Full Stack Engineer (all genders)

Eurowings Digital GmbH; Köln; Hybrid; EUR 63,000 - 77,000; Full time

Benefits offered by this job

Hybrid work arrangement

Job summary

Eurowings Digital GmbH in Cologne, Germany, is seeking a Full Stack Engineer to build scalable, data-driven enterprise apps within the Ops Digital Heartbeat initiative. You will own end-to-end features across backend and frontend, using Java (Spring Boot) and Vue.js, with cloud-native architecture and microservices.

You will collaborate with Product, Design and Engineering teams, focus on performance, security and reliability, and mentor peers. Salary starts at €70,000 and depends on experience.

Qualifications

• 5+ years of experience in software engineering.
• Strong expertise in Java and Spring / Spring Boot.
• Experience building microservices and REST APIs at scale.
• Solid frontend experience with React or Vue; JS/TS, HTML, CSS.
• Cloud platforms (Azure, AWS, or GCP); Docker and Kubernetes; CI/CD
• Testing strategies: unit, integration, end-to-end.
• Knowledge of performance, security, scalability.
• Cross-functional teamwork and stakeholder management.
• Strong communication.

Responsibilities

• Integrating optimization engines and Generative AI into production-grade enterprise applications.
• Design and implement end-to-end features across backend and frontend.
• Build and evolve scalable microservices and APIs using Java (Spring Boot).
• Develop high-quality frontend applications using Vue.js.
• Ensure high code quality through testing, code reviews, and engineering best practices.
• Collaborate closely with Product, Design, and Engineering teams.
• Optimize systems for performance, scalability, and reliability.
• Support and mentor other engineers through technical guidance and feedback.

Skills

Java / Spring Boot

REST APIs

Frontend (Vue/React)

CI/CD / DevOps

Testing strategies

Cross-functional collaboration

Communication

Tools

Vue.js

React

Docker

Kubernetes

Azure

AWS

GCP

Job description

Job overview

As a Full Stack Engineer, you will build and scale critical digital products across the full stack, mainly within the Ops Digital Heartbeat initiative. This program focuses on creating scalable, data-driven solutions for operational processes. You will own complex systems, shape architecture, and work closely with engineering and domain teams to deliver modern cloud-native solutions. This includes integrating data pipelines, enabling analytics, and driving automation to improve decision-making and execution. The work is delivered iteratively, with a strong focus on modular design and continuous optimization of operational systems.

Job Title

Full Stack Engineer

What you will do

• Integrating mathematical optimization engines and Generative AI capabilities into production-grade enterprise applications (key part of this role)
• Design and implement end-to-end features across backend and frontend
• Build and evolve scalable microservices and APIs using Java (Spring Boot)
• Develop high-quality frontend applications using Vue.js
• Ensure high code quality through testing, code reviews, and engineering best practices
• Collaborate closely with Product, Design, and Engineering teams
• Optimize systems for performance, scalability, and reliability
• Support and mentor other engineers through technical guidance and feedback

What you will need

• 5+ years of experience in software engineering
• Strong expertise in Java and Spring / Spring Boot
• Experience building microservices and REST APIs at scale
• Solid frontend experience with React or Vue. Strong knowledge of JavaScript / TypeScript, HTML, CSS
• Platform & Engineering Practices: Experience with cloud platforms (Azure, AWS, or GCP); Strong understanding of containerization (Docker) and Kubernetes; Experience with CI/CD and DevOps collaboration
• Strong knowledge of testing strategies (unit, integration, end-to-end)
• Understanding of performance, security, and scalability principles
• Collaboration: Proven experience working in cross-functional teams
• Strong communication and stakeholder management skills

Nice to have

• Exposure to or experience with Operations Research (OR) concepts and ecosystems: MILP/LP modeling, constraint programming, scheduling, routing, forecasting
• Experience with agent frameworks and protocols (e.g., LangGraph, Pydantic AI, Model Context Protocol / MCP)

What you will bring

• Strong expertise in system design and clean architecture principles
• Ability to drive technical decisions and influence team direction
• Ownership mindset with end-to-end accountability
• Pragmatic decision-making balancing speed, quality, and business needs
• Ability to mentor and elevate team engineering standards
• Proactive communication and a mindset of continuous improvement.

We believe in fair and transparent pay. For this position, the annual salary starts at a minimum of €70,000 and depends on your qualifications, experience, and level of responsibility.

Inclusivity

• All genders

Workplace type

• Hybrid