Back-End Developer (Swedish Ad Platform)

Job description

Company Description Are you a skilled Back-End Developer with a passion for building scalable, high-performance platforms? Join Sigma Software and contribute to the transformation of a global AdTech product into a modern, API-driven architecture. This is a Middle/Senior-level role with a remote-friendly setup, giving you flexibility while working with cutting-edge technologies. We at Sigma Software value engineering excellence, innovation, and collaboration, offering opportunities to work with world-class customers and impactful projects. Why join us? You will work on a platform trusted by top-tier publishers, gain exposure to advanced serverless architectures, and be part of a team that encourages professional growth and continuous learning. 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,...