Engineering Team Leader (Java)

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.

We are looking for a Team Leader to join our team, combining both technical and leadership skills. In our structure, each business area and multiple SCRUM teams are overseen by a Program Manager. Each team consists of a Team Leader, developers, and testers, supported by a Product Manager, Scrum Master, and UX Designers.

Our team is multi-skilled and delivers complete solutions - including analysis, architecture, backend, web, mobile, testing, and observability - using a microservices architecture. On the backend, we use Micronaut, Reactor, gRPC in a Kubernetes/Rancher environment, while frontend technologies include Angular (MFE), native Android, and iOS applications.

Technologies We Work With

Backend:

• Microservices mainly in Java 17+ with Micronaut.
• Deployment on Rancher (Kubernetes) across multiple data centers.
• Communication between microservices via gRPC.
• Asynchronous messaging using Kafka, Pulsar, RabbitMQ, Chronicle.
• Databases: Postgres, MongoDB, Redis.

Mobile:

• Android: Native Kotlin, modular architecture, Clean Architecture, MVI/MVVM, reactive with Coroutines/Flow and Compose.
• iOS: Native Swift, modular architecture, MVVM-C, reactive with Combine, views with SwiftUI.
• Mobile tools: Firebase (Crashlytics, Remote Config, Analytics), Localise.

Web:

• Angular with TypeScript, JavaScript, and RxJS.
• Microfrontend architecture using web components, developed in a monorepo with Nx.

Observability & DevOps:

• Monitoring with Prometheus, Grafana, OpenSearch, Opsgenie.
• Code in IntelliJ with Copilot support.
• Version control: GitLab, CI/CD with GitLab CI.

Testing:

• JUnit, Testcontainers, Appium, Playwright.

Tools & Collaboration:

• Task tracking in Jira, knowledge management in Confluence.
• Extensive use of Google Workspace: Gmail, Drive, Docs, Meet, Chat.
• Internal GenAI tools available to all employees.