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Senior Python Developer Jobs in Ontario (NOW HIRING)

Design, develop, and maintain code using Java and Python programming languages. * Participate in code reviews and advocate for high-quality coding standards. Mandatory Skills * 10+ years in Java ...

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He/She will have the opportunity to work with various stakeholders (senior level, and subject ... Experience with DevOps and continuous delivery and deployment methodologies based off bitbucket ...

This mid-senior level position requires a blend of backend and frontend development skills. We are ... your extensive programming knowledge in Java and Python to drive key projects in the financial ...

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Bachelor's or Master's degree in Computer Science, Engineering, or a related technical field ... Back‑End : * Strong proficiency in C# (.NET Core) and intermediate knowledge of Python.

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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 ...

... Senior Software Developer to join a Data Services team focused on delivering core record- and ... This role combines hands-on backend engineering (Python, serverless, microservices, APIs, AWS) with ...

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 ...

You will work with Senior Engineers to build and deploy production grade AI systems end to end. Is ... Expert‑level proficiency in Python, SQL and cloud infrastructure * Hands‑on experience ...

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Senior Python Developer information

What are the main responsibilities of a Senior Python Developer?

A Senior Python Developer is responsible for designing, developing, and maintaining complex software applications using the Python programming language. They lead the technical aspects of projects, mentor junior developers, and ensure code quality through code reviews and best practices. Additionally, they collaborate with cross-functional teams to gather requirements, solve technical challenges, and deploy scalable and efficient solutions. Senior Python Developers are also expected to stay updated with the latest trends and advancements in Python and related technologies.

What is the difference between Senior Python Developer vs Python Developer?

AspectSenior Python DeveloperPython Developer
Required ExperienceTypically 5+ years, with leadership and complex project experienceUsually 1-3 years, focusing on core Python skills
ResponsibilitiesDesigning architecture, mentoring, handling complex systemsWriting code, debugging, implementing features
CertificationsOptional but beneficial (e.g., Python certifications, cloud certs)Often not required
Work EnvironmentCollaborative teams, project planning, code reviewsDevelopment-focused, task-oriented

The main difference between a Senior Python Developer and a Python Developer lies in experience, responsibilities, and leadership. Senior developers handle complex projects, mentor others, and often participate in architecture decisions, while Python Developers focus on coding and feature implementation. Both roles are essential in tech companies, but the senior role requires more experience and broader skills.

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

To thrive as a Senior Python Developer, you need advanced proficiency in Python programming, experience with software architecture, and a solid understanding of algorithms and data structures, usually backed by a degree in computer science or related fields. Familiarity with frameworks like Django or Flask, version control systems such as Git, and containerization tools like Docker are typically required, alongside knowledge of modern CI/CD pipelines. Strong problem-solving abilities, effective communication, and leadership skills help you collaborate with teams and mentor junior developers. Mastery of these skills ensures the delivery of scalable, maintainable software solutions and the ability to drive technical excellence within development teams.

What are some common challenges faced by Senior Python Developers when leading a development team?

Senior Python Developers often encounter challenges such as balancing hands-on coding with mentoring junior team members and ensuring code quality across the team. They are also responsible for making architectural decisions, which requires staying updated on best practices and emerging Python frameworks. Additionally, coordinating collaboration between cross-functional teams (like DevOps, QA, and front-end developers) can be complex, especially in agile environments where requirements may shift rapidly. Overcoming these challenges helps foster a productive and innovative team culture.
What are the most commonly searched types of Python Developer jobs in Ontario? The most popular types of Python Developer jobs in Ontario are:
What are popular job titles related to Senior Python Developer jobs in Ontario? For Senior Python Developer jobs in Ontario, the most frequently searched job titles are:
What job categories do people searching Senior Python Developer jobs in Ontario look for? The top searched job categories for Senior Python Developer jobs in Ontario are:
What cities in Ontario are hiring for Senior Python Developer jobs? Cities in Ontario with the most Senior Python Developer job openings:
What are popular job titles related to Senior Python Developer jobs in ON? For Senior Python Developer jobs in ON, the most frequently searched job titles are:
Senior Full Stack Developer- Python and Vue.js (Global Security)

Senior Full Stack Developer- Python and Vue.js (Global Security)

Royal Bank of Canada

Toronto, ON • On-site

Full-time

Posted 5 days ago


Job description

Job Description

What is the opportunity?

The Security Insights & AI - Digital Development team is building production-grade applications within Global Cyber Security. Our team designs, architects, and builds bespoke solutions supporting threat hunting, cyber analytics, and security operations. As the Senior Full Stack Developer- Python and Vue.js (Global Security), you will be responsible for designing and implementing LLM-powered tools and platforms that serve multiple business units and use cases.

What will you do?

  • Build and maintain full-stack web applications that deliver security insights and LLM-powered solutions
  • Engineer high-quality integrated systems across multiple teams and stakeholder groups
  • Develop and own backend systems in Python that power scalable, production-grade applications
  • Contribute to frontend development using Vue.js and modern web technologies
  • Develop maintenance procedures to ensure optimal application performance and reliability
  • Integrate applications to various cloud-based platforms
  • Gather input from stakeholders to direct development and enhance product deliverables
  • Identify potential issues, conflicts, and risks while developing appropriate mitigations
  • Establish strong working relationships across business units and technical teams
  • Mentor junior engineers and contribute to architectural decisions

What do you need to succeed?

Must-have

  • 7+ years of experience developing and shipping code for production systems
  • Strong backend development skills in Python (Django, FastAPI)
  • Hands-on experience with web development (Typescript, Tailwind, NuxtJS) and modern frontend technologies (Vue.js, React)
  • Knowledgeable in building highly scalable, robust, and fault-tolerant applications
  • Entrepreneurial mindset with ability to work independently and drive solutions forward
  • Demonstrated ability to proactively gather requirements from stakeholders and translate them into technical solutions
  • Proven track record of delivering high-quality code while managing multiple concurrent projects and deadlines

Nice-to-have

  • Experience in cloud engineering and deployments (Openshift, Azure)
  • Azure EntraID or similar IAM integrations
  • Good understanding of SQL, NoSQL, Vector databases
  • Professional experience with LLMs, RAG, vector search, and agent orchestration frameworks

What's in it for you?

We thrive on the challenge to be our best, progressive thinking to keep growing, and working together to deliver trusted advice to help our clients thrive and communities prosper. We care about each other, reaching our potential, making a difference to our communities, and achieving success that is mutual.

  • A comprehensive Total Rewards Program including bonuses and flexible benefits, competitive compensation, commissions, and stock where applicable
  • Leaders who support your development through coaching and managing opportunities
  • Ability to make a difference and lasting impact
  • Work in a dynamic, collaborative, progressive, and high-performing team
  • Flexible work/life balance options
  • Opportunities to do challenging work
  • Opportunities to take on progressively greater accountabilities
  • Access to a variety of job opportunities across business

#LI-Post

#TechPJ

Job Skills

Active Learning, Agile Methodology, Application Integrations, Detail-Oriented, Emerging Technologies, Enterprise Application Delivery, Group Problem Solving, Programming Languages, Software Development Life Cycle (SDLC)

Additional Job Details

Address:

16 YORK ST:TORONTO

City:

Toronto

Country:

Canada

Work hours/week:

37.5

Employment Type:

Full time

Platform:

TECHNOLOGY AND OPERATIONS

Job Type:

Regular

Pay Type:

Salaried

Posted Date:

2026-07-02

Application Deadline:

2026-08-07

Note: Applications will be accepted until 11:59 PM on the day prior to the application deadline date above

Our Employment Opportunities

At RBC, we are guided by living shared values of Client First, Integrity, Collaboration, Respect and Excellence and winning together as One RBC. We believe an inclusive workplace that has diverse perspectives is core to our continued growth as one of the largest and most successful banks in the world. Maintaining a workplace where our employees feel supported to perform at their best, effectively collaborate, drive innovation, and grow professionally helps to bring our Purpose to life and create value for our clients and communities. RBC strives to deliver this through policies and programs intended to foster a workplace based on respect, belonging and opportunity for all.

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RBC is presently inviting candidates to apply for this existing vacancy. Applying to this posting allows you to express your interest in this current career opportunity at RBC. Qualified applicants may be contacted to review their resume in more detail.

Employment Type: FULL_TIME