Senior Software Engineer – Ai Training Projects

Andrews Recruitment Group; Madrid; Remote; EUR 37,000 - 185,000; Part time

Job summary

Andrews Recruitment Group is seeking Senior Software Engineers to support large-scale AI training projects on a fully remote, contractor basis. Roles focus on real software engineering challenges across familiar and unfamiliar repositories, with 15 hours per week typical and flexible hours.

Candidates should have strong experience in Python, Java, TypeScript/JavaScript, Node.js, Go, Rust, C++, and React, plus solid knowledge of algorithms and data structures.

Qualifications

• Strong commercial software engineering experience.
• Good knowledge of algorithms and data structures.
• Experience on complex technical problems and software design.

Responsibilities

• Debugging complex code.
• Implementing new features.
• Refactoring codebases.
• Performance optimisation.
• Reviewing and validating code.
• Creating challenging coding tasks and reference solutions.
• Working across existing and unfamiliar repositories.

Skills

Python

Java

TypeScript/JavaScript

Node.js

Go

Rust

C++

React

Job description

Senior Software Engineer – AI Projects

Remote | Contract | Approx. 15 Hours Per Week

Flexible Hours | $30–$150/hr equivalent, with specialist projects paying more

We are recruiting experienced Software Engineers and Senior Software Engineers to support large-scale AI training projects.

No previous AI experience is required. The work is focused on real software engineering problems including:

• Debugging complex code
• Implementing new features
• Refactoring codebases
• Performance optimisation
• Reviewing and validating code
• Creating challenging coding tasks and reference solutions
• Working across existing and unfamiliar repositories

We are particularly interested in engineers with strong experience in:

• Python
• Java
• TypeScript / JavaScript
• Node.js
• Go
• Rust
• C++
• React

You should have strong commercial software engineering experience, good knowledge of algorithms and data structures, and confidence working on complex technical problems.

Experience in backend development, full-stack engineering, system design, automated testing, code review or cybersecurity would be highly relevant.

• Working Pattern
• Fully remote
• Approx. 15 hours per week
• Flexible days and hours
• Contractor position
• Projects typically move quicklyCompensation

Compensation varies depending on the project and experience level.

Most opportunities sit between $30–$150/hr equivalent, with some highly specialist senior projects offering higher rates.

Payment is generally output-based, with experts paid for completed tasks that meet project requirements.

• Process
• Application
• AI interview
• Technical assessment if required
• Hiring manager review

Successful candidates can often begin within 24–48 hours of completing onboarding.

Essential requirements

• We are particularly interested in engineers with strong experience in:
• Python
• Java
• TypeScript / JavaScript
• Node.js
• Go
• Rust
• C++
• React