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OpenX is an ad tech company that drives optimal value for advertisers through high-scale marketplaces across all screens
The Role
Lead the architecture and development of a new product, ensuring scalability and high performance while mentoring engineers and driving improvements in development practices.
Summary Generated by Built In
OpenX is focused on unleashing the full economic potential of digital media companies. We do this by making digital advertising markets and technologies that are designed to deliver optimal value to publishers and advertisers on every ad served across all screens.
At OpenX, we have built a team that is uniquely experienced in designing and operating high-scale ad marketplaces, and we are constantly on the lookout for thoughtful, creative executors who are as fascinated as we are about finding new ways to apply a blend of market design, technical innovation, operational excellence, and empathetic partner service to the frontiers of digital advertising.
We’re seeking a Principal Engineer to lead the architecture, development, and technical direction of a product within our platform. You’ll join a talented, remote-first US team and play a pivotal role in designing and coding the platform, mentoring senior engineers, and ensuring the architecture supports rapid iteration, massive scale, and long-term reliability.
An ideal candidate is:
* Open-minded – Welcomes feedback, learns from failure, and adapts quickly to change.
* Proactive – Takes initiative to identify problems and drive thoughtful, effective solutions.
* Self-motivated & Organized – Manages priorities independently and follows through with clarity and accountability.
Key Responsibilities:
- Lead architecture and development of a product, ensuring scalability, fault tolerance, and high throughput, and long-term reliability.
- Design and deliver low-latency services and APIs
- Drive critical platform features from design through implementation, testing, rollout, and adoption.
- Identify and address technical debt, performance bottlenecks, and scalability risks before they impact customers.
- Champion architectural patterns and platform capabilities that improve developer velocity and operational reliability.
- Promote engineering excellence through constructive code reviews, mentoring, and driving improvements in code quality, architecture, and platform best practices.
Required Qualifications:
- 12+ years of professional software development experience, with expertise in Go or a comparable high-performance language (e.g. Java, Rust).
- Hands-on experience with a major cloud platform (GCP, AWS, or Azure) for designing and operating production workloads.
- Proven track record of delivering distributed, high-performance, and highly reliable backend systems that operate at scale.
- Expertise in API design and scaling (RESTful, gRPC, Thrift), including data modeling, error handling, performance optimization, and security best practices.
- Experience leading architecture and technical direction across multiple teams or product areas.
- Strong problem-solving skills, with the ability to anticipate and address scalability, reliability, and privacy challenges.
- Excellent collaboration and communication skills, with success working closely with product, engineering, and cross-functional stakeholders.
- Proven ability to mentor senior engineers and raise technical standards across an organization.
Preferred Qualifications:
- Experience designing real-time, low-latency, large-scale data processing systems.
- Knowledge of programmatic advertising or other high-throughput transactional platforms.
- Familiarity with CI/CD pipelines, infrastructure as code (Terraform, Helm), and advanced monitoring/observability tools (e.g. Grafana).
- Proven ability to introduce architectural patterns that improve developer velocity and system reliability.
- Experience using AI-assisted development tools to enhance productivity.
Top Skills
AWS
Azure
GCP
Go
Grafana
Grpc
Helm
Java
Restful
Rust
Terraform
Thrift
What the Team is Saying
Cassie Nufable
Senior Manager, FP&A
Rachel Tugender
Sales Director
Ben White
Director of Engineering
Qixuan Yu
Data Scientist II
Nathan Rideout-Cadieux
Director, Buyer Development
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The Company
What We Do
OpenX is focused on unleashing the full economic potential of digital media companies. We do this by making digital advertising markets and technologies that are designed to deliver optimal value to publishers and advertisers on every ad served across all screens.
Why Work With Us
At OpenX, we value curiosity, innovation, and diversity. We are passionate about pushing the boundaries of ad tech and finding new ways to deliver value to our partners and we know our best chance of delivering is by creating diverse and inclusive teams where employees can do their best work being their authentic selves.
Gallery
OpenX Technologies Offices
Hybrid Workspace
Employees engage in a combination of remote and on-site work.
Typical time on-site:
Not Specified
