Java Software Developer jobs in Germany

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Lightspeed is looking for a Senior Java Developer to join our team. As a Backend developer, you will support Lightspeed's Hospitality product group in our mission to expand our reach into new markets and countries while enhancing our advanced hospitality commerce platform.

For this role specifically, you will join our Third Party Ecosystem Squad. This team is dedicated to enabling integrations that make our flagship product a more complete and sticky solution, empowering partnerships to drive new business. By integrating third-party services, you\'ll ensure seamless interoperability and enhance our platform\'s overall functionality and value. Your work will be pivotal in building a robust and flexible ecosystem that meets diverse customer needs.

Above all, your work will change the way the world experiences hospitality!

• Developing and Optimizing Integrations: Focus on developing and optimizing third-party integrations that enhance the functionality and stickiness of the K-Series platform.
• Integration Design and Implementation: Design and implement integration solutions that expand our ecosystem, and ensure seamless interoperability with third-party services.
• API Development: Build robust and complete RESTful APIs, ensuring they are well-documented and adhere to standards such as OpenAPI.
• Clean Code and Documentation: Write clean, maintainable, and well-documented code to support the scalability and reliability of our platform.
• Cross-Functional Collaboration: Collaborate with Product Managers, Product Designers, and Platform Teams to achieve project objectives and enhance development practices.
• Performance Monitoring: Analyze system performance and implement monitoring solutions to ensure optimal operation and quick resolution of issues.
• Continuous Learning and Growth: Extend your skills by learning from and growing with the team, contributing to a culture of continuous improvement and innovation.

• Excellent communication skills in English.
• Outstanding Java knowledge with 5+ years of production usage experience.
• Expert knowledge of the Spring framework (Spring Boot, Spring MVC, Spring Security).
• Experience with both relational (SQL) and non-relational (NoSQL) databases.
• Knowledge of monitoring applications for performance and reliability.
• Experience with real-time messaging systems (Pub/Sub, Kafka, etc.).
• Solid understanding of computer science fundamentals, including object-oriented programming and design patterns.
• Experience with building robust and complete RESTful APIs.
• Familiarity with API documentation and standards such as OpenAPI.
• Commitment to clean code, maintainability, and systematic correctness.

• One additional backend language (Python, Go)
• Experience writing automated unit and functional tests
• Experience in Agile development environments.
• Understanding of networking fundamentals (HTTP, TCP, TLS, etc.).
• Proficiency with CI/CD systems, Docker, and Kubernetes.
• Experience with cloud environments like AWS or GCP.
• Computer Science degree or equivalent.

• You are a team player who likes to contribute to discussions and share your experience.
• You are self-motivated and can function effectively in a team environment with minimum supervision.
• You are always seeking improvement and progress.
• You are eager to make decisions and not afraid of making mistakes.

Come live the Lightspeed experience...

• Lots of autonomy, flexible work culture, and the possibility of remote work.
• Development of very high-traffic products used at a global scale.
• Exposure to modern and proven technology.
• Opportunity to learn and expand your skill set.
• Tons of growth opportunities in technical or people management roles.
• Excellent benefits & perks, including equity for all Lightspeeders.
• Opportunity to join a fast-paced, high-growth company.
• Become a valued part of the diverse and inclusive Lightspeed culture.

… and enjoy a range of benefits that’ll keep you happy and healthy:

• Lightspeed share scheme (we are all owners).
• Flexible working policy.
• Mental health online platform and counseling & coaching services.
• Health and wellness benefits.
• LinkedIn Learning license (learning is always ongoing).
• Volunteer day to be able to give back to society!

To all recruitment agencies: Lightspeed does not accept unsolicited agency resumes. If we have not directly engaged your company in writing to supply candidates for a specific vacancy, Lightspeed will not be responsible for any fees related to unsolicited resumes.

Lightspeed is a proud equal opportunity employer and we are committed tocreating an inclusive and barrier-free workplace. Lightspeed welcomes andencourages applications from people with disabilities. Accommodations areavailable on request for candidates taking part in all aspects of theselection process.

Obviously, this has to be mutually beneficial: we want you to step into a role you love, and we want to offer you a place you’re proud to come to every day. For a glimpse into our world check out our career page here.

Lightspeed is building communities through commerce, and we need people from all backgrounds and lived experiences to do that. We were founded in 2005, in Montreal’s gay village and our original members were all part of the LGBTQ+ community. The ethos of our business has been about inclusion from the very beginning, and we strive to provide a workplace where everyone belongs.

Who we are: Powering the businesses that are the backbone of the global economy, Lightspeed\'s one-stop commerce platform helps merchants innovate to simplify, scale, and provide exceptional customer experiences. Our cloud commerce solution transforms and unifies online and physical operations, multichannel sales, expansion to new locations, global payments, financial solutions, and connection to supplier networks.

Founded in Montréal, Canada in 2005, Lightspeed is dual-listed on the New York Stock Exchange (NYSE: LSPD) and Toronto Stock Exchange (TSX: LSPD). With teams across North America, Europe, and Asia Pacific, the company serves retail, hospitality, and golf businesses in over 100 countries.

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