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Staff Data Scientist
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Use PAAW datasets to engineer features that capture machine, operational, and environmental context, and associate that context with technology usage to explain how and where each…
Added 2 mins ago
Software Engineer (On-site, Aurora, CO)
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Full Stack Software Engineer
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The Full Stack Software Engineer will be responsible for designing, developing, and maintaining both frontend and backend software for our Robotics products. This role spans modern web…
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Software Engineer
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As a key member of the Information Technology team, the Software Engineer will contribute to the development and maintenance of our cloud-hosted web applications, supporting internal and…
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Senior Data Technical Product Manager - Quantitative Sports
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Sr MS Engineer
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Software Engineer - Salesforce Sales/Health Cloud
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Louisville, KY · Atlanta, GA · Boston, MA · Charlotte, NC · Chicago, IL · Dallas, TX · Fort Lauderdale, FL · Nashville, TN · New York, NY · Tampa, FL · Washington, DC
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Principal Systems Engineer
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- $157,000 to $235,000 USD / year
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Senior Embedded Software Engineer (Top Secret Clearance)
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PRN Stationary Engineer
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Job Title: Part Time Stationary Engineer Job DescriptionThis role provides critical support to hospital operations by maintaining, troubleshooting, and repairing building systems and…
Added 4 mins ago
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Facilities Mechanic
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- $25 to $28 USD / hour
…DescriptionThis role focuses on maintaining and repairing building systems within a hospital environment, working as part of a dedicated trade team in plumbing, HVAC, or electrical. You…
Added 4 mins ago
Staff DevSecOps Engineer
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We’re looking for a Staff DevSecOps Engineer who will set technical direction across Platform DevOps and customer delivery. You will shape the engineering systems and practices that take…
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Structural Staff Engineer
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Experience in building foundations, framing systems, and lateral system design
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Structural Project Engineer
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Added 5 mins ago
Senior Power Electronics Engineer
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As a Senior Power Electronics Engineer, you will own the design, development, integration, and testing of power electronics and electrical power systems for Space Kinetic's payload and…
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Senior Motor and Power Controls Engineer
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Electrical Design Engineer
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Junior AI Engineer
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…operational value. From executive roadmapping to production-ready systems and workforce upskilling, Ajaia embeds intelligent tools directly into the workflows that matter…
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Systems Engineer III - Design
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- $78,750 to $95,812.5 USD / year
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Added 10 mins ago
Senior Machine Learning Engineer
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VODA.ai is seeking a full-time Senior Machine Learning Engineer. In this role, you will own the reliability, scalability, and automation of our machine-learning pipelines. The role spans…
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AV Architect
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Network Engineer - Tier 1
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ASSYST is seeking a Network Engineer – Tier 1 to provide essential technical, staging, and field implementation support for a high-priority network modernization project, for our client in…
Added 12 mins ago
Sr. Process Engineer, R1 Body AI/ML
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Normal, IL

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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Skills

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

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