Java Backend Lead/ Architect

As a Java Backend Lead/Architect at T-Systems, your primary responsibilities will include leading backend development, architecting scalable microservices using DDD and SOLID principles, and optimizing high-traffic applications. You will ensure clean code practices, API design, and implement security measures. Working with modern technologies like Spring Boot, Docker, and Kubernetes, you will also manage databases and mentor junior developers, driving overall architectural excellence in projects.

To be successful as a Java Backend Lead/Architect at T-Systems, you should have at least 8 years of hands-on experience with Java 17+, Spring Boot, and container orchestration technologies like Kubernetes. Additionally, expertise in multi-threading, distributed systems, and DevOps tools is important. Strong problem-solving skills and the ability to collaborate effectively with teams will enhance your application.

Essential technical skills for the Java Backend Lead/Architect at T-Systems include proficiency in Java 17+, experience with Spring Boot and Spring Cloud, and knowledge of messaging systems like Kafka or RabbitMQ. Familiarity with API design (OpenAPI, REST), containerization (Docker, Kubernetes), and database management (PostgreSQL, MSSQL) is also crucial for this role.

At T-Systems, the work environment for a Java Backend Lead/Architect is hybrid, allowing you to balance remote work with in-office collaboration. The company fosters a culture of innovation and teamwork, where you will engage with talented peers and contribute to significant digital transformation projects across industries. You'll have access to continuous learning opportunities to keep your skills sharp in a fast-evolving tech landscape.

As a Java Backend Lead/Architect at T-Systems, you will contribute to digital transformation by architecting robust microservices that enhance operational efficiency and scalability. Through your expertise in modern tooling and development practices, you will facilitate the seamless integration of IT solutions across various sectors, preparing T-Systems for future technological advancements and client needs.

When discussing your experience with Java 17+, focus on specific features that enhance backend development such as new language features, performance improvements, or enhancements in libraries that you have effectively used in your projects.

When answering this question, elaborate on your understanding of Domain-Driven Design, how to break down complex applications into microservices, and describe your approach to ensuring these services communicate effectively and are independently deployable.

Highlight your techniques for performance optimization, such as profiling the application, identifying bottlenecks, implementing caching strategies, and optimizing algorithms to ensure the application can handle increased loads without compromising on speed.

Share the specific tools and frameworks you've employed for monitoring Java applications, such as OpenTelemetry, Micrometer, and your experience in setting up dashboards for performance monitoring, which helps in proactively managing application health.

For this question, explain how you prioritize RESTful principles, your methods for documentation (like OpenAPI), and how you ensure that APIs remain intuitive and client-friendly while maintaining robust security standards.

Detail your hands-on experience with Docker and Kubernetes, discussing specific projects where you implemented these tools for deploying Java applications and the benefits they provided in maintaining scalability and reliability.

Discuss your familiarity with SQL and NoSQL databases, the importance of choosing the right database for specific application needs, and your experience in handling data migrations and performance tuning.

Discuss practices you enforce such as code reviews, pair programming, and adherence to coding standards. Share how these practices help maintain code quality and facilitate team learning.

Reflect on your guidance style, mentioning specific examples of mentorship, how you've aided junior team members in achieving their career goals, and the value of knowledge sharing in your team.

Mention your strategies for continuous learning, such as participating in online courses, attending tech conferences, reading blogs and books, and how you apply this knowledge in real-world scenarios.