Senior Blockchain Engineer

Moonpay
New York, NY
Hybrid

Who this role is best for

Aimed at senior blockchain engineers who thrive in high-velocity environments and are motivated by impact.

Best fit for

  • Senior engineers with a track record of solving complex problems in high-standards environments
    β€” β€œhigh-standards, high-velocity, high-accountability company building the operating system for value movement”
  • Candidates who are comfortable with AI as a core tool in their daily work
    β€” β€œAI is the default operating mode here. It's woven into every role, and we expect you to use it daily.”
  • Individuals who value ownership and are driven by outcomes rather than titles
    β€” β€œif outcomes excite you more than process, if impact motivates you more than titles”

Things to consider

  • Hybrid work requires regular in-office presence in New York, even for remote employees
    β€” β€œHybrid working schedule: work fully remotely or from your nearest Moonbase”
  • The role demands a high level of autonomy and ownership of complex systems
    β€” β€œreal ownership, and teammates who love winning, building, and doing it together”

How to stand out

  • Highlight experience with blockchain systems and value movement infrastructure in your resume
    β€” β€œbuilding the operating system for value movement”
  • Demonstrate how you've used AI to improve outcomes in your previous roles
    β€” β€œwe expect you to use it daily”
  • Emphasize your ability to drive impact and deliver measurable results
    β€” β€œthose who drive outsized outcomes receive outsized rewards”
  • Demonstrate your experience with tokenized assets, stablecoins, or crypto infrastructure
    β€” β€œcrypto, stablecoins, tokenized assets, and whatever comes next”
Pace Β· Fast PacedCollaboration Β· HighAutonomy Β· MediumDecision Impact Β· CompanyLevel Β· Senior

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • Development of secure and scalable blockchain solutions
  • Integration of AI and machine learning into blockchain systems
  • Compliance with regulatory standards
Typical background
Experience in blockchain technologyBackground in software developmentUnderstanding of cryptocurrency and financial systems

Skills & requirements

Required

Blockchain DevelopmentSmart ContractsCryptocurrencyAPI IntegrationDistributed SystemsSecurity ProtocolsCryptographic AlgorithmsData Structures

Preferred

AI IntegrationMachine LearningCryptocurrency ExchangesTokenizationStablecoinsRegulatory ComplianceCryptocurrency Wallets

Stack & domain

BlockchainAISaasCloudCybersecurityProblem SolvingTeamworkLeadershipCommunicationInnovationFinanceTechnology

About the role

Original posting from Moonpay via Lever

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,Β 

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.

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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

______________________________________________________________________________________________________

Benefits & Perks πŸ’‘

πŸ’° Competitive salary package

🀝 Equity package: financial freedom starts with our employees, so all employees have ownership at MoonPay

πŸ“ˆ Pay-for-performance equity bonus: those who drive outsized outcomes receive outsized rewards

πŸš€ Moonshot award: we honor exceptional impact. 10 employees twice a year, each earning a $250,000 equity grant

πŸ“ŠPension: employer contributions from day one

🎁Employee referral program: refer great people, earn 10K in USDC

🏝 Flexible Time Off: choose when to work and when to switch off

πŸŽ‚ Birthday leave: take the day off to celebrate you

🍼 Enhanced parental leave: more time with family, no second thought

🌍 Hybrid working schedule: work fully remotely or from your nearest Moonbase

πŸš† Commuter benefits: public transport to and from the office

🩺 Private healthcare benefits: to protect you and your loved ones

🧘 Wellhub wellness membership: access to gyms, studios, classes, and wellness apps in one membership

πŸ€– Unlimited enterprise access to the latest AI tools: Claude, ChatGPT, Gemini and whatever's next

🍱 Lunch credit: meals covered on the days you're in the office

πŸͺ‘ Home office setup allowance: build the home office of your dreams

πŸ‘› Remote working allowance: those working fully remotely get a little extra for utilities

πŸŒ• Monthly product budget and zero-fee crypto transactions

πŸ“š $1,000 Annual training budget: we support your learning journey

🎯 High Potential Program: structured development, mentorship, and stretch opportunities

✈️ Regular remote company offsites: high-impact in-person sessions and hackathons

🚲 (Ireland) Cycle to Work scheme: tax-efficient bike, gear, and safety kit

πŸ”Œ (UK) EV Salary Sacrifice: lease an electric vehicle through pre-tax salary

Source: Moonpay careers (Lever)

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