Senior Java Software Engineer
QvalFocus Inc.
We are seeking a highly skilled Senior Software Engineer (Java) to join an elite engineering team building high-scale, mission-critical systems. This role is ideal for engineers who enjoy solving complex problems, take pride in clean and maintainable code, and thrive in high-throughput, always-on environments. You will contribute to platforms operating at extreme transaction volumes (TPS), requiring strong system design, reliability engineering, and performance optimization expertise. Key Responsibilities Design, develop, and maintain scalable, high-performance backend systems using Java Solve complex technical challenges with a structured, analytical approach Collaborate with senior engineers to evolve distributed system architecture Participate in design reviews and defend architectural decisions with data-driven reasoning Improve system performance, resilience, and observability in high-TPS environments Contribute to CI/CD automation and continuous engineering improvements Required Technical Skills Strong hands-on experience with Java 8 / 11 Completable Future & asynchronous programming Deep understanding of Kafka Reliability, infrastructure, and performance tuning Data & Persistence Experience with MongoDB (data modeling, scalability, performance optimization) Experience with enterprise databases such as Oracle, Sybase IQ, or DB2 Experience with Jenkins for CI/CD pipelines Familiarity with SonarQube for code quality and technical debt management Hands-on experience with Drools or similar rules engine #J-18808-Ljbffr QvalFocus Inc.
Vacancy posted 2 days ago
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