Full Stack Engineering Intern

Posted on Apr 04, 2023

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Job Details

Full Time
🌎 Worldwide

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About Expensify

Expensify is a payments superapp that helps individuals and businesses around the world simplify the way they manage money. More than 10 million people use Expensify's free features, which include corporate cards, expense tracking, next-day reimbursement, invoicing, bill pay, and travel booking in one app. All free. Whether you own a small business, manage a team, or close the books for your clients, Expensify makes it easy so you have more time to focus on what really matters.

The Position

At Expensify, our unique approach to solving a real-world problem allows people to spend less time managing expenses and more time pursuing their real goals. Today, more than 10 million people and 80,000 companies use Expensify across the globe — that’s more customers than the rest of the industry combined. We’re the fastest-growing receipt and expense company globally, and one of the highest revenue-per-employee companies in the world. We reimburse millions of dollars every day, process billions every year, and serve customers in more than 169 countries.

Our employees work from all over the world, but if you're looking for a change of scene we offer visa sponsorship and relocation assistance to join us at one of our rad locations:

  • San Francisco
  • Portland
  • Michigan
  • New York
  • London
  • Melbourne

About You

Whether you’re building features like calendar integrations, importing credit card transactions, or pulling information from receipts, you’re self-driven and collaborative. You’re an autonomous individual who is passionate about writing beautiful and concise code. You’re willing to work with other engineers, designers, and customer facing teams to turn our dreams into reality. You’re excited by our culture of Live Rich, Have Fun, and Save the World, and have an ambition you’re incredibly passionate about that Expensify can help you achieve.

As a Full Stack Engineering Intern, your responsibilities include:

  • Implementing improvements
  • Planning, building, and maintaining cross-stack features like accounting integrations, advanced receipt scanning, and more.
  • Guiding and enabling others in the organization: we'll share our editor tricks, dotfiles and productive workflows. Share yours!
  • Asking questions about things you don’t understand and challenging the status quo.


  • Is a student who can commit to at least 3 months full-time, and then an additional 3 months either part-time or full-time with the opportunity for full-time employment after the internship.
  • Has experience writing real-world software to solve real-world problems.
  • Communicates well, both interpersonally and in their code.
  • Is a natural problem solver, knows how to solve problems by automating their solutions.
  • Understands the role and impact that programming can have on the organization as a whole.
  • Wants to develop and grow their skills in programming and leadership within the organization.

We’re looking for people who have a strong understanding of algorithms and design patterns that can apply those concepts into a production level codebase. Knowledge and experience with Javascript, PHP, React, React Native, C++, Java, iOS or Android is a plus. This position is the foundation for launching a career with Expensify, with the expectation that you’ll carry these skills into new domains.

Our Hiring Process

The questions in our job application replace resumes to help us uncover what really drives you. We don’t focus on your background, degree, or years of experience – we’re focused on where you can go, not where you’ve been. So what do we look for? Talent, ambition, and humility.

While we do read every application, we also value and respect our time as well as yours. So rest assured we'll get back to you within a week, whether there's a fit or not. If there's a fit, the interview starts with a phone call, progressing to an all-day onsite if all goes well.

Overall our process moves pretty quickly and can take around three weeks from the time you apply to the time you come for an onsite interview. Once we extend an offer, we work with you to set a start date that works for everyone!

Next Steps

Applying is easy, but it takes time. See, while we know you're awesome, it's actually really hard and time consuming to find you in the midst of literally hundreds of other applications we get from everyone else. So this is where we're going to ask our first favor: can you make it really easy and obvious how great you are, so we don't accidentally overlook you? There are many ways to do that, but the easiest way to help us out is by answering the following questions:

  1. What is your expected graduation date?
  2. Can you commit to a 6-month full-time internship?
  3. What's the URL of your website? If you don't have one, why not?
  4. What's your coding history? When did you start, and what have you done between then and now?
  5. What do you want to do with the rest of your life, and how is Expensify a step toward your long-term goals? We’re serious, we want to know! Share what you’re comfortable sharing, but we are a group of ambitious individuals building a community of people who want to achieve success in every aspect of our lives, and we encourage employees to figure out how they can use Expensify to realize their personal goals with the support of the company around them.)
  6. How did you hear about us? A job posting? Chalk on a sidewalk? From a friend? Let us know where you saw this opening.

Resume not your thing? That’s great, we don’t really read them anyway! Forward your responses to the questions to apply@expensify.com. We're excited to hear from you!


Salary and compensation:

Compensation is really, really hard to get right and we work incredibly hard to make our process as fair as possible. We pay all of our employees comfortably above market, and everyone has the opportunity to exchange as much of their salary for equity as they desire.

Every six months, we use a peer-review method to review compensation. All in all, it takes us an astonishing amount of time and energy but we do this because it is crucial to our team, and our team is our most important asset. Check out this short interview where David Barrett explains the process with CBS News -> https://www.cbsnews.com/video/tech-company-expensify-has-workers-vote-on-each-others-raises/

When deciding compensation, our two governing principles are:

  • External fairness relative to the market - We make every effort to ensure that people at Expensify are compensated comfortably above market.
  • Internal fairness relative to each other - Everybody should be paid fairly with respect to their peers, which means you should be paid more than those who contribute less than you, and less than those who contribute more than you.

Sounds too good to be true?

See for yourself and check out David, CEO and founder of Expensify, chatting with RunningRemote about Offices Without Walls. You’ll get a sneak peek into David’s unique thinking strategy and our company culture as David tends to be more unconventional than most CEOs. Plus you'll get some great laughs as well! -> https://youtu.be/mpnlT3dZ59M


  • Full-time, salaried position
  • Medical/Dental/Mental Health support/Vision coverage
  • Free lunch
  • Flexible vacation policy
Full Stack Engineering Internat Expensify