Senior Backend Engineer (AdTech)

About the role

We are looking for a Senior Backend Engineer to architect and build the core systems of a next-generation AdTech platform that embeds products directly into visual experiences. You will design high-throughput, low-latency services for campaign delivery, targeting, attribution, and partner integrations using Python, Django, Kubernetes, and AWS. This is an early-stage initiative where senior engineers define the technical direction and system architecture from the ground up.

What you will do

• Architect, build, and evolve core systems for the Ads platform;
• Design APIs and services supporting campaign management, targeting, delivery, attribution, and reporting;
• Build and optimize high-throughput, low-latency systems processing large volumes of events and data;
• Own critical systems end-to-end, including design, implementation, deployment, monitoring, and ongoing improvements;
• Drive architectural decisions and establish patterns that support scalability, reliability, and developer productivity;
• Collaborate closely with product, data, and partner teams to translate business requirements into robust technical solutions;
• Provide technical leadership through design reviews, system discussions, and mentoring other engineers;
• Contribute to engineering best practices, documentation, and long-term platform vision;
• Participate in hiring and help grow a strong, high-performing team.

Must haves

• 3–4 years of software development experience building scalable systems;
• Experience with AdTech;
• Strong understanding of computer science fundamentals (algorithms, data structures, networking, databases);
• Proven experience designing and scaling distributed systems focusing on performance, observability, and fault tolerance;
• Experience with Python / Django, or other backend programming languages;
• Experience with Kubernetes, PostgreSQL, and AWS;
• Strong architectural instincts and ability to make high-impact technical decisions;
• Ability to mentor engineers and guide teams through ambiguity;
• Strong ownership mindset with ability to drive initiatives and deliver impact;
• Excellent communication and cross-functional collaboration skills;
• Comfort working in a fast-paced, high-autonomy, product-driven environment;
• Upper-intermediate English level.

Nice to haves

• Experience with e-commerce and catalog management;
• Familiarity with Python, Django, Kubernetes, PostgreSQL, AWS or similar technologies;
• Strong experience with complex ETL flows and high-throughput systems.