Frontend Engineering Internship, Mercury

Spring 2026

Salary not provided

In terms of compensation, the hourly rate for candidates based in the US is $55. The hourly rate for candidates based in Canada is CAD 55.

React

TypeScript

Haskell

New York

San Francisco Bay Area

Remote from Canada, US

More information about location

Banking services for startups

Be an early applicant

Banking services for startups

501-1000 employees

FintechB2BBankingFinancial Services

Be an early applicant

Salary not provided

In terms of compensation, the hourly rate for candidates based in the US is $55. The hourly rate for candidates based in Canada is CAD 55.

React

TypeScript

Haskell

New York

San Francisco Bay Area

Remote from Canada, US

More information about location

501-1000 employees

FintechB2BBankingFinancial Services

Company mission

To make scaling tech companies simpler with a personalized banking stack for startups, and power the next generation of companies that will shape the American industry.

Job

Company

Role

Who you are

Be interested in continually honing their craft
Have curiosity and be willing to share their perspective
Appreciate quality in their work and that of others
Communicate well, and be able to write clear explanations of their reasoning on technical decisions
Frontend Engineering Interns should have experience with the TypeScript programming language, and experience with React is a plus
Our internship program is intended for individuals enrolled in an academic program (undergraduate, graduate, etc.). Individuals interested but not enrolled in an academic program at this time are encouraged to apply to any of our full-time openings

What the job involves

As an Engineering Intern, you’ll join a team that aligns with your goals and interests. During the interview process, you’ll have the opportunity to talk through the various team openings
You’ll be receiving mentorship from experienced engineers, writing TypeScript and/or Haskell code, and contributing to a product that serves over 100,000 businesses
Work on a beautiful app: Since many of our customers are startups, they appreciate a well-implemented design. We have high standards for our UI, and we think it shows on our website. We encourage you to sign up and check out our onboarding experience, or read our blog post about our date picker
Push the limits of TypeScript: As a financial technology company, preventing errors is a top priority for us, and we take advantage of TypeScript’s advanced static typing features to prevent them
Work in an established codebase that still has room for growth. Across 650K lines of TypeScript, we’ve built abstractions and components that will give you leverage to build great features during your months at Mercury. But there’s still a lot more to build, be it optimizing the scrolling performance of a combobox, or building whole pages to deliver a feature to customers
Exercise ownership over the product: Our engineers work closely with our designers and contribute their own ideas to make the product better
This is a paid full-time remote summer internship for 12-16 weeks between January and May

Application process

Applications close on October 10, 2025. Please apply only to the single intern position that best aligns with your qualifications and interests

Our take

Frustrated by the archaic, fee-laden banking services offered to entrepreneurs, the founders of Mercury set out to create a better solution. They envisioned a platform that was dynamic, tech-driven, and free from unnecessary fees.

Mercury delivers on this vision by automating business payment processes, offering FDIC-insured accounts, and providing full API access, empowering entrepreneurs with greater control and efficiency. This approach stands in stark contrast to traditional startup banking, which often burdens young businesses with high fees and limited functionality.

By prioritizing user experience and offering a free service tier, Mercury has attracted over 100,000 businesses and achieved a $1B valuation in 2021. As a rising unicorn in the stagnant world of startup banking, mercury is poised for continued growth, constantly adding new features and expanding its team to further disrupt the industry.

Kirsty

Company Specialist at Welcome to the Jungle

Insights

Top investors

50% employee growth in 12 months

Glassdoor (4.5)

Trustpilot (4.2)

Company

Funding (last 2 of 5 rounds)

Mar 2025

$300m

SERIES C

Jul 2021

$120m

SERIES B

Total funding: $450.9m

Company benefits

Health, dental, & vision
12+ weeks of paid parental leave
$600 USD custom WFH equipment setup
Unlimited vacation policy (with a mandatory minimum)
Retirement matching up to 4% of base salary (401k/RRSP)
Paid 6-week sabbatical after the 5-year mark
Annual $1K USD learning & development budget
Unlimited book budget
Weekly $100 USD food budget
Monthly $100 USD wellness budget
Monthly $50 USD cellphone reimbursement
Pet-friendly offices with free tea & lunch

Company HQ

SoMa, San Francisco, CA

Leadership

Jason Zhang

(COO)

Studied Biology at Stanford before spending over 4 years at Heyzap in Business Development.

Immad Akhund

(CEO)

Graduated from the University of Cambridge, then worked as a Software Developer at Aquila and Bloomberg. Also founded Clickpass and Heyzap, and was a Part-time Partner at Y Combinator.

Salary benchmarks

We don't have enough data yet to provide salary benchmarks for this role.

Submit your salary to help other candidates with crowdsourced salary estimates.

Share this job

View 33 more jobs at Mercury