Talent.com
JavaScript Engineer
JavaScript EngineerSuperAnnotate • Campbell, California, US
JavaScript Engineer

JavaScript Engineer

SuperAnnotate • Campbell, California, US
[job_card.variable_days_ago]
[job_preview.job_type]
  • [job_card.full_time]
  • [filters.remote]
[job_card.job_description]

As an hourly paid, fully remote JavaScript Engineer for AI Data Training, you will review complex AI-generated code and explanations or generate new ones, evaluate the reasoning quality and step-by-step problem-solving, and provide expert feedback that helps models produce answers that are accurate, logical, and clearly explained. You will assess solutions for accuracy, clarity, and adherence to the prompt, identify errors in methodology or conceptual understanding, fact-check information, write high-quality explanations and model solutions that demonstrate correct methods, and rate and compare multiple AI responses based on correctness and reasoning quality.

This role is with SME Careers, a fast-growing AI Data Services company and subsidiary of SuperAnnotate that provides AI training data for many of the world’s largest AI companies and foundation model labs. Your work will directly help improve the world’s premier AI models while giving you the flexibility of impactful, detail-oriented remote contract work.

Key Responsibilities :

  • Develop AI Training Content : Create detailed prompts in various topics and responses to guide AI learning, ensuring the models reflect a comprehensive understanding of diverse subjects.
  • Optimize AI Performance : Evaluate and rank AI responses to enhance the model's accuracy, fluency, and contextual relevance.
  • Ensure Model Integrity : Test AI models for potential inaccuracies or biases, validating their reliability across use cases.

Your Profile :

  • Minimum 2+ years of professional JavaScript experience in production environments.
  • Strong understanding of closures, async / await, prototype-based inheritance, and JavaScript event loop behavior, with deep proficiency in modern Vanilla JavaScript (ES6 / ES2015+).
  • Proven ability to evaluate correctness, readability, and performance of JavaScript code, including identifying subtle logic and edge-case issues.
  • Hands-on work experience in software engineering, preferably in roles involving code review, mentoring, or technical design discussions.
  • Significant experience using LLMs or AI coding assistants while programming, combined with a critical mindset for validating their output.
  • Excellent English writing skills, capable of producing clear, concise, and pedagogical technical explanations.
  • Strong proficiency with at least one major frontend framework (such as React, Angular, or Vue.js) or backend runtime (such as Node.js with Express or NestJS).
  • Minimum Bachelor’s degree in Computer Science or a closely related technical field.
  • Previous experience with AI data training, data annotation, or evaluation of AI-generated technical content is a strong plus; Minimum C1 English proficiency and a highly detail-oriented working style are required.
  • Preferred : contributions or merged PRs in JavaScript or TypeScript open-source projects, familiarity with bundlers and tooling (Webpack, Vite, Rollup), frontend–backend integration and Node.js runtime behavior, reviewing typed API layers, DTOs, or schema-driven designs, and experience evaluating frontend logic, async patterns, and state management.
  • [job_alerts.create_a_job]

    Engineer • Campbell, California, US

    [internal_linking.similar_jobs]
    Software Engineer, Web

    Software Engineer, Web

    Pinterest • Palo Alto, CA, United States
    [job_card.full_time]
    Millions of people around the world come to our platform to find creative ideas, dream about new possibilities and plan for memories that will last a lifetime. At Pinterest, we're on a mission to br...[show_more]
    [last_updated.last_updated_variable_days] • [promoted]
    Software QA Engineer

    Software QA Engineer

    Supermicro • San Jose, CA, United States
    [job_card.full_time]
    Supermicro is a Top Tier provider of advanced server, storage, and networking solutions for Data Center, Cloud Computing, Enterprise IT, Hadoop / Big Data, Hyperscale, HPC and IoT / Embedded customers...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Senior Software Engineer (Node.js / Nest.js + React)

    Senior Software Engineer (Node.js / Nest.js + React)

    Softwaremind • San Jose, CA, United States
    [job_card.full_time]
    Senior Software Engineer (Node.Working witha Scrum team of Engineers on a greenfield project.Developing software applications and solutions based on documented business and system requirements.Unde...[show_more]
    [last_updated.last_updated_variable_days] • [promoted]
    Full Stack Engineer

    Full Stack Engineer

    DataInsight • Santa Clara, CA, United States
    [job_card.full_time]
    Full Stack Engineer (Django + React).On-site / Hybrid (San Francisco).DataInsight is a fast-growing, well-funded startup with strong early traction within healthcare. Our platform is reshaping how c...[show_more]
    [last_updated.last_updated_variable_days] • [promoted]
    Staff Web App Development Engineer

    Staff Web App Development Engineer

    Fortinet • Sunnyvale, CA, United States
    [job_card.full_time]
    We are looking for a highly experienced Staff Web Developer with good expertise in Angular to help build, maintain, and scale modern web applications. You will be instrumental in leading GUI develop...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Software Development Engineer

    Software Development Engineer

    Fortinet • Sunnyvale, CA, United States
    [job_card.full_time]
    Design, develop, and maintain software components for current and future networking-related products with a focus on cloud-native environments. Architect and implement highly scalable software featu...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Full Stack Software Engineer (Python / React)

    Full Stack Software Engineer (Python / React)

    Arrayo • Hayward, CA, United States
    [job_card.full_time]
    We’re seeking a Full Stack Software Engineer with strong backend development skills in Python and frontend expertise in React. You’ll help design, implement, and scale full stack web applications th...[show_more]
    [last_updated.last_updated_variable_days] • [promoted]
    AppEx - Response Ops - Principal Backend Engineer (Node.js)

    AppEx - Response Ops - Principal Backend Engineer (Node.js)

    Elastic • Mountain View, CA, United States
    [job_card.full_time]
    Elastic, the Search AI Company, enables everyone to find the answers they need in real time, using all their data, at scale - unleashing the potential of businesses and people.The Elastic Search AI...[show_more]
    [last_updated.last_updated_variable_days] • [promoted]
    UI Software Engineer

    UI Software Engineer

    Cisco Systems, Inc. • San Jose, CA, United States
    [job_card.full_time]
    The application window is expected to close on : November 21, 2025.Job posting may be removed earlier if the position is filled or if a sufficient number of applications are received.The LIO (Lifecy...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Software Engineer II - Voice Client

    Software Engineer II - Voice Client

    Five9 • San Ramon, CA, US
    [job_card.full_time]
    Join us in bringing joy to customer experience.Five9 is a leading provider of cloud contact center software, bringing the power of cloud innovation to customers worldwide.Living our values everyday...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Software Engineer

    Software Engineer

    Cisco Systems, Inc. • Milpitas, CA, United States
    [job_card.full_time]
    Please note this posting is to advertise potential job opportunities.This exact role may not be open today but could open in the near future. When you apply, a Cisco representative may contact you d...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Senior Fullstack Engineer (NodeJS / Javascript / API)

    Senior Fullstack Engineer (NodeJS / Javascript / API)

    NetApp, Inc. • San Jose, CA, United States
    [job_card.full_time]
    We are seeking a skilled and innovative Software Developer to join our Analytics and Enablement engineering team.As a Full Stack Developer, you will be responsible for developing and maintaining Sa...[show_more]
    [last_updated.last_updated_variable_days] • [promoted]
    Frontend Engineer - React / Next.js | Equity & Benefits

    Frontend Engineer - React / Next.js | Equity & Benefits

    xAI • Palo Alto, CA, United States
    [job_card.full_time]
    A technology company located in Palo Alto is seeking an experienced Frontend Engineer to develop performant user interfaces using TypeScript and React. The role involves working closely with a motiv...[show_more]
    [last_updated.last_updated_variable_days] • [promoted]
    Fullstack Software Engineer

    Fullstack Software Engineer

    ProductNow • Palo Alto, CA, US
    [job_card.full_time]
    Build and ship end-to-end features across the stack, from frontend interfaces to backend services and APIs.Own projects through the full lifecycle – from early design discussions and technica...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Senior Full Stack Engineer ( Python and Node. js / TypeScript)

    Senior Full Stack Engineer ( Python and Node. js / TypeScript)

    Grid Dynamics • Mountain View, CA, United States
    [job_card.full_time]
    Senior Full Stack Engineer (Python and Node.We need a skilled Python Developer to help us solve challenging problems that affect our entire organization. You’ll build release frameworks, tools, infr...[show_more]
    [last_updated.last_updated_1_hour] • [promoted] • [new]
    Senior Full-Stack Engineer (React + Next.js + TypeScript)

    Senior Full-Stack Engineer (React + Next.js + TypeScript)

    Softwaremind • San Jose, CA, United States
    [job_card.full_time]
    Software Mind is seeking qualified candidates to fill the role of Senior Full-Stack Engineer (React / Next.In addition to a competitive salary rate and a positive work environment, we are committed t...[show_more]
    [last_updated.last_updated_variable_days] • [promoted]
    Senior Full Stack Engineer

    Senior Full Stack Engineer

    Cypress HCM • San Jose, CA, US
    [job_card.full_time]
    Senior Full Stack Engineer (Contract).Location : San Jose CA 95110 (Hybrid).Duration : 9 / 15 / 2025 to 3 / 13 / 2026.Develop and maintain full-stack applications using React, NextJS, Java, and Spring Boot.D...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Jr. Applications Engineer

    Jr. Applications Engineer

    Velo3D • Fremont, CA, US
    [job_card.full_time]
    At Velo3D, Applications Engineers bridge the gap between manufacturing, sales, and customer support teams.Applications Engineer will be working directly with senior engineers in preparing print fil...[show_more]
    [last_updated.last_updated_30] • [promoted]