Marketplace Operations & Experimentation Specialist

Overview

Sezzle is hiring a data-driven, highly organized Marketplace Operations & Experimentation Specialist on the Marketplace team, reporting to the Product Manager for Marketplace. The role runs and tracks A/B tests and manages marketplace operations inside the Sezzle app.

What you'll do

• Set up, QA, and launch A/B tests across Marketplace features, checking targeting, variants, and tracking before launch.
• Monitor running tests, flag issues early, and call results once they reach significance.
• Keep a single source of truth for every test: what's live, who sees it, and what was learned.
• Create and manage placements, promotions, coupons, and offers across the Sezzle app.
• Set up and manage cashback programs in internal admin tools.
• Onboard new online stores into the marketplace and activate their store domains.
• Keep a clear map of which user and merchant segments see which features, placements, and offers.
• Run regular QA audits, work through user-reported issues and broken links, and set up alerts to catch problems early.
• Benchmark the shopping experience against competitors and propose new placements, deals, and offers.
• Document test plans, results, and processes, and identify workflow steps that can be automated with AI.

What you'll need

• Bachelor's degree in Computer Science, Software Engineering, Data Science, Statistics, Mathematics, or a related quantitative field.
• 1 to 3+ years of experience in operations, experimentation, or product analytics.
• Highly organized, able to run many tests and workstreams at once without anything slipping.
• Clear written and verbal communication in English with teammates and external partners.
• Strong analytical skills; comfortable with SQL and dashboards, and able to read A/B test results (lift, significance, sample size).
• Comfortable in a fast-changing environment where priorities shift.
• Detail-oriented with a QA mindset.
• Daily user of Claude or a similar AI tool to analyze data, write queries, draft docs, and automate repetitive work, with real examples to share.

Nice to have

• Experience with A/B testing or feature flag tools, such as Optimizely, LaunchDarkly, Statsig, or Firebase.
• Experience with affiliate, cashback, or advertising partnerships.
• Experience with Jira and Confluence.
• Experience with mobile apps and product analytics tools, such as Amplitude, Mixpanel, or similar.

Details

• Location: Brazil, Remote.
• Salary range: $2.000 - $2.666 per month (gross, USD).
• Full-time.