JavaScript Developer Contractor: 3-5 years (Intermediate)

SGF Global Inc; Louisville (KY); On-site; USD 83,000 - 124,000; Part time

Job summary

SGF Global is seeking a JavaScript Developer Contractor in Louisville, KY to contribute to web applications, building and maintaining front-end and back-end components with JavaScript and Node.js, and collaborating with designers and developers to enhance user interfaces. The role emphasizes RESTful APIs, Express, testing, debugging, and code reviews, with a focus on performance and quality.

Ideal candidates have 3–5 years in Node.js, API design, and strong database skills; healthcare experience

Qualifications

• 3–5 years of Node.js experience.
• 3–5 years API development experience.
• 3–5 years JavaScript experience.
• 4+ years Node.js and Express experience.
• Strong RESTful API design and JSON schema validation.
• Strong DB design, indexing and query optimization.

Responsibilities

• Develop and maintain front-end and back-end components of web applications using JavaScript.
• Collaborate with designers and other developers to implement user interfaces and improve user experience.
• Conduct testing and debugging to ensure functionality and performance of web applications.
• Participate in code reviews to provide constructive feedback.
• Stay updated with latest JavaScript frameworks and libraries to implement improvements.

Skills

Node.js

API

JavaScript

Express

REST API

Database design

Tools

Express

Job description

Job Title: JavaScript Developer Contractor

Location: Louisville, Kentucky, USA

Employment Type: Contract

About the Role

We are looking for a motivated and detail-oriented JavaScript Developer to join our client's team in the technology sector. In this role, you will contribute to the development and maintenance of web applications, collaborating with designers and developers to enhance user interfaces and experiences.

Responsibilities

• Develop and maintain front-end and back-end components of web applications using JavaScript.
• Collaborate with designers and other developers to implement user interfaces and improve user experience.
• Conduct testing and debugging to ensure the functionality and performance of web applications.
• Participate in code reviews to provide constructive feedback.
• Stay updated with the latest JavaScript frameworks and libraries to recommend and implement improvements.

Requirements

• Intermediate (3-5 years experience) in Node.js.
• Intermediate (3-5 years experience) in API - Application Programming Interface.
• Intermediate (3-5 years experience) in JavaScript.
• 4 years of professional experience with Node.js and Express.
• Strong grasp of RESTful API design, versioning, and JSON schema validation.
• Strong database skills, including schema design, indexing, and query optimization.

Preferred Qualifications (if any)

• Healthcare payer or provider industry experience.
• Familiarity with referral management, specialty recommendation, or prior authorization workflows.
• Exposure to healthcare data standards (HL7, FHIR, or X12 275/278) is a plus.
• Prior experience in a consulting or client-facing delivery environment.

Who We Are

SGF Global is an integrated talent solutions provider, offering staffing, recruitment, Employer of Record (EOR), nearshore, and consulting services across a wide range of industries in 35 countries. We’re a dynamic, people-first organization where fresh ideas are always welcome. Our culture is built on collaboration, innovation, and a genuine passion for helping people grow. At SGF Global, smiles are part of the dress code, and every voice matters.

Are you looking to join an organization where your ideas are valued, your growth is supported, and your work makes a global impact? We’re always looking for talented individuals who are ready to make a difference.