Senior Full-Stack AI Engineer

Salary: £125,000 – 125,000 per year

Requirements

• We require strong full-stack engineering experience using modern frontend and backend frameworks.
• We require commercial experience with one or more of the following: Python, Node.js, or Java.
• We require proven experience building REST APIs, workflow services, and production-grade web applications.
• We require working knowledge of LLM APIs, prompt engineering, and AI agent/tool-calling patterns.
• We require experience with authentication and authorisation, including role-based access control (RBAC).
• We require experience with logging, monitoring, and secure coding practices.
• We prefer experience integrating with platforms such as ServiceNow, Jira, Zendesk, Microsoft Teams, Slack, and telephony/chat systems.
• We prefer experience building internal enterprise support or helpdesk tooling.
• We require availability to work onsite in Sheffield 3 days per week.
• We require BPSS eligibility for this engagement.

Responsibilities

• We will have you design and develop user-facing applications for employees, support agents, and administrators.
• We will have you build and maintain frontend, backend, and API layers supporting chat interfaces, ticket submission, status tracking, and escalation workflows.
• We will have you develop LLM and agent workflows to automate repetitive IT helpdesk tasks such as password resets, account unlocks, software access requests, and knowledge-based troubleshooting.
• We will have you integrate with enterprise platforms including ticketing, identity, collaboration, and ITSM systems.
• We will have you implement prompt orchestration, guardrails, fallback logic, and human handoff mechanisms.
• We will have you own feature delivery from solution design through deployment and production release.
• We will have you work across the full product lifecycle to deliver scalable and secure AI-enabled support solutions for enterprise users.

Technologies

• AI
• API
• Backend
• Frontend
• Support
• ITSM
• JIRA
• Java
• LLM
• Python
• REST
• RBAC
• ServiceNow
• Slack
• Web
• Zendesk
• NodeJS
• Fullstack

More

We are seeking a Senior Full-Stack AI Engineer to help us build an end-to-end AI-powered helpdesk product for enterprise users. This is a contract role based in Sheffield, with 3 days onsite per week as mandatory at Grosvenor House, 1 Wellington St, Sheffield City Centre, Sheffield S1 4NB. The engagement runs until 30/11/2026 and is inside IR35. We offer the opportunity to work across the full product lifecycle, delivering scalable, secure AI-enabled support solutions that combine web applications, backend services, agent orchestration, and enterprise workflow automation.

last updated 25 week of 2026

#J-18808-Ljbffr…