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Added 4 days ago
Sr. Software Engineer - Fullstack
eBay
Toronto, ON
Full-time
We are looking for a Senior Software Engineer – Full Stack with 6+ years of professional software development experience to help build a new, scalable authentication platform.
Added 3 days ago
Full Stack Engineer
Zapcom Group Inc
Toronto, ON
$90,000 to $110,000 CAD / year
Full-time
Looking for Sr full stack developers 8+ year's experience who needs to have core Java, Spring boot skills on backend and JavaScript and React skills on frontend.
Added 29 days ago
Senior AI Engineer – JVM Engineering (Java/Kotlin), Knowledge Graphs, MCP
Astra-North Infoteck Inc. ~ Conquering today’s challenges, achieving tomorrow’s vision!
Toronto, ON
Full-time
We are looking for an experienced and highly motivated Senior AI Engineer to join the Technology Strategy team.
Added 3 days ago
Sr. Software Engineer (Python, AWS Lambda)
Apptoza Inc.
Toronto, ON
Contract
Role Descriptions: Role: Sr. Software Engineer - Contact Centre Innovation & GenAIThis role offers an exciting opportunity to shape the future of Customers contact center technology and…
Added 3 days ago
Solutions Architect-Java
emergiTEL
Toronto, ON
Full-time
Proficiency in at least one modern backend language such as Java or Python.
Added 3 days ago
AI Platform Engineer with DevOps Experience
Net2Source (N2S)
Halifax, NS
Contract
· An engineer mindset, SDLC experience with production class delivery, strong analytical mindset, communication skills, and sense of ownership / drive
Added 3 days ago
Senior DevOps Engineer - Cloud Operations
Black Duck
Calgary, AB
Full-time
Staff. DevOps Engineer will be a key player on the Cloud Operations team responsible for all SaaS and Hosted services across the company's product portfolio. They will proactively work with…
Added 4 days ago
Senior Analytics Developer
Warner Bros. Discovery
Ottawa, ON
Full-time
You think about the long-term health of your work, your monitoring, your alerting, and your documentation. You nurture all of these in parallel to your engineer responsibilities.
Added 3 days ago
Staff Product Security Engineer, Reviews
Okta
Toronto, ON
The Staff Product Security Engineer Opportunity
Added 3 days ago
Senior Software Engineer, Agent Gateway
Okta
Toronto, ON
Okta is looking for a Senior Software Engineer to help build the Agent Gateway. You will own features and components across the data and control planes, turning technical designs and…
Added 3 days ago
Senior Software Engineer II, KYC
Carta
Toronto, ON · Waterloo, ON
As a Senior Software Engineer II, KYC, you will lead technically complex projects and serve as a multiplier for your team. You’ll work to:
Added 3 days ago
Senior Software Engineer, Agent Gateway
Okta
Toronto, ON
$136,000 to $187,000 CAD / year
Full-time
Okta is looking for a Senior Software Engineer to help build the Agent Gateway. You will own features and components across the data and control planes, turning technical designs and…
Added 4 days ago
Senior Software Engineer, Operations
Sun Life
Toronto, ON · Waterloo, ON · Sun Life Waterloo King
Full-time
We are looking for a highly motivated Senior Software Engineer with at least 10 years of Java application support, analysis, and development experience. The successful candidate will have…
Added 3 days ago
Quality Assurance Engineer
Adacel
Montreal, QC
Full-time
Under the general direction of the Manager of Engineering, the QA Engineer designs, develops, and maintains automated testing solutions that verify the quality, reliability, and performance…
Added 3 days ago
Software Engineer Dev Lead
J&M Group
Montreal, QC
Contract
Lead design and development of scalable Java/Spring Boot microservices and event-driven solutions.
Added 3 days ago
Machine Learning Engineer
Ardent SoftSol Inc.
Vancouver, BC
$45 to $50 CAD / hour
Contract
We are looking for an ML engineer with expertise in Unity Catalog and Feature Store in Databricks to help us build and maintain a solid foundation for our data and machine learning…
Added 4 days ago
(Python) AI Engineer - Vice President
Citi
Mississauga, ON
Full-time
…President (VP), to join our team as an Application Development AI Engineer. The ideal candidate is a seasoned engineer with a proven track record of building and scaling high-performing and…
Added 3 days ago
ADAS Software Verification and Validation Engineer
Ford Motor Company
Waterloo, ON
Full-time
Ability to interpret C/C++, Python, Java code, or logs to aid in issue resolution
Added 3 days ago
Full Stack Engineer \ Developer
TSR Consulting
Mississauga, ON
Contract
Experience: 8+ years of professional experience in application development or systems analysis, with a heavy emphasis on Java-based backend architectures.
Added 3 days ago
Senior Java Software Engineer
Cyber Space Technologies LLC
Montreal, QC
Full-time
We are seeking an experienced Java Developer with strong expertise in Java, Spring Framework, Microservices, and cloud-native application development. The ideal candidate will have…
Added 4 days ago
Cloud Engineer
Royal Bank of Canada
Toronto, ON
Full-time
We're not looking for someone who just knows Kubernetes, Kafka, Elasticsearch, and Redis. We're looking for a Senior Engineer who treats AI-assisted engineering as a core skill - someone…
Added 3 days ago
SDET Contractor
PlayStation Global
Waterloo, ON
We are looking for an experienced Software Development Engineer in Test (SDET) to help ensure the quality, reliability, and resilience of Agentic AI systems and backend services. This role…
Added 3 days ago
Senior Java/Spark Developer
Open Systems Technologies
Mississauga, ON
Contract
We are seeking a Core Java Engineer with an expertise in big data processing, particularly within the TechFin industry. This is a Contract to Hire role. Its a 3 days Hybrid position in…
Added 4 days ago
DevOps Software Engineer - ITS4
Minnesota Direct Care and Treatment
Saint-Paul, NB · St.-Paul, NB
Full-time
Designing, developing, or supporting applications using modern programming languages or frameworks (e.g., Java or similar).
Added 3 days ago
Sr. Java Developer
IT Connex
Toronto, ON · Greater Toronto Area, Canada
Contract
Our client is seeking a Core Java Engineer with an expertise in big data processing, particularly within the TechFin industry. Candidate should have experience working with financial…

TSR Consulting

Full Stack Engineer \ Developer

Mississauga, ON, Canada

Job type: Contract
Apply by: Oct 17, 2026
Experience: Experience: 8+ years of professional experience in application development or systems analysis, with a heavy emphasis on Java-based backend architectures.
Posting language: English
Posted: Sep 17, 2026

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Original job description

Technical Skills & Qualifications

Required Qualifications:

Experience: 8+ years of professional experience in application development or systems analysis, with a heavy emphasis on Java-based backend architectures.
Core Java Mastery: Deep, expert-level understanding of Core Java (Java 11/17/21), including advanced multithreading, concurrency models, Java memory model (JVM garbage collection, heap analysis), and Collections API.
Data Processing & Streaming: Extensive hands-on experience building distributed data processing systems, ETL pipelines, and real-time streaming architectures using tools like Apache Kafka, Apache Spark, Flink, or Hadoop.
Framework Expertise: Strong experience with the Spring Ecosystem (Spring Boot, Spring Cloud, Spring Data, Spring Security) and ORM frameworks (Hibernate/JPA).
Database Management: Proficiency in designing schemas and writing optimized queries for both relational databases (e.g., PostgreSQL, MySQL, Oracle) and NoSQL stores (e.g., Cassandra, MongoDB, Redis).
Distributed Systems: Comprehensive understanding of distributed system design patterns, consensus protocols, caching strategies, and API design (RESTful APIs, gRPC).
CI/CD & DevOps: Practical experience with containerization (Docker, Kubernetes), continuous integration/continuous deployment tools (Jenkins, GitLab CI, or GitHub Actions), and infrastructure-as-code principles.
Testing: Strong advocate for testing frameworks such as JUnit, Mockito, and integration testing tools.

Preferred Qualifications:

Experience with cloud platforms (AWS, Azure, or GCP), specifically managed database and container services.
Experience in financial services, banking technology, or large-scale enterprise transaction systems.
Familiarity with Unix/Linux environments, shell scripting, and network configurations.

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More about this job

Responsibilities

The role involves building and maintaining distributed data processing systems and real-time streaming architectures. You will be responsible for designing schemas, optimizing database queries, and implementing robust backend solutions using the Spring ecosystem.

Requirements

Candidates must have 8+ years of professional experience with deep expertise in Core Java and distributed system design. Proficiency in containerization, CI/CD pipelines, and database management for both relational and NoSQL systems is required.

Skills

Java
Spring Boot
Apache Kafka
Apache Spark
Distributed Systems
PostgreSQL
NoSQL
Docker
Kubernetes
CI/CD
Multithreading
Hibernate
RESTful APIs
gRPC
Cloud Platforms

Visa sponsorship

Not detected in the job text

Keywords

Java
Spring Boot
Spring Cloud
Apache Kafka
Apache Spark
Flink
Hadoop
Hibernate
PostgreSQL
MySQL
Cassandra
MongoDB
Redis
Docker
Kubernetes
Jenkins
GitLab CI
GitHub Actions
JUnit
Mockito
AWS
Azure
GCP
Distributed Systems
ETL Pipelines
RESTful APIs
gRPC
Multithreading
JVM
Infrastructure-as-code

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