About the Role

We’re looking for a Senior Security Architect to be the founding SME for its Security Ops capability.
This is a high-leverage, zero-to-one role. You will define what the agent knows and can do in the security domain — from the detection logic and runbooks that power its reasoning, to the agentic workflows that let it autonomously investigate, triage, and remediate security events across multi-cloud environments. You’ll work at the intersection of deep security expertise, AI agent design, and product engineering.
If you’ve spent years wishing your security tooling could think and act like a seasoned analyst — this is your chance to build that.

What You’ll Do

Own the Security Ops Intelligence Layer

Define the security knowledge layer that powers the agent: threat models, detection logic, investigation playbooks, and remediation workflows across AWS, Azure, GCP, and hybrid environments.
Design and build agentic security capabilities — from automated triage and root cause analysis to policy violation detection and cloud misconfiguration remediation.
Translate your security expertise into structured, LLM-ready context: runbooks, risk taxonomies, tool schemas, and skill definitions that shape how the agent reasons about security events.

Research → Product

Identify high-impact, underserved security risk areas in cloud-native and AI-native architectures and drive them into the product roadmap.
Deliver proofs of risk (demonstrating attack impact) and technical POCs (demonstrating agentic resolution) to validate and prioritize new capabilities.
Analyze cloud service APIs, telemetry, and log payloads to define what data the agent needs to ingest and act on.

Shape the Security Ops Agent Experience

Partner with Product and Engineering to design the end-to-end experience for security operations workflows — alert handling, investigation, escalation, and auto-remediation.
Define the guardrails, confidence thresholds, and human-in-the-loop checkpoints that make the agent trustworthy in production security environments.
Serve as the internal authority on security correctness — reviewing agent outputs, catching reasoning gaps, and continuously improving the agent’s security judgment.

Customer & Market Proximity

Engage directly with design partners and enterprise customers to understand their SecOps workflows, tooling stack, and compliance requirements.
Monitor the threat landscape and translate emerging attack patterns into new agent skills and detections.

What You’ll Bring

8+ years of hands-on experience in cloud security, security architecture, or security engineering — with deep expertise in at least two of AWS, Azure, or GCP.
Strong command of cloud-native threat models: IAM abuse, data exfiltration paths, lateral movement, supply chain risk, and misconfiguration patterns at scale.
Experience with security telemetry pipelines — CloudTrail, GuardDuty, Security Hub, Defender, Chronicle, or equivalent — and the ability to design detection logic against them.
Proven ability to build or operationalize security runbooks and response playbooks, ideally in a SOC, CSIRT, or product security engineering context.
Hands-on scripting and automation skills (Python, Go, or equivalent) for building POCs, tooling, and integrations.
Strong product instincts — you can translate deep security expertise into clear requirements, user-facing workflows, and actionable roadmap decisions.
Excellent written communication; able to make complex risk and architecture tradeoffs legible to engineering, product, and executive stakeholders.

Bonus:

Prior experience building security features for a SaaS or cloud infrastructure product.
Familiarity with LLM-based agent architectures, tool use, or AI-powered security tooling (e.g., security copilots, SIEM AI assistants).
Certifications: CISSP, CCSP, AWS Security Specialty, or equivalent.

Why This Role

You’ll be the first dedicated security domain expert on this initiative — your fingerprints will be on the product architecture from day one.
Direct path into senior product, research, or engineering leadership as the product scales.
Work at the frontier of AI + security — a space that is moving fast and where being early matters enormously.
Competitive compensation, equity, and benefits.

Tessell Inc

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Senior Security Architect