---
title: 'Senior Software Engineer (US) at VulnCheck'
canonical: 'https://feeny.ai/job/senior-software-engineer-us-vulncheck-massachusetts-or-maryland-or-greater-4w11aexns3c8'
type: 'job'
last_seen: '2026-10-18'
---

# Senior Software Engineer (US) at VulnCheck

- **Company:** VulnCheck
- **Location:** Massachusetts OR Maryland OR Greater Austin, TX
- **Posted:** 2026-07-31
- **Last confirmed live:** 2026-10-18
- **Apply:** https://job-boards.greenhouse.io/vulncheck/jobs/4329905009

## Job description

Sr. Software Engineer - US

Location: Massachusetts, Maryland, or Greater Austin, TX (Remote) Team: Product & Engineering Employment Type: Full-Time

## 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 looking for a Senior Software Engineer to design, build, and scale the core systems that power VulnCheck’s vulnerability intelligence platform. This is a high-impact, hands-on role where you’ll own critical services and data pipelines end-to-end—from design through production.

You’ll play a key role in shaping architecture, improving system performance and reliability, and delivering features that directly impact customers. While you’ll help resolve production issues, your focus will be on building durable, scalable solutions that prevent them. Although this is a 100% remote role, preference is for candidates located in either Greater Boston, DMV (Delaware, Maryland, Virginia), or Greater Austin, TX.

## What You’ll Do

- Design and build scalable backend systems, APIs, and data pipelines
- Own services end-to-end, including architecture, development, deployment, and operation
- Lead technical design discussions and contribute to system architecture decisions
- Write high-quality, maintainable code and drive engineering best practices
- Debug complex production issues and implement long-term, scalable solutions
- Improve system performance, reliability, and observability across the platform
- Partner closely with Product, Data, and other Engineering teams to deliver impactful features
- Mentor junior engineers and contribute to a strong engineering culture
- Participate in incident response and on-call rotations

## What You’ll Bring

- 5+ years of experience building and scaling backend systems as a software engineer
- Strong programming skills in one or more languages (Python, Go, Java, etc.)
- Experience in cybersecurity, vulnerability management, or threat intelligence
- Experience designing distributed systems and working with microservices architectures
- Deep understanding of APIs, system design, and cloud infrastructure (AWS preferred)
- Experience working with data pipelines, ETL systems, or high-volume data processing
- Proven ability to debug and optimize production systems
- Strong ownership mindset with the ability to lead projects independently
- Excellent communication skills and ability to collaborate cross-functionally

## Preferred Qualifications

- Familiarity with CVE, NVD, KEV, or exploit intelligence datasets
- Experience with streaming systems or real-time data processing
- Background in high-growth or startup environments

## 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:

## Benefits and Perks

- Unlimited PTO
- 401k plan with 100% match on first 3%, then 50% of the next 3-5% of compensation
- Comprehensive healthcare coverage
- Generous paid parental leave
- Remote friendly environment with flexibility
- Expense reimbursement for Cell Phone & Internet
- Ongoing professional development, coaching, and learning resources
- Opportunities for career advancement within a fast-growing team

## 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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