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Added just now
Mechanical Engineer III -(E3)
Applied Materials
Santa Clara, CA · Santa Clara
As a Mechanical Engineer, you’ll leverage your strong foundation in physics, mathematics, and materials science to process and resolve mechanical problems, design and implement custom…
Added just now
ASIC Physical Design, Principal Engineer
Synopsys
Sunnyvale, CA
…assumption you made six months ago that no longer holds. You are the engineer who catches those problems early, not because you are paranoid, but because you have seen what happens when…
Added just now
MB
Project Manager, Bridges & Structures
Massachusetts Bay Transportation Authority
Boston, MA
- $147,268.94 USD / year
The Project Manager Bridges & Structures will be the MBTA’s lead representative for the Capital Delivery Department who has the responsibility, from inception to completion, for managing…
Added 2 mins ago
Software Development Engineer, Amazon Quick
Amazon Development Center U.S., Inc.
Seattle, WA
The Amazon Quick team is looking for an exceptional Software Development Engineer for a strategic new initiative. Amazon Quick is a generative AI–powered assistant that can answer…
Added 4 mins ago
Senior Software Engineer, Database Automation Engineer
PNC Bank NA
PA · Strongsville, OH · Birmingham, AL · Dallas, TX
…contribute to the company’s success. As a Senior Database Automation Engineer within PNC's Technology organization, you will be based in Pittsburgh, PA, Dallas, TX, Birmingham, AL, Denver,…
Added 4 mins ago
Senior Software Engineer - Database Automation and Platform Engineering
PNC Bank NA
PA · Strongsville, OH · Birmingham, AL · Dallas, TX
…to contribute to the company’s success. As a Senior Software Engineer within PNC's Technology organization, you will be based in Pittsburgh, PA, Dallas, TX, Denver, CO, Birmingham, AL or…
Added 4 mins ago
Senior Software Engineer, Database Automation
PNC Bank NA
PA · Strongsville, OH · Birmingham, AL · Dallas, TX
…to contribute to the company’s success. As a Senior Software Engineer within PNC's Technology organization, you will be based in Pittsburgh, PA, Denver, CO, Dallas, TX, Strongsville, OH or…
Added 5 mins ago
Director, Software Engineer
Western Governors University
Salt Lake City, UT
Supports the change management process, including software releases, application patching, and changes to production configurations.
Added 5 mins ago
Senior Software Engineer
Western Governors University
Salt Lake City, UT
…technology, AI, and workforce development. As a Senior Software Engineer, you will play a key role in designing, building, and evolving the platforms that support WGU students and internal…
Added 6 mins ago
CC
Commercial HVAC Mechanical Project Manager (Remote)
Carrier Corporation
Remote, United States
- $79,000 to $158,000 USD / year
…positively representing the company in all client and architect/engineer…
Added 7 mins ago
Project Manager I or II
Duke Energy Carolinas, LLC
Charlotte, NC
Create / Staff / Lead Project Team. Provide leadership, oversight management, delegation, and coordination to the various internal and external organizations that are providing services to…
Added 10 mins ago
Environmental Health & Safety Engineer (Satellites)
SpaceX
Redmond, WA
Lead or assist in all aspects of incident investigations, including initial follow-up, root cause analysis, and corrective action development and closure
Added 13 mins ago
IG
Senior Advanced Project Engineer
Insight Global
North Charleston, SC
- $110,000 to $130,000 USD / year
The Sr. Advanced Project Engineer will be responsible for capital projects, equipment installations, and operational improvement initiatives across the manufacturing facility. This role…
Added 13 mins ago
IG
Reliability Engineer
Insight Global
North Charleston, SC
- $97,600 to $140,000 USD / year
The Reliability Engineer is responsible for driving equipment reliability, maintainability, availability, and safety across the facility in alignment with Process Safety Management (PSM)…
Added 13 mins ago
IG
Controls Engineer
Insight Global
North Charleston, SC
- $92,000 to $138,000 USD / year
Experience in a Process Safety Management (PSM)
Added 13 mins ago
Engineer III/Sr. Engineer I, Manufacturing Sciences – Drug Product
Biogen
Research Triangle Park, NC
The Engineer III/Sr. Engineer I, Manufacturing Sciences serves as a key scientific and technical resource supporting aseptic drug product manufacturing at Biogen’s RTP Pharma facility. This…
Added 14 mins ago
Staff Software Engineer, Google Ads, Full Stack
Google
New York, NY
In most instances, this position requires in-person interviews as part of the hiring process.
Added 14 mins ago
Combat Survivor Evader Locater (CSEL) Systems Engineer (Experienced or Lead)
The Boeing Company
Huntington Beach, CA
…is seeking a Combat Survivor Evader Locater (CSEL) Systems Engineer to join the CSEL Contractor Logistics Support (CLS) Systems Engineering team in Huntington Beach, CA. This organization…
Added 14 mins ago
Gigabit Ethernet Data Multiplex System (GEDMS) Communications & Network Systems Engineer (Experienced or Lead)
The Boeing Company
Huntington Beach, CA
…Data Multiplex System (GEDMS) Communications & Network Systems Engineer to support System Network Architecting and Application Engineering activities in Huntington Beach,…
Added 14 mins ago
Gigabit Ethernet Data Multiplex System (GEDMS) Adaptation Data Systems Engineer (Experienced or Lead)
The Boeing Company
Huntington Beach, CA · Pascagoula, MS · Bath, ME
…Ethernet Data Multiplex System (GEDMS) Adaptation Data Systems Engineer to support System Application Engineering activities from Huntington Beach, CA; Bath, ME; or Pascagoula,…
Added 14 mins ago
Software Engineer (Associate, Experienced or Lead)
The Boeing Company
El Segundo, CA
The Boeing Company has an exciting opportunity for a Digital Twin Software Simulation and Deployment Engineer to support Strategic Space Communications Programs in El Segundo, CA. This…
Added 14 mins ago
Experienced Quality Engineer - F-15
The Boeing Company
Berkeley, MO
Boeing Defense, Space & Security (BDS) has an exciting opportunity for an Experienced Quality Engineer to join our F-15 Quality team located in Berkeley, MO!
Added 14 mins ago
KC
Structural Engineer
KPFF Consulting Engineers
Seattle, WA
- $98,000 to $125,000 USD / year
Work with the project manager to lead the construction administration process, including site observations, review of construction submittals, and responding to contractor questions.
Added 14 mins ago
Product Line Manager - Si IGBT
onsemi
San Jose, CA
The Technical Marketing Engineer, also referred to as a Product Manager or Product Lifecycle Manager, has overall ownership of new products, including the business case, for assigned…
Added 14 mins ago
UA
Lead Operating Engineer
US AMR-Jones Lang LaSalle Americas, Inc.
Costa Mesa, CA
- $48.07 to $52.88 USD / hour
Join JLL as a Lead Operating Engineer and play a critical role in overseeing facility operations and engineering excellence. In this position, you'll supervise engineering department staff…

Mercury

Senior Software Engineer - Design Systems

Remote, United States

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Job details

Experience: 7+ years of frontend development, with deep experience in React, TypeScript, and modern web technologies.
Posting language: English
Posted: Nov 6, 2026

Original job description

"We may say most aptly that the Analytical Engine weaves algebraic patterns just as the Jacquard loom weaves flowers and leaves." - Ada Lovelace, 1843

What Lovelace saw in the loom was the pattern - flowers and leaves, repeated faithfully, each one begun by a hand that chose it. Mercury is built from patterns too. Every component, every interaction our customers come to trust, starts with someone deciding how it should go, and making it good enough to be used again and again. Tending those patterns, and giving everyone at Mercury the means to weave with them, is the work of our Design System team, and the north star of this role.

As a Senior Frontend Engineer on the Design Systems team, you will build and care for those patterns: the components and foundations that everything else at Mercury is built on. Done well, a single decision here makes every product team faster.

The ground under that work is shifting, though. Software is being built in new ways, and AI is increasingly part of how design systems are made and used. We are looking for someone who is fluent at that intersection: deeply versed in design systems, and equally as serious about what it takes to build a system that holds up at the leading edge of AI.

As part of this role, you will:

Build and maintain the components, patterns, and foundations (tokens, type, color, layout) that Mercury's product is woven from, holding a high bar for accessibility, performance, and pixel-level craft.
Lead projects that ship new UI patterns to solve real pain points for product teams, helping them build better experiences faster.
Develop a design system that's as ready for AI as it is for people, applying the technology to create leveraged outcomes.
Invest in the design system's prototyping experience, shaping the next iteration of how our design function rapidly prototypes, iterates on the product, and explores new concepts.
Raise the craft and AI fluency of the people around you, through mentorship and clear best practices.

The ideal candidate for the role:

We're looking for someone who cares about the foundational work that lets other people do their best work, and who's eager to help define what a design system means in a world where agents build alongside us. A successful candidate will likely have:

7+ years of frontend development, with deep experience in React, TypeScript, and modern web technologies.
Experience building or maintaining a design system or shared component library.
A thorough command of modern frontend tooling: build systems, CI/CD, and testing.
High agency, and comfort creating clarity in ambiguous spaces. You take ownership and move without waiting for a defined path.
First-principles systems thinking that stays oriented to outcomes. You make clear decisions that drive toward results instead of getting stuck in open questions.
Strong product taste, and an instinct for leverage: the change that makes many teams better, not the one component polished in isolation.
Hands-on fluency at the intersection of AI and software development: a real command of how emerging AI paradigms are changing the way software gets built, and the ability to turn that into practical leverage, both for the design system itself and for the people who build on it.

If this role interests you, we invite you to explore our public demo at demo.mercury.com.

*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.

Total Rewards The total rewards package at Mercury includes base salary, equity (stock options/RSUs), 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:

US employees (any location):

$200,700 - $250,900 USD

Canadian employees (any location):

$189,700 - $237,100 CAD

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More about this job

Skills

Front-end development
React
TypeScript
CI/CD
Systems thinking
Software development

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