Senior Web Developer (Full Stack)

About the role

Klick, a health and life sciences marketing and technology group founded in 1997, is hiring a Senior Web Developer for its Full Stack + AI team. The developer builds and delivers production web experiences and supporting services for life sciences brands, combining deep web engineering expertise with AI-native development practices. The role leads technical delivery, partners with Technical Directors and cross-functional teams, and mentors developers on engineering standards, accessibility, security, performance and effective AI-assisted development.

Key responsibilities

• Lead development of production web applications and server-side services using modern HTML, CSS, JavaScript/TypeScript, APIs and server-side technologies, from architecture through deployment and maintenance.
• Design and run agentic development workflows with tools such as Claude Code, Cursor or Codex, including task decomposition, prompts, tool integration, automated verification and human review checkpoints.
• Own code quality across human- and AI-generated work through automated tests, type checks, linting, CI/CD gates, code review, OWASP-aligned security, WCAG 2.2 AA accessibility and Core Web Vitals performance.
• Build reliable integrations with headless or enterprise CMS platforms, APIs, analytics, Google Tag Manager and structured data layers, protecting personal or confidential information.
• Lead technical estimation, documentation, risk identification, code review and developer mentoring, and communicate architecture decisions and delivery risks to technical and non-technical stakeholders.

Required profile

• 5+ years of professional web development experience delivering production front-end and server-side applications.
• Hands-on experience with AI coding agents (Claude Code, Cursor, Codex or equivalent) in regular delivery, with documented human approval before production.
• Experience building at least one production feature, internal tool or workflow integrating with an LLM API.
• Experience delivering accessible, secure and performant apps with WCAG 2.2 AA, OWASP controls, Core Web Vitals, automated testing, Git, CI/CD and documented deployment or rollback processes.
• Experience leading technical delivery, code review, risk management and mentoring, and communicating technical trade-offs to engineers and non-engineers.

Required skills

• Semantic HTML, modern CSS, JavaScript/TypeScript, APIs and a server-side language such as Node.js.
• Desired: Next.js, Gatsby or Astro; Contentful, AEM or Drupal; Google Tag Manager, GA4 and structured data; AWS, Azure or GCP, serverless, Docker.
• Desired: building internal AI tools or agents with an agent SDK, and experience in regulated environments such as pharmaceuticals or healthcare.

The base salary range is CAD 100,000 - 130,000, depending on location, skills, education and experience. The posting is for a net new vacancy and is listed as hybrid (#LI-Hybrid).