Senior Java Developer

Senior Java Developer (m/f/d)

freshcells systems engineering GmbH is a software service provider based in Düsseldorf with a dynamic team of over 50 creative experts from various fields.

At freshcells, authenticity, individual talent development, and open communication are at the core of everything we do. We rely on respect, trust, and responsibility. As an innovation-driven company, we invest in new ideas. We know that the best results come from teamwork. We make mistakes – but we learn from them. We are open-minded and bold when it comes to exploring new paths.

Our DNA is centered around creating sustainable solutions with a strong commitment to excellence. We thoroughly analyze our projects in advance. That’s why we deliver what we promise. Our consulting is honest and customer-oriented.

Join us on our exciting journey in perhaps the most significant and forward-looking field of all – software development – as a Senior Java Developer (f/m/d) – Software Development (full-time)!

If you're excited by a diverse range of projects, want to continuously grow, and enjoy working independently and with a strong sense of responsibility, get in touch with us: recruiting@freshcells.de. We’re looking forward to hearing from you!

What do I need?

The freshcells spirit

We always remain ourselves.
We promote individual talents.
We are creative nerds from a wide variety of fields.
We do not hide.
We communicate openly, honestly & fairly.
We build on respect, trust & responsibility.
We are innovation driven and willing to invest in ideas.
We know that the best results can only be achieved as a team.
We make mistakes, but we learn from them.
We are open, we are courageous.

Flexible home office days
Flex-time for early risers and night owls
A dog-friendly working environment
A secure and long-term job
Company pension plan with employer subsidy possible
Regular exchange, feedbacks, team meetings & retrospectives
Monthly Company Breakfast
Room for own ideas and personal development
Digital training courses, available to every employee at his or her own discretion
Subsidy for Urban Sports Club membership
Subsidy for Deutschlandticket
Bike leasing via JobRad
Support with relocating processes
Free German courses for newcomers

Your Responsibilities

Design and improve our high-performance Java web applications with industry-standard frameworks
Conceptual design and implementation of new features for sophisticated software solutions in cooperation with the project management, design, and development teams
Writing automated software tests and setup deployments for web applications
Profiling and discovering performance bottlenecks in our Java applications

Your Qualifications

Several years of hands-on experience in Software Engineering
Strong experience with Java, including versions 11 and 17
Experience with the Spring (Boot) framework
Ability to write and optimize SQL queries
Experience in Software Integration Development (SOAP/REST)
You are comfortable with microservices architectures, API-based and event-based communication
Experience with build and dependency management tools such as Maven and Gradle
Familiarity with reactive programming principles and hands-on experience using Project Reactor
Experience in agile development in a team and an organized and result-oriented work ethic for sustainable and scalable web systems
Good knowledge of how to design distributed systems
Good knowledge of the English language

Nice to have

Experience in NoSQL
Previous experience with lucene/solr/elasticsearch
Experience with Docker and ideally, experience Kubernetes and Helm
Experience with Apache Ignite and Redis
Continuous Integration and Deployment with Jenkins (or others)
Experience with GraphQL is a plus
Experience with Reactive programming (Spring WebFlux)

Take the initiative

Please note

Applications sent by post cannot be taken into account during the application process. For this reason, application portfolios will also not be returned.

Get in touch now

Senior Java Developer