
Cognism is the leading provider of European B2B data and sales intelligence. Ambitious businesses of every size use our platform to discover, connect, and engage with qualified decision-makers faster…

Cognism is the leading provider of European B2B data and sales intelligence. Ambitious businesses of every size use our platform to discover, connect, and engage with qualified decision-makers faster…
Founded: 2015
Headquarters: London, UK
Sector: B2B sales intelligence / data
Notable funding: $87.5M Series C (led by Viking Global Investors & Blue Cloud Ventures)
Employees (approx.): 1000
Improving B2B prospecting accuracy and compliance for sales and revenue teams operating across Europe and the US.
2015
Software Development
$87.5M
Series C also led by Blue Cloud Ventures with follow-on investors AXA Venture Partners, Swisscom Ventures and Volution.
$10M
Referenced as a $10M Series B in company materials.
£2.8M
Earlier round cited as £2.8M with investors including Oliver Wyman, South Central Ventures, LCIF and Newable.
“Viking Global Investors and Blue Cloud Ventures participation in Series C; follow-on participation from AXA Venture Partners, Swisscom Ventures and Volution”
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Who Are We Cognism is the leading provider of European B2B data and sales intelligence. Ambitious businesses of every size use our platform to discover, connect, and engage with qualified decision-makers faster and close more deals. Headquartered in London with global offices, Cognism’s contact data and contextual signals are trusted by thousands of revenue teams to eliminate the guesswork from prospecting.
THE ROLE The Senior Application Security Engineer is a key member of Cognism’s Information Security Team, reporting into the Application & Infrastructure Security Manager. Your mission is to embed security by design across our engineering and product organization by integrating modern application security practices throughout the full development lifecycle. We focus on building secure, scalable, and resilient systems while enabling the business to innovate quickly and safely. It is to drive a culture where the fastest path for our engineers is the securest path.
You will work closely with Product, Engineering, Architecture, and Data teams to understand risks within our platform, including risks introduced by AI powered features, and ensure the right controls, guardrails, and security patterns are built into the product at its inception – all the while ensuring a balanced approach to the product experience that our thousands of large global enterprise customers use every day.
This role is ideal for a senior IC who is technical, collaborative, and pragmatic , with the ability to influence engineering teams while driving hands on improvements to Cognism’s secure SDLC.
Key Responsibilities Security by Design & Product Integration
Application Risk Assessment & AI Security
Secure SDLC & DevSecOps Enablement
Threat Modelling & Architecture Support
Application Security Testing & Engineering
Collaboration, Education & Influence
CORE COMPETENCIES
Education & Experience
WHY COGNISM At Cognism, we’re not just building a company - we’re building an inclusive community of brilliant, diverse people who support, challenge, and inspire each other every day . If you’re looking for a place where your work truly makes an impact , you’re in the right spot!
Our values aren’t just words on a page—they guide how we work, how we treat each other, and how we grow together. They shape our culture, drive our success, and ensure that everyone feels valued, heard, and empowered to do their best work.
Here’s What We Stand For 🤝 We Own the Outcome Together. 🤓 We Deeply Understand our Customers. 🏆 We Celebrate Impact Wherever It Comes From. At Cognism, we are committed to fostering an inclusive, diverse, and supportive workplace. We welcome applications from individuals typically underrepresented in tech, so if this role excites you but you’re unsure if you meet every requirement, we encourage you to apply!
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