About the Position

We are looking for an experienced Senior Java Developer with Apache Kafka to join our team in a remote position. This role focuses on developing scalable backend services, microservices, and event-driven integrations within a complex enterprise environment.

Responsibilities

Designing, developing, and maintaining scalable backend services and microservices using Java and Spring Boot
Implementing event-driven architectures and data-processing solutions based on Apache Kafka
Building enterprise integrations between internal and external systems using APIs, messaging platforms, and asynchronous communication mechanisms
Participating in technical design and solution architecture discussions, providing expertise in distributed systems and integration patterns
Supporting the modernization and transformation of legacy applications into scalable, maintainable, and cloud-ready solutions
Monitoring, troubleshooting, and optimizing application performance, reliability, and scalability across distributed environments
Collaborating closely with developers, architects, and business stakeholders to deliver strategic data integration and digital transformation initiatives

Requirements

Minimum 10 years of commercial software development experience, including strong senior-level expertise in Java backend development
Strong hands-on production experience with Apache Kafka
Proven experience designing and building microservices, scalable backend services, and event-driven architectures
Practical experience working with distributed systems, enterprise integrations, and data processing solutions
Ability to contribute independently to technical design and solution architecture discussions
Very good English communication skills, enabling effective collaboration in an international environment
Valid Confluent Certified Developer for Apache Kafka (CCDAK) certification

Nice to Have

Production experience with Kafka Streams and Kafka Connect
Experience with cloud-native and containerized environments, including Azure, Kubernetes, OpenShift, Docker, or Podman

Technologies & tools

Must have

Java
Apache Kafka
Kubernetes
MongoDB
Spring Boot
PostgreSQL

Nice to have

Docker
AzureDevOps
Kafka Streams
Kafka Connect

We Offer

Diversified client portfolio
Wide range of technologies
Job stability
Remote work
Contracts with the world's leading brands
Great Place to Work Europe
Many experts to learn from
Open and accessible management team

About the Company

Sii ensures that all hiring decisions are made solely on the basis of qualifications and competence. We are committed to equal and fair treatment of all, regardless of legally protected characteristics. At Sii, we promote a diverse and inclusive work environment, in full compliance with applicable anti-discrimination laws.

Senior Java Developer with Apache Kafka

Job description