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← Cognism

Senior Software Engineer – DaaS / APIs / MCP

Cognism
Location
Poland
Posted
25 days ago
Department
Research and Development (R&D)
What they actually want (must-haves)
  • 5+ years of professional software engineering experience
  • Strong backend development skills using Java, Scala, Kotlin, C# or modern TypeScript/Node.js
  • Experience designing REST APIs and distributed microservices
  • Hands-on knowledge of AWS or another major cloud platform
  • Experience with SQL and NoSQL databases
  • Strong understanding of CI/CD, Git and modern software engineering practices
Nice to have
  • Kafka or event-driven architectures
  • Kubernetes and Docker
  • Infrastructure as Code
  • Experience building public APIs or developer platforms
  • Experience with AI coding assistants such as Claude Code, GitHub Copilot or Cursor
What the job really is

As a Senior Software Engineer at Cognism, you will be responsible for building and maintaining backend services that support the company's Data-as-a-Service (DaaS), APIs, and Model Context Protocol (MCP). Your role will involve designing production-ready software, collaborating with various teams, and contributing to architectural decisions while ensuring high quality and performance throughout the software lifecycle.

Things to weigh
  • No salary listed
  • Role involves significant ownership and impact on product direction
  • Position is part of a newly established engineering hub in Warsaw
Job score2.8/5
Benefits1/5
Freshness4/5
Career value4/5
Role clarity5/5
Pay transparency0/5

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