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Intermediate Full Stack Developer Jobs in Ontario

Summary/Objective The Full Stack Engineer has a proficient understanding of the enterprise platform, and enhances user experience in response to client requirements. Responsibilities include ...

New

Full Stack Developer

Toronto, ON · Hybrid

CA$90K - CA$125K/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 ...

Scribendi is seeking a Senior Full-Stack Engineer to build AI-driven products that empower researchers worldwide. You will work across the full stack to deliver scalable, high-performance ...

\n \n \n \n \n Our client has a requirement for an experienced Full\-Stack Developer to be a key part at every stage of the SDLC. \n \n \n \n \n \n Experience working in a similar role is required and ...

Bachelor's degree in a technical field such as computer science, computer engineering or related field and 5+ years of full stack development experience required Proficiency in web development using ...

\n \n \n \n \n We have a pressing requirement for an experienced Full Stack Developer to join a hugely successful Irish owned tech company in North Dublin. \n \n \n \n \n \n You'll work in a team of ...

AI Full Stack Developer

Toronto, ON · On-site

CA$114K - CA$171K/yr

We are seeking a talented senior full stack developers or team leads to join our Canadian Apps and Infra team. This AI-enabled role involves leading a team to design, develop, and maintain components ...

We're looking for a talented Senior Full Stack Developer to join our team of skilled developers and contribute to the success of our products. Job Summary: We're seeking an experienced Senior Full ...

AI Full Stack Developer

Ottawa, ON · On-site

CA$114K - CA$171K/yr

We are seeking a talented senior full stack developers or team leads to join our Canadian Apps and Infra team. This AI-enabled role involves leading a team to design, develop, and maintain components ...

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Intermediate Full Stack Developer information

See Ontario salary details

$36.5K

$98.6K

$163K

How much do intermediate full stack developer jobs pay per year?

As of Jun 14, 2026, the average yearly pay for intermediate full stack developer in Ontario is $98,643.00, according to ZipRecruiter salary data. Most workers in this role earn between $61,500.00 and $124,000.00 per year, depending on experience, location, and employer.

What is L1, L2, L3, and L4 developer?

In the context of an Intermediate Full Stack Developer role, L1, L2, L3, and L4 typically refer to different levels of seniority or expertise within a company's technical ladder. L1 is usually entry-level, L2 and L3 are mid-level with increasing responsibilities, and L4 often denotes senior or lead developers who handle complex tasks and mentorship. These levels help define expectations, skills, and experience required for each stage in a developer's career progression.

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

To thrive as an Intermediate Full Stack Developer, you need solid proficiency in front-end and back-end programming languages (such as JavaScript, HTML/CSS, and a backend language like Node.js, Python, or Java), along with experience in database management and version control systems. Familiarity with frameworks (e.g., React, Angular, Express), cloud services, and tools like Git is typically required, and certifications in relevant technologies can be advantageous. Strong problem-solving abilities, effective communication, and teamwork distinguish high-performing developers in this role. These combined technical and interpersonal skills are crucial for efficiently building, deploying, and maintaining robust, user-friendly web applications in collaborative environments.

Is full stack worth it in 2026?

For an Intermediate Full Stack Developer, full stack development remains a valuable skill set in 2026 due to ongoing demand for versatile developers proficient in both front-end and back-end technologies. Staying current with frameworks like React, Node.js, and cloud platforms enhances job prospects and career growth in this field.

What is the difference between Intermediate Full Stack Developer vs Front End Developer?

AspectIntermediate Full Stack DeveloperFront End Developer
Required SkillsProficiency in both front-end and back-end technologies, including JavaScript, HTML, CSS, and server-side languagesSpecialized in client-side technologies like HTML, CSS, JavaScript, and frameworks such as React or Angular
Work EnvironmentWorks on both server and client-side applications, often in full project cyclesFocuses primarily on user interface and experience
Common UsageUsed across startups and full-stack teams in various industriesCommon in front-end teams within larger organizations

The Intermediate Full Stack Developer has a broader skill set covering both front-end and back-end development, while the Front End Developer specializes in creating and optimizing user interfaces. The choice depends on whether the role requires full-stack capabilities or a focus on client-side development.

Will Fullstack be replaced by AI?

Full Stack Developers perform tasks that involve designing, coding, and maintaining both frontend and backend systems, which require complex problem-solving and creativity. While AI tools can assist with coding and automation, they are unlikely to fully replace the need for human developers who understand project context, user experience, and system architecture. Continuous learning and adapting to new technologies remain essential in this role.

What is an Intermediate Full Stack Developer?

An Intermediate Full Stack Developer is a software professional with a few years of experience who is proficient in both front-end and back-end web development. They are capable of working on the user interface, server-side logic, databases, and APIs, often collaborating with other team members to build and maintain web applications. Intermediate developers have moved beyond entry-level tasks, can work independently on moderately complex projects, and are familiar with industry-standard tools and frameworks. Their role often includes troubleshooting, optimizing code, and contributing to architecture decisions while still learning and expanding their skill set.

Can I become a full stack developer with no experience?

Becoming an intermediate full stack developer typically requires gaining experience through self-study, coding projects, or coding bootcamps, as employers often look for demonstrated skills in front-end and back-end technologies. While it is possible to start learning without prior experience, reaching an intermediate level usually involves building a portfolio and understanding frameworks, databases, and version control tools like Git.

What are some common challenges faced by Intermediate Full Stack Developers when balancing front-end and back-end responsibilities?

Intermediate Full Stack Developers often encounter the challenge of effectively managing tasks across both front-end and back-end domains, which requires staying updated with rapidly evolving technologies on both sides. Coordinating the integration of user interfaces with server logic, ensuring seamless communication between components, and maintaining code quality across the stack can be demanding. Additionally, they frequently collaborate with UI/UX designers, DevOps engineers, and QA teams, making strong communication and time management skills essential. Addressing these challenges provides valuable experience and prepares developers for more advanced roles in the future.
What are the most commonly searched types of Full Stack Developer jobs in Ontario? The most popular types of Full Stack Developer jobs in Ontario are:
What cities in Ontario are hiring for Intermediate Full Stack Developer jobs? Cities in Ontario with the most Intermediate Full Stack Developer job openings:
Full Stack Developer

Full Stack Developer

Paymentus

Richmond Hill, ON • On-site

Other

Posted yesterday


Job description

Summary/Objective

The Full Stack Engineer has a proficient understanding of the enterprise platform, and enhances user experience in response to client requirements. Responsibilities include analyzing development requirements and building test driven code; performing root cause analysis to identified issues; evaluating current systems and proposing innovative design improvements.


Essential Functions/ Responsibilities

  1. Gather and define requirements working with 3rd party engineers to create partner products leveraging Paymentus platform features and integration tools
  2. Work with internal team to support the partner integration throughout its life cycle which includes documentation, troubleshooting, and configuration.
  3. Evaluate product enhancement requests and integration of existing Paymentus features and options
  4. Continuously acquire knowledge of the Paymentus platform and solutions to make practical application for product configuration
  5. Apply good enterprise development practices, develop and execute comprehensive test suites to ensure high quality of the deliverables



Education and Experience

Required

  1. Undergraduate degree in Computer Science or related field
  2. 3-4 years of working experience in IT development
  3. Advanced knowledge of OOP principles.
  4. Moderate to advanced skills in Java development skills or other object-oriented programming languages.
  5. Familiarity with HTTP protocol and RESTful APIs and related tools such as Postman or SoapUI.
  6. Moderate to advanced skills in responsive web development using HTML5, CSS3 (LESS, SASS, etc).
  7. Capable of writing and optimizing native JavaScript (ECMAScript6+).
  8. Basic to moderate skills working with JavaScript frameworks such as Angular, React, Vue, ExtJS.
  9. Moderate skills working with relational and NoSQL databases.
  10. Moderate skills working with Linux/Unix and scripting.
  11. Moderate ability to obtain and maintain server-side scalability and performance.
  12. Knowledge of information architecture structure and design
  13. Ability to knowledge share and act as mentor for rest of team.
  14. Strong written and verbal communication skills

Preferred

  1. Experience building RESTful services in NodeJS or SpringBoot
  2. Java Servlets, and J2EE frameworks such as Spring MVC, Struts 1.x/2.x
  3. Docker containerization, Kubernetes container orchestration
  4. Apache, Nginx, Tomcat 8.x
  5. Database experience with Oracle 11g and PL/SQL
  6. NoSQL experience with one of Couchbase, Dynamo, Hbase, InfluxDB, Mongo
  7. Implementation of a TICK / TIG stack
  8. jQuery
  9. Freemarker
  10. JSON, XML/XSD, SOAP
  11. Mobile web development targeting Android/iOS
  12. Testing frameworks including Selenium, JUnit, Mockito, Mocha
  13. Cloud technologies such as AWS, GCP
  14. Eclipse IDE, IntelliJ, WebStorm
  15. GIT, or similar distributed source control with Mercurial, Subversion, etc.
  16. .NET experience (integration purposes)
  17. Familiarity with Linux or BSD
  18. Contributions to open-source projects and developer communities such as Github, Apache, StackOverflow, TopCoder, Google Developer Groups.


This is an existing vacancy.


EEO Statement

Paymentus is an equal opportunity employer. We enthusiastically accept our responsibility to make employment decisions without regard to actual or perceived race,creed, color, age, sex or gender (including pregnancy, childbirth and related medical conditions), gender identity or gender expression (including transgender status), sexual orientation, national origin, ancestry, citizenship status, religion, marital status, physical or mental disability, military service or veteran status, genetic information, protected medical condition as defined by applicable state or local law, genetic information, or any other classification protected by applicable federal, state, and local laws and ordinances. Our management is dedicated to ensuring the fulfillment of this policy with respect to hiring, placement, promotion, transfer, demotion, layoff, termination, recruitment advertising, pay, and other forms of compensation, training, access to facilities and programs and general treatment during employment.

Reasonable Accommodation

Paymentus recognizes and supports its obligation to endeavor to accommodate job applicants and employees with known physical or mental disabilities who are able to perform the essential functions of the position, with or without reasonable accommodation. Paymentus will endeavor to provide reasonable accommodations to otherwise qualified job applicants and employees with known physical or mental disabilities, unless doing so would impose an undue hardship on the Company or pose a direct threat of substantial harm to the employee or others.

An applicant or employee who believes he or she needs a reasonable accommodation of a disability should discuss the need for possible accommodation with the Human Resources Department, or his or her direct supervisor.