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Fullstack Developer

Hybrid in Barcelona·Full-time·Added today (last checked 21 Oct)

Schwarz Digits

39 open roles

Overview

Work mode
Hybrid, Barcelona
Contract
Full-time
English
Required
Experience
3+ years
Benefits
Private health insurance

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Skills

Requirements

What we're looking for

  • Solid Experience with React Native & TypeScript: At least 3 - 4 years designing, developing, and maintaining production-grade mobile applications for iOS and Android.
  • Backend & API Development Expertise: Proven hands-on experience designing, building, and integrating RESTful APIs and backend services, preferably in C# /.NET.
  • Automated Testing Across the Stack: Practical experience with unit and integration testing frameworks (Jest, xUnit/NUnit).
  • Technical Pragmatism (KISS / YAGNI): Balanced judgment between clean, extensible architecture and delivering fast, iterative business value without over-engineering.
  • Assertive Technical Communication: Ability to articulate technical decisions with data, defend estimations constructively, and participate comfortably in technical debates
  • Nice-to-Have:
  • Experience with event-driven architectures and message brokers (NATS, Kafka, or RabbitMQ).
  • Experience with Docker, Kubernetes, or cloud deployment environments.
  • Knowledge of Infrastructure as Code (IaC) technologies.
  • Hands-on experience working with shared design systems and component libraries.
  • Familiarity with CI/CD pipelines (Azure DevOps, GitHub Actions, Fastlane).
  • Understanding of observability, tracing, and metric visualization (Prometheus, Grafana).
  • Practical familiarity with Xcode and Android Studio, a clear understanding of the native bridge / NitroModules, and native integration.

Pay & benefits

What you'll get

A modern, well-equipped workplace awaits you at Plaza Catalunya — right in the heart of Barcelona.
 

As part of our commitment to a positive and supportive work environment, our company offers a range of attractive additional benefits. These include restaurant vouchers, transportation benefits, health insurance, and fitness vouchers. Through our discount platform, you can also enjoy monthly discounts and benefits in a wide variety of categories, from services to clothing to accommodation.

Working closely with international departments, we develop customer-oriented solutions in flexible, small teams.

Our employees are very important to us. You will become part of an appreciative and open corporate culture with flat hierarchies.

We offer you diverse and exciting career opportunities in a dynamic work environment that stands for development and progress. 

We believe in giving our employees the flexibility they need to do their best work. Our most popular model is the hybrid model, which gives employees the option to work remotely up to 12 days per month. In-office time is focused on collaboration.

The role

What you'll do

  • End-to-End Feature Development: Own and deliver features from business logic and backend endpoints to responsive mobile user interfaces.
  • Mobile Architecture & Development: Build and evolve screens and user flows in React Native using TypeScript, ensuring clean architecture, and solid performance across devices.
  • API & Service Design: Design and build, and maintain RESTful APIs and decoupled services in.NET (C#), establishing reliable integration contracts and robust throughput.
  • Shift-Left Culture & Quality: Own code quality across both layers. Write and maintain unit, integration, and E2E tests, ensuring software reaches production with maximum stability and confidence.
  • Direct Collaboration with Discovery: Partner directly with our Product Designer and Product Data Analyst without relying on managers as bridges.
  • Continuous Delivery & Vertical Slicing: Break down complex epics into small, functional slices supported by feature flags, maintaining a steady, predictable delivery pace across parallel products.
  • Constructive Conflict & Code Reviews: Actively participate in code reviews across frontend and backend, providing constructive, rigorous, and empathetic technical feedback.

About Schwarz Digits

Schwarz Digits is the digital and technology arm of the Schwarz Group, one of the world's largest retail groups, which includes Lidl and Kaufland. The company provides cloud services (STACKIT), cybersecurity solutions, and digital products to internal and external clients, with a strong focus on data sovereignty and European cloud infrastructure. With its headquarters in Neckarsulm, Germany, Schwarz Digits operates across Europe and employs thousands of professionals in engineering, data, and security roles.

In Spain, Schwarz Digits has a significant presence, particularly in Barcelona, where it runs a technology hub and a Security Operations Center (SOC). The company is actively hiring international talent for roles in cloud engineering, cybersecurity, and software development, offering a multicultural work environment and the opportunity to work on large-scale European cloud and security projects. For international professionals, Schwarz Digits provides a chance to join a growing tech organization within a major corporate group, with competitive benefits and a focus on innovation.

Industry
Cloud and Cybersecurity
Founded
2021
Employees
1,000–5,000
Headquarters
Neckarsulm, Germany
In Spain
Barcelona

Good to know if you are moving

  • Schwarz Digits is part of the Schwarz Group, which owns Lidl and Kaufland, providing financial stability and a strong corporate backing.
  • The company operates a major cybersecurity and cloud hub in Barcelona, Spain, with many roles based there.
  • STACKIT is a European cloud platform designed to meet strict data privacy and sovereignty requirements, offering a unique value proposition.
  • The company supports hybrid work models and offers relocation support for international hires.
  • Working language is primarily English, making it accessible for international professionals.

In their own words

About the company & team

Schwarz Digits creates the technological foundation for digital sovereignty in Europe. As the IT and digital division of the Schwarz Group, we develop and manage the IT infrastructures for the retail divisions Lidl and Kaufland, as well as Schwarz Production and PreZero. At the same time, we operate as an independent provider in the external market to support companies across Europe in their digital transformation. We bundle our core services in the areas of Cloud, Cyber Security, Data & AI, Communication, and Workspace.

Join us and contribute to digital sovereignty in Europe. With us, you will work at the intersection of agility and security: You will benefit from fast decision-making processes, enjoy genuine creative freedom in your projects, and be able to build upon the stable foundation of the Schwarz Group. 

All open roles at Schwarz Digits

Location

Schwarz Digits · Barcelona

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