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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.

We’re seeking a driven and experienced Software Engineer with strong full-stack expertise to help launch a new product within our platform. You’ll join a talented, remote-first US team and play a key role in developing self-service tools that simplify and automate complex workflows for media activation.

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.

What our team does:
Our team is responsible for delivering a new product within OpenX’s next-generation platform to help users activate their media more effectively. We focus on building scalable APIs and intuitive interfaces that give users access to our rapidly growing suite of AI-driven decisioning and optimization tools.

Key Responsibilities:
Lead the design and development of self-service APIs and user interfaces for a new 0→1 product
Leverage existing platform components to deliver scalable, performant and user-friendly solutions.
Partner with data science and product teams to turn advanced optimization algorithms into intuitive tools for media activation.
Facilitate collaborative discussions with team members and stakeholders to identify and deliver the best solutions to user and business problems.
Own end-to-end feature delivery, including architecture, implementation, testing, documentation, rollout, and adoption.
Promote engineering excellence through constructive code reviews, mentoring, and driving improvements in code quality, architecture, and platform best practices.

Required Qualifications:
8+ years of full-stack development experience with strong proficiency in Python for backend development and modern frontend technologies such as React and TypeScript.
Expertise in building RESTful APIs, including data modeling, error handling, and performance optimization.
Experience working with both SQL and NoSQL databases, including schema design, querying, and tuning for performance and scalability.
Experience with modern test frameworks such as pytest, Cypress and Playwright
Proven ability to launch new products, with the ability to navigate ambiguity and break down complex problems into clear milestones.
Strong collaboration and communication skills, with experience working closely with product and design teams to deliver user-facing features.

Preferred Qualifications:
Experience working on SaaS platforms with multi-step workflows, complex data models, or user-facing configuration tools.
Experience in digital media, marketing technology, or advertising technology
Familiarity with design systems, reusable component libraries, or frontend architecture at scale.
Experience with GraphQL APIs and related tooling.
Experience working in cloud-native environments using Kubernetes, Docker, and CI/CD pipelines. (ask us about our migration to Google Cloud Platform!)
Familiarity with AI-assisted development tools like Cursor and GitHub Copilot.
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