[Remote] Software Engineer, Fraud at WhatNot

San Francisco, California, United States

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$180,000 – $260,000Compensation

Senior (5 to 8 years), Expert & Leadership (9+ years)Experience Level

Full TimeJob Type

UnknownVisa

E-commerce, Biotechnology, Online MarketplacesIndustries

Requirements

Candidates should be US-based and within commuting distance of Los Angeles, San Francisco, New York, or Seattle hubs. Experience with the full development lifecycle, including ideation, scoping, prototyping, load testing, deployment, and monitoring, is required. The ability to collaborate across multiple product surfaces and operational teams, and to communicate insights through dashboards, notebooks, and written documentation, is also necessary.

Responsibilities

The Software Engineer, Fraud will design and develop systems to mitigate systemic risks and safeguard the Whatnot community. They will balance risk and user experience by monitoring the impact of protective systems. The role involves architecting event-driven pipelines for near real-time responses to high-risk behavior and continuously evolving defenses against emerging abuse patterns. This includes contributing to the ideation, scoping, prototyping, load testing, deployment, and monitoring of resilient and scalable solutions.

Skills

Fraud detection

Machine learning

Behavioral analysis

Real-time systems

Policy enforcement

Dispute resolution

Scalable infrastructure

Software engineering

WhatNot

Online marketplace for authentic collectibles

About WhatNot

Whatnot.com operates as an online marketplace dedicated to collectibles, particularly focusing on items like Funkos and FiGPiNs. The platform ensures that every collectible listed is 100% authentic through a rigorous verification process that includes hand authentication, providing trust and security for both buyers and sellers. It caters to collectors and enthusiasts who seek a reliable space to buy and sell rare and exclusive items from popular franchises such as Marvel Comics and Star Wars. Whatnot.com distinguishes itself from competitors by charging low fees on sales and offering seller protection, which guarantees prompt and secure payments. The company's goal is to create a trusted environment for the growing community of collectible enthusiasts, facilitating safe and easy transactions for unique items.

Marina del Rey, CaliforniaHeadquarters

2019Year Founded

$728.7MTotal Funding

SERIES_ECompany Stage

Consumer Software, Consumer GoodsIndustries

501-1,000Employees

Benefits

Competitive base salary and stock options

Unlimited Vacation Policy and No Meeting Holidays

Health Insurance options including Medical, Dental, Vision, Life, Short term disability & Long term Disability

Work From Home Support

Up to $500 monthly to spend within Whatnot App

Care benefits

Risks

Increased competition from TikTok Shop may impact Whatnot's market share.

The collectibles market's volatility could affect Whatnot's sales and inventory.

Expansion into new categories may dilute Whatnot's specialized brand identity.

Differentiation

Whatnot offers a unique marketplace for 100% authenticated collectible items.

The platform integrates live shopping with entertainment, enhancing user engagement.

Whatnot's partnerships with major franchises like Marvel boost its market appeal.

Upsides

Whatnot's $265M funding round supports expansion and new product categories.

The platform's collaboration with PSA enhances trust through integrated authentication services.

Rising interest in live shopping among younger demographics drives Whatnot's growth.

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