Software Engineer - Front End

Tucows Domains is the world’s largest wholesale domain registrar, responsible for maintaining the health, neutrality, and openness of an important—but largely invisible part of the Internet: the domain name system (DNS).

As part of Tucows—one of the world’s largest Internet companies—Tucows Domains has a rich history of helping make the Internet better, operating globally under the Ascio, Enom, Hover and OpenSRS brands.

What's Next at Tucows

We embrace a people-first philosophy that is rooted in respect, trust, and flexibility. We believe that whatever works for our employees is what works best for us. Today, over one thousand people from over 20 countries are part of our team.

About the opportunity

In this role, your primary objective will be to architect, develop, and evolve user-facing web applications and reusable UI components with a strong focus on reliability, maintainability, and speed of delivery. You will work across both modern and legacy front-end codebases, improving existing applications and, when needed, migrating them fully to a more robust and modern architecture.

You are expected to operate with systems thinking and strong critical reasoning, understanding end-to-end flows (auth, permissions, async workflows, API boundaries, and failure modes), and making sound technical decisions under real-world constraints. You will regularly reverse engineer existing applications to diagnose issues, align implementations with intended behavior, and de-risk migrations.

You will work in a spec-driven engineering model, clarifying requirements, producing or refining feature-level specifications (acceptance criteria, edge cases, API contracts), and implementing them with a high bar for quality. You will also contribute to establishing repeatable patterns that allow teams to build features consistently across multiple applications.

AI-assisted development is a core part of the workflow. You will use tools such as Claude (and similar LLM-based assistants) to accelerate implementation, refactoring, and discovery, while applying strong engineering discipline: validation of outputs, secure coding practices, thorough testing, and human review. Your goal is to move faster without trading off correctness or maintainability.

Collaboration with design, product, and back-end teams is essential to ensure cohesive user experiences and smooth integration with back-end services. You’ll participate in architecture planning, code reviews, and delivery practices that ensure features are shipped safely and predictably, including deployments and post-release follow-up.

If you’re deeply passionate about front-end development, enjoy working in complex systems, and thrive modernizing legacy applications at pace, we’re eager to hear from you.

This is a remote role open to applicants in Canada. 

Responsibilities

• Develop and ship user-facing features using modern front-end technologies, ensuring they meet user needs and deliver measurable product value.
• Own work end-to-end, from feature discovery and spec clarification to implementation, testing, release, and production follow-up.
• Work across legacy and modern applications:
• Improve and stabilize existing codebases.
• Plan and execute incremental modernization and full migrations when required.
• Collaborate with UX/UI designers to translate design concepts into fully functional and interactive components, aligned with our team’s UI standards and design system.
• Determine and architect the structure of UI components and application patterns, focusing on efficiency, scalability, maintainability, and consistency across products.
• Build reusable/composable components and patterns that positively impact multiple projects and new products company-wide.
• Integrate front-end applications with back-end APIs in collaboration with back-end and full-stack developers, ensuring reliable data exchange and correct system behavior.
• Perform root cause analysis of issues