Senior JavaScript Full Stack Developer

Date Posted: 09/03/2026 Hiring Organization: Rose International Position Number: 506888 Industry: Biotech/Healthcare Job Title: Senior JavaScript Full Stack Developer Job Location: Chesterfield, MO, USA, 63005 Work Model: Hybrid Work Model Details: Hybrid -3 days onsite and 2 days remote Employment Type: Temporary FT/PT: Full-Time Estimated Duration (In months): 6 Min Hourly Rate($): 65.00 Max Hourly Rate($): 75.00 Must Have Skills/Attributes: Full Stack, JavaScript, React.JS Experience Desired: Experience in NodeJS (10 yrs); Exeprience in ReactJS (5 yrs); Experience in TypeScript (10 yrs); Exeprience in SQL queries (8 yrs) Required Minimum Education: Bachelor’s Degree Preferred Education: Master’s Degree **C2C is not available** Job Description Required Education Bachelor's degree in computer science or a similar technical field Preferred Education Master's degree in computer science, similar technical field Required Experience A minimum of 10 years of experience JavaScript - 10+ years Nodejs - 10+ years Reactjs - 5+ years AWS - 4+ years PostgreSQL - 5+ years Job Overview 5+ years of experience as a JavaScript full-stack developer Strong experience in ReactJS, NodeJS, and TypeScript Good programmer - able to write clean, maintainable, well-structured code, follow popular paradigms, good practices, and local guidelines. Experience in Cloud (preferably AWS - Lambdas, S3, SQS, SNS, Kafka, Step Functions). Experience with front-end web technologies (e.g., HTML5, CSS3, JavaScript) Unit testing using Jest, react-testing-library Experience building highly scalable REST APIs hosted on could environment Strong Experience designing databases in PostgreSQL Product-oriented – able to take a deep dive into the business domain, and partner with product experts to suggest improvements and pragmatic solutions Experience in working in a product-oriented agile organization Some flexibility to work with a global team across time zones Problem-solving skills, proactivity, and being a team player Willingness to learn, develop, & innovate**Only those lawfully authorized to work in the designated country associated with the position will be considered.****Please note that all Position start dates and duration are estimates and may be reduced or lengthened based upon a client’s business needs and requirements.** Benefits For information and details on employment benefits offered with this position, please visit here. Should you have any questions/concerns, please contact our HR Department via our secure website. California Pay Equity For information and details on pay equity laws in California, please visit the State of California Department of Industrial Relations' website here. Rose International is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, age, sex, sexual orientation, gender (expression or identity), national origin, arrest and conviction records, disability, veteran status or any other characteristic protected by law. Positions located in San Francisco and Los Angeles, California will be administered in accordance with their respective Fair Chance Ordinances. If you need assistance in completing this application, or during any phase of the application, interview, hiring, or employment process, whether due to a disability or otherwise, please contact our HR Department. Rose International has an official agreement (ID #132522), effective June 30, 2008, with the U.S. Department of Homeland Security, U.S. Citizenship and Immigration Services, Employment Verification Program (E-Verify). (Posting required by OCGA 13/10-91.).