Senior Backend Engineer (AdTech) ID52365

AgileEngine•Downey, CA

1d•Hybrid

About The Position

Join as a Senior Backend Developer (AdTech) to help build a next-generation advertising platform powered by scalable backend systems, real-time data processing, and distributed architectures. You will work with technologies such as Python, Django, Kubernetes, PostgreSQL, and AWS while contributing to technical direction and engineering standards in an early-stage environment. This role offers strong ownership, collaboration with experienced engineers, and the opportunity to create products used by millions of people.

Requirements

5 years of software development experience building scalable systems (backend programming languages/frameworks, e.g. Java, .NET, Python, Node.js etc);
Experience with AdTech;
Experience with DSPs, SSPs, ad exchanges, affiliate programs, Prebid.js, Prebid Server, Google Ad Manager, Amazon UAM/TAM, OpenRTB, identity and addressability solutions, as well as ad operations workflows;
Deep understanding of computer science fundamentals (algorithms, data structures, networking, databases);
Proven experience designing and scaling distributed systems focusing on performance, observability, and fault tolerance;
Strong architectural instincts and the ability to make high-leverage technical decisions that impact multiple teams and systems;
Demonstrated ability to influence and mentor senior engineers, guide teams through ambiguity, and elevate engineering practices across the board;
Exceptional ownership mindset — you drive initiatives forward, raise the bar, and deliver lasting impact;
Excellent communication and cross-functional collaboration skills;
Comfortable operating in a fast-paced, high-autonomy, product-driven environment;
Experience with e-commerce and catalog management is preferred;
Familiarity with Python, Django, Kubernetes, PostgreSQL, AWS is strongly preferred, but deep expertise in analogous systems and a willingness to learn are welcome;
Upper-intermediate English level.

Nice To Haves

Strong experience with complex ETL flows and high-throughput systems is highly preferred.

Responsibilities

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.