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Added 1 month ago
Senior Software Engineer, Applied AI (Spain)
Justworks
Toronto, ON
Design, build, and own core components of the agent platform, from the orchestration layer to the tool integrations connecting it to internal systems.
Added 18 days ago
Senior Software Engineer, Full-Stack Applications - AI Innovation Teams
Fitch Group
Toronto, ON
Lead transformative full-stack applications with AI at the core – Drive architecture and implementation of net-new applications using Java/Springboot, Python, and REACT that integrate…
Added 1 month ago
Staff Android Developer – Infotainment
General Motors
Markham, ON
Full-time
The Staff Android Developer – Infotainment is a senior technical leader responsible for designing, building, and evolving in-vehicle Android applications and platform components that power…
Added 1 month ago
Design Verification Engineer - technical lead, Annapurna Labs
Amazon
Toronto, ON
…experiences, including our Conversations on Race and Ethnicity (CORE) and AmazeCon (gender diversity) conferences. Amazon’s culture of inclusion is reinforced within our 16 Leadership…
Added 2 months ago
AEM Architect (10-Month Contract)
Saatchi & Saatchi Canada
Toronto, Ontario
Contract
Technical Skills: Deep understanding of Java, Jakarta EE (formerly J2EE), Servlets, OSGi, and HTL/Sightly, combined with strong command of enterprise Java frameworks such as Spring.
Added 1 month ago
Apps Dev Tech Lead Analyst
Citi
Mississauga, ON
Full-time
We are seeking a highly skilled and experienced Backend Java Developer to join our dynamic engineering team. The ideal candidate will be responsible for designing, developing, and…
Added 2 months ago
Manager Software Engineering
PointClickCare
Mississauga, Ontario
$152,000 to $174,000 CAD / year
Full-time
…written conversations and presentations, demonstrating corporate core values and culture, developing professional and positive relationships with customers, and maintaining a reputation of…
Added 2 months ago
Staff Back End Engineer (Data Platform)
Forma.ai
Remote, Canada
Full-time · Remote
Expertise in at least one production-grade backend language (e.g., Python, Java, Kotlin, Go, C#, etc.).
Added 22 days ago
Senior Software Developer (Java)– Platform & Emerging Technologies
Autodesk
Toronto, ON · Montreal, QC
Full-time
Senior Software Developer– Platform & Emerging Technologies
Added 1 month ago
Senior Java Tech Lead - Vice President
Citi
Mississauga, ON
Full-time
Deep, authoritative knowledge of core Java, including multi-threading, concurrency, memory management, and performance tuning
Added 1 month ago
Software Development Engineer, Amazon Tax
Amazon
Vancouver, BC
…building highly scalable and reliable systems or a software developer who likes to solve business problems, Amazon Tax Platform Services is the place for…
Added 1 month ago
Senior / Staff Software Engineer – Core Data Infrastructure
Calliere
Toronto, ON
Full-time
…or pipeline-maintenance role. You will be architecting the core distributed systems that ingest, process, and store terabytes of time-series data daily. You will own the full lifecycle of…
Added 1 month ago
Lead Quality Engineer
Ontario Teachers' Pension Plan
Toronto, ON
Full-time
…TestComplete, ReadyAPI, JMeter, Playwright, QuerySurge, Python, SQL, Java/JavaScript, C#, and related scripting languages or AI…
Added 2 months ago
Information Technology_CAN - CAN_Lead
J&M Group
Toronto, Ontario
Full-time
Strong knowledge of Core Java, Microservices, and Web Services.
Added 1 month ago
Senior Java Developer - Assistant Vice President
Citi
Mississauga, ON
Full-time
Core Java: Strong understanding (preferably Java 11/17), multithreading, collections, garbage collection, JVM internals
Added 1 month ago
AI Augmented Developer II (Espresso)
LGI Healthcare Solutions Santé Inc.
Montreal, QC
Full-time
For more than 40 years, LGI has been developing software solutions for the healthcare sector. Today, AI is at the core of how we build software and the next generation of our solutions, not…
Added 1 month ago
Backend Java Developer, Assistant Vice President
Citi
Mississauga, ON
Full-time
Deep understanding of Core Java (Java 17/21), including modern features (Lambdas, Streams, Records, Pattern Matching), multi-threading, concurrency, and memory management.
Added 1 month ago
Solutions Design IT Specialist
TD
Toronto, ON
Full-time
The TDS MIDAS team is seeking an experienced developer to lead application modernization, business‑as‑usual (BAU) development, and the delivery of new data pipeline initiatives. This role…
Added 7 days ago
QA Engineer - Ostro
Jobgether
Canada
Full-time
Automation expertise: Hands-on experience with testing frameworks such as Cypress, Playwright, or Selenium, combined with proficiency in JavaScript, Python, or Java.
Added 2 months ago
Java Backend Developer
LTM
Ontario · Ontario, Canada
$85,000 to $120,000 USD / year
Full-time
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 DevOps QA…
Added 2 months ago
Frontend Angular Developer
LTM
Ontario · Ontario, Canada
$85,000 to $120,000 USD / year
Full-time
Strong expertise in Core Java Java 8 OOPs collections concurrency and multithreading
Added 2 months ago
Research Engineer - AI Data Security
Huawei Technologies Canada Co., Ltd.
Markham, ON · Waterloo, ON
Contract
Proficiency in at least one of the following core programming languages: C/C++, Java, or Python.
Added 2 months ago
Intern Researcher - AI Data Security
Huawei Technologies Canada Co., Ltd.
Waterloo, ON
Internship
Proficiency in at least one of the following core programming languages: C/C++, Java, or Python.
Added 24 days ago
Senior Software Engineering Lead - Landmark
Halliburton
Calgary, AB
Cloud infrastructure, data services, and developer tooling
Added 1 month ago
Intern Engineer - openJiuwen AI Agent Platform
Huawei Technologies Canada Co., Ltd.
Markham, ON
Internship
Design and develop core capabilities of the openJiuwen AI Agent Platform, including Agent Frameworks, Workflows, Tool Calling, MCP, and Multi-Agent collaboration.

Citi

Apps Dev Tech Lead Analyst

Mississauga, ON, Canada

Pay: $120,800.00 - $170,800.00
Job type: Full-time
Experience: 6-10 years of relevant experience in Apps Development or systems analysis role
Posting language: English
Posted: Aug 4, 2026

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Applications open in a new tab.

Original job description

We are seeking a highly skilled and experienced Backend Java Developer to join our dynamic engineering team. The ideal candidate will be responsible for designing, developing, and maintaining scalable, high-performance, and resilient backend services. This role involves working with a modern technology stack focused on asynchronous, event-based microservices, reactive programming, and robust data persistence solutions. A strong commitment to quality through Test-Driven Development (TDD) and comprehensive unit testing is essential.

Responsibilities:

Design, develop, and deploy asynchronous, event-driven microservices using Java.
Implement solutions leveraging Java Lambdas and Reactive Functional Programming paradigms.
Work with NoSQL databases, specifically MongoDB, for efficient data storage and retrieval.
Utilize Elasticsearch for building powerful search and analytics capabilities.
Integrate and develop event streaming solutions with Apache Kafka.
Ensure high code quality through adherence to Test-Driven Development (TDD) principles and writing thorough JUnit tests.
Collaborate with frontend developers, product managers, and other stakeholders to define and deliver features.
Participate in code reviews to maintain code quality, share knowledge, and ensure best practices.
Troubleshoot and debug production issues, providing timely resolutions.
Contribute to the continuous improvement of our development processes, tools, and methodologies.
Stay up-to-date with emerging trends and technologies in backend development.
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.

Required Skills and Experience

Core Technologies:

Languages & Frameworks: Strong proficiency in Java (Java 8+), with extensive experience in building scalable backend applications.
Microservices: Experience with designing and implementing asynchronous, event-based microservices architectures.
Functional & Reactive Programming: Hands-on experience with Java Lambdas and Reactive Programming frameworks (e.g., Spring WebFlux, Reactor, RxJava).

Databases:

NoSQL: Strong experience with MongoDB.
Search & Analytics: Proficiency with Elasticsearch.
Messaging & Streaming: Solid experience with Apache Kafka for event streaming and messaging.

Development Practices

Testing: Expert-level understanding and practical application of JUnit for unit testing and Test-Driven Development (TDD).
Version Control: Proficient with Git and collaborative development workflows (e.g., Pull Requests, GitFlow).
CI/CD: Familiarity with continuous integration and continuous deployment pipelines.

Recommended Qualifications:

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
Bachelor's or Master's degree in Computer Science, Engineering, or a related field.
Experience with Docker and Kubernetes for containerization and orchestration.
Knowledge of other NoSQL databases.
Contributions to open-source projects.
Experience in a fast-paced, agile development environment.

Education:

Bachelor’s degree/University degree or equivalent experience
Master’s degree preferred

This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required.

Strong understanding of data structures, algorithms, and object-oriented design principles.
Experience with RESTful API design and development.
Familiarity with cloud platforms (e.g., AWS, Azure, GCP) is a plus.
Excellent problem-solving, analytical, and debugging skills.
Ability to work independently and as part of a collaborative team.

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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:

$120,800.00 - $170,800.00

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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 maintaining scalable, asynchronous, event-driven microservices using Java. You will collaborate with cross-functional teams to define features, troubleshoot production issues, and ensure high code quality through TDD and rigorous testing.

Requirements

Candidates must have 6-10 years of experience in applications development with strong proficiency in Java, NoSQL databases, and event streaming technologies. A bachelor's or master's degree in Computer Science or a related field is required, along with leadership skills and expertise in system analysis.

Skills

Java
Microservices
MongoDB
Elasticsearch
Apache Kafka
Test-Driven Development
JUnit
Reactive Programming
Spring WebFlux
Git
CI/CD
Docker
Kubernetes
RESTful API
System Analysis
Project Management

Visa sponsorship

Not detected in the job text

Keywords

Java
Microservices
MongoDB
Elasticsearch
Apache Kafka
Test-Driven Development
JUnit
Reactive Programming
Spring WebFlux
Git
CI/CD
Docker
Kubernetes
RESTful API
System Analysis
Project Management
Backend Development
Asynchronous
Event-driven
Agile
Cloud Platforms
Algorithms
Data Structures
Object-Oriented Design
Software Engineering
Applications Programming
Infrastructure
Architecture
Debugging
Technical Leadership

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