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Systems Software Engineer - Machine Learning Ops

Systems Software Engineer - Machine Learning Ops

On site

San francisco, United states

Mid level

Freelance

18-12-2025

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Skills

Communication Research Training Programming benchmarking

Job Specifications

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 Back End 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 Must-Have
Native or fluent English speaker
Full-stack developer experience with a strong systems programming background
5+ years of professional experience writing production C+.
Experience working with the C+ frontends of ML frameworks or inference runtimes.
Familiarity with hardware acceleration APIs for optimizing model inference.
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
$50 - $75 an hour

About the Company

Labelbox is the data factory for the next GenAI from leading AI labs and AI-powered enterprises. Innovate faster using Labelbox's on-demand expert labeling services and unified software to deliver high-quality, differentiated data with control and speed. Know more