Staff Software Engineer – Financial Platform

🔥 1 minute ago

☕ Washington – Remote

☕ Washington – Remote

💵 $263.6k - $395.4k / year

⏰ Full Time

🔴 Lead

🧑‍💻 Full-stack Engineer

🦅 H1B Visa Sponsor

This company has sponsored H1B visas in the past.

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Block

WebsiteLinkedInAll Job Openings

10,000+ employees

Founded 1990

💼 Consulting

📣 Marketing

💳 Fintech

Consulting • Marketing • Fintech

Block is a technology company that aims to increase access to the global economy through its various brands. Square provides commerce and financial services designed for sellers, while Cash App offers an easy platform for spending, sending, and storing money. Afterpay allows customers to manage their spending over time. Additionally, TIDAL empowers artists by providing them with tools for entrepreneurship, and Bitkey and Proto focus on bitcoin and related services. Together, these services contribute to building an open financial system accessible to everyone.

📋 Description

• Serve as a deep technical expert on global card networks and interpret specifications, message flows, certification requirements, mandates, and production behavior • Work directly with card networks to influence requirements, resolve ambiguity, and secure outcomes for Block • Lead complex, ambiguous engineering problems at the network boundary across teams, systems, and domains • Partner with technical leads, program DRIs, and senior stakeholders to shape solutions • Write production code, build certification and conformance tooling, analyze network messages, review designs and code, and debug at protocol and field level • Drive network certification and mandatory release cycles end to end • Establish shared frameworks, standards, tooling, and practices • Provide design guidance, code reviews, mentorship, documentation, and technical judgment • Apply AI-powered tools throughout the engineering lifecycle • Participate in on-call, incident response, and continuous reliability and correctness improvements

🎯 Requirements

• Deep, current expertise with at least one major card network, ideally Visa • Direct connectivity, ISO 8583, authorization and clearing flows, stand-in processing, specifications, certification, and mandate cycles • Personally built, certified, or operated a live direct network connection • Experience working directly with card networks to achieve rulings, exceptions, extensions, configuration changes, defect fixes, or certification outcomes • Strong hands-on software engineering experience building and operating highly reliable financial or payments systems at scale • Experience leading technically complex, ambiguous work across team boundaries and influencing technical direction • Experience creating frameworks, standards, tooling, architecture, or practices adopted by other engineers and teams • Broad understanding of the card lifecycle • Working knowledge of Mastercard and American Express • Fluency with AI-assisted engineering workflows and sound judgment evaluating AI-generated output • Willingness to participate in an on-call rotation for critical financial systems

🏖️ Benefits

• Remote work • Medical insurance • Flexible time off • Retirement savings plans • Modern family planning • Reasonable accommodations throughout the recruitment process

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