Senior Front End Developer

Toronto, ON
On-site
Posted Oct 23, 2026
1 position

Opens LinkedIn

Employment type: Full-time
Experience level: Senior · 5+ years
Posting language: English
Working hours: 40 hours per week
Seniority: Mid-Senior level
Application method: Direct apply is available

Job summary

Design, build, test, deploy, and maintain secure, accessible, responsive frontend applications and reusable components, integrating them with REST APIs, identity services, workflows, and other enterprise systems. Collaborate across product and engineering teams on development planning, testing, releases, troubleshooting, production support, and technical documentation.

Job details

Senior Software Developer – Front End Location: Toronto, ON Work Arrangement: Onsite – 5 days per week Contract Duration: November 9, 2026 – September 28, 2027 Contract Type: Contract About the Role We are seeking an experienced Senior Software Developer – Front End to design, develop, test, deploy, and maintain accessible, responsive, and user-friendly enterprise web applications for government programs. The successful candidate will translate wireframes, prototypes, technical specifications, and user stories into reusable, maintainable frontend components. This role involves integrating user interfaces with REST APIs, identity services, workflows, and other enterprise platform components while ensuring security, accessibility, performance, and reliability. The developer will collaborate with UX designers, product managers, business analysts, architects, backend developers, QA specialists, DevOps engineers, and other stakeholders throughout the software development lifecycle. Key Responsibilities Design, develop, test, deploy, and maintain responsive, accessible, and secure frontend applications. Build reusable user-interface components using modern JavaScript or TypeScript frameworks. Translate technical specifications, wireframes, prototypes, user stories, and acceptance criteria into working applications. Integrate frontend components with RESTful APIs, backend services, identity systems, workflows, notifications, and document services. Apply object-oriented programming practices, design patterns, refactoring, and clean code principles. Develop and maintain automated unit, component, integration, accessibility, and end-to-end tests. Ensure compliance with AODA and applicable WCAG accessibility standards. Participate in design walkthroughs, code reviews, estimation, sprint planning, backlog refinement, and release planning. Use Azure DevOps or comparable tools for source control, work management, continuous integration, and deployment. Diagnose and resolve browser, performance, security, accessibility, deployment, and integration issues. Support application releases, production readiness, post-implementation activities, and ongoing stabilization. Review and maintain application configuration, build scripts, and installation scripts. Collaborate with business analysts, UX designers, architects, backend developers, QA specialists, and DevOps engineers. Prepare and maintain technical, system, user, deployment, and support documentation. Adapt to changing priorities while meeting delivery commitments and project deadlines. Must-Have Skills and Qualifications Extensive experience designing and developing large-scale, multi-client, Internet-ready web applications. Strong hands-on experience with modern JavaScript or TypeScript frameworks. Experience developing responsive, component-based user interfaces and reusable frontend components. Experience translating technical specifications and detailed designs into working, tested, and maintainable applications. Experience with structured and Agile development methodologies. Experience with Azure DevOps or comparable tools, unit testing, source control, and application documentation. Strong experience integrating applications with RESTful APIs and RESTful web services. Experience with security gateways and protocols, including OAuth 2.0, JSON Web Tokens (JWT), SSL certificates, middleware, and communications protocols. Knowledge of object-oriented programming, design patterns, refactoring, and clean code principles. Experience with relational or hierarchical databases and query languages. Experience with application deployment, troubleshooting, and post-implementation support. Technical Skills and Experience Frontend Development: JavaScript, TypeScript, modern frontend frameworks, responsive design, and component-based development. API Integration: REST APIs, RESTful web services, middleware, and backend integrations. Security: OAuth 2.0, JWT, SSL certificates, identity and access services, and secure communications. Accessibility: AODA, WCAG, and accessible application design. Development Practices: Agile methodologies, structured development, object-oriented programming, design patterns, refactoring, and clean code. Tools and Testing: Azure DevOps or equivalent, source control, unit testing, integration testing, and deployment pipelines. Database Technologies: Relational and hierarchical databases, query languages, and application data retrieval. Support and Deployment: Debugging, performance optimization, application configuration, production support, and technical documentation. Soft Skills Strong written and verbal communication skills. Excellent analytical, problem-solving, and decision-making abilities. Ability to present ideas and participate effectively in technical design discussions. Strong interpersonal and collaboration skills. Ability to work under pressure, adapt to changing priorities, and meet aggressive deadlines. Nice to Have Experience working with the Ontario Public Service (OPS) or other public-sector organizations. Knowledge of public-sector development standards, governance, accessibility, security, information management, and documentation requirements. How to Apply Interested candidates can send their resumes to itjobs@i8is.com or contact me directly.

What you’ll do

Requirements

Requires extensive experience developing large-scale web applications with modern JavaScript or TypeScript frameworks, responsive component-based interfaces, and RESTful integrations. Candidates should also have experience with Agile practices, Azure DevOps or comparable tools, testing, security protocols, accessibility standards, databases, deployment, and production support.