Toronto, On Senior software developer (full stack javascript) Jobs – 82 Openings This Week

Senior Full Stack Software Engineer – Acquisitions and Activation (Auth0)
Okta —Toronto, ON
- $136,000–$187,000 a year
- On call
- Hybrid work
- Data analysis skills
- JavaScript
Quick apply
Senior Developer (Full-stack)
Petal —Toronto, ON
- Full-time
- Remote
- Azure
- Databases
- AWS
- Flexible schedule
Quick apply
5h
Senior Automation Developer
Citi —Mississauga, ON
- $94,300–$141,500 a year
- Full-time
- Hybrid work
- Computer Science
- Engineering
- Java
Senior Full-Stack Developer (Ruby on Rails/React)
Phoenix —Toronto, ON
- $125,000–$155,000 a year
- Full-time
- AWS
- JavaScript
- In-person
- Paid time off
Senior, Cloud Engineering
Scotiabank —Toronto, ON
- Azure
- Computer Science
- Engineering
- Tuition reimbursement
6d
Senior AI Engineer, (Global Security)
Royal Bank of Canada —Toronto, ON
- Full-time
- Azure
- Research
- Databases
7d
Staff/Senior Backend Engineer (Node.js)
Mimica —Toronto, ON
- Full-time
- Remote
- English
- Databases
- Analysis skills
- Paid time off
- Flexible schedule
1d
Senior Software Engineer
GFL Environmental —Vaughan, ON
- DevOps
- Databases
- AWS
Senior Java Lead Software Engineer
Citi —Mississauga, ON
- $120,800–$170,800 a year
- Full-time
- Hybrid work
- Management
- Computer Science
- Engineering
Senior Platform Engineer, Vice President
State Street —Toronto, ON
- Full-time
- Hybrid work
- Azure
- Management
- DevOps
8d
AI Application Development Engineer (Intern-Friendly/Junior/Senior)
Queen's Elite Academy —Markham, ON
- From $25 an hour
- Part-time
- Hybrid work
- Computer science
- Computer Science
- Engineering
Quick apply
1d
Applications Development Sr Programmer Analyst Assistant Vice President
Citi —Mississauga, ON
- $94,300–$141,500 a year
- Full-time
- Hybrid work
- Oracle
- Java
- Databases
Senior Full Stack Developer
Konrad —Toronto, ON
- $120,000–$145,000 a year
- Hybrid work
- Azure
- AWS
- JavaScript
- Work from home
- Flexible schedule
Quick apply
Senior Software Engineer, Content Cards
Braze —Toronto, ON
- $153,815–$308,400 a year
- System design
- JavaScript
- Organizational skills
- Dental care
- Paid time off
Quick apply

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AI Application Development Engineer (Intern-Friendly/Junior/Senior)
Queen's Elite Academy —Markham, ON
*Education:* Currently pursuing or recently completed a degree in Computer Science, Software Engineering, Information Engineering, or a related field; strong…
From $25 an hour
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1d

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senior software developer (full stack javascript) jobs near toronto, on

Senior Full Stack Software Engineer – Acquisitions and Activation (Auth0)

Okta -
Toronto, ON

Quick apply

Job details

$136,000–$187,000 a year

Qualifications

Node.js
React
Full-stack development
Data analysis skills
JavaScript
CompTIA Network+
A/B testing

Full job description

Secure Every Identity, from AI to Human

Identity is the key to unlocking the potential of AI. Okta secures AI by building the trusted, neutral infrastructure that enables organizations to safely embrace this new era. This work requires a relentless drive to solve complex challenges with real-world stakes. We are looking for builders and owners who operate with speed and urgency and execute with excellence.

This is an opportunity to do career-defining work. We're all in on this mission. If you are too, let's talk.

Auth0 is growing rapidly and looking for exceptional new team members to help take us to the next level. One team, one score.

We never compromise on identity. You should never compromise yours either. We want you to bring your whole self to Auth0. If you're passionate, practice radical transparency to build trust and respect, and thrive when you're collaborating, experimenting and learning – this may be your ideal work environment. We are looking for team members that want to help us build upon what we have accomplished so far and make it better every day. N+1 > N.

About the Team

Here at Auth0 we're focused on securing the world's identities so innovators can innovate. We're currently hiring a senior Full Stack Software Engineer to join our Acquisitions and Activation Team.

This team owns the crucial first impressions of the Auth0 ecosystem. We apply rigorous, data-driven experimentation and A/B testing to optimize the entire early customer journey—from the moment a developer signs up, to the precise second they hit their "ah-ha" moment.

We bridge the gap between deep technical infrastructure and user psychology, building primarily on a JavaScript ecosystem (Node.js and React). If you are a full-stack engineer who loves blending robust software architecture with rapid, metrics-driven experimentation, this is the team for you.

What You Will Do

Optimize the Acquisition Funnel: Own, build, and continuously scale the entire signup experience to reduce friction, increase conversion, and showcase product value upfront.
Supercharge Activation: Build and refine full-stack features using React and Node.js for in-product onboarding guides and dashboard workflows that help new users integrate successfully and seamlessly.
Expand the Entry Ecosystem: Develop and maintain the portal and entry points for third-party platform integrations, ensuring a critical touchpoint for early customer success.
Scale our Experimentation Engine: Contribute to and utilize our internal A/B testing framework to run rapid, reliable experiments across early customer touchpoints.
Collaborate Across the Stack: Work closely with Product, Design, and Data Analytics to turn user behavioral insights into high-performing, production-ready full-stack features.
Maintain Excellence: Architect, maintain, and debug features across the full technical stack, participating in the team's on-call rotation to ensure a reliable and secure production environment.

Who You Are

You care deeply about developer experience (DX), application performance, and creating frictionless onboarding flows.
You are a seasoned Full Stack Engineer with deep production experience in JavaScript, Node.js, and React, moving fluidly between building intuitive frontend interfaces and designing robust backend services.
You have a strong preference for data-driven development, ideally with prior experience in A/B testing or data analysis to help interpret experiment results and user behavior.
You enjoy a fast-paced, iterative loop of shipping, measuring, learning, and pivoting based on concrete data.

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The Okta Experience

Supporting Your Well-Being
Driving Social Impact
Developing Talent and Fostering Connection + Community

We are intentional about connection. Our global community, spanning over 20 offices worldwide, is united by a drive to innovate. Your journey begins with an immersive, in-person onboarding experience designed to accelerate your impact and connect you to our mission and team from day one.

Okta is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, ancestry, marital status, age, physical or mental disability, or status as a protected veteran. We also consider for employment qualified applicants with arrest and convictions records, consistent with applicable laws.

If reasonable accommodation is needed to complete any part of the job application, interview process, or onboarding please use this Form to request an accommodation.

Notice for New York City Applicants & Employees: Okta may use Automated Employment Decision Tools (AEDT), as defined by New York City Local Law 144, that use artificial intelligence, machine learning, or other automated processes to assist in our recruitment and hiring process. In accordance with NYC Local Law 144, if you are an applicant or employee residing in New York City, please click here to view our full NYC AEDT Notice.

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senior software developer (full stack javascript) jobs in toronto, on

Senior Full Stack Software Engineer – Acquisitions and Activation (Auth0)

Senior Developer (Full-stack)

Senior Automation Developer

Senior Full-Stack Developer (Ruby on Rails/React)

Senior, Cloud Engineering

Senior AI Engineer, (Global Security)

Staff/Senior Backend Engineer (Node.js)

Senior Software Engineer

Senior Java Lead Software Engineer

Senior Platform Engineer, Vice President

AI Application Development Engineer (Intern-Friendly/Junior/Senior)

Applications Development Sr Programmer Analyst Assistant Vice President

Senior Full Stack Developer

Senior Software Engineer, Content Cards

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