Senior Front-End Developer

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Senior Front-End Developer in Canada

Jobber
Full time
Email

Canada
09/18/2026
Report

Toronto

Responsibilities

Build and maintain production features across Next.js, Sanity, React, TypeScript, WordPress, PHP, and Twig.
Extend shared component libraries and design-system foundations with well-tested, reusable code.
Own Core Web Vitals, accessibility, semantic markup, rendering accuracy, and resilient page performance.
Integrate APIs and structured content in Sanity while maintaining Twig-templated WordPress components.
Architect and execute A/B, multivariate, and personalized web experiments for high-converting marketing flows.
Improve experimentation velocity and statistical integrity by reducing flicker and shortening time from hypothesis to live variant.
Support SEO, LLM, and AI-search initiatives through structured data, performance, and rendering improvements.
Use and improve AI coding tools, agents, MCP integrations, prompts, and AI-ready engineering workflows.
Set technical standards, influence architecture and tooling decisions, mentor front-end developers, and partner with the Engineering Manager on quality.
Collaborate with developers, designers, marketers, CRO leads, data analysts, and other technical and non-technical partners.

Requirements

Expert command of HTML, CSS, JavaScript/TypeScript, accessibility, and web performance with several years of production application development experience.
Hands-on experience architecting and shipping complex A/B, multivariate, and personalized web experiments with measurable conversion outcomes.
Experience with web experimentation, feature flag, and product analytics platforms such as Kameleoon, Optimizely, VWO, LaunchDarkly, Amplitude, and GA4.
Mastery of Next.js, React, TypeScript, and modern rendering strategies focused on performance and accessibility.
Experience working within a design system or maintaining a shared component library.
Experience with headless CMS platforms such as Sanity or Contentful and hands-on proficiency with WordPress, PHP, and Twig templates.
Active day-to-day use of AI coding tools and experience forming responsible opinions about their use.
Ability to set technical standards, mentor others, collaborate effectively, and work through ambiguity.
Back-end familiarity with APIs, services, or full-stack development is preferred.
Experience collaborating closely with designers in Figma is preferred.

Benefits

Annual base salary range of $121,000 to $163,600, with a stated midpoint of $142,200.
Equity rewards or stock options, annual health and wellness stipends, retirement savings matching through RRSP, TFSA, or FHSA, and extended health coverage with fully paid premiums.
Access to a dedicated Talent Development team, career coaching, learning, and leadership programs.
The role is open to candidates based in Jobber hub cities: Edmonton, Toronto, Vancouver, or Kitchener-Waterloo, with intentional in-person collaboration.

Jobber

Jobber builds cloud-based operations and field service management software for small home service businesses such as plumbers, landscapers, and cleaners. The platform includes CRM, quoting and estimates, scheduling and routing, invoicing, payments, and mobile apps, with embedded fintech tools lik...

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