Senior Java Developer (AWS Cloud, ML Platform) At X-Chem, we are building the world’s leading AI-enabled drug discovery platform. Our mission is to accelerate pre-clinical drug discovery by unifying chemistry, analytics, production, logistics, and machine learning into one powerful technology ecosystem. We are expanding our Budapest engineering hub and seeking a Senior Java Developer with strong AWS experience to help integrate three internally built products, each with its own tech stack, into a scalable, modern, cloud-native platform. This role is key to enabling X-Chem to fully leverage our data assets and advanced AI tools in support of next-generation scientific workflows. Hybrid role with flexible working hours, based in a modern and inspiring workspace at Graphisoft Park in Budapest’s 3rd district. What You’ll Do <ul style="margin-top:0.0cm;margin-bottom:0.0cm"> <li style="margin:0.0cm 0.0cm 0.0cm 20.4px;text-align:justify;line-height:normal;background-color:white;text-indent:0.4px">Develop and enhance cloud-native backend services using modern frameworks to support scalable scientific and AI workflows.</li> <li style="margin:0.0cm 0.0cm 0.0cm 20.4px;text-align:justify;line-height:normal;background-color:white;text-indent:0.4px">Integrate three existing in-house products built on different technology stacks into a unified, cohesive platform that improves interoperability and data flow.</li> <li style="margin:0.0cm 0.0cm 0.0cm 20.4px;text-align:justify;line-height:normal;background-color:white;text-indent:0.4px">Modernize targeted legacy components where appropriate, refactoring or rebuilding selected parts to align with current best practices and cloud standards.</li> <li style="margin:0.0cm 0.0cm 0.0cm 20.4px;text-align:justify;line-height:normal;background-color:white;text-indent:0.4px">Design and implement microservices and APIs that connect new and existing systems across chemistry, analytics, production, and logistics workflows.</li> <li style="margin:0.0cm 0.0cm 0.0cm 20.4px;text-align:justify;line-height:normal;background-color:white;text-indent:0.4px">Work within event-driven and AWS-native architectures (EKS, S3, Lambda, containers) to support robust and efficient system interactions.</li> <li style="margin:0.0cm 0.0cm 0.0cm 20.4px;text-align:justify;line-height:normal;background-color:white;text-indent:0.4px">Integrate machine learning models and data pipelines into production environments.</li> <li style="margin:0.0cm 0.0cm 0.0cm 20.4px;text-align:justify;line-height:normal;background-color:white;text-indent:0.4px">Bridge older and newer technology stacks (Java, Python, C#, JSF, HTML, React), ensuring smooth transitions and consistent user experiences.</li> <li style="margin:0.0cm 0.0cm 0.0cm 20.4px;text-align:justify;line-height:normal;background-color:white;text-indent:0.4px">Lead architectural planning and platform strategy discussions, helping determine when to extend, integrate, or modernize components.</li> <li style="margin:0.0cm 0.0cm 0.0cm 20.4px;text-align:justify;line-height:normal;background-color:white;text-indent:0.4px">Improve performance, reliability, and maintainability of both existing systems and newly developed services.</li> <li style="margin:0.0cm 0.0cm 0.0cm 20.4px;text-align:justify;line-height:normal;background-color:white;text-indent:0.4px">Work closely with cross-functional scientific teams to translate domain requirements into scalable cloud-based solutions.</li> </ul> What We’re Looking For <ul style="margin-top:0.0cm;margin-bottom:0.0cm"> <li style="margin:0.0cm 0.0cm 0.0cm 20.4px;text-align:justify;line-height:normal;background-color:white;text-indent:0.4px">Solid professional experience with Java development and backend engineering.</li> <li style="margin:0.0cm 0.0cm 0.0cm 20.4px;text-align:justify;line-height:normal;background-color:white;text-indent:0.4px">Hands-on experience with AWS cloud, Docker, Kubernetes/EKS, and microservices.</li> <li style="margin:0.0cm 0.0cm 0.0cm 20.4px;text-align:justify;line-height:normal;background-color:white;text-indent:0.4px">Familiarity with databases such as MongoDB, PostgreSQL, or Oracle.</li> <li style="margin:0.0cm 0.0cm 0.0cm 20.4px;text-align:justify;line-height:normal;background-color:white;text-indent:0.4px">Experience integrating complex systems in multi-language environments.</li> <li style="margin:0.0cm 0.0cm 0.0cm 20.4px;text-align:justify;line-height:normal;background-color:white;text-indent:0.4px">Strong problem-solving mindset and interest in scientific or data-intensive domains.</li> </ul> Nice to Have <ul style="margin-top:0.0cm;margin-bottom:0.0cm"> <li style="margin:0.0cm 0.0cm 0.0cm 20.4px;text-align:justify;line-height:normal;background-color:white;text-indent:0.4px">Python experience, especially related to AI/ML or data workflows.</li> <li style="margin:0.0cm 0.0cm 0.0cm 20.4px;text-align:justify;line-height:normal;background-color:white;text-indent:0.4px">Familiarity with front-end technologies (e.g., React or JSF) or an interest in understanding UI integration.</li> <li style="margin:0.0cm 0.0cm 0.0cm 20.4px;text-align:justify;line-height:normal;background-color:white;text-indent:0.4px">Knowledge of C# or experience merging diverse tech stacks.</li> <li style="margin:0.0cm 0.0cm 0.0cm 20.4px;text-align:justify;line-height:normal;background-color:white;text-indent:0.4px">Exposure to machine learning platforms.</li> <li style="margin:0.0cm 0.0cm 0.0cm 20.4px;text-align:justify;line-height:normal;background-color:white;text-indent:0.4px">Experience with CI/CD tools.</li> <li style="margin:0.0cm 0.0cm 0.0cm 20.4px;text-align:justify;line-height:normal;background-color:white;text-indent:0.4px">Experience with chemistry, cheminformatics, DEL technology, or drug discovery workflows a strong bonus.</li> </ul> <div> </div>Why Join Us <ul style="margin-top:0.0cm;margin-bottom:0.0cm"> <li style="margin:0.0cm 0.0cm 0.0cm 20.4px;text-align:justify;line-height:normal;background-color:white;text-indent:0.4px">Shape a unified, big data-powered platform at the forefront of modern drug discovery.</li> <li style="margin:0.0cm 0.0cm 0.0cm 20.4px;text-align:justify;line-height:normal;background-color:white;text-indent:0.4px">Work in a growing, global engineering hub with real influence on architecture and direction.</li> <li style="margin:0.0cm 0.0cm 0.0cm 20.4px;text-align:justify;line-height:normal;background-color:white;text-indent:0.4px">Collaborate at the intersection of software engineering, AI/ML, and scientific R&D.</li> <li style="margin:0.0cm 0.0cm 0.0cm 20.4px;text-align:justify;line-height:normal;background-color:white;text-indent:0.4px">Enjoy a mission-driven environment where technology directly impacts human health.</li> </ul> Benefits X-Chem offers competitive compensation and benefits programs designed to meet the diverse needs of our global colleagues. Our Pay for Performance philosophy and practices reward colleagues based on the contributions they make to our business. Our competitive benefits programs support our colleagues by: <ul style="margin-top:0.0cm;margin-bottom:0.0cm"> <li style="margin:0.0cm 0.0cm 0.0cm 20.4px;text-align:justify;line-height:normal;background-color:white;text-indent:0.4px">Promoting health and wellness to help colleagues maintain and improve their physical and mental wellbeing. X-Chem offerings include private health insurance, preventative health programs, and personal wellness benefits.</li> <li style="margin:0.0cm 0.0cm 0.0cm 20.4px;text-align:justify;line-height:normal;background-color:white;text-indent:0.4px">Offering flexible and meaningful benefits, including flexible working hours, long-term loyalty rewards, language learning opportunities, and access to experiences that encourage relaxation, recreation, and cultural enrichment.</li> </ul> How to Apply If you are interested in our job advertisement, click apply.

Senior Java Developer (AWS Cloud, ML Platform) (BU, HU) @ X-Chem, Inc

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