Alignerr
Principal Systems Engineer (C++) - AI Infrastructure
Alignerr, Los Angeles, California, United States, 90079
Join to apply for the
Principal Systems Engineer (C++) - AI Infrastructure
role at
Alignerr
1 day ago Be among the first 25 applicants
Join to apply for the
Principal Systems Engineer (C++) - AI Infrastructure
role at
Alignerr
This range is provided by Alignerr. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.
Base pay range $50.00/hr - $75.00/hr
About The Job Alignerr connects top technical experts with leading AI labs to build, evaluate, and improve next-generation models. We work on real production systems and high-impact research workflows across data, tooling, and infrastructure.
Position Senior C++ Full-Stack Engineer — AI Data & Infrastructure
Type: Contract, Remote
Commitment: 20–40 hours/week
Compensation: Competitive, hourly (based on experience)
Role Responsibilities
Design, build, and optimize high-performance systems in C++ supporting AI data pipelines and evaluation workflows
Develop full-stack tooling and backend services for 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 workflows
Identify bottlenecks and edge cases in data and system behavior, and implement scalable fixes
Participate in synchronous reviews to iterate on system design and implementation decisions
Qualifications
Native or fluent English speaker
Full-stack developer experience with a strong systems programming background
5+ years of professional experience writing production C++ for large-scale systems.
Advanced knowledge of build system architecture and package management strategies.
Experience designing reliable systems with rigorous error handling and utilizing memory sanitizers to ensure memory safety.
Clear written and verbal communication skills.
Ability to commit 20–40 hours per week.
Preferred
Prior experience with data annotation, data quality, or evaluation systems
Familiarity with AI/ML workflows, model training, or benchmarking pipelines
Experience with distributed systems or developer tooling
Application Process
Submit your resume
Complete a short technical screening
Project matching and onboarding
Seniority level Mid-Senior level
Employment type Contract
Job function Information Technology
Sign in to set job alerts for “Principal System Engineer” roles. Santa Monica, CA $45.00-$50.00 2 weeks ago
Los Angeles Metropolitan Area $150,000.00-$190,000.00 2 weeks ago
San Marino, CA $60,000.00-$120,000.00 5 months ago
Los Angeles Metropolitan Area 1 month ago
Los Angeles, CA $136,000.00-$200,000.00 2 weeks ago
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Principal Systems Engineer (C++) - AI Infrastructure
role at
Alignerr
1 day ago Be among the first 25 applicants
Join to apply for the
Principal Systems Engineer (C++) - AI Infrastructure
role at
Alignerr
This range is provided by Alignerr. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.
Base pay range $50.00/hr - $75.00/hr
About The Job Alignerr connects top technical experts with leading AI labs to build, evaluate, and improve next-generation models. We work on real production systems and high-impact research workflows across data, tooling, and infrastructure.
Position Senior C++ Full-Stack Engineer — AI Data & Infrastructure
Type: Contract, Remote
Commitment: 20–40 hours/week
Compensation: Competitive, hourly (based on experience)
Role Responsibilities
Design, build, and optimize high-performance systems in C++ supporting AI data pipelines and evaluation workflows
Develop full-stack tooling and backend services for 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 workflows
Identify bottlenecks and edge cases in data and system behavior, and implement scalable fixes
Participate in synchronous reviews to iterate on system design and implementation decisions
Qualifications
Native or fluent English speaker
Full-stack developer experience with a strong systems programming background
5+ years of professional experience writing production C++ for large-scale systems.
Advanced knowledge of build system architecture and package management strategies.
Experience designing reliable systems with rigorous error handling and utilizing memory sanitizers to ensure memory safety.
Clear written and verbal communication skills.
Ability to commit 20–40 hours per week.
Preferred
Prior experience with data annotation, data quality, or evaluation systems
Familiarity with AI/ML workflows, model training, or benchmarking pipelines
Experience with distributed systems or developer tooling
Application Process
Submit your resume
Complete a short technical screening
Project matching and onboarding
Seniority level Mid-Senior level
Employment type Contract
Job function Information Technology
Sign in to set job alerts for “Principal System Engineer” roles. Santa Monica, CA $45.00-$50.00 2 weeks ago
Los Angeles Metropolitan Area $150,000.00-$190,000.00 2 weeks ago
San Marino, CA $60,000.00-$120,000.00 5 months ago
Los Angeles Metropolitan Area 1 month ago
Los Angeles, CA $136,000.00-$200,000.00 2 weeks ago
#J-18808-Ljbffr