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Senior Software Engineer, Data Infra - Moloco Ads

Moloco

$184,000 - $230,000
Oct 30, 2025
Seattle, WA, US
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Moloco builds and scales the foundational data infrastructure that powers Moloco's advertising platform, requiring design, development, and optimization of distributed data systems for real-time and batch processing to ensure reliable and low-latency delivery of data across the ads ecosystem.

Requirements

  • 5+ years of software engineering experience with one or more modern languages (Java, Kotlin, Go, C++, C, or Python).
  • Proven experience designing and building large-scale distributed systems and backend services.
  • Hands-on experience with data processing frameworks such as Apache Beam, Dataflow, or Spark, and orchestration tools like Airflow.
  • Strong understanding of cloud infrastructure (GCP, AWS, or Azure) and data storage technologies (BigQuery, Bigtable, Redis, GCS, Kafka, Pub/Sub).
  • Experience with Feature Infra / Feature Store architecture and operations.
  • Experience in Identity Graph design and construction to enhance user signal quality.
  • Experience working with Petabyte-scale data and high-availability systems.

Responsibilities

  • Design and build large-scale distributed systems for data ingestion (Petabyte-scale), transformation, and serving.
  • Partner with ML and Serving teams to support feature engineering workflows, connecting offline data to serving systems.
  • Contribute to the evolution of Feature Infra / Feature Store, ensuring scalability, discoverability, and consistency of feature data.
  • Collaborate on Identity Graph construction to unify user and device identifiers for more effective signal enrichment and targeting.
  • Improve system observability, resilience, and performance in high-throughput, low-latency environments.
  • Mentor engineers and help define best practices for data and backend engineering.

Other

  • Demonstrated experience delivering impactful projects through collaboration with cross-functional teams (Product, ML, Data Science).
  • Deep familiarity with AdTech or Machine Learning infrastructure domains.
  • Creating a diverse workforce and a culture of inclusion and belonging is core to our existence.
  • Moloco is an equal opportunity employer.