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Data Infrastructure Developer (C++)
Alignerr
Denver, CO
About The Role What if your deep C++ expertise could directly shape the infrastructure that powers the world's most advanced AI systems? We'...
$50.00 – $75.00/hr Apply Now
Research Scientist
Hedra
San Francisco, CA
Position Overview Hedra is building a world-class Physical AI research team to push the boundaries of action-conditioned world models and ge...
$200k – $325k/year Apply Now
Research Scientist
Hedra
San Francisco, CA
Hedra is building a world-class Physical AI research team to push the boundaries of action-conditioned world models and generative AI for phy...
$200k – $325k/year Apply Now
Senior, Data Scientist
Walmart
Sunnyvale, CA
Position Overview Commercialization Platforms and Enablement B2B Team at Walmart Global Tech is a group of data scientists, analysts, and en...
$117k – $234k/year Apply Now
Data Scientist III
Walmart
Sunnyvale, CA
Position Overview Commercialization Platforms and Enablement B2B Team at Walmart Global Tech is a group of data scientists, analysts, and en...
$117k – $234k/year Apply Now
(USA) Senior, Data Scientist
Walmart
Sunnyvale, CA
Position Overview Walmart Global Tech is seeking a Senior Data Scientist to join the Personalization team in Sunnyvale, focusing on developi...
$117k – $234k/year Apply Now
Senior Data Scientist
Navy Federal Credit Union
Pensacola, FL
Position Overview Provide independent data science, machine learning, and analytical insights using member, financial, and organizational da...
$99k – $156k/year Apply Now
Software Development Engineer - Credential API
ID.me
Mountain View, California
About this job Company Overview ID.me is the next-generation digital identity wallet that simplifies how individuals securely prove their ide...
$169k – $193k/year Apply Now
Sales Engineer
Finvari
Nashville, TN
Position Overview As a Sales Engineer, you'll bring your technical expertise to life through compelling product demos, consultative disc...
$140k – $160k/year Apply Now
Sales Engineer
Finvari
Seattle, WA
Position Overview As a Sales Engineer, you'll bring your technical expertise to life through compelling product demos, consultative disc...
$140k – $160k/year Apply Now
Data Infrastructure Developer (C++)

About The Role What if your deep C++ expertise could directly shape the infrastructure that powers the world's most advanced AI systems? We're looking for a Senior C++ Full-Stack Engineer...

$50.00 – $75.00/hr Apply Now

About The Role
  • What if your deep C++ expertise could directly shape the infrastructure that powers the world's most advanced AI systems? We're looking for a Senior C++ Full-Stack Engineer to build and optimize the high-performance data pipelines, annotation tooling, and evaluation systems that leading AI labs depend on every day.
  • This is a fully remote contract role with serious technical depth --- real production systems, meaningful engineering challenges, and direct collaboration with top AI research teams.
  • Organization: Alignerr
  • Type: Hourly Contract
  • Location: Remote
  • Commitment: 20--40 hours/week
What You'll Do
  • Design, build, and optimize high-performance C++ systems that power AI data pipelines and evaluation workflows
  • Develop full-stack tooling and backend services supporting large-scale data annotation, validation, and quality control
  • Improve reliability, performance, and safety across existing C++ codebases
  • Collaborate with data, research, and engineering teams to support model training and evaluation at scale
  • Identify bottlenecks and edge cases in data and system behavior --- then implement scalable, production-ready fixes
  • Participate in synchronous design reviews to iterate on architecture and implementation decisions
Who You Are
  • Native or fluent English speaker with clear written and verbal communication skills
  • Full-stack developer with a strong systems programming background
  • 3--5+ years of professional experience writing production-grade C++
  • Deep expertise in efficient binary serialization formats
  • Hands-on experience implementing zero-copy data exchange protocols for high-speed pipelines
  • Able to commit 20--40 hours per week with reliability and professionalism
Nice to Have
  • Prior experience with data annotation, data quality pipelines, or evaluation systems
  • Familiarity with AI/ML workflows, model training, or benchmarking infrastructure
  • Background in distributed systems or developer tooling
Why Join Us
  • Work directly with leading AI labs on real production systems --- not toy projects
  • Fully remote and flexible --- work from anywhere on a schedule that suits you
  • Freelance autonomy with the structure of meaningful, high-stakes engineering work
  • Make a tangible impact on the infrastructure shaping the future of AI
  • Potential for ongoing work and contract extension as projects scale
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