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

Raisin GmbH; Berlin; Vor Ort; EUR 70.000 - 90.000; Vollzeit

Zusammenfassung

A leading fintech company in Berlin seeks a Senior Java Developer to enhance payment services. You will collaborate with a top international team to ensure high-quality solutions and manage software projects effectively. The ideal candidate has over 8 years of experience in Java and Spring Boot, alongside strong communication and collaboration skills. Benefits include flexible working hours, employee development budget, and modern office environment.

Leistungen

Employee Development Budget of €2,000

Access to Babbel for language learning

Flexible working hours and 30 vacation days

Company pension scheme with 20% support

Subsidized Urban Sports Club membership

Relocation support for new employees

Qualifikationen

• 8+ years of development experience as a senior Java software developer.
• Up-to-date knowledge of the software development lifecycle in a Java technology landscape.
• Fluency in English.

Aufgaben

• Provide core services and high quality solutions for payment systems.
• Integrate externally developed components into existing application environments.
• Ensure high-quality standards through strong code reviews.

Kenntnisse

Java

Spring Boot

Critical thinking

Collaboration

Ausbildung

University degree in Computer Science, Engineering, or related fields

Tools

JUnit

Mockito

TestContainers

Jobbeschreibung

Your growth is our growth. Our success is your success.

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About Raisin

About Raisin Bank

About Raisin US

About Raisin UK

Team

The Customer Payment team is responsible for the integration with our Servicing Bank and processing all payments through it on the Raisin platform. Most importantly, account creations, payments execution and reconciliations, and transaction compliance are in the domain of this team.

The team is part of the “Customer Tribe”, which consists of 3 teams that collaborate closely on the mission to build and run state of the art Customer and Transaction Account experiences to grow Raisin at scale.

The Customer Payments team provides:

• the full lifecycle of the transaction accounts
• overview of the account balance and transaction history
• payment processing in real-time
• payments reconciliation
• platform abstractions of servicing banks

The team is a cross-functional team currently with BE and FE engineers.

The team owns the whole lifecycle from design, and development through maintenance of the services at runtime. This includes modern and legacy services, while the team works dedicated to replacing the legacy services.

Tech Stack

Your Responsibilities

For further development and expansion of our successful business, Raisin is looking for highly motivated, smart, and driven engineers to complement our team. As a Java developer, you will be working on our customer payment services together with an international team of top developers.

• Providing core services and high quality solutions for a large scale online platform and everything related to our payment systems
• Integrating externally developed components into existing application environments
• Together with the rest of the team, setting standards, establishing guidelines and sharing best practices in order to ensure continuous learning and development

Your daily tasks will be:

• You perform the tasks with great attention to quality, and support other engineers in your team to do the same.
• You do strong code reviews, ensuring not only best practices and business rules, but also performance, security, impact on other features or projects, and always with respectful and constructive communication.
• You work within your team to negotiate and document standards and practices in software development.
• You research and shape multiple alternative technical solutions when possible.
• You assume end to end ownership on the team projects\' delivery.
• You actively manage the technical documentation in your team.
• You actively manage the technical debt in your team.
• You participate in the hiring process with techfit interviews and tech challenge reviews.

Your Profile

• You have a university degree in Computer Science, Engineering, Information Systems, or related fields or equivalent practical experience.
• You bring at least 8+ years of development experience as a senior Java software developer (10+ years is preferred).
• You know how to manage software projects to a successful delivery in a collaborative fashion.
• You have up-to-date, in-depth knowledge of the software development lifecycle in a Java-technology landscape.
• You are comfortable with open code and architecture discussions.
• You bring experience with AWS Services, K8S, Event Driven architecture (Kafka and ActiveMQ), Springboot, SQL and NoSQL.
• Fluency in English

Must-Have:

• Strong experience with Java and Spring Boot
• Solid understanding and practical application of design patterns
• Hands-on experience with testing practices (unit, integration)
• Tools: JUnit, Mockito, TestContainers
• Excellent communication skills – ability to articulate challenges and solutions clearly
• Proven team player – collaborates well with others and supports shared goals

Nice-to-Have:

• Experience with event-driven architectures (e.g., Kafka)
• Experience with NoSQL databases (e.g., MongoDB or similar)
• Familiarity with reactive programming (e.g., Project Reactor, WebFlux)

Soft Skills:

• Critical thinking and problem-solving capabilities - able to analyze production issues and design robust solutions
• Proactiveness in supporting teammates and driving technical improvements

Our Benefits

Benefits der Raisin Bank

Join our mission, join our team - and grow with us!

At Raisin, we care about each other and it is one of our top priorities to foster an open and caring environment in which everyone feels welcome and comfortable. Our culture is strongly driven by our ambitious team, which connects more than 65 different nationalities.

You'll find us in our modern and open office in the trendy Kreuzberg district with a view of the Spree River, ideally connected to public transportation and surrounded by a variety of restaurants and shopping opportunities.

As part of our team, you will benefit from:

• Employee Development Budget of €2,000 and four full training days per year.
• Access to Babbel for continuous language learning.
• Flexible working hours, home office and 30 vacation days.
• A company pension scheme (Betriebliche Altersvorsorge), which we support with 20%.
• Enjoy more than 50+ different sports with Urban Sports Club: We subsidize your membership with more than €20 per month.
• Do you miss being in the office? The Deutschland Ticket gets you there, which we subsidize with €25 per month.
• Love cycling? With JobRad, lease the bike of your choice and enjoy tax savings, plus Raisin covers your monthly insurance costs.
• Hungry all the time? Snacks, daily fresh fruit as well as drinks provided at the office.
• You are moving from another country or city to join us? We may support your relocation.