Software Engineer II

Nexxen; Bellevue (WA); On-site; USD 212,500 - 215,000; Full time

Job summary

Nexxen, Inc. in Bellevue, WA is seeking a Software Engineer II to develop and maintain high-performance backend systems for our programmatic SSP using Node.js.

The role focuses on low latency, reliability, and large-scale data processing in a Linux environment. You will collaborate with product and engineering teams in an Agile setup, ensure system stability and uptime, and participate in on-call rotations to support production operations.

Qualifications

• Bachelor’s degree in Computer Science, Information Technology, or related field.
• Five years of backend development experience.
• Five years in Node.js, PHP, distributed apps, SSH/Linux networks, MySQL and Kafka, Git/GitLab CI/CD, Agile, product troubleshooting.
• Three years OpenRTB (IAB) OpenRTB, VAST, Redis/Aerospike/KeyDB, Datadog or Grafana metrics, RTB/SSP systems.

Responsibilities

• Develop and maintain high-performance backend systems for the SSP with Node.js.
• Ensure low latency, high reliability, and large-scale data processing.
• Work in a Linux environment with end-to-end development, deployment, and monitoring.
• Collaborate with product and engineering teams using Agile methodologies.
• Participate in on-call rotation to support production operations.

Skills

Backend development

Node.js

PHP

Distributed applications

Linux/SSH networking

MySQL

Kafka

Git/GitLab CI/CD

Agile

Troubleshooting & support

RTB/Adtech

Education

Bachelor's degree

Tools

KeyDB/Redis/Aerospike

Datadog or Grafana

Vertica

Job description

Nexxen, Inc.

Software Engineer II

Bellevue, WA

Develop and maintain high-performance backend systems for the company’s programmatic SSP using Node.js. Build and optimize server-side logic to support systems that handle billions of requests per day, with a focus on low latency, high reliability, and large-scale data processing.

Work in a Linux-based environment with end-to-end responsibility for development, deployment, and monitoring. Collaborate with product and engineering teams using Agile methodologies. Apply strong attention to detail to ensure system stability, accuracy, and uptime. Leverage Redis and Aerospike for data storage and caching at scale. Use Git for version control and CI/CD tools for automated deployment. Participate in a rotating on-call schedule to support production operations.

Salary: $212,500- $215,000/year

Qualifications

• Bachelor’s degree in Computer Science, Information Technology, or a related field.
• Five years of experience performing backend development.
• Five years of experience in each of the following: Node.js and PHP, building and maintaining distributed applications, SSH/Linux/network protocols, MySQL database and Vertica, Kafka, Git/GitLab CI/CD, Agile development process, product troubleshooting and support.
• Three years of experience in each of the following: Interactive Advertising Bureau (IAB) OpenRTB spec and VAST, KeyDB/Redis/Aerospike, Datadog or Grafana metrics observability, Adtech industry Supply‑Side Platform (SSP) systems including real-time bidding (RTB), auction dynamics, and performance tuning for high‑throughput ad transactions.
• Experience may be gained concurrently.