Software Development Engineer II (Remote @ Colombia)

The OfferUp Connect team builds services that enable buyers and sellers to interact, including messaging, notifications, and subscriptions. As a Software Development Engineer II, you'll design, build, and deploy backend services and event-driven pipelines, integrate with third-party platforms, and own features end-to-end.

Responsibilities:

• Design, build, and deploy backend services and event-driven pipelines for messaging, notifications, location, and subscriptions
• Improve the reliability, latency, and delivery rates of high-volume messaging and notification systems
• Integrate with and operate third-party platforms such as Braze, Amazon Pinpoint, Apple and Google push services, and app store billing
• Own features end-to-end: plan, design, develop, deploy, measure, and iterate
• Break down complex engineering problems into achievable tasks and deliver them within committed timeframes
• Work collaboratively with cross-functional teams to design and implement new features
• Contribute to A/B tests and use experimentation results to decide what ships
• Actively participate in code reviews and enforce good patterns, testing, and edge-case handling
• Coach and mentor junior team members, new hires, and interns
• Create shared components, utilities, and services that improve team velocity across the stack
• Maintain and improve the runbooks, alerting, and monitoring for the features you ship
• Participate in a reasonable on-call rotation with the rest of the team
• Use AI coding tools to increase daily development velocity and code quality
• Become a subject matter expert in one or more of the team's sub-domains: messaging, notifications and campaigns, location, or subscriptions and promotions

Requirements:

• 2+ years of professional software engineering experience
• Demonstrated ability to own the delivery of multiple features end-to-end
• Strong coding skills in Java, with a working understanding of microservices and distributed-systems fundamentals
• Good knowledge of data structures and object-oriented design
• Working knowledge of asynchronous, event-driven systems
• Hands-on experience using AI coding tools in a real engineering workflow
• A habit of following good coding patterns, writing appropriate tests, considering trade-offs, and seeking out edge cases
• Comfortable giving and receiving feedback in code reviews
• A bias toward shipping, learning from production, and iterating quickly
• An insatiable desire and ability to learn
• BS or MS in Computer Science, or equivalent practical experience