[Hiring] Senior Software Engineer, API Enablement @Upstart

Role Description

As a Senior Software Engineer on Upstart’s Event Bus, Experimentation, and gRPC team, you are empowered to design and implement high impact, cross cutting solutions that touch nearly every service within Upstart. We are a small and high impacting team contributing to Upstart’s North Star Architecture and need a product-oriented engineer who is excited to contribute across Event Bus, Experimentation, and gRPC internal tooling.

How you’ll make an impact:

• 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.

Qualifications

• Bachelor’s degree in Computer Science, Engineering, or Mathematics, or a related field (or its equivalent) + 4 years of 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.

Requirements

• 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

• Competitive compensation, including base pay, bonus opportunities, and annual equity grants that vest quarterly.
• Generous 401(k) plan with Upstart matching $2 for every $1 contributed, up to $15,000 per year.
• Employee Stock Purchase Plan (ESPP) with discounted stock purchase options for eligible employees.
• Affordable medical, dental, and vision coverage, with multiple plan options - Upstart covers 90% to 100% of the cost depending on the plans you choose.
• Health Savings Account contributions from Upstart for eligible plans.
• Income protection benefits, including company-paid Basic Life, AD&D, and Short- and Long-Term Disability coverage, with options to purchase supplemental coverage.
• Paid time off, sick and safe time, and company holidays.
• Paid family and parental leave to support caregiving and major life moments.
• Family-centered benefits through Carrot and Cleo, supporting fertility, parenthood, and caregiving.
• Employee Assistance Program (EAP) offering mental health support and life-centered resources.
• Financial wellness resources, including access to financial planning tools and a financial concierge service.
• Annual wellness allowance to support your physical and emotional well-being and personal development, based on what matters most to you.
• Annual productivity allowance to invest in relevant tools and resources you need to do your best work, no matter where you work from.
• Connection and community through team events and onsites, all-company updates, and employee resource groups (ERGs).
• Onsite perks, including catered lunches and fully stocked micro-kitchens when working from one of our four offices, located in the Bay Area, Austin, Columbus, and New York City (opening Summer 2026!).