RESTful APIs to exchange data between services. •...  ...so far hundreds of businesses in the software, gaming, hospitality, energy, financial services... 
    Full time
    Work visa

    Magnus Technology Solutions

    Philadelphia, PA
    15 days ago
  •  ...apply now. We are currently seeking a Sr. Java J2EE Tech Lead (Property & Casualty (P&C...  ...have experience adopting AI-assisted software engineering tools and practices to improve development...  ..., Spring Framework, Microservices, Rest API #LI-NorthAmerica About NTT DATA: NTT... 

    NTT DATA

    Bala Cynwyd, PA
    2 days ago
  •  ...Java Developer Employment Type: Full-Time CGS is seeking a Java developer/programmer to join a team working on the enhancement...  ...Collaborate with business analyst and developers to produce software designs Provide work estimates to project manager, provide frequent... 
    Full time
    Flexible hours

    Contact Government Services LLC

    Philadelphia, PA
    5 days ago
  •  ...recent position ~ Experience creating and deploying serverless services ~ Working knowledge of: AWS (ECS/Fargate, Lambda, DynamoDB, API Gateway, EC2, Kinesis, ELK, RDS) GIT/Github CI/CD (Concourse and Jenkins) Docker Database systems: PostgreSQL, MongoDB/DocumentDB,... 
    Full time

    JConnect Infotech

    Philadelphia, PA
    1 day ago
  • $200k - $250k

     ...fraud detection and security engineering, and every release is filed with...  ...is seeking a Lead Backend Software Engineer to own the architecture...  ...platform. This includes the Java services that process...  ...Boot expertise, including REST APIs and microservices Experience... 
    Temporary work
    Remote work

    PKR

    Philadelphia, PA
    9 days ago
  •  ...require 5-8 years of experience, specializing in iFlow development, API management, and Groovy scripting, with a strong focus on security...  ..., Event Mesh). *Scripting: Proficiency in Groovy scripting or Java. *Platforms: Deep understanding of SAP S/4HANA and SAP... 
    Remote work

    Covetit

    Philadelphia, PA
    2 days ago
  •  ...Job Description Job Description Job Title: Senior AI Software Engineer – Java Location: Remote (U.S.) Employment Type: Contract (W2...  ...payment-integrity organization. You will ship Spring Boot APIs and microservices, review AI-generated code, and integrate with... 
    Contract work
    Remote work

    ZipStaff Inc.

    Blue Bell, PA
    2 days ago
  •  ...staffing experts can help you find the best job for you. Senior Java Developer Location: Remote/CA Contract: 6 months (the client does...  ...minimal supervision Possess an excellent understanding of the Software Development Life Cycle Possess excellent analytical skill Possess... 
    Permanent employment
    Contract work
    Remote work

    Tekfortune Inc

    Philadelphia, PA
    5 days ago
  • $105.1k - $164.13k

    Responsibilities Noblis MSD is seeking a Senior Java Developer to support a large-scale software project for U.S. Navy programs. This is an onsite position...  ...Center Philadelphia Division (NSWCPD) by providing engineering, software development, systems integration,... 
    Full time
    Contract work
    Part time
    Local area
    Remote work

    Noblis

    Philadelphia, PA
    2 days ago
  •  ...Senior DevOps Engineer We are looking for a Senior DevOps Engineer...  ...higher in Computer Science, IT, software engineering, or a related...  ...workflows with AI agents, LLM APIs. Must be a US Citizen or Green...  ...higher-level language such as Java or C++. Ability to create project... 
    Permanent employment
    Full time
    Work at office
    Worldwide
    2 days per week

    Clarivate

    Philadelphia, PA
    4 days ago
  • $158.5k - $275k

     ...domains in the interest of national security. Job Title: Lead Software Engineer - Maritime Sonar Systems Job Code: 42916 Job Location:...  ...languages such as Rust Software engineering pipelines RESTful API service design Real time embedded software development &... 
    Local area
    Relocation package
    Flexible hours

    Harris Corporation

    Camden, NJ
    2 days ago
  •  ...Backend Software Engineer Bainbridge Health unlocks the full value of pharmacy data to enhance the safety, efficiency and reliability of...  ...tools (e.g., Please, Bazel, Buck, or Pants). Architecture & APIs: Experience building web services using OpenAPI.... 
    Flexible hours

    Bainbridge Health

    Philadelphia, PA
    4 days ago
  •  ...Job Description Job Description Description: We are seeking a skilled Java Software Developer to join our engineering team. In this role, you will be responsible for the full software development lifecycle, from concept and design to testing and deployment. You will... 

    EHS TECHNOLOGIES CORPORATION

    Moorestown, NJ
    26 days ago
  •  ...following skill set are encouraged to apply. ~5+ years of .Net Development experience that includes recent work with.Net, C# and ReactJS ~ Hands on experience with SQL, Oracle, MS SQL ~ Experience with Azure cloud services ~ Strong problem-solving and analytical... 

    Liberty Personnel Services, Inc.

    Philadelphia, PA
    4 days ago
  • $27 - $50 per hour

     ...Mobile. We're a small, tight-knit group of engineers, mostly in our Philadelphia office, with...  ...Out-of-Home (DOOH) advertising. It's the software that plans, buys, delivers, and measures...  ...backend, or testing concepts (React, REST APIs, SQL) is a plus Curious and... 
    Summer work
    Internship
    Summer internship
    Work at office
    Local area
    Immediate start
    Remote work
    Relocation package

    T-Mobile

    Philadelphia, PA
    5 days ago
  • $105.79k - $141.05k

     ...join us today. The Role Red Team - Lead Information Security Engineer The Lead Information Security Engineer within Product and...  ...assessments across infrastructure, applications, cloud platforms, APIs, databases, and identity systems. Direct Advanced Cyber Exercises... 
    Full time
    Temporary work
    Remote work

    Lumen

    Philadelphia, PA
    5 days ago
  • $114.98k - $160k

     ...Developer to join the Product Engineering Unit as a key member of the...  ...hands-on AWS experience, strong software engineering fundamentals, and...  .... Develop and maintain APIs, integrations, and distributed...  ...enterprise web applications using Java, Spring Boot, JPA, Jakarta EE... 
    Work experience placement
    Work at office
    Local area
    Remote work

    NBME

    Philadelphia, PA
    16 days ago
  • $27 - $50 per hour

     ...What It's Like Our Quality Engineering team sits within Vistar Media...  ...how automation fits into the software development lifecycle. Your...  ...JavaScript, TypeScript, Python, or Java through coursework, personal...  ...testing concepts, REST APIs, or Agile methodologies is a... 
    Internship
    Summer internship
    Local area
    Immediate start
    Relocation package

    T-Mobile

    Philadelphia, PA
    4 days ago
  •  ...also guide other developers on the team. Superior Salesforce development skills, including Apex code/classes, Visualforce, REST, APIs, XML, Javascript, CSS, and HTML. Understanding of all aspects of Salesforce, including Sales Cloud Professional experience in a... 
    Hourly pay
    Contract work
    Remote work

    Judge Group, Inc.

    Philadelphia, PA
    2 days ago
  •  ...Job Title: Agentic AI / MCP Lead Engineer Location: Philadelphia ,New York, USA Experience...  ...connectors for business applications, APIs, databases, and enterprise platforms....  ...AI & LLM Engineering ~6+ years of software engineering experience with 3+ years in GenAI... 
    Hourly pay
    Contract work

    Incubit

    Philadelphia, PA
    1 day ago
  •  ...Looking for a Python Developer that is experienced in data engineering principles using Python and Spark. The ideal candidate would have...  ...Hands On Experience candidate has done, not what team has done Java - Springboot Drools or similar library for decision rules Working... 

    Software Technology Inc

    Blue Bell, PA
    1 day ago
  •  ...Job Description We are looking for a Java Developer with experience in building high...  ...applications. You will be part of a talented software team that works on mission-critical...  ...BS/MS degree in Computer Science, Engineering or a related subject Proven hands-on... 
    Work experience placement

    Forhyre

    Philadelphia, PA
    26 days ago
  •  ...IAM Software EngineerValorem Reply, part of the Reply Network, is a leader in security-focused...  ...complex digital world.As an IAM Software Engineer, you will help to drive the evolution of...  ...security services.Utilize Ping REST APIs and scripting (e.g., Python, Bash) to automate... 

    Reply

    Philadelphia, PA
    2 days ago
  • $85k - $115k

     ...Advanced Software Engineer ProSight Financial Association, a leading industry organization, is seeking an experienced and results-driven...  ...orchestration tools like Kubernetes. ~ Solid understanding of RESTful APIs and asynchronous programming patterns. ~ Strong experience... 
    Work at office
    Remote work
    Flexible hours

    RMA PA

    Philadelphia, PA
    1 day ago
  • $50 - $60 per hour

     ...ideal candidate will have strong OneShield, Java, and P&C insurance domain experience,...  ...with internal and external systems using APIs and web services. Support production release...  .... Required Qualifications 10 years of software development experience, with at least 8 years... 
    Remote job
    Flexible hours

    NTT DATA, Inc.

    Bala Cynwyd, PA
    2 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to ReactJS Java API Software Engineer. Be the first to apply!