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, 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 stablecoins. 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 senior individual contributor role with broad influence across Product, Platform, and Infrastructure teams.

WHAT YOU’LL DO Lead 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 features

WHAT YOU SHOULD HAVE Required 8+ 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 USE Ruby on Rails for our backend

React, GraphQL, and Tailwind CSS on the front end

Postgres for our database

AWS for infrastructure and hosting

Docker for containerization

GitHub for source code management

Buildkite for continuous integration

ABOUT MODERN TREASURY Modern 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 stablecoins—plus built-in compliance, ledgering, and reporting—Modern Treasury enables businesses to move money instantly, reliably, and at scale.

Modern Treasury is committed to equal employment opportunity and does not discriminate in any employment opportunities or practices based on an individual's race, color, creed, gender (including gender identity and gender expression), religion (all aspects of religious beliefs, observance or practice, including religious dress or grooming practices), marital status, registered domestic partner status, age, national origin or ancestry (including language use restrictions and possession of a driver’s license issued under California Vehicle Code section 12801.9), natural hair, physical or mental disability, political affiliation, medical condition (including cancer or a record or history of cancer, and genetic characteristics), sex (including pregnancy, childbirth, breastfeeding or related medical condition), genetic information, sexual orientation, military and veteran status or any other consideration made unlawful by federal, state, or local laws. It also prohibits unlawful discrimination based on the perception that anyone has any of those characteristics, or is associated with a person who has or is perceived as having any of those characteristics.

Modern Treasury participates in E-Verify and will provide the federal government with your Form I-9 information to confirm that you are authorized to work in the U.S.