Junior Software Development Engineer - Backend, Trust and Safety (@Remote, Chile and Colombia)Remote, Chile and ColombiaAt many organizations, your role begins and ends with the code. On our team, we’re different. You own a feature from concept to fruition. Your responsibilities will include everything from writing well-architected and thoroughly tested code to rolling out the feature by analyzing metrics. You also get to take ownership beyond your technical area by working with cross-functional team members.As a backend developer, you will build highly scalable systems to detect and prevent fraud and continuously improve our engineering/operational excellence.This role is only available outside the US and not available to any individual based within the US or any US territory.Here’s more of what you will get to do:Work collaboratively with cross-functional teams (risk analysts, data science, and operations) to design and implement new featuresAnalyze the latest attacker techniques and apply solutions to detect them holistically and stop them proactivelyDrive engineering and operational excellence across the Trust & Safety engineering teamCollaborate with OfferUp-wide engineering teams to improve processes, surface common pain points, develop solutions, and evangelize best practicesDevelop highly scalable classifiers and tools leveraging machine learning, data regression, and rules-based modelsIdentify when to replace and when to rebuild legacy systemsParticipate in reasonable on-call rotations with the rest of the teamSupport, mentor, and help other engineers on the teamYou’ll thrive in this role if you have:3+ years of professional software engineering experience, of which at least 1 was devoted to web servicesExperience performing data analysis and translating the results into business recommendationsStrong coding skills in Java, Python, Scala, Golang or any other modern programming language coupled with strong knowledge in object-oriented design and microservices architectureBS or MS in Computer Science, Computer/Software Engineering, Information Systems/Technology, Information Science, or a related disciplineExcellent communication skills, both written and spoken (fluency in English required)Helpful, but not required:Experience with Identity, authentication, and authorization systemsExperience with anomaly detection, bot detection, machine learning, pattern recognition and/or data miningExperience in building microservicesExperience with cloud infrastructure AWSAbout OfferUp:OfferUp is dedicated to creating the simplest and most trusted way for people to buy, sell, and connect in their local communities. One of the top local marketplace apps for local buyers and sellers in the U.S., OfferUp makes it easy for people to discover more of what they need—from great deals and secondhand goods to jobs, services, home rentals, and more—right in their own communities. Our trusted platform empowers millions to connect, thrive, and move life forward.Available on iOS and Android, OfferUp has consistently ranked among the top shopping apps. Founded in 2011 and based in Bellevue, WA, OfferUp serves local markets nationwide and was used by more than 1 in 6 adults in the U.S. in 2024. OfferUp is backed by leading investors, including Andreessen Horowitz, Warburg Pincus, GGV Capital, T. Rowe Price, and Coatue Management.More About OfferUp At a Glance:Top 10 Shopping app in the App Store and Google Play Store for three years15%+ of adults in several major markets use OfferUp every month (LA, Miami, Phoenix, Seattle, Las Vegas, Riverside, Orlando)OfferUp works directly with nearly 2000 US law enforcement agencies to build trust in local communitiesOfferUp is unleashing the power of local, and we’ve built a dynamic team to do it. To learn more about working at OfferUp, check out https://about.offerup.com/peopleOfferUp provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, disability, or genetics. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, transfer, leaves of absence, compensation, and training.OfferUp expressly prohibits any form of workplace harassment based on race, color, religion, gender, sexual orientation, gender identity or expression, national origin, age, genetic information, disability, or veteran status. Improper interference with the ability of OfferUp’s employees to perform their job duties may result in discipline up to and including discharge. #J-18808-Ljbffr