Senior Software Engineer, Identity Platform

Upstart

Senior Software Engineer ensuring secure identity framework across lending products at Upstart. Collaborating closely with engineering and security teams to drive innovation in identity management.

Posted 6/22/2026full-timeRemote • 🇺🇸 United StatesSenior💰 $166,900 - $230,900 per yearWebsite

Tech Stack

Tools & technologies

DockerJavaKotlinKubernetesRuby

About the role

Key responsibilities & impact

Design, develop, and optimize secure and scalable authentication and authorization systems.
Collaborate with cross-functional teams to improve Identity and Access Management (IAM) capabilities, including OAuth, OpenID Connect, MFA, and SSO.
Partner with Security teams to enhance security policies and standards, ensuring protection against threats and unauthorized access.
Improve Experimentation platform and Lifecycle across the Upstart Network Inc Products.
Drive best engineering practices for clean, maintainable, and efficient code.
Participate in architectural discussions, helping to shape the long-term vision of Identity Platform.
Mentor and collaborate with other engineers to elevate the team’s technical skills and knowledge.
Work on high impact initiatives that solve for making credit accessible to everyone.

Requirements

What you’ll need

Bachelor’s degree in Computer Science, Engineering, or Mathematics, or a related field (or its equivalent) + 4 years of experience
Strong proficiency in backend technologies (e.g., Kotlin, Java, Ruby, C#).
Hands-on experience with authentication and authorization protocols (OAuth 2.0, OpenID Connect, SAML).
Experience building scalable APIs using containerization technologies like Docker and Kubernetes.
Understanding of security principles, including encryption, token-based authentication, and identity federation.
Strong problem-solving and debugging skills, with an emphasis on performance optimization.
Ability to balance the needs of the business with engineering best practices and security considerations.
Passion for clean code, architecture, and continuous improvement of engineering processes.
Experience with AI Coding tools such as Cursor, Claude Code etc.
Excellent communication skills – able to translate complex technical concepts for a variety of stakeholders.

Benefits

Comp & perks

Competitive compensation, including base pay, bonus opportunities, and annual equity grants that vest quarterly
Retirement benefits to help you plan for the future, including a 401(k) or Group Retirement Savings Plan with a company match of $2 for every $1 contributed, up to $15,000 annually (USD in the US, CAD in Canada)
Employee Stock Purchase Plan (ESPP) with discounted stock purchase options for eligible employees (US only)
Comprehensive health coverage designed to support you and your family, including medical, dental, vision, and wellness resources for US and supplemental health coverage for Canada.
Health Savings Account contributions from Upstart for eligible plans (US only)
Income protection benefits, including life insurance and disability coverage for added financial security
Paid time off, sick leave, and company holidays, in line with local requirements
Paid family and parental leave to support caregiving and major life moments (duration varies by country)
Family-centered benefits to support fertility, parenthood, and caregiving needs
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 (US Only)
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, all-company updates, and employee resource groups (ERGs)
Onsite perks, including catered lunches and fully stocked micro-kitchens when working from one of our offices in the Bay Area, Austin, Columbus, and New York City (opening Summer 2026!)

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Hard Skills & Tools

KotlinJavaRubyC#OAuth 2.0OpenID ConnectSAMLDockerKubernetesperformance optimization

Soft Skills

problem-solvingdebuggingcommunicationmentoringcollaborationbalancing business needspassion for clean codecontinuous improvement