Senior Software Engineer (AdTech)

Job description

Company Description Are you a seasoned engineer passionate about building scalable, high-performance systems? This Senior-level role offers the opportunity to work remotely with talented teams across Europe, Ukraine, and LATAM. At Sigma Software, we deliver cutting-edge solutions for global customers, combining technical excellence with a service-minded approach. In this role, you will join a distributed team to architect and evolve an advanced Ads platform, contributing to both innovation and stability. Why join us? You will work on complex, high-impact systems, collaborate with international experts, and enjoy the freedom to shape architecture and technical patterns that drive long-term success. CUSTOMER We partner with a leading company in the AdTech space, delivering high-performance, scalable solutions that empower advertisers to manage campaigns, optimize targeting, and analyze results in real time. The Customer values innovation, reliability, and long-term collaboration, and operates globally with distributed teams in Europe, LATAM, and other regions. PROJECT The project focuses on building and evolving core systems for an advanced Ads platform integrated into a product for the interior decor industry. This product enables users to preview and visualize home items before purchase, enhancing shopping experiences both online and in-store. Job Description Design, develop, and maintain APIs and services supporting ad campaign management, targeting, delivery, attribution, and reporting Architect scalable, reliable, and high-performance distributed systems Optimize systems for high-throughput and low-latency event/data processing Drive architectural decisions and establish development patterns Collaborate with distributed teams to ensure seamless integration and delivery Mentor and guide other engineers, fostering technical excellence Ensure code quality, maintainability, and alignment with long-term product goals Qualifications At least 5 years of commercial experience in building scalable, high-performance systems Hands-on experience with AdTech solutions such as DSP, SSP, ad exchange, prebid, Google Ad Manager, or openRTB Strong proficiency in Python, preferably with the Django framework Solid knowledge of computer science fundamentals, including data structures, algorithms, and distributed systems Good understanding of distributed system architecture with a focus on data availability, reliability, and performance Practical experience with Kubernetes, PostgreSQL, and AWS Upper-Intermediate level of English WILL BE A PLUS: Experience with dbt and Redshift Familiarity with interior decor industry solutions Additional Information PERSONAL PROFILE Attention to detail and quality Excellent communication skills Leadership mindset, proactiveness