Experienced FullStack Engineer - Payment & Basket (m/f/d)

MediaMarktSaturn Plattform Services GmbH

Barcelona

Hybrid

EUR 90,000 - 130,000

Full time

2 days ago

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Benefits offered by this job

Young environment and culture of co-創e

MediaMarkt website discount 10%

Flexible Pay program (health, tickets)

Flexible working hours with home/onsit

Two Barcelona offices

Training budget

Language classes

Birthday off

Cutting-edge tech stack

Job summary

MediaMarktSaturn Technology in Barcelona seeks a senior engineer to develop customer-centric features using React and Kotlin, while delivering robust backend services with Node.js, Express and Spring Boot. You will design APIs, integrate microservices, manage databases, and ensure cloud readiness with Google Cloud.

You will collaborate across teams to build scalable, secure web applications and drive best practices.

Qualifications

Experience with front-end technologies (HTML5, CSS3, JavaScript/TypeScript) and React.
5+ years of professional Kotlin experience.
Strong knowledge of backend techs: Node.js, Express, Spring Boot.
Extensive API design and microservices integration experience.
SQL (PostgreSQL, MySQL) and NoSQL (MongoDB) databases.
Version control with Git.
Cloud platforms, preferably Google Cloud.
CI/CD pipelines experience.
Familiarity with payment gateways like Stripe/PayPal.
Performance optimization for web apps.
OOP languages (Java) and GitOps (Terraform, Helm, Flux) and Kubernetes.

Responsibilities

Develop value-adding features for customers and follow Clean Code principles.
Embrace DevOps and own services from requirements to operation.
Make architectural decisions for high performance and maintainability during cloud migration.
Share knowledge and mentor team members.
Automate recurring support requests and improve code reliability.
Foster open, constructive discussions within the team.

Skills

React

Kotlin

Java

Node.js

Express

Spring Boot

API design

Microservices

SQL

PostgreSQL

MySQL

MongoDB

Git

Google Cloud

CI/CD

Terraform

Helm

Flux

Kubernetes

Grafana

Prometheus

Kibana

Design patterns

Testing strategies

Security best practices

Tools

Stripe

PayPal

Job description

Your Tasks

The Payment & Basket Platform team is a foundational team working on our core stack to improve developer experience in the area.

Develop value-adding features for our customers and leverage your technical expertise to create the best possible solutions following the Clean Code principles.
Embrace DevOps, taking responsibility for your team’s services from requirement analysis to operation.
Make architectural decisions with your team to ensure high performance, robustness, and maintainability of the application, especially during the transition from on-premise to the cloud.
Share your knowledge with your team colleagues, assist them, and contribute to the growth of the entire team.
Understand recurring support requests and implement automated solutions in the code.
Foster an open, honest, and constructive discussion culture within the team through your confident yet reflective manner.

Your Profile

Experience in front-end technologies such as HTML5, CSS3, JavaScript/TypeScript, and frameworks like React
5+ years of professional experience working with Kotlin
Strong knowledge of backend technologies and frameworks like Node.js, Express, Spring Boot
You have extensive experience in API design and know how to integrate microservices in a fault-tolerant and RESTful manner.
You have experience working with SQL (PostgreSQL, MySQL) and NoSQL (MongoDB) databases.
Knowledge of version control systems like Git.
Proficiency in cloud platforms, preferrably Google Cloud
Experience with continuous integration and continuous deployment (CI/CD) pipelines.
Understanding of payment gateways and integration (e.g., Stripe, PayPal).
Familiarity with performance optimization techniques for web applications.
In addition to solid knowledge of object-oriented programming languages (preferably Java), you have practical experience with GitOps (Terraform, Helm, Flux) and Kubernetes.
You are familiar with operating a business-critical service and know how to monitor it using tools like Grafana, Prometheus, and Kibana.
Understanding of microservices architecture and implementation.
You are knowledgeable about common design patterns and testing strategies, and you do not see quality and speed as contradictory.
Knowledge of security best practices for web applications.
Ability to adapt to rapidly changing technologies and methodologies.
Excellent English language skills, both written and spoken

About Us

MediaMarktSaturn Technology is working to make Europe's number-one consumer electronics retailer thetechnology leader in its industry. To this end, several hundred developers, UX designers and system architectsusing state-of-the-art technology work hand in hand with business owners in agile teams to develop customer-focused technology solutions for more than 6 million customers every day in 13 countries.

Within the Global Technology division, you are part of a strong cross-functional team of software engineers, data scientists and analytics experts to drive the development of our global product data management. Withinthe team and in close collaboration with the business product owner, you will design and develop data andanalytics solutions on our cloud-based technology platform to support our business in product datamanagement.

(*) Diversity and equal opportunities are important to us. Research shows that women and people from underrepresented groups are less likely to apply if they don't meet all the criteria. If you are interested in this position but your experience doesn't align perfectly with every requirement, we still encourage you to apply.

Additional Benefits

Young environment, where not everything is written in stone, and where you are expected to contribute and co-create the culture of the Tech Hub and international collaboration model
You’ll have a 10% discount on the entire MediaMarkt website, so you can treat yourself at a lower price whenever you want!
On top of your compensation package, you can request Flexible Pay "MediaFlex program" (a.e. Ticket Restaurant, Private Health Insurance with Adeslas, ...)
Flexible working time and possibility to combine home office / presential working. Intensive workday every Friday and during summer
The possibility to choose between 2 offices: The first one is the MediaMarkt Iberia HQ with a very attractive menu at a price. You’ll eat for less than €4! And the second office is located at Pier01, in Barceloneta, right in the center of Barcelona. Free coffee and free fruit once a week
There is a training budgetso you can continue developing the skills you need most to keep growing professionally and personally!
We offer language classes: English, Spanish, and German
On your birthday , you won't work! It's a day for you to enjoy without thinking about work
You’ll be working with the most cutting-edge technological stack of the moment