---
title: 'Software Engineer at Slash'
canonical: 'https://feeny.ai/job/software-engineer-slash-san-francisco-ce9nx4ye4n1k'
type: 'job'
last_seen: '2026-09-11'
---

# Software Engineer at Slash

- **Company:** Slash
- **Location:** San Francisco, CA
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2024-02-06
- **Last confirmed live:** 2026-09-11
- **Apply:** https://jobs.gem.com/slash/am9icG9zdDo4v5daixMGUIKaKwNgduYh

## Job description

## About Slash

Slash is the premier banking platform for small businesses. Our all in one virtual card, bill pay, accounting, and invoicing platform helps entrepreneurs stay on top of their finances, allowing them to spend more time doing what they love. Slash powers hundreds of millions of dollars a year in purchases. Our investors include Y Combinator, Stanford University, NEA, and the founders of Tinder and Plaid.

## About the role

Slash is, at its core, an engineering company, and is on a mission to build the best engineering team. We are looking for full stack engineers who are excited to be part of our early story. Our ideal candidate has a strong sense of ownership and enjoys owning projects from inception to scaling in production.

What you’ll be doing:

- Building the logic and systems that power our core financial product, guard against bad actors, and categorize customers into high and low risk — all at scale under demanding latency constraints.
- Setting code-standards, shaping our engineering culture, contributing to our roadmap, and talking to customers to figure out how we can solve their problems with software.
- Designing and building scalable backend systems that can handle hundreds of thousands of requests per second with Typescript.
- Building our production monitoring, logging, metrics, and analytics stack.
- Writing libraries and frameworks to speed up internal development and complicated workflows.
- Helping us put together an amazing team of talented and mission-driven engineers.

We’re looking for someone who:

- Is looking to take full ownership of their work and make an immediate impact
- Thrives in a dynamic and fast-paced work environment
- Loves writing code and values deep technical knowledge as much as delivering great product experiences.
- Has experience shipping high-quality software products
- Interest in working with our tech stack (React, Typescript, NodeJS, Redis, CockroachDB)
- Knowledge of functional programming, Javascript, and Typescript’s type-systems is appreciated, but not required
- Experience working with an IaC such as Terraform to ship code on AWS is interesting, but not required
- Experience scaling distributed systems to handle high levels of burst traffic

Bonus points for

- Familiarity with any part of our tech stack (React, Typescript, NodeJS, Redis, CockroachDB)
- Extensive knowledge of functional programming, Javascript, and Typescript’s type-system
- Experience working with an IaC such as Terraform to ship code on AWS
- Experience scaling distributed systems to handle high levels of burst traffic

What's in it for You:

- Opportunity for high growth
- High autonomy + ownership culture
- Competitive pay + equity package
- Unlimited PTO, Health, Vision, and Dental coverage
- Free lunch and dinner daily at the office
- Latest 16 inch Macbook Pro

## About Slash

## Company Overview
- **One-liner**: Slash is a business banking and financial operations platform that combines high-yield deposit accounts, corporate cards, expense management, accounting automation, and stablecoin payments for mid-market companies.
- **Entity Type**: Private (Series C, $100M raised in 2026 at $1.4B valuation)
- **Headquarters**: San Francisco, California, United States
- **Founded**: 2021
- **Founders**: Victor Cardenas (CEO), Kevin Bai (CTO)

## Core Business
- Primary industry/industries: Financial Services – Business Banking, Payments, Fintech
- Target customers: B2B – mid-market businesses, startups, and enterprises; 6,000+ customers across 100+ countries
- Mission or purpose statement: “bank the entire internet” by giving every business owner the financial tools they need to win [slash.com](https://slash.com/company/careers)

## Products & Services
- **Slash Deposit Accounts**: USD business bank accounts with free outgoing wire and ACH transfers, high yield on treasury balances
- **Slash Corporate Cards**: Virtual and physical cards with up to 2% cash back, category-leading reseller card
- **Expense Management & Accounting Automation**: Free software including invoicing, bill pay, expense tracking, and integrations with major accounting platforms (e.g., QuickBooks Online)
- **Slash API**: Card creation and payments API for embedded finance
- **Global Payments & Stablecoin Payments**: Cross-border payments and stablecoin-based transactions
- **Twin (AI Financial Agent)**: Launched in 2026 – an AI-powered financial assistant for business owners
- **Slash Mobile App**: Full banking and spend management on mobile

## Market Standing
- **Valuation/Market Cap**: $1.4 billion (Series C, 2026)
- **Key Metric**: $40 billion annualized payment volume (as of 2026); $1 billion in assets under management; 6,000+ customers
- **Notable Investors/Partners**: Y Combinator (S21), NEA, Goodwater Capital, Menlo Ventures, Stanford University, founders of Tinder and Plaid
- **Growth Signals**: 100% headcount growth year-over-year (+100% YoY, +38 people to ~55 employees); launched Twin AI agent in 2026; surpassed $1B AUM and $40B payment volume; raised $100M Series C at $1.4B valuation

## Competitive Advantages
- “Costco of business banking” – combines highest cashback on card spend with highest yield on treasury accounts, plus free software suite
- Industry-specific features for verticals (e.g., healthcare, enterprise finance)
- Available globally – businesses in 100+ countries can sign up for USD accounts
- Strong investor backing and Y Combinator pedigree

## Strategic Focus
- Expanding AI-powered financial agent (Twin) to automate finance workflows
- Deepening vertical-specific solutions (e.g., healthcare, accounting firm partnerships)
- Scaling stablecoin and cross-border payment capabilities
- Growing enterprise and mid-market customer base

## Why Work Here
- 100% hardcore in-person culture at San Francisco office (collaboration-driven, daily presence expected)
- Perks: competitive salary + equity, free lunch every day, free dinner if staying past 9 PM, MacBook Pro, comprehensive health/vision/dental benefits
- Mission-driven work to “bank the entire internet” and modernize business finance
- Rapidly growing company (1.4B valuation, $40B payment volume) with significant career growth opportunity – open roles in AI, engineering, stablecoin, product, and more
- Engineering culture emphasizes high ownership, hustle, and winning mindset

## Sources
1. [slash.com](https://slash.com/company/careers) – Careers page with culture, perks, open roles
2. [slash.com](https://slash.com/company/about) – About page with timeline, funding, metrics, executive team
3. [linkedin.com](https://linkedin.com/company/joinslash) – LinkedIn company page with headcount, reviews, offices
4. [ycombinator.com](https://www.ycombinator.com/companies/slash) – Y Combinator profile with product description, funding, customers
5. [builtinsf.com](https://www.builtinsf.com/company/slash-slashcom) – Built In SF profile with additional metrics

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