Senior AI/ML Software Engineer (LLM Focus)

Senior AI/ML Software Engineer (LLM Focus)<br />Location: Guildford, Surrey UK (office based role)<br />Salary and

benefits:

£on experience + a truly outstanding package that includes an unrivalled holday entitlement.<br />Role Overview<br />Our client has tasked us to source a talented Senior level AI/ML Software Engineer with strong LLM expertise to join their high-impact team building intelligent, cutting edge systems team.<br />This role has a clear emphasis on Large Language Models — designing, developing, and deploying advanced LLM-powered solutions that deliver real business value.<br />You’ll work at the intersection of software engineering and Large Language Models, taking LLMs from experimentation through to robust, scalable, and secure production systems integrated into both desktop and web applications.<br />What you’ll do:

• Architect, fine-tune, and deploy Large Language Model solutions and pipelines
• Integrate LLMs into existing C++ and web applications
• Design and build production-grade LLM systems with a strong focus on performance, reliability, security, and cost-efficiency
• Work extensively with unstructured data using RAG (Retrieval-Augmented Generation), alongside structured (SQL) and time-series/streaming data
• Develop robust APIs and integration layers for LLM capabilities
• Collaborate with engineering, data, and product teams to deliver end-to-end LLM-powered features
• Champion best practices in LLM engineering, MLOps, evaluation, monitoring, and observability<br />About You:
• You’re a strong software engineer who is passionate about Large Language Models
• You have hands-on experience designing, optimising, deploying, and maintaining LLM systems in production environments
• Proficient in Python, with solid experience in C++ or C# (experience integrating LLMs into C++ applications is highly valued)
• You write clean, well-tested, production-grade code and care about reliability and scalability
• Excellent communicator who can explain complex LLM concepts clearly to technical and non-technical stakeholders<br />Experience &amp;

Qualifications:

• A PhD or Masters in Computer Science, Engineering, or a related field
• Strong background as a Software Engineer with significant LLM experience
• Track record of successfully delivering complex LLM-powered features or systems
• Experience with secure handling of sensitive data and compliance standards is a plus<br />What’s in it for you:
• Highly competitive salary
• Excellent benefits package including generous annual leave, private health &amp; dental insurance, pension (matched up to 10%), and more
• Real ownership and impact on cutting-edge LLM projects
• Training and development opportunities
• Visa sponsorship and relocation support (where applicable)<br />If you’re excited by Large Language Models and want to build production systems that matter, we’d love to hear from you!<br />Apply now by sending your CV or call us to discuss teh role in more detail.<br />#AI #LLM #MachineLearning #SoftwareEngineer #Hiring #ArtificialIntelligence #MLEngineer #TechJobs #LLMEngineer #Python #C