Senior Backend Software Engineer
Glendale, CA
Category: Engineer
Industry: Communications
Reference ID: JN -052026-106763
Date Posted: 06/03/2026
Shortcut: http://careers.eliassen.com/WRfpQ7
Description:
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
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.
Skills, experience, and other compensable factors will be considered when determining pay rate. The pay range provided in this posting reflects a W2 hourly rate; other employment options may be available that may result in pay outside of the provided range.
W2 employees of Eliassen Group who are regularly scheduled to work 30 or more hours per week are eligible for the following benefits: medical (choice of 3 plans), dental, vision, pre-tax accounts, other voluntary benefits including life and disability insurance, 401(k) with match, and sick time if required by law in the worked-in state/locality.
If anyone reaches out to you about an open position connected with Eliassen Group, please ensure that you are working directly with us by confirming the following:
· When you work with Eliassen Group, all email communication will come from an Eliassen.com address, never Gmail, Yahoo, etc.
· Eliassen Group will never ask you for personal information (home address, bank account, or check routing number) until you have worked with someone clearly associated with Eliassen Group.
If you have any indication of fraudulent activity, please contact fraud@eliassen.com.
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Eliassen Group is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age, protected veteran status, or disability status. Eliassen Group’s Affirmative Action Plan (AAP) is available for inspection by any employee or applicant for employment upon request, during normal business hours of Monday through Friday, 8:30am to 5:30pm EST. Interested persons should contact Phaedra Wells at pwells@eliassen.com for assistance. It is unlawful in Massachusetts and Maryland to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.
Applicants with disabilities that believe they require an accommodation or assistance with a position, please email our HR team at hradmin@eliassen.com. This email inbox is designed exclusively to assist job seekers whose disability prevents them from being able to apply online. Emails sent for other purposes will not receive a response.
Please be advised that a number of fraudulent job postings have been released under the Eliassen Group brand.
Unfortunately, fraudulent job postings can happen. If anyone reaches out to you about an open position connected with Eliassen Group, never provide personal or financial information to anyone who is not clearly associated with Eliassen Group
If anyone seemingly from Eliassen Group has ever requested this personal information in the past or does so in the future, please contact fraud@eliassen.com.
Please ensure that you are working directly with us by confirming the following:
- When you work with Eliassen Group, all email communication will come from an Eliassen.com address, never Gmail, Yahoo, etc.
- Eliassen Group will never ask you for personal information (home address, bank account, or check routing number) until you have worked with someone clearly associated with Eliassen Group, as indicated above