The Senior Software Engineer will join the Nexxen DSP Software Development team as a senior technical contributor and trusted leader on mission-critical, high-throughput services. Responsibilities include designing, implementing, and operating large-scale, low-latency backend services for programmatic advertising. The role requires ownership of complex initiatives, mentoring engineers, applying SRE principles, and collaborating with product and cross-functional teams. Candidates must have 7+ years of experience with Java backend systems, JVM tuning, distributed computing, SQL and NoSQL databases, real-time streaming technologies, Linux, Docker, Kubernetes, Git, and CI/CD pipelines. Experience in Agile/DevOps environments, strong communication skills, and interest in AdTech and AI applications are required. The position is hybrid, based in San Carlos, CA, with a salary range of $170,000 to $200,000. Benefits include medical, dental, vision, disability insurance, 401(k), EAP, parental leave, discretionary time off, and company holidays.
What you'll do
Serve as a senior engineer building critical, high-performance, large-scale services for Nexxen DSP programmatic integrations and platform products
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Independently transform vague business requirements into simple, well-reasoned technical designs and drive them from concept through production
Partner with Product team, Engineering Manager, and cross-functional stakeholders to shape requirements, scope, and roadmap
Take full ownership of complex initiatives including design, implementation, integration, rollout, and post-launch operation
Write solid, testable, and performant code for services supporting high throughput and low latency (< 70ms response time)
Set technical bar through code reviews and pair programming, mentoring mid- and junior-level engineers
Mentor and uplevel teammates to act as a force multiplier for the engineering organization
Apply SRE mindset to production deployments including observability, on-call readiness, incident response, capacity planning, and reliability improvements
Identify and resolve performance bottlenecks in large-scale distributed systems processing billions of transactions per day
Drive increased test, monitoring, and automation coverage including automated acceptance testing
Collaborate on technical design and contribute to architectural decisions for the DSP platform
Explore and prototype emerging technologies, especially AI, to solve technical and AdTech problems
Operate within Agile / DevOps practices in a fast-paced environment
Lead and participate in planning, grooming, and architectural review sessions
Requirements
7+ years building backend systems at scale
In-depth knowledge of the JVM ecosystem including garbage collection, profiling, and tuning
Strong grounding in distributed computing including REST APIs, fault tolerance, scalability, consistency, and resilience
Strong knowledge of data structures, algorithms, and systems design fundamentals
Ability to independently turn ambiguous business problems into simple, pragmatic technical designs
SRE mindset with ownership of reliability, observability, and operational excellence
Experience in code review and technical mentorship
Detail-oriented in business and technical requirements gathering
Strong experience with automated acceptance testing and test-first mindset
Solid SQL/RDBMS skills and hands-on experience with NoSQL distributed databases
Hands-on experience with real-time streaming pipelines using Kafka, Kinesis, or similar
Strong understanding of operating systems and experience 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
Strong verbal and written communication skills
Strong interest in AdTech and desire to grow as a subject-matter expert
Strong interest in applying AI to technical and AdTech problems
Prior AdTech industry experience strongly preferred
Medical insuranceDental insuranceVision insuranceDisability insurance401(k)Employee Assistance Program (EAP)Parental leaveDiscretionary time offCompany-paid holidays
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