Backend Security Engineer - Remote

YO AI Labs; United States; Remote; USD 96,000 - 165,000; Part time

Job summary

YO AI Labs is seeking a Senior Software Engineer to work on cybersecurity and backend tasks in a remote contractor role (~15 hrs/week). You will develop and audit secure backend services, implement features, and optimize performance while building deterministic verification systems for AI training tasks.

Key responsibilities include debugging complex software, refactoring code, and conducting security-focused work such as penetration testing and vulnerability assessment.

Qualifications

• Strong backend development experience across Java, Node.js, Go, Rust, TypeScript, Python, or C++.

Responsibilities

• Develop and debug complex software.
• Implement new features and resolve issues.
• Refactor and optimize existing codebases.
• Create realistic coding and security tasks.
• Develop reliable deterministic verification systems.
• Identify vulnerabilities and security risks.
• Apply strong algorithms and data structures.

Skills

Java

Node.js

Go

Rust

TypeScript

Python

C++

Algorithms

Penetration testing

Security auditing

Backend APIs

Job description

Senior Software Engineer - Cybersecurity & Backend

Job Type: Contractor (~15 hrs/week) Location: Remote Schedule: Flexible

Required Skills

• Python 3
• Java
• Rust
• TypeScript
• C++
• Algorithms & Data Structures
• Bug Fixing & Feature Implementation
• Codebase Refactoring
• Performance Optimization
• Penetration Testing
• Security Auditing

Job Summary

Work on challenging coding and security tasks designed to help train next-generation AI systems. You'll create realistic coding problems, implement features and bug fixes, and build deterministic verifiers to evaluate solutions.

What We’re Looking For

• Strong backend development experience in Java, Node.js, Go, Rust, TypeScript, Python, C++, or similar
• Experience building scalable services and APIs
• Strong debugging, performance optimization, and automated testing skills
• Solid code review and software engineering practices
• Experience with cybersecurity, penetration testing, vulnerability assessment, or security audits
• Familiarity with secure coding, AppSec, OWASP, and CWE is a plus

Responsibilities

• Develop and debug complex software
• Implement new features and resolve software issues
• Refactor and optimize existing codebases
• Create realistic coding and security tasks
• Develop reliable deterministic verification systems
• Identify vulnerabilities and potential security risks
• Apply strong algorithms, data structures, and software engineering principles

Preferred Qualifications

• Proven backend development experience
• Cybersecurity or security engineering background
• Experience with penetration testing or security audits
• Strong understanding of algorithms, data structures, and computer science fundamentals
• Excellent analytical, problem-solving, and technical communication skills

Originally posted on Himalayas