JavaScript Engineer

Key Responsibilities

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

Requirements

• 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).

Qualifications

• 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.
• Experience evaluating frontend logic, async patterns, and state management.