Apache Kafka Developer

Position Title: Senior Java Developer (Apache Kafka, Microservices, Event-Driven Systems) Location: Remote Position Status: Contract Position Description: We’re seeking a Senior Java Developer with deep Apache Kafka expertise to design and build high-performance, real-time, event-driven systems at scale. This role is ideal for a seasoned engineer who thrives in distributed systems, microservices architecture, and streaming data environments. You’ll collaborate closely with engineering, architecture, DevOps, and product teams to deliver scalable, resilient, cloud-ready applications that power enterprise-critical solutions. Responsibilities • Design, develop, and scale Java-based microservices and distributed applications • Build and maintain event-driven architectures using Apache Kafka • Develop RESTful APIs and backend services using Spring Boot and related frameworks • Implement Kafka solutions including producers, consumers, topics, partitions, and stream processing • Optimize system performance, scalability, latency, and fault tolerance • Partner with DevOps to support CI/CD pipelines, containerization, and cloud deployments • Contribute to system architecture, design reviews, and technical strategy • Troubleshoot and resolve production issues in high-availability environments • Lead code reviews, best practices, and mentoring for engineering teams • Collaborate within Agile/Scrum teams to deliver high-quality software Required Qualifications • 7+ years of experience in Java development in enterprise environments • Hands-on expertise with Apache Kafka (Kafka Streams, producers/consumers, topic management) • Strong experience building microservices and distributed systems • Proficiency in: • Java, Spring Boot, and REST API development • Event-driven architecture and real-time data streaming • Deep understanding of: • Kafka internals (consumer groups, partitioning, replication, durability) • Kafka Connect • Performance tuning and fault-tolerant design • Experience with SQL and/or NoSQL databases (e.g., PostgreSQL, MongoDB, Cassandra) • Familiarity with Git, CI/CD pipelines, and modern development workflows • Strong problem-solving, debugging, and analytical skills • Excellent communication and cross-team collaboration abilities Nice to Have • Experience with Confluent Kafka platform • Cloud experience with AWS, Azure, or Google Cloud Platform (GCP) • Familiarity with Docker, Kubernetes, and container orchestration • Experience with Kafka Streams, Spark Streaming, or Flink • Background in high-volume, real-time transactional systems • Experience in financial services, healthcare, or large-scale enterprise environments About Seneca Resources: At Seneca Resources, we are more than just a staffing and consulting firm, we are a trusted career partner. With offices across the U.S. and clients ranging from Fortune 500 companies to government organizations, we provide opportunities that help professionals grow their careers while making an impact. When you work with Seneca, you’re choosing a company that invests in your success, celebrates your achievements, and connects you to meaningful work with leading organizations nationwide. We take the time to understand your goals and match you with roles that align with your skills and career path. Our consultants and contractors enjoy competitive pay, comprehensive health, dental, and vision coverage, 401(k) retirement plans, and the support of a dedicated team who will advocate for you every step of the way.