M

Moon

Non-custodial crypto-to-Visa card payments

Full-Stack Engineer - Designer Experience

Full-TimeUpdated on 10/21/2026
$130k - $160k/yr
Junior
Glendale, CA, USA
In Person
Software EngineeringFull-Stack Engineering

About the job

Requirements
  • At least 2 years of full-stack engineering experience.
  • Strong web fundamentals.
  • Proficiency in TypeScript.
  • Comfort with AI-assisted development or eagerness to develop proficiency in it.
Responsibilities
  • Build features across the stack using C#/.NET APIs and services and a TypeScript front-end.
  • Ship continuously behind feature flags on the shared design system while meeting the team's quality standards.
  • Write automated tests as part of every change.
  • Work directly with product designers to turn their feedback into fast, precise iterations.
  • Learn the workflows of in-home design and selling to understand the business served by the software.
  • Cross-review work with senior engineers and take on increasing scope toward owning features end to end.
Desired Qualifications
  • C#/.NET exposure is preferred.
  • Mobile or hybrid app exposure is a plus.

About the company

Moon provides virtual Visa cards that let people spend cryptocurrency anywhere Visa is accepted. It converts crypto assets (Bitcoin on-chain or via Lightning, Ether, USDC, USDT) into a Visa balance, enabling purchases at millions of merchants; users choose 1X single-use cards or X reloadable cards for higher limits and subscriptions. The service is non-custodial, so Moon does not hold user funds and shields personal data from merchants. Its goal is to make cryptocurrency a practical daily payment method by bridging crypto to fiat with private, easy-to-use card solutions.

Company Size

11-50

Company Stage

Seed

Total Funding

$100K

Headquarters

New York City, New York

Founded

2018

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Simplify's Take

What believers are saying

  • The June 5, 2026 site still supports Bitcoin Lightning, a fast rail few card startups match.
  • Moon’s privacy pitch fits users avoiding merchant data exposure, especially for online shopping.
  • LinkedIn updated September 2, 2026 shows Kruger still active, signaling ongoing operator continuity.

What critics are saying

  • Moon depends on Visa and partner financial institutions; any issuer cutoff instantly kills card issuance.
  • June 2026 limits stay tight: $4,000 monthly spending and no Apple Pay or physical card.
  • Crypto card competitors and merchant-branded gift-card rails compress Moon’s fee advantage and user retention.

What makes Moon unique

  • Moon’s June 5, 2026 site sells non-custodial Visa cards funded by BTC, Lightning, USDC, USDT, and ETH.
  • Moon separates one-time 1X cards from reloadable X cards, matching privacy and subscription use cases.
  • Kenneth Kruger has led Moon since June 2018, giving the product a long, focused crypto-payments thesis.

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Benefits

  • Health Insurance
  • Dental Insurance
  • Vision Insurance
  • 401(k) Retirement Plan
  • 401(k) Company Match
  • Unlimited Paid Time Off
  • Health Savings Account/Flexible Spending Account

Growth & Insights

Headcount

6 month growth

0%

1 year growth

0%

2 year growth

0%