Senior Software Engineer

Team Internet

Senior Software Engineer at ad-tech company Team Internet, developing a new Commerce Media platform from scratch. Involved in all phases from design to deployment.

Posted 6/1/2026full-timeRemote • 🇵🇱 PolandSenior💰 PLN 21,000 - PLN 23,000 per monthWebsite

ATS Keywords

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Hard Skills

backend engineeringJVM ecosystemdistributed systemsunit testingintegration testingKotlinKafkaBig Data processingApache SparkAI coding tools

Soft Skills

communicationindependencecritical thinking

Tools & Technologies

AWScloud providerClaude CodeCopilotCursorMCP (Model Context Protocol)

Industry Keywords

greenfield projectscalable architecturereal-time shopping intent matchingcleanroom data integrationsprecise attributionnatural language campaign managementinnovative ad formatscommerceretail media

Tech Stack

Tools & technologies

ApacheAWSCloudDistributed SystemsKafkaKotlinSpark

About the role

Key responsibilities & impact

A greenfield project with the chance to shape its technical direction
Scalable, lightweight architecture for publishers, advertisers, and retailers
AI-driven real-time shopping intent matching based on page context
Cleanroom data integrations for precise attribution and targeting
Natural language campaign management via our MCP (Model Context Protocol) and AI agents
Innovative ad formats tailored for commerce and retail media

Requirements

What you’ll need

5+ years of backend engineering experience (JVM ecosystem)
Bring demonstrable experience in building distributed systems
Know your way around testing (unit, integration)
Comfortable diving into frontend work when necessary
Own your work end-to-end from design decisions to production
AWS or other major cloud provider experience
Daily use of AI coding tools (eg Claude Code, Copilot, Cursor) with critical thinking
Be able to communicate clearly and work independently
Fluent in Polish and English
Kotlin experience (or willingness to learn - it's our primary language)
Kafka or similar event streaming platforms
Big Data processing using Apache Spark

Benefits

Comp & perks

We are collaborative, fair, consciously inclusive, and flexible
We trust, value, and support our people to make the difference
We believe that diversity of thought and experience provides the platform for innovation and creativity
We invest in the development of our people to drive our ambitions forward
We offer a range of benefits (including your choice of tech) and a competitive package
We offer a great work environment in an internationally successful enterprise in the online services industry