Senior Architect - Agentic AI Interfaces

IFS; Staines-upon-Thames; Hybrid; GBP 120,000 - 160,000; Full time

Benefits offered by this job

Hybrid work

Job summary

IFS is building AI-native enterprise software and seeking a senior architect to own the agent-native layer end-to-end. You will oversee architecture across multiple teams, define interface contracts, and ensure secure, scalable design for production AI applications.

You'll influence senior stakeholders, shape evaluation standards, and collaborate with product, platform engineering and AI teams to drive the delivery roadmap. Hybrid work is offered, with a global impact.

Qualifications

• 10+ years in software engineering with 3+ years in a lead architect role on a platform used by other teams or external developers.
• Track record of owning the architecture of a production platform at enterprise scale.
• Deep API and interface design experience, including versioning, backward compatibility and deprecation.
• Hands-on experience with AI systems that call tools or functions in production.
• Experience with semantic modelling, knowledge graphs or ontologies over an existing product or data estate.
• Security and multi-tenancy design: identity, entitlements, isolation between customers.
• Able to hold a technical position with senior stakeholders and change it on evidence.

Responsibilities

• Own the architecture of the agent-facing interface, the semantic layer beneath it and the controls around it.
• Set and hold the interface contract: what is exposed, at what granularity, how it versions, and what stays private.
• Adjudicate between competing technical approaches and make the call.
• Define the evaluation approach that decides whether the layer is good enough to expose.
• Establish the security and governance model for agent access, covering identity and entitlements.
• Work with product management, platform engineering and AI teams to sequence the build against a roadmap.
• Represent the architecture to senior technical stakeholders inside IFS, customers, and partners.

Skills

Software engineering

Lead architect

API design

AI production systems

Security & multi-tenancy

Semantic modelling

Stakeholder influence

Job description

IFS is building AI-native enterprise software and seeking a senior architect to own the agent-native layer end-to-end. You will oversee architecture across multiple teams, define interface contracts, and ensure secure, scalable design for production AI applications.

You'll influence senior stakeholders, shape evaluation standards, and collaborate with product, platform engineering and AI teams to drive the delivery roadmap. Hybrid work is offered, with a global impact.