Sr. Full-Stack Software Engineer | $50-$100/hr Remote

Remotefolio; Brasil; Remote; BRL 378,000 - 756,000; Part time

Job summary

Remotefolio is seeking a Sr. Full-Stack Software Engineer for a contract, part-time, remote position. You will develop, modify, and debug both front-end and back-end components, and collaborate across unfamiliar codebases.

You will evaluate code in multiple languages, review AI-generated solutions for correctness and security, and help ensure maintainable, high-performance systems. This flexible, task-based role suits self-driven engineers seeking remote work.

Qualifications

• Experience building production-grade full-stack applications.
• Hands-on front-end and back-end development experience.
• Production experience with multiple programming languages.
• Strong debugging and problem-solving in unfamiliar codebases.

Responsibilities

• Develop, modify and debug front-end and back-end application components.
• Work inside unfamiliar repositories and understand existing application architecture.
• Evaluate and improve code written in multiple programming languages.
• Review AI-generated solutions for correctness, performance, security and maintainability.

Skills

Full-stack dev

Front-end & back-end

Multiple languages

Debugging skills

Job description

Position: Sr. Full-Stack Software Engineer

Type: Contract

Compensation: $50-$100/hour

Location: Remote

Commitment: Part-time, flexible, task-based

No prior AI experience required.

Role Responsibilities-

• Develop, modify and debug front-end and back-end application components.
• Work inside unfamiliar repositories and understand existing application architecture.
• Evaluate and improve code written in multiple programming languages.
• Review AI-generated solutions for correctness, performance, security and maintainability.

Requirements-

• Strong professional experience developing production full-stack applications.
• Meaningful hands-on experience with both front-end and back-end engineering.
• Production experience with multiple programming languages.
• Ability to work effectively in unfamiliar codebases, with strong debugging and problem-solving skills.