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Intermediate Frontend Developer Jobs in Ontario (NOW HIRING)

Mentor junior and intermediate developers, fostering a culture of continuous learning and ... Strong proficiency in front-end frameworks such as React or Angular and Typescript. * Experience ...

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Mentor junior and intermediate developers, while promoting engineering best practices across the ... Frontend: React, TypeScript, React Router, React Query, Zustand, AgGrid, React Hook Form, Mantine

Mentor junior and intermediate developers, while promoting engineering best practices across the ... Frontend: Angular, Nodejs * Backend: C#, Node.js, Express, Java, REST APIs, WebSockets * Database:

... front-end planning, feasibility, and detailed engineering phases for multi-disciplinary projects ... engineers, intermediate engineers, designers, technicians and technologists Assist in the ...

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Intermediate Frontend Developer information

What is an intermediate frontend developer?

Intermediate Frontend Developers are professionals who build and maintain the user-facing parts of web applications, typically possessing a few years of experience beyond entry-level roles. They are proficient in core technologies like HTML, CSS, and JavaScript, and often work with frameworks such as React, Angular, or Vue.js. These developers are responsible for translating design mockups into interactive interfaces, optimizing application performance, and ensuring cross-browser compatibility. At the intermediate level, they are expected to contribute to code reviews, collaborate with backend developers, and solve more complex technical challenges compared to junior developers.

What are the key skills and qualifications needed to thrive as an intermediate frontend developer?

To thrive as an Intermediate Frontend Developer, you need solid proficiency in HTML, CSS, JavaScript, and modern frameworks such as React or Vue, typically supported by a degree in computer science or related experience. Familiarity with version control systems like Git, build tools (Webpack, npm), and understanding of responsive design are essential technical requirements. Strong problem-solving, attention to detail, and effective communication skills help you collaborate with teams and deliver high-quality user interfaces. These skills ensure that you can create efficient, maintainable, and user-friendly web applications that meet both user needs and business objectives.

What are the typical challenges an intermediate frontend developer faces when collaborating with backend teams?

Intermediate Frontend Developers often encounter challenges related to integrating frontend interfaces with backend APIs, such as handling inconsistent data structures or unclear API documentation. Clear and proactive communication with backend teams is essential to resolve these issues efficiently. Additionally, they may need to negotiate timelines or prioritize tasks to ensure smooth development cycles, all while maintaining high code quality and user experience standards.

What is the difference between Intermediate Frontend Developer vs Junior Frontend Developer?

AspectIntermediate Frontend DeveloperJunior Frontend Developer
Experience2-4 years of experience0-1 year of experience
SkillsProficient in HTML, CSS, JavaScript, frameworks like React or Angular, and basic version controlBasic understanding of HTML, CSS, JavaScript, and some frameworks
ResponsibilitiesDeveloping features, debugging, collaborating on projects, code reviewsAssisting in development, learning codebases, fixing minor bugs
Work EnvironmentIndependent task handling, team collaboration, project ownershipSupervised tasks, learning from senior developers, support roles

The main difference between an Intermediate Frontend Developer and a Junior Frontend Developer lies in experience, skill level, and responsibilities. Intermediate developers handle more complex tasks independently and contribute significantly to projects, while juniors focus on learning and supporting senior team members.

What are the most commonly searched types of Frontend Developer jobs in Ontario?

The most popular types of Frontend Developer jobs in Ontario are:

What job categories do people searching Intermediate Frontend Developer jobs in Ontario look for?

The top searched job categories for Intermediate Frontend Developer jobs in Ontario are:

What cities in Ontario are hiring for Intermediate Frontend Developer jobs?

Cities in Ontario with the most Intermediate Frontend Developer job openings:

Infographic showing various Intermediate Frontend Developer job openings in Ontario as of September 2026, with employment types broken down into 1% As Needed, 66% Full Time, 19% Part Time, 1% Temporary, 12% Contract, and 1% Nights. Highlights an 88% Physical, 3% Hybrid, and 9% Remote job distribution.

Backend Java Developer, Assistant Vice President

Mississauga, ON • On-site

Citi
Banking and Credit Intermediation • 5 - 10K employees

CA$94K - CA$141K/yr

Other

Re-posted 14 days ago


Citibank rating

8.4

Company rating: 8.4 out of 10

Based on 179 frontline employees who took The Breakroom Quiz


Job description

The Applications Development Senior Programmer Analyst is an intermediate level position responsible for participation in the establishment and implementation of new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to contribute to applications systems analysis and programming activities.

Responsibilities
  • Conduct tasks related to feasibility studies, time and cost estimates, IT planning, risk technology, applications development, model development, and establish and implement new or revised applications systems and programs to meet specific business needs or user areas
  • Monitor and control all phases of development process and analysis, design, construction, testing, and implementation as well as provide user and operational support on applications to business users
  • Utilize in-depth specialty knowledge of applications development to analyze complex problems/issues, provide evaluation of business process, system process, and industry standards, and make evaluative judgement
  • Recommend and develop security measures in post implementation analysis of business usage to ensure successful system design and functionality
  • Consult with users/clients and other technology groups on issues, recommend advanced programming solutions, and install and assist customer exposure systems
  • Ensure essential procedures are followed and help define operating standards and processes
  • Serve as advisor or coach to new or lower level analysts
  • Has the ability to operate with a limited level of direct supervision.
  • Can exercise independence of judgement and autonomy.
  • Acts as SME to senior stakeholders and /or other team members.
  • Appropriately assess risk when business decisions are made, demonstrating particular consideration for the firm's reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behavior, conduct and business practices, and escalating, managing and reporting control issues with transparency.
Required Technical Skills
  • Deep understanding of Core Java (Java 17/21), including modern features (Lambdas, Streams, Records, Pattern Matching), multi-threading, concurrency, and memory management.
  • Spring Ecosystem: Extensive hands‑on experience with Spring Boot, Spring Security, Spring Data JPA, and Spring Core.
  • Database Expertise: Strong proficiency in Oracle Database, including indexing strategies, query optimization, and performance tuning.
  • API Standards: Proven track record of designing and securing enterprise REST APIs.
  • DevOps & Cloud‑Native: Practical experience with Docker, OpenShift (or Kubernetes), and building/maintaining CI/CD pipelines.
  • Enterprise Integration: Familiarity with messaging/streaming platforms (e.g., Apache Kafka, IBM MQ) and microservices patterns (e.g., API Gateways, Circuit Breakers, Service Mesh).
  • Security Standards: Understanding of enterprise security controls, vulnerability scanning (e.g., Snyk, SonarQube), and secure coding practices.
  • Testing Frameworks: Strong commitment to quality with experience in JUnit, Mockito, and test‑driven development (TDD) practices.
Preferred / Plus Skills
  • AI Coding Experience: Experience using AI coding assistants (e.g., GitHub Copilot, Devin) to write, refactor, and document code is a strong plus.
  • Frontend Familiarity: Experience with modern frontend frameworks like React or Angular is highly desirable to facilitate full‑stack collaboration.
Recommended Qualifications
  • Education: Bachelor’s or Master’s degree in Computer Science, Information Technology, Engineering, or a related technical field.
  • Experience: 5–8+ years of professional software development experience, with a strong focus on backend Java development in an enterprise environment (financial services experience is a plus).
  • Leadership: Proven experience leading technical initiatives, designing system components, and mentoring other developers.
  • Soft Skills: Excellent analytical, problem‑solving, communication, and interpersonal skills. Ability to articulate complex technical concepts to both technical and non‑technical stakeholders.

This job description provides a high-level review of the types of work performed. Other job‑related duties may be assigned as required.

Time Type: Full time

Primary Location Full Time Salary Range: $94,300.00 - $141,500.00

Job Family Group: Technology

Job Family: Applications Development

Automated Processing and AIWe 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.

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.

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What Citibank employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom


Citigroup Inc logo

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