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MoonPay

MoonPay

via Lever.co

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Senior Blockchain Engineer

New York, New York
Full-time
Posted 8/11/2026
Direct Apply
Key Skills:
Backend engineering
API design
System observability

Compensation

Salary Range

$70K - 150K a year

Responsibilities

Design and improve high-volume transaction pipelines and manage wallet infrastructure with cross-chain and DeFi integrations.

Requirements

Requires strong backend fundamentals and experience with live blockchain production systems and transaction lifecycle understanding.

Full Description

About MoonPay MoonPay is for builders with something to prove. This isn't a "work on cool crypto stuff" company. It's a high-standards, high-velocity, high-accountability company building the operating system for value movement. If the internet moves information, we move value: crypto, stablecoins, tokenized assets, and whatever comes next. Four offerings make that real: fund, tokenize, trade, and spend. 30M+ customers and 500+ ecosystem partners run on us. Licensed in the U.S. Regulated across the UK, EU, Canada, and Australia. AI is the default operating mode here. It's woven into every role, and we expect you to use it daily. It handles the manual work so you can deliver on what actually matters. You'll thrive here if outcomes excite you more than process, if impact motivates you more than titles, and if you want hard problems, real ownership, and teammates who love winning, building, and doing it together. The bar is high. The pace is real. We're building for what's next, for humans and agents. Recent recognition: Forbes' America's Best Startup Employers 2026 . 2nd in Crypto Services on Fortune's inaugural Crypto 100, The Sunday Times Best Places to Work two years running. Research has shown that women are less likely than men to apply for this role if they do not have experience in 100% of these areas. Please know that this list is indicative, and that we would still love to hear from you even if you feel that you are only a 75% match. Skills can be learned, diversity cannot. ______________________________________________________________________________________________________ What You Will Do Transaction Infrastructure at Scale Design and improve high-volume transaction broadcasting pipelines Manage transaction lifecycle Detect, retry, rebroadcast, and safely recover stuck transactions Wallet & Lifecycle Management Contribute to wallet infrastructure and automation systems Implement safe parallel transaction handling Improve monitoring, observability, and operational guardrails Design systems with financial correctness and reconciliation and auditability in mind Cross-Chain & DeFi Integrations Build infrastructure supporting cross chain and multi step flows (fiat to on-chain and vice versa) Handle non-atomic multi-step journeys across chains Design state machines and recovery strategies for partial failure scenarios Support routing mechanics and swap execution considerations such as price impact, liquidity changes, including MEV awareness Build reliable off-chain services that interact with on-chain contracts End-to-End Engineering Ownership Participate in estimation, planning, and execution of projects, features, and integrations Develop and maintain thoroughly tested, high-quality, and performant code Collaborate closely with Product Managers to design scalable implementation strategies Contribute to reliable, maintainable systems that evolve with product needs Participate in incident response and post-mortems Improve reliability, alerting, and system resilience Continuously evolve infrastructure to support growing volume and complexity About You Must-Have Strong backend/platform engineering fundamentals Experience operating production systems with real uptime requirements Hands-on experience interacting with live blockchain networks in production Clear understanding of transaction lifecycle in at least 1 Blockchain and failure recovery You think in failure modes, not just happy paths Strong Signals You can explain a real production incident end-to-end Experience with at least 1 wallet infrastructure (Eth, Bitcoin, Solana) or custody systems Awareness of MEV, slippages, pricing impact and swap execution risks Experience with high-throughput or financial systems Bonus points Experience working at exchanges, custody providers, wallet infrastructure teams, or high-volume DeFi platforms Familiarity with UTXO-based chains (e.g., Bitcoin), including coin selection and fee bumping strategies (RBF / CPFP) Experience designing cross-chain or multi-step transaction orchestration systems Familiarity with blockchain indexing or event ingestion pipelines Understanding of common token standards (ERC-20, SPL) and interacting with smart contracts from backend services Salary Bands: $150,000 - $210,000 \n \n ______________________________________________________________________________________________________ Benefits & Perks ๐Ÿ’ก ๐Ÿ’ฐ Competitive salary package ๐Ÿค Equity package: financial freedom starts with our employees, so all employees have ownership at MoonPay ๐Ÿ“ˆ Pay-for-performance equity bonus: those who drive outsized outcomes receive outsized rewards ๐Ÿš€ Moonshot award: we honor exceptional impact. 10 employees twice a year, each earning a $250,000 equity grant ๐Ÿ“ŠPension: employer contributions from day one ๐ŸŽEmployee referral program: refer great people, earn 10K in USDC ๐Ÿ Flexible Time Off: choose when to work and when to switch off ๐ŸŽ‚ Birthday leave: take the day off to celebrate you ๐Ÿผ Enhanced parental leave: more time with family, no second thought ๐ŸŒ Hybrid working schedule: work fully remotely or from your nearest Moonbase ๐Ÿš† Commuter benefits: public transport to and from the office ๐Ÿฉบ Private healthcare benefits: to protect you and your loved ones ๐Ÿง˜ Wellhub wellness membership: access to gyms, studios, classes, and wellness apps in one membership ๐Ÿค– Unlimited enterprise access to the latest AI tools: Claude, ChatGPT, Gemini and whatever's next ๐Ÿฑ Lunch credit: meals covered on the days you're in the office ๐Ÿช‘ Home office setup allowance: build the home office of your dreams ๐Ÿ‘› Remote working allowance: those working fully remotely get a little extra for utilities ๐ŸŒ• Monthly product budget and zero-fee crypto transactions ๐Ÿ“š $1,000 Annual training budget: we support your learning journey ๐ŸŽฏ High Potential Program: structured development, mentorship, and stretch opportunities โœˆ๏ธ Regular remote company offsites: high-impact in-person sessions and hackathons ๐Ÿšฒ (Ireland) Cycle to Work scheme: tax-efficient bike, gear, and safety kit ๐Ÿ”Œ (UK) EV Salary Sacrifice: lease an electric vehicle through pre-tax salary

This job posting was last updated on 8/11/2026

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