Senior JavaScript Engineer

Job Description Ciklum is looking for a Senior JavaScript 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 JavaScript Engineer, become a part of a cross-functional development team engineering experiences of tomorrow. This project is with a global Financial Services Provider that focuses on providing responsible credit to underbanked customers in international markets. The current strategy centers on consolidating technology delivery to a single partner to drive efficiency and operational excellence. You will join the Customer Application. The primary mobile application serves as a critical self-service tool for over 800,000 users. It is currently undergoing a technology refresh, migrating to a modern framework to improve scalability, performance, and accessibility compliance across the organization's European footprint. Responsibilities Lead the development of complex solutions comprising cloud infrastructure and platform services utilizing automated deployment methodsApply agile methodology to software development processesCommunicate effectively with both peers and delivery team stakeholdersForge close links with architects, developers, analysts, and wider team members within the development team Requirements Minimum 5 years' experience in this role developing complex solutionsExpert proficiency in React Native (iOS and Android) and React Native ExpoExpert proficiency in Typescript/JavascriptExpert proficiency in Google Play and App Store ConnectExpert proficiency in Firebase Services (Push, Crashlytics)Expertise in Git/source control including branching and pull requestsExpertise in JIRA, Confluence, and SCRUM software development processesFluent English speaking and excellent attention to detailValid AWS Certified Developer – Associate certificate as an advantage Desirable Competency in Snyk or equivalent security toolingCompetency in Kibana or equivalent logging solutionsExperience working within a Product Operating Model What’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 premium medical package through LuxmedBenefits: 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.