Software Engineer – Backend (Remote)

VaultKey Global Recruitment; India; On-site; INR 1,000,000 - 2,100,000; Full time

Job summary

VaultKey Global Recruitment is seeking a backend-focused engineer to help train next-generation AI systems. You’ll leverage your expertise to shape how models learn and perform through high-quality real-world input.

No prior AI experience is required; domain knowledge and strong programming fundamentals are what matter. Flexible schedule and autonomous work style are encouraged.

Qualifications

• Strong backend experience with scalable services and APIs.
• Proven ability to debug, optimize performance, and write automated tests.
• Solid code review instincts and teamwork in codebases.

Skills

Backend development

API design

Java

Node.js

Go

Rust

Typescript

Python

Job description

Schedule: Flexible and autonomous, you pick the hours and days (including weekends if desired)

Job Summary: In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input. No prior experience in AI is required — your domain knowledge is what matters.

What we're looking for

• Strong backend experience in Java, Node.js, Go, Rust, Typescript, Python, C++ or similar
• A track record building scalable services and APIs
• Comfort with debugging, performance work and automated testing
• Solid code review instincts

Preferred Qualifications

• Proven experience in backend development, with a track record of delivering high-quality and performant projects.
• Demonstrated success in identifying and resolving software bugs and system bottlenecks.
• Experience with codebase refactoring and implementing complex features in large-scale applications.
• Strong understanding of algorithms, data structures, and foundational computer science concepts.
• Excellent analytical, problem-solving, and technical communication skills.

Process

• Apply to the role, filling out the screening questions
• Complete AI Interview (approx. 30 minutes)