Senior Full-Stack Software Engineer (Remote, Contract)

About the role

We are looking for a senior full‑stack software engineer to develop, modify, and debug both front‑end and back‑end components of our applications. This contract role is remote and offers flexible weekly hours between 10 and 40.

Key responsibilities

• Develop, modify, and debug front‑end and back‑end application components.
• Implement user‑facing features and the supporting services, APIs, and data models.
• Trace requests and data across browsers, front‑end apps, APIs, services, databases, and external integrations.
• Work within unfamiliar repositories to understand existing architecture.
• Diagnose failures involving application state, API contracts, authentication, persistence, networking, and deployment.
• Evaluate and improve code written in multiple programming languages.
• Review AI‑generated solutions for correctness, completeness, performance, security, and maintainability.

Required profile

• Strong professional experience developing production full‑stack applications.
• Hands‑on experience with both front‑end and back‑end engineering.
• Production experience with multiple programming languages.
• Strong knowledge of browser applications, APIs, application state, databases, and service integration.
• Ability to work effectively in unfamiliar codebases and contribute to overall software architecture.
• Strong debugging and technical problem‑solving skills.