Remote
US
$186K–$219K
💻Engineering
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When the Space Shuttle approached the International Space Station, two vehicles built by different teams, in different countries, with fundamentally different engineering philosophies and systems, had to connect perfectly. The Rendezvous, Proximity Operations, and Docking (RPOD) subsystems were engineered to handle complex mismatches such as different power systems, communication protocols, and technical architectures. Get it wrong, and you have a very expensive and potentially catastrophic problem in low Earth orbit.
Mercury announced on December 19, 2025 that we submitted an application to the OCC for a national bank charter and applied for FDIC deposit insurance. On April 27, 2026, Mercury announced conditional approval. In other words, Mercury has the universe’s cosmic blessing to build a bank, and we are full speed ahead. As part of this work, we will be connecting our modern, product-focused engineering systems to enterprise core banking systems and payment networks built in a different era, with different assumptions and different interfaces. Mercury’s Banking* Integration Platform team is like NASA’s RPOD team, building our integration subsystems that are technically correct and operationally trustworthy.
This is some of the most consequential infrastructure work at Mercury. Every account opening, every monetary transaction, and every balance call will flow through the systems you build. Product teams across the company will depend on clean abstractions that hide the complexity underneath. You'll be one of the few engineers at Mercury who truly understands the full depth of our Bank Core* and all its internal and external integrations.
As a Senior Software Engineer on the Banking Integration Platform Team, you’ll play a key role as a technical leader and hands-on engineer in building seamless connections between Mercury and the outside financial world. Building Mercury Bank is the most important adventure the company is embarking on, and you have the opportunity to go on this mission.
If this role interests you, we invite you to explore our public demo at demo.mercury.com.
The total rewards package at Mercury includes base salary, equity (stock options), and benefits. Our salary and equity ranges are highly competitive within the SaaS and fintech industry and are updated regularly using the most reliable compensation survey data for our industry. New hire offers are made based on a candidate’s experience, expertise, geographic location, and internal pay equity relative to peers.
Our target new hire base salary ranges for this role are the following:
*Mercury is a fintech company, not an FDIC-insured bank. Banking services provided through Choice Financial Group and Column N.A., Members FDIC.
Mercury values diversity & belonging and is proud to be an Equal Employment Opportunity employer. All individuals seeking employment at Mercury are considered without regard to race, color, religion, national origin, age, sex, marital status, ancestry, physical or mental disability, veteran status, gender identity, sexual orientation, or any other legally protected characteristic. We are committed to providing reasonable accommodations throughout the recruitment process for applicants with disabilities or special needs. If you need assistance, or an accommodation, please let your recruiter know once you are contacted about a role.
#LI-MC1
USD 200,700 - 250,900
Annually
Health Insurance
Dental Insurance
Vision Insurance
Life Insurance
Flexible Spending Account (FSA)
Wellness Programs
401(k) / Retirement Plan
401(k) Match
Equity / RSUs
Pay Transparency
Commuter Benefits
Fertility Benefits
Parental Leave
Caregiver Policy
Sabbatical
Unlimited PTO
Learning & Development Budget
Mercury is remote-first and opens most roles to anyone in the United States or Canada. Some roles are US-only, including sales and SDR positions, certain compliance and audit roles, and weekend support. You can also work from Mercury's offices in San Francisco, New York, and Portland, Oregon by choice, and there is a Dublin, Ireland office for EMEA customer-support roles. Each posting lists its own location eligibility, so check the specific role you are interested in.
Mercury publishes a salary range on every job posting and bases offers on your experience, expertise, geographic location, and internal pay equity relative to peers. Pay is geo-adjusted between countries: a senior engineering role, for example, recently listed roughly $167K to $208K in the United States versus about CAD 157K to 197K in Canada. Every employee also receives equity as stock options or RSUs, and RSU grants vest over six years with no cliff, with a seven-year window to exercise after you leave.
Minimum PTO Requirement
Paid Holidays
Sick Days
Volunteer Time Off
Home Office Stipend
Company Equipment
Meal Stipend
Company Offsites / Retreats
Free Snacks & Drinks
Team Events & Social Budget
On top of medical, dental, and vision coverage, Mercury offers 12 or more weeks of paid parental leave and fertility, hormonal-health, and family-forming benefits through Carrot. Retirement matching runs up to 4 percent of base salary through a 401(k), or an RRSP for Canadian employees. Remote-friendly stipends include a $600 home-office equipment setup, a $100 weekly food budget, a $100 monthly wellness budget, a $50 monthly phone reimbursement, and a $1,000 annual learning and development budget.
Mercury runs on six stated values: Think actively, Be super helpful, Act with humility, Appreciate quality, Focus on the outcome, and Build relentlessly. In practice that looks like curiosity and experimentation, going out of your way to help teammates, and taking ownership of results while leaving ego at the door. People who want high autonomy and direct impact, and who care about craft and building things that last, tend to thrive here.
Mercury has not published async-first practices such as no-meeting days or documentation-first norms, so expect a fairly synchronous, real-time way of working with meaningful overlap with your teammates. Its offices in San Francisco, New York, and Portland anchor US time zones, and roles run across US and Canadian time zones. Engineering teams are described as autonomous and close-knit, so there is real self-direction within that synchronous default.
Beyond the Haskell backend, Mercury builds its web frontend in TypeScript and React, its iOS app in Swift, and its Android app in Kotlin, on Postgres with AWS infrastructure managed through Nix and Terraform. The data and AI tooling spans Snowflake and BigQuery pipelines and several large language model providers, so engineers work across a modern, type-forward stack rather than a legacy fintech one.
