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Senior Full Stack Software Developer Jobs in Markham, ON

We're seeking a Senior Full-Stack Engineer with strong software engineering expertise and experience in derivatives trading systems. In this role, you'll design, develop, and support scalable, cloud ...

Full Stack Software Developer I

Toronto, ON · On-site

CA$94K - CA$127K/yr

Join the Center of Money team as a Full Stack Software Developer and accelerate your career while building impactful financial technology. You'll contribute to strategic products and new growth ...

We are seeking an engineering expert and an execution-focused senior full-stack software engineer ... Experience with DevOps, RESTful API design and development. * Experience working with GenAI ...

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 ...

Full Stack Software Developer

Toronto, ON · Hybrid

CA$90K - CA$100K/yr

You possess strong software design, development and testing skills acquired through both a strong ... Hands-on experience working with senior-level business leaders Schedule: This is an office-based ...

Senior Software Engineer

Toronto, ON · On-site

$90 - $120/hr

Senior Full Stack Software Engineer Location: Onsite in Toronto, ON About SalesJack SalesJack is a fast-growing, profitable sales software platform (CRM, Prospecting Service) purpose-built for ...

Full Stack Software Developer

Toronto, ON · Hybrid

CA$90K - CA$100K/yr

You possess strong software design, development and testing skills acquired through both a strong ... Hands-on experience working with senior-level business leaders Schedule: This is an office-based ...

You possess strong software design, development and testing skills acquired through both a strong ... Hands-on experience working with senior-level business leaders Schedule: This is an office-based ...

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Showing results 1-20

Senior Full Stack Software Developer information

See Markham, ON salary details

$56.4K

$122.5K

$181.4K

How much do senior full stack software developer jobs pay per year?

As of Jul 14, 2026, the average yearly pay for senior full stack software developer in Markham, ON is $122,521.00, according to ZipRecruiter salary data. Most workers in this role earn between $104,213.00 and $140,214.00 per year, depending on experience, location, and employer.

What is the difference between Senior Full Stack Software Developer vs Software Engineer?

AspectSenior Full Stack Software DeveloperSoftware Engineer
CredentialsBachelor's degree in CS or related field; experience in full stack developmentBachelor's degree in CS or related field; may have certifications in specific technologies
Work EnvironmentCollaborates across front-end and back-end teams, often in agile settingsDesigns, develops, and maintains software applications, often in teams or individually
Industry UsageCommon in tech companies, startups, and agencies requiring versatile development skillsWidely used across industries for software development roles

While both roles involve software development, a Senior Full Stack Software Developer specializes in both front-end and back-end technologies, often taking on leadership responsibilities. A Software Engineer may focus on specific areas of software design and implementation, with less emphasis on full stack expertise. The roles overlap in skills and industry usage, but the senior developer typically has broader responsibilities and experience in full stack development.

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

A Senior Full Stack Software Developer needs advanced proficiency in both front-end and back-end programming languages, strong problem-solving skills, and several years of relevant software development experience. Familiarity with frameworks like React or Angular, back-end technologies such as Node.js or Django, and experience with cloud platforms, CI/CD tools, and version control systems like Git are typically required. Excellent communication, teamwork, and leadership abilities help developers collaborate effectively and mentor junior team members. These skills are crucial for designing robust, scalable applications and leading complex projects to successful completion.

What is a Senior Full Stack Software Developer?

A Senior Full Stack Software Developer is an experienced professional who designs, develops, and maintains both the front-end and back-end components of web applications. They are proficient in multiple programming languages and frameworks, enabling them to work on the entire technology stack, from databases and servers to user interfaces. In addition to coding, they often lead projects, mentor junior developers, and help architect scalable solutions that meet business needs. Their role requires strong problem-solving skills, a deep understanding of software development best practices, and the ability to collaborate with cross-functional teams.

What types of projects and technologies can a Senior Full Stack Software Developer expect to work on, and how does the team typically collaborate?

As a Senior Full Stack Software Developer, you can expect to work on a diverse range of projects such as developing scalable web applications, integrating APIs, and optimizing system performance. The tech stack often includes front-end frameworks like React or Angular, back-end environments such as Node.js, Python, or Java, and databases like PostgreSQL or MongoDB. Collaboration is highly cross-functional—you’ll regularly coordinate with product managers, UX/UI designers, QA engineers, and other developers through agile methodologies, code reviews, and sprint planning sessions. This role offers opportunities to mentor junior developers, influence architectural decisions, and contribute to continuous process improvement.
What cities near Markham, ON are hiring for Senior Full Stack Software Developer jobs? Cities near Markham, ON with the most Senior Full Stack Software Developer job openings:
Infographic showing various Senior Full Stack Software Developer job openings in Markham, ON as of July 2026, with employment types broken down into 85% Full Time, 5% Part Time, 1% Temporary, and 9% Contract. Highlights an 81% Physical, 6% Hybrid, and 13% Remote job distribution, with an average salary of $122,521 per year, or $58.9 per hour.

Full-Stack Software Developer

Engineered Intelligence Inc.

Mississauga, ON • On-site, Remote

Full-time

PTO

Posted 9 days ago


Job description

Our Business: Engineered Intelligence Inc. (EII) is a power infrastructure technology company with headquarters in Calgary and offices in Toronto. We built a cloud-based software product, ENGIN, that is focused on helping our clients manage their transmission and distribution assets. ENGIN, enables our clients to monitor and maintain the condition of their assets and networks. ENGIN, is analytics-driven, with machine learning workloads and a vision of AI assisted planning.


With our intensive knowledge of grid-level assets, we provide our clients with the white glove experience. From software implementation, maintenance, and assistance with regulatory matters to ensure their grids are managed safely and with optimal cost efficiency.


If you would like to learn more, please visit our website at https://www.engineeredintelligence.com/


Who we are: We are a lean, fully remote team of professionals spanning across Canada who truly enjoy working together. We are alight with passion over building this remarkable business from the ground up. Everything we do matters. We are all experts in our field working together to build a strong company and achieve exceptional career milestones.

  • We value Teamwork as we believe great people do great things. We invest in our people and work together to achieve both individual and shared goals.
  • We are Committed to our Customers as our customers were our inspiration, now they are our focus.
  • We value Innovation & Diversity. We explore how to do what has yet to be done; We celebrate the limitless value diverse teams bring to innovation.
  • We take Ownership. This means we take initiative to exceed expectations and exercise accountability every step of the way.


The Position:Do our values align with you? Are you an experienced Full-Stack Software Developer looking to join a dedicated team working together to build rewarding careers and an incredible business? If so, please read on for more information!


Thisis a full-time role reporting to the Head of Engineering. This role will contribute to all stages of the software development life cycle: from participating in design and requirements breakdown, architecture and technical solutioning, analyzing / refactoring code, application development, and creating documentation. Strong full-stack capabilities are desired for this role, but developers with particularly strong experience either on the front-end or back-end and desire to do full-stack are most welcome to apply.


Work Location:
We are a hybrid company with offices in Calgary and Toronto. We spend much of our time working remotely but also meet regularly in our offices. Only candidates that can regularly work in either of these locations will be considered.


The ideal candidate will have:

  • Bachelor's Degree in Software Engineering, Computer Science or equivalent
  • 4+ years developing dynamic web-based applications in a professional environment
  • Experience with front-end development including:
    • Strong knowledge of typescript and it's best practices
    • Front-end development using common frameworks - Angular/React
      • Experience with recent versions of Angular or desire to work with Angular
    • Developing RESTful web APIs.
  • Experience with back-end development including
    • Knowledge of Java/Kotlin or similar languages
    • Experience with frameworks like Spring / Spring Boot
    • Experience with relational databases and ORMs
  • Strong focus on quality including code quality, unit testing, and general advocacy for continuous improvement
  • Ability to work independently and as part of a team; a self-starter, comfortable working with complex systems, eager to take on a wide range of responsibilities.


It would be great if you also have:

  • Understanding of AWS cloud services.
  • Knowledge of, exposure to, or experience with:
    • Web application server-side development frameworks, specifically Node.js / express.js with NoSQL database.
    • Data visualization and data analytics libraries and tools.
  • Exposure to Apache Spark
  • Knowledge or exposure to Scala
  • Knowledge or exposure to Python
  • Any familiarity with electrical engineering concepts and terminology.
  • Interest or exposure to machine learning tools and workloads.
  • Experience building/maintaining multi-tenant product environments, data management for multi-tenant environments, database migrations for multi-tenant environments.
  • Contribution to any opensource projects or libraries.


As a Full-Stack Software Developer you will:

  • Be involved throughout the software development life-cycle:
    • Offer suggestions and opinions towards technical solutioning for new development tasks.
    • Complete software development tasks across the application with an emphasis on high-quality code.
    • Identify and quantify (i.e. priority, time estimate) "tech debt" within the codebase(s).
  • Produce high-quality, effective, and sustainable code; ensure code is functional, testable, maintainable, and meets business requirements; ensure code is tested with test cases.
  • Understand the ins-and-outs of the company's software products from a technical perspective (i.e., architecture, design patterns, code structure).
  • Proficient in core aspects of business logic and user interactions with the company's software products.
  • Accept and produce feedback with the software development team:
    • Perform peer-reviews, review of pull requests for code style, design patterns, and best practices.
    • Perform code reviews and documentation when required to share knowledge with other team members.
    • Contribute towards best practices and technical resources within the development team.
  • Involvement in software implementation process as required, such as client delivery.
  • Peer within the development team, and mentor to intermediate, junior, and student developers


What we offer:

  • Flexible work hours (Core working hours 10:00AM to 3:00PM).
  • Autonomy with a wide range of responsibilities, opportunities for advancement, and cross-disciplinary exposure.
  • Stock options so you can realize the value created with your work in the organization.
  • The opportunity to put your skills to work, add milestones to your resume, and be part of something great from the early stages of a promising business.
  • Interactive and supportive remote workplace culture.
  • Competitive compensation package.
  • Paid time off and Benefits.