Senior Software Engineer (Backend) for Retail Media / Ad Tech (m / f / d)

retailmediatools; Düsseldorf; Remote; EUR 60,000 - 100,000; Full time

Job summary

An innovative firm is seeking a Senior Software Engineer (Backend) to join their dynamic team. This role focuses on developing and optimizing backend services for a cutting-edge retail media platform, utilizing technologies like Go, Kafka, and Kubernetes. You'll have the opportunity to make a real impact by shaping the future of retail media infrastructure. With a remote-first culture, you can work from anywhere in Germany, enjoying a pragmatic and high-performance environment that values results over processes. If you're passionate about building scalable solutions and thrive in a tech-driven setting, this is the perfect opportunity for you.

Benefits

Remote Work Options

Cutting-Edge Technology

Low-Meeting Environment

High-Performance Culture

Qualifications

• 3+ Jahre Erfahrung in der Entwicklung von hochskalierbaren Softwarelösungen.
• Praktische Erfahrung mit Go, Python und verteilten Systemen.

Responsibilities

• Entwicklung und Optimierung von Backend-Diensten für unsere Plattform.
• Zusammenarbeit mit cross-funktionalen Teams zur Implementierung von Funktionen.

Skills

Go

Python

Kafka

PostgreSQL

BigQuery

Redis

Kubernetes

OpenAPI

Distributed Systems

Event-Driven Architectures

Tools

Docker

GCP

Job description

Senior Software Engineer (Backend) for Retail Media / Ad Tech (m / f / d)

Location : Berlin, Germany or Remote (in Germany only)

About retailmediatools

At retailmediatools, we are redefining retail media infrastructure. We provide a flexible, API-first SaaS platform that helps retailers launch and manage their own retail media use cases. Our platform supports various ad formats, including Sponsored Products, Display Banners, Video Ads, and even Coupons / Discounts, across e-commerce, mobile, and in-store touchpoints. On top, we provide a white label self-service user interface that enables a retailer to become a full advertising platform in no time.

According to IAB, retail media is the fastest-growing area in digital advertising, expanding nearly four times faster than the overall ad market in Europe. Our team brings together AdTech, MarTech, Retail, and Media experts to help retailers of all sizes unlock new revenue streams (from small eCommerce pure players to large multi-channel retail groups with thousands of stores).

Our mission is to empower retailers to maximize the value of their digital assets by giving them full control over their advertising solutions.

Why This Role Matters

As a Senior Software Engineer (Backend), you will play a key role in developing our product and shaping our company. At this stage, every line of code, every architectural decision, and every optimization has a direct impact on our success. For example, you will design and build reliable, scalable features that solve real-world customer needs. If you're autonomous, enjoy solving software challenges, and care about making a real impact, this role is for you.

What You’ll Do

• Own & develop backend services that are core to our platform.
• Design, build, and optimize services in Go (OpenAPI, Docker, Kubernetes).
• Ensure reliability & scalability of high-performance 24 / 7 availability systems.
• Work with cross-functional teams (engineers & product) to ship impactful features.
• Make pragmatic decisions on tools, tech, and trade-offs to keep things lean & cost-effective.
• Optimize data-heavy applications using Kafka, BigQuery, PostgreSQL, and Redis.

What You Bring

• 3+ years proven experience building high-scale, production-grade software, ideally in AdTech or Retail Media.
• Hands-on expertise with Go, Python, Kafka, PostgreSQL, BigQuery, Redis, Kubernetes, and OpenAPI.
• Experience with distributed systems, concurrent programming, and event-driven architectures.
• Familiarity with cloud platforms (preferably GCP) and DevOps best practices.
• Understanding of API design, security, and system integrations.
• Bias for action : you focus on solutions, not endless discussions.
• Ability to work independently : you don’t wait for instructions; you take ownership.
• Excellent communication skills : explain complex ideas in simple, clear English.
• While we operate remotely, you must live in Germany and be eligible to work here.

Bonus Points for Experience With :

• NoSQL and columnar storage.
• AdTech or Retail Media solutions.
• Retail or eCommerce use cases.

Why You’ll Love Working With Us

Real Impact & Ownership : Work on projects that shape the future of Retail Media.

Remote-First Culture : Work from anywhere in Germany or join us in Berlin - your choice!

Pragmatic, High-Performance Culture : We focus on results, not process for process’s sake.

Low-Meeting, Tech-Driven Environment : We value focused work over unnecessary meetings.

Cutting-Edge Tech Stack : Work with the latest technologies in AdTech & Retail Media.

Join Us!

We’re looking for innovative thinkers excited to build the future of Retail Media. If you’re passionate about reliable, scalable, and easy-to-use features, we’d love to hear from you!

• Apply now and become part of our journey!