Senior Software Engineer, Mercury

Spend Management

$200.7-250.9k

+ Equity. Salary shown for US. For Canada: CAD 189,700 – 237,100

Haskell

Senior and Expert level

New York

San Francisco Bay Area

Remote from Canada, US

Banking services for startups and small businesses

Job no longer available

Banking services for startups and small businesses

1001+ employees

FintechB2BBankingFinancial Services

Job no longer available

$200.7-250.9k

+ Equity. Salary shown for US. For Canada: CAD 189,700 – 237,100

Haskell

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 software development experience, with a knowledge of or excitement to learn Haskell
Has made architectural decisions in the past and measured the impact of those decisions over time. You should be able to clearly articulate your technical opinions and lay out tradeoffs
Is passionately customer and product minded and has experience building, shipping, and iterating on new products
Is someone comfortable driving discussions in areas with ambiguous ownership, approaches them with empathy, and delights in getting outcomes. Our work touches many other teams and areas of the product; you’ll have a lot of autonomy and the expectation is you’ll use that to seek out ways to have an impact
Is ridiculously helpful and doesn’t mind crossing team boundaries to improve the product experience and reduce tech debt

What the job involves

The Spend Management team is building products and platforms that redefine how companies implement processes and strategies to track, control, and optimize their spending
We’re a team of full-stack engineers motivated by the desire to create a lovable and intuitive product experience that brings a sigh of relief to our customers who are frustrated by existing complex and fragmented spend management solutions
Feel a strong sense of ownership - driving the product from early concepts to launch and beyond, while keeping the user experience front and center in every decision
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 other engineers to create intuitive, lovable experiences
Build core functionality in Haskell, ensuring the product is performant, maintainable, and scalable
Mentor and support more junior engineers on the team, raising the bar for technical excellence

Application process

We use Covey as part of our hiring and / or promotional process for jobs in NYC and certain features may qualify it as an AEDT. As part of the evaluation process we provide Covey with job requirements and candidate submitted applications

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 (4.1)

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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