Senior Blockchain Engineer — Remote & High-Impact

Inflection (Angel List Syndicate); New York (NY); On-site; USD 150,000 - 210,000; Full time

Benefits offered by this job

Equity package

Private healthcare

Remote work

Annual training budget

Lunch credit

Job summary

MoonPay is seeking engineers to design and optimize high-volume transaction broadcasting pipelines and lifecycle management. You will contribute to wallet infrastructure and automate processes to ensure safety and reliability across cross-chain flows.

This role emphasizes end-to-end ownership, incident response, and building scalable, compliant systems for value movement. The team values performance, reliability, and the ability to operate across distributed networks.

Qualifications

• 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.

Responsibilities

• Design and improve high-volume transaction broadcasting pipelines and manage transaction lifecycle.
• Contribute to wallet infrastructure and automation systems; implement safe parallel transaction handling.
• Build infrastructure supporting cross chain and multi-step flows; design state machines and recovery strategies.
• Own end-to-end engineering: estimation, planning, execution, testing, and incident response.

Skills

Backend engineering

Production systems

Live blockchain networks

Transaction lifecycle

Failure modes

Incident handling

Wallet infrastructure

MEV awareness

High-throughput systems

Job description

MoonPay is seeking engineers to design and optimize high-volume transaction broadcasting pipelines and lifecycle management. You will contribute to wallet infrastructure and automate processes to ensure safety and reliability across cross-chain flows.

This role emphasizes end-to-end ownership, incident response, and building scalable, compliant systems for value movement. The team values performance, reliability, and the ability to operate across distributed networks.