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Added 5 days ago
M
Senior Java Full Stack Developer
Miratech
Toronto, ON
- Full-time
We are looking for a Senior Full Stack Developer to design, build and maintain both front-end interfaces and back-end systems, including APIs, microservices, databases and cloud…
Added 5 days ago
M
Senior Java Full Stack Developer
Miratech
Toronto, ON
- Full-time
We are looking for a Senior Full Stack Developer to design, build and maintain both front-end interfaces and back-end systems, including APIs, microservices, databases and cloud…
Added 5 days ago
CI
UI Developer/Angular
COGNITO INC
ON · Ontario, Canada
- Contract
We are looking to hire Sr. Front-End Developer at Brampton, ON/Toronto, ON to design, develop, and support modern enterprise web applications. The ideal candidate will have strong expertise…
Added 5 days ago
BI
Java Full Stack Developer
BURGEON IT SERVICES
Toronto, ON
- Contract
Microservices architecture, java (Springboot), Restful API, GraphQL, Webapps, Postman, Selenium, Machine Learning/AI
Added 5 days ago
ZS
Java Developer
Zodiac Solutions, Inc
Mississauga, ON
- Full-time
6-10 years of hands-on experience in Java application development.
Added 5 days ago
AS
Frontend Developer
Ardent SoftSol Inc.
Brampton, ON
- Contract
Collaborate with backend teams for API design and troubleshooting.
Added 5 days ago
MM
Oliver Wyman - Software Developer - Data & Analytics (DNA) - Montreal
Marsh McLennan
Montreal, QC
- Full-time
· Expérience pratique récente avec Python et, idéalement, avec un autre langage serveur (C#, .NET, Java, Rust ou C++).
Added 5 days ago
KR
Spring Boot Technical Consultant
KTek Resourcing
Montreal, QC
- Contract
Experience with Python and Spring Boot and REST API development
Added 5 days ago
PG
SDET
Pacer Group
Toronto, ON
- $80,000 to $85,000 CAD / year
- Full-time
We’re looking for an experienced SDET with strong hands-on automation expertise across Web, Mobile, and API testing!
Added 5 days ago
C
Digital S/W Engineering Product Lead Analyst, Vice President
Citi
Mississauga, ON
- Full-time
…Engineering teams to design resilient, scalable, and secure API integrations, webhooks, event-driven pipelines, and data sync…
Added 6 days ago
NI
Angular Developer
Nityo Infotech
Toronto, ON
- Full-time
API Integration: Connect frontend applications to backend services via RESTful APIs and RxJS state management workflows.
Added 6 days ago
I-
Senior Full Stack Developer
I8IS - Infiniti Software Solutions
Toronto, ON
- Full-time
We are seeking an experienced Senior Software Developer – Full Stack to design, develop, integrate, test, deploy, and maintain enterprise-level applications for government programs. The…
Added 6 days ago
M
Senior Java Full Stack Developer
Miratech
Toronto, ON
- Full-time
We are looking for a Senior Full Stack Developer to design, build and maintain both front-end interfaces and back-end systems, including APIs, microservices, databases and cloud…
Added 6 days ago
M
Senior Java Full Stack Developer
Miratech
Toronto, ON
- Full-time
We are looking for a Senior Full Stack Developer to design, build and maintain both front-end interfaces and back-end systems, including APIs, microservices, databases and cloud…
Added 6 days ago
D
Business Technical Analyst
Deloitte
Toronto, ON
- Full-time
We're growing our Product Engineering & Development team and seeking an experienced Junior Developer who can contribute to both delivery and pre-sales activities. Depending on your…
Added 6 days ago
CO
Application & Integration Technical Analyst
City of Saint John
Saint John, NB
- Full-time
Server-side languages: C#/.NET, Java, Python, PHP
Added 6 days ago
M
Senior Java Developer (with LLM expertise)
Miratech
Toronto, ON
- Full-time
This role bridges high-scale microservices architecture with GenAI. You will help the bank build scalable, resilient, API-driven ecosystems that embed LLMs, agentic workflows, and…
Added 6 days ago
M
Senior Java Developer (with LLM expertise)
Miratech
Toronto, ON
- Full-time
This role bridges high-scale microservices architecture with GenAI. You will help the bank build scalable, resilient, API-driven ecosystems that embed LLMs, agentic workflows, and…
Added 6 days ago
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Senior Software Engineer
Mastercard
Toronto, ON
- Full-time
Continuously improve automation, testing, observability, developer experience, and software delivery processes.
Added 6 days ago
JG
Springboot Java Developer
J&M Group
Toronto, ON
- Full-time
5+ years of experience developing enterprise applications using Java and Spring Boot.
Added 6 days ago
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Software Developer - Senior
Lotus IT Solutions
Toronto, ON
- Contract
…Service Delivery and Procurement, is seeking a Senior Software Developer to join a multidisciplinary delivery team based onsite in Toronto. In this role, you will develop, configure,…
Added 6 days ago
LI
Senior Software Developer - Full Stack
Lotus IT Solutions
Toronto, ON
- Contract
…Service Delivery and Procurement) is seeking a Senior Software Developer – Full Stack to design, develop, integrate, test, deploy, and maintain enterprise platform capabilities across the…
Added 6 days ago
M
Software Engineer II
Microsoft
Vancouver, BC
- Full-time
…coding in languages including, but not limited to, C, C++, C#, Java, JavaScript/TypeScript, or Python OR equivalent…
Added 6 days ago
M
Software Engineer II
Microsoft
Vancouver, BC
- Full-time
…coding in languages including, but not limited to, C, C++, C#, Java, JavaScript/TypeScript, or Python OR equivalent…
Added 6 days ago
SM
RQ11657 – Software Developer – Senior
S M Software Solutions Inc
Toronto, ON
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We are seeking a Senior Software Developer / Technical Lead with extensive experience in enterprise application development, Microsoft Dynamics 365, Power Platform, Azure, Dataverse, Java,…

I8IS - Infiniti Software Solutions

Senior Full Stack Developer

Toronto, ON, Canada

Full-time

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Job details

Job type: Full-time
Apply by: Nov 21, 2026
Experience: 10+ years of experience designing and developing large-scale, multi-client web applications or equivalent senior-level development experience.
Posting language: English
Posted: Oct 22, 2026

Original job description

Senior Full Stack Developer

Location: Toronto, ON
Work Arrangement: Onsite – 5 days per week
Contract Duration: November 9, 2026 – September 28, 2027
Contract Type: Contract

About the Role

We are seeking an experienced Senior Software Developer – Full Stack to design, develop, integrate, test, deploy, and maintain enterprise-level applications for government programs. The successful candidate will build secure, scalable, and maintainable platform services across frontend, backend, API, workflow, integration, and data-access layers.

This role involves developing Java-based microservices, REST APIs, database components, and enterprise integrations while collaborating with architects, business analysts, UX designers, QA specialists, DevOps engineers, security teams, and other stakeholders. The developer will also provide technical leadership, conduct code reviews, troubleshoot issues, and support production deployments and ongoing application enhancements.

Key Responsibilities

Design, develop, test, deploy, and maintain secure and scalable enterprise applications.
Build and maintain Java-based microservices, REST APIs, RESTful web services, and reusable platform services.
Develop frontend, backend, workflow, middleware, integration, and data-access components.
Translate technical specifications and business requirements into working, tested applications.
Design and maintain database objects, SQL queries, data transformations, conversion routines, and integration components.
Implement security protocols and gateways, including JWT, OAuth 2.0, SSL certificates, identity integration, and secure communications.
Develop and maintain automated unit, integration, API, database, and user-interface tests.
Participate in design walkthroughs, code reviews, impact assessments, estimation, sprint planning, and release planning.
Review, modify, test, and troubleshoot build, configuration, installation, and deployment scripts.
Resolve technical issues related to development, implementation, migration, deployment, and production operations.
Collaborate with cross-functional business and technical teams throughout the software development lifecycle.
Provide post-implementation support and improve application performance, reliability, extensibility, and maintainability.
Prepare and maintain technical, system, deployment, user, and support documentation.
Provide technical guidance, mentoring, and quality oversight while meeting project deadlines.

Must-Have Skills and Qualifications

10+ years of experience designing and developing large-scale, multi-client web applications or equivalent senior-level development experience.
Extensive hands-on Java development experience with Oracle, SQL, or comparable relational database technologies.
Strong experience designing and developing REST APIs and RESTful web services.
Experience with microservice architecture and Internet-ready applications.
Experience with security gateways and protocols, including JWT, OAuth 2.0, SSL certificates, secure communications, and identity integration.
Strong knowledge of relational and hierarchical databases, query languages, SQL tuning, middleware, gateways, and communications protocols.
Experience with data conversion, migration, and enterprise integration activities.
Strong understanding of object-oriented programming, design patterns, refactoring, clean code, and structured development methodologies.
Experience with Agile delivery approaches, automated testing, and Azure DevOps or comparable tools.
Experience with application deployment, troubleshooting, technical documentation, and post-implementation support.

Technical Skills and Experience

Java development and enterprise application architecture
REST APIs and RESTful web services
Microservices and reusable platform services
Oracle, SQL, and relational or hierarchical databases
SQL tuning and data-access components
JWT, OAuth 2.0, SSL certificates, and identity integration
Middleware, gateways, and enterprise integrations
Azure DevOps, source control, build, testing, and deployment pipelines
Automated testing, debugging, and production support
Agile methodologies and software development lifecycle practices

Soft Skills

Strong written and verbal communication skills.
Excellent analytical, problem-solving, and decision-making abilities.
Ability to communicate technical concepts and present ideas effectively.
Strong collaboration and interpersonal skills.
Ability to work under pressure, adapt to changing priorities, and meet aggressive deadlines.
Experience participating in technical discussions, design reviews, and cross-functional collaboration.

Nice to Have

Experience working with the Ontario Public Service (OPS) or other public-sector organizations.
Knowledge of public-sector development standards, governance, security, accessibility, information management, and documentation requirements.

How to Apply

Interested candidates can send their resumes to itjobs@i8is.com or contact me directly.

Apply About employer

More about this job

Responsibilities

Design, develop, test, deploy, and maintain secure enterprise applications, including Java microservices, REST APIs, frontend and backend components, database objects, and integrations. Provide technical leadership and production support while collaborating with cross-functional teams on reviews, testing, deployments, documentation, and ongoing application improvements.

Requirements

Requires 10+ years of experience developing large-scale web applications, extensive Java and relational database experience, and strong skills in REST APIs, microservices, security protocols, and enterprise integration. Candidates should also have experience with Agile delivery, automated testing, Azure DevOps or comparable tools, deployment, troubleshooting, and technical documentation.

Skills

Java
REST APIs
Microservices
Oracle
SQL
Relational Databases
JWT
OAuth 2.0
SSL Certificates
Identity Integration
Enterprise Integration
Azure DevOps
Automated Testing
Agile Methodologies
Application Deployment
Production Support

Visa sponsorship

Not detected in the job text

Keywords

Java
Full-Stack Development
Enterprise Applications
Microservices
REST APIs
RESTful Web Services
Oracle
SQL
Relational Databases
Hierarchical Databases
SQL Tuning
JWT
OAuth 2.0
SSL Certificates
Identity Integration
Middleware
Enterprise Integration
Azure DevOps
Source Control
Build Pipelines
Deployment Pipelines
Automated Testing
Agile
Object-Oriented Programming
Design Patterns
Data Migration
Production Support
Government Programs
Technical Documentation
Application Security

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