Senior Software Engineer, Site Reliability

About Upstart At Upstart, we’re united by a mission that matters: to radically reduce the cost and complexity of borrowing for all Americans. Every day, we bring creativity, experimentation, and advanced AI to reshape access to credit, helping millions move forward financially with clarity and confidence. As the leading AI lending marketplace, we partner with banks and credit unions to expand access to affordable credit through technology that’s both radically intelligent and deeply human. Our platform runs over one million predictions per borrower using more than 1,800 signals, powering smarter, fairer decisions for millions of customers. But the numbers only hint at the impact. Every idea, every voice, and every contribution moves us closer to a world where credit never stands between people and their financial progress. We’re proudly digital-first, giving most Upstarters the flexibility to do their best work from wherever they thrive, alongside teammates across 80+ cities in the US and Canada. Digital-first doesn’t mean distant. We’re intentional about in-person connection through team onsites, planning sessions, and moments that spark creativity and trust. And whether you choose to work primarily from home or collaborate in-person from one of our offices in Columbus, Austin, the Bay Area, or New York City (opening Summer 2026), you’ll have the support to work in the way that works best for you. If you’re energized by tackling meaningful problems, excited to innovate with purpose, and motivated by work that truly matters, we’d love to hear from you. The Team Upstart’s Site Reliability Engineering (SRE) team owns the reliability, resiliency, and observability of Upstart’s production systems. The SRE team builds tooling and automation to monitor the health of our infrastructure and create a fast, reliable, and productive environment for other engineers and a world-class experience for our customers. SRE defines Upstart’s strategy for technology operations risk mitigation, which includes disaster planning and on-call procedures. We use data-driven approaches to drive our decisions, and provide reports and insights to the business to improve visibility into the system and customer experience. As a Senior Software Engineer focused on Site Reliability Tooling , your work will directly impact the success of the SRE team and all of Upstart. Your expertise will inform the team’s direction, and your work with other SREs and Upstart engineers will make Upstart’s systems as effective as possible for our customers. SRE at Upstart is ever-changing, and you will be a primary contributor in shaping our future path. How you’ll make an impact: Embody and share SRE principles at Upstart Exercise state-of-the-art SRE practices throughout the company Uphold a culture of visibility, ownership, and responsibility around service reliability Implement standards for monitoring microservices, web apps, mobile apps, databases, Kubernetes clusters, and machine learning platforms, in a fast-paced environment Improve incident response practices, both within SRE and throughout the company Automate away toil that make sense to be automated What we’re looking for: Minimum requirements: Minimum of 6 years combined experience between Software Engineering, Site Reliability, and/or DevOps Engineering including CI/CD, TDD, internal tooling, observability, and other agile development practices Proficiency coding Python, Go, JavaScript/TypeScript Proficiency with Infrastructure as Code (Terraform, CDK, Cloudformation, etc.) Software engineering background with experience building internal tooling from scratch, and other agile development techniques Strong software design & architecture skills Fundamentally sound with data structures & algorithms Experience with on-call and incident management environments Experience with observability, monitoring, and reporting tools (e.g., Datadog, Sumologic, , etc.) Experience supporting SaaS software in a microservice-oriented