Senior Software Engineer - Backend (all genders)

Zalando; Bayern; Vor Ort; EUR 65.000 - 90.000; Vollzeit

Benefits dieser Stelle

Employee shares program

40% off fashion and beauty products

2 paid volunteering days a year

Hybrid working model within Germany or

UK

Work from abroad up to 30 days a year

27 days of vacation for full-time

Relocation assistance available

Family services and wellbeing options

Mental health support and coaching

Developer training and peer reviews

Zusammenfassung

Tradebyte, part of the Zalando Group, is seeking talented backend engineers to build resilient services and high-throughput integrations powering Europe’s top e-commerce brands. You’ll develop scalable APIs with JVM languages or Python, collaborate across teams, and own features end-to-end.

We value modern engineering practices, testing rigor, and clear English communication. Hybrid work within Germany or the UK is available, with occasional office days for moments that matter.

Qualifikationen

• Experience designing scalable backend services.
• Proficiency in JVM or Python ecosystems.
• Experience with REST APIs, databases, and testing.

Aufgaben

• Design & Develop: Architect and build scalable backend services and platform apps using modern JVM languages (Kotlin/Java, JDK 21+) or Python (3.11+).
• Collaborate across Product, Frontend Engineering, and Platform teams to translate business challenges into robust APIs and data flows.
• Problem Solve: Improve system resilience, performance, and developer experience through pragmatic research and testing.
• Own Your Work: From concept to production with thorough unit, component, and E2E testing for maintainability.
• Innovate & Grow: Evolve service architecture and share technical insights as the platform expands.

Kenntnisse

Java/Kotlin

Python

REST API design

OpenAPI

Testing (JUnit/pytest)

English communication

Tools

Spring Boot

Django/Flask

PostgreSQL

MySQL

MongoDB

Jobbeschreibung

ABOUT TRADEBYTE

At Tradebyte, we work with the biggest players in e-commerce - from trendsetting fashion brands to major online retailers. Our goal is to create a workplace where everyone feels valued, supported, and empowered.

We offer flexible work schedules, professional development opportunities, and a real commitment to work-life balance. We embrace diverse perspectives and ensure that every voice is heard and respected, because you’re unique and that matters to us.

As we continue to grow, we’re looking for new colleagues who share our passion. Love what you do - do what you love. Join Tradebyte, an independent company within the Zalando Group!

THE ROLE AND THE TEAM

You’ll build resilient backend services, core platform applications, and high-throughput integrations that power Europe’s top e-commerce brands at scale. We focus on scalable APIs and seamless data transfer, giving you the technical autonomy to solve complex engineering challenges and directly enhance our platform ecosystem. If you thrive on high-impact systems and modern engineering practices, this is where you’ll make a real impact.

WHAT WE’D LOVE YOU TO DO (AND LOVE DOING)

• Design & Develop: Architect and build clean, scalable backend services and platform apps using modern JVM languages (Kotlin/Java, JDK 21+) or Python (3.11+).

• Collaborate: Partner across Product, Frontend Engineering, and Platform teams to translate complex business challenges into robust APIs, integrations, and data flows.

• Problem Solve: Collaboratively address technical challenges, using pragmatism and research to continuously improve system resilience, performance, and developer experience.

• Own Your Work: Take full ownership of features from concept to production, backing your code with comprehensive unit, component, and E2E testing to ensure maintainability.

• Innovate & Grow: Evolve service architecture, help define system boundaries, and share technical insights as our platform expands.

WE’D LOVE TO MEET YOU IF

• A strong foundation or eagerness to deepen expertise in modern JVM languages (Kotlin/Java, JDK 21+) or Python (3.11+), using frameworks like Spring Boot or Django/Flask.

• Passion for REST API design and OpenAPI, alongside experience with or interest in relational or NoSQL databases (e.g., PostgreSQL, MySQL, DynamoDB, MongoDB).

• Commitment to software quality, with comfort in writing reliable code backed by testing frameworks like JUnit 5, pytest, or E2E automation tools.

• Proactive, solution-oriented mindset paired with clear communication skills in English, both written and verbal.

OUR OFFER

Tradebyte provides a range of benefits, here’s an overview of what you can expect. Ask your Talent Acquisition Partner to learn more about what we offer.

• Employee shares program

• 40% off fashion and beauty products sold and shipped by Zalando, 30% off Lounge by Zalando, discounts from external partners

• 2 paid volunteering days a year

• Hybrid working model - work where it works for you within Germany or the UK, with occasional office attendance required for moments that matter.

• Work from abroad for up to 30 working days a year

• 27 days of vacation a year to start for full-time employees

• Relocation assistance available (subject to prior agreement)

• Family services, including counseling and support

• Health and wellbeing options (including Wellhub, formerly Gympass)

• Mental health support and coaching available

• Drive your development with our training offerings and biannual peer-to-peer review