Description:

Join the Trust & Safety team at OfferUp as a Junior Software Development Engineer - Backend.
Contribute to building systems that detect and prevent fraudulent behavior in the marketplace.
Focus on maintaining community guidelines and supporting business strategies by addressing Account takeovers, Phishing, Payment chargebacks, and Prohibited Items.
Own features from concept to implementation, including writing code, analyzing metrics, and collaborating with cross-functional teams.
Work on developing scalable classifiers and tools using machine learning, data regression, and rules-based models.
Participate in on-call rotations, mentor other engineers, and drive engineering excellence within the team.

Requirements:

Must have 3+ years of professional software engineering experience, with at least 1 year dedicated to web services.
Proficiency in Java, Python, Scala, Golang, or another modern programming language with strong knowledge of object-oriented design and microservices architecture.
Experience in data analysis and translating results into business recommendations.
BS or MS in Computer Science or equivalent field.
Excellent written and spoken communication skills, fluency in English is required.

Collaborate with cross-functional teams like risk analysts, data science, and operations to design and implement new features.
Opportunity to analyze and apply solutions to detect the latest attacker techniques.
Drive engineering and operational excellence within the Trust & Safety engineering team.
Work with OfferUp-wide engineering teams to improve processes and develop best practices.
Support, mentor, and learn from other engineers on the team.
Remote position available in Chile and Colombia.