Senior Frontend Infrastructure Engineer - Seeq

This is a frontend system engineering role focused on evolving Seeq’s frontend React infrastructure, state management, design system, and building reusable application patterns for a complex enterprise product. You will shape not just UI primitives, but the broader frontend foundations that teams use to build clear, consistent, high-quality experiences across data-dense workflows.

Passionate about crafting exceptional software, you revel in writing code with elegance, extensibility, and maintainability as your guiding principles.

What You Will Do

• Lead the evolution of Seeq’s frontend system, improving component quality, consistency, usability, and developer experience across the product.
• Build systems that set up AI-driven development for success by codifying best practices that are easy for agents to follow.
• Leverage open-source ecosystem tools like Zustand, TanStack Query, and StyleX with taste and judgment, extending and adapting them where needed.
• Ensure that refactors to bring in new patterns or libraries are done with an exceptionally high bar for quality and completeness, partnering closely with teams to roll out changes smoothly.

What We’re Looking For

• Exceptional frontend engineer with strong product sense, visual taste, and systems thinking.
• Real experience creating, evolving, and shipping design systems or component libraries used in production applications.
• Highly effective in React and TypeScript with exposure to popular ecosystem libraries like Zustand, StyleX, or TanStack Query.
• Strong focus on component APIs, styling architecture, responsiveness, usability, and long-term maintainability, solving root causes rather than patching symptoms.
• Strong ownership, agency, and excellent written and verbal communication skills.

Requirements

• Minimum of 5 years professional experience in software development, with a solid record of designing, building, and evolving complex software systems over a period of years.
• Expert-level proficiency in JavaScript/TypeScript, React, and HTML primitives.
• Demonstrated experience designing, building, or significantly evolving shared frontend systems such as design systems, component libraries, state-management architecture, styling systems, or reusable application frameworks.
• Strong understanding of modern frontend architecture, including state management, server/client data flow, component composition, rendering behavior, and application performance.
• Experience building reusable frontend components and patterns with careful attention to API design, accessibility, responsiveness, styling architecture, usability, and long-term maintainability.
• Experience leading or contributing significantly to large-scale frontend refactors, migrations, or adoption of new architectural patterns across a production application.
• Strong judgment in evaluating and adopting open-source frontend technologies, with the ability to extend existing tools rather than defaulting to custom solutions.
• Ability to diagnose root causes of complex frontend defects and performance issues rather than treating symptoms.
• Experience creating clear technical documentation, conventions, and examples that help other engineers successfully adopt shared systems.
• Ability to influence technical direction beyond your own feature area through design reviews, code reviews, pairing, mentoring, and cross-team collaboration.
• Strong product sense and the ability to partner with designers and product teams to create clear, consistent experiences across complex workflows.
• Ability to build responsive, scalable web experiences across devices and partner with designers to ensure visual consistency.
• Excellent problem-solving and analytical skills, with strong attention to detail.
• Excellent written and verbal communication skills and the ability to work effectively in a cross-functional, remote environment.
• Familiarity with agile development methodologies and tools, such as Scrum or Kanban.
• At Staff level, must have demonstrated experience setting frontend technical direction or creating shared architectural patterns adopted by multiple engineers or teams.

Benefits & Perks

• Competitive salary plus cash bonus incentives ($215,000 CAD)
• 12-week paid Seeq family leave
• Unlimited PTO and vacation bonus program
• Internet and mobile phone reimbursements
• Medical benefits, group term life insurance, short-term and long-term disability insurance pre-tax benefits
• Voluntary vision and dental (ortho)
• Employee Assistance Program
• Generous home office allowance
• Pet-friendly workspace