Java Tech Lead – pharmaceutical industry

Java Tech Lead – pharmaceutical industry Miejsce pracy: Warszawa Technologies we use Expected Java Oracle Applications Kubernetes Docker Spring Boot Optional Angular React.js About the project We are looking for an experienced Senior Software Engineer - Tech Lead who will help us shape the technical direction, lead modernization efforts, and mentor our team on a strategic transformation to modernize systems, migrate parts of a large monolithic application, and evolve towards a more scalable, maintainable architecture. Your responsibilities Lead the design and execution of modernization initiatives, including: refactoring and extracting functionality from a large Java monolith, migrating legacy applications (JSP, Swing, GWT, Stripes) to modern frameworks and architectures, as well as evaluating and introducing new technologies aligned with business needs Define the long-term technical roadmap for system upgrades, modularization, and scalability Work closely with stakeholders to understand business and regulatory requirements in the biotech/medical domain Provide hands-on technical leadership: write high-quality code, review contributions, and ensure best practices Mentor and support other engineers during the migration and modernization journey Collaborate with database experts on Oracle optimization and potential migration strategies Our requirements At least 8 years of professional software engineering experience with Java and enterprise systems, and leading or significantly contributing to modernization projects (e.g., monolith-to-modular/microservices, migration to cloud, refactoring legacy systems) Strong understanding of software architecture, design patterns, and system scalability Expertise with web technologies, APIs, and modern frameworks (Spring Boot, Angular/React, etc.) Solid knowledge of relational databases Familiarity with deployment environments (Tomcat, containers, CI/CD pipelines) Excellent communication skills and ability to collaborate with cross-functional teams with the use of both Polish and English Residing in Poland required Optional Experience in biotech/medical/healthcare software Oracle experience This is how we work on a project Continuous Deployment Continuous Integration What we offer Great Place to Work since 2015 - it's thanks to feedback from our workers that we get this special title and constantly implement new ideas Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022 Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more Comfortable workplace – class A offices or remote work Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers Investment in your growth – meetups, webinars, training platform and technology blog – you choose Fantastic atmosphere created by all Sii Power People Recruitment stages Send your CV Talk to us about your expectations Learn more about our projects and choose the best Start your adventure with Sii Sii Sp. z o.o. Sii is the leading technology consulting, digital transformation, engineering, and business services vendor in Poland. We already employ more than 7 500 professionals and implement projects in a variety of industries for clients from many countries around the world. The Great Place to Work title, won 10 times in a row, proves that at Sii we create a friendly work environment.