# Senior Security Engineer
**Company:** [Gauntlet](https://hotfix.jobs/companies/gauntlet)
**Location:** Remote
**Experience:** 5+ years
**Skills:** Python, TypeScript, JavaScript, SAST, Edr, SIEM, Claude Code, Codex, LLMs, AI Automation
**Posted:** 2026-06-25
> Senior Security Engineer partnering with Head of Security to build and scale security program for DeFi systems. Owns threat modeling, AppSec tooling, detection operations, vulnerability triage, and AI-driven automation across product, infrastructure, and operations.
## Job Description
## What you'll do

- Threat model new product features and integrations and harden systems with effective controls.
- Operate and evolve the application security toolchain (SAST, dependency and supply-chain checks, secrets scanning) and keep it high-signal for developers.
- Own day-to-day security operations across the detection stack (EDR, SIEM, on-chain monitoring, identity, cloud): triage what fires, resolve what matters, and reduce noise.
- Triage vulnerability and bug-bounty findings by real exposure, drive remediation, and support incident response end to end.
- Take security tooling and projects from evaluation through org-wide rollout, collaborating across engineering, infra and other teams.
- Automate repetitive, judgment-light security work with AI: vulnerability and AppSec workflows, access reviews, SOC 2 and audit evidence collection, vendor due diligence, and recurring reporting.
- Build reusable AI components, Claude skills, and agents that engineering and other functions can adopt.

## What you Bring

- 5+ years in hands-on security engineering spanning product or application security and security operations.
- Track record of technical security assessments of software and systems, including system hardening, security policy analysis and implementing effective controls.
- An adversarial mindset: you think like an attacker and pressure-test assumptions, including your own.
- Proficiency in Python, TypeScript, or JavaScript, working with Claude Code, Codex or similar AI tools.
- Hands-on experience applying AI and LLMs to automation and building reusable tooling or components that other engineers adopted.
- Experience owning security projects end to end, from vendor selection through org-wide rollout, across multiple teams.
- Experience securing high-value or high-throughput transaction systems.
- Clear communication: you explain risk plainly and drive findings to closure.

## Bonus Points

- Crypto/blockchain security experience.

## Benefits & Perks

- Remote first - work from anywhere in the US & CAN!
- Regular in-person company retreats and cross-country "office visit" perk
- 100% paid medical, dental and vision premiums for employees
- $1,000 WFH stipend
- Monthly reimbursement for home internet, phone, and cellular data
- Unlimited vacation
- 100% paid parental leave of 12 weeks
- Fertility benefits
- Opportunity for incentive compensation
**Apply:** https://hotfix.jobs/jobs/senior-security-engineer-at-gauntlet-85c54340-fd66-4f7c-969a-b076c6812746
**Canonical:** https://hotfix.jobs/jobs/senior-security-engineer-at-gauntlet-85c54340-fd66-4f7c-969a-b076c6812746