Staff Infrastructure Engineer

About ThredUpThredUp is transforming resale with technology and a mission to inspire the world to think secondhand first. By making it easy to buy and sell secondhand, ThredUp has become one of the world's largest online resale platforms for apparel, shoes and accessories. Sellers love ThredUp because we make it easy to clean out their closets and unlock value for themselves or for the charity of their choice while doing good for the planet. Buyers love shopping value, premium and luxury brands all in one place, at up to 90% off estimated retail price. Our proprietary operating platform is the foundation for our managed marketplace and consists of distributed processing infrastructure, proprietary software and systems and data science expertise. With ThredUp’s Resale-as-a-Service, some of the world's leading brands and retailers are leveraging our platform to deliver customizable, scalable resale experiences to their customers. ThredUp has processed over 172 million unique secondhand items from 55,000 brands across 100 categories. By extending the life cycle of clothing, ThredUp is changing the way consumers shop and ushering in a more sustainable future for the fashion industry.Recognized on TIME Most Influential Companies of 2023, Digiday's WorkLife 50 2023, TIME's Best Inventions of 2022, and Lattice's People Success Awards 2022.How You Will Make An ImpactAs a Staff Engineer, Infrastructure, you will be a technical leader responsible for designing, building, and evolving the core infrastructure that powers ThredUP. You’ll lead cross-team initiatives, mentor engineers, and partner with stakeholders to ensure our systems are scalable, cost-effective, and secure.This role requires deep expertise in cloud-native infrastructure, orchestration, observability, and automation at scale. Reporting to the Director of Engineering, you will play a key role in defining our technical direction and ensuring that our platform enables the rapid growth of our marketplace.In This Role You’ll Get ToScope & ImpactLead or significantly contribute to medium-to-large infrastructure projects crossing multiple engineering teams.Serve as a domain expert in cloud infrastructure, orchestration, observability, and platform automation.Ensure ThredUP’s infrastructure evolves to support scale, resilience, and developer productivity.Technical ExecutionArchitect and implement highly available, secure, and cost-efficient cloud infrastructure using AWS, Kubernetes (EKS), and Terraform.Drive improvements in CI/CD, observability, networking, and security using tools such as Jenkins, GitHub Actions, ArgoCD, Teleport, and Datadog.Provide high-quality, impactful technical contributions across infrastructure projects, setting engineering standards.Participate in and lead design reviews, providing constructive feedback and driving engineering excellence.OwnershipAct as an expert in infrastructure design, performance, and operations across multiple systems and services.Promote shared ownership of infrastructure by driving documentation, tooling, and process improvements.Monitor and optimize system performance, ensuring reliability while protecting teams from burnout.Leadership & CollaborationBuild relationships with engineering teams, product managers, and cross-functional partners to ensure infrastructure supports company goals.Contribute to defining strategic technical direction, setting infrastructure roadmaps, and guiding prioritization.Advocate for best practices in reliability, security, and cost management.Ensure knowledge is shared within the team, reducing single points of failure.Support our systems during on-call rotation.Team BuildingMentor engineers, growing their technical expertise and leadership.Advise engineering managers on practices that improve team quality, speed, and reliability.Support recruiting by participating in interviews and advocating for ThredUP’s infrastructure culture.Some travel may be required for team building but normally not more than a few times per year.What We’re Looking For8+ years of relevant industry experience with a Bachelor’s degree in Computer Science, Engineering, or related field (or equivalent experience).Proven track record of designing and scaling infrastructure for distributed, service-oriented architectures.Deep expertise in AWS (EKS, networking, RDS, IAM, cost optimization).Strong proficiency with Kubernetes, Terraform, CI/CD (Jenkins, GitHub Actions, ArgoCD).Experience with observability tools (Datadog, Rollbar, logging pipelines).Knowledge of network security, vulnerability management, and incident response best practices.Familiarity with data infrastructure (Airflow, Databricks, MySQL, RabbitMQ, Istio, Cloudflare).Excellent communication, mentoring, and collaboration skills.Experience in fintech testing automation or compliance-heavy environments is a plus.Contributions to open-source infrastructure tooling is a plus.Prior leadership in scaling platforms for e-commerce or high-growth startups is a plus.What We OfferMonthly allowance for insurance/education ($200 gross).50% paid sabbatical after 3 year anniversary.Paid parental leave for new mothers and fathers.IT Kit.We believe diversity, inclusion and belonging is key for our teamAt ThredUp, our mission has been built on extending the lives of millions of unique clothing items. Much like our inventory, we are proud to have fostered a workplace that is one-of-a-kind. As a company focused on diversity, inclusion and belonging, we are committed to ensuring our employees are comfortable bringing their authentic selves to work every day. A unique perspective is critical to solving complex problems and inspiring a new generation to think secondhand first. Be you.If you are a candidate with a disability and have a reasonable accommodation request for the job application process, please email disabilitysupport@ThredUp.com the specific details of your disability related accommodation request. This email address is reserved for candidates with disabilities only. General application inquiries will not receive a response.