Senior Engineer, Retail Media / AdTech Solutions (m/f/d) Cologne Posted on 28.10.2026

Redcare Pharmacy; Köln; Remote; EUR 90,000 - 120,000; Full time

Job summary

Redcare Pharmacy is recruiting a Senior Engineer (m/f/d) for its Retail Media Ad Solutions area. You will design and build high-performance, scalable AdTech solutions that power our growing Retail Media ecosystem.

You’ll work across the stack, from backend services to customer-facing interfaces, with a strong focus on clean architecture, data performance, and user-centric development. While this is a remote position based in Germany, occasional on-site collaboration at our Berlin or Cologne

Qualifications

• Proven experience designing and building high-performance, scalable AdTech solutions.
• Strong track record across the full stack from backend services to frontend interfaces.
• Experience with modern front-end stacks and cloud-based deployments.

Responsibilities

• Design and build end-to-end AdTech solutions for Retail Media.
• Collaborate with cross-functional teams to translate business needs into robust technical implementations.
• Ensure performance, reliability, and maintainability of the platform.

Skills

Backend development

Frontend development

AdTech

REST APIs

Tools

React

Next.js

TypeScript

Node.js

Koa.js

NestJS

MongoDB

Redis

BullMQ

RabbitMQ

Algolia

Docker

Kubernetes (GKE)

Google Cloud Platform

CircleCI

ArgoCD

Job description

About Redcare Pharmacy:

As Europe’s No.1 e-pharmacy Redcare Pharmacy is powered by passionate teams and cutting-edge innovation. We strive to create a healthy collaborative work environment where every employee feels valued and inspired to contribute to our vision “Until every human has their health”. If you’re seeking a career that offers purpose and aligns with your values join us and start your #Redcareer today.

About the role:

As aSenior Engineer (m/f/d)in theRetail Media Ad Solutions area, you will play a critical role in designing and building high-performance, scalable AdTech solutions that power our growing Retail Media ecosystem. You'll work across the stack, from backend services to customer-facing interfaces, with a strong focus on clean architecture, data performance, and user-centric development. Working closely with your cross-functional team, you’ll help turn complex business needs into robust, end-to-end technical solutions that deliver measurable impact.

About the tech stack:

React, Next.js, TypeScript, Node.js, Koa.js, NestJS, MongoDB, Redis, BullMQ, RabbitMQ, Algolia, Docker, Kubernetes (GKE), Google Cloud Platform, CircleCI, ArgoCD, and integrations with modern ad-serving platforms.

While this is a remote position based in Germany, it may require occasional on-site collaboration at our offices in Berlin or Cologne, depending on business and team requirements.