Senior Applied AI Engineer (.NET) Job at Woolston, Warrington Full Time NEW

We re looking for a Senior Applied AI Engineer to design and deliver production-grade AI-powered features within a modern .NET product environment.

This is a hands-on engineering role focused on applying AI in real systems not training models. You ll work with commercial AI platforms such as Anthropic Claude, AWS Bedrock, and OpenAI to build reliable, scalable, and observable features that ship to users.

You ll also play a key role in shaping how AI is adopted across the engineering team setting standards, introducing tooling, and leading by example through high-quality, AI-assisted development practices.

This role suits someone who has already successfully integrated AI into production products and can bring proven patterns into a growing team.

What You ll Do

• Design and build AI-powered product features within a C# / .NET ecosystem
• Integrate commercial AI APIs into production systems with a focus on reliability, scalability, and cost control
• Establish and promote best practices for applied AI engineering across the codebase
• Lead by example using AI-assisted development workflows
• Support and mentor engineers adopting tools such as Claude Code or Cursor
• Build systems with strong observability, logging, and guardrails
• Contribute to clean, well-structured, and versioned RESTful APIs
• Collaborate closely with product and engineering teams to deliver user-facing AI capabilities

Must Have

• 5+ years of commercial software engineering experience
• Strong C# / .NET (Core) experience
• Proven experience designing and shipping AI integrations in production
• Strong experience integrating paid AI APIs (e.g. OpenAI, Anthropic, Bedrock)
• Demonstrated ability to set patterns and standards adopted by other engineers
• Hands-on experience introducing AI-assisted development tools into a team
• Strong REST API design skills (clean, versioned, observable)
• Solid SQL experience (MariaDB or MySQL)
• A strong focus on quality, resilience, and maintainability

Nice to Have

• Experience with AWS (EC2, RDS, Lambda, S3, Bedrock)
• Practical experience with prompt design, iteration, and evaluation
• Familiarity with structured outputs, tool use, or function calling
• Frontend exposure (JavaScript, Vue, Nuxt 3)
• Experience working in microservices or distributed systems
• Familiarity with Shape Up methodology
• Awareness of secure-by-design principles (e.g. ISO 27001)

Not the Right Fit If You

• Focus on training or fine-tuning models rather than applying them
• Come from a purely data science or research background
• Prefer Python-heavy environments and don t want to work in .NET
• Are sceptical of AI-assisted development workflows
• Haven t worked with commercial AI APIs in production
• Are looking for a strategy-only or non-hands-on role

Why Join Us

• Work on real-world AI features used in production
• Be part of a team where AI is treated as an engineering discipline, not a buzzword
• Influence how AI is adopted across the organisation
• Hybrid working (2 days in the office)
• Dedicated training and development budget
• Clear opportunities for career progression

If you want to build high-quality, production AI systems and help shape how modern engineering teams apply AI in practice, we d love to hear from you.

Senior Applied AI Engineer (.NET)