Full Stack Developer (Python/JavaScript)-Onsite, NJ

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• Global (English) Change region Global site Americas United States (English) Canada (French) Canada (English) Brazil (Portuguese) Latin America (Spanish) India India (English) Europe, Middle East, and Africa UKI (English) France (French) Spain (Spanish) The Netherlands (Dutch) Germany (German) All other countries (English) Asia Pacific and Japan China (Chinese) Japan (Japanese) Thailand (Thai) All other countries (English) Saved Jobs 0 Join our talent community Full Stack Developer (Python/JavaScript)-Onsite, NJ 00067999442 Date published Mar 25 2026 Location Mount Laurel / United States Job category Digital Work model Work from Office Roles & Responsibilities 1. Application Development & Architecture Design, develop, and maintain full-stack web applications using Python frameworks (Django, Flask, FastAPI) for backend services Build responsive, dynamic front-end interfaces using ReactJS / VueJS / Angular with component-based architecture Develop and maintain API-driven web applications with RESTful and GraphQL endpoints Implement Material Design and Bootstrap frameworks for consistent, modern UI/UX across applications Write clean, maintainable, well-documented, and testable code following industry best practices 2. Database Design & Management Design, optimize, and maintain database schemas using MySQL and/or MongoDB Write complex SQL queries, stored procedures, and database migrations Perform query optimization, indexing strategies, and database performance tuning Ensure data integrity, backup strategies, and disaster recovery planning 3. Testing & Quality Assurance Develop and execute comprehensive test plans, test cases, and test strategies for web applications Implement automated testing frameworks using Python (pytest, unittest, Selenium, Playwright) Perform functional, regression, integration, performance, and API testing Set up and maintain CI/CD pipelines with automated test suites Conduct code reviews and enforce coding standards across the team Identify, document, and track defects through resolution using bug tracking tools (JIRA, Azure DevOps) 4. API Development & Integration Design, develop, and test RESTful APIs and microservices Create and maintain API documentation (Swagger/OpenAPI) Integrate third-party APIs and services into existing applications Implement API authentication, authorization, and security best practices (OAuth2, JWT) 5. Legacy System Support (PHP/JavaScript/jQuery) Maintain and enhance existing PHP-based web applications Work with legacy JavaScript/jQuery codebases, refactoring where appropriate Migrate legacy systems to modern frameworks and architectures incrementally 6. Collaboration & Communication Participate in Agile/Scrum ceremonies - sprint planning, daily standups, retrospectives, and demos Collaborate with cross-functional teams including product owners, designers, and DevOps engineers Provide technical mentorship and guidance to junior developers and analysts Communicate technical concepts effectively to both technical and non-technical stakeholders Create and maintain technical documentation, architecture diagrams, and runbooks 7. Technical Specifications & Design Participate in design reviews and contribute to technical specifications Translate business requirements into technical solutions and detailed design documents Evaluate and recommend new technologies, tools, and frameworks to improve development efficiency Ensure applications meet non-functional requirements - performance, scalability, security, and accessibility 8. DevOps & Deployment Support application deployment processes and environment management Work with containerization tools (Docker) and orchestration platforms Monitor application health, troubleshoot production issues, and implement fixes Maintain version control best practices using Git (branching strategies, pull requests, code reviews) About Cognizant's IoT Practice: Intelligent, IoT-enabled products will soon result in the proliferation of data and disrupt virtually all industries. To be successful, both large and small companies must leverage IoT capabilities by designing modern products that fundamentally connect people with processes. Within Cognizant IOT, we engineer industry-aligned, IoT-enabled products that merge industry needs with human drivers. Our intelligent products will revolutionize experiences and result in exciting, transformative outcomes. Without human-centered thinking, connected products are just standalone things-but with it, our modern connected products facilitate a unified way of life enjoyed by all. Salary and Other Compensation: The annual salary for this position is between $92,000 - $118,000 + Bonus depending on experience and other qualifications of the successful candidate. This position is also eligible for Cognizant's discretionary annual incentive program, based on performance and subject to the terms of Cognizant's applicable plans. Benefits: Cognizant offers the following benefits for this position, subject to applicable eligibility requirements: Medical/Dental/Vision/Life Insurance Paid holidays plus Paid Time Off 401(k) plan and contributions Long-term/Short-term Disability Paid Parental Leave Employee Stock Purchase Plan Disclaimer: The salary, other compensation, and benefits information is accurate as of the date of this posting. Cognizant reserves the right to modify this information at any time, subject to applicable law. Please note, this role is not able to offer visa transfer or sponsorship now or in the future Applications will be accepted until April 19th , 2026 LI#- #LI-SC6 The Cognizant community: We are a high caliber team who appreciate and support one another. Our people uphold an energetic, collaborative and inclusive workplace where everyone can thrive. Cognizant is a global community with more than 300,000 associates around the world. We don't just dream of a better way - we make it happen. We take care of our people, clients, company, communities and climate by doing what's right. We foster an innovative environment where you can build the career path that's right for you. About us: Cognizant is one of the world''s leading professional services companies, transforming clients'' business, operating, and technology models for the digital era. Our unique industry-based, consultative approach helps clients envision, build, and run more innovative and efficient businesses. Headquartered in the U.S., Cognizant (a member of the NASDAQ-100 and one of Forbes World's Best Employers 2025) is consistently listed among the most admired companies in the world. Learn how Cognizant helps clients lead with digital at www.cognizant.com Cognizant is an equal opportunity employer. Your application and candidacy will not be considered based on race, color, sex, religion, creed, sexual orientation, gender identity, national origin, disability, genetic information, pregnancy, veteran status or any other characteristic protected by federal, state or local laws. Disclaimer: Compensation information is accurate as of the date of this posting. Cognizant reserves the right to modify this information at any time, subject to applicable law. Applicants may be required to attend interviews in person or by video conference. In addition, candidates may be required to present their current state or government issued ID during each interview. Apply now Save Saved Share Join our talent community Haven't found the right opportunity yet? Receive the latest updates on job opportunities, recruitment events and company news tailored just for you. 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