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Backend Engineer - Java/Kotlin/AWS (m/f/d)

Adsquare

Berlin permanent

Posted: February 20, 2026

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Quick Summary

We seek candidates who not only drive ambition into action, but also possess resilience, adaptability, and a commitment to doing the right thing with fairness, integrity, and respect.

Job Description

Intro:
At Adsquare, our mission is driven by our core focus:
Passion – Solving complex challenges with great people, tech, and data.
Niche – Location Intelligence for Programmatic Advertisers.

Our core values are integral to everything we do:

• Drive: We turn ambition into action.

• Resilience: We adapt, persevere, and grow stronger.

• No BS: We value honesty, transparency, and clear communication.

• Humble: We choose modesty over vanity and let results speak for themselves.

• Moral Compass: We do the right thing with fairness, integrity, and respect.

We seek candidates who not only bring top-tier technical expertise but also embody these values in every aspect of their work.


Your Mission:
As a Mid / Senior Backend Engineer at Adsquare, you will help us develop our ever-growing products, by building distributed backend systems together with our highly skilled tech professionals. 

In this role you will: 

• Work in a self organized agile team with high level of autonomy and you will actively shape your teams culture.

• Design and build scalable solutions based on Spring Boot ecosystem.

• Design and build highly scalable solutions in AWS and provision them using Terraform.

• Successfully partner up with our Product and Ops teams to deliver the products required to fuel our customer’s success.


Your Profile:
• Excellent communication skills and willingness to share knowledge in the team.

• High proficiency in backend engineering, deep knowledge of Java or Kotlin and Spring Boot ecosystem.

• Experience in building cloud native backend solutions in AWS using Terraform IaC.

• Experience using in NoSQL and SQL databases, ideally in high-throughput scenarios.

• Passion for writing clean, well-maintainable and testable code.


Our Software Stack:
Java 11+ and Kotlin, Spring (Boot), AWS (S3, SNS/SQS, Lambda, Glue, Athena, Batch, Step Functions, etc), Terraform,  MongoDB, PostgreSQL, Kubernetes, Jira, GitLab, Gradle, Miro…


Locations:
Remote

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