Senior Front-End / Full-Stack Engineer

High Tech Genesis; Ottawa; On-site; CAD 95,000 - 135,000; Full time

Job summary

High Tech Genesis seeks a Senior Front-End / Full-Stack Engineer to build and enhance modern enterprise web applications, with a strong focus on React and front-end development, and opportunities to contribute across APIs, backend services, and full-stack features.

The ideal candidate is a senior engineer with deep React expertise who can work effectively across the application stack, collaborate with product managers, designers, QA engineers, and architects, and participate in Agile/Scrum

Qualifications

• 5+ years of professional software development experience.
• Strong knowledge of HTML5 and CSS3.
• Experience building production-quality web applications.
• Experience with REST APIs and backend services.
• Experience with at least one backend technology such as Ruby on Rails, Python, Go, Node.js, or Java.
• Experience with Git, automated testing, and modern development practices.
• Strong understanding of responsive design, web app architecture and performance.
• Excellent problem-solving, communication and collaboration skills.

Responsibilities

• Build reusable, accessible, and maintainable UI components.
• Develop intuitive user interfaces and improve workflows, navigation, usability, and overall user experience.
• Develop and integrate REST APIs and backend services.
• Contribute to backend development using Ruby on Rails, Python, Go, or similar technologies.
• Deliver end-to-end features across front-end, backend, APIs, and data.
• Troubleshoot and optimize application performance and reliability.
• Write automated tests and participate in code reviews.
• Collaborate with product managers, designers, UX professionals, QA, architects, and engineering teams.
• Participate in Agile/Scrum development and contribute to technical design decisions.

Skills

Web development

HTML5

CSS3

REST APIs

Problem-solving

Communication skills

Team collaboration

React expertise

Agile/Scrum

Tools

Git

Automated testing

CI/CD

Docker

Cloud platforms

Job description

We are seeking a Senior Front-End / Full-Stack Engineer to build and enhance modern enterprise web applications. This role has a strong focus on React and modern front-end development, with opportunities to contribute across APIs, backend services, and full-stack features.

The ideal candidate is a senior engineer with strong React expertise who can work effectively across the application stack.

Key Responsibilities

• Build reusable, accessible, and maintainable UI components.
• Develop intuitive user interfaces and improve workflows, navigation, usability, and overall user experience.
• Develop and integrate REST APIs and backend services.
• Contribute to backend development using Ruby on Rails, Python, Go, or similar technologies.
• Deliver end-to-end features across front-end, backend, APIs, and data.
• Troubleshoot and optimize application performance and reliability.
• Write automated tests and participate in code reviews.
• Collaborate with product managers, designers, UX professionals, QA, architects, and engineering teams.
• Participate in Agile/Scrum development and contribute to technical design decisions.

Required Qualifications

• 5+ years of professional software development experience.
• Strong knowledge of HTML5 and CSS3.
• Experience building production-quality web applications.
• Experience with REST APIs and backend services.
• Experience with at least one backend technology such as Ruby on Rails, Python, Go, Node.js, or Java.
• Experience with Git, automated testing, and modern development practices.
• Strong understanding of responsive design, web application architecture, and performance.
• Excellent problem-solving, communication, and collaboration skills.

Preferred Qualifications

• Experience with Ruby on Rails, Python, or Go.
• Experience with microservices or distributed systems.
• Experience with design systems and reusable component libraries.
• Experience with CI/CD, Docker, or cloud platforms.
• Knowledge of web accessibility and performance optimization.
• Experience with AI-assisted development tools.
• Experience working in an Agile/Scrum environment.

Applicants must be legally authorized to work in Canada. Accommodation is available upon request throughout the recruitment process