Software Engineer - AI Code Reasoning & Systems

Mercor; Remote; GBP 100,000 - 125,000; Part time

Job summary

A leading AI firm based in Greater London is seeking software engineers to support a top AI lab in enhancing code understanding capabilities. The role involves analyzing production-grade repositories, using coding agents, and applying systematic exploration across files. Candidates should have at least 4 years of software engineering experience, be fluent in Python and JavaScript / TypeScript, and possess a Computer Science degree or equivalent expertise. This role offers a task-based pay structure with weekly payouts, emphasizing intellectual curiosity and evidence-based reasoning.

Qualifications

• 4 years of elite software engineering experience in high-performance environments.
• Experience using coding agents or LLMs (e.g. Copilot, Claude, GPT-4).
• Fluency in Python and JavaScript / TypeScript, comfortable with Java, Go, Rust, C, C#.

Responsibilities

• Engage in analyzing large production-grade repositories to create and evaluate coding questions.
• Explore multiple modules and connect related functions across files.
• Assess how AI systems reason about architecture, data flow, and performance.

Skills

Spring

.NET

C / C++

Go

React

OOP

C#

Data Structures

JavaScript

Software Development

Java

Distributed Systems

Education

Computer Science degree or equivalent practical expertise

Job description

A leading AI firm based in Greater London is seeking software engineers to support a top AI lab in enhancing code understanding capabilities. The role involves analyzing production-grade repositories, using coding agents, and applying systematic exploration across files. Candidates should have at least 4 years of software engineering experience, be fluent in Python and JavaScript / TypeScript, and possess a Computer Science degree or equivalent expertise. This role offers a task-based pay structure with weekly payouts, emphasizing intellectual curiosity and evidence-based reasoning.