Backend Engineer Growth & Engagement
@ Phantom

Hybrid
$150,000
Hybrid
Full Time
Posted 22 days ago

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Job Details

Overview

Phantom is revolutionizing the crypto ecosystem with its self-custodial wallet that manages multiple tokens across Solana, Bitcoin, Ethereum, and Polygon. The company delivers cutting-edge security and innovative tools to create an exceptional user experience, having already achieved over 16 million monthly active users and top rankings in app stores.

Role Description

As a core member of Phantom’s Growth & Engagement team, you will develop and maintain backend systems powering rapid experimentation, personalized engagement features, and scalable growth initiatives. You will own services for action cards, referral flows, push-notification pipelines, and onboarding enhancements ensuring swift launches and iterative improvements.

Responsibilities

  • Experimentation Platform: Design, implement, and maintain A/B-testing and feature flag frameworks.
  • Service Development: Build and scale microservices for referral APIs, action cards, and push notifications.
  • Instrumentation & Analytics: Instrument services with real-time metrics and partner with Data teams on event schemas.
  • Operational Excellence: Manage on-call rotations, define SLAs, and drive incident response playbooks.
  • Cross-Functional Collaboration: Work with Product, Frontend, Design, and Analytics to translate hypotheses into backend solutions.
  • Performance & Reliability: Ensure sub-100ms latency and maintain ≥99.9% uptime.

Qualifications

  • 7+ Years of backend experience with Node.js, TypeScript, and similar frameworks.
  • Web3/Crypto knowledge including on-chain data and wallet integrations.
  • Strong system design and architecture skills.
  • Experience in mentoring and leading technical initiatives.

Why Work with Phantom?

Join an experienced blockchain team that has successfully onboarded over 16 million users and continues to innovate the self-custodial wallet space. Work in an inclusive environment that offers competitive salary, equity, comprehensive benefits, flexible hours, and global opportunities.

Key skills/competency

  • Backend Development
  • Node.js
  • TypeScript
  • Microservices
  • A/B Testing
  • Feature Flags
  • Crypto
  • System Design
  • Performance
  • Operational Excellence
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How to Get Hired at Phantom

🎯 Tips for Getting Hired

  • Customize your resume: Tailor your skills to crypto backend development.
  • Highlight technical leadership: Emphasize mentoring and collaboration experience.
  • Showcase system design: Provide examples of scalable architecture.
  • Research Phantom: Understand their crypto products and growth strategies.

📝 Interview Preparation Advice

Technical Preparation

Review Node.js and TypeScript fundamentals.
Study microservices architecture and design patterns.
Practice building scalable API services.
Learn performance optimization techniques.

Behavioral Questions

Describe a time you solved a system outage.
Explain your collaboration with cross-functional teams.
Share how you handle tight deadlines.
Discuss a challenging technical project and solution.

Frequently Asked Questions