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Added 2 months ago
M
Lead Software Engineer (SDET)
Mastercard
Toronto, ON
- Full-time
Lead Software Engineer (SDET)Who is Mastercard?
Added 1 month ago
PC
SR&ED Technical Advisor, Director
Pwc Canada
Toronto, ON
- Full-time
Lead the completion of SR&ED claims (Canada) and R&D tax credit claims (US).
Added 2 months ago
JG
Dev Lead
J&M Group
Toronto, ON
- Contract
We are hiring a Dev Lead with strong expertise in application development and maintenance, with hands-on experience in Java/J2EE, Spring Boot, REST APIs, Microservices, AWS, and NodeJS. The…
Added 2 months ago
C
Senior Java Developer
Citi
Mississauga, ON
- Full-time
We are seeking a highly experienced and motivated Lead Java Developer with 6+ years of industry experience to spearhead the development of robust, scalable, and innovative enterprise…
Added 2 months ago
P
SR&ED Technical Advisor, Director
PwC
Toronto, ON
- Full-time
Lead the completion of SR&ED claims (Canada) and R&D tax credit claims (US).
Added 2 months ago
JG
Java Technical Lead
J&M Group
Toronto, ON
- Full-time
We are seeking a highly experienced Java Technical Lead with 12+ years of hands-on experience in enterprise application development and production support. The ideal candidate will possess…
Added 2 months ago
E
Cybersecurity Lead
e-STORAGE
Kitchener, ON
- Full-time
We are seeking a highly skilled and motivated Cyber Security Lead to join our team and contribute to the development of on-premises Energy Management System (EMS) for utility grade systems.…
Added 2 months ago
Software Development Engineer III, Agentic Client Experience (ACE) - Builder Foundations
Amazon
Vancouver, BC
You will lead technical design reviews, mentor engineers, and raise the engineering bar across the team. You'll partner directly with applied scientists on measuring adherence and…
Added 1 month ago
Senior Software Engineer, Atlas Search Systems
MongoDB
Toronto, ON
Excellent verbal and written technical communication skills; enthusiasm for collaborating closely with colleagues and mentoring other engineers
Added 2 months ago
E
Staff Engineer - MTS 2 (Integrations)
eBay
Toronto, ON
- Full-time
This is a highly hands-on technical leadership role for an experienced backend engineer who can define architecture, write production code, and drive execution in a fast-moving, ambiguous…
Added 2 months ago
C
Java Full Stack Development Lead
CGI
Toronto, ON
- Full-time
…we're still growing! Join Canada's largest IT Company as a "Java Full Stack Development Lead" in our Banking Services…
Added 2 months ago
C
Senior Software Engineering Specialist
CGI
Toronto, ON
- Full-time
Lead technical design sessions, perform peer code reviews, and advocate for coding standards and test-driven development (TDD).
Added 2 months ago
RC
Oracle CC&B Techno-Functional Senior Consultant - Canada
Red Clay Consulting
Remote, Canada
- Full-time
- Remote
Collaborate with the Red Clay Lead and Project Manager to support client in identifying, quantifying, and prioritizing enhancements for backlog refinement
Added 2 months ago
CM
Associate Software Engineer
Canon Medical Informatics
Waterloo, ON
- Full-time
…features, while receiving mentorship that helps you strengthen your technical skills, grow your confidence, and learn how high-quality healthcare software is developed. The team’s work is…
Added 2 months ago
A
Staff Software Engineer - Full Stack AI (Bangkok based, Relocation provided)
Agoda
Vancouver, BC
- Full-time
Lead full-stack architecture and system design for features used by millions of customers
Added 2 months ago
C
Senior Platform Engineering Specialist
CGI
Toronto, ON
- Full-time
…reusable engineering assets, and continuously developing your technical and consulting…
Added 2 months ago
C
Senior Data Platform Engineering Specialist
CGI
Toronto, ON
- Full-time
…contributing to reusable data assets, and continuously developing your technical and consulting…
Added 2 months ago
C
Senior Full Stack Developer
CGI
Toronto, ON
- Full-time
Code Quality & Architecture: Lead technical design sessions, perform peer code reviews, advocate for Test-Driven Development (TDD), and apply Domain-Driven Design (DDD) and event-driven…
Added 2 months ago
B
MarTech Developer
BrainStation
Toronto, ON
- $90,000 to $120,000 USD / year
- Full-time
Build scalable solutions that support lead generation, customer engagement, personalization, and marketing measurement initiatives
Added 2 months ago
QF
Principal Software Engineer, Money Movement (Questbank)
Questrade Financial Group
Toronto, ON · North York, ON
- Full-time
This is also one of the first engineering roles at the Bank designed around an AI-driven SDLC. You lead a squad of AI agents covering architecture, development, QA, and tech lead functions,…
Added 1 month ago
Staff Backend Engineer, Passwordless
Okta
Toronto, ON
A strong grasp of architectural patterns for scalability, reliability, and security, with the ability to lead technical design discussions and make informed trade-offs.
Added 2 months ago
C
Quality Assurance Architect (*18 Month Contract*)
CAPREIT
Toronto, ON
- Other
Position Summary: We are seeking a Quality Assurance (QA) Architect to lead the design, implementation, and coordination of enterprise-wide testing strategies. This role is critical in…
Added 2 months ago
WE
[Wattpad] Engineering Manager
WEBTOON Entertainment Inc. (Wattpad & WEBTOON Family of Brands)
Toronto, ON
- Full-time
We are hiring an Engineering Manager for our Platform Engineering team to lead the design, development, and maintenance of the backend platforms that underpin Wattpad's social,…
Added 2 months ago
M
API Architect
Moneris
Toronto, ON
- Full-time
Lead the end-to-end technical delivery of all API Implementation projects, including security, encryption, high availability, and scalability. Drive all aspects of development including…
Added 1 month ago
VA
Member of Technical Staff - ML Operations
Veeda AI
Remote, Canada
- Full-time
- Remote
End-to-End Ownership: Lead projects through the complete software lifecycle, including technical specs, implementation, CI/CD, on-call support, and production observability.

Citi

Senior Java 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
Experience: Experience: 5+ years of progressive experience in software development, with a significant focus on Java/J2EE enterprise applications.
Posting language: English
Posted: Aug 21, 2026

Original job description

Role Overview:

We are seeking a highly experienced and motivated Lead Java Developer with 6+ years of industry experience to spearhead the development of robust, scalable, and innovative enterprise applications. The ideal candidate will possess deep expertise in Java/J2EE and Spring Boot. This role demands a proven track record with strong technical problem-solving and root cause analysis abilities, relational databases such as Sybase and Oracle, exceptional team leadership skills, and a forward-thinking approach to integrating AI technologies into our solutions. You will lead a team of junior developers, providing technical guidance, mentorship, and fostering a collaborative and high-performing environment.

Key Responsibilities:

Critical Incident Management & Resolution:
- Provide advanced technical support for escalated issues from production support team.
- During a production issue, act decisively to identify the root cause and deliver an effective solution.
- Analyzes applications to identify risks, vulnerabilities, security issues and improve the system performance.
- Partners with appropriate development and production support areas to prioritize bug fixes and support tooling requirements.
- Active involvement in and ownership of Support Project items, covering Stability, Efficiency, and Effectiveness initiatives.
- Ensure seamless integration between various system components and external services.
Technical Leadership & Architecture:
- Lead the design, development, and implementation of complex Java/J2EE-based enterprise applications using Spring Boot.
- Define and enforce coding standards, best practices, and architectural patterns to ensure high-quality, maintainable, and scalable solutions.
- Conduct code reviews, provide constructive feedback, and ensure adherence to security and performance standards.
- Act as a subject matter expert for Java technologies, providing technical direction and problem-solving expertise.
Team Management & Mentorship:
- Lead, mentor, and guide a team of junior and mid-level developers, fostering their technical growth and career development.
- Assign tasks, monitor progress, and ensure timely delivery of high-quality software.
- Promote a culture of collaboration, continuous improvement, and knowledge sharing within the team.
- Conduct performance reviews and provide regular feedback to team members.
Innovation & AI Integration:
- Lead initiatives to prototype and implement AI-driven solutions within existing or new applications.
- Stay abreast of emerging technologies and industry trends, particularly in Java and AI, to drive innovation.

Required Qualifications:

Experience: 5+ years of progressive experience in software development, with a significant focus on Java/J2EE enterprise applications.
Core Java: Strong proficiency in Java/J2EE, including advanced concepts like multithreading, concurrency, and data structures.
Analytical Skills: Exceptional analytical and problem-solving skills, with a proven ability to dissect complex technical issues, identify root causes, and drive effective solutions in high-pressure production environments.
Databases: In-depth knowledge and hands-on experience with relational databases, specifically Sybase and Oracle, including SQL, PL/SQL, database design, and performance tuning.
Frameworks: Expert-level knowledge and hands-on experience with Spring Boot, including Spring MVC, Spring Data, Spring Security, etc.
Front-End/GUI: Demonstrated experience with modern GUI technologies (e.g., Angular, React, Vue.js) and associated web technologies (HTML5, CSS3, JavaScript, TypeScript).
Leadership: Demonstrated experience in leading and mentoring development teams, with strong communication, interpersonal, and problem-solving skills.
Tools: Experience with Git, Maven/Gradle, CI/CD pipelines (e.g., Jenkins), and cloud platforms is highly desirable.
Education: Bachelor's or Master's degree in Computer Science, Engineering, or a related field.

Preferred Qualifications:

Experience with microservices architecture and containerization (Docker, Kubernetes).
Familiarity with messaging queues (e.g., Kafka, SOLACE).
Experience with test-driven development (TDD) and behavior-driven development (BDD).
Certifications in Java, Spring, Cloud, or AI technologies.

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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 leading the design and development of complex enterprise Java applications while providing technical mentorship to junior team members. Additionally, the developer will manage critical incidents, perform root cause analysis, and spearhead initiatives to integrate AI technologies into existing systems.

Requirements

Candidates must have at least 5 years of progressive experience in Java/J2EE development with strong proficiency in Spring Boot and relational databases like Sybase and Oracle. A bachelor's or master's degree in Computer Science or a related field is required, along with demonstrated leadership and problem-solving capabilities.

Skills

Java
J2EE
Spring Boot
Sybase
Oracle
SQL
PL/SQL
Angular
React
Vue.js
Git
Maven
Gradle
CI/CD
Jenkins
Microservices

Visa sponsorship

Not detected in the job text

Keywords

Java
J2EE
Spring Boot
Sybase
Oracle
SQL
PL/SQL
Angular
React
Vue.js
Git
Maven
Gradle
CI/CD
Jenkins
Microservices
Docker
Kubernetes
Kafka
SOLACE
TDD
BDD
Artificial Intelligence
Enterprise Applications
Software Development
Cloud Platforms
Multithreading
Concurrency
Data Structures
Security

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