Posted 15 days ago
Javascript Developer
@ Kelly
Toronto, Ontario
Overview
Kelly is hiring a Senior React / JavaScript Developer on a contract basis in Toronto, ON, with 3 days onsite per week. The role builds and modernizes UI components and services for the Unified Fixed Income Trade Processing (FITP) platform, and includes mentoring mid-level developers.
Responsibilities:
- Design, develop and maintain scalable, testable applications
- Build and enhance UI components with React, JavaScript, HTML5 and Node.js
- Improve performance, reliability and testability
- Contribute to CI/CD automation and architecture
- Mentor mid-level developers
Requirements summary:
- 8+ years of application development experience
- Strong JavaScript, React, HTML5 and Node.js expertise
- Experience in large-scale collaborative environments
- Strong analytical, communication and leadership skills
- Bachelor's degree or equivalent experience required
Tools & skills
Source and dates
Source type not verified · apify-linkedin
- Employer posting date
- 2026-10-26
- First seen by our source
- 2026-11-11
- Source record updated
- 2026-11-11
These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.
Job details
| Seniority | Senior |
| Department | Software development |
| Experience | 8+ years |
| Travel | air: none · ground: none |
| Work setting | Office |
| Position | Mostly sitting |
| Physical demands | physical low · computer high |
| Languages | English |
| Education | Bachelor’s degree (required), Master’s degree (preferred) |
Summary and details written by AI from the posting; the employer’s posting is the authority.
Kelly
| Field | Value |
|---|---|
| Open jobs on Jobsy | 11 |
Job Title: Senior React / JavaScript Developer
Location: Toronto, ON (3 days onsite per week)
Hiring Event: November 18–19
Role Overview: Seeking an Engineer to join its Unified Fixed Income Trade Processing (FITP) team. FITP is a global trading platform supporting derivatives, cash, exotics, and securities financing products, serving 3,800+ users and processing approximately 200,000 transactions daily. The role focuses on building scalable, high-performance UI applications, modernizing services, and enabling automated CI/CD pipelines.
Key Responsibilities
- Design, develop, and maintain robust, scalable, and testable applications.
- Build and enhance UI components using React, JavaScript, HTML5, and Node.js.
- Collaborate with cross-functional teams to deliver new products, system enhancements, and process improvements.
- Improve application performance, reliability, scalability, and testability.
- Contribute to service modernization, CI/CD automation, and overall application architecture.
- Establish coding, testing, debugging, and implementation standards.
- Analyze complex technical and business problems and develop innovative solutions.
- Mentor mid-level developers and ensure compliance with risk, security, and regulatory standards.
Required Skills & Qualifications
- 8+ years of application development experience.
- Strong expertise in JavaScript, React, HTML5, and Node.js.
- Solid understanding of web development, system design, application performance, and testing.
- Experience working in large-scale, collaborative development environments.
- Strong analytical, problem-solving, communication, and leadership skills.
- Ability to manage priorities and drive technical improvements.
Nice to Have: Fixed Income domain knowledge, C#, and .NET Framework.
Education: Bachelor’s degree or equivalent experience required; Master’s degree preferred.
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