--- title: 'Staff Machine Learning Engineer at Phantom' canonical: 'https://feeny.ai/job/staff-machine-learning-engineer-phantom-remote-se1wj3nw8bq4' type: 'job' last_seen: '2026-09-16' --- # Staff Machine Learning Engineer at Phantom - **Company:** Phantom - **Location:** Remote - **Employment:** full-time - **Work type:** remote - **Posted:** 2026-09-14 - **Last confirmed live:** 2026-09-16 - **Apply:** https://jobs.ashbyhq.com/phantom/1075b491-988e-4c24-8806-9e5e840cbe5a ## Job description [Phantom](https://phantom.com) 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. ## Role Overview We are seeking a visionary and hands-on Staff Machine Learning Engineer to lead the technical strategy, architecture, and execution of our Growth and Engagement ML initiatives. In this role, you will bridge the gap between advanced machine learning and business strategy, designing systems that drive user acquisition, retention, lifetime value (LTV), and deep product engagement. As a technical pillar of the engineering organization, you will own the end-to-end lifecycle of complex ML models, mentor senior engineers, and collaborate closely with Product, Data Science, and Marketing leadership to move core business metrics. ## Key Responsibilities Technical Leadership & Strategy - Define the long-term technical roadmap for Growth and Engagement ML systems, ensuring scalability, reliability, and measurable business impact. - Architect and deploy production-grade ML pipelines and real-time decisioning systems that power personalization, notification dispatch, and onboarding flows. - Evaluate and integrate cutting-edge ML techniques, including multi-armed bandits, reinforcement learning, LLMs for content generation, and advanced graph neural networks. Execution & Modeling - Design, train, and validate sophisticated models targeting user lifecycle stages: propensity to churn, lifetime value (LTV) forecasting, next-best-action, and lookalike modeling. - Build and optimize recommendation engines and semantic search systems to surface highly relevant content, products, or features to users. - Establish robust experimentation frameworks (advanced A/B testing, causal inference, and multi-variate testing) to rigorously validate model variants in production. Collaboration & Mentorship - Partner with Product and Growth marketing teams to translate high-level business hypotheses into precise, actionable machine learning problems. - Mentor and coach senior engineers across the data and ML organizations, fostering a culture of technical excellence and continuous learning. - Advocate for ML engineering best practices, including model monitoring, feature store utilization, reproducible training pipelines, and data governance. ## Qualifications & Skills ## Experience - 8+ years of professional experience in machine learning engineering, data science, or software engineering, with at least 3+ years in a Staff, Principal, or Tech Lead capacity. - Proven track record of building and scaling ML systems specifically within growth, marketing tech, recommendation engines, or consumer engagement domains. - Extensive experience with large-scale data processing and distributed computing. Technical Proficiencies - Languages: Expert-level Python, Scala, or Java. - ML Frameworks: PyTorch, TensorFlow, JAX, or XGBoost. - Data & MLOps Infrastructure: Spark, Flink, Kafka, Snowflake/BigQuery, Ray, Kubeflow, MLflow, or SageMaker. - Experimentation: Deep understanding of causal inference, uplift modeling, and robust statistical testing methodologies. Core Competencies - Business Acumen: Ability to directly connect algorithmic improvements to top-line growth metrics (e.g., MAU/DAU, conversion rates, retention curves). - Communication: Exceptional ability to explain highly complex technical architectures and algorithmic choices to non-technical stakeholders and executives. ## Why Work with Us Opportunity We are a team of experienced builders with a ton of traction in a big and growing market – our users are so passionate they were hacking their way into our private beta. We've acquired millions of users in our 3+ years and are adding more every week! On top of that, there has never been a better time to work in crypto and on wallets in particular. - Wallets play a pivotal role: Wallets are responsible for on-boarding new users into crypto, and can make or break the user experience. - We are moving to a multi-chain world: New blockchains and scaling solutions are coming online and gaining traction, but are lacking decent wallets and bridges. - DeFi & NFTs are exploding : Interest in DeFi and NFTs has exploded, yet they are still an after-thought in existing wallets. ## 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 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. ## About Phantom ## Company Overview - **One-liner**: Phantom is a self-custodial, multichain crypto wallet that makes it simple and safe to store, swap, and manage digital assets, designed for mass adoption. - **Entity Type**: Private (Series C, raised $150M in January 2025) - **Headquarters**: Remote-first; physical headquarters not publicly disclosed - **Founded**: 2021 - **Founders**: Brandon Millman, Francesco Agosti, Julian Tescher ## Core Business - Primary industry: Cryptocurrency wallet & consumer finance - Target customers: B2C (individuals managing crypto, NFTs, and decentralized finance) - Mission: “Make money easier to use, safer to control, and more accessible to everyone” ## Products & Services - **Multichain Wallet (SaaS)**: Non-custodial wallet supporting Solana, Ethereum, Polygon, and other chains. Users can store, send, receive, and swap tokens; manage NFTs; and connect hardware wallets like Ledger. - **In-App Token Swapper**: Integrated exchange that recorded over $1B in swap volume within months of launch. - **Social Features**: Usernames, profiles, and social transfers to make sending money as easy as messaging. - **NFT Tools**: Pin, hide, burn, list, and sell NFTs in two clicks; access to major NFT marketplaces. - **Security Features**: Scam detection, transaction alerts, and self-custodial design (Phantom never has access to funds). ## Market Standing - **Valuation/Market Cap**: $3 billion (as of Series C announcement in January 2025) - **Key Metric**: Total funding $150M (Series C, Jan 2025); 15 million+ monthly active users (2025) - **Notable Investors/Partners**: Sequoia Capital, Paradigm (co-led Series C); a16z crypto, Variant, Jump Capital (prior rounds) - **Growth Signals**: Team of 100+ remote employees; global offsites twice a year; rapidly growing user base (from 40K beta testers in 2021 to 15M+ in 2025); expansion beyond wallet into broader consumer finance platform ## Competitive Advantages - **Multichain by design**: One wallet for multiple blockchains eliminates fragmentation. - **User experience focus**: Clean, intuitive interface that lowers barriers for non‑crypto native users. - **Self-custodial + security**: Users retain full control; built-in scam detection and 24/7 support. - **Social money movement**: Unique social features (usernames, profiles) differentiate from traditional wallets. - **Strong investor backing**: Top‑tier crypto and VC partners provide capital and ecosystem credibility. ## Strategic Focus - Build the “world’s biggest consumer finance platform” by expanding utility beyond simple wallet functions (e.g., fiat on/off ramps, lending, staking). - Drive mass adoption through simplicity, design, and accessibility. - Continue to scale engineering and product teams globally to support a 100% remote, high‑ownership culture. ## Why Work Here - **Culture**: Fully remote, global team of designers, engineers, and former founders. Values include ownership, speed, and decentralization. - **Remote/Hybrid**: 100% remote with two global offsites per year to build connection. - **Perks**: Unlimited PTO, daily meal benefit, monthly wellness benefit, comprehensive health plans, learning & development budget. - **Engineering Culture**: “Great ideas can come from anywhere”; flat, collaborative environment with real ownership over what you build. - **Open Roles**: Engineering, product, design, growth, and people operations (see [careers page](https://jobs.ashbyhq.com/phantom)). ## Sources 1. [phantom.com/about](https://phantom.com/about) 2. [phantom.com/careers](https://phantom.com/careers) 3. [phantom.app/en-GB/careers](https://phantom.app/en-GB/careers) 4. [phantom.app/en-GB/](https://phantom.app/en-GB/) 5. [linkedin.com/company/phantomwallet](https://www.linkedin.com/company/phantomwallet) 6. [jobs.ashbyhq.com/phantom](https://jobs.ashbyhq.com/phantom) ## Other roles at Phantom - [Growth Partnerships Lead](https://feeny.ai/job/growth-partnerships-lead-phantom-united-states-15bap54revc8) — United States - [VIP Account Manager](https://feeny.ai/job/vip-account-manager-phantom-remote-1xzw4krq0qz3) - [Senior Software Engineer, Backend (Money Movement)](https://feeny.ai/job/senior-software-engineer-backend-money-movement-phantom-remote-79dnrxak9q2m) - [Senior Copywriter](https://feeny.ai/job/senior-copywriter-phantom-united-states-jy54ghm0ak46) — United States - [Staff DevOps Engineer (Platform)](https://feeny.ai/job/staff-devops-engineer-platform-phantom-remote-t7cyynh7ja19) - [Head of Business and Corporate Development](https://feeny.ai/job/head-of-business-and-corporate-development-phantom-united-states-13ksszxr69qs) — United States - [Senior Brand Designer](https://feeny.ai/job/senior-brand-designer-phantom-united-states-66xvj7ab5vb8) — United States - [Head of Brand Creative](https://feeny.ai/job/head-of-brand-creative-phantom-united-states-wjc5r2fgz4n0) — United States - [Senior Software Engineer, Frontend](https://feeny.ai/job/senior-software-engineer-frontend-phantom-remote-cdnmytmqe9kn) - [Software Engineer, Frontend / Full Stack (Identity Platform)](https://feeny.ai/job/software-engineer-frontend-full-stack-identity-platform-phantom-remote-rkrnkf907ptm)