Engineering Team Leader (Customer Care)

XTB is a global company from the financial industry, focusing on online trading of financial instruments. We are the largest FinTech in Poland and a leader in Central and Eastern Europe, and the range of our operations covers several countries, including Asia and South America. At XTB, we focus on the development of our employees, giving them opportunities to gain knowledge and skills in various fields, as well as offering a number of training and development programs. If you are looking for challenges and want to gain valuable experience in an international business environment, XTB is the right place for you. We are a certified Great Place to Work company. About the Customer Care team Customer Care is a department at XTB whose mission is to support post-onboarding processes for both new and existing clients. We closely collaborate with a number of other XTB departments. We design and develop an ecosystem of AI-based solutions - from internal microservices, through integrations with external tools, to our own Chat AI. We create internal AML and antifraud systems, as well as a Customer Database - a central collection of client data. Each of these solutions translates into higher service quality, greater security, and customer satisfaction. We work in quarterly cycles based on clearly defined goals and KPIs.The Engineering Team Leader role We are looking for a person who will join our team as a Team Leader. This role combines technical and leadership competencies and works closely with the Product Manager. The team consists of 10 people and is multidisciplinary - responsible for the full software development lifecycle: from analysis and architecture, through backend, web and mobile, to testing and observability. On the backend side, we work with microservices using Micronaut, Reactor, and gRPC in a Kubernetes/Rancher environment. The frontend is built with Angular (micro frontends), and mobile applications are developed natively on Android and iOS. We also use Salesforce CRM, where we develop our own modules in Apex. Responsibilities • Deliver programming tasks in accordance with established technological standards and provide hands-on support to the team in the development process, • Collaborate with the Product Manager in planning and coordinating team work, • Co-create solution architecture in cooperation with other teams, • Ensure high team efficiency - identifying and removing obstacles in the development process, • Maintain code quality, technical standards, and engineering practices within the team, • Develop team members through mentoring, regular 1:1 meetings, and selection of training. Requirements • Senior-level programming experience, • Experience as a team manager, • Ability to create and develop microservices based on Java, • Practical experience with at least one AI coding tool: Claude Code, Copilot, Cursor, Windsurf, or OpenClaw, • Knowledge of scalability, performance, and reliability of IT systems, • Experience in leading projects from architecture phase to production deployment, • Ability to work with a multidisciplinary and remote team, • Knowledge of Salesforce environment is a plus, • Knowledge of one of the following technologies is a plus: Swift, Kotlin, Angular, TypeScript. Technology stack • Backend: Java 21+, Micronaut, gRPC, Kafka, Pulsar, RabbitMQ, Chronicle. Data stored in PostgreSQL, MongoDB, and Redis. Environment: Kubernetes/Rancher, multiple data centers. • Web: Angular, TypeScript, RxJS. Microfrontend architecture based on web components, monorepo with Nx. • Mobile: Android - Kotlin, Clean Architecture, MVI/MVVM, Compose, Coroutines/Flow. iOS - Swift, MVVM-C, SwiftUI, Combine. Firebase (Crashlytics, Remote Config, Analytics), Lokalise. • Observability and testing: Prometheus, Grafana, OpenSearch, Opsgenie. JUnit, Testcontainers, Appium, Playwright. • Tools: GitLab + GitLab CI, Jira, Confluence, Google Workspace, IntelliJ. AI: Copilot, Claude Code, Windsurf (optional). Internal GenAI tools available to all employees. What we offer • Real influence on the development of the company and the product, • Work in an experienced team that is happy to share its knowledge, • A clear vision of development thanks to regular feedback and clear career paths, • Regular team-building meetings. Benefits • A training budget for courses and conferences that interest you, • An extra day off on your birthday, • An extra day off for parents, • Equipment tailored to your needs, • Private medical care and group insurance, • Access to an e-learning platform for learning English and a benefits platform, • Access to a wellbeing platform and the opportunity to take advantage of workshops and private therapy sessions, • Remote work, from the office in Warsaw or from a coworking space in your city.