Senior Software Engineer, Upstart

• 3-5 years of experience in software development, with a strong focus on full-stack development, distributed systems, and APIs
• Experience with some or many of the following: Ruby on Rails, Kotlin, PostgreSQL, React, Next.js, Vercel, Python
• Experience with cloud platforms (AWS, GCP, Azure) and deploying applications in a cloud native environment
• Experience with microservices architecture and real-time data processing pipelines (Kafka, Spark, or similar)
• Familiarity with database technologies such as SQL and data warehousing solutions
• Good communication and teamwork skills, with the ability to work effectively with cross-functional teams

Desirable

• We’re hiring a Senior Software Engineer to build partner‑facing systems that improve transparency, reliability, and self‑service across our capital ecosystem
• You’ll contribute to services and UIs that power reporting, onboarding, and ongoing operations for lending partners and investors, collaborating closely with Product, Design, Analytics, and other engineering teams
• This is an impact‑driven role where your work will directly strengthen partner confidence, reduce operational friction, and accelerate capital deployment
• Design, build, and maintain scalable APIs, services, and UIs that enable partners to access performance data, operational workflows, and program controls
• Ship clear, well‑tested code; participate in code reviews; and improve reliability through logging, metrics, and alerting
• Work across the stack (backend, data access, and front‑end integration) to deliver end‑to‑end capabilities with strong security and availability
• Partner with stakeholders to translate requirements into simple, reliable workflows and self‑service tools that reduce manual processes
• Own deployment and operational readiness in cloud environments, including CI/CD, observability, and incident mitigation
• Contribute to technical design docs and help evolve our platform architecture for partner experiences over time