Lead Java Full Stack Developer

Citi; Mississauga; On-site; CAD 90,000 - 120,000; Full time

Job summary

Citi is seeking a Lead Java Developer in Mississauga, Canada. The ideal candidate will have 6-10 years of experience in full-stack web development, strong backend skills in Java and Spring Boot, and solid front-end experience with Angular. The role involves developing web applications, building microservices, and designing RESTful APIs.

To excel, candidates should have a Bachelor's degree in Computer Science or a related field and experience with tools like Kendo UI, SQL Server, and Kafka. Join Citi's innovative team and contribute to transformative projects.

Qualifications

• 6-10 years of experience in full-stack web application development.
• Strong backend development experience with Java and Spring Boot.
• Strong front-end development experience with Angular.

Responsibilities

• Develop and maintain web applications across the stack.
• Build scalable, secure microservices using Java and Spring Boot.
• Design, build, document, and consume RESTful APIs.

Skills

Java

Spring Boot

Angular

SQL Server

Elasticsearch

Kafka

CI/CD

GitHub/Bitbucket

Education

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

Tools

Kendo UI

Docker

Kubernetes/OpenShift

Job description

Lead Java Developer

Job Description

Key Responsibilities

• Develop and maintain web applications across the stack: UI, APIs, and backend services.
• Build scalable, secure microservices using Java and Spring Boot.
• Develop responsive user interfaces using Angular, leveraging Kendo UI components where appropriate.
• Implement and support micro front-end patterns (composition, shared libraries, module federation or equivalent approaches).
• Design, build, document, and consume RESTful APIs; ensure service contracts and versioning strategies are followed.
• Work with SQL Server and optimize queries, indexes, and data access patterns.
• Implement search and indexing solutions with Elasticsearch.
• Build event-driven integrations using Kafka (producers/consumers, topics, schema/versioning awareness).
• Use GitHub / Bitbucket and contribute to automated CI/CD pipelines (build, test, deploy).
• Write unit and integration tests; participate in code reviews and engineering best-practice adoption.

Required Skills & Qualifications

• 6-10 years of experience in full-stack web application development.
• Strong backend development experience with Java and Spring Boot (REST APIs, security concepts, performance, and scalability).
• Strong front-end development experience with Angular including TypeScript, HTML5, and CSS.
• Experience using UI component libraries such as Kendo UI.
• Working knowledge of micro front-end architecture and patterns.
• Solid understanding of API design and microservices (service boundaries, resilience, observability basics).
• Hands‑on experience with SQL Server and relational data modeling.
• Experience with Elasticsearch and event streaming with Kafka.
• Proficiency with GitHub / Bitbucket workflows and practical experience with CI/CD pipelines.
• Strong communication skills, ownership mindset, and ability to work collaboratively in an agile team.

Preferred / Nice to Have

• Experience with cloud platforms (AWS, Azure, or GCP).
• Containerization and orchestration experience (Docker, Kubernetes/OpenShift).
• Experience with automated testing frameworks (unit, integration, and UI testing).
• Exposure to observability practices (logging, metrics, tracing) and production support.

Education

Bachelor’s degree in Computer Science, Software Engineering, or a related field (or equivalent practical experience.

Equal Employment Opportunity

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.