**About the Role**
The
**Java Backend Engineer**
is an intermediate level position responsible for participation in the establishment and implementation of current or revised application systems and programs in coordination with the Technology team.

The overall objective of this role is to contribute to applications systems analysis and programming activities.

We are seeking a highly skilled Java Developer with strong expertise in building scalable, secure, and high‑performance backend systems.

You will work closely with architects, leads, Dev

Ops, QA, and business teams to deliver modern microservices‑based solutions using Java, Spring Boot, Kafka, containers, and multiple databases.
**Key Responsibilities**
Design, develop, and maintain
**Java/Spring Boot applications**
and
**RESTful microservices** .

Build scalable backend components with strong focus on performance, reliability, and clean architecture.

Develop and optimize
**APIs** , backend logic, and integrations with internal/external systems.

Work with
**Oracle, MongoDB, MSSQL**
databases;
Containerize and deploy applications using
**Docker**
and
**Kubernetes** .

Write clean, testable, well‑documented code and perform
**code reviews**
to maintain coding standards.

Develop automated unit/integration tests using
**JUnit**
and REST testing frameworks.

Troubleshoot and resolve issues across development, testing, and production environments.

Collaborate with cross‑functional teams and participate in Agile ceremonies throughout the SDLC.

Continuously improve application performance, development processes, and automation maturity.
**Qualifications:**
5+ years relevant experience in Design, development, testing and deployment of high quality code
3+ years' experience and expertise in
**Core Java**
(Java 8+), OOPs, collections, concurrency, and multithreading.
3+ years of hands‑on experience with
**Spring Boot** ,



REST services, microservices architecture.
3+ years' experience with Database skills:
**Oracle** ,
**MongoDB** ,
**MSSQL**
Good to have Messaging systems:
**Kafka**
(producers, consumers, topics, streaming).

Experience with
**Docker** ,
**Kubernetes** , and containerized deployments.

Strong knowledge of
**JSON, XML** , serialization, annotations, caching, and distributed computing concepts.

Experience with
**Git/Bitbucket/Git

Hub** , Maven/Gradle, CI/CD pipelines.
**Education:**
Bachelor's degree/University degree in Computer Engineering, Computer Science, Information systems or equivalent experience
This job description provides a high-level review of the types of work performed.

Other job-related duties may be assigned as required.
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**Job Family Group:**
Technology
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**Job Family:**
Applications Development
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**Time Type:**
Full time
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**Primary Location Full Time Salary Range:**
$94,300.00 - $141,500.00
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**Most Relevant Skills**
Please see the requirements listed above.
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**Other Relevant Skills**
Back-End Development, Java, Spring Boot, Structured Query Language (SQL).
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**Automated Processing and AI**
We use automated processing, including artificial intelligence, for our legitimate business interests (or our reasonable and appropriate business purposes) to identify and align the candidate's skills and abilities with a specific job opening.

Additionally, if you so choose, or consent, we can match your skills and abilities to other suitable roles at Citi.

Importantly, all our hiring processes and decisions, including determining your suitability for a role, are conducted, checked, and decided by individuals.

Our automated processing and AI do not involve relying on automatic or autonomous decision-making.

Please refer to any Jurisdictional Considerations, with specific provisions for your country (where relevant) for further details.
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_This job opening is for an existing job vacancy._
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_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 (https://www.citigroup.com/citi/accessibility/application-accessibility.htm)_
_._
_View Citi's_
_EEO Policy Statement (https://www.citigroup.com/global/eeo-aa-policy)_
_and the_
_Know Your Rights (https://www.eeoc.gov/sites/default/files/2023-06/22-088_EEOC_Know

Your

Rights6.12Screen

Rdr.pdf)_
_poster._
Citi is an equal opportunity and affirmative action employer.

Minority/Female/Veteran/Individuals with Disabilities/Sexual Orientation/Gender Identity.

📌 Java Backend Engineer (Mississauga)
🏢 Citigroup
📍 Mississauga