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Python Startup Jobs in Ontario (NOW HIRING)

Passage

Director of Data

Toronto, ON · On-site

Proficiency in Python for data processing and analysis * Experience working directly with business ... Ability to operate independently in a startup environment where systems are still being built Nice ...

Slice

Staff Software Developer, Services

Ottawa, ON · Remote

... startup environment where your decisions drive real impact. * Proven builder: You have solid experience crafting scalable backend systems in Python (Flask) and working with databases and cloud ...

Loop

Head of Risk

Toronto, ON · On-site

$120 - $140/hr

Loop is a fast‑growing FinTech high‑growth startup that enables businesses to seamlessly manage ... Comfort with SQL, Python, or no‑code automation tools (Claude, Zapier, Retool, etc.

Passage

Senior Marketing Engineer

Toronto, ON · On-site

CA$100K - CA$150K/yr

Python (stdlib-first) · Meta Marketing API · Google Ads API / GAQL · Google Search Console · ... Early-startup experience owning a function solo. What success looks like in the first six months

Capital One

Senior Manager, Data Science

Toronto, ON · On-site

When we launched as a startup we disrupted the credit card industry by individually personalizing ... data analysis (Python, Scala, or Java) * At least 7 years of experience with version control ...

Proof

Senior Full-Stack Developer (Canada)

Ottawa, ON · Remote

CA$135K - CA$165K/yr

About the Role Proof is a fast-growing startup at the forefront of legal technology, offering a ... Proven experience with Go (Golang) or other modern programming languages (e.g., Node.js, Python ...

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All JobsPython Startup JobsPython Startup Jobs in Ontario

Python Startup information

See Ontario salary details

$24.5K

$109.8K

$189.5K

How much do python startup jobs pay per year?

As of Aug 22, 2026, the average yearly pay for python startup in Ontario is $109,848.00, according to ZipRecruiter salary data. Most workers in this role earn between $65,000.00 and $145,500.00 per year, depending on experience, location, and employer.

What is a Python startup?

A Python Startup job typically involves working at an early-stage company that heavily relies on Python for its backend, data processing, or automation tasks. Employees in these roles often wear multiple hats, contributing to software development, system architecture, and sometimes even business strategy. Since startups operate in fast-paced environments, Python developers are expected to be adaptable, work with minimal supervision, and rapidly prototype solutions. The role may include working with frameworks like Django or Flask, handling data pipelines, or integrating AI/ML models. It’s a great opportunity for those who thrive in dynamic settings and want to have a significant impact on a company’s growth.

What does a typical workday look like at a Python startup?

At a Python startup, your typical workday often involves collaborating in small, agile teams to design, develop, and iterate on software products using Python. You may participate in daily standup meetings, contribute code, review pull requests, and troubleshoot issues in real-time as features evolve quickly. The environment is usually dynamic, with responsibilities extending beyond core coding to include brainstorming product ideas, testing, and even engaging with customers. This level of variety and collaboration enables you to expand your skill set rapidly and have a direct impact on the startup’s success.

What are the key skills and qualifications needed to thrive in the Python startup position, and why are they important?

To thrive at a Python startup, you need proficiency in Python programming, software development fundamentals, and familiarity with agile methodologies, often supported by a background in computer science or related fields. Experience with frameworks such as Django or Flask, cloud platforms, and knowledge of version control systems like Git are commonly expected, while certifications like AWS Certified Developer can be a plus. Strong problem-solving abilities, adaptability, and effective communication are critical soft skills in this fast-paced environment. These qualities enable rapid product iteration, seamless collaboration, and the ability to thrive amid the dynamic challenges faced by early-stage technology companies.

What are popular job titles related to Python Startup jobs in Ontario?

For Python Startup jobs in Ontario, the most frequently searched job titles are:

What job categories do people searching Python Startup jobs in Ontario look for?

The top searched job categories for Python Startup jobs in Ontario are:

Python Startup jobs near you
Infographic showing various Python Startup job openings in Ontario as of August 2026, with employment types broken down into 1% Internship, 79% Full Time, 15% Part Time, and 5% Contract. Highlights an 76% Physical, 7% Hybrid, and 17% Remote job distribution, with an average salary of $109,848 per year, or $52.8 per hour.

Senior Backend Engineer (Online Security)

US Mobile

Toronto, ON • Remote

CA$130K - CA$190K/yr

Full-time

Medical

Re-posted 2 days ago

Job description

US Mobile is on a mission to revolutionize connectivity. Imagine a world where you can go into a single app and buy terabytes of data for every one of your devices: phone, smart devices, car, home broadband, and more. That's the future that US Mobile is building: a software platform built truly for the 21st century and the age of 5G and IoT, with world class engineering, best-in-class user experience, and features that will define the next generation of connectivity. 

At the core of it all, we have a team and culture that has been recognized by Forbes as one of the top 500 best startup employers in the US. Our team spans diverse backgrounds, cultures, and stories, with employees coming from 20+ countries.

We're a venture-backed company entering hypergrowth, having recently ranked 94th on Inc 5000's fastest-growing private companies in America, and we're looking for someone exceptional to join our team.

We're looking for a skilled and motivated Senior Backend Engineer to help us scale connectivity to millions of devices, while keeping that platform secure from the ground up. In this role, you'll design, develop, and maintain scalable backend services and APIs that power our products, with deep ownership over online security: protecting devices and networks, hardening authentication and access controls, and building systems that detect and respond to threats in real time.

You'll work in a collaborative, agile environment and contribute to mission-critical systems that millions of users depend on every day.

Key Responsibilities:
  • Develop and maintain RESTful APIs using Java (Spring Boot or related web frameworks) or Python (Flask, Django)
  • Design and implement asynchronous service communication using RabbitMQ or AWS SQS/SNS
  • Work with NoSQL databases like MongoDB for data modeling and storage
  • Collaborate with Product, QA, and DevOps teams to deliver reliable and scalable features
  • Write clean, testable, and well-documented code with unit and integration tests
  • Participate in system architecture design, code reviews, and performance tuning
Qualifications:
  • Develop and maintain RESTful APIs using Java (Spring Boot or related web frameworks) or Python (Flask, Django)
  • Design and implement asynchronous service communication using RabbitMQ or AWS SQS/SNS
  • Work with NoSQL databases like MongoDB for data modeling and storage
  • Collaborate with Product, QA, and DevOps teams to deliver reliable and scalable features
  • Write clean, testable, and well-documented code with comprehensive unit and integration tests
  • Participate in system architecture design, code reviews, and performance tuning
Nice to Haves:
  • 7+ years of experience with Java and Spring Boot
  • Strong experience within Online Security, including:
    • Protecting internet-connected devices, networks, and personal data from digital threats
    • Authentication and Access management
    • Software Protection
    • Network Security
    • Threat Detection
  • Strong experience building and consuming REST APIs at scale
  • Hands-on experience with message brokers such as RabbitMQ or AWS SQS/SNS
  • Familiarity with MongoDB or other NoSQL database technologies
  • Solid understanding of Git, CI/CD workflows, and agile development practices
  • Excellent debugging, problem-solving, and communication skills
  • Strong team collaboration instincts, you make the people around you better
Benefits:
  • Competitive salary (varies based on location)
  • Flexible working hours
  • Gym reimbursement ($100/mo)
  • Supplemental health insurance
  • Professional development stipend
  • $500 CAD wfh tech set-up reimbursement
$130,000 - $190,000 a year
Think you'd be a great fit? Apply to learn more!
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
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