Senior Software Engineer – DaaS / APIs / MCP

Posted 21 days ago

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

Is this posting real?

This role has been open: 21 days
Reposted: No
Salary listed: No
Ghost-job risk at Cognism: moderate
Hiring momentum: 27 roles opened in the last 90 days
Last confirmed on the employer's board: 2026-09-17

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 2026-09-17. PitchMeAI is not the employer.

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