About ClickHouse Recognized on the 2025 Forbes Cloud 100 list, ClickHouse is one of the most innovative and fast-growing private cloud companies. With more than 4,000 customers and ARR that has grown over 250 percent yea…
Skills: Pentesting, Red teaming, Product security, Cloud security, Vulnerability assessment
About the team The Security Team is responsible for providing key security capabilities covering application, cloud and enterprise security, incident response, detection and GRC. Our team is looking for an experienced, h…
Skills: Pentesting, Red Teaming, Product Security, Cloud Security, Vulnerability Assessment
About ClickHouse Recognized on the 2025 Forbes Cloud 100 list, ClickHouse is one of the most innovative and fast-growing private cloud companies. With more than 4,000 customers and ARR that has grown over 250 percent yea…
About ClickHouse Recognized on the 2025 Forbes Cloud 100 list, ClickHouse is one of the most innovative and fast-growing private cloud companies. With more than 4,000 customers and ARR that has grown over 250 percent yea…
Skills: Site Reliability Engineering, Go, Python, AWS, Azure
About ClickHouse Recognized on the 2025 Forbes Cloud 100 list, ClickHouse is one of the most innovative and fast-growing private cloud companies. With more than 4,000 customers and ARR that has grown over 250 percent yea…
As Director of Product Management, you'll define the multi-year strategy for the ClickHouse Cloud platform. You'll lead the product direction for foundational cloud capabilities such as multi-region replication, distribu…
About ClickHouse Recognized on the 2025 Forbes Cloud 100 list, ClickHouse is one of the most innovative and fast-growing private cloud companies. With more than 4,000 customers and ARR that has grown over 250 percent yea…
Skills: Threat modeling, Security assurance, Vulnerability assessment, Penetration testing, C++
About ClickHouse Recognized on the 2025 Forbes Cloud 100 list, ClickHouse is one of the most innovative and fast-growing private cloud companies. With more than 4,000 customers and ARR that has grown over 250 percent yea…
About the team The Security Team is responsible for providing key security capabilities covering application, cloud and enterprise security, incident response, detection and GRC. Our team is looking for an experienced, h…
About the team The Security Team is responsible for providing key security capabilities covering application, cloud and enterprise security, incident response, detection and GRC. Our team is looking for an experienced, h…
About ClickHouse Recognized on the 2025 Forbes Cloud 100 list, ClickHouse is one of the most innovative and fast-growing private cloud companies. With more than 4,000 customers and ARR that has grown over 250 percent yea…
About ClickHouse Recognized on the 2025 Forbes Cloud 100 list, ClickHouse is one of the most innovative and fast-growing private cloud companies. With more than 4,000 customers and ARR that has grown over 250 percent yea…
About ClickHouse Recognized on the 2025 Forbes Cloud 100 list, ClickHouse is one of the most innovative and fast-growing private cloud companies. With more than 4,000 customers and ARR that has grown over 250 percent yea…
Skills: Web marketing, Growth marketing, PLG funnel, A/B testing, Web analytics
About ClickHouse Recognized on the 2025 Forbes Cloud 100 list, ClickHouse is one of the most innovative and fast-growing private cloud companies. With more than 4,000 customers and ARR that has grown over 250 percent yea…
ClickHouse is looking for an experienced Engineering Lead, Web Platform, to lead the technical evolution of our marketing website and the systems that power our digital presence. This is a hands-on player/coach role. You…
We're looking for a Head of Website Growth to own clickhouse.com as a marketing channel. The website is the front door for both our self-serve and sales-led motions, and your job is to turn it into a consistent, measurab…
Skills: Web Growth Marketing, A/B Testing, Conversion Rate Optimization, Web Analytics, Demand Generation
The Learning Team at ClickHouse is growing fast as more and more users discover the power of ClickHouse and need to understand how to use it effectively. As part of that growth, we want to expand our certification progra…
About ClickHouse Recognized on the 2025 Forbes Cloud 100 list, ClickHouse is one of the most innovative and fast-growing private cloud companies. With more than 4,000 customers and ARR that has grown over 250 percent yea…
The Learning Team at ClickHouse is growing fast as more and more users discover the power of ClickHouse and need to understand how to use it effectively. As a member of a small team, you will have the opportunity to work…
About ClickHouse Recognized on the 2025 Forbes Cloud 100 list, ClickHouse is one of the most innovative and fast-growing private cloud companies. With more than 4,000 customers and ARR that has grown over 250 percent yea…
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Full-time
bachelor degree, postgraduate degree
Flexible work environment, Healthcare, Equity, Flexible time off, Home office setup, Global gatherings
Posted 9d ago
~40 hrs/week
Remote in Netherlands
Responsibilities
You will identify security gaps and vulnerabilities across ClickHouse offerings while executing internal red team assessments and penetration tests. Additionally, you will develop automated tooling and partner with engineering teams to improve the security posture of platforms and services.
Requirements
Candidates must have 7+ years of experience in pentesting, red teaming, and product security with strong knowledge of cloud environments and distributed systems. Proficiency in designing adversary scenarios and building security automation tools is essential for this role.
Full job description
About ClickHouse
Recognized on the 2025 Forbes Cloud 100 list, ClickHouse is one of the most innovative and fast-growing private cloud companies. With more than 4,000 customers and ARR that has grown over 250 percent year over year, ClickHouse leads the market in real-time analytics, data warehousing, observability, and AI workloads.
The company’s sustained, accelerating momentum was recently validated by a $400M Series D financing round. Over the past three months, customers including Capital One, Lovable, Decagon, Polymarket, and Airwallex have adopted the platform or expanded existing deployments. These customers join an established base of AI innovators and global brands such as Meta, Cursor, Sony, and Tesla.
We’re on a mission to transform how companies use data. Come be a part of our journey!
About the team
The Security Team is responsible for providing key security capabilities covering application, cloud and enterprise security, incident response, detection and GRC. Our team is looking for an experienced, hands-on security practitioner, who will drive the adoption of modern security processes and tooling, with focus on supporting our engineering and product teams in improving the security posture of our platforms and services.
What you will do:
Identify security gaps and vulnerabilities in all ClickHouse offerings triage a wide range of vulnerabilities reported via our bug bounty program, responsible disclosure, GitHub Issues covering web, API and server - client assets including low level memory issues like heap or buffer overflows
Plan and execute internal red team assessments and penetration tests against ClickHouse infrastructure, cloud environments, designing realistic adversary scenarios to test detection, response and control effectiveness
Assess AI/LLM-specific attack surface across ClickHouse's own AI-powered features and internal AI tooling, including prompt injection, model/data exfiltration, and unsafe agentic tool-use patterns
Build and operate agentic tooling for reconnaissance, exploit-chaining and attack-path discovery, and apply LLM-assisted fuzzing to accelerate vulnerability discovery across ClickHouse's products and infrastructure
Partner with detection engineering to validate and improve detection coverage during red team exercises, measuring and reporting on control effectiveness and time to detect/respond
Handle information security events and incidents across ClickHouse products and services
Develop processes, tooling and automation to scale security processes and mitigate risks to the business
What you bring along:
7+ years of experience in pentesting, red teaming and product security
Experience supporting engineering and product implementation efforts by performing threat assessments, assurance activities, advisory as well as, in some cases, implementation work across distributed systems covering web, API, client/server assets
Hands-on experience conducting offensive security engagements - internal red teaming, penetration testing and adversary simulation - across cloud, network and application environments
Ability to design adversary scenarios grounded in real threat intelligence (e.g. ransomware operators, supply chain attackers, insider threat) tailored to ClickHouse's risk profile as a multi-tenant cloud data platform
Strong written and verbal communication skills, with ability to translate attack chains into clear, actionable findings for engineering and leadership
Experience building or adapting agentic and LLM-assisted tooling for offensive security use cases (recon automation, exploit chaining, fuzzing harnesses), with judgment on where AI genuinely speeds up an engagement versus adds noise
Familiarity with AI/LLM-specific vulnerability classes and testing methodology
Strong knowledge of and experience with one or more cloud service providers (e.g. AWS, GCP, Azure), Kubernetes, Cilium
Experience implementing and operating engineering security tools and processes (e.g. static / dynamic code analysis, software composition analysis, SBOM, OWASP SAMM, client and network fuzzing tools)
Security as code mindset, with focus on solving problems with automation and scale in mind
Bonus Points:
BS, MS, or PhD in Computer Science or related field
Previous contributions to open source projects
Security or cloud related certifications (AWS, GCP, Azure)
Previous experience in using AI security harnesses for pentesting purposes
Experience building or operating internal red team tooling and infrastructure from scratch, rather than relying solely on off-the-shelf frameworks
For roles based in the United States, the typical starting salary range for this position is listed above. In certain locations, such as the San Francisco Bay Area and the New York City Metro Area, a premium market range may apply, as listed.
These salary ranges reflect what we reasonably and in good faith believe to be the minimum and maximum pay for this role at the time of posting. The actual compensation may be higher or lower than the amounts listed, and the ranges may be subject to future adjustments.
An individual’s placement within the range will depend on various factors, including (but not limited to) education, qualifications, certifications, experience, skills, location, performance, and the needs of the business or organization.
If you have any questions or comments about compensation as a candidate, please get in touch with us at [email protected].
Perks
Flexible work environment - ClickHouse is a globally distributed company and remote-friendly. We currently operate in over 20 countries.
Healthcare - Employer contributions towards your healthcare.
Equity in the company - Every new team member who joins our company receives stock options.
Time off - Flexible time off in the US, generous entitlement in other countries.
A $500 Home office setup if you’re a remote employee.
Global Gatherings – We believe in the power of in-person connection and offer opportunities to engage with colleagues at company-wide offsites.
Culture - We All Shape It
As part of a rapidly scaling start up, you will be instrumental in shaping our culture.
Are you interested in finding out more about our culture? Learn more about our values here. Check out our blog posts or follow us on LinkedIn to find out more about what’s happening at ClickHouse.
Equal Opportunity & Privacy
ClickHouse provides equal employment opportunities to all employees and applicants and prohibits discrimination and harassment of any type based on factors such as race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.
ClickHouse is a fast, open-source columnar database built for real-time data processing and analytics at scale.
Industry
Software Development
Company size
501-1,000 employees
Founded
2021
Headquarters
Palo Alto, California
LinkedIn followers
147,086
Total funding
$1.1B
ClickHouse is a fast, open-source columnar database built for real-time data processing and analytics at scale. ClickHouse Cloud delivers the query speed and concurrency that applications demanding instant insight from large volumes of data require. As AI agents become more embedded in software, generating higher query volumes at tighter latency, ClickHouse provides a high-throughput, low-latency engine purpose-built for that workload.
Offices: Palo Alto, California, US · Amsterdam, NL
ClickHouse is a fast, open-source columnar database built for real-time data processing and analytics at scale.
Industry
Software Development
Company size
501-1,000 employees
Founded
2021
Headquarters
Palo Alto, California
LinkedIn followers
147,086
Total funding
$1.1B
ClickHouse is a fast, open-source columnar database built for real-time data processing and analytics at scale. ClickHouse Cloud delivers the query speed and concurrency that applications demanding instant insight from large volumes of data require. As AI agents become more embedded in software, generating higher query volumes at tighter latency, ClickHouse provides a high-throughput, low-latency engine purpose-built for that workload.
Offices: Palo Alto, California, US · Amsterdam, NL