Cyber Security Engineer | Remote - Contract

Xperteez Technology Pvt Ltd; United States; Remote; USD 55,000 - 110,000; Full time

Job summary

Xperteez Technology Pvt Ltd is seeking Cyber Security Engineers to contribute technical expertise on a remote, contractor basis (~15 hrs/week). You'll help train next-generation AI systems by applying domain knowledge to real-world inputs, focusing on security, performance, and reliability.

Responsibilities include analyzing, debugging, and resolving bugs across codebases, performing security assessments, and implementing features in languages like Python3, Java, Rust, C++, and TypeScript, while

Qualifications

• Proven experience debugging, bug fixing, and backend development for complex systems.
• Strong background in cybersecurity practices, including pentesting, security audit, and vulnerability assessment.
• Ability to communicate complex technical findings clearly and concisely.

Responsibilities

• Analyze, debug, and resolve software bugs and vulnerabilities across diverse codebases.
• Implement new features and enhance existing functionality in projects using Python3, Java, Rust, Go, C++, or TypeScript.
• Refactor legacy code to improve maintainability, security, and performance.
• Perform codebase audits, penetration testing, and other security assessments to identify and mitigate risks.
• Contribute to backend development and optimize application performance for scalability and security.
• Document findings, suggest improvements, and provide real-world insights to improve AI training datasets.

Skills

Python3

JAVA

Rust

Algorithms

Basics

C++

TypeScript

bug fixing

feature implementation

codebase refactoring

performance optimization

pentesting

Security audit

cybersecurity

Tools

Go

Job description

Job Type: Contractor (~15 hrs a week) Location: Remote Schedule: Flexible, you pick the hours and days (including weekends if desired)

We are selecting Cyber Security Engineers to contribute technical expertise to a dynamic customer project. 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.

Required Skills

• Python3
• JAVA
• Rust
• Algorithms
• Basics
• C++
• Typescript
• bug fixing
• feature implementation
• codebase refactoring
• performance optimization
• pentesting
• Security audit
• cybersecurity

What we're looking for:

• Analyze, debug, and resolve software bugs and vulnerabilities across diverse codebases.
• Implement new features and enhance existing functionality in projects using Python3, Java, Rust, Go, C++, or TypeScript.
• Refactor legacy code to improve maintainability, security, and performance.
• Perform codebase audits, penetration testing, and other security assessments to identify and mitigate risks.
• Contribute to backend development and optimize application performance for scalability and security.
• Document findings, suggest improvements, and provide real-world insights to improve AI training datasets.

Preferred Qualifications:

• Expertise in one or more languages: Python3, Java, Rust, Go, C++, or TypeScript.
• Proven experience in debugging, bug fixing, and backend development for complex systems.
• Strong background in cybersecurity practices, including pentesting, security audit, and vulnerability assessment.
• Proficiency in algorithms, codebase refactoring, and optimizing software for performance and security.
• Ability to communicate complex technical findings clearly and concisely.
• Familiarity with secure software development lifecycles and modern threat landscapes.
• Experience contributing to AI-related or data-driven projects is a plus, but not required.

Compensation Structure

Compensation is output-based; experts are paid per task that meets the project specifications. The time required to complete work may vary depending on the expert’s experience and workflow. Minimum submission requirements apply.

Experts must submit a minimum of tasks per week.

Start Timeline & Availability

We typically fill roles within 48 hours and are looking for experts ready to jump in right away. If selected, we expect you to start your first tasks within 24–48 hours of completing onboarding.

Originally posted on Himalayas