Senior Java Full Stack Developer

Job in Mississauga, Ontario, Canada

Listing for: Citi

Full Time position
Listed on 2026-10-22

Job specializations:

Software Development
Java Developer, Full Stack Developer, Backend Developer, React.js

Salary/Wage Range or Industry Benchmark: 171000 - 242000 CAD Yearly CAD 171000.00 242000.00 YEAR

Build scalable Java applications with ReactJS at Citi as a senior full-stack developer supporting the global OMC platform.

This senior Applications Development Technology Lead position expands and modernizes Citi’s client onboarding technology. You will design microservices, RESTful APIs, and reusable services while guiding developers and communicating with stakeholders. The work supports reliable, scalable, real-time solutions across global business operations.

Key Responsibilities:

Lead technical design, architecture, and complex application development
Develop high-performance microservices and RESTful APIs
Guide developers through mentoring, reviews, and constructive feedback
Create reusable components using Citi’s development practices
Support releases and evaluate concepts through Proof-of-Concepts

Requirements:

8+ years of hands-on Java development experience
Experience with Spring, messaging, and Java frameworks
Proficiency in ReactJS, JavaScript, Redux, HTML5, and CSS3
Experience with scalable microservices, APIs, RDBMS, and No

SQL
Bachelor’s degree or equivalent experience

Apply Java, ReactJS, architecture, and mentoring expertise to strengthen Citi’s real-time client onboarding platform.

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