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Python React Developer Jobs in Ontario (NOW HIRING)

... Developer (Contract | Toronto | Hybrid) * Design and develop scalable backend services using Python ... Contribute to frontend development by building responsive dashboards and components using React ...

... Developer to join an experienced team of engineers and data analysts who are helping shape the ... Python 3, Mongo/NoSQL, Docker environment, microservices, React, React Native -Thoughtful problem ...

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Python React Developer information

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

To thrive as a Python React Developer, you need strong proficiency in Python for backend development and React.js for building dynamic user interfaces, often supported by a degree in computer science or related field. Familiarity with frameworks like Django or Flask, RESTful APIs, version control systems like Git, and modern JavaScript tools is essential, along with experience in cloud platforms or CI/CD pipelines. Excellent problem-solving, collaboration, and communication skills help you work effectively within development teams and translate client requirements into robust solutions. These skills ensure the delivery of high-quality, scalable applications that meet user needs and business objectives in a rapidly evolving tech landscape.

How do Python React Developers typically collaborate with backend and frontend teams on a project?

Python React Developers often act as a bridge between backend and frontend teams, leveraging their expertise in both domains. They work closely with backend developers to design and implement RESTful APIs or GraphQL endpoints in Python frameworks like Django or Flask, while also collaborating with frontend specialists to build seamless user interfaces in React. Regular stand-ups, code reviews, and shared documentation are common practices that ensure effective communication and alignment across the team. This collaborative environment helps deliver cohesive and scalable web applications.

What are Python React Developers?

Python React Developers are software engineers who specialize in building web applications using Python for backend development and React.js for frontend development. These professionals are skilled in creating robust server-side logic with Python frameworks like Django or Flask, while designing interactive and responsive user interfaces with React. Their combined expertise ensures seamless integration between the frontend and backend, resulting in efficient, scalable, and user-friendly applications.

What is the difference between Python React Developer vs JavaScript Front-End Developer?

AspectPython React DeveloperJavaScript Front-End Developer
Primary SkillsPython, React.js, HTML, CSSJavaScript, React.js, HTML, CSS
Work EnvironmentWeb development, full-stack projects, backend integrationClient-side UI/UX, interactive web interfaces
Common EmployersTech companies, startups, agenciesTech firms, digital agencies, freelancing

Both roles involve React.js and web development, but Python React Developers typically work on backend integration using Python frameworks like Django or Flask, while JavaScript Front-End Developers focus solely on client-side interfaces. The choice depends on whether the role emphasizes backend skills alongside React or is primarily front-end focused.

What are popular job titles related to Python React Developer jobs in Ontario? For Python React Developer jobs in Ontario, the most frequently searched job titles are:
What job categories do people searching Python React Developer jobs in Ontario look for? The top searched job categories for Python React Developer jobs in Ontario are:
Infographic showing various Python React Developer job openings in Ontario as of May 2026, with employment types broken down into 73% Full Time, 24% Part Time, and 3% Contract. Highlights an 88% Physical, 2% Hybrid, and 10% Remote job distribution.
Principal Software Engineer - Platform, Identity and BI

Principal Software Engineer - Platform, Identity and BI

Calabrio

Toronto, ON

Other

Posted 24 days ago


Job description

Are you driven by innovation and looking to thrive in a fast-paced, growing environment? Join us at Calabrio-Verint and be part of our dynamic team! Help us in reshaping the landscape of customer experience - where every interaction becomes an opportunity, and every insight drives meaningful change.

Calabrio-Verint are the trailblazers in customer experience intelligence! Revolutionizing the way organizations connect with their customers, we empower businesses to elevate every interaction to new heights. Our cutting-edge cloud platform, coupled with AI-driven analytics tools, unlocks the true essence of customer sentiment, turning data into actionable insights with lightning speed.

We are seeking a Principal Software Engineer to lead the architecture and development of on our Platform and Identity or Business Intelligence and data platform teams. This role requires deep expertise in AWS, full stack Java and Python development, data management, identity standards, and a proven track record of building enterprise-scale software as a service solutions. As a Principal Engineer, you will be a technical leader and strategic advisor, driving architectural decisions that impact millions of users globally.

**Candidate must be located in Ontario or British Columbia.*

What you'll be doing:

  • Architect and develop large-scale, mission-critical platform services for millions of users across the globe, leveraging AWS native technologies including Lambda, ECS/EKS, Athena, RDS, Redshift, Glue, and S3 using common Java and Python frameworks and libraries.
  • Build and maintain sophisticated back-end services and related front-end applications using Java, Python, React, and related modern web technologies.
  • Develop and maintain Identity and Platform related REST APIs with event-driven architectures to enable seamless integration between platform services, analytics tools, and customer-facing applications.
  • Lead the design and implementation of robust data pipelines, data lakes, and data warehouses using modern architectures (Iceberg, Parquet, columnar formats) to support real-time and batch analytics at scale.
  • Drive technical strategy and architectural decisions for the Platform, including query optimization, performance tuning, and cost optimization across AWS services.
  • Design and implement efficient data storage solutions across relational databases (SQL Server, Redshift, PostgreSQL) and non-relational databases (DynamoDB, S3), ensuring optimal performance and cost-efficiency.
  • Serve as the technical lead and mentor for engineering teams, conducting architecture reviews, code reviews, and providing guidance on complex technical challenges.
  • Collaborate with cross-functional teams including data engineers, analytics engineers, product managers, and DevOps to deliver innovative Platform, Identity and BI solutions that drive business value.
  • Champion engineering excellence by establishing best practices, design patterns, and coding standards for data-intensive applications.
  • Evaluate and integrate emerging AWS services and open-source technologies to continuously improve platform capabilities and developer productivity.
  • Troubleshoot and resolve complex performance issues in distributed data systems, optimizing query performance, data processing workflows, and infrastructure costs.
  • Participate in strategic planning and roadmap development, translating business requirements into scalable technical solutions.
  • Contribute to the team on-call rotation, providing expert-level support for production environments and mentoring team members on incident response.