Senior Backend Software Engineer

*Onsite in either Glendale, CA or San Francisco, CA*

Our client seeks a senior backend software engineer to build and optimize high-throughput, low-latency microservices for a digital advertising platform. The role requires strong Java expertise, distributed systems experience in AWS, and hands-on work with Kafka, DynamoDB or Redis, and container orchestration. You will design scalable services, ensure reliable integrations, and contribute to code quality and operational excellence in a fast-paced environment.

*Due to client requirements, applicants must be willing and able to work on a w2 basis. For our w2 consultants, we offer a great benefits package that includes Medical, Dental, and Vision benefits, 401k with company matching, and life insurance.*

Rate: $75.00 to $90.00/hr. w2

JN -052026-106763

Responsibilities

• Write and review production-quality Java code and automated tests.
• Participate in a rotating on-call support schedule.
• Translate product requirements into technical tasks and lead execution.
• Design, document, and review systems in a high-throughput, low-latency microservices environment.

Experience Requirements

• 7+ years of backend software engineering experience building scalable systems.
• Advanced proficiency in Java, including heap, multithreading, performance profiling, and tuning.
• Hands-on experience with Spring Boot and related Spring frameworks.
• Experience with distributed microservices on AWS.
• Proficiency with Apache Kafka and/or Kinesis.
• Experience with non-relational databases such as DynamoDB.
• Experience with Redis and/or Memcached.
• Experience with Terraform, Docker, and Kubernetes.
• Strong communication skills and cross-team collaboration.
• Ability to own deliverables and define metrics for system health.
• Solid understanding of system design and engineering best practices.
• Ability to identify optimizations and improvements.
• Experience mentoring and working in a fast-moving environment.