Backend Software Developer (m/f/d)

That's The Job Development and further development of the Java backendClose collaboration with other development teams and product owners to implement featuresOptimization of the performance, stability, and security of our applicationsImplementation of interfaces (REST) and integration of external servicesWriting clean, maintainable code with a strong focus on unit testingWorking with SQL databases to design, optimize, and maintain data-driven featuresCode reviews, testing, and continuous improvement of our development processes That's You Several years of professional experience in Java developmentExcellent understanding of design patternsConfident in testing (unit) and agile development methods (Scrum)Solid experience with SQL databases (design, queries, optimization), Independent, structured, and goal-oriented teamworkAbstract thinking and understanding of complex relationshipsFluent written and spoken English; German is an advantageThat's What We OfferAt Flexoptix, we're more than just a workplace – we're a community dedicated to fostering growth, well-being, and success. When you join our team, you become part of a supportive environment where your contributions are valued, and your potential is nurtured. Here's why you'll love being part of our team:An attractive package: In addition to the gratifying salary, we offer a robust company pension plan to help you build a secure financial future and a Company Health Insurance Plan with a coverage that goes beyond the basics, providing you with additional benefits to support your health journeyAccess to Top-notch IT and Office Equipment: Operating system and hardware of your choice, additional tech equipment that you need, screens, you name it — we want to enable you to do your best workStay Active and Healthy with our Gym partner: Maintain your well-being with our health and sports offerFeeling hungry? We've got you covered! Fuel your workday with a delicious lunch from our diverse menu selection. Enjoy fresh fruit and cereal anytime you need a snack. Plus, you'll find chocolates in every corner of our office to satisfy your sweet toothPersonal Development: Expand your skills and knowledge through workshops, conferences, language courses, advanced training, and webinarsConvenient Location and Transportation Options: Our office is conveniently located in the woods and easily accessible by public transport, car, or bicycle, making your commute a breeze and we've got you covered with covered bicycle parking and warm showers available onsiteEnjoy 30 days of annual vacation, giving you ample time to relax, recharge, and explore new experiencesStay Active and Eco-Friendly with Bike Leasing: Stay active with our bike leasing program, offering a convenient and sportive commuting optionHybrid/Onsite Working: We offer flexible hybrid/onsite working arrangements allowing you to work remotely and dedicating three days to onsiteDiscounted Public Transport Tickets: Save money on public transportation with our discounted public transport tickets, making you wanting to travel moreMake an impact! Work in an innovative, deep tech product that adds value to the telecommunication world! Become a crucial part of something new, big and exciting where you can truly make an impact!That's How We ConnectSocial mediaWould you like to find out more about Flexoptix as an employer? Then take a look at LinkedIn, Kununu, Instagram or Facebook.Flexoptix is an equal opportunity employer and values diversity. We do not discriminate based on race, religion, colour, national origin, gender, sexual orientation, age, marital status or disability status.About UsFlexoptix is a telecommunications company based in Darmstadt. Since 2008, Flexoptix has been successfully developing and marketing solutions for network transceivers under the motto "Less Bullshit more Engineering". We offer a high-end range of products, services and applications for transceivers tailored to meet the specific needs of our customers. Known for our innovation with many industry-first solutions, Flexoptix continually invests in research and development to stay ahead of industry trends. At Flexoptix, we don't just provide solutions—we engineer success.Our Flexoptix team is international and welcoming with around 100 colleagues from over 15 countries, we cherish and foster different viewpoints and experiences each person brings.