Block
Staff Software Engineer, Financial Platform - Issuing
$264K–$395K
Bay Area, CA, United States of America +1 · Remote · Staff · Full-time · Posted Sep 10, 2026
- Location
- Bay Area, CA, United States of America
US - CA - Bay Area - Remote
About the job
Build and operate Block’s card issuing platform, focusing on network integrations, certification, transaction processing, and reliable financial systems.
What you'll do
- Lead complex engineering work at card-network boundaries, including certification and mandatory release cycles.
- Build production systems and tooling, analyze network messages, and debug protocol-level issues; work directly with networks to resolve requirements and secure outcomes.
- Set shared engineering practices, mentor engineers, and improve system reliability through operational ownership and AI-assisted workflows.
What they ask for
- Deep, current expertise with at least one major card network and direct network connectivity; personally built, certified, or operated a live direct connection.
- Strong hands-on experience building and operating reliable financial or payments systems at scale.
- Track record leading complex, ambiguous cross-team work and influencing technical direction.
- Experience creating technical frameworks, standards, tooling, architecture, or practices adopted by other engineers or teams.
Nice to have
- Ideally, expertise with Visa; working knowledge of Mastercard and American Express is also stated.
- Broad card-lifecycle knowledge across areas such as issuance, authorization, settlement, disputes, or fraud.
Pay
$263,600 — $395,400 USD (base salary; Zone A); $263,600 — $395,400 USD (base salary; Zone B); $263,600 — $395,400 USD (base salary; Zone C); $263,600 — $395,400 USD (base salary; Zone D)
Tools
Visa, ISO 8583, Mastercard, American Express
AI focus
Use AI-powered tools throughout engineering to improve velocity and quality, establish team patterns, and evaluate AI-generated output.
Model-written summary · the original posting is authoritative