Infrastructure Engineer

EQL Tech (sales & engineering talent); Phoenix (AZ); On-site; USD 90,000 - 130,000; Full time

Benefits offered by this job

Generous Founding Equity

Top-Tier Backing

Relocation Support

Comprehensive Visa Sponsorship

Unmatched Impact

Job summary

A tech firm specializing in sales and engineering talent is seeking an Infrastructure Engineer for in-office work in Phoenix, AZ. The role involves designing reliable money movement flows, building high-trust reconciliation systems, and ensuring operational risk minimization. Candidates should have a passion for accuracy in financial transactions and a strong understanding of banking infrastructure. Benefits include equity and comprehensive visa support.

Qualifications

• Obsessive about correctness and details in financial transactions.
• Build systems expecting real-world unreliability.
• Desire ownership over payment systems.
• Mindset for high-auditability and tracing transactions.
• Experience with specific card and banking tools is a plus.

Responsibilities

• Design money movement flow and manage transaction lifecycle.
• Build reliable reconciliation systems for financial data.
• Minimize operational risks in financial transactions.
• Own payment systems architecture for secure financial handling.
• Ensure ledger integrity through automated reconciliation.

Skills

Correctness

System Reliability

Ownership

Auditability

Experience with banking infrastructure

Job description

Location: San Francisco, CA or Phoenix, AZ (In-Office)

Role

Infrastructure Engineer

Responsibilities

• Design a money movement flow: ledgered internal state, transaction lifecycle management, idempotency, retries, and deterministic replay so we can reason about every flow
• Build high‑trust, reliable reconciliation: daily/continuous reconciliation between internal ledger, card network events, banking events, and vendor/provider reports — and the tooling to investigate mismatches fast
• Minimize operational risk: build guardrails that prevent bad states (double‑spend, duplicate webhook processing, inconsistent balances, orphaned settlements)
• Payment Systems Architecture: Own and evolve a multi‑service monorepo spanning an event‑driven pipeline, a payments API (onboarding, credit, cards), balance healthchecks, and regulatory reporting jobs. Make architecture‑level decisions on how to securely and reliably handle billions of dollars in state‑funded educational payments, including card issuing infrastructure, processor integrations, and fraud and credit risk controls
• Ledger Integrity Reconciliation: Be responsible for keeping independent ledgers aligned at all times despite asynchronous event processing. Build and improve automated healthcheck and reconciliation systems that catch discrepancies the moment they appear

Qualifications

• Obsessive About Correctness: You know that a missing cent compounds into a crisis. Retries don't erase history, idempotency is deliberate, and validation belongs where truth lives — the database
• Assumes the Real World is Unreliable: Banks go down, queues back up, vendors change APIs without warning. You build systems that stay predictable anyway
• Craves Ownership: You want to be the single person everyone trusts when money is moving. You're not looking to contribute to a system — you want to have engineered it so that emergencies are rare and recoverable when they happen
• High‑Auditability Mindset: You're willing to go deep on a single missing transaction and trace it through every layer of the stack. You build tooling that lets you and your team investigate mismatches fast
• Able to work in‑person with the team in San Francisco, CA or Phoenix, AZ (visa support available)
• Experience with Lithic, Column, LoanPro, Stripe Issuing, or comparable card and banking infrastructure is a strong plus

Benefits

• Generous Founding Equity
• Top‑Tier Backing
• Relocation Support
• Comprehensive Visa Sponsorship
• Unmatched Impact