Senior Full Stack Java Developer, Citi

Citi

Location:
Canada, Mississauga

Category:
IT - Software Development

Contract Type:
Employment contract

Salary:

Not provided

Save Job

Apply Position

Job Description:

Citi Commercial Bank (CCB) seeks a Senior Full Stack Java Developer to develop backend and front-end applications. The role focuses on building microservices-based systems, securing distributed environments, and ensuring reliability and performance.

Job Responsibility:

Building and supporting the banking applications
Diagnosing and resolving issues in distributed environments
Developing Java-based backend systems and integrating APIs
Ensuring application scalability, high availability, and performance.

Requirements:

Strong Core Java and functional programming experience
Understanding of concurrent and parallel programming, including threads, processes, synchronization, and handling race conditions
Knowledge of reactive programming for building asynchronous, event/message-driven systems in microservices based applications that are highly concurrent
Proficient in containerizing applications, continuous integration, and continuous delivery in Java ecosystem
Knowledge of distributed tracing and API Gateway integration for microservices architecture
Proficient in functional programming concepts with Streams API, Lambda Expressions and Optional
Understanding of secure coding practices, SSL/TLS, OAuth, and JWT token handling in Java-based applications
Expertise in integrating Java with NoSQL databases such as MongoDB for scalable, high availability applications
Strong experience in data modeling and experience with relational and no-SQL database, Oracle and MongoDB
Understanding of integrating APIs with third party libraries/vendors and handle the security around it
Understanding of the principles of distributed systems, including data partitioning, replication, and consistency models
Strong grasp of data structures and algorithms, especially those relevant to distributed systems like distributed hash tables and load balancing techniques
Understanding of microservices architecture, including service discovery, API gateways, and inter-service communication
Exceptional Problem-Solving and Analytical Skills to diagnose and resolve issues in distributed environments
Above average skills in monitoring, logging, and debugging distributed systems to ensure reliability and performance
Expertise in fundamental concepts such as consistency, availability, partition tolerance, fault tolerance, and scalability
Familiarity with container orchestration (e.g., Kubernetes), and distributed messaging systems (e.g., Kafka)
Experience using Git/BitBucket
Good communication skills, both written and verbal.

Nice to have:

Unix shell scripting
Knowledge of ElasticSearch, and GraphQL
Experience with building apps which are highly performant and scalable
Knowledge of Generating Artificial Intelligence (AI), Machine Learning (ML), and Large Language Models (LLMs).

Additional Information:

Job Posted:
July 26, 2025

Employment Type:

Fulltime

Work Type:

Hybrid work

View All Jobs In This Company

Job Link Share:

Senior Full Stack Java Developer