Principal Software Engineer

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Principal Software Engineer, Front End Web UI Platform based in Canada.

This is a high-impact technical leadership role focused on the frontend platform powering a large-scale web product used by millions of developers.

• Own the technical direction of the web UI platform across performance, accessibility, consistency, availability, and frontend infrastructure.
• Balance long-term architectural strategy with hands-on engineering execution and practical delivery.
• Lead large, cross-team frontend initiatives and migrations, carefully sequencing work to minimize disruption to active product development.
• Establish reusable frontend patterns, standards, tooling, and paved paths that can be adopted consistently across engineering teams.
• Develop architecture proposals and technical designs, evaluate tradeoffs, and communicate recommendations clearly to engineering, product, and design leadership.
• Drive modernization initiatives across a large and actively evolving frontend codebase, including migration, deprecation, and incremental adoption strategies.
• Identify opportunities to improve web performance, frontend reliability, developer velocity, and overall user experience through systematic, data-driven approaches.
• Collaborate with Principal and Staff Engineers, Engineering Managers, Product Managers, and Design leaders to align technical priorities with business and customer needs.
• Mentor engineers at all levels through architecture and design reviews, code reviews, technical discussions, and pairing.
• Represent frontend platform priorities to senior leadership and help secure the alignment, resources, and support required to deliver strategic initiatives.
• Build a deep understanding of frontend systems, infrastructure, and backend dependencies to make high-leverage technical decisions.
• Measure and communicate the impact of platform initiatives, including improvements in performance, availability, infrastructure, developer productivity, and adoption of shared solutions.

• 9+ years of software engineering experience with a Bachelor's degree, or equivalent experience through the applicable education and experience combinations; candidates with Associate's, Master's, Doctorate, or equivalent backgrounds may also qualify with the corresponding level of professional experience.
• Proven experience maintaining and delivering production-grade software in one or more languages such as JavaScript, TypeScript, C, C++, C#, Java, Go, Ruby, Rust, or Python.
• Deep expertise in React or Angular, including framework internals and server-side rendering.
• Experience modernizing frontend systems within large, multi-team codebases.
• Strong understanding of web performance, including Core Web Vitals, interaction latency, bundle size, rendering performance, and systematic performance optimization.
• Proven ability to lead cross-team frontend migrations and large-scale rollouts involving sequencing, deprecation, adoption, and change management.
• Strong knowledge of web platform fundamentals, including browser APIs, JavaScript, TypeScript, CSS, and modern frontend architecture.
• Strong understanding of accessibility standards and the ability to incorporate accessibility into scalable frontend solutions.
• Experience building or evolving design systems, shared component libraries, frontend platforms, or developer tooling adopted by multiple teams.
• Strong architectural and systems-thinking skills, with the ability to evaluate complex technical tradeoffs and make pragmatic decisions.
• Excellent communication and collaboration skills, particularly when influencing engineers, product leaders, designers, and other senior stakeholders without direct authority.
• Demonstrated ability to mentor engineers and raise engineering quality through technical guidance, reviews, and knowledge sharing.
• Ability to operate effectively in a large, distributed, and continuously evolving engineering organization.
• Strong ownership mindset, customer focus, growth orientation, and commitment to inclusive collaboration.

• Fully remote opportunity within Canada.
• Competitive compensation aligned with experience, skills, and location.
• Comprehensive employee benefits designed to support health, wellbeing, and financial security.
• Generous learning and professional development opportunities.
• Access to resources that support continued technical growth and career progression.
• Opportunity to work on large-scale frontend infrastructure and technologies used by a global developer community.
• High level of technical ownership and influence over platform architecture and engineering standards.
• Collaborative environment with experienced Principal and Staff Engineers, product leaders, designers, and engineering teams.
• Remote-first culture designed to provide flexibility and enable employees to do their best work.
• Inclusive workplace committed to diversity, accessibility.