Software Engineer - Python (Advanced)

Alignerr Corp.; France; Remote; EUR 96,000 - 152,000; Full time

Job summary

Alignerr Corp. is seeking an advanced Python engineer to design, build, and optimize production-grade software and data workflows for AI systems.

This fully remote hourly contract offers autonomy, challenging real-world problems, and the chance to influence how AI reasons, writes, and processes code.

Ideal candidates have 4+ years of experience, deep Python skills, strong SQL, and experience with large datasets.

Qualifications

• 4+ years of professional software engineering experience.
• Advanced Python proficiency with clean architecture, performance optimization, and deep debugging skills.
• Strong hands-on experience working with real-world datasets.
• Solid SQL skills, including complex queries, joins, and data validation.
• Experience with open-ended or client-facing technical problem solving.

Responsibilities

• Design, implement, and optimize advanced Python code for production-level systems.
• Analyze and manipulate structured datasets to support engineering and modeling workflows.
• Write and optimize SQL queries to extract, transform, and validate data.
• Review, debug, and improve existing codebases for performance, reliability, and maintainability.
• Translate ambiguous or high-level requirements into concrete, well-reasoned technical solutions.

Skills

Advanced Python

SQL

Data handling

Client-facing problem solving

Performance optimization

Tools

REST APIs

Data Pipelines

Job description

About The Role

What if your Python expertise could directly influence how AI systems reason, write, and produce code for millions of people around the world? We’re looking for advanced Python engineers to work on challenging, real-world technical problems — building, evaluating, and improving high-quality software and data workflows that sit at the cutting edge of AI development.

Software Engineer – Python (Advanced)

What if your Python expertise could directly influence how AI systems reason, write, and produce code for millions of people around the world? We’re looking for advanced Python engineers to work on challenging, real-world technical problems — building, evaluating, and improving high-quality software and data workflows that sit at the cutting edge of AI development.

This is a fully remote, flexible contract role built for engineers who thrive on autonomy, love solving hard problems, and want their work to matter beyond the next sprint cycle.

• Organization: Alignerr
• Type: Hourly Contract
• Location: Remote
• Commitment: 10–40 hours/week

What You’ll Do

• Design, implement, and optimize advanced Python code for production-level systems
• Analyze and manipulate structured datasets to support engineering and modeling workflows
• Write and optimize SQL queries to extract, transform, and validate data
• Review, debug, and improve existing codebases for performance, reliability, and maintainability
• Translate ambiguous or high-level requirements into concrete, well-reasoned technical solutions
• Evaluate tradeoffs and recommend best-fit approaches with consulting-style clarity
• Document assumptions, decisions, and implementation details with precision

Who You Are

Must-Have

• 4+ years of professional software engineering experience
• Advanced Python proficiency — clean architecture, performance optimization, and deep debugging skills
• Strong hands-on experience working with real-world datasets
• Solid SQL skills, including complex queries, joins, and data validation
• Experience with open-ended or client-facing technical problem solving

Nice to Have

• Experience working with large, messy, or unstructured datasets
• Familiarity with backend systems, REST APIs, or data pipelines
• Comfort evaluating AI-generated code or analytical outputs
• Strong written communication with a sharp eye for technical detail

Why Join Us

• Work on cutting-edge AI projects alongside leading research labs
• Fully remote and flexible — work when and where it suits you
• Freelance autonomy with the structure of meaningful, task-based engineering work
• Make a direct, tangible impact on how AI understands and produces code at scale
• Potential for ongoing work and contract extension as new projects launch