Backend Engineer, Growth & Engagement Team

Remote

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Not SpecifiedCompensation

Mid-level (3 to 4 years), Senior (5 to 8 years)Experience Level

Full TimeJob Type

UnknownVisa

Cryptocurrency, Fintech, Software DevelopmentIndustries

Requirements

Candidates should have 7+ years of backend experience, with demonstrated success in building large-scale, high-availability systems using Node.js, TypeScript, and NestJS or similar frameworks. Strong system design and architecture skills are essential, along with experience mentoring engineers and leading technical initiatives. Familiarity with Web3/crypto concepts, on-chain data, wallet integrations, or decentralized application patterns is strongly preferred.

Responsibilities

The Backend Engineer will design, implement, and maintain a feature-flag and A/B-testing framework to support rapid experimentation. They will build and scale microservices for key growth features such as referral program APIs, the action-card engine, and push-notification orchestration. Responsibilities also include instrumenting all services with real-time metrics, tracing, and logging, owning on-call rotations for growth services, defining SLAs, and writing incident response playbooks. The engineer will collaborate closely with Product, Frontend, Design, and Analytics teams to translate hypotheses into backend solutions and ensure all growth systems meet sub-100ms latency targets with high uptime.

Skills

Backend development

Microservices

A/B testing

Feature flagging

API design

Push notifications

Metrics

Tracing

Logging

Incident response

On-call rotations

Data instrumentation

Growth experimentation

User engagement

Phantom

Multi-chain crypto wallet for digital assets

About Phantom

Phantom.app offers a multi-chain cryptocurrency wallet that allows users to manage various digital assets across different blockchain networks without needing multiple wallets. The wallet is designed for both experienced investors and beginners, featuring a user-friendly interface that simplifies the complexities of cryptocurrency management. Users can store, stake, and earn rewards on their tokens, and benefit from a fast, low-cost token swapping feature for trading digital assets. A key aspect of Phantom.app is its integration with major NFT marketplaces, enabling users to showcase, monitor, and sell their NFT collections easily. Security is emphasized through a self-custodial model, giving users full control over their funds, along with scam detection features and the option to connect a Ledger device for added protection. Phantom.app aims to provide a seamless and secure platform for cryptocurrency management, catering to the needs of a diverse clientele.

San Francisco, CaliforniaHeadquarters

2021Year Founded

$115.3MTotal Funding

SERIES_BCompany Stage

Crypto & Web3Industries

201-500Employees

Benefits

Competitive salary and equity.

Comprehensive insurance (medical/dental/vision) — 100% covered.

Stipend for your ideal remote / WFH set-up: laptop, headphones, and any other work gear you may need.

Flexible hours and a long-standing, supportive remote environment.

Monthly co-working space and mobile phone expense.

Unlimited vacation: Take time when you need it (and we really mean it).

Risks

Increased competition from Best Wallet with a superior user interface.

Rapid user growth may strain infrastructure and customer support.

Decision not to launch a token could lead to user dissatisfaction.

Differentiation

Phantom offers a multi-chain wallet supporting Solana, Ethereum, Polygon, and Bitcoin.

The wallet integrates with major NFT marketplaces for easy NFT management and transactions.

Phantom prioritizes security with self-custodial features and scam detection capabilities.

Upsides

Phantom's user base tripled to 3.2 million MAUs by January 2024.

Partnership with Transak enhances seamless digital asset purchases for users.

Integration with dYdX facilitates significant trading volume, boosting platform activity.

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