Senior Fullstack Developer (hybrid from Warsaw)

Senior Fullstack Developer. This is a hybrid position based in Warsaw, (50% on-site presence).

Responsibilities

• Design, implement and maintain backend services using modern Java (versions 17–21) and Spring Boot 3.x within microservices architectures.

• Develop and maintain frontend components and Single Page Applications using Node.js, TypeScript and Angular, ensuring maintainability and sound frontend architecture.

• Architect and implement event-driven and messaging solutions using Kafka; integrate with relational databases (Oracle) and in-memory stores (Redis).

• Apply Domain-Driven Design principles to model complex business domains and deliver modular, testable solutions.

• Contribute to security design and implementation of web applications, including OAuth2/OIDC integration and adherence to OWASP principles.

• Participate in CI/CD pipelines (GitLab CI required), version control workflows (Git), and use developer tools such as IntelliJ and VS Code.

• Collaborate with distributed, international teams using Agile methodologies (Scrum/Kanban), Jira and Confluence; perform code reviews and provide practical technical guidance to peers.

Qualifications

• Minimum 6 years of professional software development experience, with senior-level, hands-on delivery on large-scale applications.

• Strong fullstack background; backend-only candidates will not be considered.

• Excellent written and spoken English.

• Required technical skills:

  • Java 17 or newer (Java 21 experience preferred)

  • Spring Boot (3.x) and microservices

  • Kafka (event-driven / messaging systems)

  • Domain-Driven Design (DDD)

  • Node.js and TypeScript

  • Proven experience building SPAs with Angular

  • Strong SQL skills, particularly with Oracle

• Security and tooling:

  • Practical experience with OAuth2 and OIDC; strong understanding of web application security and OWASP principles

  • Version control with Git and CI/CD with GitLab CI (required)

  • Familiarity with Kafka in both backend and operational contexts

  • Working knowledge of Jira and Confluence

• Desirable (nice to have):

  • Experience with Redis

  • Familiarity with Docker and Kubernetes

  • Experience with Jenkins, Maven and Webpack

  • Python and familiarity with AI-based code generation tools

• Experience working in distributed, international teams and a DevOps mindset.

Benefits

• Hybrid working arrangement: Warsaw, Poland — approximately 50% on-site presence.

• Opportunity to work on large-scale systems using modern Java, microservices and event-driven architectures.

• Collaboration within distributed, international teams and exposure to established Agile and DevOps practices.

• Use of contemporary developer tooling and platforms (IntelliJ, VS Code, GitLab CI, Kafka, Spring Boot).

• Scope to apply and deepen expertise in security, DDD and end-to-end fullstack development.

• Unique TEAL culture, relationship- and respect-driven community, non-corporate atmosphere.

• Agile approach and no bureaucracy.

• Outstanding integration trips to various places in Europe for all employees.

• Activities to support your well-being and health.

• Luxmed Gold Extended medical care and Multisport Plus benefit.

If you meet the stated qualifications and are interested in this opportunity, we encourage you to apply via the application form.