Security Lead

ABOUT REPLAY

We are building the first-ever bank for enterprise data. There are over 35 million businesses in the US alone, many of which are sitting on an asset they don’t know they have. At Replay, we help businesses monetize their historical operating data by licensing it to the frontier AI and data labs for model training. Replay sits at the intersection of advancing the frontier of AI, while helping companies generate millions in growth capital without having to give up equity, take on debt, or lay off employees.

WHY JOIN REPLAY NOW

• We have scaled from $0 to a multi-eight-figure run rate in a matter of months

• We have raised from top-tier investors, including Floodgate, Afore, Ludlow, and Hustle Fund

• We are small enough that you will carry outsized responsibility and grow as quickly as the company does

• You will partner with and build for some of the fastest and most important companies in the world

• You will help build a massive, category-defining business from the ground floor

THE ROLE

Replay handles internal enterprise data from collaboration tools, documents, files, and business systems, then transforms it into de-identified datasets that remain useful. We also build software that can retrieve information, guide workflows, and take carefully bounded actions. Security is part of whether these products can exist, not a review added after they are built.

You will lead security across the company. The scope includes our products and cloud systems, the enterprise data we acquire and deliver, employee and contractor access, vendors, AI tool authority, incident readiness, and the human workflows through which consequential Dissolution work gets done. You will find the risks that could genuinely limit Replay and turn them into technical, operational, and organizational controls that work in practice.

This is a hands-on individual-contributor role. You will write code, review architecture, test technical and human systems, lead exercises and incidents, and create secure defaults other teams can operate. You own the company-wide security program, but the people who run each product, system, and operation remain responsible for implementing and following its controls. You are not a one-person IT, legal, compliance, or operations department.

PROBLEMS YOU MIGHT OWN

KEEP SENSITIVE DATA INSIDE EXPLICIT BOUNDARIES

Trace how customer data, credentials, derived artifacts, and delivery outputs move through SaaS applications, workers, data pipelines, review tools, logs, storage, and third parties. Build controls that make tenant isolation, access, retention, deletion, quarantine, and delivery decisions enforceable and auditable rather than dependent on convention.

GIVE PEOPLE AND AI SYSTEMS ONLY THE AUTHORITY THEY NEED

Design identity, authorization, and credential systems for employees, contractors, customers, services, and AI-assisted workflows. You might build just-in-time access, scoped tool contracts, approval boundaries, safe execution environments, or protections against prompt injection, confused-deputy behavior, and data exfiltration.

SECURE HOW THE COMPANY AND ITS PEOPLE OPERATE

Design security into employee onboarding and offboarding, devices, accounts, contractors, vendors, support access, and sensitive human workflows. On the Dissolution side, that includes identity verification, approval boundaries, segregation of duties, document and credential handling, consequential actions, exception paths, and an audit trail that shows who did what and why.

MAKE THE SECURE PATH THE EASIEST PATH

Build paved roads that catch important problems early without creating a security queue. This could include high-signal code and architecture review, secrets and sensitive-data detection, reusable authorization patterns, dependency and cloud controls, release checks, incident tooling, or automated evidence that serves both engineers and customer trust.

WHAT YOU'LL DO

• Establish Replay's company-wide security program, current attack surface, highest-consequence risks, and prioritized roadmap

• Threat-model product, data, AI, cloud, workforce, vendor, delivery, and human operational workflows, then stay involved through implementation and verification

• Build and improve controls for identity, authorization, tenancy, sensitive data, credentials, logging, secure execution, and customer delivery

• Define and verify workforce-security requirements for accounts, endpoints, onboarding, offboarding, contractors, vendors, training, and access reviews

• Work with Dissolution Operations to secure identity checks, approvals, segregation of duties, documents, money or asset-related actions, exceptions, and evidence of human decisions

• Find vulnerabilities through code review, architecture review, testing, production evidence, and attacker-minded investigation

• Lead the security side of incidents and exercises, including containment, recovery, learning, and durable remediation

• Create secure defaults, tooling, and review triggers that let product, machine learning, data, and platform teams move independently

• Maintain the security control framework and evidence for customer reviews and SOC 2, while keeping each control with an accountable operating owner

• Work with leadership on risk acceptance and with legal, compliance, and privacy partners on decisions outside the engineering function

• Use AI tools deeply for security analysis and engineering while treating generated findings, code, and conclusions as evidence to verify

WHAT SUCCESS LOOKS LIKE

• Replay's most consequential security risks are visible, owned, and being reduced in a deliberate order

• At least one high-risk technical or human-operational boundary is materially safer because of a control you designed, implemented with its owner, and verified

• Engineers adopt reusable security capabilities that reduce dependence on case-by-case review

• Employees, contractors, and operational teams have clear access, app