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Senior Full Stack Software Developer Jobs in Toronto, ON

PHD Solutions Inc

Be Seen First

Full Stack Software Developer

Burlington, ON · On-site

CA$75K - CA$100K/yr

Full-Stack Software Developer Location Burlington, Ontario (on-site, majority of time in office ... You will work within a small, experienced team alongside two senior developers, with direct access ...

Manulife

Senior Full Stack Software Engineer

Toronto, ON · Hybrid

CA$113K - CA$163K/yr

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 ...

Intuit

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 ...

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 ...

YuJa Inc.

Full Stack Software Developer

Toronto, ON · On-site

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 ...

SalesJack

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 ...

YuJa

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 ...

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Senior Full Stack Software Developer information

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 are the most commonly searched types of Full Stack Software Developer jobs in Toronto, ON? The most popular types of Full Stack Software Developer jobs in Toronto, ON are:
What cities near Toronto, ON are hiring for Senior Full Stack Software Developer jobs? Cities near Toronto, ON with the most Senior Full Stack Software Developer job openings:
Senior Full Stack Software Developer jobs near you
Infographic showing various Senior Full Stack Software Developer job openings in Toronto, ON as of July 2026, with employment types broken down into 83% Full Time, 5% Part Time, 1% Temporary, and 11% Contract. Highlights an 80% Physical, 7% Hybrid, and 13% Remote job distribution.
Senior Full Stack Software Engineer

Senior Full Stack Software Engineer

Kraft Heinz

Toronto, ON • Hybrid

Full-time

Posted 14 days ago

Kraft Heinz rating

7.0

Company rating: 7.0 out of 10

Based on 122 frontline employees who took The Breakroom Quiz

231st of 434 rated food and drinks producers

Job description

Job Description

Senior Full Stack Software Engineer at a glance...

Location: Toronto, ON

Hybrid: 3 days/week

We'rehiring a Senior Full Stack Software Engineer to join one of our product engineering pods, building and evolving features end-to-end across frontend and backend systems.You'llpartner closely with product managers, designers, and other engineers to ship high-quality, reliable software that directly affects user experience and product outcomes.This role is hands-on and highly collaborative - the ability to communicate clearly, present technical decisions, and align cross-functional partners is as important as the code you write.

What's on the menu?

Product Development

  • Design and implement end-to-end product features across frontend and backend

  • Build responsive, performant user interfaces using React (TypeScript)

  • Develop scalable APIs and backend services using Python (FastAPI)

  • Translate product requirements into clean, maintainable code

System Design & Implementation

  • Contribute to application architecture and technical design decisions

  • Ensure code quality, performance, and scalability of services

  • Work with relational databases - data modeling, schema, and migrations

  • Integrate with internal and external APIs

Quality & Delivery

  • Write unit and integration tests to ensure reliability

  • Participate in code reviews and uphold engineering standards

  • Contribute to CI/CD workflows and deployment processes

  • Troubleshoot, debug, and resolve production issues

Collaboration & Communication

  • Partner with product managers and designers to refine requirements and shape solutions

  • Communicate technical trade-offs and risks clearly to both technical and non-technical stakeholders

  • Present technical designs, approaches, and post-mortems in team forums and reviews

  • Mentor junior and mid-level engineers; share knowledge across the pod

  • Participate actively in sprint planning, stand-ups, retrospectives, and other team routines

Recipe for Success - apply now if this sounds like you!

  • 5+ years of experience in software engineering

  • Strong hands-on experience with:

  • JavaScript / TypeScript (React)

  • Python (FastAPI)

  • RESTful API design and backend development

  • SQL and database design

  • Experience building and shipping production-grade applications

  • Experience working with cloud platforms (Azure preferred)

  • Strong understanding of modern software engineering practices

  • Ability to work independently and take ownership in a product-focused team

  • Communication & Soft Skills:

  • Excellent written and verbal communication skills in English - fluent professionalproficiencyrequired

  • Confident presenting technical concepts, trade-offs, and decisions to engineers, product managers, and senior stakeholders

  • Strong active-listening and stakeholder-management skills; able to navigate ambiguity and align partners around solutions

  • Comfortable giving and receiving constructive feedback in code reviews, design discussions, and retrospectives

  • Collaborative, low-ego, and pragmatic - prioritizes team and product outcomes over individual preference

  • Experience with automated testing and CI/CD pipelinespreferred

  • Performance optimization experiencepreferred

  • Experience with observability toolingpreferred

  • Experience working in Agile environmentspreferred

  • Experience mentoring engineers or leading technical discussions preferred

Location(s)Toronto - Queen's Quay - Headquarters

Kraft Heinz is an Equal Opportunity Employer - Underrepresented Ethnic Minority Groups/Women/Veterans/Individuals with Disabilities/Sexual Orientation/Gender Identity and other protected classes.

What Kraft Heinz employees say

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