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Senior Ruby On Rails Developer Jobs in Ontario (NOW HIRING)

Fullscript

Staff, Security Engineer

Toronto, ON · Remote

... senior technical leader and hands-on builder. This role is ideal for someone who started their ... Experience securing Ruby on Rails, Node.js, JavaScript, GraphQL, or similar application ecosystems.

Clio

Software Developer, Mobile

Toronto, ON · Remote

CA$129K - CA$149K/yr

Summary: We are currently seeking a Software Developer, Mobile to join our rapidly growing ... Ruby on Rails * The ability to learn new technologies quickly and work effectively in an ever ...

Human Agency

Senior Full-Stack Engineer

Toronto, ON · On-site

Proficiency in Python and Ruby on Rails , with significant backend experience. * Experience in ... Experience in DevOps, CI/CD pipelines, and secure release management. * Background in security ...

Fullscript

Staff, Security Engineer

Ottawa, ON · Remote

... senior technical leader and hands-on builder. This role is ideal for someone who started their ... Experience securing Ruby on Rails, Node.js, JavaScript, GraphQL, or similar application ecosystems.

RailPros

Job Summary: As Senior Rail Engineer you will play a crucial role in leading the design and ... RailPros is known for working on innovative and challenging engineering projects within the rail ...

RailPros

Job Summary: As Senior Rail Engineer you will play a crucial role in leading the design and ... RailPros is known for working on innovative and challenging engineering projects within the rail ...

Fullscript

Cloud Security Engineer

Toronto, ON · Remote

CA$100K - CA$110K/yr

Experience integrating security tooling into CI/CD pipelines and developer workflows without ... Experience securing Ruby on Rails, JavaScript, TypeScript, GraphQL, containerized workloads, or ...

Fullscript

Cloud Security Engineer

Ottawa, ON · Remote

CA$100K - CA$110K/yr

Experience integrating security tooling into CI/CD pipelines and developer workflows without ... Experience securing Ruby on Rails, JavaScript, TypeScript, GraphQL, containerized workloads, or ...

The Citco Group Limited

Risk Associate

Toronto, ON

CA$85K - CA$105K/yr

... a senior or mentoring role * Strong knowledge of financial products, Market risk metrics (Greeks ... The Risk services offered include Exposure and RoR and IRR performance reports, Scenario, Stress ...

Clio

ML Platform Engineer

Toronto, ON

CA$152K - CA$174K/yr

We are currently seeking a ML Platform Engineer to join our Engineering team. This role is ... Solid Python or Ruby on Rails development skills, with experience building production-grade ...

Fintros

React Developer

Toronto, ON · On-site

Jest) * Back-End: GraphQL (Ruby), Rails API (testing: rSpec) * ML: Python, Flask * Documentation ... Sketch, Figma, Adobe Suite Apply to join a team of senior developers that take pride in shipping ...

Clio

Software Development Manager

Toronto, ON · Hybrid

CA$220K - CA$264K/yr

We are currently seeking a Software Development Manager to join our Engineering team. This role is ... Experience with Ruby on Rails or Python This posting is for an existing vacancy. What you will find ...

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All JobsSenior Ruby On Rails Developer JobsSenior Ruby On Rails Developer Jobs in Ontario

Senior Ruby On Rails Developer information

See Ontario salary details

$64.5K

$128.1K

$180K

How much do senior ruby on rails developer jobs pay per year?

As of Jun 28, 2026, the average yearly pay for senior ruby on rails developer in Ontario is $128,147.00, according to ZipRecruiter salary data. Most workers in this role earn between $104,000.00 and $154,000.00 per year, depending on experience, location, and employer.

What is a Senior Ruby On Rails Developer job?

A Senior Ruby on Rails Developer is an experienced software engineer specializing in building, maintaining, and optimizing web applications using the Ruby on Rails framework. They are responsible for writing clean, efficient code, designing application architecture, and ensuring performance and scalability. Senior developers also mentor junior team members, collaborate with cross-functional teams, and implement best practices in development, testing, and deployment. Their role often includes problem-solving, debugging complex issues, and staying updated with the latest industry trends.

What are the key skills and qualifications needed to thrive in the Senior Ruby On Rails Developer position, and why are they important?

To thrive as a Senior Ruby On Rails Developer, you need deep expertise in Ruby, Rails frameworks, object-oriented programming, and web application architecture, often supported by a bachelor's degree in computer science or related experience. Familiarity with development tools such as Git, PostgreSQL, Docker, RSpec, and cloud platforms, as well as relevant certifications, can enhance your effectiveness. Exceptional problem-solving, leadership, and communication skills help you mentor team members and coordinate with stakeholders. These competencies are critical to creating robust, scalable applications and contributing to both technical excellence and team success.

What are typical daily responsibilities for a Senior Ruby On Rails Developer?

As a Senior Ruby On Rails Developer, your day-to-day tasks typically include designing and developing new features, maintaining and optimizing existing codebases, conducting code reviews, and integrating third-party APIs. You will often collaborate closely with product managers, UI/UX designers, and other engineers to ensure smooth project delivery and uphold best practices within the team. Additionally, you may mentor junior developers, troubleshoot complex technical issues, and contribute to architectural decisions. This multifaceted role offers both technical challenge and the opportunity to drive meaningful impact within your organization.

What are the most commonly searched types of Ruby On Rails Developer jobs in Ontario? The most popular types of Ruby On Rails Developer jobs in Ontario are:
What are popular job titles related to Senior Ruby On Rails Developer jobs in Ontario? For Senior Ruby On Rails Developer jobs in Ontario, the most frequently searched job titles are:
What job categories do people searching Senior Ruby On Rails Developer jobs in Ontario look for? The top searched job categories for Senior Ruby On Rails Developer jobs in Ontario are:
What are popular job titles related to Senior Ruby On Rails Developer jobs in ON? For Senior Ruby On Rails Developer jobs in ON, the most frequently searched job titles are:
Senior Ruby On Rails Developer jobs near you
Infographic showing various Senior Ruby On Rails Developer job openings in Ontario as of June 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $128,147 per year, or $61.6 per hour.

Staff, Security Engineer

Fullscript

Toronto, ON • Remote

Full-time

Medical, Retirement, PTO

Posted 23 days ago

Job description

About Fullscript

We're an industry-leading health technology company on a mission to help people get better. We started in 2011 with one simple idea. Make it easier for practitioners to access the products they trust so they can deliver better care.

That simple idea grew into a platform that powers every part of care. Today, more than 125,000 practitioners use Fullscript for clinical insights, lab interpretations, patient analytics, education, and access to high-quality supplements. Over 10 million patients rely on Fullscript to stay connected to their care plans and follow through on treatment.

We build tools that make care smarter and more human. Tools that save time, simplify decisions, and help practitioners stay closely connected to the people they care for. When everything they need is in one place, they can focus on what matters most: helping people get better.

This is your invitation.

Bring your ideas, your grit, and your care for people.
Join us and shape the future of care.
The Opportunity

We're looking for a Staff Security Engineer to join Fullscript's Security Engineering team as a senior technical leader and hands-on builder. This role is ideal for someone who started their career in software engineering and developed deep expertise in security engineering, application security, or product security.

You'll work closely with engineering teams to design and implement security solutions that scale across Fullscript's products and platforms. As a Staff-level engineer, you'll own complex technical initiatives, help shape security strategy, and influence how security is built into the software development lifecycle. You'll be expected to balance hands-on execution with technical leadership, mentoring engineers and helping teams solve security challenges in a way that supports both business objectives and engineering velocity.

We're looking for someone who has owned systems end-to-end; from application development and infrastructure decisions through security design and implementation; Understands how to build secure, scalable solutions in production environments. The ideal candidate is deeply technical, highly collaborative, and energized by solving difficult problems that span multiple teams, systems, and domains.

What you'll do
  • Lead the design and implementation of security solutions across Fullscript's applications, platforms, and AI-powered systems.
  • Partner with engineering teams to embed security throughout the software development lifecycle, including architecture reviews, threat modeling, secure coding practices, and design reviews.
  • Drive application security, product security, and vulnerability management initiatives from concept through implementation.
  • Own complex security challenges that span multiple teams, balancing technical requirements, business priorities, and engineering constraints to deliver scalable solutions.
  • Mentor engineers and security practitioners, raising the bar for secure software development and helping teams make sound security decisions.
  • Influence technical strategy and security standards through hands-on engineering, technical leadership, and cross-functional collaboration.
  • Stay ahead of emerging threats, security technologies, and AI-specific risks to help shape Fullscript's long-term security posture.
What you bring to the table
  • 8+ years of software engineering experience designing, building, and operating production systems.
  • 3+ years of recent experience in application security, product security, security engineering, or a related security discipline.
  • Deep understanding of secure software development, modern application architectures, APIs, and cloud-native environments.
  • Experience owning complex technical initiatives from problem definition through delivery, including working across multiple teams and stakeholders.
  • Proven ability to influence technical direction, mentor engineers, and drive adoption of security best practices.
  • Strong hands-on experience with security tooling, automation, vulnerability management, and security assessments.
  • Excellent communication skills, strong technical judgment, and a continuous learning mindset.
Bonus if you have
  • Experience securing Ruby on Rails, Node.js, JavaScript, GraphQL, or similar application ecosystems.
  • Experience with AWS cloud security and cloud-native security controls.
  • Experience with threat modeling methodologies such as STRIDE, PASTA, or similar frameworks.
  • Experience with vulnerability management, application security posture management, or developer security tooling.
  • Familiarity with GitHub, GitLab, Wiz, static analysis tools, secret scanning, or related security platforms.
  • Experience conducting penetration testing, security research, or ethical hacking activities.
  • Experience protecting healthcare, regulated, or sensitive customer data.
What we can offer you
  • Remote-first flexibility to work where you work best, with North America (Ottawa, Toronto, or Calgary) preferred for this role.
  • Flexible PTO and competitive pay, because work-life balance matters
  • RRSP/401k match and stock options to invest in your future
  • Premium benefits package with customizable coverage, paramedical services, and an HSA.
  • Fullscript discounts to save on high-quality wellness products
  • Continuous learning opportunities to grow your skills and career

Fullscript shares salary ranges to support transparency and help candidates make informed decisions. The range shown reflects base salary only and does not include stock options, wellness stipends, or other benefits that are part of Fullscript's total rewards package.

Final compensation depends on experience, skills, and location. We review pay regularly to stay aligned with market data and internal equity. Benefits and total rewards may vary by region.

Why Fullscript

Great work happens when people feel supported, trusted, and inspired. At Fullscript, we stay curious and keep finding smarter ways to make care better. We grow together, take on new challenges, and focus on impact. We put people first, work as a team, and leave egos at the door.

What to Know Before You Apply

We're grateful for the interest in joining Fullscript. To make sure your application reaches our hiring team, please apply directly through our careers page.

A quick note: Due to the high volume of applications, we're not able to respond to phone or email inquiries about application status. If there's a match, our team will reach out directly.

Fullscript is an equal opportunity employer committed to creating an inclusive workplace. Accommodations are available upon request at [email protected].

All offers are contingent on successful background checks conducted in compliance with federal, state, and provincial laws.

We use AI tools to support parts of the hiring process, including screening and reviewing responses. Final hiring decisions are always made by people and follow all applicable privacy and employment laws in Canada and the U.S.

Learn More
www.fullscript.com
@fullscriptHQ on instagram
@fullscript on YouTube
FullScript on LinkedIn
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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