
Software Engineer - Full Stack
San Francisco, CAFull-time$110–270K/yrSeen 2mo agoStill listed 1w ago
Most applications go out cold — see where you stand first. No sign-up to start.
Watch jobs like this. New roles like this one near San Francisco, CA, by email.
Don't just apply. Show up ready.
Olive works from this exact posting.
At a glance
Olive lists jobs from US employers, including remote roles you can work from the United States.
Job overview
This position can be based out of San Francisco, New York, or remote. The role involves building innovative payments products, shaping engineering culture, and creating robust, scalable systems for high‑volume API calls at a fast‑growing startup.
Skills & qualifications
Skills
Qualifications
Full job description
OVERVIEW This position can be based out of San Francisco, New York, or remote (we accept candidates from many states). We're looking for Full-Stack Software Engineers to join our Engineering team. In this role, you will build innovative payments products that delight both engineering and finance teams. As an early member of the engineering team, you will help shape the engineering culture of a fast-growing startup. The core platform at Modern Treasury sits between our customers and their banks. In the same way that Twilio abstracted away the complexity of working with communication networks, we have built an easy-to-use, common interface into the banking system. Our customers use our products to do things like move money to or from their users, automate back-office work, and record their transaction ledgers. The companies that can use Modern Treasury move over $750 trillion a year via bank payments, as compared to only $2 trillion per year on card payments. Our API is often the most critical piece of infrastructure that our customers use. We place a premium on building robust, scalable systems that can sustain a high volume of API calls and exceed the reliability requirements to move money at scale. We complement this with well-thought out interfaces for our users and pride in writing quality API docs. We believe in using the best tool for the job, rather than always using open source or building things ourselves. We actively embrace open source in parts of our system but aren't afraid to roll our own solution for things like writing and parsing bank files. We also contribute to open source (for example, https://www.moderntreasury.com/journal/continuous-accounting-building-on-an-open-source-library). In addition to our API, we have had a web platform since day 1 that is used by accountants, controllers, and engineers. They use our platform to do things like manage payment workflows and monitor their business. As an engineer, you will work with our product team to build products and features for these users. ABOUT MODERN TREASURY Modern Treasury is the operating system for money movement. Our payment operations platform combines a suite of APIs and dashboards to help companies unlock new payments revenue, strengthen customer experiences, and drive efficiency through their business. Our end-to-end platform moves enterprises forward with faster payments, efficient workflows, full data visibility, and seamless bank integrations. WEEK BY WEEK During your first week you will:
- Get to know our leadership, culture, and values
- Onboard with the engineering team
- Ship your first commit on day 1
- Take on 1-2 small tickets to address bugs or make minor improvements
- Read our favorite industry primers
During your first six weeks you will:
- Ship your first major project
- Write your first blog post. We love writing at Modern Treasury (and have been on the front page of Hacker News multiple times with posts like "What Happens When You ACH a Dead Person?" and "How to Build an Insurance Company")
- Shadow a few customer and partner meetings every week
During your first six months you will:
- Work with our product team to scope and ship products for both our engineering and finance users
- Help grow our team by mentoring new engineers, writing internal tooling and documentation, and interviewing new hires
WHAT YOU SHOULD HAVE
- Experience building web applications professionally for 2+ years
- Experience working with SQL/Relational databases
TECHNOLOGIES WE USE
- Ruby on Rails for our backend framework
- React, GraphQL, and Tailwind CSS on the front end
- Postgres for our database
- Redis for caching
- AWS for infrastructure and hosting
- Docker for containerization
- GitHub for source code management
- Buildkite for continuous integration
How this job compares
Set against the 34,041 open Software Engineer jobs on Olive Jobs, counted October 27, 2026.
- Pay
- This posting$110–270K/yr
- California median$165–246K/yr7,363 salary ranges
- US median$140–220K/yr27,240 salary ranges
This range's midpoint, $190K, is 7% below the California median midpoint ($205K) — in the middle half of Software Engineer salary ranges in California.
- Openings
- Olive Jobs lists 9,127 open Software Engineer jobs in California and 34,041 across the US. 7% of them nationwide are listed as remote or flexible.
- Experience
- This posting asks for at least 3 years of experience; Software Engineer postings that state a minimum ask for 5 years at the median (27,547 postings).
- Education
- 12,670 of the 34,041 open Software Engineer jobs (37%) ask for a bachelor's degree or higher.
Counted across the open, public US postings on Olive Jobs on October 27, 2026. Pay medians are the middle values of the low ends and of the high ends of postings that list both ends of a range in the same cadence (a yearly salary or an hourly rate); a range's midpoint is halfway between its ends. Pay and experience figures resting on fewer than 20 postings are left out.
Similar jobs, posted recently
Open roles like this one, listed in the last 30 days.
Software Engineer, Program EngineeringBlock · CA · $218–327K/yrPosted 3w agoPosted 3w ago- Software Engineer, Full Stack - Applications C3 AI · Redwood City, CA · $120–165K/yrPosted 3w agoPosted 3w ago
Software Engineer, Full Stack - Experimentation PlatformDoorDash · San Francisco, CA (Hybrid) · $131–192K/yr
Full Stack Software Engineer - PaymentsSubstack · Remote (Hybrid) · $140–260K/yrPosted 2w agoPosted 2w ago
Full Stack Software EngineerJustAI · San Francisco, CA · $120–160K/yr
You've read the whole posting — now see how you match it.