Toronto, On Full stack java / api developer Jobs – 109 Openings This Week

Senior Java Full Stack Developer
Staffmax —Mississauga, ON
- $110,000–$120,000 a year
- Computer Science
- Software troubleshooting
- Engineering
Quick apply
6d
Software Developer – Full Stack
Softline Technology —Toronto, ON
- Contract
- Maintenance
- Java
- SQL
14h
Senior Software Developer - Transit Platform Modernization
GTT, LLC —Toronto, ON
- $95–$105 an hour
- Contract
- Hybrid work
- Azure
- Management
- DevOps
Quick apply
Principal Associate Software Engineer - International Card Tech - Full-Stack
Capital One —Toronto, ON
- Full-time
- Hybrid work
- Computer Science
- Engineering
- Java
6h
Sr Lead Java Fullstack Software Engineer
Citi —Mississauga, ON
- $145,100–$217,700 a year
- Full-time
- Hybrid work
- Azure
- System design
- Master's degree
BANAMEX Ejecutivo de Cuenta PYME Monterrey Sur
Citi —Mississauga, ON
- $120,800–$170,800 a year
- Full-time
- Azure
- Master's degree
- AWS
Senior AWS Lambda (Java) Developer
Play Hockey —Canada
- From $80,000 a year
- Full-time
- Remote
- Computer Science
- DevOps
- Java
- Disability insurance
- Dental care
Quick apply

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Senior Java Full Stack Developer
Staffmax —Mississauga, ON
Bachelor's degree in Computer Science, Software Engineering, or a related field. This role involves developing resilient distributed systems, implementing event…
$110,000–$120,000 a year
Quick apply
6d
Software Developer – Full Stack
Softline Technology —Toronto, ON
You are experienced senior member of development team, leading by example, taking ownership in design and delivery with strong track record for meeting…
14h

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Full-Stack Java/Angular Lead Developer
Intact —Richmond Hill, ON
Pour honorer notre promesse de réussir en équipe, nous partageons les fruits de notre succès avec nos employés par l’entremise d’un programme de bonis annuels…
$118,700–$145,100 a year
3d
Senior AWS Lambda (Java) Developer
Play Hockey —Canada
Play Hockey offers a competitive compensation package, benefits program, remote work, and a fun yet challenging work environment.
From $80,000 a year
Quick apply

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full stack java / api developer jobs near toronto, on

Senior Java Full Stack Developer

Staffmax -
Mississauga, ON

Quick apply

Job details

Permanent
$110,000–$120,000 a year
6 days ago

Qualifications

Spring Boot
Performance tuning
Software engineering
Quality assurance test automation development
UI development
Defect resolution root cause analysis
Computer Science
Software Engineering
Container orchestration
Software troubleshooting
RESTful API
Engineering
Test-driven development
MongoDB
Microservices
Event-driven architecture
Bachelor's
Cloud development
Distributed systems
Back-end development
Mentoring
Scrum
Red Hat OpenShift
Kafka
Cross-functional collaboration
Multithreading
PL/SQL
Software development or architecture experience
Communication skills
Debugging
Cross-functional communication
Failure analysis

Full job description

Location: Mississauga, ON (Hybrid)

Salary: CAD $110,000 – $120,000

Job Summary

We are seeking a Senior Java Full Stack Developer to design and build scalable, high-performance applications supporting regulatory platforms. The ideal candidate will have strong expertise in Java 11+, Spring Boot, Microservices, Kafka, MongoDB, SQL/PLSQL, and modern cloud-native development practices. This role involves developing resilient distributed systems, implementing event-driven architectures, and contributing to engineering excellence through Agile and DevOps methodologies.

Key Responsibilities

Design, develop, and maintain scalable Java 11+ microservices and full-stack applications.
Build high-performance backend services using Spring Boot, REST APIs, and event-driven architecture.
Implement Kafka producers, consumers, and topics for reliable asynchronous processing.
Develop and maintain UI and API layers while integrating with downstream services.
Apply multithreading and concurrency concepts to improve application performance and throughput.
Design and optimize data persistence using MongoDB and SQL/PLSQL.
Improve application observability using ELK and centralized logging solutions.
Support containerized deployments using Docker, OpenShift, or similar platforms.
Monitor production systems, perform root cause analysis, troubleshoot issues, and implement permanent fixes.
Follow clean coding principles, design patterns, and software engineering best practices.
Participate in code reviews and contribute to architecture and technical design discussions.
Collaborate with cross-functional teams including architects, DevOps engineers, QA, and product owners.
Mentor junior developers and promote engineering excellence within the team.

Required Qualifications

Bachelor's degree in Computer Science, Software Engineering, or a related field.
7+ years of experience in Java application development.
Strong experience with Java 11+, Spring Boot, and Microservices architecture.
Hands-on experience with Apache Kafka and event-driven systems.
Strong knowledge of MongoDB and SQL/PLSQL.
Experience with RESTful API development and distributed systems.
Experience with multithreading and concurrent programming.
Familiarity with Docker, OpenShift, Kubernetes, or similar container platforms.
Experience with ELK Stack or centralized logging and monitoring tools.
Strong debugging, troubleshooting, and production support experience.
Experience working in Agile/Scrum environments.
Excellent communication and collaboration skills.

Preferred Qualifications

Experience building low-latency, high-availability transactional systems.
Knowledge of distributed caching technologies.
Experience with CI/CD pipelines and DevOps practices.
Hands-on experience with TDD, BDD, unit testing, and automated testing frameworks.
Knowledge of secure coding practices and application security.
Experience mentoring developers and leading technical initiatives.
Exposure to Fixed Income products and regulatory reporting is considered a strong asset.

Quick apply

Refine Your Search

full stack java / api developer jobs in toronto, on

Senior Java Full Stack Developer

Software Developer – Full Stack

Senior Software Developer - Transit Platform Modernization

Principal Associate Software Engineer - International Card Tech - Full-Stack

Sr Lead Java Fullstack Software Engineer

BANAMEX Ejecutivo de Cuenta PYME Monterrey Sur

Senior AWS Lambda (Java) Developer

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