Senior Front-End Engineer — .NET/C# (Hybrid, Toronto)

Citi; New York (NY); Hybrid; USD 94,000 - 142,000; Full time

Job summary

Citi’s Markets Technology division seeks a Senior Front-end Developer to own the UI for a trade processing application, spanning .NET/C# backend with modern React front-ends. The role requires 5+ years of front-end experience, strong HTML5/CSS3/JS, and collaboration with cross-functional teams; hybrid work in Toronto; prior financial services exposure is a plus.

Bring expertise to design scalable, compliant UI solutions and mentor junior staff while maintaining Citi’s security and quality

Qualifications

• 5+ years in UI or full-stack dev with front-end focus
• Proficiency in .NET/C#, enterprise-grade apps
• Strong React experience; HTML5, CSS3, JS

Responsibilities

• Design and deliver front-end web applications for trade processing platform
• Own UI development lifecycle from requirements to deployment
• Migrate legacy Citi UI components to React HTML5 interfaces
• Ensure automated testing and adherence to design standards
• Monitor and control all phases of development process
• Analyze technology problems and provide recommendations
• Collaborate with business users and cross-functional teams
• Mentor junior analysts and enforce coding standards
• Ensure compliance with Citi policies and security measures

Skills

Front-end development

UI development

.NET/C#

React

HTML5

CSS3

JavaScript

TypeScript

Automated testing

REST APIs

Financial services experience

Education

Bachelor's degree in Computer Science, Engineering, or related field

Tools

Angular

REST APIs

JSON/XML

Job description

Citi’s Markets Technology division seeks a Senior Front-end Developer to own the UI for a trade processing application, spanning .NET/C# backend with modern React front-ends. The role requires 5+ years of front-end experience, strong HTML5/CSS3/JS, and collaboration with cross-functional teams; hybrid work in Toronto; prior financial services exposure is a plus.

Bring expertise to design scalable, compliant UI solutions and mentor junior staff while maintaining Citi’s security and quality