Senior Java Developer

Ciklum is looking for a Senior Java Developer to join our team full-time in Poland. We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live. About the role: As a Senior Java Developer, become a part of a cross-functional development team engineering experiences of tomorrow. Together, we will work on the project delivering scalable and high-quality software solutions aligned with the product roadmap and modern architectural standards. Responsibilities: Write highly testable, automatable, and performant code across the full SDLC using high coding standards and software best practices Develop the product and deliver features and updates according to the product roadmap Develop and review feature design documents and provide input to update solution specifications Participate in team activities according to the methodology, including daily meetings, planning, and retrospectives Coach and supervise Middle and Junior Engineers based on project needs Requirements: Use best practices and patterns during application design and implementation Hands-on experience with monolith, microservice, and serverless architectural styles In-depth proficiency in Java, implementing applications using defensive programming Proven experience in developing web applications using advanced framework features and industry-standard conventions Practical experience in writing and performance tuning of complex SQL In-depth proficiency with JUnit and Mockito Experience contributing to continuous quality improvement, including conducting code reviews, setting up quality metrics, and monitoring them Hands-on experience with application deployment patterns and tools Practical experience in infrastructure configuration using popular cloud providers Desirable: Experience configuring application security aspects Practical experience in application performance optimization What’s in it for you? Strong community: Work alongside top professionals in a friendly, open-door environment Growth focus: Take on large-scale projects with a global impact and expand your expertise Tailored learning: Boost your skills with internal events (meetups, conferences, workshops), Udemy access, language courses, and company-paid certifications Endless opportunities: Explore diverse domains through internal mobility, finding the best fit to gain hands-on experience with cutting-edge technologies Flexibility: Enjoy flexibility – full remote working possibilities Care: We've got you covered with company-paid premium medical package through Luxmed Benefits: Access the MyBenefit cafeteria platform, allowing you to choose perks that best suit your lifestyle and needs About us: At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you’ll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress. With delivery centers in Wrocław and Gdańsk, our 300+ professionals in Poland drive forward-thinking solutions for global clients. Join a community where collaboration sparks innovation—and your impact reaches millions. Explore, empower, engineer with Ciklum! Interested already? We would love to get to know you! Submit your application. We can’t wait to see you at Ciklum. #LI-AK5