Software Engineer (Trajectory)

Talantir; France; Remote; EUR 86,000 - 160,000; Part time

Job summary

Talantir is seeking an independent contractor to annotate frontier-model trajectories across SWE tasks from open-source repositories. You will infer step-by-step reasoning, reconstructing how solutions are derived, using your problem-solving skills and full task context.

Remote work is fully supported; part-time commitment is 15-25 hours weekly with flexibility up to 40 hours. Start immediately for a 1-2 month engagement; payments processed weekly via Stripe or Wise.

Qualifications

• 2+ years of hands-on software engineering experience working with real-world codebases.
• Bachelor's degree in Computer Science, Software Engineering, or a related field (advanced degree preferred).
• Strong proficiency in Python, JavaScript, TypeScript, or similar commonly used open-source languages.
• Familiarity with Git workflows, pull requests, and issue tracking systems.
• Strong debugging and analytical skills.
• Ability to clearly articulate technical reasoning in structured written form.

Responsibilities

• Review model-generated code trajectories on realistic software engineering tasks.
• Reconstruct detailed reasoning steps that explain the solution process.
• Annotate key decision points, debugging logic, and problem-solving strategies.
• Analyze full task context, including codebases, issue descriptions, and test cases.
• Ensure annotations reflect accurate, realistic developer reasoning and technical soundness.
• Deliver structured, high-quality written explanations aligned with engineering best practices.

Skills

Python

JavaScript/TypeScript

Git workflows

Debugging

Technical writing

Education

Bachelor's degree in Computer Science, Software Engineering, or related field

Job description

Compensation

$70-$130 per hour

Location Requirements

• GBR
• USA
• CAN
• AUT
• BEL
• FRA
• DEU
• LIE
• LUX
• MCO
• NLD
• CHE
• BGR
• CZE
• HUN
• MDA
• POL
• ROU
• SVK

Requirements

You will work on annotating frontier-model trajectories across SWE-bench-style tasks derived from real-world open-source repositories. Since many closed-source models do not expose internal reasoning traces, this project focuses on reconstructing and annotating the reasoning process behind model-generated solutions.Using your own problem-solving expertise and the full technical context of each task, you will infer and articulate the underlying chain-of-thought that explains how a solution is derived step by step.

Key Responsibilities

• Review model-generated code trajectories on realistic software engineering tasks
• Reconstruct detailed reasoning steps that explain the solution process
• Annotate key decision points, debugging logic, and problem-solving strategies
• Analyze full task context, including codebases, issue descriptions, and test cases
• Ensure annotations reflect accurate, realistic developer reasoning and technical soundness
• Deliver structured, high-quality written explanations aligned with engineering best practices

Ideal Qualifications

• 2+ years of hands‑on software engineering experience working with real-world codebases
• Bachelor's degree in Computer Science, Software Engineering, or a related field (advanced degree preferred)
• Strong proficiency in Python, JavaScript, TypeScript, or similar commonly used open-source languages
• Familiarity with Git workflows, pull requests, and issue tracking systems
• Strong debugging and analytical skills
• Ability to clearly articulate technical reasoning in structured written form

Project Details

Start Date: Immediate

Duration: 1-2 months

Commitment: Part-time (15-25 hours per week, with flexibility up to 40 hours per week)

Fully remote with flexible scheduling

Contract & Payment Terms

Engagement will be structured as an independent contractor agreement

Work can be completed remotely on your own schedule

Projects may be extended, shortened, or concluded early based on performance and business needs

Work assignments will not involve access to confidential or proprietary information from any employer, client, or institution

Payments are processed weekly via Stripe or Wise based on services rendered

Visa sponsorship is not available; H1-B and STEM OPT candidates cannot be supported at this time