Full Stack Engineer

The job

LIVE Employer public job feed (private-sector employer) Source: the employer's public careers feed · Data: listed 2026-10-31

Job description

Full Stack Engineer

Remote (US)

Your Mission, Should You Choose To Accept

Join our team to build the fastest way to handle expenses, and give people back their time. We don’t want someone who closes tickets because they were assigned. We want someone who figures out what’s worth building and checks that it works for the people using it.

Full Stack Engineer At Expensify

We’re looking for a resourceful, self-directed engineer who is excited to work across product and engineering. You’ll work closely with other engineers, designers, customer-facing teams, and external contributors to turn rough ideas into reliable, shipped features.

Why Join Us?

• Own high-impact projects. We’re a small team. You’ll take projects from the first idea to a shipped feature, and you’ll be trusted to make the decisions along the way without handing them off or waiting for sign-off.

• Work at the intersection of product, code, and AI. AI is part of the product as a whole, not a separate effort. You’ll build features with it every day, and you’ll help decide what we build as well as how we build it.

• Work with people who care about the craft. You’ll be surrounded by smart, thoughtful colleagues who care about the quality of what we ship and the results it delivers, and who will hold your work to the same standard.

About You

• You manage yourself. We’re a flat organization, so nobody sets your day. You decide what matters, figure out for yourself whether it’s working, and keep moving without waiting to be told

• You write clearly, in code and in prose. We’re remote-first, so most of our thinking happens in docs, threads, and pull requests.

• You think like a product owner. You ask who a feature is for and why it matters first and enjoy getting into the predesign conversations.

• You work fluently with AI. We use it constantly, and you know how to direct it, check its work, and tell when it’s leading you astray

• You review others’ work with care. You can give direct, thoughtful feedback to open-source contributors and help them work better without slowing them down

• You have a strong grasp of design patterns and system design, and you can apply them in a production codebase

• You can work fluidly across departments, such as design, customer-facing teams, and engineering, and you’re great at communicating needs and tradeoffs

• You’re ambitious about your own growth and want to use this role to get somewhere specific, not staying comfortable anywhere for long.

• You have a self-starter mindset: proactively spotting gaps, diagnosing issues, and rolling up your sleeves to build or fix the most valuable thing without being asked

• You have a work ethic unequaled by your peers, are the hardest worker in the room, and are a force multiplier, inspiring others to follow your example.

Daily Focus & Responsibilities

• Plan, build, and maintain cross-stack features like accounting integrations, advanced receipt scanning, calendar integrations, and credit card transaction imports

• Squash bugs and improve the reliability of our app, so the things we ship keep working

• Maintain and improve high-quality code to give customers industry-leading experiences

• Review pull requests from internal engineers and external contributors, guiding both quality and direction

• Use AI tools across your workflow to increase efficiency, with good judgment about when to trust the output and when to dig in

• Make product calls on what to build, what to cut, and what to rethink, with clear reasoning for each

• Spot repetitive work and automate it, so no one does by hand what a script can do

• Share what you know: we’ll share our editor tricks, dotfiles, and productive workflows, and we want yours too

• Lift up the team around you to do more with less, work smarter, and pitch in to keep the lights on.

What We’re Looking For

• Strong command of design patterns and system design, applied in production-level code

• Clear communication, written and spoken, including native-level English

• A natural problem solver who automates solutions instead of repeating work

• An understanding of the role and impact programming has on the organization as a whole

• A drive to grow your skills in programming and leadership within the organization

• Experience with JavaScript, React, React Native, PHP, C++, Java, iOS, or Android

• (Bonus) Experience in maintaining a codebase that takes outside contributions, such as an open source project

Compensation & Benefits

• Full-time salaried position

• 401k with employer match

• 100% medical/dental/mental health support/vision contributions

• $20k annual family planning benefit through Carrot

• Up to 3 months of fully paid parental leave, with up to 6 months for birthing parents

• $5k relocation reimbursement if you move to one of our US offices (NYC, SF or PDX)

• Commuter benefits

• Flexible vacation policy

We’re committed to providing a fair and inclusive hiring experience. If you need a reasonable accommodation at any stage of the process, just let us know—we’re happy to help

Explore around this job

Field: Technology Sub-niche: Software engineering All jobs at Expensify

View this job and apply on the employer's page →

You apply on the employer's page; AtiveSite does not receive or process applications and is not affiliated with the employer. The description above is shown as the source published it.

About the role

This is a — role in the Technology field (Software engineering) at Expensify.

We could not match this job title to one occupation in the official wage statistics, so no pay estimate is shown. Pay is not in the source listing; ask the employer for the range and compare in the 240 job niches.

How to prepare and behave

This is editorial guidance, not information from the employer.

• Read the whole description and match your examples to its requirements; use the same words the posting uses where they are true for you.
• Research the employer before the interview: what it does, who its customers are and recent news; prepare two or three questions about the work.
• Arrive early (or log in early for a video call), dress one step above the daily dress code, and test your camera and audio beforehand.
• Answer with short stories: the situation, what you did and the result. Give numbers when you have them and never invent them.
• Be honest about gaps; say what you did to learn and how fast you can close them.
• Ask about the team, the first 90 days, how success is measured and the schedule; do not open with salary and time off.
• When pay comes up, know the market range for the occupation and your lowest acceptable offer before you answer; ask for the full package in writing.
• Send a short thank-you message within a day, mentioning one thing you discussed.
• The listing mentions a remote or flexible location. Confirm with the employer whether remote work applies to your state: taxes, licensing and benefits can depend on where you live.
• Have code, data work or projects you can show, and be ready to think aloud: many technical interviews test how you reason, not only the answer.

Know your rights as a candidate and an employee:

• U.S. Equal Employment Opportunity Commission: prohibited employment practices
• U.S. Department of Labor: Wage and Hour Division
• CareerOneStop (U.S. Department of Labor): job search help, interview tips and resumes
• USA.gov: avoiding job scams

The city

The listing is remote or has no US state we could identify. Read the country guide for pay, taxes, law and cost of living by state.

Where to live

The job city has no coordinates we can place on the map, so no housing comparison is shown. Use the 250 largest cities table to compare rent and income.

Career paths

We could not match this title to one occupation, so here are the other sub-niches in Technology, where your skills may carry over:

Cybersecurity (713) Data, analytics and AI (3366) Cloud, IT and infrastructure (1040) Product management (836)

Distances

This job has no single city we can place on the map (remote, flexible or unmatched location), so no distance table is shown. Browse all Technology jobs with distances from any of the 20 largest cities.

The employer

Expensify is the employer in this listing. See all its open jobs here →

We do not hold headcount or revenue for this employer. Check its careers site and, if it is listed on a stock exchange, its public filings (SEC EDGAR search).

What it is like to work at a company (culture, schedules, benefits) is not in the source data, so we do not describe it. Read the description and ask the questions under "How to prepare".

Other open jobs at Expensify

Similar jobs

Same sub-niche: Software engineering

All Software engineering jobs → · All Technology sub-niches →

FAQ

What is the Full Stack Engineer job at Expensify?

A private-sector role in technology (software engineering) listed 9 days ago. The full description is on this page and on the employer's page.

Where is this job?

Remote / flexible (United States). A remote or flexible location is listed; confirm with the employer which states are accepted.

How do I apply?

Use the "View this job and apply on the employer's page" button. AtiveSite does not receive applications.

How much does it pay?

The listing does not publish pay, and we could not match the title to one official occupation.

What is the cost of living there?

See the state or country guide for rent, income and taxes.

How old is this listing?

It was posted on 2026-10-31 (9 days ago). Jobs older than 90 days are not shown.

Are there similar jobs?

Yes: browse software engineering jobs in the United States.

Sources and terms

• Job data: Expensify careers page public feed (listing dated 2026-10-31). The job disappears from this site when it disappears from the source.
• Wages and projections: BLS OEWS (May 2025) and Employment Projections 2025–35.
• City and county figures: Census Bureau ACS 2020–2024, BEA, BLS QCEW and LAUS, NASA POWER climatology; distances from Census Gazetteer coordinates.

AtiveSite is not affiliated with or endorsed by the employer or any government agency, and does not process applications. Verify every detail with the employer before acting.

Sources

• BLS OEWS (wages and employment by occupation, May 2025)
• BLS Employment Projections 2025–35
• BLS Local Area Unemployment Statistics
• BLS JOLTS
• BLS State and Metro Area Employment
• Census Bureau American Community Survey (via Census Reporter)
• BEA GDP by state and Regional Price Parities
• IRS 2026 tax adjustments
• U.S. Department of Labor, minimum wage by state
• Tax Foundation state income tax rates 2026
• USAJOBS
• USCIS
• U.S. Department of State, visas
• NASA POWER climatology
• GeoNames / Census Gazetteer (coordinates)