frontend developer for crypto wallets

HireHi

United States

Remote

USD 150,000 - 190,000

Full time

10 days ago
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Benefits offered by this job

Акции
Медицинская, стоматологическая и офтαλ
Стипендия за удаленную работу
Гибкий график
Неограниченный отпуск
Пенсионный план 401(k)
Ежемесячная программа оздоровления
Еженедельное питание
Глобальные выездные мероприятия

Job summary

Phantom — автономный крипто-кошелек с поддержкой нескольких сетей и безопасными операциями в браузере и на мобильных устройствах. Вакансия нацелена на инженера по крипто-аутентификации и signing-flow, ответственного за развитие signing path, аутентификацию, MFA и WebAuthn, onboarding и тесты.

Ищем опытного специалиста в области безопасности, с опытом работы над кошельками и Web3, а также готового работать в гибком графике и удаленно.

Qualifications

  • 7+ лет опыта в разработке ПО.
  • Доказанный опыт создания тестовых наборов с высокой информативностью и малой нестабильностью.
  • Знакомство с концепциями аутентификации: сессии/токены, MFA/OTP, WebAuthn.
  • Сильные инженерные основы в проектировании систем, отладке и надёжности продакшн.
  • Желателен опыт OAuth2/OIDC, WebAuthn, криптографии, управления ключами.
  • Опыт в Web3, кошельках или потоках подписания.
  • Опыт в области безопасности или финансовых сервисов в идентификации, платежах или хранении.
  • Rust: опыт или стремление изучать.

Responsibilities

  • Own and evolve the signing path for every transaction in Phantom
  • Build and harden authentication, unlocking, biometrics, and account access flows across web and mobile
  • Ship passkeys (WebAuthn) and MFA improvements with a strong security/usability balance
  • Own onboarding and key lifecycle flows, including key generation/derivation, seed phrase flows, seedless registration, and hardware wallet pairing
  • Own sensitive key export/import experiences and related safety rails
  • Write and maintain high-signal, non-flaky unit, integration, and end-to-end tests for critical paths
  • Ensure safe rollouts through monitoring and staged releases

Skills

TypeScript
Authentication concepts
System design
Web3 Wallet experience
Rust
Debugging
OAuth2/OIDC
WebAuthn
Cryptography
Key management
Web3
Signing flows
Identity
Payments
Custody
Rust

Education

7+ лет опыта

Tools

WebAuthn

Job description

Описание

Phantom is a self-custodial crypto wallet that gives users access to open financial markets, including perpetuals, prediction markets, tokenized assets, stablecoins, and memes. The company supports multiple blockchain networks and focuses on secure, seamless wallet experiences.

Задачи
  • Own and evolve the signing path for every transaction in Phantom
  • Build and harden authentication, unlocking, biometrics, and account access flows across web and mobile
  • Ship passkeys (WebAuthn) and MFA improvements with a strong security/usability balance
  • Own onboarding and key lifecycle flows, including key generation/derivation, seed phrase flows, seedless registration, and hardware wallet pairing
  • Own sensitive key export/import experiences and related safety rails
  • Write and maintain high-signal, non-flaky unit, integration, and end-to-end tests for critical paths
  • Ensure safe rollouts through monitoring and staged releases
Требования
  • 7+ Years of experience
  • Strong TypeScript skills and experience shipping code across browser, Node.js, and mobile JavaScript runtimes
  • Proven ability to build high-signal, low-flake test suites for critical systems
  • Familiarity with authentication concepts and mechanisms, including sessions/tokens, MFA/OTP, and WebAuthn/passkeys
  • Strong engineering fundamentals in system design, debugging, and production reliability
  • Nice to have: deeper experience with OAuth2/OIDC, WebAuthn internals, cryptography, or key management systems
  • Web3, wallet, or signing-flow experience
  • security- or money-adjacent experience in identity, payments, or custody
  • Rust experience or strong interest in learning it
Условия
  • Competitive salary and equity
  • Comprehensive medical, dental, and vision insurance with 100% employee coverage
  • Stipend for an ideal remote setup
  • Flexible hours
  • Unlimited vacation
  • 401(K) retirement plan
  • Monthly wellness benefit
  • Weekly meal benefit
  • Global off-sites
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