Senior Backend Developer (m/f/d)

Gini; Germany (OH); On-site; USD 102,786 - 137,048; Full time

Benefits offered by this job

Learning budget €2,500/year

30 days vacation + sabbatical

Meal allowance €3 per working day

JobRad leasing

Mobile working within Germany

Workation within EU/UK/Switzerland

Job summary

Gini is a FinTech leader in Germany, powering back-end services for banking, e‑commerce and insurance with a focus on reliability and scalability. As a Senior Backend Engineer, you will shape technical direction, build robust APIs, and collaborate across Product and Engineering teams to deliver impact for millions of users.

You will work with Java, Spring Boot, Docker, and Kubernetes in a hybrid setup based around Munich, with flexible hours and a strong emphasis on maintainability and security.

Qualifications

• 5+ years designing, building, and operating backend systems.
• Excellent knowledge of Java, JVM, and Spring Boot.
• Experience designing RESTful APIs and distributed microservice architectures.
• Solid experience with SQL databases; Cassandra/Elasticsearch a plus.
• Docker and Kubernetes in production environments.

Responsibilities

• Design, develop, maintain, and operate backend services powering our products.
• Build and extend APIs used by partners in banking and insurance.
• Improve systems to be more reliable, scalable, and maintainable.
• Collaborate with Product, Mobile, AI and other Engineering teams on new features.

Skills

5+ years backend experience

Java & Spring Boot

RESTful APIs & microservices

OAuth2 & Spring Security

Asynchronous messaging (AMQP)

Code maintainability & reliability

English communication

Tools

Docker

Kubernetes

SQL databases

Cassandra/Elasticsearch

Job description

Founded in 2011 Gini is a well-established award-winning FinTech company disrupting the banking, e-commerce, and insurance sector. Our most well-known product is our Gini photo payment software assistant, which is integrated into over 90% of German banking apps. With this and other products, we aim to improve everyone's quality of life by simplifying tedious tasks through automation. What's special about us: We place a high value on autonomy, which we integrate into our daily work life with flat hierarchies. We have four core values that are essential to our collaboration at Gini: Excellence, Opportunities rather than Risks, Love, and Commitment & Responsibility. You can find more details about our values and the way we work together at Gini in ourhandbook .

We are very proud to have received several awards in recent years, including "Top Employer 2020" from Focus, "Financial Product of the Year 2022," and "Top Company" from kununu for 2023, 2024, and 2025.

As a Senior Backend Engineer (m/f/d), you'll take ownership of the backend services behind our products and help shape their continuous evolution. You'll balance building new functionality with improving existing systems, always keeping reliability, scalability, and maintainability in mind. Working closely with Product and fellow engineers, you'll contribute to solutions that make a real impact for millions of users.

Your playing field with Gini

• You design, develop, maintain, and operate backend services that power our products.
• You build and extend APIs used by our banking and insurance partners.
• You improve existing systems by making them more reliable, scalable, and maintainable.
• You collaborate closely with Product, Mobile, AI, and other Engineering teams to deliver new features and technical improvements.
• You contribute to architecture discussions and help shape the long-term evolution of our backend landscape.
• You automate development, testing, and deployment processes through modern CI/CD pipelines.
• You monitor, troubleshoot, and continuously improve the stability and performance of our services.
• You perform code reviews, share your expertise, and support engineering best practices across the team.
• You estimate implementation effort and contribute to technical planning and solution design.
• You stay up to date with new technologies and bring pragmatic ideas to continuously improve our systems.

Skills to be successful

• You have 5+ years of professional experience designing, building, and operating backend systems.
• You have excellent knowledge of Java, the JVM ecosystem, and Spring Boot.
• You have experience designing and building RESTful APIs and distributed microservice architectures.
• You have solid experience working with SQL databases; experience with Cassandra and/or Elasticsearch is a plus.
• You have worked with Docker and Kubernetes in production environments.
• You have a good understanding of application security, OAuth2, and Spring Security.
• You have experience with asynchronous communication and messaging technologies such as AMQP (a plus).
• You have a pragmatic engineering mindset with a strong focus on maintainability, reliability, and clean code.
• You enjoy collaborating with others, sharing knowledge, and contributing to technical discussions.
• You live in or around Munich and can join us in our office about once a week.
• You communicate confidently in English.
• Flexible working: Mobile working within Germany or from our bright Munich office with two roof terraces
• Workation: Working from abroad? No problem - workation within the EU, the UK, and Switzerland is possible
• Flexible working hours: Shape your workday in a way that fits your rhythm best
• Growth & development: €2,500 net annual learning budget, plus 5 additional days off for your personal development and a monthly learning day
• Vacation & Sabbatical: 30 days of paid vacation and the opportunity to take a sabbatical
• Financial extras: €50 net per month on top of your salary or €50 Wellpass subsidy
• Food: €3 meal allowance per working day in our high-quality employee restaurant
• Team & culture: Regular team and company events and an open, feedback-driven culture with real team spirit
• Mobility: Free underground parking and JobRad leasing with attractive tax benefits
• Equipment: State-of-the-art Apple devices and ergonomic office equipment for productive work
• Lots of different team events: we know how important team cohesion is, so we regularly organize team and company-wide events and activities
• Shared feedback culture with purpose : a feedback-driven culture full of purpose and community. Click on kununu and Glassdoor to find out what our employees and candidates are saying about Gini

Sounds like the right challenge for you?