Back End Developer

Experis; City Of London; Hybrid; GBP 80,000 - 100,000; Full time

Job summary

A technology staffing firm is looking for a Back End Developer to join their team in London. This role focuses on creating high-quality AI contexts for large-scale software projects. Skills required include C#, TypeScript, and familiarity with AI/LLM concepts. The ideal candidate will work closely with multidisciplinary teams and adapt to Agile methodologies. The position offers a hybrid work model, requiring 1-2 days in the office every two weeks.

Qualifications

• Strong foundation in software development with C# and TypeScript.
• Experience with AI/LLM concepts (e.g., prompt engineering, RAG).
• Familiarity with Enterprise Design Thinking or Agile methodologies.

Responsibilities

• Collaborate closely with Development Lead to deliver AI contexts.
• Integrate Context Engineering into Enterprise Design Thinking.

Skills

C#

TypeScript

AI/LLM concepts

Clean Architecture

Clean Code principles

Collaboration skills

Tools

GitHub Copilot

Linters

Job description

Back End Developer

Duration - until 12/10/2026

Rate - (Apply online only) per day - umbrella only

Location - London, 1-2 days every 2 weeks.

As a Context Engineer in our Development team, you'll collaborate closely with the Dev Lead to pioneer and apply "Context Engineering"-the art and science of curating high-quality AI contexts for large-scale software projects. You'll help deliver on our current initiatives while integrating this practice into Enterprise Design Thinking methodologies, ensuring AI-assisted workflows enhance ideation, empathy mapping, and iterative prototyping across multidisciplinary teams.

• Strong foundation in software development with C# and TypeScript.
• Experience with AI/LLM concepts (e.g., prompt engineering, RAG).
• Analytical mindset for assessing sufficiency (relevance, completeness, freshness) and mitigating risks like hallucinations.
• Focus on Clean Architecture and Clean Code principles.
• Familiarity with Enterprise Design Thinking or Agile methodologies.
• Knowledge of code quality tools (e.g., linters, etc.) and nonfunctional standards (e.g., WCAG 2.2, OWASP).
• Experience with AI coding assistants like GitHub Copilot or Cursor.
• Excellent collaboration skills for multidisciplinary teams.

All profiles will be reviewed against the required skills and experience. Due to the high number of applications we will only be able to respond to successful applicants in the first instance. We thank you for your interest and the time taken to apply!