Senior Developer: Technical Problem Design, AI Systems

Posted yesterday

Worldwide

Needs to hire 3 Freelancers
Summary

We're looking for a senior, production-grade engineers to design hard, real-world technical challenges - and working reference solutions - used to evaluate and improve advanced AI coding systems. This isn't building apps or writing tickets. You'll be authoring self-contained technical problems with a rigorous verification component, then stress-testing your own work to make sure it holds up. It's part engineering, part puzzle design, part QA mindset. If you've spent years shipping real software at a real company (not just solo/agency client work) and you're the person on your team who spots the edge case everyone else missed, this is worth a look. What we're looking for: - 5+ years professional experience, including meaningful time at a company or on a large-scale platform/product - not just freelance/agency work. We want people who've dealt with real production constraints, real on-call pain, real "the spec was wrong" moments. - Relevant certifications a plus (AWS, GCP, Azure, security certs like OSCP/CISSP, or similar recognized credentials in your domain) - not required, but a good signal. - Deep expertise in one specific area - backend, distributed systems, security, embedded/hardware, data infra, ML systems, or similar. Depth beats breadth here. - Comfortable with Docker, git, CLI workflows as daily tools, not a stretch skill. - The instinct to write things precisely - if you've ever caught yourself rewriting a Jira ticket because two people read it differently, you already have the right brain for this. - Self-directed. You'll get a toolkit and guardrails, not a manager checking in hourly. The setup: - $25–45/hr depending on experience and domain, we can discuss it flexibly - Heavy, ongoing volume - this isn't a one-off gig - Real path to full-time for people who are good at it - Fully remote, flexible hours - No AI/ML background required - we'll bring you up to speed on the specifics live. Your engineering judgment is the actual product here. Apply with: your strongest technical domain, where you got your production experience (company/platform), and a quick example of a genuinely ambiguous or hard-to-pin-down technical problem you had to sort out. Skip the generic cover letter - that example tells us more than a resume will. Serious candidates starting proposal with "Howdy" only. I'll review all proposals and if you're a good fit, you'll definitely get my message to have a next step discussion.

  • More than 30 hrs/week
    Hourly
  • 6+ months
    Duration
  • Expert
    Experience Level
  • $25.00

    -

    $47.00

    Hourly
  • Remote Job
  • Complex project
    Project Type

Contract-to-hire opportunity

This lets talent know that this job could become full time.
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Skills and Expertise
Mandatory skills
Docker
Python
Web Development
Activity on this job
  • Proposals:20 to 50
  • Last viewed by client:yesterday
  • Interviewing:
    4
  • Invites sent:
    6
  • Unanswered invites:
    2
About the client
Member since Jun 8, 2026
  • Argentina
    Buenos Aires12:32 AM

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