Block
Staff Software Engineer, Payments Acquiring
$264K–$395K
Bay Area, CA, United States of America +1 · Remote · Staff · Full-time · Posted Oct 8, 2026
- Location
- Bay Area, CA, United States of America
US - CA - Bay Area - Remote
About the job
Leads hands-on engineering projects that expand Block’s card acquiring connections and improve payment reliability and cost across Square, Cash App, and Afterpay.
What you'll do
- Lead one or two technically complex acquiring projects from design through production, including network and acquirer connections or network mandates.
- Build and operate payment systems and tooling; analyze payment messages, make routing and processing decisions, and support on-call and incident response.
- Set technical standards and frameworks, guide other engineers, and build with AI agents across the engineering lifecycle.
What they ask for
- Deep card-payments experience building or operating network, acquirer, or processor integrations at the message level (ISO 8583 or an acquirer’s host format).
- Experience with complex card transactions, such as partial or incremental authorizations, reversals, tips, currency conversion, and interchange qualification.
- Strong hands-on engineering experience with highly reliable financial or payments systems at scale, and a track record leading complex projects and setting technical direction.
- Daily experience building with AI coding agents, good judgment about their output, and willingness to participate in an on-call rotation.
Nice to have
- Acquiring or merchant-side experience; direct network connection experience is a strong plus.
- ISO 20022 experience.
Pay
$263,600 — $395,400 USD (base salary)
Tools
ISO 8583, ISO 20022
AI focus
Build with AI agents across the engineering lifecycle and help establish safe usage patterns for systems that move money; daily experience with AI coding agents is required.
Model-written summary · the original posting is authoritative