Full-Time

Senior Software Engineer

Updated on 9/10/2026

grifin

grifin

11-50 employees

Mobile app automating micro-investing via purchases

No salary listed

Remote in USA

Remote

Category
Software Engineering (2)
,
Required Skills
Express.js
NoSQL
AWS
MongoDB
REST APIs
React Native

Get referred to grifin

See people who can refer or advise you

Requirements
  • You have 5+ years in professional software engineering.
  • You have 3+ years building mobile apps, preferably with React Native.
  • You are proficient with MongoDB or similar NoSQL databases.
  • You are experienced in ExpressJS for server-side logic.
  • You are familiar with Amazon Web Services, including Elastic Container Service, Elastic Compute Cloud, Step Functions, Lambda, and Simple Queue Service.
  • You are skilled in building and securing REST APIs.
  • You are able to integrate APIs into mobile applications.
  • You have previous startup success as a founder or very early-stage team member, including participation in a successful acquisition or scaling from Series A to an initial public offering.
Responsibilities
  • Contribute to developing key product features used by millions of individuals and families.
  • Help shape the culture of the engineering organization and drive best practices.
  • Explore new ways of solving challenging problems at scale.
  • Work closely with product and design to understand customer needs.
  • Represent the customer voice in how solutions are architected.
Desired Qualifications
  • React Native experience is preferred.

Grifin is a fintech app that makes investing accessible by automatically turning everyday purchases into stock buys. The core product is a mobile app (iOS and Android) where users link cards; Grifin uses spending data to automatically invest small amounts into the stocks of the brands they shop at, often via fractional shares, and can build a diversified portfolio. It charges a flat monthly subscription for access to automatic investing, fractional shares, diversification, and educational content. What sets Grifin apart is the direct link between daily spending and investing, making the stock market feel more relatable to retail investors—especially millennials and Gen Z—while providing educational resources to help users learn about personal finance. The company’s goal is to simplify investing, removing friction and intimidation so people can invest in brands they use and love as part of their everyday life.

Company Size

11-50

Company Stage

Series A

Total Funding

$23M

Headquarters

Tampa, Florida

Founded

2016

Get referred to grifin

See people who can refer or advise you

Simplify Jobs

Simplify's Take

What believers are saying

  • Over 500,000 registered users show real consumer demand for behavior-linked investing.
  • July 2026 Price.com partnership adds cashback-funded investing and free cross-membership.
  • Grifin Pro pricing and weekly automation create recurring revenue and habit-driven retention.

What critics are saying

  • Robinhood launched custodial accounts and Family Hub in March 2026, stealing beginner households.
  • Acorns already has 14 million customers and $30 billion invested, dwarfing Grifin's scale.
  • A weak subscription funnel forces reliance on niche habit formation; churn kills unit economics.

What makes grifin unique

  • Adaptive Investing turns shopping behavior into personalized stock buys, not generic round-ups.
  • Price.com partnership links cashback to investing, widening acquisition without extra user spending.
  • SIPC-protected brokerage accounts and $47.5 million invested build trust and proof.

Help us improve and share your feedback! Did you find this helpful?

Benefits

Company Equity

Remote Work Options

Home Office Stipend

Unlimited Paid Time Off

Health Insurance

Wellness Program

Professional Development Budget

Growth & Insights and Company News

Headcount

6 month growth

0%

1 year growth

0%

2 year growth

-2%
Yahoo Finance
Jul 14th, 2026
Price.com and Grifin partner to convert cashback into stock ownership

Price.com and Grifin have partnered to allow shoppers to convert cashback into stock purchases. Price.com Pro members receive Grifin membership at no additional cost, and vice versa. The partnership enables users to invest cashback earned through Price.com purchases into stocks of the companies they shop from, with a minimum investment of $1. Price.com is an AI-powered savings application, whilst Grifin is an investing platform that connects spending to personalised investments. The partnership targets consumers feeling financially squeezed, particularly younger generations experiencing what's termed "financial nihilism". Price.com Pro members receive a 50% increase in cashback rates. Members maintain full control over their investments, including which companies to support and when to pause contributions.

The Business Journals
Oct 20th, 2025
Grifin: $11M Series A for Fun Investing

Grifin's CEO discusses the fintech app's growth following an $11M Series A funding round. The company aims to make investing enjoyable.

MD Financial Management
Jun 23rd, 2025
MD FinTech deals weekly: June 16-22

Grifin, fintech app that lets users invest automatically where they shop, raised $11M in a Series A led by Nava Ventures, with participation of Alloy Labs, Draper Associates, Gaingels, NevCaut Ventures, TTV Capital.

PR Newswire
Jun 18th, 2025
Grifin Raises $11M Series A to Make Investing as Easy-And Automatic-as Everyday Spending

With this round, Freddie Martignetti, Partner at Nava Ventures, will join Grifin's Board of Directors.

StreetInsider
Jun 18th, 2025
Grifin Raises $11M to Simplify Investing

Grifin, an investment app, announced an $11 million Series A funding round led by Nava Ventures. The app links investing to daily spending, allowing users to automatically invest in brands they purchase from. With over 500k users, Grifin aims to simplify investing and has seen rapid growth, particularly among women aged 40-60. The new funds will expand the team, partner with HR platforms, and enhance offerings. Grifin has raised over $20 million to date.