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Added 54 mins ago
SM
RQ11739 – Software Developer – Full Stack – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
We are seeking a Senior Software Developer – Full Stack with extensive experience designing and developing large-scale, multi-client web applications, Java-based enterprise solutions, REST…
Added 2 hours ago
TU
Programmer Analyst II
The University of British Columbia
Vancouver, BC
- $8,810.92 to $13,202.5 CAD / month
- Full-time
…minimum and the maximum and represents an employee that possesses full job knowledge, qualifications and experience for the position. In the normal course, employees will be hired,…
Added 2 hours ago
CS
Senior Technical Architect, Application Development & Support
Canadian Standards Association
Toronto, ON
- Full-time
Acts as lead developer and technical design authority for applications in scope, setting coding standards, design patterns, branching strategy, and definition of done for internal and…
Added 3 hours ago
TU
Programmer Analyst II
The University of British Columbia
Vancouver, BC
- $8,810.92 to $13,202.5 CAD / month
- Full-time
…minimum and the maximum and represents an employee that possesses full job knowledge, qualifications and experience for the position. In the normal course, employees will be hired,…
Added 4 hours ago
RI
Senior Forward Deployed Engineer - Java/ Python | Capital Markets
Rose International
Mississauga, ON
- Full-time
4+ years of professional software engineering experience, with demonstrable experience as a Full-Stack Developer transitioning into a customer-facing, Forward Deployed Engineer (FDE)-style…
Added 4 hours ago
RI
Senior Full-Stack Java Developer (Kafka/ Angular)
Rose International
Mississauga, ON
- Full-time
Seeking a Senior Full Stack Java Developer to join a technology team supporting applications and digital solutions within the Banking / Financial Services domain.
Added 6 hours ago
K
Software Engineer
Kelly
Mississauga, ON
- Contract
Role Overview: Senior Forward Deployed Engineer with strong Java and Python expertise to build and deploy production-grade solutions for Fintech clients in the Spread Products domain. This…
Added 6 hours ago
UO
Programmer Analyst II
University of British Columbia
Vancouver, BC · UBCV | The Leonard S. Klinck Building (LSK)
- $8,810.92 to $13,202.5 CAD / month
- Full-time
…minimum and the maximum and represents an employee that possesses full job knowledge, qualifications and experience for the position. In the normal course, employees will be hired,…
Added 6 hours ago
UO
Programmer Analyst II
University of British Columbia
Vancouver, BC · UBCV | The Leonard S. Klinck Building (LSK)
- $8,810.92 to $13,202.5 CAD / month
- Full-time
…minimum and the maximum and represents an employee that possesses full job knowledge, qualifications and experience for the position. In the normal course, employees will be hired,…
Added 6 hours ago
SD
Senior Java Developer
Symbiotic Digital
Toronto, ON · Queen's Park Ontario Provincial Government, Ontario
- Contract
We are seeking a Senior Java Developer - Full Stack to
Added 8 hours ago
M
Senior Full Stack Developer (Java/React)
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 8 hours ago
MM
Senior Forward Deployed Engineer
Mitchell Martin Inc.
Mississauga, ON
- $73 to $78 CAD / hour
- Other
Join a dynamic team as a Senior Forward Deployed Engineer, working directly with clients in a hybrid setting. This role involves architecting and deploying solutions while engaging with…
Added 8 hours ago
MM
Senior Forward Deployed Engineer
Mitchell Martin Inc.
Mississauga, ON
- $62 to $67 CAD / hour
- Other
Join us as a Senior Forward Deployed Engineer in a dynamic, client-facing role within the Fintech industry. This full-time, hybrid position involves collaborating with clients to architect…

Symbiotic Digital

Senior Java Developer

Toronto, ON, Canada
Queen's Park Ontario Provincial Government, ON, Canada

Contract

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Job details

Job type: Contract
Posting language: English
Posted: Oct 27, 2026

Original job description

Position: Senior Java Developer

Location: Toronto, ON

Job ID#: RQ11738

Duration: 12 Months

Role Overview

We are seeking a Senior Java Developer - Full Stack to design, develop, integrate, test, deploy, and maintain enterprise platform capabilities across user interface, service, API, workflow, integration, and data access layers. This role is responsible for building reusable platform services that support multiple business programs while implementing service-specific integrations for modern enterprise applications.

The successful candidate will work closely with architects, product managers, business analysts, UX designers, QA specialists, DevOps engineers, security teams, and business stakeholders to deliver secure, scalable, observable, and maintainable software solutions. The role also provides technical leadership through design reviews, estimation, code reviews, testing, troubleshooting, mentoring, documentation, and production support.

Key Responsibilities

Design, develop, integrate, test, deploy, and maintain enterprise platform applications.
Translate approved technical specifications into secure, tested, and maintainable software solutions.
Develop detailed programming specifications and application code.
Design and develop frontend, backend, API, integration, workflow, middleware, and data access components.
Build and maintain Java-based microservices, REST APIs, RESTful web services, and reusable platform services.
Develop and maintain database objects, queries, data transformations, conversion routines, and integration components.
Implement security gateways and protocols, including identity, access management, token-based authentication, certificates, and secure communications.
Create and maintain automated unit, integration, API, database, and user interface tests.
Participate in design walkthroughs, code reviews, estimation activities, sprint planning, release planning, and technical decision-making.
Review and modify build, configuration, installation, and deployment scripts.
Troubleshoot technical issues during development, migration, deployment, and operational activities.
Collaborate with multidisciplinary teams throughout the software development lifecycle.
Provide production support and continuously improve application performance, reliability, extensibility, and maintainability.
Prepare and maintain technical, deployment, support, and user documentation.
Provide technical guidance while ensuring delivery commitments are met.

Required Experience

Ten or more years of experience designing and developing large-scale, multi-client web applications or equivalent senior-level software development experience.
Extensive hands-on Java development experience.
Strong experience working with Oracle, SQL, or comparable relational database technologies.
Significant experience with REST APIs and RESTful web services.
Experience translating system specifications into working applications, including coding, debugging, testing, maintenance, and documentation.
Experience with microservice architecture and architecture best practices.
Strong understanding of object-oriented programming, design patterns, refactoring, and clean code principles.
Experience developing Internet-ready applications.
Experience working in Agile delivery environments.
Experience with relational and hierarchical databases, query optimization, and data access components.
Experience with security technologies including JSON Web Tokens (JWT), OAuth 2.0, and SSL certificates.
Experience with middleware, enterprise integrations, communications protocols, and data migration activities.
Experience using Azure DevOps or equivalent tools for source control, build, testing, and deployment pipelines.
Experience conducting code reviews, design walkthroughs, and technical troubleshooting activities.
Experience working with diverse business and technical stakeholders.
Experience supporting implementation, conversion, migration, and post-implementation activities.

Technical Skills

Core Skills

Java Development
Oracle Database
SQL
REST APIs
RESTful Web Services
Microservices Architecture
Azure DevOps
Agile Delivery

Technical Competencies

JWT
OAuth 2.0
SSL Certificates
Secure Communications
Identity Integration
Middleware Technologies
Database Design and Optimization
Deployment Automation
Application Troubleshooting
Technical Documentation

Soft Skills

Strong written and verbal communication skills.
Analytical and systematic problem-solving abilities.
Strong decision-making and negotiation capabilities.
Ability to lead discussions and participate in design walkthroughs.
Ability to work effectively with technical and non-technical teams.
Proven ability to perform under pressure and meet deadlines.
Adaptability in fast-paced environments with changing priorities.

Preferred Experience

Experience with public-sector development standards, governance, accessibility, security, information management, and documentation practices.

About Symbiotic Digital.

Symbiotic Digital provides the IT Experts you need that solve problems and get things done. See what the top 2% in their field can do for you. (Symbiotic Digital is a division of Symbiotic Group Inc.) We serve

customers in two ways, we provide:

Digital Experts: IT Consulting expertise. Bright Minds That Produce Proven Results
Recruitment: Find The Right People You Need

Serving IT & Business leaders, Symbiotic Digital provides a business system that enable us to provide the Expert Technical staff needed to solve challenging business and IT problems. IT leaders in the most reputable organizations in Canada have relied on Symbiotic Digital to help them staff difficult assignments with proven Experts uniquely evaluated by our proven QMS- Quality Management System Staff Development Model. We are a 100% Indigenous owned company.

Learn more online at https://www.symbioticgroup.com/home-sd/.

Please submit your most recent resume to: RecDep@symbioticgroup.com

View All Jobs online at: https://www.symbioticgroup.com/view-jobs/

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More about this job

Responsibilities

The Senior Java Developer will design, develop, and maintain enterprise platform applications across full-stack layers. They are responsible for building reusable services, implementing integrations, and providing technical leadership through code reviews and mentoring.

Requirements

Candidates must have ten or more years of experience in large-scale web application development with extensive Java expertise. Strong proficiency in relational databases, RESTful web services, and microservice architecture is required.

Skills

Java
Oracle Database
SQL
REST APIs
Microservices Architecture
Azure DevOps
Agile Delivery
JWT
OAuth 2.0
SSL Certificates
Middleware
Database Design
Deployment Automation
Application Troubleshooting
Technical Documentation
Full Stack Development

Visa sponsorship

Not detected in the job text

Keywords

Java
Oracle
SQL
REST APIs
Microservices
Azure DevOps
Agile
JWT
OAuth 2.0
SSL
Middleware
Full Stack
Enterprise Platform
Database Optimization
Deployment Scripts
Identity Management
Access Management
Web Services
Production Support
Technical Leadership
Design Patterns
Clean Code
Relational Databases
Hierarchical Databases
Data Access
Communication Protocols
Data Migration
System Specifications
Troubleshooting

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