--- title: 'Senior Software Engineer – Integrations & Enrich at Cognism' canonical: 'https://feeny.ai/job/senior-software-engineer-integrations-enrich-cognism-warsaw-qw17rcnrje3t' type: 'job' last_seen: '2026-09-06' --- # Senior Software Engineer – Integrations & Enrich at Cognism - **Company:** Cognism - **Location:** Warsaw, Poland - **Posted:** 2026-08-26 - **Last confirmed live:** 2026-09-06 - **Apply:** https://www.cognism.com/jobs?gh_jid=4957139101 ## Job description ## 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. ## About the Role As a Senior Software Engineer within the Integrations & Enrich domain, you will build the capabilities that connect Cognism with customers' technology ecosystems. Your work will focus on CRM integrations, enrichment workflows, synchronization services and customer-facing data experiences. You will help enterprise customers seamlessly move trusted Cognism data into platforms such as Salesforce, HubSpot and other business applications. ## What You'll Do - Design and develop backend services supporting CRM integrations and enrichment workflows - Build scalable APIs enabling secure data exchange between Cognism and customer platforms - Own software throughout its lifecycle, from design through production operations - Collaborate closely with Product Managers, Customer Success, Data Engineering and Platform teams - Improve integration reliability, synchronization performance and customer experience - Write high-quality automated tests and participate in code reviews - Contribute to architecture discussions and engineering best practices - Leverage AI-assisted engineering tools to improve software delivery and quality Technology Environment - Cloud-native backend services running on AWS - REST APIs and event-driven microservices - CRM integrations (Salesforce, HubSpot and similar ecosystems) - Kafka and asynchronous messaging - SQL / NoSQL databases - Modern CI/CD pipelines and automated testing What Success Looks Like - Reliable customer integrations with measurable improvements in stability and performance - High-quality enrichment services supporting enterprise customers - Production ownership with rapid issue resolution - Reusable engineering components adopted across multiple product teams - Continuous improvements in customer experience and engineering quality Required Experience - 5+ years of professional software engineering experience - Strong backend engineering skills using Java, Scala, Kotlin, C# or modern TypeScript/Node.js - Experience building APIs and system integrations - Knowledge of distributed systems and asynchronous processing - Experience with AWS or another major cloud platform - Understanding of CI/CD, automated testing and production support - Excellent communication skills and fluent English ## Nice to Have - Experience integrating with Salesforce, HubSpot or other CRM platforms - Knowledge of event streaming using Kafka - Experience with ETL or data enrichment pipelines - Infrastructure as Code and Kubernetes - Experience using AI coding assistants such as Claude Code, Cursor or GitHub Copilot ## 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! ## About Cognism ## Company Overview - **One-liner**: Cognism provides premium B2B sales intelligence and data solutions for revenue teams, with a strong focus on European markets and compliance. - **Entity Type**: Private, venture-backed (total funding $131.5M) - **Headquarters**: London, United Kingdom - **Founded**: 2015 - **Founders**: Not publicly disclosed ## Core Business - **Primary industry**: Sales Intelligence / B2B Data - **Target customers**: Enterprise and mid-market sales, marketing, and revenue operations teams (B2B, especially those prospecting into EMEA) - **Mission or purpose**: “Making data more usable” – helping teams become fluent in their data so they can find the right people, move faster, and grow without guesswork. ## Products & Services - **Sales Intelligence**: Contact and company data with phone-verified mobiles, decision-maker coverage, and actionable signals (intent, hiring, funding). - **Data-as-a-Service (DaaS)**: Real-time access to verified B2B data via API or batch delivery, powered by a proprietary data fusion engine that combines news, registries, and third-party sources. - **Data Enrichment**: Fill gaps in CRM/marketing databases, prioritise ICP segments, and keep records accurate with continuous refresh (30-day cycle for director+ data). - **CRM Enrichment**: Automatically enrich inbound leads so records are complete and routable from the moment they enter the CRM. - **Compliance Layer**: GDPR and CCPA compliant data sourcing, strong Do-Not-Call coverage, ISO 27001 and SOC2 framework alignment. ## Market Standing - **Valuation/Market Cap**: Not disclosed - **Key Metric**: Annual revenue of ~GBP 32.9M (LinkedIn estimate); total funding of $131.5M across 10 rounds - **Notable Investors/Partners**: Not listed in available sources - **Growth Signals**: Trusted by 4,000+ revenue teams worldwide; operates in 20 countries; offices in London, Boston, Paris, Cologne, Skopje, and Zadar. Note: LinkedIn reports a 17% year-over-year headcount decline (372 employees, -93 people), which may reflect restructuring or strategic shifts. ## Competitive Advantages - **Compliance-first posture**: Built-in GDPR/CCPA compliance and extensive European Do-Not-Call coverage – a key differentiator for teams selling into EMEA. - **Phone-verified data**: Additional verification layers on mobile numbers result in up to 3x higher connect rates. - **European expertise**: Deep understanding of complex European markets, regulations, and local context. - **Data refresh cadence**: Decision-maker data refreshed every 30 days, ensuring high accuracy. - **Proprietary AI-driven data fusion**: Stitches hundreds of data points per company and filters through verification layers. ## Strategic Focus - Raising the standard for B2B data quality and compliance. - Expanding platform capabilities (signals, enrichment, API) to cover the full data lifecycle. - Scaling internationally while maintaining a “data fluency” approach – precision over volume. ## Why Work Here - **Culture**: Values include “deeply understand our customers,” “own the outcome together,” and “celebrate impact wherever it comes from.” Emphasis on trust, ownership, and collaboration. - **Global team**: Employees across 20 countries with offices in London, Boston, Paris, Cologne, Skopje, and Zadar. Likely hybrid/office-based depending on location. - **Diversity**: Careers page highlights that a significant portion of the revenue org and overall workforce are women (exact percentages not provided). - **Growth**: Opportunity to work on a product that powers modern revenue teams; fast-paced environment with real impact. - **Recruitment note**: Cognism warns of recruitment scams – they only hire for roles in official office locations and never ask for payment. ## Sources 1. [cognism.com/about-us](https://www.cognism.com/about-us) 2. [cognism.com](https://www.cognism.com/) 3. [cognism.com/careers](https://www.cognism.com/careers) 4. [linkedin.com/company/cognism](https://www.linkedin.com/company/cognism) 5. 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