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Senior Java Backend Engineer AdTech, High-ThroughputNexxen International Ltd. • San Carlos, Arizona, United States
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Senior Java Backend Engineer AdTech, High-Throughput

Nexxen International Ltd.
  • US
    San Carlos, Arizona, United States
  • US
    San Carlos, Arizona, United States
Apply Now

About

Overview Who is Nexxen? Flexible advertising, unified by data. Nexxen empowers advertisers, agencies, publishers and broadcasters around the world to utilize data and advanced TV in the ways that are most meaningful to them. Our flexible and unified technology stack comprises a demand-side platform (DSP) and supply-side platform (SSP), with the Nexxen Data Platform at its core. Why join the Nexxen team? With a global footprint, you can be part of a team that is transforming advertising through our creative, flexible and unified solutions. Employees hustle, commit and dedicate themselves to pillars that make up the Nexxen Way – the 3Cs - Customer Centric, Curious Mindset, Collaborative with No Ego. What You’ll Do Serve as a senior engineer on a talented team building critical, high-performance, large-scale services for Nexxen DSP programmatic integrations and platform products Independently transform vague business requirements into simple, well-reasoned technical designs and drive them from concept through production Partner closely with the Product team, the Engineering Manager, and cross-functional stakeholders to shape requirements, scope, and roadmap Take full ownership of complex initiatives, end-to-end design, implementation, integration, rollout, and post-launch operation Write solid, testable, and performant code for services supporting high throughput and low latency ( Set the technical bar through code reviews and pair programming, inspiring mid- and junior-level engineers to write simple, testable, and performant code by example Mentor and uplevel teammates; act as a force multiplier for the broader engineering organization Apply an SRE mindset to production deployments—observability, on-call readiness, incident response, capacity planning, and continuous reliability improvements Identify and resolve performance bottlenecks in large-scale distributed systems that process billions of transactions per day with strict SLAs Drive increased test, monitoring, and automation coverage across services, including automated acceptance testing Collaborate on technical design across teams and contribute to architectural decisions for the DSP platform Explore and prototype the application of emerging technologies, especially AI, to solve technical and AdTech problems Operate within Agile / DevOps practices in a fast-paced environment where you can quickly see the results of your work Lead and participate in planning, grooming, and architectural review sessions with the team and stakeholders What You’ll Bring Expert Java engineer with 7+ years building backend systems at scale In-depth knowledge of the JVM ecosystem, including garbage collection, profiling, and tuning to achieve low latency and high throughput Strong grounding in distributed computing—REST APIs, fault tolerance, scalability, consistency, and resilience Strong knowledge of data structures, algorithms, and systems design fundamentals Proven ability to independently turn ambiguous business problems into simple, pragmatic technical designs SRE mindset: you take ownership of what you ship and care deeply about reliability, observability, and operational excellence in production Track record of code review and technical mentorship that raises the bar for mid- and junior-level developers Detail-oriented in business and technical requirements gathering; comfortable challenging assumptions and clarifying scope Strong experience with automated acceptance testing and a test-first mindset Solid SQL/RDBMS skills and hands-on experience with NoSQL distributed databases such as Aerospike, Cassandra, Redis, or KeyDB Hands-on experience with real-time streaming pipelines using Kafka, Kinesis, or similar technologies Strong understanding of operating systems and significant experience working in Linux environments Experience with web/application servers such as Tomcat Solid grasp of networking and load balancing techniques Production experience with Docker and Kubernetes Proficiency with Git and CI/CD pipelines (GitLab CI/CD or equivalent) Experience working in Agile / DevOps environments and a strong team-player attitude—willing to roll up your sleeves and help teammates ship Strong verbal and written communication skills, including the ability to articulate complex technical trade-offs to technical and non-technical audiences Strong interest in solving problems in AdTech and a desire to grow into a subject-matter expert in the space Strong interest in applying the latest technology, particularly AI, to technical and AdTech problems Prior AdTech industry experience strongly preferred Familiarity with Python or Scala is a plus
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  • San Carlos, Arizona, United States

Languages

  • English
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