About this role.
Phantom is hiring a Senior Software Engineer, Frontend to own and deliver features for its web platforms, including the Phantom Extension and website. The role involves leading new blockchain-support initiatives and complementary product or infrastructure launches in a fully remote, crypto-focused environment. Candidates need 5+ years of full-time engineering experience and strong React, TypeScript, and React-Query capabilities; Solana web3.js or ethers.js experience is also relevant. The engineer will engage directly with users and developers, translate feedback into product direction, and contribute to a high-bar engineering culture. This is a senior individual-contributor role with substantial product ownership and technical leadership expectations.
Role DNA
A quick view of the complexity, pace, ownership and collaboration implied by the job description.
Job Complexity
4/5Pace & Pressure
4/5Autonomy Level
5/5Communication Load
4/5Salary analysis
Estimated compensation compared with the broader US market for similar roles.
Core skills
Skills and capabilities most closely associated with this opportunity.
Sample interview questions
I would explain how I clarified user needs, proposed a technical approach, broke the work into milestones, implemented and tested the feature, monitored its release, and incorporated user feedback after launch.
I would model transaction states explicitly, validate inputs early, surface network and signing status clearly, handle failed or delayed confirmations gracefully, and ensure users can safely recover from interrupted flows without losing context.
I use clear component and domain boundaries, strongly typed interfaces, reusable hooks, consistent state-management patterns, automated tests for critical flows, code review standards, and incremental refactoring to prevent complexity from accumulating.
I group feedback by frequency, severity, and user impact; validate themes with product and support data; then turn the strongest findings into actionable requirements, prototypes, or prioritized technical improvements.
I would consider wallet-provider compatibility, network and chain-state handling, transaction serialization and signing flows, RPC reliability, error normalization, secure handling of public account data, and clear user messaging for on-chain latency or failures.
Phantom is on a mission to connect the world to the freedom of open markets. Tens of millions of people all over the world use Phantom to access global markets that never close, including perpetuals, prediction markets, tokenized assets, stablecoins and memes. Phantom users are able to discover the markets that matter and the cultural moments that shape them, building conviction through real-time data and the verified performance of top traders. With self-custody and access to open networks at its core, Phantom lets them control their financial moves in the same app they use to safely store or spend money worldwide.
Phantom has reached #1 in Google Play’s finance category and consistently ranks in the top 50 apps across all categories. Phantom partners with many of the most trusted and influential names in finance like Hyperliquid, Stripe, Kalshi and Visa, to make the most popular and innovative financial products accessible to everyone.
We are around 180 people, fully remote, backed by a $150M Series C investment from a16z, Sequoia Capital and Paradigm.
Responsibilities
Feature development: You will be owning features on our web platforms – currently the Phantom Extension and our website.
New initiatives and products: You will be leading initiatives to add support for other blockchains to Phantom, and to launch new complementary products or infrastructure.
Interfacing with users: You will be interfacing directly with end-users and developers building on Phantom – supporting them and collecting feedback to inform the direction of the product.
Team building: You will be working with the team to create and foster a culture of raising the bar with each new hire.
Qualifications
Bachelors degree in Computer Science or related technical field or equivalent practical experience
5+ years full-time software engineering experience with some of the following technologies:
React / Typescript / React-Query
Solana web3.js / ethers.js
Demonstrated interest in open and community-driven platforms
English language proficiency
Nice-To-Have: experience in a blockchain based project
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
Unlimited vacation: Take time when you need it (and we really mean it!)
401(k) retirement plan
Wellness benefit
Daily lunch benefit
The target base salary for this role will range between $180,000 to $220,000 with the addition of equity and benefits. This is determined by a few factors including your skillset, prior relevant experience, quality of interviews and market factors (such as location) at the point in time of offer.
#LI-DNP
We strongly encourage candidates of all backgrounds to apply. We believe that our work is stronger with a variety of perspectives, and we’re eager to further diversify our company. If you have a background that you feel would make an impact at Phantom, please consider applying. We’re committed to building an inclusive, supportive place for you to do the best work of your career.
By submitting your resume and application materials, you acknowledge and agree that Phantom Technologies, Inc. (“Phantom”) collects and processes your personal information (including application materials, interview records, and related data) to evaluate your candidacy. Phantom may use AI-powered tools and third-party service providers for transcription, note-taking, scheduling, and other administrative tasks. Phantom does not sell your information and your materials will be handled securely and in accordance with applicable data protection laws.
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