Senior Backend Engineer - Ads jobs in United States
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Faire · 1 day ago

Senior Backend Engineer - Ads

positionToronto, Ontario, Canada
timeFull-time
remoteHybrid
senioritySenior Level
money$156K/yr - $214K/yr
date5+ years exp

Faire is an online wholesale marketplace focused on empowering independent retailers globally. As a Senior Backend Engineer, you will take ownership of core algorithms and infrastructure for ad and search systems, collaborating with Data Science and Infrastructure teams to enhance marketplace efficiency and customer experience.

E-CommerceMarketplaceRetailRetail TechnologyWholesale
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Comp. & Benefits

Responsibilities

Design and evolve large-scale retrieval, ranking, and pricing systems to optimize relevance, performance, and marketplace efficiency
Collaborate with the Data Science and Infrastructure teams to develop auction-based delivery systems and scoring pipelines that balance advertiser ROI with retailer experience
Own critical services within our Kotlin-based backend, driving reliability, scalability, and low-latency performance across billions of ad and search events
Measure and iterate on system performance, using experimentation and analytics to guide continuous improvement
Mentor engineers and contribute to team best practices in design reviews, performance tuning, and system architecture

Qualification

KotlinJavaBackend systemsDistributed systemsPerformance optimizationAd delivery systemsRetrieval/ranking pipelinesPythonMySQLAWSCuriosityCommunication

Required

5+ years in backend systems, including 2+ years working on large-scale ad delivery, auction mechanics, retrieval/ranking pipelines, or pricing optimization systems
Proficiency in Kotlin, Java, or similar object-oriented languages; comfort with distributed systems, service design, and performance optimization
Strong communication skills and a track record of partnering with cross-functional stakeholders, from DS to PM, to deliver complex systems
Curiosity and a drive to understand complex market dynamics; passion for applying data and algorithms to real-world business problems
Bachelor's degree in Computer Science/Engineering or equivalent industry experience

Benefits

Equity
Benefits

Company

Faire

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Faire is a marketplace and wholesale platform that helps retailers find and buy wholesale merchandise for their stores.
dateFounded in 2017
location
San Francisco, California, USA
people-size1001-5000 employees
web-link
https://www.faire.com

Funding

Current Stage
Late Stage
Total Funding
$1.71B
Key Investors
WCM Investment ManagementShopifySequoia Capital
2025-11-17Secondary Market
2023-09-27Corporate Round
2022-05-10Series G· $416M

Leadership Team

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Max Rhodes
Co-founder and CEO
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Daniele Perito
Board Member & Co-Founder
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Recent News

Crunchbase News
Exclusive: Cambio Lands $18M At $100M Valuation For AI-Powered Commercial Real Estate Software
2026-01-22
Digital Commerce 360
CPGIO adds five retail marketplaces as brand partners
2025-12-31
PR Newswire
CPGIO Expands Digital Retail Footprint with Strategic Marketplace Launches Across Nordstrom, Chewy, Lowe's, Faire, and Best Buy
2025-12-30
Company data provided by crunchbase