Front-End Developer (Swedish Ad Platform)

Job description

Company Description Are you passionate about building high-performance front-end solutions? Join Sigma Software as a Middle Front-End Developer and help shape the future of cutting-edge AdTech products. This hybrid role is based in Wrocław, Poland, offering flexibility to work partially from the office. We at Sigma Software partner with a Sweden-based AdTech leader to create scalable, API-driven platforms used by globally recognized publishers. Why join us? You’ll work with modern technologies, contribute to architectural transformation, and grow your skills in a collaborative, innovative environment. CUSTOMER: Our Customer is a Sweden-based AdTech company specializing in advanced self-serve advertising platforms that automate direct transactions between advertisers and major global publishers. Their technology removes traditional friction in ad sales by enabling automation, transparency, and operational efficiency at scale. Platforms are trusted by internationally recognized publishers including TripAdvisor, Bloomberg, The Washington Post, Opera, and Dow Jones, handling millions of transactions worldwide. PROJECT: The project is a strategic architectural transformation toward a Pl...