Staff Security Engineer, Application Security

SOLANA FOUNDATION; New York (NY); On-site; USD 180,000 - 240,000; Full time

Benefits offered by this job

Equity

Health insurance

401(k) with match

Group term life insurance

Flexible time off

Annual offsites

Job summary

fomo is seeking a Staff Security Engineer to own and elevate our application security program. This hands-on role acts as the technical authority on secure software, partnering with engineering to fix vulnerabilities, build scalable security tooling, and shape security at architecture and code level.

You'll focus on product/app security rather than IT, embedding with product teams to secure how features are designed, built, and shipped across the org.

Qualifications

• 7+ years in security engineering with focus on application security
• Experience with secure code review and threat modeling
• Strong software engineering background that includes production code
• Experience building and scaling AppSec tooling and processes (SAST/DAST, SCA, CI/CD)
• Ability to influence engineering culture and set security standards
• Familiarity with cloud-native environments (AWS/GCP/Azure) and API security

Responsibilities

• Lead security architecture reviews and threat modeling for new features
• Own secure SDLC program including SAST/DAST, SCA and CI/CD gates
• Perform deep code reviews and pen-testing of high-risk services and APIs
• Design internal security tooling and guardrails for speed with safety
• Manage vulnerability triage and remediation with engineering owners
• Oversee external pentest vendors and bug bounty processes
• Set direction on authentication, authorization, API security and data protection
• Mentor engineers on secure coding practices
• Contribute to incident response for app-layer issues
• Help evolve fomo's AppSec roadmap and metrics

Skills

Application security

Threat modeling

Code review

SAST/DAST

CI/CD security

Penetration testing

API security

Communications

Technical leadership

Tools

SAST

DAST

CI/CD tooling

Job description

About fomo

• fomo is a trading app for the rest of us. With fomo you can sign up in seconds and have instant access to any asset on-chain without the need for external wallets, bridges or prior knowledge. fomo has social features that are actually useful - follow top traders (with full access to their portfolio and trades) and find tokens early. fomo does all of this while providing the best-in-class execution and data for experienced traders.
• In just over a year, fomo has onboarded over 2.5 million plus users who have collectively done over $14 billion dollars in trading volume.
• fomo has made ~$68M of revenue since launching in May 2025, and has raised a total of ~$100M in addition from T1 investors. Investors include Benchmark, Index Ventures, and Union Square Ventures.
• https://fomo.family/
• https://x.com/fomo

About the role

• We're hiring a Staff Security Engineer to own and elevate our application security program. This is a hands‑on, high‑leverage role for someone who wants to be the technical authority on how we build secure software, not just someone who reviews tickets after the fact. You'll work directly with the engineering team to find and fix vulnerabilities, build tooling that scales security across the org, and shape how fomo thinks about security at the architecture and code level.
• This role skews heavily toward product and application security. You won't be spending your time on corporate IT, endpoint management, or employee‑facing security operations. Instead, you'll be embedded in how our product is designed, built, and shipped.

What you'll do

• Lead security architecture reviews and threat modeling for new features and major system changes, partnering directly with engineering and product teams from design through launch
• Own our secure SDLC program: static and dynamic analysis (SAST/DAST), dependency and software composition analysis, secrets scanning, and CI/CD security gates
• Perform deep‑dig code reviews and manual penetration testing of high‑risk services, APIs, and web applications
• Design and build internal security tooling and guardrails that let engineers move fast without introducing risk
• Run and mature our vulnerability management program, including triage, severity scoring, and driving remediation with engineering owners
• Manage relationships with external pentest vendors and bug bounty programs, and turn findings into durable fixes rather than one‑off patches
• Set technical direction on authentication, authorization, API security, and data protection patterns used across the product
• Mentor engineers on secure coding practices and act as a go‑to resource for security questions across the org
• Contribute to incident response when application‑layer issues arise
• Help define and evolve fomo's overall AppSec roadmap and metrics

What we're looking for

• 7+ years in security engineering, with a substantial and recent focus on application security (not primarily corporate/IT security)
• Deep hands‑on experience with secure code review, threat modeling, and common vulnerability classes (OWASP Top 10, auth/session flaws, SSRF, injection, business logic flaws, etc.)
• Strong software engineering background; comfortable reading and writing production code, not just running scanners
• Experience building and scaling AppSec tooling and processes (SAST/DAST, SCA, CI/CD security integration) at a growing company
• Track record of driving security into engineering culture through influence, not just gatekeeping
• Familiarity with cloud‑native environments (AWS/GCP/Azure), container security, and modern API architectures
• Excellent communication skills; able to explain risk to both engineers and non‑technical stakeholders
• Prior experience as a technical lead or staff‑level IC who can operate with high autonomy

Nice to Have

• Experience with bug bounty program management
• Background in a high‑growth consumer or marketplace product

Why fomo

You'll be the first dedicated AppSec hire shaping the security foundation of a company at real scale, with the autonomy to set standards rather than inherit them.

Compensation and benefits

fomo offers:

• Competitive cash compensation and equity
• Comprehensive health insurance including medical, dental, and vision for you and your dependents; including tax savings benefits such as HSAs and FSAs
• 401(k) with match
• Group term life insurance
• Flexible time off
• Annual company offsites

Equal opportunity

fomo is an equal opportunity employer. We consider qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity or expression, national origin, age, disability, veteran status, or any other characteristic protected by applicable law. If you need a reasonable accommodation during the hiring process, please let us know.