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Added 6 days ago
RT
Senior Software Engineer
Russell Tobin
Toronto, ON
- $80 to $85 CAD / hour
- Contract
Minimum 7 years of software development and enterprise application delivery experience (Java/React)
Added 6 days ago
B
Senior Integration Specialist
Bevertec
Toronto, ON
- Contract
Added 6 days ago
P
Intermediate Software Engineer
PointClickCare
Mississauga, ON
- $112,000 to $125,000 CAD / year
- Full-time
Experience writing clean code that performs well at scale using Java
Added 6 days ago
KR
Java Developer
KTek Resourcing
Toronto, ON
- Full-time
We are looking for a Java Developer with strong experience in Java 17, Spring Boot, Spring WebFlux, microservices, REST APIs, IBM MQ, and Apache Kafka. The role involves developing…
Added 6 days ago
SI
Staff Backend Engineer (Payments and Billing)
Scribd, Inc.
Toronto, ON · Vancouver, BC
- Full-time
Has strong coding ability in at least one modern backend language such as Ruby (preferred), Java, Go, or Python, with a focus on clean, maintainable, and secure code.
Added 6 days ago
FT
Senior Associate -Cyber Security Forward Deployed(Bilingual FR/EN)
FDE Times
Toronto, ON
- Full-time
…zero-trust networking. AppSec: Secure SDLC, SAST/DAST/SCA, API security, threat modeling, secure code review, secrets management, supply-chain…
Added 6 days ago
PG
Quality Engineer – AI Chatbot Validation
Pacer Group
Toronto, ON
- $40 to $45 CAD / hour
- Contract
Strong programming skills in Java, Python, Groovy, or equivalent languages, with 5+ years of hands-on experience.
Added 6 days ago
Q
Full Stack Software Developer (Java/React)
Querentia
Toronto, ON
- Contract
We are seeking an experienced Full Stack Software Developer with strong technical leadership capabilities and expertise in enterprise application development, Microsoft Dynamics 365, Power…
Added 6 days ago
C
Senior Java Full Stack Developer
Citi
Mississauga, ON
- Full-time
The JAVA Full Stack Senior Developer role is an intermediate level position responsible for participation in the establishment and implementation of new or revised application systems and…
Added 6 days ago
S
Senior Full Stack Developer
StafinGo
Toronto, ON
- $85 to $100 CAD / hour
- Contract
Java, Spring Boot, REST API, and HAPI FHIR development experience, including hands-on processing of FHIR R4 and DSTU2 resources in production-grade services.
Added 6 days ago
M
RQ11598 - Software Developer - Senior
Maarut
Toronto, ON
- Contract
Additional Skills for Oracle Software Developer:
Added 6 days ago
B
Software Developer - Full Stack - Senior (Java exp with Healthcare FHIR.HL7 experience)
Bevertec
Toronto, ON
- Contract
Job Role: Software Developer - Full Stack - Senior (Java exp with Healthcare FHIR.HL7 experience)
Added 6 days ago
TT
Architect / Lead - Application Modernization - Bilingual
Tech Talent International
Montreal, QC
- $150,000 to $165,000 CAD / year
- Full-time
Added 6 days ago
A
Backend Java Developer
Astek
Montreal, QC
- Full-time
Very strong knowledge of core Java: class loading, garbage collection, Java collections API, Reflections API, Java 8 Streams and Functional Programming
Added 6 days ago
T
Java Software Engineer
ThoughtStorm
Toronto, ON
- $100 to $110 CAD / hour
- Contract
Java, Spring Boot, REST API, and HAPI FHIR development experience, including hands-on processing of FHIR R4 and DSTU2 resources in production-grade services.
Added 6 days ago
B-
Software & IT Specialist
BGES - Big Guns Energy Services Inc.
Calgary, AB
- Full-time
Strong programming skills, preferably including Python and Java, with experience in other programming languages are considered an asset.
Added 7 days ago
M
RQ11556 - Software Developer - Full Stack - Senior
Maarut
Toronto, ON
- Contract
constructed API Knowledge and experience in design and implementation of
Added 7 days ago
M
RQ11720 - Software Developer - Senior
Maarut
Toronto, ON
- Contract
Experience building automated unit, integration, API,
Added 7 days ago
CO
Application & Integration Technical Analyst
City of Saint John
Saint John, NB
- Full-time
Server-side languages: C#/.NET, Java, Python, PHP
Added 7 days ago
GI
Intermediate Software Developer
GuestTek Interactive Entertainment Ltd.
Calgary, AB
- Full-time
As a GuestTek software developer you will dive into a role that lets your creativity and technical experience craft quality and innovative, best-in-class software products as well as design…
Added 7 days ago
GI
Junior Software Developer
GuestTek Interactive Entertainment Ltd.
Calgary, AB
- Full-time
As a GuestTek software developer you will dive into a role that lets your creativity and technical experience craft quality and innovative, best-in-class software products as well as design…
Added 7 days ago
Software Engineer - Agent Development
Infoblox
Burnaby, BC
…develop practical solutions that connect large language models, developer tools, data platforms, and governed engineering processes. This is an opportunity to grow your expertise in…
Added 7 days ago
GI
Senior Software Developer
GuestTek Interactive Entertainment Ltd.
Calgary, AB
- Full-time
As a GuestTek software developer you will dive into a role that lets your creativity and technical experience craft quality and innovative, best-in-class software products as well as design…
Added 7 days ago
M
RQ11657 - Software Developer - Senior
Maarut
Toronto, ON
- Contract
cloud-native solutions utilizing Azure Functions, Logic Apps, API
Added 7 days ago
MC
Software Engineer – Java
MatchBox Consulting Group
Vancouver, BC
- $104,500 to $132,000 CAD / year
- Full-time
MatchBox Consulting Group is currently seeking several Java Developers for a permanent role with a client of ours located in Vancouver

Citi

Senior Java Full Stack Developer

Mississauga, ON, Canada

$94,300.00 - $141,500.00 · Full-time

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Job details

Pay: $94,300.00 - $141,500.00
Job type: Full-time
Posting language: English
Posted: Oct 21, 2026

Original job description

The JAVA Full Stack Senior Developer role is an intermediate level position responsible for participation in the establishment and implementation of new 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.

Responsibilities:

Utilize mature programming methodologies and languages, including Java Spring Boot and React.js, to deliver and maintain high-quality software solutions.
Design, develop, test, and deploy end-to-end solutions, from responsive React.js front-end components to resilient Java Spring Boot microservices.
Architect and implement RESTful APIs and expose backend functionality as MCP (Model Context Protocol) services to be consumed by AI agents.
Deploy and manage applications within Citi's cloud environment (leveraging OpenShift/Kubernetes and AWS), integrating with cloud-native storage like S3 and enterprise databases like Oracle as a Service (OraaS).
Partner with and contribute to a cross-functional team of product managers, designers, and other engineers to translate business requirements into high-quality technical solutions.
Evaluate and recommend new and emerging technologies, including the application of AI, to solve complex business problems.
Ensure software components are designed and implemented to be of high quality, reusable, and easily maintainable.
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.
Conduct tasks related to feasibility studies, time and cost estimates, IT planning, risk technology, applications development, model development, and establish and implement new or revised applications systems and programs to meet specific business needs or user areas
Monitor and control all phases of development process and analysis, design, construction, testing, and implementation as well as provide user and operational support on applications to business users
Utilize in-depth specialty knowledge of applications development to analyze complex problems/issues, provide evaluation of business process, system process, and industry standards, and make evaluative judgement
Recommend and develop security measures in post implementation analysis of business usage to ensure successful system design and functionality
Consult with users/clients and other technology groups on issues, recommend advanced programming solutions, and install and assist customer exposure systems
Ensure essential procedures are followed and help define operating standards and processes
Serve as advisor or coach to new or lower-level analysts
Has the ability to operate with a limited level of direct supervision.
Can exercise independence of judgement and autonomy.
Acts as SME to senior stakeholders and /or other team members.
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.

Qualifications:

Excellent communication and collaboration skills, with the ability to articulate complex technical concepts to diverse audiences.
6+ years of professional experience in full-stack software development, with a proven track record of delivering complex, large-scale, enterprise-level applications
6+ years of hands-on experience designing micro-service-based application
Strong hands-on experience with modern JavaScript frameworks, specifically React.js and TypeScript, for building sophisticated user interfaces
Deep proficiency in Java and the Spring Boot framework for building enterprise-grade microservices
Low-latency, scalable, high-throughput API development (Spring Boot, Hibernate/JPA)
Hands-on experience with a major cloud platform (AWS, Azure, or GCP) and containerization technologies (Docker, Kubernetes, OpenShift). Familiarity with CI/CD pipelines (Jenkins, GitHub Actions) is essential.
Problem-solving, troubleshooting, and clean code (Core Java, J2EE, Collections, Multithreading)
API integration (third-party libraries, security)
Distributed, multi-tier application, Reusable components/services development experience
Experience in systems analysis and programming of software applications
Experience in managing and implementing successful projects
Working knowledge of consulting/project management techniques/methods
Ability to work under pressure and manage deadlines or unexpected changes in expectations or requirements
A strong interest or prior experience in Generative AI, Large Language Models (LLMs), and agent-based systems is highly desirable.
Demonstrated analytical and problem-solving skills with the ability to propose and implement effective solutions

Education:

Bachelor’s degree/University degree 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

For complementary skills, please see above and/or contact the recruiter.

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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.

View Citi’s EEO Policy Statement and the Know Your Rights poster.

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More about this job

Responsibilities

The role involves designing, developing, and deploying end-to-end full-stack solutions using Java Spring Boot and React.js. You will also architect RESTful APIs, manage cloud-native applications, and collaborate with cross-functional teams to deliver high-quality technical solutions.

Requirements

Candidates must have 6+ years of professional experience in full-stack software development and microservices architecture. Proficiency in Java, Spring Boot, React.js, and cloud platforms like AWS or OpenShift is required.

Skills

Java
Spring Boot
React.js
TypeScript
Microservices
RESTful APIs
AWS
OpenShift
Kubernetes
Oracle
CI/CD
Jenkins
GitHub Actions
Generative AI
Large Language Models
Systems Analysis

Visa sponsorship

Not detected in the job text

Keywords

Java
Spring Boot
React.js
TypeScript
Microservices
RESTful APIs
AWS
OpenShift
Kubernetes
Oracle
CI/CD
Jenkins
GitHub Actions
Generative AI
Large Language Models
Systems Analysis
Full Stack Development
Cloud Computing
Docker
Hibernate
JPA
Multithreading
Enterprise Applications
Software Engineering
API Development
Technical Architecture
Agile
Cloud-native
Database Management
Problem Solving

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