Javascript/ typescript Developer (freelance)

Deccan AI Experts; Chennai District; On-site; INR 1,704,780 - 2,428,020; Part time

Job summary

A pioneering technology company in Chennai seeks a knowledgeable backend developer with strong Node.js skills. Responsibilities include validating async behavior, reviewing pull requests, and collaborating with AI teams to enhance dataset quality. Ideal candidates will possess a deep understanding of event-loop mechanics and debugging frameworks like Jest or Mocha. This flexible freelancing role offers competitive hourly pay and the chance to work on impactful projects that drive innovation for societal benefit.

Qualifications

• Strong experience with Node.js, backend services, or full-stack JS/TS systems.
• Deep understanding of async/await, promises, microtasks vs macrotasks, and event-loop mechanics.
• Experience executing and debugging test suites using Jest, Mocha, or similar frameworks.
• Ability to reason about runtime behavior, async timing, and complex execution flows.
• Proficiency with Git workflows, code reviews, debugging tools, and large repositories.
• Strong analytical and reasoning skills for evaluating correctness and maintainability.

Responsibilities

• Validate patches involving async/await, promises, callbacks, and event-loop–dependent behavior.
• Analyze asynchronous execution flows, race conditions, timing issues, and side effects across modules.
• Review pull requests and simulated code changes for correctness, clarity, and long-term maintainability.
• Provide precise human feedback on logic, async behavior, and edge cases to support model training.
• Annotate differences between correct vs incorrect implementations, highlighting side effects and risks.

Skills

Node.js

Async/Await

Promises

Microtasks vs Macrotasks

Event-loop mechanics

Jest

Mocha

Git workflows

Debugging tools

Analytical skills

Job description

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Deccan AI Experts is a pioneering company founded by IIT Bombay and IIM Ahmedabad alumni, with a strong founding team from IITs, NITs, and BITS. We specialize in delivering high-quality human-curated data, AI-first scaled operations services, and more. Based in SF and Hyderabad, we are a young, fast-moving team on a mission to build AI for Good, driving innovation and positive societal impact.

Key Responsibilities

• Validate patches involving async/await, promises, callbacks, and event-loop–dependent behavior
• Analyze asynchronous execution flows, race conditions, timing issues, and side effects across modules
• Review pull requests and simulated code changes for correctness, clarity, and long-term maintainability
• Provide precise human feedback on logic, async behavior, and edge cases to support model training
• Label and assess code changes based on correctness, robustness, and adherence to best practices.
• Annotate differences between correct vs incorrect implementations, highlighting side effects and risks.
• Ensure annotations are precise, consistent, and aligned with defined quality guidelines
• Collaborate asynchronously with AI and data teams to improve annotation clarity and dataset quality

Required Skills & Experience

• Strong experience with Node.js, backend services, or full-stack JS/TS systems
• Deep understanding of async/await, promises, microtasks vs macrotasks, and event-loop mechanics
• Experience executing and debugging test suites using Jest, Mocha, or similar frameworks
• Ability to reason about runtime behavior, async timing, and complex execution flows
• Proficiency with Git workflows, code reviews, debugging tools, and large repositories
• Strong analytical and reasoning skills for evaluating correctness, side effects, and maintainability
• Comfortable reviewing PRs, analyzing stack traces, and working with production-grade code

Why Join Us?

• Work on high-impact projects that contribute to building AI for Good.
• Collaborate with top-tier engineers and domain experts from IITs, NITs, and BITS.
• Opportunity to grow in a fast-paced, innovation-driven environment.

NOTE: This will be a flexible freelancing opportunity. Pay will vary by project and typically is up to ₹1500 per hour.

Seniority level

• Not Applicable

Employment type

• Contract

Job function

• Information Technology

Industries

• IT Services and IT Consulting

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