Founding Security Engineer

We're expanding our engineering team to meet the growing demands of our B2B partners and B2C users. Boom handles sensitive consumer data at scale -- credit, identity, income, an other verification data flow through our platform every day, and we report rent payments to the credit bureaus on behalf of hundreds of thousands of residents.

As we move from Seed to Series A and beyond, we're hiring our Founding Security Engineer to harden our platform, mature our security posture, and partner with product engineering and infrastructure teams to bake security into how we build.

This role offers the chance to work closely with our CPO, engineering leadership, and operations, owning security as a function from the ground up. For this role, we are hiring for candidates in Austin, TX, where our leadership and product team is located. Comp range listed is directional and adjustable +/- based on competency.

Our engineering culture is hands-on and pragmatic -- we value shipping real product, maintaining high standards, and communicating clearly. If you're excited about building a security program at a fast-growing fintech and protecting data that materially impacts people's lives, reach out.

- Own our application and cloud security posture across our infrastructure and full stack product

- Run our SOC 2 certification effort (evidence, controls, auditor interface), interface with vendors for pen testing, and prep us for the next compliance lifts like CASA, FCRA, state-specific data regs, and enterprise security reviews

- Build the secure SDLC: threat modeling, security-sensitive code review, SAST/DAST/SCA tooling, secrets management, and dependency hygiene

- Lead incident response and vulnerability management. Triage, contain, remediate, and run blameless postmortems

- Partner with engineering on identity, access, and data handling for PII, credit, and payment data so secure-by-default is the easy path

- Own customer security questionnaires and represent Boom in security conversations with enterprise property management partners

- 5+ years in security engineering or application security with hands-on web development experience. Track record securing production web apps and cloud environments, with AWS strongly preferred

- Working knowledge of SOC 2 (bonus for ISO 27001, HIPAA, PCI, GLBA/FCRA). You're ready to own the program, not just contribute to it

- Strong grasp of common attack classes (OWASP Top 10, auth/session, SSRF, deserialization, supply chain) and how they show up in modern web stacks

- Backend-leaning full stack on Ruby (Grape and Sequel) with React/Next.js and TypeScript on the frontend. Comfortable with third-party APIs (OAuth, webhooks, rate limits, idempotency), observability, on-call, real incidents, and Terraform

- You're already running AI coding agents autonomously, including overnight, to ship and drive your own efficiency. Daily Claude Code use is table stakes

- Strong communicator who can explain risk to non-security audiences and push back without slowing the business. Self-starter in a fast-paced, early-stage environment, with empathy for our end users including low-to-moderate-income renters whose financial data we steward