Senior Java Full-Stack Tech Lead & Architect

Citigroup Inc.; Mississauga; On-site; CAD 168,000 - 238,000; Full time

Job summary

Citigroup Inc. is seeking a senior Applications Development Technology Lead Analyst in Mississauga to drive design and development of complex applications.

The role emphasizes leading a team, ensuring architectural integrity, and delivering high-performance, scalable software across Java back-end and React front-end stacks. The candidate will mentor developers, ensure adherence to coding standards, and coordinate with business units to implement system enhancements while managing risk and

Qualifications

• 8+ years of hands-on Java development experience.
• Proven experience developing and maintaining highly scalable, real-time microservices and RESTful APIs.
• Proficiency in ReactJS and core front-end technologies: HTML5, CSS3, JavaScript (ES6+).

Responsibilities

• Lead the technical design, architecture, and development of complex applications.
• Guide and mentor a team of developers, conducting code reviews and feedback.
• Communicate project status to technical and non-technical stakeholders, including senior management.
• Develop reusable components and services following Citi’s best practices.
• Design and develop high-performance, low-latency applications within Citi frameworks.

Skills

Java development

Team leadership

Software architecture

Education

Bachelor’s degree/University degree or equivalent experience

Tools

Spring

Kafka

RabbitMQ

Solace

Tibco

ReactJS

HTML5/CSS3/JS

Oracle

MongoDB

RESTful APIs

Job description

Citigroup Inc. is seeking a senior Applications Development Technology Lead Analyst in Mississauga to drive design and development of complex applications.

The role emphasizes leading a team, ensuring architectural integrity, and delivering high-performance, scalable software across Java back-end and React front-end stacks. The candidate will mentor developers, ensure adherence to coding standards, and coordinate with business units to implement system enhancements while managing risk and