Founding Engineer, Infrastructure & Platform (+ Equity) at Helmguard

Company: Jack & Jill
Apply for the Founding Engineer, Infrastructure & Platform (+ Equity) at Helmguard
Location: London
Job Description:

Job Title

Founding Engineer, Infrastructure & Platform

Salary

Not Disclosed + Equity

Company Description

Helmguard.ai is an agent-native risk infrastructure platform that has reached seven-figure revenue within months of launch. Backed by top-tier institutional investors and angels from Meta, SpaceXAI, and Palantir, Helmguard.ai replaces fragmented manual risk processes with AI agents that provide continuous, multi-tenant security and trust for regulated enterprises.

Job Description

Join Helmguard.ai as a founding engineer to build the core infrastructure supporting our AI-native services. You will design backend services and secure, multi-tenant Azure foundations that handle high-stakes risk management for financial and healthcare leaders. This is a high-impact role shaping the technical direction and culture of a fast-scaling startup.

Location

London, UK

Why this role is remarkable

  • Massive growth potential with seven-figure revenue already secured via multi-year contracts with global financial and healthcare enterprises.
  • Exceptional pedigree, with founders from Palantir and leading academic institutions including Oxford, Stanford, and ETH.
  • Unique opportunity to define the infrastructure layer for agent-native software, moving beyond simple assistants to “systems of action.”

What You Will Do

  • Build and own mission-critical backend services, APIs, and async workflows using TypeScript, Node.js, and Postgres.
  • Architect and manage Azure foundations using Terraform, focusing on Container Apps, Service Bus, and Entra ID.
  • Design robust multi-tenant isolation patterns across compute and data layers to meet strict enterprise security requirements.

The ideal candidate

  • 6+ years of backend engineering experience with deep infrastructure knowledge and a history of shipping and owning production services.
  • Proficient in Infrastructure as Code (Terraform) and container orchestration within the Azure ecosystem (or ready to ramp fast).
  • Proven experience managing end-to-end compliance (SOC 2 or ISO 27001) and maintaining high operational security standards.

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Posted: June 21st, 2026