Senior Fullstack Engineer

Ciklum is looking for a Senior Fullstack Engineer 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 Fullstack Engineer, become a part of a cross-functional development team engineering experiences of tomorrow. Together, we will work on the project … Responsibilities:Support and ensure the operational reliability of the KUREPO invoicing solutionDesign and implement scalable, resilient, and maintainable systems for our applicationsDrive technical decisions and promote best practices in coding, testing, and deploymentCollaborate closely with Product and Design to translate business requirements into robust technical solutionsProactively identify and address technical debt, performance bottlenecks, and areas for system improvementMentor and guide team members, fostering a culture of technical excellence and continuous improvementRequirements: 5+ years of professional experience in full-stack web developmentProven experience in designing and architecting scalable, distributed systemsStrong PL/SQL knowledgeExperience with Node.js and ReactExperience with Oracle databasesHands-on experience with containerization using Docker and orchestration (e.g., ECS, Kubernetes)Proficient with CI/CD practices and tools (e.g., Jenkins, GitLab CI, GitHub Actions)Skilled in working with both NoSQL (e.g., MongoDB, DynamoDB) and relational databases (e.g., PostgreSQL)Strong problem-solving skills and a passion for code quality and technical excellenceUpper-intermediate or higher level of spoken and written EnglishDesirable: Experience with Java, including Spring and SpringBootExperience with KafkaProficiency in GermanFamiliarity with event-driven architectures and microservicesFamiliarity with Infrastructure as Code (e.g., CloudFormation, Terraform)Experience with GCP and services like BigQueryWhat`s in it for you? Strong community: Work alongside top professionals in a friendly, open-door environmentGrowth focus: Take on large-scale projects with a global impact and expand your expertiseTailored learning: Boost your skills with internal events (meetups, conferences, workshops), Udemy access, language courses, and company-paid certificationsEndless opportunities: Explore diverse domains through internal mobility, finding the best fit to gain hands-on experience with cutting-edge technologiesFlexibility: Enjoy flexibility – full remote working possibilitiesCare: We’ve got you covered with company-paid medical insurance, mental health support, and financial & legal consultations 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. Want to learn more about us? Follow us on Instagram, Facebook, LinkedIn. 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. Apply To This Job