Upstart

Upstart

Senior Software Engineer, New Product

Remote (Worldwide)RemotePosted 28 days ago$142,000 – $226,400
Full TimeSeniorRemote

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Job Description

About UpstartAt 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 advanc

Key Highlights

  • Design and build the frontend systems that power a brand-new consumer credit experience.
  • Develop scalable, distributed services using event-driven architectures to ensure reliability, observability, and long-term maintainability.
  • Collaborate closely with design and product to translate intent into features that serve millions of consumers.
  • Drive technical decisions in a zero-to-one product environment, balancing speed with high-quality execution.
  • Apply AI-native workflows to accelerate development, testing, analysis, and documentation.

Qualifications

Required Qualifications

  • 4+ years of experience building frontend and backend systems in production, ideally for consumer-facing applications.
  • Strong technical background in distributed systems and event-driven architecture (Kafka, SQS, Kinesis, or similar).
  • Proficiency in object-oriented programming languages (e.g., Java, Kotlin, C#, Python, Ruby) and familiarity with relational databases, APIs, and caching.
  • Demonstrated ability to work autonomously and thrive in ambiguous, early-stage product environments.
  • Deep product sense with a strong focus on end-user experience and outcomes.
  • Familiarity with observability and reliability concepts (metrics, logs, traces, SLOs).
  • Actively uses AI tools in engineering workflows, with strong opinions about the future of AI in software development.
  • Excellent written and verbal communication skills.
  • Experience at consumer-focused (B2C) fintech or technology companies with millions of users.
  • Background in backend systems related to payments, credit, or high-scale user workflows.
  • Experience building zero-to-one products and contributing to product direction in small teams.
  • Exposure to schema evolution and safe data migrations in distributed environments (e.g., Protobuf, Avro).
  • Entrepreneurial mindset—comfortable in dynamic environments, with a bias toward action and ownership.
  • Track record of scrappy, high-quality execution and an interest in building software that serves underserved populations.
  • Strong AI instincts—interest or experience building agentic systems or applying LLMs to development and testing.

Skills & Technologies

KafkaJavaKotlinPythonRuby

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Job Details

Employment Type

Full Time

Experience Level

Senior

Salary Range

$142,000 – $226,400

Location

Remote (Worldwide)

Work Mode

Remote

Posted

28 days ago