Senior Software Engineer - AI-Driven Legacy Modernization

RedRock Resourcing; Reading; Sur place; GBP 70 000 - 100 000; Plein temps

Résumé du poste

RedRock Resourcing is seeking a Senior Software Engineer to work at the intersection of software engineering, AI, and legacy modernisation in Reading, UK. You will tackle complex legacy technology with AI tooling and define guardrails for safe AI-driven development.

The role focuses on building the AI-enabled engineering harness, refactoring critical systems and driving automated testing and evals to balance speed with quality.

Qualifications

• Strong software engineering foundation.
• Deep experience with C#/.NET and legacy systems.
• Experience using AI tooling for coding tasks.
• Familiarity with automated testing and evals.

Responsabilités

• Use AI coding agents to investigate, refactor and modernise legacy codebases.
• Design the engineering harness providing context, rules and constraints for AI agents.
• Build repository-level instructions, agent skills, prompts and context.
• Work with Claude Code, Cursor, GitHub Copilot, Codex and related tools.
• Establish automated testing and AI evaluation frameworks to safeguard quality.
• Create guardrails, sandboxes and CI/CD controls around AI‑driven development.

Connaissances

C# / .NET

Legacy systems

Software engineering

Outils

Claude Code

Cursor

GitHub Copilot

Codex

Description du poste

RedRock Resourcing is seeking a Senior Software Engineer to work at the intersection of software engineering, AI, and legacy modernisation in Reading, UK. You will tackle complex legacy technology with AI tooling and define guardrails for safe AI-driven development.

The role focuses on building the AI-enabled engineering harness, refactoring critical systems and driving automated testing and evals to balance speed with quality.