

Javascript Developer
β - Featured Role | Apply direct with Data Freelance Hub
This role is for a Javascript Developer in Pennington, NJ (Hybrid, 3 days onsite). Contract duration is 12+ months at an independent consultant rate. Key skills include ReactJS, Node.js, MongoDB, and TypeScript. 8+ years of relevant experience required.
π - Country
United States
π± - Currency
$ USD
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π° - Day rate
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ποΈ - Date discovered
July 8, 2025
π - Project duration
More than 6 months
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ποΈ - Location type
Hybrid
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π - Contract type
Unknown
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π - Security clearance
Unknown
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π - Location detailed
Pennington, NJ
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π§ - Skills detailed
#Automation #Scala #GIT #Computer Science #GraphQL #Libraries #NoSQL #REST (Representational State Transfer) #TypeScript #Unit Testing #Jenkins #JSON (JavaScript Object Notation) #React #REST API #Ansible #MongoDB #JavaScript
Role description
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Position: React Developer
Location: Pennington, NJ (Hybrid role 3 days onsite 2 days remote)
Duration: 12+ month
Looking Independent Consultant Only
Primary Skill: ReactJS
Secondary Skill: Node.js
Tertiary Skill: MongoDB
Required Qualifications: ReactJS, TypeScript/JavaScript, NodeJS, UI Libraries β Kendo.
Job Description
Experience designing solutions and coordinating development releases.
β’ Expert level JavaScript/Typescript (Node.js), React js.
β’ 8+ years of hands-on experience of providing vision and leading the architecture, design and development of complex, highly scalable, Enterprise platforms and RESTful APIs.
β’ A deep understanding of computer science foundations including data structures, algorithms, and design patterns.
β’ Experience in building and consuming REST APIs using NPM/Node.js Express and related frameworks (such as Jest, OpenAPI) and processing data (JSON).
β’ Good understanding of, Babel, ES6 and Typescript.
β’ Good understanding on NodeJS asynchronous runtime.
β’ Experience in building applications using GraphQL on server side.
β’ Good understanding on JS/typescript concepts on callbacks and closures.
β’ Experience in using NoSQL (MongoDB) data models document, key-value & wide column, or graph model is plus.
β’ Expertise in performance profiling, ability to identify performance improvements and memory optimizations.
β’ Unit testing experience with tools like Jest, Karma and/or Jasmine.
β’ Experience CI/CD automation using tools such as Git /Jenkins/Ansible.
β’ A deep understanding of computer science foundations including data structures, algorithms, and design patterns.
β’ Experience in using NoSQL (MongoDB) data models document, key-value & wide column, or graph model is plus.