Remote Applied AI Engineer: Investigation & Security ML

Weve Security Limited; United States; Remote; USD 120,000 - 180,000; Full time

Job summary

Weve Security Limited is building workplace security that connects activity, identity and business context across multiple systems. You’ll join an applied engineering team that brings research into production, balancing model quality with latency and cost.

You’ll work with security researchers and back-end engineers to implement robust investigations, with a focus on traceability, evidence gathering, and responsible AI use. This role is remote in the United States.

Qualifications

• Experience shipping AI/ML-backed features and assessing their behaviour with real users or production data.
• Strong software engineering skills and ability to build reliable data, model and tool integrations.
• Hands-on experience with LLM tool use, retrieval or multi-step reasoning, including failure modes.

Responsibilities

• Build investigation agents that gather evidence across connected systems and retain traceable support for conclusions.
• Design retrieval and context assembly around identities, activity and resources, including conflicting records and incomplete information.
• Evaluate lightweight models, custom ML and frontier models for different tasks, considering quality, latency and cost.
• Create repeatable evaluations for factual support, false escalation and robustness to noisy inputs.
• Implement safeguards around tool permissions, sensitive data and untrusted content encountered during investigations.
• Monitor production behaviour and drive improvements from failure analyses.

Skills

AI/ML features

Software engineering

LLM tooling & retrieval

Experimentation

Trade-offs (accuracy/latency/cost)

Tools

LLM tooling

Job description

Weve Security Limited is building workplace security that connects activity, identity and business context across multiple systems. You’ll join an applied engineering team that brings research into production, balancing model quality with latency and cost.

You’ll work with security researchers and back-end engineers to implement robust investigations, with a focus on traceability, evidence gathering, and responsible AI use. This role is remote in the United States.