Jobs in Canada

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Added 5 hours ago
SM
RQ11871 – Systems Testing/QA Specialist – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
Work Arrangement: Onsite – 5 Days per Week
Added 8 hours ago
K
Senior Algorithm Developer –Supply Chain Production Scheduling
Kinaxis
Ottawa, ON
- Full-time
As a Senior Algorithm Developer, you will contribute across the full lifecycle of algorithm backed product development , working at the intersection of real-world scheduling problems and…
Added 9 hours ago
YC
Senior Developer, D365
Yoush Consulting
Toronto, ON
- Full-time
As a Senior Developer, Dynamics 365 your responsibilities will include:
Added 10 hours ago
A
Senior Principal Engineer
Autodesk
AB · Alberta, Canada
- Full-time
GET Engineering is seeking an experienced Senior Principal Engineer – AI and Engineering Excellence to lead the technical strategy and evolution of our cloud platform, developer experience,…
Added 10 hours ago
RB
Senior Full Stack Engineer
Royal Bank of Canada
Vancouver, BC
- Full-time
As Senior Full Stack Engineer in AI Engineering within US Functions Technology you will be a hands-on contributor helping modernize how US corporate functions build and run their…
Added 12 hours ago
EC
Senior Technical Lead – Healthcare Integration (FHIR)
Experis CA
Brampton, ON
- Contract
Our client is seeking a Senior Technical Lead – Healthcare Integration (FHIR) to join their team. As a Senior Technical Lead – Healthcare Integration (FHIR), you will be part of the…
Added 12 hours ago
AT
Vulnerability Researcher - Global (All Levels)
AMT Trend Micro Incorporated (USA)
Canada
- Full-time
We're primarily seeking experienced Senior, Staff, and Principal-level researchers. The ideal candidate will have deep technical expertise and the ability to operate at a Staff level or…
Added 12 hours ago
RC
Senior Software Developer
Randstad Canada
ON
- Contract
We are seeking an experienced Senior Software Developer to lead the technical design, development, optimization, and ongoing sustainment of mission-critical enterprise database and…
Added 12 hours ago
Technical Business Analyst
Astra North Infoteck Inc.
Montréal, QC
Should have prior experience in Java development, microservices. API understanding.
Added 12 hours ago
U
Software Developer - Senior
Upstaff
Toronto, ON
- Full-time
The Health Services Cluster is seeking Senior Software Developers to support the Voluntary Mergers of Public Health Units (PHUs) initiative.
Added 12 hours ago
U
Systems Testing/QA Specialist (Senior)
Upstaff
Toronto, ON
- Full-time
Candidates must be available to work onsite at the Toronto office five days per week
Added 12 hours ago
U
Software Developer - Full Stack (Senior)
Upstaff
Toronto, ON
- Full-time
The client is seeking a Senior Full Stack Software Developer to provide production maintenance, application support, enhancements and development for the Ontario Agricultural Soil…
Added 12 hours ago
Software Developer - Full Stack (Java)- Senior - 4 months contract
Dimensional Tech Inc.
Toronto, ON
7+ years of full-stack Java development knowledge and experience designing and delivering solutions
Added 12 hours ago
H
Principal AI/ML Engineer
HPE
BC
- Full-time
Strong programming skills in Python, Java, Golang, or JavaScript.
Added 12 hours ago
RC
Senior Systems Testing/QA Specialist
Randstad Canada
Toronto, ON
- Contract
We are seeking an experienced Senior Systems Testing/QA Specialist to lead the design, planning, and execution of comprehensive quality assurance initiatives for cloud-based enterprise web…
Added 12 hours ago
HP
Principal AI/ML Engineer
Hewlett Packard Enterprise
BC
- Full-time
Strong programming skills in Python, Java, Golang, or JavaScript.
Added 12 hours ago
HP
Principal AI/ML Engineer
Hewlett Packard Enterprise
BC
- Full-time
Strong programming skills in Python, Java, Golang, or JavaScript.
Added 12 hours ago
HP
Principal AI/ML Engineer
Hewlett Packard Enterprise
BC
- Full-time
Strong programming skills in Python, Java, Golang, or JavaScript.
Added 12 hours ago
RC
Senior Software Developer - Full Stack
Randstad Canada
Toronto, ON
- Contract
We are seeking an experienced Senior Software Developer - Full Stack to lead the maintenance, enhancement, and production support of a cloud-hosted enterprise web application and its…
Added 12 hours ago
A
Intern, Software Developer, Stagiaire en Développement Logiciel
Autodesk
Montréal, QC
- Full-time
- On-site
You will report to the Senior Manager, Software Development Manager based in Canada, and the role is a hybrid based in Montreal. This is an exciting opportunity to be part of and to help…
Added 12 hours ago
Software Developer - Senior
Bevertec
Mississauga, ON
Job Role: Software Developer - Senior (Mobile App Development- Ionic Framework/Cordova plugins/Google Flutter exp)
Added 12 hours ago
Senior Data Engineer
Queen's University
Kingston, ON
Reporting to the Manager, Data Platforms, Information Technology Services (IT Services), the Senior Data Engineer (Engineer) is a seasoned IT professional who leads the team with the design…
Added 12 hours ago
S
Data Scientist
SPECTRAFORCE
Toronto, ON
- Hybrid
Must Have Hard Skills:
Added 12 hours ago
IG
COPY - INTL - Junior Software Engineer
Insight Global
Kanata, ON
- From $33 CAD / hour
- Contract
- Participate in Agile development cycles and collaborate with senior engineers.
Added 12 hours ago
Senior Software Development Engineer in Test
Episode Six US
Toronto, ON
We are a growing fintech organization looking to add a Senior Software Development Engineer in Test!

Randstad Canada

Senior Software Developer

ON, Canada

Contract

Apply on randstad.ca About employer

Applications open in a new tab.

Job details

Job type: Contract
Apply by: Jan 11, 2027
Posting language: English
Posted: Nov 13, 2026

Original job description

We are seeking an experienced Senior Software Developer to lead the technical design, development, optimization, and ongoing sustainment of mission-critical enterprise database and application solutions. In this role, you will partner with business analysts and cross-functional technical teams to translate complex functional specifications into scalable OLAP and OLTP Oracle database architectures, automated data warehouse pipelines, and integrated application extensions. Leveraging deep expertise in Oracle (12c+), PL/SQL, performance tuning, ETL processes, and enterprise reporting platforms, you will support system upgrades, troubleshoot production incidents, maintain continuous integration workflows, and ensure high availability and data accuracy across large-scale healthcare and clinical ecosystems.

Location: Toronto, ON (Fully Onsite – 5 days/week required)

Duration: 15-month contract.

Advantages
Long-Term Engagement: Secure a stable 15-month contract leading high-impact enterprise database and software development.

Complex Data Architecture Scope: Own end-to-end Oracle OLTP/OLAP design, data warehousing, ETL pipelines, and performance tuning.

Mission-Critical Healthcare Impact: Directly enhance data integrity and availability for large-scale clinical and public health systems.

Collaborative Onsite Workspace: Partner closely with multidisciplinary developers, analysts, and QA specialists in Toronto.

Responsibilities
Design, develop, and maintain Oracle (12c+) database solutions for OLAP and OLTP environments, including complex PL/SQL code, stored procedures, packages, functions, triggers, ref cursors, and dynamic SQL.

Architect normalized and de-normalized database schemas, execute advanced SQL query optimization, and implement database performance tuning and automation scripts.

Design, build, and maintain data warehouse structures and ETL workflows using Informatica and Unix/Linux shell scripting.

Collaborate with business analysts to translate business requirements and functional specifications into comprehensive application designs, programming specifications, and data models.

Develop, test, debug, and sustain custom application extensions, data deduplication routines, and integration services supporting mission-critical health systems.

Conduct technical impact analyses, effort estimations, and solution designs for major software upgrades, system merges, and evolving operational requirements.

Perform proof-of-technology load simulations and performance tuning exercises to ensure system scalability and responsiveness.

Provide Tier-3 production application support, root-cause troubleshooting, incident management, and bug resolution alongside Quality Assurance (QA) teams.

Maintain development environments, adhere to Continuous Integration (CI) and DevOps best practices, and author clear technical system documentation.

Build and support enterprise reports and dashboards utilizing Cognos (Framework Manager, Report Studio, Query Studio) and related reporting tools.

Qualifications
Oracle Database & PL/SQL Development: 10+ years of hands-on experience designing and developing Oracle (12c+) solutions for OLAP and OLTP applications, including PL/SQL, stored procedures, packages, functions, triggers, ref cursors, dynamic SQL, and DBMS packages (Strictly Required).

Advanced SQL & Data Architecture: 10+ years of proven expertise in advanced SQL, query optimization, data architecture, database design, and normalized/de-normalized data modeling (Strictly Required).

Data Warehousing & Performance Tuning: Demonstrated experience in data warehouse design and development, database performance tuning, and process automation (Strictly Required).

Requirements-to-Design Translation: Proven track record collaborating with business analysts to translate business requirements and functional specifications into scalable application and database designs (Strictly Required).

ETL, Scripting & Reporting Tooling: Hands-on experience with Informatica for ETL workflows, Unix/Linux shell scripting, and Cognos report/dashboard development (Strictly Required).

Full-Lifecycle Software Engineering: Extensive experience working across the complete Software Development Life Cycle (SDLC), including multi-tier applications, RESTful web services, JSON/XML, Continuous Integration (CI), and production incident support (Strictly Required).

Nice-to-Have Assets:
Prior experience working with federal, provincial, or broader public-sector healthcare providers and clinical IT systems (such as client/provider registries or immunization platforms).

Familiarity with healthcare data exchange standards (HL7 / FHIR) and Java web service integrations.

Knowledge of digital accessibility standards (WCAG / AODA) and formal enterprise architecture governance processes.

Summary
If you're interested in the "Senior Software Developer" role based in Toronto, we encourage you to apply online at www.randstad.ca.

Only qualified candidates will be contacted for the next steps. We look forward to hearing from you!

Randstad Canada is committed to fostering a workforce reflective of all peoples of Canada. As a result, we are committed to developing and implementing strategies to increase the equity, diversity and inclusion within the workplace by examining our internal policies, practices, and systems throughout the entire lifecycle of our workforce, including its recruitment, retention and advancement for all employees. In addition to our deep commitment to respecting human rights, we are dedicated to positive actions to affect change to ensure everyone has full participation in the workforce free from any barriers, systemic or otherwise, especially equity-seeking groups who are usually underrepresented in Canada's workforce, including those who identify as women or non-binary/gender non-conforming; Indigenous or Aboriginal Peoples; persons with disabilities (visible or invisible) and; members of visible minorities, racialized groups and the LGBTQ2+ community.

Randstad Canada is committed to creating and maintaining an inclusive and accessible workplace for all its candidates and employees by supporting their accessibility and accommodation needs throughout the employment lifecycle. We ask that all job applications please identify any accommodation requirements by sending an email to accessibility@randstad.ca to ensure their ability to fully participate in the interview process.

This posting is for existing and upcoming vacancies.

Apply on randstad.ca About employer

More about this job

Responsibilities

The Senior Software Developer at Randstad Canada will design, build and tune Oracle databases, PL/SQL code and data warehouse pipelines. The role also translates business requirements into designs, supports production incidents and builds Cognos reports.

Requirements

Candidates need 10+ years of hands-on Oracle (12c+) and PL/SQL experience, advanced SQL and data modelling skills, and data warehousing and performance tuning experience. They also need Informatica, Unix/Linux scripting and Cognos experience.

Skills

Oracle Database
Oracle 12c
PL/SQL
Stored procedures
Packages
Triggers
Ref cursors
Dynamic SQL
DBMS packages
Advanced SQL
Query optimization
Database design
Data modelling
Normalization
Data warehousing
Performance tuning
Informatica
ETL
Unix
Linux
Shell scripting
Cognos
Framework Manager
Report Studio
Query Studio

Keywords

Oracle Database
Oracle 12c
PL/SQL
SQL
Informatica
ETL
data warehouse
OLAP
OLTP
performance tuning
Unix
Linux
shell scripting
Cognos
Framework Manager
Report Studio
Query Studio
RESTful web services
JSON
XML

Seniority

Senior

Tools

Oracle Database
Informatica
Cognos
Unix
Linux

Languages

English

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Work requirements

Jobs in Canada