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Senior Full Stack Developer Jobs in Whitby, ON (NOW HIRING)

KEV Group

Senior Full Stack Engineer

Toronto, ON · On-site

We are hiring a Senior Developer to help design, evolve, and scale the core systems that power KEV ... Deliver Full-Stack Capabilities Drive the design and development of user-facing experiences using ...

Quantiphi, Inc.

Full Stack Developer

Toronto, ON · Remote

Full Stack Software Developer Experience Level: 5-10 yrs Work Location: US East/Canada (Remote) Role Overview: We're looking for a Full Stack Software Developer to design and build scalable, high ...

Ci

Full Stack Developer

Toronto, ON

CA$69K - CA$119K/yr

The Full Stack Developer is responsible for designing and developing web-based and middle-tier applications that support the firm's investment management and trading systems. This role works closely ...

Autodesk

Senior Full-Stack Engineer (3D)

Toronto, ON · On-site

Job Requisition ID # 26WD97295 Position Overview As a Senior Full-Stack Engineer (3D) , you will be a lead contributor in building the next generation of AI-native applications. You sit at the ...

Td

Sr. Full Stack Developer, TD Securities

Toronto, ON · On-site

CA$126K - CA$164K/yr

Lead the design and development of modern full-stack applications across Capital Markets, with a ... Mentor junior and intermediate developers, while promoting engineering best practices across the ...

Td

Sr Full Stack Developer, TD Securities

Toronto, ON

CA$126K - CA$164K/yr

Lead the design and development of modern full-stack applications across Capital Markets, with a ... Mentor junior and intermediate developers, while promoting engineering best practices across the ...

Human Agency

Senior Full-Stack Engineer

Toronto, ON

We're seeking a Senior Full-Stack Engineer to join our growing team. In this role, you'll lead ... Experience in DevOps, CI/CD pipelines, and secure release management. * Background in security ...

Scotiabank

Full Stack Developer

Toronto, ON · On-site

... Senior Manager, on the design, development, integration, and implementation of Insider Threat ... computer engineering or related field and 5+ years of full stack development experience required ...

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Senior Full Stack Developer information

What is the difference between Senior Full Stack Developer vs Backend Developer?

AspectSenior Full Stack DeveloperBackend Developer
Required SkillsProficiency in both frontend and backend technologies, such as JavaScript, HTML, CSS, and server-side languages like Node.js, Python, or JavaSpecialized in server-side development, working with languages like Java, Python, Ruby, or PHP, and database management
Work EnvironmentCollaborates across frontend and backend teams, often involved in full project lifecycleFocuses primarily on backend systems, APIs, and database integration
Common UsageUsed in roles requiring full project oversight and versatile development skillsUsed in roles focused on server-side logic, database management, and API development

The main difference is that a Senior Full Stack Developer handles both frontend and backend development, providing a comprehensive approach to projects, while a Backend Developer specializes solely in server-side logic and database management. Both roles require strong programming skills, but the Full Stack Developer's expertise spans the entire technology stack.

How does a Senior Full Stack Developer typically collaborate with cross-functional teams during a project lifecycle?

As a Senior Full Stack Developer, you'll frequently collaborate with designers, product managers, QA engineers, and other developers to deliver end-to-end solutions. You'll be involved in requirements discussions, offer technical guidance, and help align frontend and backend development with business goals. Your role often includes code reviews, mentoring junior team members, and ensuring seamless integration across various systems. This collaborative environment encourages knowledge sharing and innovation while ensuring project success.

What are the key skills and qualifications needed to thrive as a Senior Full Stack Developer, and why are they important?

To thrive as a Senior Full Stack Developer, you need advanced proficiency in both front-end and back-end programming languages, frameworks, and a solid understanding of software architecture, usually supported by a relevant degree and several years of experience. Mastery of tools such as Git, Docker, CI/CD systems, and cloud platforms like AWS or Azure is typically required, alongside familiarity with databases and version control systems. Strong problem-solving abilities, leadership, effective communication, and collaboration skills set exceptional developers apart. These skills and qualities are crucial for delivering robust, scalable solutions while mentoring teams and efficiently bridging gaps between client requirements and technical implementation.

What are Senior Full Stack Developers?

Senior Full Stack Developers are experienced professionals who design, develop, and maintain both the front-end and back-end components of web applications. They are proficient in multiple programming languages and frameworks, enabling them to handle servers, databases, APIs, and user interfaces. In addition to coding, they often lead development teams, make architectural decisions, and ensure software quality and scalability. Their expertise allows them to oversee the entire application lifecycle, from concept to deployment.
What job categories do people searching Senior Full Stack Developer jobs in Whitby, ON look for? The top searched job categories for Senior Full Stack Developer jobs in Whitby, ON are:
What cities near Whitby, ON are hiring for Senior Full Stack Developer jobs? Cities near Whitby, ON with the most Senior Full Stack Developer job openings:
Senior Full Stack Developer jobs near you
Infographic showing various Senior Full Stack Developer job openings in Whitby, ON as of July 2026, with employment types broken down into 83% Full Time, 3% Part Time, 1% Temporary, and 13% Contract. Highlights an 80% Physical, 5% Hybrid, and 15% Remote job distribution.
Senior Full Stack Developer - Generative AI & Autonomous Agents (10036) Toronto, Canada - Hybrid

Senior Full Stack Developer - Generative AI & Autonomous Agents (10036) Toronto, Canada - Hybrid

Extreme Networks

Toronto, ON • On-site

Full-time

Posted 27 days ago

Job description

We are seeking an experienced Senior Full Stack Developer with deep expertise in backend systems (Java, Python, microservices) and modern UI frameworks (Angular, React) to join our high-performing agile team.  
This role focuses on building robust, scalable, and user-friendly end-to-end solutions for GenAI applications, combining cutting-edge backend services with intuitive front-end experiences. 
Key Responsibilities
  • Full Stack Development:
  • Design, implement, and optimizeend-to-end solutions for GenAI applications, from backend services to user-facing interfaces. 
  • Build modular and reusable UI components in Angular and React, ensuring responsive and accessible interfaces. 
  • Develop and optimize backend services and APIs (REST, GraphQL, gRPC) to support real-time AI-driven applications. 
  • Backend Engineering:
  • Architect and maintaindistributed microservices (synchronous and asynchronous) using Java, Python, and FastAPI. 
  • Integrate ML models into scalable, production-ready systems in collaboration with ML engineers and scientists. 
  • Manage workflow orchestration with DAGs and asynchronous task queues. 
  • Implement automated testing, CI/CD pipelines, containerization (Docker, Kubernetes), and cloud-native deployments (AWS, Azure, GCP). 
  • Ensure security, performance optimization, and fault tolerance in backend systems. 
  • Frontend Engineering:
  • Collaborate with UX and product teams to create human-in-the-loop AI experiences with Angular and React. 
  • Implement robust state management (Redux, NgRx, or equivalent) for real-time, data-intensive applications. 
  • Optimize rendering, bundle size, and performance for enterprise-scale UIs. 
  • Lead UI testing (Jest, Cypress, Playwright, Jasmine, Karma) to maintain quality and reliability. 
  • Collaboration & Leadership:
  • Work closely with cross-functional teams to deliver cohesive GenAI-powered products. 
  • Mentor junior developers, promote coding standards, and drive best practices across front-end and back-end development. 
  • Communicate effectively with technical and non-technical stakeholders, ensuring transparency and alignment. 
Qualifications
  • 10+ years of professional experience as a full stack or combined backend/frontend engineer. 
  • Backend expertise: 
Strong skills in Java and Python, with experience in microservices and distributed systems. 
Deep knowledge of FastAPI, OpenAPI, gRPC, and asynchronous workflows. 
Proficiency with SQL and NoSQL databases, distributed computing (Kafka, Redis, RabbitMQ), and performance optimization. 
  • Frontend expertise: 
Expert-level experience with Angular and React, including TypeScript, JavaScript (ES6+), HTML5, CSS3/SASS. 
Strong grasp of state management frameworks (Redux, NgRx, etc.). 
Proven ability to build responsive, accessible, and performant enterprise UIs. 
  • Cloud & DevOps: Hands-on with AWS/Azure/GCP, Docker, Kubernetes, and CI/CD pipelines. 
  • Strong understanding of security best practices across the stack. 
  • Excellent collaboration, problem-solving, and communication skills. 
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
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