Remote Full-Stack Developer

cyberzero; Canada; On-site; CAD 80,000 - 110,000; Part time

Job summary

A security-first technology company in Canada seeks a Full-Stack Developer for a contract role. The ideal candidate will improve foundational capabilities in an existing full-stack system by enhancing reliability, clarity, and correctness in both backend and frontend components. You will design, implement, and test application logic, handle data and API behavior, and apply solid engineering practices. Strong experience in software development and secure coding practices is essential. No formal certifications are required, but practical experience is vital.

Qualifications

• Strong experience in backend and frontend software development.
• Ability to design, debug, and improve complex, stateful systems.
• Solid understanding of secure coding practices, trust boundaries, and data handling.
• Experience with APIs, system integration, and reliability concerns.
• Familiarity with cloud-hosted environments and operational constraints.
• Comfortable working independently with clear objectives and acceptance criteria.

Responsibilities

• Design and implement application logic.
• Maintain and improve data handling and API behavior.
• Identify and reduce system fragility.
• Apply sound engineering practices throughout the stack.

Skills

Backend software development

Frontend software development

Secure coding practices

API development

System integration

Cloud-hosted environments

Job description

cyberzero is a security-first technology company focused on protecting critical systems and long-lived data in complex environments.

Our work spans security architecture, cloud hardening, Zero Trust design, API security and cryptographic analysis. We also operate at the leading edge of post-quantum cryptography and cryptographic lifecycle risk, helping organizations understand where cryptography exists, how it is used, and how it ages over time.

We operate vendor-agnostically and prioritize correctness, confidentiality, and operational reality over tooling or checklists.

Role Description

We are seeking a Full-Stack Developer for a contract engagement based in Canada. The role is focused on strengthening foundational capabilities in an existing full-stack system. Work will involve improving reliability, clarity, and correctness across both backend and frontend components.

Responsibilities

Designing, implementing, testing, and maintaining application logic; improving data handling and API behavior; identifying and reducing system fragility; and applying sound engineering practices throughout the stack.

Qualifications

• Strong experience in backend and frontend software development
• Ability to design, debug, and improve complex, stateful systems
• Solid understanding of secure coding practices, trust boundaries, and data handling
• Experience with APIs, system integration, and reliability concerns
• Familiarity with cloud-hosted environments and operational constraints
• Comfortable working independently with clear objectives and acceptance criteria

Formal certifications are not required. Practical experience, sound judgment, and security awareness matter more.

Seniority level

Mid-Senior level

Employment type

Contract

Job function

Engineering and Information Technology. Industries: IT Services and IT Consulting