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SeniorFull-timePythonJavaAWSMySQLElasticsearchMachine LearningData ScienceTensorFlowPyTorchGo
Salary Range
$86,190 - $116,610 /year
This salary is estimated based on similar roles. The actual salary may vary.
About the Role
Faire is looking for a Senior Backend Engineer to join their Ads team, which is building the next generation of marketplace intelligence. This role involves taking ownership of core algorithms and infrastructure that shape how ads and search systems decide what to show, to whom, and at what price.
Key Responsibilities
- →Own critical services within our Kotlin-based backend, driving reliability, scalability, and low-latency performance across billions of ad and search events.
- →Design and evolve large-scale retrieval, ranking, and pricing systems to optimize relevance, performance, and marketplace efficiency.
- →Develop auction-based delivery systems and scoring pipelines that balance advertiser ROI with retailer experience.
- →Collaborate cross-functionally with Data Science to prototype, evaluate, and productionize machine learning models and their training workflows.
- →Build and operate online inference services with clear latency and reliability SLOs.
- →Mentor engineers and contribute to team best practices.
Requirements
- ✓5+ years in backend systems, including 2+ years in designing, deploying, and scaling ML inference and online serving systems.
- ✓Proficiency in Kotlin, Java, or similar object-oriented languages.
- ✓Hands-on experience with model training pipelines and operating production online inference/serving.
- ✓Strong communication skills and a track record of partnering with cross-functional stakeholders.
- ✓Curiosity and a drive to understand complex market dynamics.
- ✓Bachelor’s degree in Computer Science/Engineering or equivalent industry experience.
