Backend engineer for payment systems

MediaMarkt España; Barcelona; Hybrid; EUR 60,000 - 90,000; Full time

Benefits offered by this job

MediaMarkt discount

Flexible pay program

Hybrid work

Office Barcelona Pier01

Coffee & fruit

Job summary

MediaMarktSaturn Technology ищет опытного backend-инженера для разработки функций и улучшения технологий в рамках европейской дистрибуции MediaMarkt. В работе — Kotlin, Node.js и микросервисная архитектура, интеграция с платежными шлюзами, облачные решения и CI/CD в кросс-функциональных командах.

Работа в Барселоне с гибридным режимом: офисы в центре города, возможность сочетать работу из дома, обучение и профессиональное развитие, а также поддержка языковых курсов и социального обеспечения.

Qualifications

• Опыт не менее 5 лет разработки на Kotlin.
• Глубокие знания Node.js, Express.
• Опыт проектирования API и интеграции микросервисов.
• Знания SQL и NoSQL (PostgreSQL, MongoDB).
• Опыт работы с Git и облачными платформами (Google Cloud).
• Опыт CI/CD, GitOps (Terraform, Helm, Flux) и Kubernetes.
• Опыт мониторинга (Grafana, Prometheus, Kibana).
• Знание паттернов проектирования и методик тестирования.
• Умение работать на английском языке на уровне, достаточном для технических коммуникаций.
• Плюсом будет Quarkus / Spring Boot.

Responsibilities

• Разработка функций для клиентов с учетом принципов Clean Code.
• Ответственность за сервисы команды в рамках DevOps.
• Принимаем архитектурные решения вместе с командой для высокой производительности и масштабируемости.
• Обеспечение перехода от локального к облачному решению.
• Делиться знаниями и помогать коллегам.
• Разработка автоматизированных решений для повторяющихся запросов поддержки.
• Содействие культуре открытой и конструктивной коммуникации в команде.

Skills

Kotlin

Node.js

Express

API design

Microservices

SQL

NoSQL

Git

Google Cloud

CI/CD

Terraform

Kubernetes

Grafana/Prometheus/Kibana

Design patterns

Testing strategies

Security best practices

English

Quarkus/Spring Boot

Tools

GitOps (Terraform, Helm, Flux)

Job description

Описание

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 architects using 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.

Задачи

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.

Требования

• 5+ years of professional experience working with Kotlin
• Strong knowledge of backend technologies and frameworks like Node.js, Express.
• 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.
• Будет плюсом: Nice to have: Quarkus / Spring boot

Условия

• 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 budget so 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.