Entry Level Frontend Web Developer Jobs in Ontario

Mattermost is seeking a Growth Web Engineer to own and operate a modern, AI-enabled, developer-first website that powers high-velocity campaign execution and personalized digital experiences.

This role sits at the intersection of marketing, engineering, and AI-driven workflows. You will be responsible for translating campaign strategy, intent signals, and AI-generated insights into live web experiences-quickly, reliably, and at scale.

You will play a critical role in enabling rapid experimentation, account-based experiences, and AI-assisted execution-turning the website into a core growth engine.

• Own the day-to-day operation of the website, including updates, edits, and publishing of pages and content
• Build, update, and launch landing pages, campaign pages, and site content on tight timelines
• Make ongoing updates to existing pages, including copy, layout, components, and integrations
• QA all changes before and after publishing to ensure accuracy, functionality, and performance
• Monitor site health and quickly resolve issues related to broken pages, components, forms, or integrations
• Support rapid turnaround requests from marketing, including same-day updates when needed
• Maintain consistency across pages, ensuring alignment with design, messaging, and conversion best practices

• Manage and evolve a static-site architecture (Astro or similar)
• Build flexible, reusable components that enable rapid page creation and iteration
• Ensure the site supports frequent updates without breaking structure, performance, or tracking
• Troubleshoot and resolve rendering, formatting, and build issues quickly

• Partner with Growth Marketing and ABM to create targeted landing pages and campaign experiences for specific accounts, industries, and personas
• Translate intent signals and campaign inputs into tailored web experiences
• Build reusable templates for ABM, industry, and campaign pages to support scale and speed
• Enable rapid iteration of messaging, layouts, and CTAs based on performance and engagement

• Use AI tools (e.g., Claude, Cursor, Copilot) to accelerate page creation and development workflows
• Translate campaign requirements into structured prompts and page outputs
• Validate and refine AI-generated code and content to ensure production quality
• Integrate the website into broader AI-driven workflows that inform lead routing, nurture behavior, and optimization
• Act on insights generated from AI systems to continuously improve page performance and relevance

• Build and maintain frontend form experiences within the site
• Integrate forms with Pardot using form handlers or APIs
• Ensure accurate field mapping, hidden fields, and campaign attribution
• Validate end-to-end data flow into Salesforce
• Implement and maintain conversion tracking via Google Analytics 4
• Debug and resolve issues across the full lead capture, routing, and attribution process

• Integrate and maintain external tools such as:
• Qualified
• Navattic
• Greenhouse
• Ensure consistent styling, performance, and tracking across all embedded systems
• Maintain reliable data flow across marketing and AI workflow systems

• Structure pages and content to support both traditional SEO and AI-driven discovery (AEO/GEO)
• Implement schema, metadata, and semantic page structures to improve answer engine visibility
• Work with emerging AI search and optimization tools (e.g., Profound, AthenaHQ, or similar)
• Continuously optimize pages based on search performance, AI visibility, and engagement signals
• Monitor and address indexing and performance issues via Google Search Console

• Own content and code workflows in GitHub
• Manage CI/CD pipelines and deployments (e.g., Vercel, Netlify)
• Ensure reliable publishing with minimal friction and downtime

• 3-6+ years in frontend, growth engineering, or similar roles
• Experience with static frameworks (Astro, Next.js, Gatsby, or equivalent)
• Strong proficiency in HTML, CSS, and JavaScript
• Experience with Git-based workflows and modern deployment pipelines

• Proven ability to launch and iterate on pages quickly in fast-paced environments
• Strong bias toward action while maintaining quality and stability
• Experience supporting marketing or growth teams (landing pages, campaigns, experimentation)

• Experience working with APIs, webhooks, and third-party integrations
• Familiarity with marketing and analytics tools (Pardot, Salesforce, GA4, etc.)
• Ability to debug issues across frontend, backend, and data systems

• Experience using AI tools (e.g., Claude, Cursor, Copilot) in development workflows
• Ability to generate, evaluate, and refine AI-assisted outputs
• Comfort working in environments where AI workflows are integrated into execution

• Experience in B2B SaaS or enterprise marketing environments
• Familiarity with headless CMS platforms or structured content systems
• Experience implementing advanced tracking, attribution, and experimentation frameworks

In your first 90 days, you will:

• Establish a fast, reliable workflow for launching and updating pages
• Deliver same-day or next-day turnaround for key campaign updates
• Enable rapid creation of personalized and ABM campaign experiences
• Implement robust form handling and ensure accurate lead flow into Pardot and Salesforce
• Integrate the website into key AI-driven workflows across marketing and sales
• Improve site flexibility through reusable components and scalable templates

We are building a connected, AI-orchestrated growth system where insights, intent signals, and campaign strategy must translate into live digital experiences immediately.

This role ensures that happens-turning data into execution at speed and enabling personalized, high-impact experiences that drive pipeline and revenue.
Mattermost takes a market-based approach to pay and pay may vary depending on your location. The successful candidate's starting pay will be determined based on job-related skills, experience, qualifications, work location, and market conditions. These ranges may be modified in the future.