Senior Full-Stack AI Engineer

Senior Full-Stack AI Engineer Contract Details

Location:

Sheffield 3 days onsite per week (mandatory) Grosvenor House, 1 Wellington St, Sheffield City Centre, Sheffield S1 4NB
Contract Duration:
Until 30/11/2026 Rate: £500 per day IR35 Status:
Inside IR35

Role Overview We are seeking a Senior Full-Stack AI Engineer to build an end-to-end AI-powered helpdesk product, spanning web applications, backend APIs, agent orchestration, and enterprise workflow automation. The successful contractor will work across the full product lifecycle, delivering scalable and secure AI-enabled support solutions for enterprise users.

Key Responsibilities Design and develop user-facing applications for employees, support agents, and administrators. Build and maintain frontend, backend, and API layers supporting:
Chat interfaces Ticket submission Status tracking Escalation workflows Develop LLM/agent workflows to automate repetitive IT helpdesk tasks, including:
Password resets Account unlocks Software access requests Knowledge-based troubleshooting Integrate with enterprise platforms including ticketing, identity, collaboration, and ITSM systems. Implement prompt orchestration, guardrails, fallback logic, and human handoff mechanisms. Own feature delivery from solution design through deployment and production release. Required Skills & Experience Strong full-stack engineering experience using modern frontend and backend frameworks. Commercial experience with one or more of:
Python Node.js Java Proven experience building: REST APIs Workflow services Production-grade web applications Working knowledge of: LLM APIs Prompt engineering AI agent/tool-calling patterns

Experience with :
Authentication and authorisation Role-based access control (RBAC) Logging/monitoring Secure coding practices

Preferred Experience Integration experience with platforms such as:
Service Now Jira Zendesk Microsoft Teams Slack Telephony/chat systems Experience building internal enterprise support or helpdesk tooling. Additional Information Candidates must be available to work onsite in Sheffield 3 days per week. BPSS eligibility is mandatory for this engagement.