Upstart · 7 hours ago
Senior Software Engineer, API Enablement
Upstart is the leading AI lending marketplace partnering with banks and credit unions to expand access to affordable credit. As a Senior Software Engineer on Upstart’s Event Bus, Experimentation, and gRPC team, you will design and implement high impact solutions that enhance the overall architecture and service communication across the company.
Artificial Intelligence (AI)AutomotiveConsumer LendingCreditFinancial ServicesFinTechLendingMachine LearningPersonal Finance
Responsibilities
Lead the design and development of new features and improvements to existing features
Collaborate with cross-functional teams to understand requirements and bring those insights into building an impactful roadmap for the team
Establish best practices for achieving an Event Driven Architecture, safe feature rollout, and service to service, API design
Mentor junior engineers and promote a culture of technical excellence
Contribute to quality improvements within our team and the engineering organization in a meaningful way
Qualification
Required
Bachelor's or Master's degree in Computer Science or related field
5+ years of professional experience
Strong communication skills and ability to collaborate effectively with cross-functional teams
Strong proficiency in one or more of Kotlin, Java, Python, Ruby, or Typescript programming languages
Proficiency in automated testing patterns
Experience in building highly observable systems
Preferred
Experience with Kotlin, Python, Ruby, or Typescript
Experience with Kafka
Experience with gRPC
Experience with A/B testing and/or Feature Flagging
Strong sense of ownership and accountability for the quality and timely delivery of work
Ability to thrive both in self-directed work environments and in collaborative settings, contributing positively to team dynamic
Benefits
Comprehensive medical, dental, and vision coverage with Health Savings Account contributions from Upstart
Generous 401(k) plan with Upstart matching $2 for every $1 contributed, up to $15,000 per year
Employee Stock Purchase Plan (ESPP)
Life and disability insurance
Generous holiday, vacation, sick and safety leave
Supportive parental, family care, and military leave programs
Annual wellness, technology & ergonomic reimbursement programs
Social activities including team events and onsites, all-company updates, employee resource groups (ERGs), and other interest groups such as book clubs, fitness, investing, and volunteering
Catered lunches + snacks & drinks when working in offices
Company
Upstart
Upstart (NASDAQ: UPST) is a leading AI lending marketplace partnering with banks and credit unions to expand access to affordable credit.
H1B Sponsorship
Upstart has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (68)
2024 (67)
2023 (85)
2022 (85)
2021 (42)
2020 (15)
Funding
Current Stage
Public CompanyTotal Funding
$3.36BKey Investors
CastlelakeProgressiveRakuten
2025-11-06Post Ipo Debt· $1.5B
2025-09-05Post Ipo Debt· $320M
2025-08-12Post Ipo Debt· $600M
Recent News
The Motley Fool
2026-01-03
The Motley Fool
2026-01-01
2025-12-17
Company data provided by crunchbase