Staff Software Engineer (AI Agent Security Platform)

Location: Hybrid working from Belfast, United Kingdom

Salary: £90,000–£120,000 per annum plus bonus

Company

A global security leader applying expertise in identity, payments, data security, public key infrastructure, digital identity, and cryptographic security to a new AI agent security platform.

What you will do

• Own technical direction and delivery for broad initiatives spanning multiple teams, services, and platform layers.
• Design and build capabilities for agent identity, delegated authority, policy enforcement, trustworthy execution, and evidence.
• Evolve reference designs, interfaces, and engineering standards with the Platform Architect and engineering leadership.
• Prototype uncertain or high-risk approaches and convert findings into scalable production designs.
• Lead architecture and design reviews, resolve systemic production and performance issues, and build reusable frameworks, libraries, and reference implementations.
• Mentor engineers and represent engineering in strategic customer, partner, and standards discussions.

Requirements

• 10+ years of professional software development experience building and running complex distributed or security-sensitive systems.
• Expertise in one or more modern programming languages.
• Strong cloud-native system design, API contract, and data integrity skills, plus production operations experience.
• Proven experience leading large technical initiatives across teams without relying on positional authority.
• Excellent written and verbal communication, including explaining complex trade-offs and producing durable technical documentation.
• Degree in Computer Science, Engineering, or a related field, or equivalent practical experience.

Nice to have

• Experience in identity, key management, PKI, cryptography, HSM-backed services, workload identity, or transparency logs.
• Experience with multi-tenant SaaS and agentic AI ecosystems, including MCP, agent-to-agent interactions, or provenance standards such as C2PA.
• Open-source, patent, standards-body, or recognised technical community contributions.

Culture & Benefits

• Hybrid working from Belfast.
• Generous annual leave and a comprehensive benefits package.
• Competitive salary plus bonus.
• Opportunity to shape the technical foundations of a new platform from the start.
• Technical influence across teams, customers, partners, and standards bodies.

Hiring process

• Contact Phil Gamble for further details via the stated contact route or LinkedIn/WhatsApp.