---
title: 'Senior Security Engineer - US at VulnCheck'
canonical: 'https://feeny.ai/job/senior-security-engineer-us-vulncheck-united-states-9fja01gc0d7y'
type: 'job'
last_seen: '2026-10-18'
---

# Senior Security Engineer - US at VulnCheck

- **Company:** VulnCheck
- **Location:** United States
- **Work type:** remote
- **Posted:** 2026-10-15
- **Last confirmed live:** 2026-10-18
- **Apply:** https://job-boards.greenhouse.io/vulncheck/jobs/4398907009

## Job description

Senior Security Engineer - US

## About VulnCheck

Exploitation prevention is only as strong as the intelligence driving those efforts, and most of the industry is still running on intelligence that lacks exploit context. VulnCheck, The Exploit Intelligence Company, delivers structured exploit intelligence on what is actively weaponized in the wild, purpose-built for the data lakes, ETL pipelines, automation, and AI and LLM workflows your infrastructure already runs on, raising the capability of everything it powers.

## About the Role

We're hiring a Senior Security Engineer to work side-by-side with our engineering team, embedding security into how we build and ship — not bolting it on after the fact. You'll partner with engineers on design reviews, help harden the platform as it grows, and build the tooling and automation that lets security scale without slowing anyone down. You'll report to our VP of Information Security and have real autonomy to identify problems and build the solutions yourself and in collaboration with engineering.

This is a builder's role. In addition to use of vendor tools, you'll be writing code and infrastructure that turns security and compliance work into repeatable, self-service processes for the business helping to automate and improve what's manual today, closing gaps in how we detect and respond to issues, and giving engineering the guardrails and feedback loops they need to move fast safely.

## What You'll Do

Partner with Engineering on Platform Security

- Work directly with engineering on design and architecture reviews, threat modeling, and secure-by-default patterns for new services
- Review and harden IaC across our cloud environments (EKS, Aurora, OpenSearch, S3, IAM)
- Lead least-privilege IAM decomposition and drive adoption of stronger identity patterns across the platform
- Support disaster recovery testing and resilience exercises alongside the infrastructure team

Build Tooling That Scales Security

- Design and build automation that turns detection, response, and compliance work into repeatable processes rather than manual effort
- Improve and extend onboarding/offboarding automation, alert triage pipelines, and identity/access anomaly detection
- Build internal tools that give engineering fast, self-service ways to check their own security posture

## What You’ll Bring

- 5+ years in security engineering, with real depth in AWS security and Infrastructure-as-Code (Terraform/Terragrunt strongly preferred)
- Firm working knowledge of Kubernetes/EKS security — RBAC, network policies, pod security standards, image scanning, and cluster hardening
- Strong written communication — you'll document your own work, since we're a small, high-trust team
- A track record of building tools or automation that solved a security problem at scale, not just running existing tools
- Previous use of tools like Crowdstrike, Wiz, Security Hub
- Experience with golang
- Comfortable working directly with software engineers — in code reviews, design discussions, and incident response
- Incident investigation and RCA tracking
- Experience supporting a SOC 2  (or similar framework) program from the technical/evidence side
- Experience with Google Workspace as an identity/IdP source of truth
- Self-directed: you'll often be the only engineer working a problem end to end

## Preferred Qualifications

- Exposure to offensive security or red/purple teaming
- Familiarity with Aurora or managed OpenSearch specifically

## What We Offer

We believe people do their best work when they feel supported, trusted, and valued. VulnCheck offers benefits designed to meet a wide range of needs and lifestyles, tailored to your country of employment:

- Generous, flexible time off
- Retirement/pension plan contributions (e.g., 401k with match in the US; local pension schemes elsewhere)
- Comprehensive healthcare coverage
- Generous paid parental leave
- Remote-friendly environment with flexibility
- Support for home office costs (phone & internet)

Specific benefit details vary by country and are confirmed during the offer process.

## Why Join Us

Built on over two decades of cybersecurity experience, our team of experts understands the intricacies of vulnerabilities, their exploitation in the wild, and how to leverage this data to build more effective cybersecurity products that produce better outcomes for organizations.

VulnCheck gives organizations a tactical advantage by providing best-in-class exploit & vulnerability intelligence information. We have a sense of duty to protect the critical infrastructure we rely on including medical devices, power grids and telecommunication networks. We were founded in 2021 in Lexington, Massachusetts.

VulnCheck has a transparent, collaborative, and supportive culture - we are looking for people who have a growth mindset, are curious and innovative. Our team is smart, but humble, hardworking, and supportive.

VulnCheck is proud to be an Equal Employer Opportunity employer. We do not discriminate based upon race, religion, color, national origin, gender (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics. VulnCheck is committed to working with and providing reasonable accommodations to applicants with physical and mental disabilities. *Even if your experience doesn’t perfectly align with the job description, we encourage you to apply—we value potential just as much as a perfect resume.

## About VulnCheck

## Company Overview
- **One-liner**: VulnCheck provides a next-generation Cyber Threat Intelligence platform that delivers exploit and vulnerability intelligence to help organizations prioritize and remediate vulnerabilities before attacks occur.
- **Entity Type**: Private (Series B)
- **Headquarters**: Lexington, Massachusetts, USA
- **Founded**: 2021
- **Founders**: Anthony Bettini (CEO)

## Core Business
- **Primary industry**: Computer and Network Security / Cyber Threat Intelligence
- **Target customers**: Government agencies, large enterprises, and cybersecurity solution providers (B2B, Enterprise)
- **Mission or purpose**: Help organizations outpace adversaries by providing critical, early-warning vulnerability and exploit intelligence so defenders can take action before attacks happen.

## Products & Services
- **VulnCheck Platform**: A next-generation Cyber Threat Intelligence platform that aggregates, analyzes, and delivers exploit and vulnerability intelligence.
- **Initial Access Intelligence**: In-house developed exploit PoCs, packet captures, and Suricata signatures to defend against initial access vulnerabilities.
- **Canary Intelligence**: Data from globally deployed Internet sensors revealing the first signs of vulnerability exploitation in the wild.
- **Target Intelligence**: A service where a user provides a CVE and VulnCheck identifies every vulnerable host on the internet at that moment.
- **Early Warning System**: Real-time alerting of changes in the vulnerability landscape, providing early access to new vulnerability information not found in the NVD.
- **Vulnerability Prioritization**: Helps organizations prioritize vulnerabilities that matter based on the current threat landscape and defer those that don't.

## Market Standing
- **Valuation/Market Cap**: Not disclosed
- **Total Funding**: $44.95 million
  - Seed Round (Feb 2023): $3.2M led by Sorenson Ventures
  - Seed Round (Apr 2024): $4.8M led by Sorenson Capital
  - Series A (Apr 2025): $12.0M led by Ten Eleven Ventures
  - Series B (Feb 2026): $25.0M led by Sorenson Capital
- **Annual Revenue**: $3.9 million (estimated)
- **Notable Investors**: Sorenson Capital, Ten Eleven Ventures, In-Q-Tel, National Grid, NextEra Energy
- **Growth Signals**: 
  - Headcount grew 190% YoY (from ~2 to 59 employees)
  - Operates in 5 countries (US, UK, Singapore, Canada, Australia)
  - LinkedIn followers grew 82.8% in the last year
  - 20 active job postings (as of mid-2026)
  - Selected to power government agencies and large enterprises, covering billions of assets globally

## Competitive Advantages
- **Renowned Research Team**: Comprises a "who's who" of cybersecurity research with decades of experience uncovering hundreds of 0-days and holding 10+ patents.
- **Proprietary Data Sources**: Globally deployed Internet sensors (Canary Intelligence) provide unique visibility into real-world exploitation.
- **Speed Advantage**: In 2020, attackers needed 1.6 years to weaponize a known vulnerability; by 2025 that window collapsed to just 21 days. VulnCheck's intelligence helps defenders act first.
- **Unique Intelligence**: Early access to vulnerability information not available in the National Vulnerability Database (NVD) with dozens of unique data fields.
- **Open Source Contribution**: Actively contributes back to the open-source security community.

## Strategic Focus
- Continuing to expand their exploit intelligence capabilities and data sources
- Growing their government and enterprise customer base
- Expanding internationally (recent hires in UK, Singapore, Canada, Australia)
- Developing AI-powered capabilities (hiring Senior AI Engineer)
- Building out sales and customer success teams to support rapid growth

## Why Work Here
- **Remote-first culture**: VulnCheck is a remote-only company, with team hubs in Boston (MA), Austin (TX), Columbia (MD), and Cheltenham (UK) [vulncheck.com](https://www.vulncheck.com/careers)
- **Impactful mission**: Directly contributes to preventing cyber attacks before they happen
- **Collaborative environment**: Highly skilled team with deep technical expertise
- **Benefits**: Competitive compensation, employer-paid health/dental/vision insurance, generous PTO & holidays
- **Growth opportunities**: Rapidly scaling company (190% YoY headcount growth) with significant career advancement potential
- **Learning culture**: Continuous learning environment, open source contribution, and renowned research team

## Sources
1. [vulncheck.com](https://vulncheck.com/)
2. [vulncheck.com/company/about](https://www.vulncheck.com/company/about)
3. [vulncheck.com/careers](https://www.vulncheck.com/careers)
4. [linkedin.com/company/vulncheck](https://www.linkedin.com/company/vulncheck)
5. [builtin.com/company/vulncheck](https://builtin.com/company/vulncheck)
6. [job-boards.greenhouse.io/vulncheck](https://job-boards.greenhouse.io/vulncheck)

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