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

Ci

Full Stack Developer

Toronto, ON · On-site

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 ...

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 ...

Magna

Full Stack Developer

Brampton, ON · On-site

CA$100K/yr

TheFull Stack Developerwill work with the IoT architect,technical product ownerand a team of developers(Sr full stack, software, IoT, data science)toensure the efficient and effective development of ...

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 ...

Human Agency

Senior Full-Stack Engineer

Toronto, ON · On-site

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 ...

Konrad

Full Stack Developer

Toronto, ON · Hybrid

CA$90K - CA$120K/yr

About The Role As a Full Stack Developer you'll be tasked with working on one of our web application projects. Working within the software development team, your duties will require you to assist in ...

TaliPay, Inc.

Full Stack Product Engineer

Toronto, ON · On-site

Collaborate with DevOps teams to deploy and maintain web applications in production environments ... The position reports to our Senior Full Stack Engineer. Challenge Test * Dev Team-code-challenge ...

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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 is a senior full stack developer?

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 are the most commonly searched types of Full Stack Developer jobs in Markham, ON? The most popular types of Full Stack Developer jobs in Markham, ON are:
What cities near Markham, ON are hiring for Senior Full Stack Developer jobs? Cities near Markham, 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 Markham, ON as of August 2026, with employment types broken down into 1% Internship, 88% Full Time, 5% Part Time, 5% Contract, and 1% Nights. Highlights an 84% Physical, 6% Hybrid, and 10% Remote job distribution.

Senior Full Stack Developer (TypeScript / Node.js / Mobile)

Pillway

Brampton, ON • On-site

CA$100K - CA$130K/yr

Full-time

Medical, Dental

Re-posted 4 days ago

Job description


About Pillway

Pillway isn't just a pharmacy, we're a healthcare technology company at the forefront of the industry. We are revolutionizing patient medication management through cutting edge technology, creating a truly seamless and patient-first experience. Join our team and play a pivotal role in shaping the future of pharmacy services in a high growth, innovative environment.

We are seeking a highly skilled Senior Full Stack Developer with 4+ years of experience to join our core engineering team. This role is pivotal for both maintaining and continuously evolving our existing web and mobile applications, and taking the lead in developing new services across our modern ecosystem. We are looking for an ideal candidate who deeply values TypeScript as a first-class citizen and possesses the expertise to architect scalable, maintainable solutions that seamlessly connect complex backends with dynamic, reactive mobile and web frontends.

Key Responsibilities

●Architect & Develop: Design and implement robust, production-grade features using Node.js and mobile frameworks (Flutter/React Native).

  • Maintain Legacy Systems: Provide expert-level support and occasional feature enhancements for our core PHP/Laravel applications.

  • System Integration: Develop and maintain RESTful APIs that ensure seamless communication between our Laravel monolith and new Node.js microservices.

  • Code Quality: Advocate for and implement best practices in testing (Unit/Integration), CI/CD, and documentation.

  • Performance Optimization: Identify bottlenecks in both the mobile frontend (Flutter/React Native) and backend (Node/PHP) to ensure a high-performance user experience.

Technical Requirements:

  • Mastery of TypeScript: Deep understanding of types, interfaces, and advanced TS patterns.

  • Node.js Expertise: Proven experience building backend services (knowledge of NestJS or Express is a plus).

  • Mobile Development Proficiency: Experience building and shipping production mobile apps with Flutter and/or React Native, including state management patterns and native module integration.

  • PHP/Laravel Familiarity: Ability to navigate, debug, and extend existing Laravel codebases.

  • Database Knowledge: Strong SQL skills (preferably MySQL) and experience with ORMs.

  • Strong understanding of application security principles (OWASP Top 10), authentication/authorization patterns (JWT, OAuth), input validation, data protection, and secure API design. Experience conducting code reviews with a security-first mindset.

  • DevOps: Familiarity with Docker, Kubernetes, and cloud hosting (Azure).

Nice to Have:

  • Practical experience using AI-powered development tools (e.g., Cursor, Claude) to improve productivity, code quality, testing, refactoring, and documentation workflows.

  • Experience transitioning features from a monolith to a service-oriented architecture.

  • A strong opinion on "clean code" and architectural patterns (SOLID, Clean Architecture).

  • AI inclusion in daily tasks

Why Join Us

Joining Pillway means joining a fast-paced, high-growth environment where your work has a direct impact on the health and wellness of Canadians.

  • Hybrid Work Model: We value the synergy of in-person collaboration and the focus of remote work. This role offers a balanced hybrid schedule.

  • Competitive Compensation: We offer market-aligned salaries and comprehensive health and dental benefits.

  • Dynamic Culture: We are a team of innovators. You’ll find a culture that values transparency, diverse perspectives, and a "get-it-done" attitude.

  • Career Growth: As we scale across Canada, your role and influence within the organization will grow with us.

Pillway supports a workforce of diverse backgrounds and encompasses policies and initiatives designed to help all employees feel welcomed and well-equipped to succeed. We are an inclusive employer and provide accommodations for applicants with disabilities throughout the recruitment process. Please let us know if you require accommodation.

Note: We appreciate every application we receive, but due to our overwhelming response, we will only be able to contact those who are under consideration for the position.