---
title: 'Senior Software Engineer at Finix'
canonical: 'https://feeny.ai/job/senior-software-engineer-finix-chicago-wa8m0hq8rn76'
type: 'job'
last_seen: '2026-10-17'
---

# Senior Software Engineer at Finix

- **Company:** Finix
- **Location:** Chicago, IL
- **Compensation:** $150k–$220k
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2026-09-16
- **Last confirmed live:** 2026-10-17
- **Apply:** https://jobs.lever.co/finix/c73695d5-fc3e-43ec-b380-765fd20595ff

## Job description

## About Finix

Finix is building the global operating system for fintech, starting with payments. From startups to publicly traded companies, Finix processes tens of billions of dollars annually both in-store and online. Finix was founded in 2015 and is headquartered in San Francisco.

To date Finix has raised over $200M, including a $75M Series C led by Acrew Capital and Lightspeed Venture Partners and backed by American Express Ventures, Bain Capital Ventures, Homebrew, Inspired Capital, Visa, and others

## About the role

The engineering team owns the delivery and stability of our product end to end. Since Finix serves as the complete payment platform of our customers’, our engineering team owns our customers’ ability to capture revenue. The Sr. Software Engineer role centers around envisioning superior technical solutions to our customers’ payment needs, leading its implementation and continuously ensuring reliable service to our customers. You will have broad autonomy and responsibility for formulating the best solution possible and working with your peers to deliver your vision. Finix is looking for a team member to join our engineering team who brings exceptional technical acumen, attention to detail, interest to grow and an obsession with building excellent, performing and scalable software.

You will

- Deep dive into our customers’ needs, and work with product management to define new services
- Own the technical vision, implementation, best practices and infrastructure within your domain
- Develop close relationships with product management and peer engineers
- Become an expert in your payments domain and mentor junior software engineers
- Proactively improve our architecture, frameworks, tooling, automation, and best practices

You are

- Experienced in designing, implementing, and testing superior software
- Comfortable continuously delivering code, infrastructure, tests and features to production
- Excited about finding new and better ways to make software reliable, scale and perform
- Obsessed with finding edge cases, understanding requirements and design implications
- Proactive in monitoring running systems and troubleshooting production issues
- Always looking for ways to grow, opportunities to mentor and collaborate with peers

You have

- Have 4+ years of experience building and designing systems with several lifecycles
- Extensive experience implementing secure APIs, highly available and observable services
- Led and mentored more junior software engineers
- Kept tight control on multiple competing priorities and have strong ability to multitask
- Raised the bar on every project you were involved in

## About Finix

## Company Overview
- **One-liner**: Finix provides a payment infrastructure platform that enables businesses to accept, process, and manage payments through a developer-friendly API and white-label tools.
- **Entity Type**: Private (Series C, $204M total funding)
- **Headquarters**: San Francisco, California, United States
- **Founded**: 2015
- **Founders**: Richie Serna (CEO)

## Core Business
- Primary industry/industries: Payments infrastructure, Fintech
- Target customers: Fast-growing startups, SaaS platforms, marketplaces, e-commerce businesses, and large-scale enterprises
- Mission or purpose statement: “To build the most accessible financial services ecosystem in history, starting with payments.”

## Products & Services
- **Finix Payment Platform**: An end-to-end, all-in-one payment solution with a universal API and intuitive dashboard. Businesses can accept and embed payments, automate workflows (reconciliation, underwriting, dispute management), manage fees and compliance, and access automated reporting. It supports payments, payouts, recurring billing, risk management, and compliance in a single system.
- **White-Label Tools**: No-code and low-code tools that let businesses embed a seamless, branded payment experience for their own customers.
- **Developer SDKs & APIs**: APIs and SDKs (including for Android) enabling custom payment experiences and integrations with various payment terminal providers.

## Market Standing
- **Valuation**: Not disclosed (private company)
- **Key Metric**: Total Funding of $204M, with a $75M Series C round raised in 2024. Annual revenue estimated at $10M (per LinkedIn estimates).
- **Notable Investors/Partners**: Acrew Capital (led Series C), Leap Global, Lightspeed Venture Partners, Citi Ventures, Tribeca Venture Partners, American Express Ventures, Bain Capital Ventures, Homebrew, Insight Partners, Inspired Capital, Sequoia Capital, Visa, and Cap Table Coalition.
- **Growth Signals**: Processes billions of dollars in transactions annually. Grew headcount by ~17.3% YoY. Serves customers including Lunchbox, AgVend, Clubessential, Passport, Vroom, and Meadow. Has expanded into Canada and operates across the U.S. and Canada.

## Competitive Advantages
- **Full-Stack Acquirer/Processor**: Finix is a full-stack acquirer processor, meaning it provides the underlying processing infrastructure rather than just a gateway, giving customers more control and access to better margins.
- **Customizability & Revenue Optimization**: Offers hundreds of configuration options and a choice of fee settings to optimize payments profitability, including per-payment-method pricing, transaction volume discounts, and accelerated settlement.
- **Developer-First Approach**: A “get started in hours, not days” API with thorough documentation, a test environment, and a team dedicated to helping customers design solutions.
- **High Reliability & Uptime**: Industry-leading 99.999% uptime guarantee.

## Strategic Focus
- **Global Expansion**: Building the “global operating system for fintech,” with a specific focus on removing technical, regulatory, and compliance barriers to expand access to payments and fintech globally.
- **Product Depth**: Continuing to enhance the platform with more automation, reporting tools, and embedded payment capabilities to serve the full lifecycle of payment operations for growing businesses.

## Why Work Here
- **Culture & Mission**: Focused on breaking down barriers in financial services and making technology accessible. Emphasis on “people-first” culture with values like “act like an owner.”
- **Remote/Hybrid/Office Policy**: Offices in San Francisco (SOMA district) and Chicago (West Loop). Many roles are US-Remote. Specific job postings may be location-specific (e.g., Toronto role in the job description).
- **Compensation & Benefits**: Competitive salary and equity. Benefits include generous paid time off, wellness days, flexible health plans (medical, dental, vision), 100% benefits coverage for employees and dependents, life insurance, and inclusive parental leave.
- **Engineering Culture**: Developer-friendly environment; the company’s own product is an API, so engineers work on solving complex payments and infrastructure problems. Emphasis on owning implementation, best practices, and architecture.

## Sources
1. [finix.com](https://finix.com/)
2. [finix.com/about-finix](https://finix.com/about-finix)
3. [finix.com/careers](https://finix.com/careers)
4. [LinkedIn](https://www.linkedin.com/company/finix-payments)
5. [Jobs.lever.co (Android Engineer Job Posting)](https://jobs.lever.co/finix/921435a1-3d41-4e4b-a6d3-aec375880305)

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