Senior Java Full Stack Engineer | Location: San Leandro, CA

[Mohammad Sazid]

Hello,

Please review the position below and reply with your details and an updated resume if you are interested.

 

Job Title: Senior Java Full Stack Engineer

Location: San Leandro, CA 
Experience: 13+ Years
Employment Type: Long Term / Contract

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Job Description

We are seeking a highly experienced Senior Java Full Stack Engineer to design, develop, and deliver enterprise-scale applications using modern Java, Spring Boot, Microservices, and Angular/React technologies. The ideal candidate will have strong hands-on experience across backend, frontend, cloud, and event-driven architectures, with a proven ability to build scalable, secure, and high-performance systems.

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Key Responsibilities

·       Design and develop cloud-native microservices using Java (8/11/17), Spring Boot, Spring Cloud

·       Build and consume RESTful APIs with strong focus on security, scalability, and performance

·       Develop responsive and user-friendly UI applications using Angular and/or React

·       Implement event-driven architectures using Apache Kafka and messaging systems

·       Integrate applications with databases including MongoDB, PostgreSQL, Oracle, and DB2

·       Containerize and deploy applications using Docker and Kubernetes (EKS/OpenShift)

·       Implement authentication and authorization using OAuth2, JWT, Spring Security

·       Optimize application performance using caching solutions like Redis/ElastiCache

·       Build and maintain CI/CD pipelines using Jenkins, Git, Maven, and related tools

·       Collaborate with DevOps, QA, and business teams in an Agile/Scrum environment

·       Perform code reviews, mentor junior developers, and contribute to technical decisions

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Mandatory Skills

·       Java (8/11/17), Spring Boot, Microservices

·       Angular and/or React

·       REST APIs, JSON

·       Kafka / Messaging systems

·       SQL & NoSQL databases

·       MongoDB

·       Docker & Kubernetes

·       AWS or other cloud platforms

·       CI/CD pipelines

·       Agile/Scrum methodology

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Preferred Skills

·       Experience with Kafka Streams, Kafka Connect

·       Knowledge of MongoDB aggregations and performance tuning

·       Exposure to Helm, Prometheus, Grafana

·       Experience in banking, payments, energy, or government domains

·       Certifications in Cloud or Java

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Nice to Have

·       Leadership or mentoring experience

·       Exposure to MLOps, Observability, or Security scanning tools

·       Experience working with large-scale, high-transaction systems

Thanks,

Max | KLNtek

Lead - Recruitment

Email: m...@klntek.com

US:+1(626) 789-7418

324 E Foothill Blvd, Ste 206, 91006 Arcadia, California