Software Engineer

Position:
Software Engineer

Type:
Contractor — ~15 hours/week

Compensation:
$30–$100/hour

Location:
Remote

About the Opportunity

Help train next-generation AI systems by creating challenging coding tasks and implementing
deterministic verifiers
that distinguish valid solutions from incorrect ones.
No prior AI experience is required
— your software engineering expertise is what matters.

Key Responsibilities
- Create realistic coding tasks involving
feature implementation and bug fixing
.
- Build deterministic verifiers that accept valid solutions and reject incorrect ones.
- Debug, test, optimize, and refactor code.
- Evaluate solutions using strong
code review and testing
practices.

Required Qualifications
- Strong backend experience with
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 judgment.





Preferred Qualifications
- Experience with
large-scale application development and refactoring
.
- Strong knowledge of
algorithms, data structures, and computer science fundamentals
.
- Experience designing test strategies, maintaining large test suites, or diagnosing flaky tests.
- Strong analytical, problem-solving, and technical communication skills.

Compensation
- $30–$100/hour, output-based.
- Approximately 100 positions available.
- Minimum weekly task submissions apply.
- Versátil scheduling, including weekends if desired.

Application Process

1. Submit your application and screening questions.
2. Complete a ~30-minute AI interview.
3. Complete the technical assessment, if required.
4. Hiring Manager review.

Start Timeline:
Selected experts are expected to begin their first tasks within
24–48 hours of onboarding
.

📌 Senior Software Engineer (España)
🏢 Synthires
📍 España