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Added 9 mins ago
Principal System Engineer
Backbase
Toronto, ON
Cloud Native Mastery: Expert-level production experience with self-managed Kubernetes, Azure services, advanced Linux systems administration, and deep network routing/troubleshooting.
Added 9 mins ago
C
Senior Project Manager – Operational Systems & Digital Solutions
CIMA+
Mississauga, ON · Toronto, Ontario
- $125,440 to $172,440 CAD / year
- Full-time
…integration, software, APIs and middleware, data platforms, cloud and on-premises infrastructure, networks and cybersecurity. We are not looking for a specialist in every technology layer,…
Added 24 mins ago
NV
Senior Business Analyst (ID#5597)
New Value Solutions
Vancouver, BC · Greater Vancouver, BC
- Contract
…part-time Senior Business Analyst to support two major network infrastructure and cybersecurity modernization initiatives within a large…
Added 24 mins ago
XI
Director of Procurement
Xplore Inc.
Markham, ON
- Full-time
Category management. Lead category strategies across network infrastructure (fibre, fixed wireless, satellite capacity and ground equipment, towers and structures, civil works and…
Added 24 mins ago
BE
Manager, Application Development
BC Energy Regulator
Fort St. John, BC
- Full-time
Oversee the management, maintenance, and continuous improvement of development tools, platforms, and infrastructure, including source control, development environments, continuous…
Added 53 mins ago
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Pega Lead System Architect @ Toronto, Canada Hybrid
BURGEON IT SERVICES
Toronto, ON
- Contract
The Pega Lead System Architect is responsible for the end-to-end architecture, technical design, development governance, and successful implementation of enterprise applications built on…
Added 53 mins ago
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SAS Administrator
Confiar Services
Toronto, ON
- $60 to $65 CAD / hour
- Contract
Lead troubleshooting and root cause analysis for platform, infrastructure, performance, security, and application integration issues.
Added 53 mins ago
C
Senior Project Manager – Operational Systems & Digital Solutions
CIMA+
Toronto, ON
- $125,440 to $172,440 CAD / year
- Full-time
…integration, software, APIs and middleware, data platforms, cloud and on-premises infrastructure, networks and cybersecurity. We are not looking for a specialist in every technology layer,…
Added 53 mins ago
C
Senior Project Manager – Operational Systems & Digital Solutions
CIMA+
Mississauga, ON
- $125,440 to $172,440 CAD / year
- Full-time
…integration, software, APIs and middleware, data platforms, cloud and on-premises infrastructure, networks and cybersecurity. We are not looking for a specialist in every technology layer,…
Added 53 mins ago
MP
Manager, DevOps
Michael Page
Markham, ON
- $110,000 to $115,000 CAD / year
- Full-time
Lead the Application Support and DevOps function responsible for the stability, availability, and continuous improvement of digital applications, travel systems, MuleSoft integrations, and…
Added 1 hour ago
S
Software Engineering SMTS
Salesforce
Vancouver, BC · Canada - Vancouver
- Full-time
Infrastructure-as-code experience with Terraform for cloud resources (IAM, object storage, messaging, block storage)
Added 1 hour ago
AI
Senior Oracle Database Administrator
Apptoza Inc.
Toronto, ON
- Contract
5.Partner with infrastructure and cloud teams to design| test| and execute on-premises to AWS cloud database migrations.
Added 1 hour ago
NC
IT Service Management Manager – MSP Governance & Major Incident
National Consultants Professionals Ltd
Toronto, ON
- $115,000 to $130,000 CAD / year
- Full-time
This role is accountable for ensuring resilient, high-quality IT services across Microsoft 365, Google Cloud Platform workloads, third-party SaaS platforms, and core infrastructure. The…
Added 1 hour ago
S
Data Architect - Canada Region
Slalom
Vancouver, BC · Greater Vancouver Metropolitan Area
- Full-time
Cloud platforms and modern data ecosystems, including AWS, Azure, GCP, Databricks, Snowflake, and related services.
Added 1 hour ago
Principal Software Engineer - Agentic Engineering Platform
OpenTable
Toronto, ON
…Today, fragmented context, inconsistent standards, and legacy infrastructure limit what agents can complete on their own. You'll build shared cloud agents and tools that connect company…
Added 1 hour ago
Principal Software Engineer - Agentic Engineering Platform
OpenTable
Toronto, ON
…Today, fragmented context, inconsistent standards, and legacy infrastructure limit what agents can complete on their own. You'll build shared cloud agents and tools that connect company…
Added 1 hour ago
L
Infrastructure Solution Architect
LotusFlare
Toronto, ON
- Full-time
From this initial work, LotusFlare’s mission now is to design, build and continuously advance a cloud-native digital commerce and monetization platform that simplifies technology and…
Added 1 hour ago
B
Senior Data Engineer (Databricks Focused)
BDO
Vancouver, BC · Mississauga, ON · Oakville, ON · Ottawa, ON · Toronto, ON
- Full-time
…Engineer (Databricks Focused) to join our Technology Advisory Services practice. This role blends technical leadership with hands-on data engineering, focusing on delivering scalable,…
Added 1 hour ago
B
Senior Data Engineer (Databricks Focused)
BDO
Calgary, AB · AB · Winnipeg, MB · Halifax, NS · Montreal, QC
- Full-time
…Engineer (Databricks Focused) to join our Technology Advisory Services practice. This role blends technical leadership with hands-on data engineering, focusing on delivering scalable,…
Added 1 hour ago
L
Infrastructure Solution Architect
LotusFlare
Toronto, ON
- Full-time
From this initial work, LotusFlare’s mission now is to design, build and continuously advance a cloud-native digital commerce and monetization platform that simplifies technology and…
Added 1 hour ago
ES
Senior Oracle Application Database Administrator
Epsilon Solutions Ltd.
Toronto, ON
- Full-time
Partner with infrastructure and cloud teams to design, test, and execute on-premises to AWS cloud database migrations.
Added 1 hour ago
DM
Lead Software Developer / Développeur(euse) logiciel principal(e)
DIAGNOS Medical Systems (TSX: ADK.V)
Brossard, QC
- Full-time
Oversee containerized application deployments and cloud infrastructure health (Kubernetes), ensuring reliable scaling and uptime for AI model inference and image processing pipelines.
Added 2 hours ago
FI
Senior Oracle DBA
Flexstaf I.T. Inc.
Toronto, ON · Greater Toronto Area, Canada
- Contract
Partner with infrastructure and cloud teams to design and execute on-premises to AWS database migrations.
Added 2 hours ago
AI
Senior Database Administrator (Oracle Application DBA / Cloud)
Astra-North Infoteck Inc. ~ Conquering today’s challenges, achieving tomorrow’s vision!
Toronto, ON
- Full-time
Partner with infrastructure and cloud teams to design, test, and execute on-premises to AWS cloud database migrations.
Added 2 hours ago
1
Infrastructure Architect
123Dentist
Toronto, ON
- $150,000 to $175,000 CAD / year
- Full-time
The Infrastructure Architect is the senior technical engineer for 123Dentist’s server, identity, cloud, and network infrastructure, combining deep hands-on design and engineering with…

Apptoza Inc.

Senior Oracle Database Administrator

Toronto, ON, Canada

Contract

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Job details

Job type: Contract
Apply by: Dec 3, 2026
Posting language: English
Posted: Nov 3, 2026

Original job description

Position: Senior Oracle DBA

Location: Toronto, ON (3 days hybrid)

Contract: Long term (12+ months)

Role Descriptions:

2.Analyze execution plans| perform SQL query tuning| and optimize index structures to eliminate bottlenecks in high-throughput transactional environments.

5.Partner with infrastructure and cloud teams to design| test| and execute on-premises to AWS cloud database migrations.

6.Participate in database capacity planning| failover drills| and disaster recovery design.

7.Support production deployment and other maintenance activities over weekend and after office hours on weekdays as needed.

Required Exp

1 - 8-10 years of experience in Oracle Database Administration 2.Oracle Application DBA Expertise 8 years specializing in Oracle Database (12c19c) application support| advanced PLSQL programming| execution plan analysis| and performance diagnostics (AWR| ASH| ADDM).

3.AWS Cloud Databases Practical experience administering managed database services including Amazon RDS (Oracle PostgreSQL) and Amazon Aurora.

4.PostgreSQL Hands-on working knowledge of PostgreSQL architecture| schema design| and performance optimization.

5.Cloud Migration Experience Strong| proven track record of migrating on-premises databases to AWS environments (using tools such as AWS DMS| SCT| or native utilities).

6.Collaboration Release Management Solid background in CICD integration for database deployments and working alongside Agile engineering teams.

7.Ability to work with offshore teams for maintenance and production support activities

NICE TO HAVE skills

Experience with Oracle Exadata administration and performance tuning features (Smart Scan| Hybrid Columnar Compression).Proficiency in shell scripting (Bash) and automation using Python.Relevant AWS (e.g.| AWS Certified Database Specialty) or Oracle certifications

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More about this job

Responsibilities

Collaborate with application development teams on database design, PL/SQL development, performance tuning, release automation, and schema migrations across environments. Monitor production database health, support AWS migrations, and contribute to capacity planning, failover, disaster recovery, and after-hours maintenance.

Requirements

Requires 8–10 years of Oracle Database Administration experience, including Oracle 12c/19c application support, advanced PL/SQL, and performance diagnostics using AWR, ASH, and ADDM. Candidates should also have practical AWS managed database and PostgreSQL experience, proven on-premises-to-AWS migration experience, CI/CD and release management experience, and the ability to collaborate with offshore teams.

Skills

Oracle Database Administration
Oracle Application DBA
PL/SQL Programming
SQL Query Tuning
Execution Plan Analysis
Performance Diagnostics
Amazon RDS
Amazon Aurora
PostgreSQL
AWS Database Migration
AWS DMS
AWS Schema Conversion Tool
CI/CD
Database Release Management
Disaster Recovery
Shell Scripting

Visa sponsorship

Not detected in the job text

Keywords

Oracle Database
Oracle 12c
Oracle 19c
Oracle Application DBA
PL/SQL
SQL Query Tuning
Execution Plans
AWR
ASH
ADDM
Amazon RDS
Amazon Aurora
PostgreSQL
AWS
AWS DMS
AWS Schema Conversion Tool
CI/CD
Database Release Automation
Schema Migration
Data Modeling
Schema Design
Database Performance Optimization
Capacity Planning
Failover
Disaster Recovery
Oracle Exadata
Smart Scan
Hybrid Columnar Compression
Bash

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