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Mid Level Backend Developer Jobs in Toronto, ON (NOW HIRING)

Hays

Sr Backend Developer

Toronto, ON · On-site

CA$90 - CA$100/hr

Proven senior-level experience as a hands-on Backend Developer (not just design/lead) * Strong expertise in Java and Kotlin * Demonstrated experience building scalable APIs and distributed systems

Rumble

Senior Back-End Developer

Toronto, ON

CA$135K - CA$154K/yr

The Senior Back-End Developer is responsible for designing, building, and maintaining high ... The actual salary offered varies depending on the candidate's skill level and experience. This ...

Bettermode Inc

Staff Backend Engineer

Toronto, ON

Lead complex backend work in TypeScript and NestJS - event-driven systems on Kafka, PostgreSQL and ... Your code reviews shape how mid-level engineers grow. Your judgment shapes what the team ships.

Plooto

Senior Backend Engineer

Toronto, ON · Remote

About Plooto Plooto is a Canada-born fintech company on a mission to give small and mid-sized ... Your background: * 5+ years of professional backend engineering experience (preferably in high ...

Wand

Senior Backend Engineer

Toronto, ON · Remote

$150K - $250K/yr

... skill level, or accessibility needs. We want to build the future of game assistance, and we're ... Role Overview We're hiring a Senior Backend Engineer to own meaningful parts of Wand's backend and ...

Smooth Commerce

Senior React Developer

Toronto, ON · Remote

Mid-level to Senior (minimum 7 years of experience) Annual Salary: CA$85,000 to CA$115,000 annually ... Collaborate closely with the Product & design team and other Development Teams (backend, iOS and ...

Smooth Commerce

Senior React Developer

Toronto, ON · On-site +1

CA$85K - CA$115K/yr

Mid-level to Senior (minimum 7 years of experience) Annual Salary: CA$85,000 to CA$115,000 annually ... Collaborate closely with the Product & design team and other Development Teams (backend, iOS and ...

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All JobsMid Level Backend Developer JobsMid Level Backend Developer Jobs in Toronto, ON

Mid Level Backend Developer information

What are some typical challenges a Mid Level Backend Developer might face when working on large-scale applications?

As a Mid Level Backend Developer, you may frequently encounter challenges related to maintaining code quality and ensuring scalability as applications grow. Managing database performance, optimizing API responses, and integrating with legacy systems are common tasks that require both technical skill and problem-solving ability. Collaboration with frontend developers, DevOps engineers, and QA testers is essential to ensure smooth deployments and consistent user experiences. Staying up-to-date with new frameworks and technologies, while balancing project deadlines, is also a key part of the role.

What are Mid Level Backend Developers?

Mid Level Backend Developers are software engineers who specialize in developing and maintaining the server-side logic, databases, and APIs that power web and mobile applications. They usually have a few years of professional experience and are proficient in programming languages like Java, Python, Node.js, or Ruby. These developers are responsible for ensuring that data flows efficiently between the server and users, optimizing performance, and collaborating with front-end developers and other team members. Their role often includes troubleshooting server issues, writing automated tests, and implementing security best practices.

What is the difference between Mid Level Backend Developer vs Junior Backend Developer?

AspectMid Level Backend DeveloperJunior Backend Developer
Experience2-4 years0-2 years
SkillsProficient in backend frameworks, databases, API developmentBasic understanding of backend concepts, learning frameworks
ResponsibilitiesDeveloping features, troubleshooting, code reviewsAssisting in tasks, learning codebase, bug fixing
Work EnvironmentCollaborates with teams, independent problem-solving

The main difference between a Mid Level Backend Developer and a Junior Backend Developer lies in experience and skill level. Mid level developers have more hands-on experience, handle complex tasks independently, and contribute significantly to project development. Junior developers are still learning, focusing on foundational tasks and gaining industry knowledge. This distinction helps employers identify the right candidate for different stages of project involvement.

What are the key skills and qualifications needed to thrive as a Mid Level Backend Developer, and why are they important?

To thrive as a Mid Level Backend Developer, you need strong programming skills in languages like Java, Python, or Node.js, a solid understanding of server-side logic, and experience with relational and non-relational databases. Familiarity with frameworks (such as Spring or Express), RESTful API development, version control systems (like Git), and containerization tools (like Docker) is typically required. Effective problem-solving, collaboration, and clear communication are standout soft skills for this role. These abilities are crucial for building reliable, scalable backend systems and working efficiently within development teams.
What are the most commonly searched types of Backend Developer jobs in Toronto, ON? The most popular types of Backend Developer jobs in Toronto, ON are:
Mid Level Backend Developer jobs near you
Sr Backend Developer

Sr Backend Developer

Hays

Toronto, ON • On-site

CA$90 - CA$100/hr

Other

Posted 13 days ago

Job description

Role: Senior Backend Developer

Length: 1 year contract (strong potential for extension)

Rate: $90-$100/hr INC

Location: Downtown Toronto (1 day onsite)


Your New Company

Join a high-performing digital engineering team within a leading, enterprise-scale organization focused on building modern, scalable platforms. This team operates in a fast-paced environment, driving innovation through microservices and distributed architecture to support millions of users across digital products.


Your New Role

As a Senior Backend Developer, you will play a critical hands-on role in designing, building, and maintaining scalable backend systems and APIs. You will contribute directly to the development of microservices within a distributed architecture, while also supporting ongoing enhancements and maintenance of existing systems.

This is a highly technical, coding-heavy role requiring strong ownership and deep backend expertise.

Key Responsibilities:

  • Design, develop, and maintain scalable backend services using Java and Kotlin
  • Build and optimize APIs within a microservices architecture
  • Drive system design and contribute to architectural decisions across distributed systems
  • Write high-quality, production-ready code with strong testing practices
  • Maintain and enhance existing backend services and microservices
  • Work within event-driven architectures supporting real-time systems
  • Collaborate closely with cross-functional engineering teams


What You’ll Need to Succeed

  • 10+ years of backend development experience, with a strong focus on building scalable systems
  • Proven senior-level experience as a hands-on Backend Developer (not just design/lead)
  • Strong expertise in Java and Kotlin
  • Demonstrated experience building scalable APIs and distributed systems
  • Deep experience with microservices architecture
  • Strong hands-on experience with Spring / Spring Boot
  • Solid knowledge of SQL and relational databases
  • Experience working with event-driven architectures
  • Strong system design capabilities and ability to influence architecture
  • Experience with unit testing and development testing practices
  • Proven experience maintaining and evolving existing production microservices

Nice-to-Have:

  • Experience with Google Cloud Platform (GCP)


What You’ll Get in Return

  • Opportunity to work on large-scale, high-impact backend platforms
  • Exposure to modern engineering practices across distributed systems
  • A highly collaborative, engineering-driven team environment
  • Competitive compensation aligned to senior-level market rates
  • Flexible hybrid working model


What You Need to Do Now

If you’re a true senior-level backend developer with strong expertise in Java, Kotlin, and microservices, apply directly or reach out for a confidential discussion.

Apply