Senior Frontend Engineer, Mercury

Payments

$200.7-250.9k

Canada: CAD 189,700 – 237,100. Plus stock options

React

TypeScript

Senior and Expert level

New York

San Francisco Bay Area

Remote from Canada, US

Banking services for startups and small businesses

Open for applications

Banking services for startups and small businesses

1001+ employees

FintechB2BBankingFinancial Services

Open for applications

$200.7-250.9k

Canada: CAD 189,700 – 237,100. Plus stock options

React

TypeScript

Senior and Expert level

New York

San Francisco Bay Area

Remote from Canada, US

1001+ 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

Has 7-10+ years of frontend development experience, with strong expertise in TypeScript and React
Is product-minded, with a track record of building and shipping successful products
Thrives in ambiguity and is excited by the opportunity to build a product from the ground up
Can balance speed and quality, making smart tradeoffs in the face of competing priorities
Enjoys mentoring and leveling up teammates, and takes initiative to make coworkers’ lives easier
Communicates clearly, collaborates effectively across functions, and seeks out opportunities to have outsized impact

What the job involves

This is a unique opportunity to shape a greenfield product from its earliest stages
You’ll design for founders, operators, and finance teams who expect intuitive software, seamless integrations, and automation that eliminates busywork
With strong demand from our customers and a large market opportunity ahead, this product has the potential to become one of Mercury’s biggest bets—and you’ll play a key role in making it real
Feel a strong sense of ownership - driving the product from early concepts to launch and beyond
Drive architectural decisions and define the technical direction, while fostering alignment across the team and mentoring engineers toward those goals
Collaborate closely with product managers, designers, and backend engineers to create intuitive, lovable experiences
Build core functionality in React + TypeScript, ensuring the product is performant, maintainable, and scalable
Mentor and support more junior engineers on the team, raising the bar for technical excellence
Champion a product-focused approach: keeping the user experience front and center in every decision

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 200,000 businesses and achieved a $3.5B valuation as of 2025. As a rising unicorn in the stagnant world of startup banking, mercury is backed by substantial funding and 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)
Annual $1K learning & development budget
Paid 6-week sabbatical after the 5-year mark
Weekly $100 food budget
Monthly $100 wellness budget
Monthly $50 cellphone reimbursement
Pet-friendly offices with free tea and beverages, plus lunch and snacks
Unlimited vacation policy (with a mandatory minimum)
Retirement matching up to 4% of base salary (401K/RRSP)
Inclusive fertility, hormonal health, and family-forming benefits through Carrot Fertility

Company HQ

SoMa, San Francisco, CA

Leadership

Jason Zhang

(Co-Founder & COO)

Jason graduated from Stanford University with a Bachelor of Science in Biology before spending over 4 years at Heyzap in Business Development.

Immad Akhund

(Co-Founder & CEO)

Immad graduated from the University of Cambridge with a Masters in Computer Science. He then worked as a Software Developer at Aquila and Bloomberg. He also founded Clickpass and Heyzap, and was a Part-time Partner at Y Combinator.

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