Backend Java API Developer Job at Citi (Mississauga)

Intern Java Backend Developer

Are you passionate about backend development and eager to gain hands-on experien...

Location

Poland , Warszawa

Salary:

Not provided

Circle K

Expiration Date

Until further notice

Requirements

Understanding of Java programming fundamentals
Understanding of basic OOP principles
Basic understanding of algorithms and data structures
Basic understanding of SQL and database management
Basic understanding of RESTful APIs
Familiarity with Git
Exposure to testing frameworks
Exposure to frameworks like Spring or Hibernate (optional)
Willingness to learn with open mindset
Good communication skills and open for other people

Job Responsibility

Assist in developing and maintaining RESTful APIs using Java and Spring Boot for eMobility services
Work with databases (PostgreSQL, MySQL) to store and process EV charging and mobility data
Write clean code and follow best practices and participate in code reviews
Collaborate with senior developers to debug, optimize, and enhance backend services
Participate in Agile development processes, including daily stand-ups and code reviews

What we offer

Hands-on experience with modern backend technologies in the eMobility market
Hands-on experience with SCRUM and SAFe
Exposure to industry-leading EV charging and smart mobility projects
Mentorship from experienced developers and domain experts
Potential for a full-time offer upon completion of the internship

Fulltime

Java Backend Developer

We are seeking an experienced Java Developer with expertise in frontend and back...

Location

India , Bangalore

Salary:

Not provided

Hewlett Packard Enterprise

Expiration Date

Until further notice

Requirements

Strong proficiency in Java and JSP for backend development
Expertise in JavaScript, HTML, CSS for frontend development
Experience with REST API development and integration
Working knowledge of MVC frameworks
Experience with Liferay framework
Ability to configure and customize Liferay components

Job Responsibility

Develop, implement, and maintain web applications using Java, JSP, JavaScript, HTML, and CSS
Design and develop RESTful APIs to integrate frontend applications with backend services
Collaborate with Cross-Functional teams to define, design, and ship new features
Create and maintain technical documentation
Debug and resolve technical issues, ensuring high performance and responsiveness
Customize and configure Liferay components to meet project needs
Work on optimizing application performance and ensuring scalability

What we offer

Health & Wellbeing
Personal & Professional Development
Unconditional Inclusion

Fulltime

Senior Backend Java Developer

This role involves building and supporting critical banking applications. As an ...

Location

Canada , Mississauga

Salary:

94300.00 - 141500.00 USD / Year

Citi

Expiration Date

Until further notice

Requirements

5-8 years experience in a Software Development role focusing on Java/Spring/Spring Boot development for Backend applications
Experience in developing low latency and high throughput APIs using Java, Spring and Spring Boot
Strong Core Java and functional programming experience
Strong experience in data modeling and experience with relational and NoSQL databases, specifically Oracle and MongoDB
Responsible for server-side design & development
Development of common, reusable components and services
Experience using Git/BitBucket
Good communication skills, both written and verbal
Good troubleshooting skills
Bachelor's degree/University degree or equivalent experience

Job Responsibility

Resolve high-impact problems/projects through in-depth evaluation of complex business processes, system processes, and industry standards
Apply advanced knowledge of applications programming and ensure application design adheres to the overall architecture blueprint
Utilize advanced knowledge of system flow and contribute to developing standards for coding, testing, debugging, and implementation
Develop comprehensive knowledge of how areas of business integrate to accomplish business goals
Provide in-depth analysis with interpretive thinking to define issues and develop innovative solutions
Contribute to mentoring junior developers and analysts
Assess risk and ensure compliance with applicable laws, rules, and regulations

What we offer

Global benefits designed to support well-being, growth and work-life balance

Fulltime

Senior Backend Java Developer

Capstone IT is seeking a Senior Java Backend Developer with deep expertise in en...

Location

United States , Glen Allen, VA

Salary:

72.00 - 83.00 USD / Hour

Capstone IT Staffing

Expiration Date

Until further notice

Requirements

Minimum 10 years of experience with a heavy focus on backend development, database connectivity, and containerization
Java (versions 8-17)
Spring Boot (Spring Data, Spring Cloud)
Hibernate (JPA, HQL, JPQL, Criteria, tuning, troubleshooting)
Web Services (SOAP and REST APIs)
Strong familiarity Kafka, MongoDB, and distributed systems concepts
Strong experience with Oracle/SQL Server and database connectivity
Experience with WebLogic, JUnit/Mockito, Git, Gradle/Ant, IntelliJ/Eclipse
Azure DevOps- used for project and backlog tracking
Bachelor’s degree in computer science or similar field

Job Responsibility

Develop clean, efficient, testable backend code
Enhance and maintain data access layers and system performance
Contribute to design discussions and modernization initiatives
Work independently with proactive problem-solving
Clear written and verbal communication
Adapts quickly and works independently

Fulltime

Sr Java Backend Developer

Location

United States , St. Louis

Salary:

Not provided

Enormous Enterprise

Expiration Date

Until further notice

Requirements

Strong Java developer with very good understanding of micro services
Grasp of software engineering skills in modular design, data structures, algorithms
Deep knowledge and hands on experience with modern applications like spring boot, Angular
Experience building and operating critical production systems
Solid understanding of modern API design and Restful principles
Fluent with git (preferred) or other SCM system
Write well designed and testable code
Strong Experience in automation and build tools like Maven, Ant and Gradle
Bachelor's degree in computer science engineering or a related discipline, or equivalent work experience
Experience in software development design and implementation of large scale distributed systems and web services building complex software that is testable and designed for extensibility

Fulltime

Lead Backend Java Developer

The Applications Development Technology Lead Analyst is a senior level position ...

Location

Canada , Mississauga

Salary:

Not provided

Citi

Expiration Date

Until further notice

Requirements

6-10 years of relevant experience in Apps Development or systems analysis role
Extensive experience system analysis and in programming of software applications
Experience in managing and implementing successful projects
Subject Matter Expert (SME) in at least one area of Applications Development
Ability to adjust priorities quickly as circumstances dictate
Demonstrated leadership and project management skills
Consistently demonstrates clear and concise written and verbal communication
Excellent Core Java, Spring Framework and functional programming hands-on experience
Proficient in functional programming concepts with Streams API, Lambda Expressions and Optional
Strong Experience with relational databases such as Oracle

Job Responsibility

Partner with multiple management teams to ensure appropriate integration of functions to meet goals as well as identify and define necessary system enhancements to deploy new products and process improvements
Resolve variety of high impact problems/projects through in-depth evaluation of complex business processes, system processes, and industry standards
Provide expertise in area and advanced knowledge of applications programming and ensure application design adheres to the overall architecture blueprint
Utilize advanced knowledge of system flow and develop standards for coding, testing, debugging, and implementation
Develop comprehensive knowledge of how areas of business, such as architecture and infrastructure, integrate to accomplish business goals
Provide in-depth analysis with interpretive thinking to define issues and develop innovative solutions
Serve as advisor or coach to mid-level developers and analysts, allocating work as necessary
Appropriately assess risk when business decisions are made, demonstrating particular consideration for the firm's reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behavior, conduct and business practices, and escalating, managing and reporting control issues with transparency

Fulltime

Backend Java Developer

Location

United States , Princeton

Salary:

Not provided

Best High Technologies

Expiration Date

Until further notice

Requirements

Bachelor of Science degree in Electrical Engineering
3 months experience

Job Responsibility

Develop, test, manage and support CL3n, RAROC and CHET Application
remediate application security vulnerabilities and upgrade application to a higher and newer version
Debug and test codes using Postman for RESTful methods
Use JBoss-eap-6.4 and 7.1 as deployment server, Jenkins for continuous integration and delivery
Use Git, BitBucket and Nexus Repository for version control
Remediate library security vulnerabilities for several Commercial Lending CL3n APIs
Use Sonatype and Veracode for detecting and testing vulnerabilities during building and compiling period
Disable HTTPs transaction protocol using TLS1 and SSL
Make sure the Transport Layer Security version is 1.2 so that the CL3n APIs can work perfectly and safely with Salesforce developing platform
Support AMCB Maestro Release Team, Salesforce nCino developing team for application technique problems related to CL3n APIs side

Java Backend Lead Developer

Java & Database Lead Developer is a senior level position responsible for establ...

Location

India , Pune

Salary:

Not provided

Citi

Expiration Date

Until further notice

Requirements

6 years of programming experience in Java, Python, Spark, Scala
4 years of strong handson experience in RDMS Database SQL (Oracle/Sybase) queries, PL/SQL, and advanced tuning techniques and Database upgrade/migration approaches
2 years of experience with Messaging (e.g., Kafka, Tibco, Rabbit (MQ))
Experience in Middleware (Tomcat and WebSphere) and Cloud Containerization (ECS) and CICD tools
Angular, ExtJS, JMS, JSON, XML, ROD, LightSpeed
Experience in Spring Batch, Spring Boot, Microservices and event-based architecture, Consuming REST API experience
Experience of collaboration tools (source control) like GIT/BitBucket/GitHub Copilot, and tools like JIRA etc
Experience in Unix (Linux) commands and scripting
Experience in data analysis, data modeling and SQL performance tuning, exception handling

Job Responsibility

Partner with multiple management teams to ensure appropriate integration of functions to meet goals as well as identify and define necessary system enhancements to deploy new products and process improvements
Resolve variety of high impact problems/projects through in-depth evaluation of complex business processes, system processes, and industry standards
Provide expertise in area and advanced knowledge of applications programming and ensure application design adheres to the overall architecture blueprint
Utilize advanced knowledge of system flow and develop standards for coding, testing, debugging, and implementation
Develop comprehensive knowledge of how areas of business, such as architecture and infrastructure, integrate to accomplish business goals
Provide in-depth analysis with interpretive thinking to define issues and develop innovative solutions
Serve as advisor or coach to mid-level developers and analysts, allocating work as necessary
Appropriately assess risk when business decisions are made, demonstrating particular consideration for the firm's reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behavior, conduct, and business practices, and escalating, managing, and reporting control issues with transparency

What we offer

Global benefits
Equal opportunity employer policies
Accessibility accommodations

Fulltime

Backend Java API Developer

Citi

Location:
Canada , Mississauga

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Additional Information:

Job Posted:
April 11, 2026

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Job Posted:
April 11, 2026