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Cognism

Senior Software Engineer – DaaS / APIs / MCP

Cognism · Poland

Posted about 2 months ago

or apply directly on Cognism's site. We never take the application ourselves.

Is this posting real?

This role has been open
57 days
Cognism's roles stay open a median of 72 days
Reposted
No
Salary listed
No
0% of Cognism's roles list one
Ghost-job risk at Cognism
high
16 stale, 0 reposted of 18 open
Hiring momentum
27 roles opened in the last 90 days
↑ up vs. the prior 90 days
Last confirmed on the employer's board
2026-10-23

Measured from postings appearing on and disappearing from Cognism's own greenhouse board since 2026-08-03. Full hiring picture for Cognism.

About this role

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.

Our read on this posting2.8out of 5
benefits
1/5
freshness
4/5
career value
4/5
role clarity
5/5
pay transparency
0/5

Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of Cognism as an employer.

What you need

  • 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

Worth weighing

  • No salary listed
  • Role involves significant ownership and impact on product direction
  • Position is part of a newly established engineering hub in Warsaw

Summarised from Cognism's posting. Read the full original.

Listed by Cognism on their greenhouse job board, last confirmed open on 2026-10-23. PitchMeAI is not the employer.

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