Javascript - Senior Developers - AI Training - Jacksonville, USA

Far Coder; Jacksonville (FL); Hybrid; USD 25,000 - 40,000; Full time

Job summary

Prolific Academic Ltd is hiring for a remote Senior JavaScript Developer to assist AI training in Jacksonville, USA. The role focuses on building scalable web apps with JavaScript/TypeScript using React, Vue, or Angular, and testing with Jest and Cypress. This is a full-time, remote position with a competitive pay structure.

You will evaluate AI-generated code, validate logic, and conduct tests across Node.js or browser environments, contributing to high-quality software for AI tasks.

Qualifications

• Education: a BS, MS, or PhD in Computer Science, Software Engineering, or a closely related technical field.
• Professional Experience: building scalable web apps using JavaScript/TypeScript.
• Coding Proficiency: solve LeetCode Medium to Hard problems in JavaScript.
• Deep Domain Knowledge: event loop, closures, prototypical inheritance, async patterns.
• Code Quality: clean code with modularity, readability, ES6+ standards.
• Attention to Detail: spot memory leaks, security issues in model code.

Responsibilities

• Evaluate Code Accuracy: review AI-generated JS/TS code for correctness and best practices.
• Validate Logic & Reasoning: audit AI explanations for complex algorithms.
• Conduct Execution Testing: run scripts in Node.js/Browser consoles.
• Annotate Model Performance: identify inefficient or deprecated methods.
• Refine Technical Logic: provide feedback on frontend/backend architectures.

Skills

JavaScript

TypeScript

React

Node.js

GraphQL

Vue

Angular

REST

ES6+

Jest

Education

BS/MS/PhD in Computer Science or related field

Tools

Jest

Cypress

Webpack

Vite

Job description

# Remote Javascript - Senior Developers - AI Training - Jacksonville, USA Job at Prolific Academic LtdUSAan hour agoFull TimeUSA$25000 - $40000 USDJavaScriptTypeScriptReactNode.jsGraphQLVueAngularJavaRESTCypressES6Jest“When applying, mention the word FarCoder to show you’ve read the job post completely. Employers can look for these words to identify genuine, thoughtful applicants and avoid spam.”## Job OverviewProlific Academic Ltd is hiring a remote candidate for Javascript - Senior Developers - AI Training - Jacksonville, USA. This is a full time position. Work location: USA.The role typically involves technologies such as JavaScript, TypeScript, React, Node.js, GraphQL, Vue.This role involves building user interfaces using technologies such as React, Vue, Angular.## Key Responsibilities* Education: a BS, MS, or PhD in Computer Science, Software Engineering, or a closely related technical field.* Professional Experience: professional experience building scalable web applications using JavaScript/TypeScript.* Coding Proficiency: ability to solve LeetCode Medium to Hard-level problems in JavaScript independently.* Deep Domain Knowledge: expert understanding of the Event Loop, closures, prototypical inheritance, and asynchronous patterns (Promises, async/await).* Code Quality: a high standard for clean code, including modularity, readability, and adherence to modern ES6+ standards.* Attention to Detail: ability to spot subtle logical flaws, memory leaks, or security vulnerabilities (e.g., XSS, prototype pollution) in model-generated code.## Required Skills### Primary Skills* JavaScript* TypeScript* React* Node.js* GraphQL* Vue### Secondary Skills* Angular* Java* REST* Cypress* ES6* JestSkills required for this role include JavaScript, TypeScript, React, and related tools for day-to-day development.## Job Details* **Employment Type:** Full Time* **Location:** USA* **Salary:** $25000 – $40000 USD## Tech StackJavaScript, TypeScript, React, Node.js, GraphQL, Vue, Angular, Java, REST, Cypress, ES6, Jest## Role details## **JavaScript Specialist- AI Training**#### ***About Prolific***Prolific is not just another player in the AI space – we are building the biggest pool of quality human data in the world.Over 35,000 AI developers, researchers, and organizations use Prolific to gather data from paid study participants with a wide variety of experiences, knowledge, and skills.#### #### ***The role***We’re looking for **JavaScript Experts** to join our Expert Network to help train and evaluate cutting-edge AI models using real engineering expertise. If you have the necessary experience, we’ll send you a quick 10- to 15-minute test to assess your skills and suitability for AI tasks. If successful, you’ll be invited to join Prolific as a participant, where you’ll get paid to train and evaluate powerful AI models.Researchers looking for your skills tend to pay up to **$50 per hour**. You must be prepared to complete paid tasks that require one hour of uninterrupted work, though many are shorter.#### #### ***What you’ll bring******What you'll be doing in the role**** **Evaluate Code Accuracy:** review AI-generated JavaScript and TypeScript code for functional correctness and adherence to best practices.* **Validate Logic & Reasoning:** audit the step-by-step explanations provided by AI for complex algorithmic solutions to ensure they are logically sound.* **Conduct Execution Testing:** execute model-generated scripts in appropriate environments (Node.js or Browser consoles) to verify performance and output.* **Annotate Model Performance:** identify areas where a model provides inefficient solutions, deprecated syntax, or hallucinated library methods.* **Refine Technical Logic:** provide structured feedback on how models reason through frontend or backend architecture discussions.#### ***Key Technologies**** **Core Language:** expert mastery of **JavaScript (ES6+)** and **TypeScript**.* **Frameworks:** extensive experience with **React**, **Node.js**, **Vue**, or **Angular**.* **Testing & Tools:** proficiency with **Jest**, **Cypress**, **Webpack**, and **Vite**.* **Backend & API:** strong understanding of RESTful APIs, GraphQL, and server-side logic in a Node environment.#### ***Why Prolific is a great platform to join as a Participant***Joining our Expert Network will give you the chance to influence the AI models of the future using professional expertise. Once you pass our assessment, you can join Prolific in just 15 minutes, and start enjoying competitive pay rates, flexible hours, and the ability to work from home.We've built a unique platform that connects researchers and companies with a global pool of participants, enabling the collection of high-quality, ethically sourced human behavioural data and feedback. This data is the cornerstone of developing more accurate, nuanced, and aligned AI systems.We believe that the next leap in AI capabilities won't come solely from scaling existing models, but from integrating diverse human perspectives and behaviours into AI development. By providing this crucial human data infrastructure, Prolific is positioning itself at the forefront of the next wave of AI innovation – one that reflects the breadth and the best of humanity.### ***Links & Privacy***WebsiteYoutube### ***Privacy Statement***By submitting your application, you agree that Prolific may collect your personal data for recruiting and global organisation planning. Prolific's Candidate Privacy Notice explains what personal information Prolific may process, where Prolific may process your personal information, its purposes for processing your personal information, and the rights you can exercise over Prolific's use of your personal information.