Full-Time

Senior Sdet – Platform & Devex

Posted on 8/21/2025

OpenX

OpenX

501-1,000 employees

Programmatic ad marketplace with real-time bidding

Compensation Overview

$161.5k - $185k/yr

+ Bonus + Equity

Remote in USA

Remote

Category
QA & Testing (1)
Required Skills
JavaScript
UI/UX Design
TypeScript
DevOps
Requirements
  • 8+ years of test automation experience
  • Proficiency in JavaScript/TypeScript
  • Experience with full-stack testing, including both UI/UX and API layers
  • Willingness to work with new programming languages and technologies
  • Ability to improve, debug, and maintain an automation framework codebase
  • Strong knowledge of software development methodologies, testing techniques, and quality assurance principles
  • Hands-on experience designing and maintaining complex CI/CD pipelines using tools such as Google Cloud Build, Spinnaker, GitHub Actions, or similar, including multi-environment build and deployment workflows
  • Proven ability to advance TestOps and DevOps maturity across teams by implementing scalable build, test, and release automation strategies that improve release velocity and reliability
  • Excellent troubleshooting skills for diagnosing and resolving complex issues
  • Demonstrated leadership and mentoring abilities, with a track record of driving continuous improvement and innovation
  • Excellent collaboration skills, with a focus on improving developer experience
Responsibilities
  • Work in a focused and nimble team that collaborates on common problems across products and across focus areas.
  • Own components, processes, and workflows that demand professionalism, excellent communication, teamwork, and documentation skills.
  • Monitor and maintain CI pipelines, and collaborate on CD enablement.
  • Conduct root cause analysis of issues and provide solutions for better coverage and maintainability.
  • Effectively communicate and participate as a crucial member of both the DevEx team and QA organization.
  • Participate in the design and implementation of automation strategies, frameworks, and infrastructure.
  • Set and drive coding standards.
  • Stay up-to-date with emerging technologies, tools, and trends in test automation, development, and CI/CD.
  • Focus on TestOps and DevOps practices to support testing infrastructure, developer productivity, and deployment workflows.
  • Collaborate closely with engineering teams to enhance the developer experience and streamline software delivery.
  • Apply and explore AI tools and test strategies to improve automation and testing efficiency.
Desired Qualifications
  • Proficiency in Python or Go
  • Google Cloud Platform, Terraform, Kubernetes, and Docker
  • Proven ability to scale SDLC processes and automation practices across multiple teams
  • Hands-on experience with modern test frameworks such as Pytest, Cypress, Go test, or Playwright
  • Familiarity with advertising technologies and the digital advertising ecosystem
  • Background in application development, with an understanding of developer workflows and integration points
  • Knowledge of strategies and frameworks for testing AI and machine learning models

OpenX is a programmatic advertising platform that connects publishers, advertisers, and app developers to buy and sell digital ad space in real time. Ads are traded through an auction-like marketplace where advertisers bid for impressions, and the winning bids deliver ads on display, video, or mobile formats. The platform uses real-time bidding to match advertiser goals with available inventory, aiming to maximize publishers’ revenue while helping advertisers reach their target audiences efficiently. Revenue comes from transaction fees on ad placements and premium services such as advanced analytics and audience targeting. OpenX emphasizes marketplace quality and transparency and uses data and technology to combat ad fraud and improve ad performance. Its goal is to provide a reliable, efficient marketplace that improves outcomes for both publishers and advertisers.

Company Size

501-1,000

Company Stage

Series E

Total Funding

$75.5M

Headquarters

Pasadena, California

Founded

2007

Simplify Jobs

Simplify's Take

What believers are saying

  • CTV ad spend grows 14% in 2026, boosted by OpenX Attention Targeting.
  • Cookieless Deal Library and ID5 partnership increase Safari reach 58%.
  • Executive hires like Fisher-Brown strengthen EMEA and APAC expansion.

What critics are saying

  • Google deprecates cookies by 2026 end, crippling OpenX bidding.
  • Magnite's 25% CTV share steals OpenX's 8% inventory in 12 months.
  • Amazon DSP captures 35% programmatic spend, diverting OpenX revenue in 6 months.

What makes OpenX unique

  • OpenX launches first real-time attention targeting for CTV with TVision.
  • OpenX introduces curated political ad platform with Givsly values-based targeting.
  • OpenX pioneers Impact PMPs donating 5% media spend to buyer-chosen nonprofits.

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Benefits

Professional Development Budget

Growth & Insights and Company News

Headcount

6 month growth

0%

1 year growth

0%

2 year growth

-1%
The Associated Press
Apr 13th, 2026
OpenX rebrands as The Intelligent SSP to simplify AI-driven advertising with cloud-native infrastructure

OpenX, a supply-side platform, has unveiled a rebrand positioning itself as "The Intelligent SSP" with a new logo and visual identity. The company aims to simplify digital advertising by addressing industry complexity that has emerged over the past decade. OpenX introduced a streamlined product architecture comprising OpenXSelect, OpenXBuild, OpenXControl and OpenXExchange, built on three pillars: quality, performance and adaptability. The platform features direct publisher relationships, AI-powered curation and a proprietary supply-side identity graph delivering privacy-forward signals. As one of the largest SSPs globally, OpenX operates on fully cloud-based infrastructure designed to support AI-driven, agent-based buying across CTV, mobile and desktop formats. The rebrand reinforces the company's commitment to transparent supply paths and rigorous inventory standards.

The Associated Press
Mar 11th, 2026
OpenX and TVision launch first real-time attention targeting for CTV advertising

OpenX Technologies has launched OpenX Attention Targeting, the first supply-side platform solution enabling advertisers to target high-engagement CTV inventory in real time. The feature, powered by TVision's attention measurement technology and available exclusively through OpenXSelect, allows pre-bid targeting based on predictive attention scores. The solution combines data from TVision's in-home viewer panel with OpenX's real-time bidstream signals, including time of day, device type and viewing duration. Advertisers can layer attention signals with audience and contextual targeting across 231 million monthly unique users via OpenX's identity graph. The integration transforms attention measurement from a post-campaign metric into a real-time optimization tool. CTV advertising spend is projected to grow nearly 14% this year, driving demand for greater transparency and performance in the fragmented market.

Business Wire
Feb 23rd, 2026
OpenX launches curated political ad platform with values-based targeting for 2026 US midterms

OpenX Technologies has launched a political advertising platform for the 2026 US midterm elections, offering prioritised access to curated, political-approved inventory across connected TV, mobile and web. The platform enables campaigns to go live in under 24 hours with ZIP code-level targeting. The company announced a partnership with Givsly, integrating first-party data from over 500 nonprofits to target voters based on shared values such as environmental protection and women's empowerment. This approach addresses challenges posed by increasingly unreliable traditional political data. The platform features guaranteed access to pre-vetted publishers including Newsweek, Plex and Scripps, with real-time voter reach reporting by county and ZIP code. OpenX provides turnkey political packages optimised for election windows and compatible with major demand-side platforms.

Business Wire
Feb 11th, 2026
OpenX appoints Natalie Fisher-Brown as EMEA buyer development VP

OpenX Technologies has appointed Natalie Fisher-Brown as Regional Vice President for EMEA Buyer Development. She will lead buy-side sales and account management across the region, focusing on strengthening strategic markets and developing senior-level relationships with agencies and brands. Fisher-Brown brings over 20 years of experience from senior roles at Criteo, Yahoo, Verizon and WeTransfer, where she most recently served as Global Head of Sales. Her appointment follows recent hires in France and Germany as OpenX expands its European presence. The move comes as EMEA advertisers navigate fragmented supply paths and heightened expectations around transparency and sustainability. OpenX operates as an independent omnichannel supply-side platform, working with over 130,000 premium publisher domains and 100,000 advertisers globally.

PR Newswire
May 23rd, 2024
Global Icons Eric Cantona, Karen Carney, Mary Earps, Draymond Green, Deandre Hopkins, Flau'Jae Johnson, Jason Kelce, Travis Kelce And More Confirmed To Attend Stagwell (Stgw) Sport Beach 2024

NBA 10-time All-Star Carmelo Anthony to host Cannes Lions International Festival of Creativity's first-ever Wine & Spirits Festival at Sport BeachGatorade, The Kansas City Chiefs, Snapchat, BOSS and more world-class brands to deliver premier experiences at Sport BeachNEW YORK and CANNES, France, May 23, 2024 /PRNewswire/ -- Stagwell (NASDAQ: STGW), the challenger network built to transform marketing, announced today a new roster of athletes and brand partners confirmed to activate at SPORT BEACH 2024 (June 17-20), the flagship sports business destination at the Cannes Lions International Festival of Creativity (Cannes Lions)."Our attendees can expect Sport Beach to be a different kind of experience at Cannes Lions." - Beth Sidhu Post this Global Icons Eric Cantona, Karen Carney, Mary Earps, Draymond Green, DeAndre Hopkins, Flau'jae Johnson, Jason Kelce, Travis Kelce and More Confirmed to Attend Stagwell (STGW) Sport Beach 2024As sports, business, and culture increasingly converge, Stagwell will host conversations with athletes and brands working together to connect with consumers in an authentic way. Four-time NBA champion and media personality, Draymond Green, will be featured in programming. Manchester United legend Eric Cantona, former professional soccer player Karen Carney, professional soccer player Mary Earps, football player DeAndre Hopkins, basketball player Flau'jae Johnson, pilates instructor Amanda Kassar, Super Bowl champion and seven-time Pro Bowl honoree Jason Kelce, two-time Super Bowl champion and star NFL tight end Travis Kelce, and dancer and entertainment icon Jess King will also participate in featured programming and appearances. These athletes speak to several growing trends in sports and business, including the integration of sporting icons into the global apparel business, the growth of women's sports and the proliferation of athlete-driven media."Sport Beach puts athletes and marketers together for real conversations – and serious play," said Stagwell's Chief Brand and Communications Officer Beth Sidhu. "Our attendees can expect Sport Beach to be a different kind of experience at Cannes Lions that capitalizes on the many intersections within sport, creativity and culture."Event HighlightsWine & Spirits Festival : NBA 10-time All-Star Carmelo Anthony and business partner Asani Swann will host the first-ever Wine & Spirits Festival at Cannes Lions on Thursday, June 20 , featuring tastings of their flagship wine brand VII(N) The Seventh Estate, alongside: Casa Azul Tequila Soda from two-time Super Bowl champion Travis Kelce Garage Beer by Super Bowl champions and brothers Jason Kelce and Travis Kelce La Fête du Rosé from co-owner and Golden State Warriors point guard Chris Paul Le Portier premier cognac from NFL Hall of Famer Shannon Sharpe The Paloma by Don Julio , the official cocktail of Sport Beach 2024: NBA 10-time All-Star and business partner will host the first-ever Wine & Spirits Festival at Cannes Lions on , featuring tastings of their flagship wine brand VII(N) The Seventh Estate, alongside: Pickleball with the Pros : Patrick Mouratoglou , legendary tennis coach of Serena Williams and current coach of Danish star Holger Rune, and Recess Pickleball, will each lead a pickleball clinic at Sport Beach ahead of a team tournament sponsored by Snapchat.: , legendary tennis coach of and current coach of Danish star Holger Rune, and Recess Pickleball, will each lead a pickleball clinic at Sport Beach ahead of a team tournament sponsored by Snapchat. Podcast Recordings : Sport Beach will host recordings of some of today's most popular podcasts including: "A Touch More" with Sue Bird and Megan Rapinoe "New Heights with Jason and Travis Kelce" "Nightcap" with Shannon Sharpe and Chad "Ochocinco" Johnson: Sport Beach will host recordings of some of today's most popular podcasts including: AR Comes to Sport Beach: Stagwell's ARound, a shared augmented reality platform for teams and stadiums, will showcase a new interactive experience at Sport Beach that unites fans and brands for an immersive and engaging event.AthletesEric Cantona (soccer) – Qualcomm Technologies, Inc

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