OP
OpenX· HQ in 888 East Walnut Street, Pasadena, CA 91101, US

Senior Test Automation Engineer IV

Location: Krakow · Category: Engineering & Development · Seniority: Senior · Posted: September 1, 2026 · Verified: Sep 17, 2026

Role Overview & Description

This senior SDET role focuses on building and maintaining test automation frameworks for TypeScript-based frontend applications and API testing within the Marketplace platform team. The engineer will take ownership of test frameworks and approaches used across the organization, working with Playwright, React, Java, Python, and CI/CD tools like Spinnaker in a cloud-native environment.
Source & Transparency: This position was structured directly from the publicly accessible career portal of OpenX. Details on the employer’s original job posting are authoritative. Polaris7 charges no placement fees and conducts no candidate screening.

About the company

OP

Independent SSP and ad exchange for premium programmatic inventory.

Similar Positions in DACH

Related roles across advertising, media, and data

Verified 3d agoMünchen, RemoteRemoteEngineering & DevelopmentSenior

The Senior C++ Engineer develops and maintains high-performance C++ components for Tracify's tracking and attribution platform, focusing on precision, transparency, and data privacy compliance. The role collaborates with a cross-functional team to build scalable solutions for marketing analytics.

Verified 1d agoBerlinEngineering & DevelopmentMid-Level

This role owns the acquisition experimentation surface at Peec AI, building landing pages, pricing pages, and programmatic page systems. The engineer runs experiments end-to-end, builds feature flag infrastructure, and ensures conversion measurement is trustworthy. Requires production React/TypeScript, SQL fluency, and experience with programmatic SEO and experimentation platforms.

Verified 2d agoMunichEngineering & DevelopmentSenior

This Senior Backend Engineer role owns backend workstreams in the Media Planning team, focusing on the media allocation engine, Kafka event-driven integration, and DocuSign approval flows. The engineer will take end-to-end ownership of technical topics, extend event-driven contracts with Order Management, and contribute to a federated GraphQL backend architecture, requiring 6+ years of TypeScript and Node.js experience in lean startup environments.

Verified 4d agoBerlin, Mobiles Arbeiten (Deutschland)Engineering & DevelopmentMid-Level

This role involves operating modern cloud environments reliably, with hands-on work on stable, secure, and scalable cloud systems. The engineer will have high ownership and short decision paths within a small technical team.

More Positions at OpenX

3 more open roles

Verified 2d agoMunichSales & Business DevelopmentDirector

This role leads buyer development for the DACH region, focusing on growing advertiser and agency demand for OpenX's programmatic advertising marketplace. The Director will drive strategic partnerships and revenue growth within the German-speaking market.

Verified 2d agoUS - RemoteRemoteMarketing & GrowthMid-Level

This temporary role produces motion graphics and video content for OpenX's marketing and brand initiatives. The editor will create engaging visual assets for campaigns, product launches, and corporate communications using industry-standard design tools.

Verified 2d agoUS - RemoteRemoteMarketing & GrowthIntern

This internship supports the design team on brand identity projects across print, digital, and interactive experiences. Responsibilities include creating graphic design content for marketing collateral, assisting with design audits, conducting design research, photo editing, and expanding the photography and brand library. The role requires proficiency in Adobe Creative Suite and Figma, and reports to the Lead Designer.