Job Description

Python Software Engineer - AI Workflows

About the Role

What if your Python expertise could directly shape the infrastructure behind next-generation AI? We're looking for a senior full-stack Python engineer to build the data pipelines, annotation tooling, and evaluation systems that leading AI labs depend on to train and improve their models.

This is a fully remote, flexible contract role for an experienced engineer who wants to work on real production systems at the cutting edge of AI - not toy projects, but high-impact infrastructure that influences how the world's most advanced models are built.

• Organization
  : Alignerr
• Type
  : Hourly Contract
• Location
  : Remote
• Commitment
  : 20-40 hours/week

What You'll Do

• Design, build, and optimize high-performance Python systems 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 Python 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, then implement scalable fixes
• Participate in synchronous design reviews to iterate on architecture and implementation decisions

Who You Are

• 3-5+ years of professional experience writing production-grade Python
• Strong full-stack developer with a solid systems programming background
• You write clean, maintainable code - linters, formatters, and testing frameworks are second nature
• Experienced in integrating AI services and APIs, handling edge cases, and building robust error reporting
• A clear communicator - both in writing and in synchronous discussions
• Native or fluent English speaker
• Available to commit 20-40 hours per week

Nice to Have

• 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

Why Join Us

• Work on cutting-edge AI infrastructure alongside leading research labs
• Fully remote and flexible - work when and where it suits you
• Freelance autonomy with the structure of meaningful, high-impact engineering work
• Tackle real production challenges that directly shape how next-generation AI models are built
• Potential for ongoing work and contract extension as new projects launch

Job Tags

Hourly pay, Ongoing contract, Freelance, Remote work, Flexible hours

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