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Job Details

Senior Java Performance Engineer at GumGum
Santa Monica, CA, US


GumGum is looking for a Senior Java Performance Engineer to join the Ad Server team.  As a Senior Java Performance Engineer on the Ad Server team, you will play a vital role in scaling our complex production environment.  Our production servers handle 20m million request a minute and generate 50T of new data per day. This position will work directly with distributed computing in a highly scalable, cloud-based environment using various technologies technologies such as Java, Spring, Kafka, Dynamodb, Cassandra, Redis, Druid etc.  


  • Design and code highly scalable, highly available and reliable web services and infrastructure 
  • Perform root cause analysis of production issues; make and implement recommendations 
  • Proactively looking for processing bottlenecks and scaling inefficiencies  
  • Define new and improve upon existing operational KPIs 
  • Write documentation, troubleshooting guides, etc
  • Evangelize best practices across engineering teams
  • Review code changes from others, make suggestions to improve performance
  • Participate on rotational on-call

Minimum Qualifications

  • 5-7 years of development experience
  • Expert Java engineer with experience working on high volume distributed systems
  • Expert application profiler, experienced with JVM tuning etc
  • Track record of building highly scalable and performant systems using cloud infrastructure
  • Experienced with various types of data persistence and caching technologies - DynamoDB, Cassandra, Elasticache (Memcached, Redis)
  • Solid troubleshooting and problem solving skills
  • Experience in CI/CD and deployment automation 
  • Deep understanding of AWS technologies 
  • Strong interpersonal skills, capable of leading 

Benefits & Perks

  • Competitive health, vision and dental benefits
  • Healthcare and dependent care FSA
  • Employer-matched 401(k) plan
  • Stock incentive program
  • Paid parental leave
  • Fitness reimbursement and wellness workshops
  • Discounted Pet Health Program
  • Flexible time off and work schedule
  • Commuter perks
  • Stocked kitchen & Everytable Smartfridge
  • Dog-friendly HQ office - we love our fur babies! 
  • Incredible work/life balance with a collaborative and friendly work space
  • GumGum Gives Back volunteering opportunities
  • Team building lunches and events, and monthly company celebrations
  • Located in hotbed of tech startups, just blocks from the beach

Career & Development Focus

  • Ongoing learning and development for education opportunities such as webinars, books, classes, relevant conferences and events
  • Opportunities to pursue business related side projects and yearly Hackathon
  • Highly encouraged to contribute to open source software, including our own open source software
  • Environment of learning from peers, including meetups, presentations and blog posts
  • Opportunity to work with cutting edge technology
  • Life Skills sessions - geared towards the whole life/health/person
  • Leadership Bites Dinner Series - connecting current and future GumGum leaders over great food and meaningful conversation