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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
The Staff Software Engineer will architect and deliver high-performance systems, mentor engineers, and drive platform reliability and scalability.
Summary Generated by Built In
Company at a Glance
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.
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 Staff Software Engineer with strong platform and cloud expertise to shape and scale the next generation of our real-time integrations. You will architect, build, and deliver reliable, secure services that enable partners to connect with the OpenX platform.
In this role, you’ll lead major technical initiatives, influence architectural decisions, mentor engineers, and ensure our integrations and platform components operate with exceptional performance and 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:
- Architect and build low-latency systems operating at 1M+ QPS.
- Design and deliver systems that let partners connect and run real-time workloads securely and efficiently.
- Collaborate with partner engineering and product teams to plan, build, and launch integrations aligned with business and technical needs.
- Own critical platform features from end-to-end, from design through rollout and adoption.
- Proactively identify and resolve performance bottlenecks and scalability risks.
- Set technical direction and guide implementation across the team.
- Promote engineering quality through reviews, mentoring, and driving best practices in code, architecture, and platform design.
Required Qualifications:
- 10+ years of software development experience with deep expertise in Go or other high-performance languages (Java, C++, Rust).
- Strong foundation in distributed systems, Kubernetes, and containerized service architectures.
- Skilled at debugging and stabilizing production systems under high load.
- Deep understanding of concurrency, networked systems, and service orchestration.
- Hands-on experience designing and operating production workloads on a major cloud platform (GCP preferred).
- Demonstrated success delivering large-scale, high-performance, and reliable systems.
- Experience integrating services with gRPC, Thrift, REST, and MCP.
- Strong problem-solving skills, with the ability to anticipate and address scalability, reliability, and privacy challenges.
- Excellent collaboration and communication skills across engineering, product, and partner teams.
- Proven experience mentoring senior engineers and raising technical standards.
Preferred Qualifications:
- Experience in digital advertising, RTB, or other high-volume transactional systems.
- Familiarity with OpenRTB and/or Prebid.
- Strong understanding of CI/CD workflows, infrastructure as code (IaC) patterns, and observability practices, with working familiarity of tools like Terraform, Helm, and Grafana.
- Expertise in designing and scaling RESTful APIs, including data modeling, error handling, performance tuning, and security best practices.
- Experience using AI-assisted development tools to enhance productivity.
Pursuant to any state, local ordinance, or local hiring regulations, we will consider for employment any qualified applicant, including those with arrest and conviction records, in a manner consistent with the applicable regulation.
OpenX is committed to fair and equitable compensation practices. For all applicants, the base salary range is noted above, per year + bonus + equity + benefits. A candidate’s salary is determined by various factors including, but not limited to, relevant work experience, skills, and certifications.
A summary of our benefits, which include medical, dental, vision, 401k, equity and more, can be viewed here: https://www.openx.com/company/careers/ A candidate’s salary is determined by various factors including, but not limited to, relevant work experience, skills, and certifications.
OpenX VALUES
Our five company values form a solid bedrock serving to define us as a group and guide the company. Our values remind us that how we do things often matters as much as what we do.
WE ARE ONE
We are one team. There are no exceptions. We are a group of strong and diverse individuals unified by a shared mission. We embrace challenges and win together as a team. We respect and care about our colleagues and cultivate an inclusive culture
WE ARE CUSTOMER CENTRIC
We innovate on behalf of our customers. We understand, respect, and listen carefully to our customers. We build great products to solve our customers’ problems. We manage our customers’ expectations clearly and honestly. We are a trusted partner to all of our customers - we act with integrity at all times. We care.
OPENX IS OURS
We are all owners of OpenX
We all have a voice to improve OpenX
We stake our personal and professional reputations on the excellence of our work
We are not interested in just "doing our jobs"; we take ownership to drive results
WE ARE AN OPEN BOOK
We understand and respect what each of us does. We are eager to teach and share what we know with others, both internally and externally. We are eager to learn from others and we ask questions internally and externally.
WE EVOLVE FAST
We take responsible risks and own and learn from our mistakes. We recognize and repeat success. We actively seek out and provide constructive feedback. We adapt quickly and embrace change. We tackle growth and learning with real urgency. We are endlessly curious.
OpenX TRAITS
Our three traits capture what makes a great team member at OpenX.
HUMBLE
Ideal team players are humble and demonstrate integrity. They put the team's success above their own, share credit generously, and value collective achievements. They are self-assured, open to coaching, and committed to continuous learning.
DRIVEN
Ideal team players are results-driven and motivated. They are curious, always seeking more to do, learn, and take on. As proactive problem-solvers, they take initiative without needing external motivation. They continuously think about the next steps and opportunities for improvement.
SMART
Ideal team players are smart and possess the intellectual acumen to understand the complexities of our organization and industry. They are interpersonally intelligent, good communicators, and exemplify sound judgment in their interactions across the company to foster a collaborative environment.
OpenX is committed to equal employment opportunities.
It is a fundamental principle at OpenX not to discriminate against employees or applicants for employment on any legally-recognized basis including, but not limited to: age, race, creed, color, religion, national origin, sexual orientation, sex, disability, predisposing genetic characteristics, genetic information, military or veteran status, marital status, gender identity/transgender status, pregnancy, childbirth or related medical condition, and other protected characteristic as established by law.
OpenX Applicant Privacy Policy
Applicants can review our Applicant Privacy Policy at any time by visiting the following link: https://www.openx.com/privacy-center/applicant-privacy-policy/.
Effective Date: November 21, 2024
Top Skills
C++
Go
Grafana
Grpc
Helm
Iac
Java
Kubernetes
Mcp
Rest
Rust
Terraform
Thrift
What the Team is Saying
Cassie Nufable
Senior Manager, FP&A
Ben White
Sr Principal Software Engineer
Qixuan Yu
Data Scientist II
Nathan Rideout-Cadieux
Director, Buyer Development
Cheryl Tan
Director, Account Mgmt Buyer Development
Alexa Ofsanko
Sr. Account Director
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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. We’re an independent omni-channel supply-side platform (SSP) and a global leader in supply-side targeting, transparency, and sustainability. Through our 100% cloud-based tech stack, we power advertising across CTV, app, mobile web, and desktop, enabling publishers to deliver marketers with improved performance and dynamic future-proofed solutions. With a 17-year track record of programmatic innovation, we're a direct and trusted partner of the world’s largest publishers, working with more than 130,000 premium publisher domains and over 100,000 advertisers.
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.
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OpenX Technologies Offices
Hybrid Workspace
Employees engage in a combination of remote and on-site work.
Typical time on-site:
Not Specified
