Senior Software Engineer – Integrations & Enrich

Posted 14 Days Ago
Be an Early Applicant
Warsaw, Warszawa, Mazowieckie, POL
In-Office
Senior level
Sales
The Role
Design and develop backend services, APIs, CRM integrations, enrichment workflows, and synchronization services. Own software through production, improve reliability and performance, write automated tests, participate in reviews and architecture discussions, and collaborate with Product, Customer Success, Data Engineering, and Platform teams. The role involves AWS, microservices, Kafka, databases, CI/CD, and production support.
Summary Generated by Built In
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!


Skills Required

  • 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
  • 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
  • Experience using AI coding assistants such as Claude Code, Cursor, 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.

  • 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.
  • 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.
  • 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.

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The Company
HQ: London
380 Employees
Year Founded: 2015

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.

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