Software Engineer - Infrastructure

OVERVIEW This position can be based out of San Francisco, New York, or remote (we accept candidates from the following states: AZ, CA, CO, CT, FL, GA, HI, IL, MA, MD, MI, MN, MT, NC, NJ, NV, NY, OH, OK, OR, PA, TN, TX, UT, WA, WI).Modern Treasury is expanding deeper into money movement. We’re building new products that will let customers move funds across both traditional rails and emerging technologies, including stable coins.

You’ll help design, deploy and operate the infrastructure that makes this possible.

This is a hands-on devops role with strong ownership over infrastructure architecture and platform automation.

ABOUT

THE ROLE This role sits at the intersection of infrastructure, platform engineering and security. You’ll define how Modern Treasury scales and operates our infrastructure, and guide teams toward cohesive architectural patterns.

You will set direction and build for infrastructure systems that support:

Multi-rail money movement

Real-time payment flows

Ledger-backed transaction processing

High-availability payment orchestration

This is a staff individual contributor role with broad influence across Product, Platform, and Infrastructure teams.

WHAT YOU’LL DOLead architecture for AWS infrastructure, container orchestration, and CI/CD to support scalable payment systems

Standardize automation and infrastructure-as-code to provision, scale, and operate high-volume ledger and transaction platforms

Reduce operational overhead through tooling, streamlined workflows, and engineering standards uplift

Optimize performance, reliability, and observability across real-time and rails-specific infrastructure

Define service ownership and operational models, aligning platform and product teams on scalable rail architecture

Contribute to infrastructure and security strategy for new payment rails, including FBO structures, stablecoin integrations, and compliance-focused featuresWHAT YOU SHOULD HAVERequired8+ years in Devops, or infrastructure engineering

Strong track record of setting technical direction without direct authority

Experience building internal platforms that abstract complexity away from product teams

Strong experience with:

Designing and operating distributed systems AWS infrastructure at scale

Infrastructure as Code (Terraform or similar)
CI/CD systems and automation pipelines

Containerized environments (Docker)
Observability and performance tuning for production systems

Experience with application and product security

Experience scaling systems that process high-volume workloads

Experience defining reliability standards and operational maturity models

What Sets You Apart Experience architecting infrastructure for multiple payment rails simultaneously

Experience scaling systems that process high-volume financial or transactional workloads

Understanding of payment rail mechanics (ACH, wires, RTP, cards, etc.)Familiarity with security and risk standards for money movement

Ability to balance immediate delivery needs with long-term infrastructure strategy TECHNOLOGIES WE USERuby on Rails for our backend

React, GraphQL, and Tailwind CSS on the front end Postgres for our databaseAWS for infrastructure and hosting

Docker for containerization

GitHub for source code management

Buildkite for continuous integration ABOUT MODERN TREASURYModern Treasury provides trusted infrastructure for money movement. The company helps teams launch and scale payment experiences in days, not months. With best-in-class developer tools and a single API for fiat and stable coins—plus built-in compliance, ledgering, and reporting—Modern Treasury enables businesses to move money instantly, reliably, and ern Treasury is committed to equal employment opportunity and does not discriminate in any employment opportunities or practices based…