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Added 14 mins ago
Structural Integrity Team Lead
Alstom
Saint-Bruno, QC
…to turnkey systems, services, infrastructure, signalling and digital mobility, we offer our diverse customers the broadest portfolio in the industry. Every day, 80,000 colleagues lead the…
Added 14 mins ago
Systems Administrator 3
British Columbia Lottery Corporation
BC · Hybrid - Kamloops or Vancouver, BC
The Systems Administrator 3 acts as a senior technical resource in application/service architecture, application design and delivery, translating business and technical requirements into…
Added 14 mins ago
M
Marketing Lead, Brand & Revenue
MPOYNT
Toronto, ON
- $110,000 to $125,000 CAD / year
- Full-time
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Added 29 mins ago
I
Java Spring Boot Microservices Developer
Infosys
Mississauga, ON
- Full-time
…This position will interface with key stakeholders and apply technical proficiency across different stages of the Software Development Life Cycle including Requirements Elicitation,…
Added 44 mins ago
S
Business Analyst III
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- Full-time
…processes, data, and enterprise solutions. The BA III drives digital transformation, and benefits realization while providing mentorship and guidance to other analysts and project…
Added 58 mins ago
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Global Program Lead – Bombardier/Challenger-EN
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- Full-time
Lead global standardization for assigned aircraft program(s), ensuring technical accuracy and consistency across training centers through regular reviews, updates, and fleet standardization…
Added 59 mins ago
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Markets Treasury – Lead Business Analyst, Vice President
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Added 1 hour ago
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Executive Producer, Publishing (English Services) (On-Site)
Radio-Canada
Toronto, ON
- Full-time
CBC News is seeking an Executive Producer of Publishing to lead the team responsible for curating CBCNews.ca and the CBC News app, strengthening digital story packaging and guiding…
Added 1 hour ago
U
Business Systems Analyst
UST
Toronto, ON
- Full-time
Born digital, UST transforms lives through the power of technology. We walk alongside our clients and partners, embedding innovation and agility into everything they do. We help them create…
Added 1 hour ago
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Sr. Materials Innovation Manager – Advanced Concepts
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- Full-time
As the Sr. Materials Innovation Manager – Advanced Concepts, you lead the advanced materials development function, creating industry-leading textile technology platforms and collaborating…
Added 1 hour ago
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Digital Art Facilitator (Non-Profit)
Indigenous Friends Association
Canada
- $30 CAD / hour
- Full-time
IndigiTECH is seeking a skilled and creative Digital Artist to join our program as an Independent Digital Artist. The successful candidate will facilitate engaging, hands on digital art…
Added 1 hour ago
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Sr. Materials Innovation Manager – Advanced Concepts
Arc'teryx Equipment
North Vancouver, BC
- Full-time
As the Sr. Materials Innovation Manager – Advanced Concepts, you lead the advanced materials development function, creating industry-leading textile technology platforms and collaborating…
Added 1 hour ago
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Senior Producer
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Vancouver, BC
- Full-time
project schedules, and manage project scope from inception through final delivery.
Added 1 hour ago
Senior Producer
WPP Production
Vancouver, BC
project schedules, and manage project scope from inception through final delivery.
Added 1 hour ago
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Manager, Product Management - Media Solutions
Mastercard
Toronto, ON
- Full-time
…economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation,…
Added 2 hours ago
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Proposal Procurement Lead (North America)
Veolia Environnement SA
Oakville, ON
- Full-time
…organization, the Global Category Team for should-cost modeling, the Technical Category Team for custom fabrication/mechanical installations, and the Regional Execution Team for localized…
Added 2 hours ago
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Community Planner
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Calgary, AB
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Drive continuous learning and mentor junior staff in data science and digital project delivery methodologies, developing the next generation of tech-forward leaders.
Added 2 hours ago
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Director, Energy Advisory
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Calgary, AB
- Full-time
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Added 2 hours ago
AC
Specialist, Product Delivery - Temporary
Air Canada
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- Full-time
Partner with the Product Manager and Engineering Lead to translate product priorities into clear, achievable delivery commitments aligned with POD capacity, technical feasibility,…
Added 2 hours ago
AC
Digital Experience Developer, Campaign Operations
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Dorval, QC
- Full-time
This role combines hands-on development, collaboration and continuous improvement. The developer will lead the technical execution of promotional email and web campaigns, while helping…
Added 2 hours ago
AC
Product Owner, Loyalty Design and Experience
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…& Experience, is responsible for supporting the definition, delivery, operation and continued evolution of loyalty program features and benefits that recognize and reward Air Canada’s most…
Added 2 hours ago
O
Lead Quality Assurance Developer
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- Full-time
…premise and in the cloud. OpenText Capture technology transforms digital and paper business documents into application-ready information providing a flexible, end-to-end capture solution…
Added 2 hours ago
D
Senior SDET / Quality Engineering Lead/Architect
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Added 2 hours ago
A
Automation Controls Sr. Analyst /Consultant
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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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