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. It’s also why the majority of our roles are remote‑first, meaning you can work from anywhere you can connect to the Internet!

We are looking for an experienced backend engineer who enjoys solving complex problems, sharing knowledge, and building reliable software. As a Senior Backend Software Engineer, you will design, build, and maintain the services, databases, and APIs that support our products. This is a hands‑on individual contributor role that also includes responsibility for technical direction and coordinated delivery across multiple systems.

You will lead design discussions, break down complex initiatives, coordinate technical work, and collaborate with Product, Operations, and other engineering teams to deliver secure, reliable, and maintainable software. This is a remote position for applicants based in Canada. Design, develop, test, and maintain secure, scalable, and reliable backend systems.

Provide technical direction across multiple applications and services. Lead architecture and design discussions and document important technical decisions. Translate business and product requirements into practical technical plans.

Break down initiatives, coordinate technical work, and manage dependencies and blockers. Design and maintain APIs, database schemas, integrations, and data contracts. Improve system performance, security, observability, and maintainability.

Review code and technical designs and help maintain engineering standards.



Debug complex production issues and lead the technical response to incidents. Write and maintain automated tests, technical documentation, and CI/CD workflows.

Provide technical guidance and mentorship to other engineers. Bachelor’s degree in Computer Science, Engineering, or a related field, or equivalent practical experience. ~6+ years of professional backend software engineering experience. ~ Experience providing technical direction while remaining hands‑on. ~ Robust experience with Python, Go, or similar backend languages. ~ Experience with relational databases, preferably PostgreSQL, including schema design and query optimization. ~ Strong understanding of REST, JSON, XML, and related web technologies. ~ Experience with automated testing, Continuous Integration, Git, and modern development workflows. ~ Experience working in a remote, distributed team.

Experience with AWS, Azure, or Google Cloud. Familiarity with networking, Linux, infrastructure operations, or Internet protocols such as DNS, EPP, and RDAP. The base salary range for this position is $145,000 – $155,000 CAD for Canadian residents.

At Tucows we care about protecting the open Internet, narrowing digital divide, and supporting fairness and equality. We also know that diversity drives innovation. We are committed to inclusion across race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status or disability status.

We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform crucial job functions, and to receive other benefits and privileges of employment. We use AI-enabled tools throughout our recruitment process to help us work more efficiently and consistently. Learn more about Tucows, our businesses, culture and employee benefits on our site here. #

📌 Senior Backend Engineer JS (REMOTE) (Quebec City)
🏢 Socket.dev
📍 Quebec City