Staff Software Engineer
Cognism
Staff Software Engineer
Cognism
B2B sales intelligence with CRM integration
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.
About Cognism
Cognism is one of Europe's leading B2B Sales Intelligence platforms. Our mission is to help revenue teams find, enrich and engage the right customers through trusted, compliant and high-quality data. As part of our R&D transformation we are investing in a new Warsaw Engineering Hub that will become one of Cognism's two primary technology centres.
The Opportunity
This is not a traditional Staff Engineer position. You will become one of the founding senior technical leaders responsible for shaping the architecture, engineering standards and technical culture of the Warsaw Hub. You will work on the strategic DaaS, API and MCP platform that enables enterprise customers and AI agents to consume Cognism data at scale.
What You Will Own
What Success Looks Like After 12 Months
Required Experience
Preferred Experience
Why Join Cognism
Joining now means becoming part of the founding engineering team building Cognism's Warsaw Hub from the ground up. You will influence technology choices, engineering practices and organisational culture while solving complex data-platform challenges with direct business impact.
Our Hiring Process
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!
Cognism provides B2B sales intelligence by giving on-demand access to person and company data to help sales and marketing teams connect with other businesses. It integrates with CRM and sales engagement platforms like Salesforce, HubSpot, SalesLoft, and Outreach, so users can access accurate data directly in the tools they already use. The platform also uses buyer intent signals to indicate when potential clients may be ready to buy, enabling earlier engagement. Cognism aims to increase the efficiency of sales teams by speeding up prospect research and reducing bad data, claiming to boost live conversations significantly. Unlike consumer-focused services, Cognism targets businesses with data that supports business-to-business connections and partnerships across EMEA, NAM, and APAC.
Explore more opportunities at Cognism