Platform Engineer: Developer Infrastructure

Slash; San Francisco (CA); On-site; USD 120,000 - 180,000; Full time

Job summary

A leading fintech company in San Francisco is seeking a Platform Engineer focused on Developer Infrastructure to enhance the developer experience. The role involves improving CI/CD processes, maintaining internal tooling, and collaborating with product engineers to streamline workflows. This position offers high autonomy, comprehensive benefits, and unlimited vacation, making it ideal for engineers passionate about building for other engineers.

Benefits

Opportunity for high growth

High autonomy + ownership culture

Comprehensive health + benefits plan

Working out of downtown San Francisco office

Unlimited Vacation

Qualifications

• Strong TypeScript skills with experience in complex behavior modeling.
• Experience building or contributing to internal frameworks and shared libraries.
• Passion for improving developer experience.

Responsibilities

• Own and improve the developer experience across the monorepo.
• Design and maintain internal tooling around financial ledger and eventing systems.
• Identify and eliminate friction in local development and deployment workflows.

Skills

TypeScript

Developer Experience

CI/CD

Job description

About Slash

Slash is building the future of business banking, one industry at a time. We believe businesses deserve financial infrastructure tailored to how they actually operate. That's why we're creating a new category of business banking. We combine the reliability of traditional banking (high yields, competitive rewards, and comprehensive security) with industry-specific features that make businesses more efficient, more competitive, and more profitable.

Started in 2021, Slash is one of the fastest growing fintechs in the world and we power over three billion dollars a year in business purchasing across numerous industries. We're backed by some of the best investors in the world including Menlo Ventures, NEA, Y Combinator, Stanford University, and the founders of Tinder and Plaid. Slash is headquartered in San Francisco, and has a strong in-person culture.

About the role

Slash is, at its core, a technology company and is on a mission to build the best engineering team in the world. We’re looking for a Platform Engineer focused on Developer Infrastructure to build the internal systems for developers that power product velocity at Slash.

You’ll be responsible for the developer experience across our monorepo — from CI, to code generation and dev tooling, to infrastructure around our internal financial ledger and event systems. You’ll work closely with product engineers to eliminate bottlenecks, create guardrails, and make it feel effortless to build, test, and ship financial software.

This role is ideal for engineers who love building for other engineers — especially those who believe great infra is quiet, elegant, and built to scale with the team. Your work will directly shape how quickly and safely we can move as we grow.

What you’ll be doing:

• Own and improve the developer experience across our monorepo — including build speed, typechecking, testing infra, and CI/CD pipelines

• Design and maintain internal tooling around our financial ledger , eventing systems, and product scaffolding

• Identify and eliminate friction in local development, onboarding, and deployment workflows

• Contribute to internal libraries and codegen tools that reduce duplication and make shipping product safer

• Drive best practices in DX, code health, and developer productivity across the company

We’re Looking for Someone Who:

• Enjoys building for engineers — and has strong opinions and good taste on what makes great DX

• Writes deep, expressive TypeScript — and enjoys pushing the type system to model complex behavior

• Has built or contributed to internal frameworks, shared libraries, or codegen tools

What's in it for You:

• Opportunity for high growth

• High autonomy + ownership culture

• Comprehensive health + benefits plan

• Working out of our downtown San Francisco office space

• Unlimited Vacation