Senior Software Engineer - Fullstack (m/f/d)

Ratepay GmbH; Berlin; Vor Ort; EUR 65.000 - 85.000; Vollzeit

Zusammenfassung

Ratepay GmbH is seeking a Senior Software Engineer to innovate secure and user-friendly payment solutions in the fast-paced e-commerce sector. You will develop robust systems and integrate APIs while mentoring teammates in an inclusive culture that values diversity and growth.

Qualifikationen

• 6+ years of hands-on experience in Java backend development.
• Solid frontend skills using Vue.js or other modern JavaScript frames.
• Comfortable working in agile teams.

Aufgaben

• Take ownership of design, development, and improvement of payment systems.
• Integrate internal and external APIs within a microservice architecture.
• Mentor junior engineers and foster a culture of learning.

Kenntnisse

Java backend development

Vue.js

Spring/Spring Boot

AWS

PostgreSQL

RESTful APIs

DevOps mindset

Tools

Docker

Git

Maven

Jobbeschreibung

Your Mission

Together, we build next-generation solutions for major online retailers and marketplaces – shaping the digital payment landscape of tomorrow.

At Ratepay, as a Senior Software Engineer (m/f/d), you’ll play a key role in creating secure, reliable, and user-friendly Buy Now, Pay Later payment solutions in one of the fastest-growing sectors of e-commerce. You'll work in a collaborative, agile environment, contributing to products that power the checkout experience for some of Germany’s biggest merchants.

Your Key Responsibilities:

• You take ownership of the design, development, operation and continuous improvement of our systems, ensuring high performance and stability.
• You integrate internal and external APIs within a modern microservice architecture, with scalability and maintainability in mind.
• You contribute actively to our agile software engineering process, collaborating with cross-functional teams including Product, Infrastructure, and Risk.
• You mentor and support junior engineers, sharing knowledge and fostering a culture of learning and growth.
• You bring in your ideas and technical experience to continuously challenge the status quo and drive innovation within the team.

That's What You Bring Along

• You have 6+ years of hands-on experience in Java backend development, with Kotlin being a plus.
• You possess solid frontend skills using Vue.js or another modern JavaScript framework.
• You are proficient in Spring/Spring Boot, Docker, Git, and Maven.
• You have experience building and deploying applications in cloud environments, preferably AWS.
• You have strong database knowledge, especially with PostgreSQL, and some familiarity with MongoDB or Redis is a plus.
• You understand RESTful APIs, OAuth2, event-driven architectures like Kafka, and microservices.
• Ideally, you are familiar with Kafka Streams and contract testing tools such as PACT.
• You are comfortable working in agile teams and embrace a DevOps mindset: “you build it, you run it.”
• Experience in fintech or risk-related systems would be an additional advantage.

That's How Working With Us Will Be

Equal Opportunities & Diversity

We value our diversity and welcome everyone to our team. Regardless of ethnic and social background, religious views, worldview, gender, sexual orientation, physical and mental limitations, age, marital status, educational background, and nationality. With over 200 employees and 40 different nationalities, we take our values seriously. These include; ownership, growth, integrity, collaboration, customer centricity and inclusion.