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Added 3 days ago
Senior Java Software Engineer
VLink Inc
Montreal, QC
$55 to $70 CAD / hour
Contract
We are looking for a Java developer (8-10 yrs exp) who can take ownership for the whole end to end delivery, performing analysis, design, coding, testing, and maintenance of large-scale and…
Added 3 days ago
Senior Software Developer
Euna Solutions
ON · Oakville, Ontario
Full-time
…users depend on to responsibly manage public dollars. As a Senior Developer, you will own features end to end across a modernization effort moving a large-scale legacy monolith toward a…
Added 3 days ago
Team Lead, Senior Fullstack Engineer
Arcadia
Toronto, ON
$160,000 to $220,000 CAD / year
Full-time
A fast-growing AI software company is hiring a Team Lead, Senior Full Stack Software Engineer in Toronto to help build a modern enterprise platform used to manage, monitor, and scale AI…
Added 3 days ago
Senior Java Software Engineer
Maarut Inc
Quebec, QC
Contract
Senior Java Developer – AWS | Spring | Microservices
Added 3 days ago
Data Architect
Univeris
Toronto, ON
Full-time
Added 3 days ago
Senior ServiceNow Developer
Brainhunter Systems Ltd
Toronto, ON
Contract
Brainhunter is currently seeking the services of a “Senior ServiceNow Developer ” for a contract opportunity with one of our Valued Clients.
Added 3 days ago
Full Stack Engineer
VStream Labs Inc.
Toronto, ON
$60 to $70 CAD / hour
Contract
Software Developer - Full Stack, Senior (Java / Azure / Esri)
Added 3 days ago
Data Architect
Univeris
Toronto, ON
$130,000 to $150,000 CAD / year
Full-time
Added 3 days ago
Senior Software Developer
isgSearch
Toronto, ON · Greater Toronto Area, Canada
Full-time
Senior Software Developer (Java / Spring Boot)
Added 3 days ago
Financial Risk Analyst
Gala Solutions
Montreal, QC
Contract
We are currently seeking a senior developer within the Fixed Income Derivatives Technology group. Our team works closely with Interest Rates Sales & Trading and the Quantitative Strategists…
Added 3 days ago
Java Developer
TMC Canada
Montreal, QC
Full-time
We're looking for a Senior Java Developer to join a global engineering team building large-scale, distributed risk management applications. You'll work on mission-critical systems that…
Added 3 days ago
Developer Java, Spring, AWS
Maarut
Longueuil, QC
Contract
senior developer with 12 years of experience who can jump right in on existing
Added 3 days ago
Staff Software Developer, Canada Tax Content
Intuit
Toronto, ON
Full-time
The Canada Tax Content team is looking for a highly motivated, innovative Staff Software Developer to help build and maintain Canada's leading tax products. You'll work with a diverse team…
Added 3 days ago
Senior Data Engineer
Royal Bank of Canada
Toronto, ON
Full-time
Experience in building Kotlin, Spring boot and Java applications.
Added 4 days ago
Senior Data Engineer
RBC
Toronto, ON
Full-time
Experience in building Kotlin, Spring boot and Java applications.
Added 3 days ago
Senior Applied Scientist
Microsoft
Vancouver, BC
Full-time
…highly competitive market sound exciting to you? If so, this Senior Applied Scientist role with the Microsoft Turing team may be a great fit for…
Added 3 days ago
Senior Java Backend Developer
TSR Consulting
Mississauga, ON
$70 to $75 CAD / hour
Contract
We are seeking a highly skilled and passionate Senior Java Backend Developer to join our engineering team as a Senior Individual Contributor. In this role, you will be responsible for…
Added 3 days ago
Senior Software Developer
Royal Bank of Canada
Toronto, ON
Full-time
4+ years with Java, J2EE, REST/Microservices, Linux and NoSQL/SQL databases
Added 3 days ago
Senior Software Engineer II, KYC
Carta
Toronto, ON
Full-time
…judgment will directly shape the outcome. You'll join a small, senior team that blends startup-style execution with the rigor required to ship to production at…
Added 3 days ago
Senior Automation Developer
ProxyLink
Toronto, ON
$80 to $83 CAD / hour
Contract
ProxyLink is looking for a Senior Automation Developer to join an enterprise technology environment and play a key role in designing, developing, and implementing automated testing…
Added 3 days ago
Senior Developer Engineer/Leader
Xcelerated Consulting Group, LLC.
Montreal, QC
Contract
As a Senior Developer, you will serve as a technical leader and subject matter expert in the Regulatory Reporting framework. This in-house application ensures the firm meets its global…
Added 3 days ago
Software Engineering Team Lead
Exchange Solutions
Toronto, ON · Greater Toronto Area, Canada
Full-time
As a Team Lead at Exchange Solutions, you are the senior hands-on engineer on your team, delivering a product area of our platform. You set the technical standard in the code your team…
Added 3 days ago
Senior Java Developer
K&K Global Talent Solutions INC.
Mississauga, ON
Full-time
We’re hiring a Senior Java Developer to design, build, and operate enterprise-grade microservices with strong expertise in Spring Boot, Kafka, and MongoDB on Open Shift/AWS.
Added 3 days ago
Senior Analytics Developer
CNN
Ottawa, ON · Kanata, ON
Full-time
CNN is seeking a Sr. Analytics Developer with subject matter expertise in analytic workstreams and data analysis. You have demonstrated a pattern of independently shipping analytical…
Added 23 days ago
Technical Lead / Senior Developer - Software Development
EY
Saskatoon, SK · Toronto, ON · Edmonton, AB · Vancouver, BC · Victoria, BC · Winnipeg, MB · Dieppe, NB · Saint John, NB · St. John's, NL · Halifax, NS · London, ON · Ottawa, ON · AB · ON · Waterloo, ON · Calgary, AB
As a Technical Lead or a Senior Consultant, you will be responsible for leading the design, development, and delivery of scalable enterprise applications. This role combines deep hands-on…

K&K Global Talent Solutions INC.

Senior Java Developer

Mississauga, ON, Canada

Job type: Full-time
Apply by: Oct 17, 2026
Experience: Experience: 9–12 years in backend Java development with microservices at scale.
Posting language: English
Posted: Sep 17, 2026

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Original job description

Position: Senior Java Developer

Location: Mississauga, ON (Hybrid)

Employment Type: Full-Time

Experience Required: 10 + Years

Position Overview:

We’re hiring a Senior Java Developer to design, build, and operate enterprise-grade microservices with strong expertise in Spring Boot, Kafka, and MongoDB on Open Shift/AWS.

Key Responsibilities:

Design, develop, and maintain Java-based microservices adhering to enterprise architecture and coding standards.
Implement RESTful APIs and event-driven components using Kafka for reliable, scalable integrations.
Model MongoDB schemas, define indexes, write efficient queries/aggregations, and tune performance.
Develop and optimize SQL queries (E2 level) for reporting and transactional needs alongside NoSQL workloads.
Ensure high availability, scalability, and performance through proper exception handling, logging, monitoring, and resiliency patterns.
Collaborate with BAs, architects, QA, and DevOps; participate in code reviews, unit testing, and defect resolution.
Support CI/CD pipelines, deployments, and production issue troubleshooting while following secure coding and compliance standards

Required Skills:

Core Java: 8/11/17 with strong hands-on experience in collections, concurrency, JVM internals, and performance tuning.
Spring Stack: Spring Boot, Spring MVC, Spring Data; solid understanding of dependency injection, AOP, and transaction management.
Microservices: Service decomposition, API contracts, configuration management, resilience patterns (retry, circuit breaker, timeout).
APIs & Integration: REST APIs, JSON, OpenAPI/Swagger; integration with upstream/downstream systems.
Messaging: Kafka producers/consumers, topics, partitions, consumer groups, offset management, and basic scaling.
Database: MongoDB – document modeling, indexing strategies, aggregation framework, CRUD optimization, and performance tuning.
Cloud & Platform: OpenShift and/or AWS (deployment, scaling, basic networking, secrets/config).
Data Layer (E2): Ability to design and optimize SQL queries for transactional and reporting use cases where required.

Experience with:

Experience: 9–12 years in backend Java development with microservices at scale.
Proven track record delivering production microservices on OpenShift/AWS with Kafka and MongoDB.
Strong problem-solving, communication, and stakeholder collaboration skills in agile environments.

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More about this job

Responsibilities

Design, develop, and maintain enterprise-grade Java microservices using Spring Boot, Kafka, and MongoDB. Collaborate with cross-functional teams to ensure high availability, scalability, and performance through robust CI/CD and monitoring practices.

Requirements

Requires 10+ years of backend Java development experience with a strong focus on microservices and cloud platforms like AWS or OpenShift. Candidates must possess deep expertise in Java, Spring stack, messaging systems, and database optimization.

Skills

Java
Spring Boot
Kafka
MongoDB
OpenShift
AWS
Microservices
RESTful APIs
SQL
CI/CD
Unit testing
Performance tuning
Event-driven architecture
Agile
JSON
OpenAPI

Visa sponsorship

Not detected in the job text

Keywords

Java
Spring Boot
Kafka
MongoDB
OpenShift
AWS
Microservices
RESTful APIs
SQL
CI/CD
Agile
Backend Development
Performance Tuning
Event-driven
JSON
OpenAPI
Swagger
Dependency Injection
AOP
Transaction Management
Enterprise Architecture
Cloud Computing
Data Modeling
Banking
Resiliency Patterns
Logging
Monitoring
Unit Testing
Production Support
Secure Coding

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