Skip to content

Open nowPosted 453 days ago

Sr. Exploit Developer (Cheltenham, UK)

VulnCheck14 open roles

Where
Cheltenham, United Kingdom
Get the CV for this job

From $25 per CV, paid once. No subscription.

Your applicationOpen nowSr. Exploit Developer (Cheltenham, UK)VulnCheck · Cheltenham, United Kingdom
  1. YouYes, apply to this one.

  2. CV RocketCV written for this posting.

  3. 25 readersRecruiter, hiring manager, skeptic. Round after round.

  4. CV RocketApplied on VulnCheck's own form.

The reply lands in your private mailbox

3×more interviews than doing it yourself with ChatGPT.

The clock on this job

Early applications get read.

9.8% of postings close within 7 days. Measured by our own scanner across the market. VulnCheck postings stay open a median of 19 days.

Share of postings closed within
  1. 1.9%1 day
  2. 3.9%3 days
  3. 9.8%7 days
  4. 15.5%14 days
  5. 33.7%30 days
This job: posted 453 days ago

VulnCheck median: 19 days open

The posting

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

VulnCheck is looking for a Senior Exploit Developer with a background in reverse engineering and exploit development. This role is on our Initial Access Intelligence team, which delivers exploits and related artifacts designed to give VulnCheck customers visibility into exploitation from exposure through execution and detection. You’ll work with a seasoned team of hackers and threat researchers to help global enterprises, governments, and intelligence firms defend against emerging threats and get ahead of the attacker curve.

While initial access vulnerabilities are our main focus area, you’ll also have the opportunity to work on a variety of local and other exploits, as well as our open-source go-exploit framework. This is a 100% remote role but we're primarily looking for candidates in Cheltenham, United Kingdom.

Why Join VulnCheck?

VulnCheck stands behind its mission to influence how organizations worldwide understand, assess, and remediate security vulnerabilities - and to deliver intelligence-based solutions that change the world.

You’ll be joining a collaborative, supportive environment that values intellectual curiosity, technical mastery, and personal growth. (And more - below)

  • Leverage your expertise: Work on cutting-edge threat intelligence initiatives that matter, alongside the top domain experts in the field.
  • Shape the industry: Influence how vulnerabilities are classified, scored, mapped, and remediated at scale for enterprise customers and for the entire cybersecurity industry.
  • Grow your impact: Collaborate with global partners, lead high-visibility projects, and drive standards across the security community.
  • Innovate and explore: Conduct research and develop tools for automating and improving vulnerability enrichment and mapping.

What You'll Do

  • Reverse engineering software to discover the root cause analysis (RCA) of vulnerabilities.
  • Authoring original software exploits for initial access vulnerabilities, when little or no publicly-available proof of concept code for exploiting such vulnerabilities exists.
  • Implementing detections (such as Suricata & Snort signatures, YARA rules, etc.) for identifying such initial access vulnerabilities being exploited on the wire
  • Writing Attack Surface Management (ASM) queries (e.g., Shodan, Census, FOFA, & ZoomEye) for finding vulnerable systems likely to be targeted

Why You'll Bring

  • Prior experience with writing exploit code for RCE / initial access vulnerabilities (that do not require authentication to exploit)
  • Experience working on technical projects remotely, alone, and on small teams

Preferred Qualifications

  • Prior Cybersecurity work experience (at a vendor or in Government).
  • Able to share example exploit code written.

*IMPORTANT NOTE: This position may involve access to technology subject to U.S. export control regulations. Employment is contingent upon the company's ability to authorize access under applicable export control, sanctions, and any other applicable legal or contractual requirements. The company does not guarantee and is under no obligation to seek such authorization if it would be necessary.

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

  • Competitive salary with employee equity program
  • Health, dental, and vision coverage
  • Unlimited PTO
  • Pension Contribution
  • Remote friendly environment with flexibility
  • Expense reimbursement for home internet and phone
  • 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.

From $25, paid onceGet the CV for this job

What happens when you press

One press. We do the rest.

  1. A CV for this posting

    Written against VulnCheck's own wording, from every piece of relevant proof in your profile.

  2. 25 readers review it

    Recruiter, hiring manager, skeptic and more read every draft, round after round. You get the best round.

    The review screen in CV Rocket: how each CV was read, round by round.
  3. We apply on VulnCheck's form

    Our application engine gets through the hardest forms there are. Where a question needs you, AI suggests the best answer. Don't want us applying from our IP addresses? Use our Chrome extension: we apply straight from your own browser.

    An application in CV Rocket: every answer filled in on the employer's form.
  4. Every reply, sorted

    VulnCheck's answer lands in your private mailbox, and we classify it on arrival: interview, question, rejection.

    The CV Rocket inbox: each employer reply classified as an interview, an action or a rejection.
  5. Reply with AI

    AI helps you write the email, checks it and sends it. We show you whether the recruiter read it.

  6. The interview in your calendar

    Full integration with your calendar. The invitation goes straight in.

    An interview invitation in the CV Rocket inbox, added to the candidate's calendar.
Get the CV for this job

From $25 per CV, paid once. No subscription.

Why it works

3×

more interviews than doing it yourself with ChatGPT.

ChatGPT writes a CV and never learns what happened to it. We see every reply. For each CV we know:

  • How it was written, and how the review scored it
  • When we applied, and how long after the posting went up
  • Which posting, which company, which city
  • Who got the interview, and who heard nothing

That is how we know which CVs get called.

Get the CV for this job

From $25 per CV, paid once. No subscription.

The numbers game

More applications. More interviews.

Every application goes out with its own CV, written for that posting and paid once. Send enough of them and the law of large numbers finds you the job.

By hand5–10
With CV Rocket100
applications a day

Nearby

Live postings like this one

Same employer first, then the same role elsewhere.

Before you press

Straight answers

Get the CV for this job

From $25 per CV, paid once. No subscription.

What if my background isn't good enough?

We make the most of the background you have. The CV uses every piece of relevant proof your profile holds, and one of the 25 readers reads your whole profile and flags what the CV left out.

Do you really apply for me?

Yes, on the employer's own form, the hardest ones included. Where a question needs you, you answer it right there and AI suggests the best answer. Don't want us applying from our IP addresses? Use our Chrome extension: we apply straight from your own browser.

Is it a subscription?

No. You pay once per CV, from $25. Every application goes out with its own CV, written for that posting.

One job. One CV.
Paid once.

Pick the posting you want. We write for it, apply for you and catch the reply.

Get the CV for this job

From $25 per CV, paid once. No subscription.