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# Senior Software Engineer - AI/ML

- **Company:** Mercor
- **Location:** London, UK (Remote available)
- **Experience:** Expert
- **Salary:** £53,112.0
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Artificial Intelligence, C++ (Programming Language), Code Generation, Software Quality, Code Review, Software Debugging, Python (Programming Language), Machine Learning, Software Engineering, TypeScript, AI Coding Agents, Golang
- **Published:** October 30, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5946341629

## About the Role

Must-Have

 * 4+ years of professional software engineering experience at leading technology, quantitative, or financial firms.
 * Strong command of at least one major language like Python, Java, C++, Go, TypeScript, or Rust.
 * Proven ability to work in large, complex production codebases and judge code quality.
 * Excellent written English for explaining technical decisions and trade-offs.
 * Bachelor's degree from an English-speaking country.
 * Detail-oriented and consistent in evaluating complex work.
 * Comfortable receiving feedback and calibrating judgment against set standards.

## Description

* Design realistic, challenging software engineering tasks from real-world work. Tasks include feature changes, debugging, root-cause analysis, code review, system design, and technical documentation.
 * Write clear task proposals explaining task realism, verification, and challenges for current AI models.
 * Illustrate "what good looks like" with reference solutions, tests, and criteria covering correctness, architecture, maintainability, style, and scope.
 * Assess AI-generated code and engineering work, collaborating with AI coding agents to evaluate success and failure.
 * Apply consistent, evidence-based judgment for reproducible and defensible assessments.
 * Take structured feedback from senior reviewers and iterate on submitted work.