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
- Technical ownership of critical platform capabilities across multiple engineering teams
- Architecture of distributed backend systems supporting APIs, MCP and enterprise integrations
- Engineering standards covering code quality, reliability, observability and maintainability
- Mentoring Senior Engineers and acting as a technical advisor for Engineering Managers and Product Managers
- Driving architectural decisions balancing customer value, scalability and operational simplicity
What Success Looks Like After 12 Months
- Key platform capabilities delivered to production
- Measurable improvements in reliability, scalability and engineering velocity
- Architecture decisions documented and adopted across teams
- Warsaw Hub recognised for engineering excellence and technical leadership
Required Experience
- 8+ years building large-scale backend systems
- Strong software architecture experience in distributed systems
- Hands-on expertise with cloud platforms (AWS preferred)
- Experience with event-driven architectures, APIs and microservices
- Excellent communication and mentoring skills
- Ability to influence without formal authority
Preferred Experience
- Kafka, Kubernetes, Terraform
- Scala, Java, Kotlin or modern TypeScript/Node.js
- Observability platforms such as Grafana or Prometheus
- AI-assisted software development using Claude, GitHub Copilot or similar tools
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
- Recruiter conversation
- Hiring Manager interview
- Technical architecture interview
- System design session
- Leadership conversation
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!
Skills Required
- 8+ years building large-scale backend systems
- Strong software architecture experience in distributed systems
- Hands-on expertise with cloud platforms, preferably AWS
- Experience with event-driven architectures, APIs, and microservices
- Excellent communication and mentoring skills
- Ability to influence without formal authority
- Experience with Kafka, Kubernetes, or Terraform
- Experience with Scala, Java, Kotlin, or modern TypeScript/Node.js
- Experience with observability platforms such as Grafana or Prometheus
- Experience using AI-assisted software development tools such as Claude or GitHub Copilot
Cognism Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Cognism and has not been reviewed or approved by Cognism.
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Fair & Transparent Compensation — Sales compensation for SDR and AE roles is considered broadly in line with market norms, with on‑target earnings seen as attainable for strong performers. Role and location specifics suggest UK SDR pay is near market, enabling reasonable earnings for performers.
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Leave & Time Off Breadth — Annual leave is presented as generous, with an extra day off for birthdays and region‑specific policies. This positions time off as a meaningful part of the core package.
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Parental & Family Support — Maternity and paternity packages are highlighted as “excellent,” with details varying by country. This points to an emphasis on family support in the offering.
Cognism Insights
What We Do
Cognism is a leader in international sales intelligence, setting a new standard for data quality and compliance, trusted by 1800+ revenue teams worldwide. Cognism helps businesses find, engage and close their dream prospects by providing premium company and contact information, including firmographics, technographics, sales trigger events, intent data, verified business emails and phone-verified mobile numbers. Next level GDPR & CCPA compliance, combined with innovative technology and integrations with leading CRM and sales engagement partners, make Cognism the number one choice for businesses looking to create a predictable pipeline, find their next best business opportunity and overcome global compliance barriers.
