Senior Software Developer (Java) - Users & Roles (All Genders)

Hello and welcome! 👋Are you ready to take on an exciting career challenge or just browsing your options? You’re in the right place!We are on the hunt for a skilled Senior Backend Developer to become part of our dynamic team. In this position, you will play a pivotal role in advancing our Hospitality product group, supporting our ambition to penetrate new ma…

Become a part of Voyfai, an innovative Series A startup revolutionizing logistics and technology throughout Europe.Based in the vibrant city of Berlin, we are at the forefront of a network of companies operating across various European markets.This is an exceptional chance to take the reins from the very beginning, make a significant impact, and thrive in a fast-paced, dynamic setting. Whether you're refining processes, crafting strategies, or spearheading initiatives, your efforts will directly affect the success of Voyfai and the enterprises we assist. If you have a passion for building innovative solutions from the ground up and want to be part of a rapidly growing company, we are eager to hear from you.Your RoleWe are on the lookout for a talented Senior Software Engineer (m/f/d) to join us in constructing the essential infrastructure of our logistics platform. In this pivotal role, you will collaborate closely with AI engineers and product stakeholders to define system architecture, integrate with transport management systems, and develop customer-facing features that utilize large language models. Your contributions will play a vital role in shaping our engineering practices and establishing a scalable foundation for future product development over the next year.Key Responsibilities:Design and implement scalable software solutions with a focus on robust system architecture and clean coding practices.Create and enhance integrations with transport management systems and third-party logistics platforms.Partner with AI engineers to deliver customer-centric features powered by advanced language models.Enhance system reliability, maintainability, and scalability by managing technical debt and evolving the technology stack.Utilize PostgreSQL to ensure data consistency, integrity, and performance.Employ cloud platforms such as AWS or GCP to facilitate infrastructure and deployment.Contribute to DevOps and CI/CD practices to enhance release speed and operational stability.Occasionally engage with customers to translate their requirements into product and engineering solutions.What You Bring:A minimum of 5 years of professional software engineering experience, demonstrating strong backend architecture skills and proficiency across the full stack.Proficient in JavaScript or TypeScript in both backend and frontend contexts.Experience with SQL databases, particularly PostgreSQL.Familiarity with cloud platforms such as AWS or GCP.Strong understanding of DevOps and CI/CD methodologies.Excellent problem-solving skills and a proactive approach to challenges.

At Databricks, we are dedicated to empowering data teams to tackle the most pressing challenges of our time — from realizing the next mode of transportation to accelerating groundbreaking medical advancements. We achieve this by developing and operating the world’s most advanced data and AI infrastructure platform, enabling our customers to leverage deep data insights to enhance their businesses. Founded by engineers with a passion for customer satisfaction, we eagerly embrace every opportunity to address technical challenges, from crafting next-generation UI/UX for data interfacing to scaling our services and infrastructure across millions of virtual machines. And this is just the beginning.Our engineering teams create highly technical products that meet significant real-world needs. We operate one of the largest scale software platforms, featuring millions of virtual machines that generate terabytes of logs and process exabytes of data daily. At this scale, we frequently encounter cloud hardware, network, and operating system faults, and our software must effectively shield our customers from these challenges.Unity Catalog serves as our platform's native, unified, and open governance solution for data and AI. It eliminates data silos, simplifies governance, and accelerates insights at scale. We are on the lookout for a Senior Staff Software Engineer to lead the Unity Catalog Runtime Enforcement efforts. In this role, you will help build and fortify the runtime enforcement layer for Unity Catalog, ensuring secure, consistent authorization and data access across Databricks compute engines and clouds. This initiative aims to minimize incidents and simplify customer decisions by standardizing enforcement semantics.

Join PPRO in our mission to streamline access to local payment methods, empowering businesses worldwide to thrive by offering their customers preferred payment solutions. As a trusted partner to renowned organizations like Ant Group, PayPal, and Stripe, we help our clients tap into new markets and enhance customer connectivity, driving growth and innovation in global commerce.Our diverse global team, representing over 50 nationalities across 10+ international locations, is united in our pursuit of excellence. We are committed to continuous innovation, guided by our core values: #chooseaction, #beopen, #thinkcustomer, #gofurther, and #wintogether.Role Overview:As a Senior Software Engineer at PPRO, you will play a pivotal role in shaping our products and engineering culture. You'll tackle complex technical challenges, contribute to architectural decisions, mentor fellow engineers, and collaborate closely on code development. Your insights and expertise will significantly influence our team's success and the overall company direction.

At Enpal, our vision is to empower every household with sustainable energy solutions. We strive to have a solar system on every roof, a storage unit in every home, and an electric vehicle in every garage. Our comprehensive approach to decentralized energy encompasses solar systems, battery storage, wall boxes, smart meters, and heat pumps. Central to this mission is our innovative AI-powered platform, Enpal.One+, which seamlessly connects thousands of systems while optimizing electricity procurement and feed-in on the energy market.Are you ready to create solutions that do more than just promise change? Join us at Enpal, where your contributions will deliver clean, renewable electricity and significantly enhance the quality of life for countless households.Your RoleAs a Senior Software Engineer - C# (f/m/x), you will tackle intricate challenges in delivering effective renewable energy solutions. Your responsibilities will range from digitalizing the planning processes for solar panel installations through engaging frontend applications to developing APIs that support real-time energy data management and scaling cloud infrastructure in Azure.We promote an agile environment that fosters rapid personal and professional growth. Our commitment to making sustainable solar energy accessible to all can only be achieved by uniting our customer-centric approach with collaborative efforts between software development, product management, and innovative, experiment-driven business development.Join us to enhance your skills, participate in the energy revolution, and work together towards the sustainable change we aspire to see in the world!Software Development: We prioritize delivering incremental value with each iteration and celebrate improvements that enhance user experiences and contribute to our climate goals.Developer Satisfaction: We aim to enhance stability and automate processes, minimizing the need for late-night deployments and repetitive manual regression tests.Continuous Learning: Whether you're an expert in Kafka or just starting with Azure Bicep, we welcome your knowledge and are committed to supporting your growth through continuous learning opportunities.Architectural Design: You will have the opportunity to work on architecture and technical design, ensuring our solutions are robust and scalable.

At Enpal, we're on a mission to revolutionize how energy is consumed. Our vision is to provide solar systems on every rooftop, battery storage in every home, and electric vehicles in every garage. Our comprehensive solutions encompass everything from solar installations to smart meters and heat pumps, all powered by our advanced AI platform, Enpal.One+. This innovative platform seamlessly connects a multitude of systems, optimizing energy procurement and feed-in across the market.Are you passionate about creating impactful solutions that enhance the quality of life for thousands of households? Your contributions at Enpal will not only help deliver clean energy but also foster a significant shift in energy usage for the future.Your RoleAs a Senior Software Engineer - Node.js (f/m/x), you will tackle intricate challenges in the realm of renewable energy solutions. Your responsibilities will range from digitizing solar panel installation planning with engaging frontend applications to developing APIs that provide real-time energy data. Additionally, you will be instrumental in scaling and managing our cloud infrastructure on Azure.We pride ourselves on our agility and commitment to professional development. Our vision of making sustainable solar energy accessible to everyone thrives on a customer-centric approach, fostering collaboration between software development, product management, and innovative business strategies.Join us in enhancing your professional journey, participating in the energy transformation, and taking shared responsibility for the sustainable future we aspire to create! We eagerly await your application.At Enpal, you will:Build Software: We prioritize delivering incremental value in every iteration, celebrating improvements that enhance user experience and help achieve our climate objectives.Enhance Developer Happiness: We aim to automate processes, reducing manual testing and deployment times, thereby improving the overall stability of our solutions.Grow & Learn: Whether you're an expert in Kafka or new to Azure Bicep, we are committed to facilitating your growth through shared knowledge and resources.Engage in Architecture & Design: Collaborate with cross-functional teams to design scalable and robust software architectures.

Why Join Scout24?Scout24 is the proud home of ImmoScout24, Germany's leading real estate platform. For over 25 years, we have been transforming the real estate landscape in Germany and Austria. Our mission is to create a digital ecosystem that connects homeowners, seekers, and real estate agents, making the process of finding the perfect home seamless and efficient. Your career is as significant as finding the right property! At #WorkingatScout24, you will join a vibrant, inclusive team of around 1,100 colleagues from 58 different nationalities. We celebrate diversity and individuality, fostering a culture of openness and authenticity that promotes personal growth. We view mistakes as opportunities for innovation and improvement, and together we strive for success while treating one another with respect as #oneteam.If this resonates with you, we would be thrilled to welcome you aboard! Even if you believe you don't meet all the job requirements, we are eager to learn how you can contribute to our team. Join us in our journey of growth! Welcome home!In addition to our exceptional team and culture, we offer fantastic benefits that make Scout24 an outstanding workplace!

Join Zeta Global as a Senior Software Engineer specializing in Real-Time Ad Serving. In this role, you will leverage your expertise to develop and optimize our advertising technologies, ensuring the delivery of high-performance solutions that meet our clients' needs. You will collaborate with cross-functional teams to architect and implement scalable systems that drive business growth.

Join Almedia, a forward-thinking company that accelerates career growth for those eager to push the boundaries. As Germany's aspiring second bootstrapped unicorn and Europe’s #3 fastest-growing company according to the FT1000 in 2025, we are revolutionizing marketing by rewarding our community of over 60 million users for engaging with top brands.We are on the lookout for a talented Backend Engineer to enhance our AdTech platform. If you have a passion for developing scalable and high-performance web applications and thrive in a collaborative team environment, we want to hear from you!Tech Stack:TypeScript, NestJS, Jest.GraphQL, REST, gRPC, WebSockets.MySQL, MongoDB, Redis, BigQuery.RabbitMQ, Google Pub/Sub.Docker, Kubernetes, GitLab CI/CD.Datadog.What You’ll Do Write clean, efficient, and scalable code utilizing NestJS and TypeScript.Create a data-driven product by integrating external services for A/B testing and feature flagging.Deliver high-quality, testable code swiftly, ensuring smooth operations.What You’ll Bring Proven experience in web development.Solid understanding of scalable systems.Experience with most of our tech stack in a production environment.An ownership mindset: taking full responsibility for your work.Strong English communication skills for effective teamwork.What Makes You a Great Fit Experience with microservices architecture.Background in DevOps/SRE practices.Why Choose Almedia? Dynamic work environment.Fast career advancement opportunities.Innovative projects with real impact.

About the CompanyAndercore is an innovative AI-driven trading platform revolutionizing industrial supply chains in sectors such as infrastructure, energy, and construction materials. Our platform seamlessly connects vetted suppliers from Asia, Europe, and the GCC region with local demand, offering a single integrated solution.Leveraging our proprietary AI stack, we digitize and automate the entire lifecycle of materials trade—from procurement and pricing to inventory management, logistics, and embedded financing—eliminating countless manual and relationship-driven processes in favor of real-time orchestration.Our platform provides buyers with instant quotes, dependable availability, and predictable delivery through a unified operating system. Suppliers benefit from precise forecasting, disciplined demand management, and seamless integration into cross-border fulfillment networks. By partnering with leading brands, we facilitate both dropship and cross-dock fulfillment for large-scale transactions, transforming global supply chains into predictable, software-like workflows.Scaling to triple-digit-million GMV and operating in six international markets, we are rapidly moving towards profitability. With a passionate team of over 80 professionals based in Berlin (HQ) and Asia, we are developing the world's first industrial-grade AI operating system for materials, redefining operations in one of the globe's largest and most essential industries.Backed by top-tier investors and global institutional banking partners, we recently secured $40 million in Series B funding from Atomico, Project A, and Invent Capital, with institutional backing from Commerzbank and KfW.Join our tech team and collaborate with a group of ambitious and knowledgeable engineers, tackling complex problems while gaining exposure to commercial aspects.The Tech Stack: Python, LangGraph, LLM APIs (OpenAI, Anthropic, Gemini), AWS, GitHub Actions, Node.js, Java 21 (Spring Boot 3), Postgres, Kinesis, Terraform, Typescript, NextJS, React.

Hello! We appreciate your interest in our team! Are you ready to embrace a new career challenge, or are you simply exploring opportunities? If so, you have come to the right place! We are on the lookout for a skilled Senior Backend Developer to join our dynamic team. In this pivotal role, you will contribute to the growth and advancement of our Hospitality product group, helping us to penetrate new markets and enhance our all-encompassing commerce platform. You will specifically be part of the team dedicated to developing a sophisticated, modular framework for user and permissions management. Your work on a range of projects will significantly affect the everyday experiences of thousands of customers globally and aid in revitalizing local communities. Join us as we shape the future of hospitality technology!

Join our innovative team as a Senior Software Engineer specializing in Solr. In this fully remote position, you will have the opportunity to leverage your expertise in search technologies to design, implement, and optimize high-performance applications. Collaborate with cross-functional teams to drive the development of robust solutions that meet our clients' needs.

Your RoleYou will become a key member of our EXP Squad, responsible for developing customer-facing APIs and backend systems that enable enterprise clients to manage and automate their IoT connectivity. These production systems play a crucial role in enhancing adoption, scalability, and reliability.As a Senior Software Engineer, you will work at the crossroads of innovative product design and technical excellence. Your role extends beyond merely executing tasks; you will take complete ownership of features, driving them from initial discovery and architectural design through to deployment and ongoing iterations. You will be instrumental in creating scalable, secure, and extensible systems.Our core technology stack comprises TypeScript, Node.js, and NestJS, all hosted on AWS with Infrastructure as Code.Location: Berlin, Würzburg, or remote within Germany and Poland.

About Tide Tide supports small and medium-sized enterprises (SMEs) by helping them streamline operations and cut costs. The platform goes beyond business accounts and banking services, offering a full range of administrative tools for tasks like invoicing and accounting. With more than 1.8 million members in the UK, India, Germany, and France, Tide is reshaping how small businesses manage their finances. The company builds technology-driven solutions tailored for SMEs, focusing on fast onboarding, low fees, and features designed to save time and money. Data guides every decision at Tide, with the goal of letting SMEs concentrate on their core work while the platform handles the rest.

**Design and Develop**: Craft and maintain robust, high-performance, and secure web applications using leading technologies such as Vue.js, Node.js, TypeScript, Nuxt, and Next.js. Your contributions will directly impact customer interactions, encompassing everything from secure authentication processes to dynamic gamification features.**Lead Feature Implementation**: Take full ownership of significant feature developments, overseeing the entire lifecycle from technical design to implementation and production monitoring. You will engage in complex challenges such as creating fraud-resistant systems, enhancing user onboarding, and implementing self-service profile management.**Promote Web Experimentation**: Position our web platform as a swift avenue for transforming ideas into validated insights. You will prioritize A/B testing and rapid iteration, empowering the business to experiment and validate concepts swiftly.**Advocate for Frontend Quality**: Champion best practices in testing, code quality, and frontend architecture within your team. You will conduct code reviews, mentor fellow engineers, and elevate standards of excellence.**Enhance Observability**: Ensure that the features you create are observable and dependable. Implement monitoring, error tracking, and performance metrics to instill confidence in production and support data-driven enhancements.**Collaborative Approach**: Work closely with Product Managers, Backend Engineers, Designers, and Marketing teams to develop solutions that meet customer requirements while adhering to technical and business constraints.**Contribute to Broader Initiatives**: Engage in frontend architecture discussions and contribute to shared tools and patterns that benefit multiple teams in the Consumer sector, extending your influence beyond immediate responsibilities.**Prioritize Security**: In a role focused on authentication and fraud prevention, maintaining security is paramount. You will adhere to security best practices, identify potential vulnerabilities, and help safeguard customer data and accounts.

We are seeking a highly skilled Senior Data Engineer to join our dynamic team at repriskag in Berlin. In this pivotal role, you will be responsible for designing, building, and maintaining scalable data pipelines that support our data-driven decision-making processes. You will work closely with data scientists, analysts, and other stakeholders to ensure data quality and accessibility.

Join a pioneering cybersecurity and AI startup in Berlin!TechBizGlobal is on the lookout for a Founding Backend Engineer (Go) to be an integral part of our founding team, responsible for architecting the essential security, identity, and enforcement frameworks for our cutting-edge AI-driven security risk management platform.Founded by seasoned cybersecurity experts with roots in Israeli Intelligence, we seek a proactive Backend Engineer (Go) to take on a hybrid role based in the heart of Berlin. If you have a passion for cybersecurity and AI technology, excel in dynamic startup environments, and relish the challenge of building complex systems from scratch, this is your chance to make a significant impact.Our mission is to develop a next-generation cyber risk platform that empowers enterprises to comprehend, assess, and mitigate identity risks at scale. We aim to transform intricate identity and security data into straightforward, actionable insights that Chief Information Security Officers (CISOs) and Chief Technology Officers (CTOs) can rely on. From day one, you will collaborate on core platform components, influencing how modern organizations manage and interpret risk through cloud-native systems, AI analytics, and automated enforcement via AI agents.

JetBrains has developed tools for software teams since 2000. By automating routine checks and corrections, JetBrains products help developers focus on building and shipping software. The goal: make development more productive and creative. Role overview This Backend Customer Success Engineer role centers on supporting engineering teams as they adopt Kotlin for backend development. The position focuses on helping organizations successfully bring Kotlin into production environments. What you will do Guide organizations through the process of moving from Java to Kotlin, assisting with migration, integration, and scaling. Troubleshoot technical challenges that arise during the transition and support teams as they progress from initial experimentation to stable production use. Work with potential users to clarify how Kotlin adoption works and help design migration plans that fit their specific needs. Locations Amsterdam, Netherlands Berlin, Germany Munich, Germany Prague, Czech Republic Remote, Germany

Join Almedia, where ambition meets innovation. We are not just another company; we aim to become Germany’s next bootstrapped unicorn and are already recognized as Europe’s #3 fastest-growing company (FT1000, 2025). At Almedia, we’re revolutionizing marketing by empowering a community of over 70 million users who earn rewards for engaging with top brands. This is your chance to contribute to a groundbreaking approach to user acquisition for global enterprises.MLOps EngineerAs an MLOps Engineer, you will play a pivotal role in designing, scaling, and optimizing backend systems that enable our payout automation and growth initiatives. Your expertise will help transform intricate business logic into dependable, scalable data-driven systems.This hands-on position involves active engagement in architecture, automation, and the delivery of high-performance Python systems.Key ChallengesDeveloping automated systems for payout structure generation and transformation.Creating dynamic, personalized payout algorithms based on user behavior.Building continuous split-testing infrastructure to enhance payout experimentation.Scaling high-performance Python systems integrated with real-time data and machine learning pipelines.Your ResponsibilitiesOversee the complete delivery cycle: build, deploy, and optimize backend systems and services at scale.Establish technical direction and coding standards for Python development within ML and data projects.Align technical architecture with business objectives to minimize complexity and enhance efficiency.Collaborate with ML engineers and product teams to develop frameworks for experiment versioning and evaluation.Improve system reliability and performance to ensure robustness and scalability.

Join praxipal, where we're revolutionizing healthcare administration with our AI-powered workforce, tackling the global shortage of medical staff.We believe that medical assistants should focus on patient care rather than mundane tasks like scheduling, messaging, or invoicing. Enter Luna, our AI receptionist, who automates communication and is already embraced by over 100 medical practices.As we expand Luna's capabilities to manage all aspects of patient communication, we're on a mission to streamline administrative processes directly within existing practice systems.Backed by one of Europe’s leading investors and recognized as one of Germany's fastest-growing healthtech startups, our team comprises talents from renowned organizations such as Palantir, Amazon, and SAP.We are currently seeking a Senior Software Engineer (Infra & Platform) to construct the reliable, secure, and scalable infrastructure that powers Luna.The RoleLuna operates in real-time, automating critical workflows involving sensitive patient data. Therefore, reliability, latency, and security are not just goals; they are essential features of our product.In this hands-on, technical role, you will establish and maintain the platform that ensures Luna's reliability in daily practice operations. This includes managing cloud infrastructure, CI/CD processes, identity and access management, observability, and Luna’s real-time voice stack. Your work will help minimize risks, streamline deployments, facilitate quick failure diagnostics, and embed security as a core principle.This position is on-site in Berlin and requires fluency in German.