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Junior Python Backend Developer Jobs in Ontario (NOW HIRING)

Sangoma

Senior Backend Developer

Ottawa, ON · Remote

CA$120K - CA$135K/yr

Mentor and guide junior developers, fostering a culture of learning and growth within the team. Requirements * 5+ years of professional experience as a backend developer. * Experience using Git and ...

Sangoma

Senior Backend Developer

Toronto, ON · Remote

CA$120K - CA$135K/yr

Mentor and guide junior developers, fostering a culture of learning and growth within the team. Requirements * 5+ years of professional experience as a backend developer. * Experience using Git and ...

Localcoin

Java Backend Developer

Etobicoke, ON · Hybrid

CA$100K - CA$135K/yr

As a Java Back-End Developer at Localcoin, you will be responsible for developing and maintaining ... Guide and mentor junior developers, fostering a culture of learning, best practices, and technical ...

ShyftLabs

Senior Backend Developer

Toronto, ON · Hybrid

CA$100K - CA$140K/yr

The ideal candidate combines strong backend and frontend engineering skills with experience in ... Drive development across teams for services built in Node.js, TypeScript, JavaScript, and Python

CIBC

Sr. Consultant, Back End Developer

Toronto, ON · Hybrid

Support and mentor junior designers and developers through knowledge sharing, collaboration and ... in Python, Django, Flask, Fast API, Pandas, Numpy, SQL, HTML, CSS, JavaScript. Eagerness to ...

Releady

Senior Backend Engineer (SQL/Python)

Toronto, ON · On-site +1

CA$135/hr

OVERVIEW We are seeking a Senior Backend Engineer with strong expertise in Python and API development to design and build scalable, data-driven backend systems. This role focuses on developing secure ...

Releady

Senior Backend Engineer (SQL/Python)

Toronto, ON · On-site +1

CA$135/hr

OVERVIEW We are seeking a Senior Backend Engineer with strong expertise in Python and API development to design and build scalable, data-driven backend systems. This role focuses on developing secure ...

StackandCo

Python Developer

Galway, NY

... the backend systems, including the core functionality, databases and APIs. \n \n \n \n \n \n As ... junior\-senior applicants and for the right senior, there may be the opportunity to progress to ...

Atyeti Inc

Sr Python Developer

Toronto, ON

Work with cloud platforms (e.g., AWS, Azure, GCP) to deploy and manage backend services. * Optimize ... Perform code reviews and mentor junior developers. * Integrate with third-party APIs and external ...

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Junior Python Backend Developer information

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

To thrive as a Junior Python Backend Developer, you need proficiency in Python programming, understanding of backend frameworks like Django or Flask, and a solid grasp of databases and RESTful API design, typically supported by a relevant degree or coding bootcamp experience. Familiarity with version control systems like Git, cloud platforms, and containerization tools such as Docker is often expected. Strong problem-solving skills, eagerness to learn, and effective teamwork make someone stand out in this role. These skills and qualities are crucial for building reliable backend systems, collaborating with teams, and adapting to evolving technical requirements.

What types of projects and tasks can a Junior Python Backend Developer expect to work on during their first year?

As a Junior Python Backend Developer, you can expect to work on tasks such as building and maintaining RESTful APIs, writing automated tests, fixing bugs, and contributing to database design. You'll likely start with smaller components or features, collaborating closely with senior developers and front-end teams to ensure smooth data flow and application performance. Over time, you'll gain exposure to code reviews, deployment processes, and may gradually take on more complex assignments as you build your expertise and confidence.

What does a Junior Python Backend Developer do?

A Junior Python Backend Developer is responsible for writing server-side logic using the Python programming language. They work on building, maintaining, and optimizing the backend of web applications, often collaborating with frontend developers and other team members. Their daily tasks may include developing APIs, managing databases, debugging code, and ensuring the application runs smoothly and efficiently. As junior developers, they are also expected to learn best practices, follow coding standards, and continuously improve their skills.
What are the most commonly searched types of Python Backend Developer jobs in Ontario? The most popular types of Python Backend Developer jobs in Ontario are:
Junior Python Backend Developer jobs near you
Infographic showing various Junior Python Backend Developer job openings in Ontario as of May 2026, with employment types broken down into 66% Full Time, 21% Part Time, and 13% Contract. Highlights an 85% Physical, 1% Hybrid, and 14% Remote job distribution.

AWS Backend Developer

Lioness Strategic Solutions

Toronto, ON • Hybrid

Full-time

Posted 8 days ago

Job description

Position Title: AWS Backend Developer
Location: Toronto, ON (Hybrid – 2–3 days onsite per week; mandatory Tuesday & Thursday)
Duration: ASAP – November, 2026
Hours: 7.5 hours/day

Position Overview

We are seeking a Senior AWS Backend Developer to design, build, and support scalable, secure, and cloud-native backend services. This is a hands-on role with strong ownership across architecture, development, deployment, and production support within a modern AWS environment.

Key Responsibilities
  • Develop and maintain scalable backend services using Node.js and Python
  • Build and support RESTful APIs and AWS-based microservices
  • Design and implement serverless and event-driven architectures
  • Integrate AWS services including Lambda, API Gateway, DynamoDB, RDS, S3, SQS, SNS, and Step Functions
  • Write clean, efficient, and well-tested code following engineering best practices
  • Troubleshoot, debug, and resolve production issues
  • Contribute to CI/CD pipelines, deployments, and automated testing
  • Monitor and support applications using AWS observability tools
  • Participate in code reviews and collaborate with cross-functional teams
Required Qualifications
  • Bachelor’s degree in Computer Science or equivalent experience
  • 7+ years of backend or cloud development experience
  • Strong hands-on experience with AWS services, including:
    • Lambda, API Gateway
    • RDS, DynamoDB, S3
    • SQS, SNS, Step Functions
    • ECS / ECR
  • Proficiency in Node.js
  • Experience with microservices, serverless, and event-driven architectures
  • Experience with CI/CD pipelines and DevOps practices
  • Strong understanding of cloud security, scalability, and reliability principles
Preferred Qualifications
  • Experience with Infrastructure as Code (AWS CDK – TypeScript or Terraform)
  • Experience developing backend services using Python or Java
  • Experience with AWS observability tools (e.g., CloudWatch, OpenSearch)
  • Strong solution design experience in complex or enterprise environments
Nice to Have
  • Experience with frontend technologies such as React or Next.js
  • Experience with data integration tools (e.g., AWS Glue)
  • Exposure to SaaS/PaaS platforms
  • Experience working in regulated or enterprise environments (e.g., financial services)
Key Skills
  • AWS cloud development
  • Backend engineering (Node.js, Python)
  • Microservices & serverless architecture
  • API development
  • DevOps & CI/CD
  • Cloud security and scalability
  • Production support and troubleshooting
Note

AI tools may be utilized during the screening and evaluation process to obtain basic candidate information, detect plagiarism, identify inconsistencies such as false employment history or references, categorize skills, and perform an initial match against the job requirements.