Lead Backend Engineer - AI Tooling

Lead Backend Engineer - AI Tooling

Join to apply for the Lead Backend Engineer - AI Tooling 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 Python Full-Stack Engineer AI Data & Infrastructure

Type: Contract, Remote

Commitment: 2040 hours/week

Compensation: Competitive, hourly (based on experience)

Role Responsibilities

Design, build, and optimize high-performance systems in Python 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, 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 Python backend services.

Mastery of modern web frameworks and strict type enforcement patterns.

Experience architecting robust APIs (REST/GraphQL), designing database schemas, and implementing authentication/authorization flows.

Clear written and verbal communication skills to lead code reviews and system design sessions.

Ability to commit 2040 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

Engineering and Information Technology

Industries

Technology, Information and Internet #J-18808-Ljbffr