One, Inc

Software Engineer, Product

One, Inc • $120K — $145K *
US-AnywhereRemote in United States
Finance & Insurance
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 5+ years of experience in building and scaling distributed systems or high-throughput APIs
  • Proficient in both backend architecture and modern frontend frameworks
  • Experience with secure and high-performance systems, preferably in payments or regulated finance
  • Excellent communication skills and a collaborative approach
  • Growth mindset with a passion for learning and team contribution

Responsibilities

  • Set architectural standards and ensure code quality
  • Collaborate with product, design, and operations on product strategy
  • Optimize systems for reliability, security, and scalability
  • Make technical decisions balancing delivery speed with sustainability

Benefits

  • Competitive base salary, stock options, and health benefits from Day 1
  • 401(k) plan with company match
  • Remote-friendly with flexible time off
  • High-growth, mission-driven culture where work impacts the community
Full Job Description
The Role

The [redacted] team is responsible for OnePay's employer benefit features, including Instapay, savings, and budgeting. As a Full Stack Engineer at OnePay, you will build simple and beautiful experiences for people's crucial daily interactions with their money, earnings, and pay schedules.

What You'll Do
  • Set architectural standards and ensure best practices in code quality, performance, and scalability
  • Partner closely with product, design, and operations to shape and deliver @Work product strategy
  • Oversee optimization of systems for reliability, security, and scalability
  • Own technical decision-making, balancing rapid delivery and sustainable solutions


You Bring
  • 5+ years of experience building and scaling distributed systems, high-throughput APIs, or data-intensive services
  • Solid hands-on full-stack engineering skills, with proficiency in backend architecture and modern frontend frameworks
  • Experience designing or working on reliable, secure, and high-performance systems -ideally in payments, EWA, or other regulated consumer finance domains
  • Clear communication skills and a collaborative working style
  • Initiative and growth mindset - eager to learn and contribute as a team player


Tools We Use

We use Node and TypeScript on the server, leveraging the NestJS framework within a microservice-oriented architecture running on Kubernetes and AWS. On the client side, we build and ship product features for iOS, Android, and web platforms using React Native. We also embrace AI-assisted development, so engineers have their choice of Claude Code or Cursor to fit their workflow. While you don't need experience with our exact stack, familiarity with modern software engineering practices will help you ramp up quickly.

What We Offer
  • Competitive base salary, stock options, and health benefits from Day 1
  • 401(k) plan with company match
  • Remote-friendly (US), flexible time off (FTO), and opportunities for growth
  • A high-growth, mission-driven, inclusive culture where your work has real impact


Standard Interview Process

Our process varies by role. Most candidates go through:
  • AI-assisted initial screen
  • Interview with Talent Partner
  • Technical or Hiring Manager Interview
  • Team Interview
  • Executive Interview
  • Offer!


About One, Inc

One, Inc. provides software solutions for the insurance industry. The company offers a cloud-based policy administration system that automates the process of selling and servicing insurance policies. The company's platform enables insurance companies to manage policies, claims, billing, and analytics. The company's customers include insurance carriers, managing general agencies, and brokers. The company was founded in 2005 and is headquartered in Santa Monica, California.
Learn more about One, Inc
Size
200 employees
Industry
Founded
2012

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