Junior Software Development Engineer

About the role:This is an exciting opportunity to work on systems that drive the end-user experience and support various technical teams across the organization. You will gain hands‑on experience solving unique challenges in a large‑scale mobile marketplace environment while learning from experienced engineers.We are looking for a Software Development Engineer I to join our Cloud Engineering team. This team is tasked with ensuring scalability and reliability for all backend services and keeping the SDLC running.What we love about this role:Scale & Impact: You will work on systems that drive the end-user experience and support various technical teams across the organization.Hands‑on Learning: Gain hands‑on experience solving unique challenges in a large‑scale mobile marketplace environment.Mentorship: Accelerate your growth by learning directly from experienced engineers.In this role, you will:Contribute to the design, development, and maintenance of OfferUp's core applications and services.Here’s more of what you will get to do:Implement new features and modifications to existing services under the guidance of senior engineers.Write clean, well‑tested, and maintainable code for core backend services or user‑facing applications.Participate actively in code reviews to learn best practices and ensure code quality.Assist in debugging, troubleshooting, and providing operational support for production systems.Collaborate with cross‑functional teams (Product, Design, QA) to understand requirements and deliver technical solutions.Focus on continuous learning, researching new technologies, and understanding the system architectureYou’ll thrive in this role if you have:Experience: 1-2 years of professional software development experience, or strong internship/project experience.CS Fundamentals: Foundational understanding of computer science principles, data structures, and algorithms.Communication: Ability to communicate technical information effectively to technical and non‑technical audiences.Coding Skills: Proficiency in at least one object‑oriented language, such as Java, Python or TypeScript, and familiarity with scripting languages, SQL, etc.Dev Lifecycle: Experience or coursework with developing, debugging, and testing software applications.Education: Bachelor's degree in Computer Science or a related Engineering field required.Helpful, but not required:Familiarity with building software in a cloud environment (AWS, GCP, or similar).Experience with cloud engineering tools like Terraform or Kubernetes (k8s) on AWS or GCP.About 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. About OfferUp At a GlanceTop 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 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. In addition to federal law requirements, OfferUp complies with applicable state and local laws governing nondiscrimination in employment in every location in which the company has facilities. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff,