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Apps Developer Jobs in Ontario (NOW HIRING)

The Applications Development Intermediate Programmer Analyst is an intermediate level position responsible for participation in the establishment and implementation of new or revised application ...

The Applications Development Intermediate Programmer Analyst is an intermediate level position responsible for participation in the establishment and implementation of new or revised application ...

About the role We're looking for an AI Developer II to join our growing team! What you'll do here ... Experience with Microsoft Power Platform, including Power Automate and/or Power Apps. * Experience ...

About the role We're looking for an AI Developer II to join our growing team! What you'll do here ... Experience with Microsoft Power Platform, including Power Automate and/or Power Apps. * Experience ...

Work within a small team of developers to create and support production software for our clients\n ... At least 5 years' experience with JavaScript and single page JavaScript apps\n \n * Experience with ...

We are seeking an experienced Web Services & Application Developer with strong C#, ASP.NET, and SQL ... Knowledge of cloud platforms (Azure Web Apps, Azure API Management, Azure SQL) or C# unit testing ...

Lead the design and development of scalable solutions using Power Apps, Power Automate, and Power ... Background in Agile methodologies and DevOps practices. Experience with governance and compliance ...

Showing results 41-60

Apps Developer information

See Ontario salary details

$15

$54

$81

How much do apps developer jobs pay per hour?

As of Sep 10, 2026, the average hourly pay for apps developer in Ontario is $54.54, according to ZipRecruiter salary data. Most workers in this role earn between $43.03 and $65.14 per hour, depending on experience, location, and employer.

What is the difference between Apps Developer vs Mobile App Developer?

AspectApps DeveloperMobile App Developer
Required CredentialsBachelor's in Computer Science or related field; coding certificationsBachelor's in Computer Science or related field; coding certifications
Work EnvironmentDevelops applications for various platforms, including web and desktopFocuses on developing applications specifically for mobile devices (iOS, Android)
Employer & Industry UsageTech companies, startups, enterprise software firmsMobile technology companies, app development agencies, startups
Search & Comparison IntentOften compared for broader application development rolesSpecialized focus on mobile platforms

Apps Developers and Mobile App Developers share many skills and credentials, but their focus differs. Apps Developers work on a variety of applications across platforms, while Mobile App Developers specialize in creating apps for smartphones and tablets. Understanding these differences helps in choosing the right career path or job search focus.

Are app developers still in demand?

Yes, app developers are in high demand due to the continued growth of mobile device usage and digital services. Skills in programming languages like Swift and Kotlin, along with experience in app design and development, are valuable in the current job market. The demand is expected to remain strong as businesses expand their mobile presence.

How do you become an app developer?

To become an app developer, you typically need to learn programming languages such as Java, Swift, or Kotlin, and gain experience with mobile development frameworks and tools like Android Studio or Xcode. A bachelor's degree in computer science or a related field is common, along with building a portfolio of apps to demonstrate skills. Continuous learning and staying updated on industry trends are important for success in this role.

Is an apps developer a good career?

An apps developer is a viable career choice, as demand for mobile applications continues to grow across industries. Success typically requires skills in programming languages like Java or Swift, familiarity with development tools, and ongoing learning to keep up with technological advancements. The role offers opportunities for creativity, problem-solving, and competitive salaries depending on experience and location.

What does an apps developer do?

An apps developer designs, builds, tests, and maintains mobile or web applications using programming languages such as Java, Swift, or JavaScript. They collaborate with designers and stakeholders to create user-friendly software and often use development tools like IDEs and version control systems. Strong problem-solving skills and knowledge of app store submission processes are also important for this role.
Infographic showing various Apps Developer job openings in Ontario as of August 2026, with employment types broken down into 75% Full Time, 12% Part Time, and 13% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution, with an average salary of $113,452 per year, or $54.5 per hour.

Senior GUI developer - Equities Technology

Mississauga, ON • On-site

Citi
Banking and Credit Intermediation • 5 - 10K employees

CA$120K - CA$170K/yr

Full-time

Re-posted 15 days ago


Citibank rating

8.4

Company rating: 8.4 out of 10

Based on 179 frontline employees who took The Breakroom Quiz

39th of 176 rated banks


Job description

This role is for a Senior GUI developer in Citi Equities Technology. As a senior developer you will work together with front office, product development and members of development team to provide solutions that improve efficiency, decrease operational risk, and enable the business to expand. The candidate should possess strong analytical and technical ability with 6-10 years' experience in React, Redux, websockets and cutting-edge web technologies.

Candidate should be able to work independently as well as being a team player, with good communication skills and stake holder management. Responsibilities: Design, develop and maintain web apps using React and TypeScript, ensuring high quality, clean and maintainable code. Manage application state using redux and middleware such as redux toolkit.

Ensure high test coverage by writing unit tests using Vitest. Write and maintain a suite of reusable UI components which can be used across different feature apps. Contribute to the overall application architecture and provide inputs on front end frameworks, design patterns and best practices.

Perform code reviews and contribute to overall quality, maintainability and testability of software developed. Be a self-starter and plan/schedule own work for tasks and projects, implement functionality without direct supervision. Work closely with teams to form good working culture and continuously adapt to different working environment.

Requirements: Hands on HTML5, CSS3/SASS/CSS in JS, Core JavaScript, Typescript Hands on React, React hooks Unit Testing with Jest, React-testing-library Application State Management with Redux, Recoil, React Context Reactive Apps with RxJS, Web Sockets, Web workers Build Tools like Webpack/Vite etc Debugging skills, Code performance, Bench Marking Container based development like Electron RESTful APIs, JWT, NodeJS, Express JS Nice to have: Exposure to Bitbucket, Jenkins, Artifactory, Confluence MongoDB, AMPS Server - should be able to query Workspace tools - npm workspace, Micro Frontend, ESLint/TSLint Docker management, Openshift containers Experience working with other UI frameworks such as Angular Education: Bachelor's degree/University degree or equivalent experience This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required. ------------------------------------------------------ Job Family Group: Technology ------------------------------------------------------ Job Family: Applications Development ------------------------------------------------------ Time Type: Full time ------------------------------------------------------ Primary Location Full Time Salary Range: $120,800.00 - $170,800.00 ------------------------------------------------------ Most Relevant Skills Please see the requirements listed above

------------------------------------------------------ Other Relevant Skills For complementary skills, please see above and/or contact the recruiter. ------------------------------------------------------ Automated Processing and AI We use automated processing, including artificial intelligence, for our legitimate business interests (or our reasonable and appropriate business purposes) to identify and align the candidate's skills and abilities with a specific job opening. Additionally, if you so choose, or consent, we can match your skills and abilities to other suitable roles at Citi.

Importantly, all our hiring processes and decisions, including determining your suitability for a role, are conducted, checked, and decided by individuals. Our automated processing and AI do not involve relying on automatic or autonomous decision-making. Please refer to any Jurisdictional Considerations, with specific provisions for your country (where relevant) for further details.

------------------------------------------------------ This job opening is for an existing job vacancy. ------------------------------------------------------ Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law. If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi.

View Citi's EEO Policy Statement and the Know Your Rights poster.


What Citibank employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom


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About Citigroup Inc

Sourced by ZipRecruiter

We live in an increasingly complex world. Companies these days are either born global or are going global at record speed. Business and geopolitics are forging an entirely new dynamic and consumers now expect financial services to be a seamless part of their digital lives. Citi is a bank that’s uniquely positioned for this moment. Through our vast global network and our on-the-ground expertise, we can connect the dots, anticipate change and empathize the needs of our clients and customers in ways that other banks simply cannot. Citi's mission is to serve as a trusted partner to our clients by responsibly providing financial services that enable growth and economic progress. We have set expectations for how we must act to bring our mission to life. These expectations are at the heart of our Leadership Principles – we take ownership, we deliver with pride and we succeed together.

Industry

Banking and credit intermediation

Company size

5,001 - 10,000 Employees

Headquarters location

New York City, NY, US