Jobs in Canada

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Added 7 mins ago
Building Inspector I (18-months contract)
The Corporation of the City of Markham
Markham, ON
$87,577 to $97,763 CAD / year
Full-time · Temporary
Communication: Communicates in a clear, professional and respectful way; demonstrates active listening.
Added 22 mins ago
COS Supervisor
BoF Careers
Mississauga, ON
Full-time
Eager to Learn: Open to feedback and actively seek out opportunities for personal and professional development.
Added 22 mins ago
Occupational Therapist, Adult
Mount Sinai Hospital (Toronto), Sinai Health
Toronto, ON · Greater Toronto Area, Canada
$47.53 to $59.29 CAD / hour
Contract
…environment gives you the ideal balance of unit-level specialization, professional development, and broad clinical…
Added 22 mins ago
Services Delivery Manager, ISG - Canada
Lenovo
Markham, ON
$92,000 to $140,990 CAD / year
Support service contract governance and billing accuracy.
Added 22 mins ago
Engineering Assistant IV (T)
City of Vancouver
Vancouver, BC
Reviews consultants’ drawings, specifications and contract documents to ensure conformance to project objectives and requirements.
Added 22 mins ago
Civil Engineer I
City of Vancouver
Vancouver, BC
Bachelor’s degree in Civil or Water Resources Engineering with a Professional Engineer designation and minimum of four years’ related experience in municipal civil infrastructure planning,…
Added 53 mins ago
Building Inspector I (18-months contract)
City of Markham
Markham, ON
$87,577 to $97,763 CAD / year
Contract
Communication: Communicates in a clear, professional and respectful way; demonstrates active listening.
Added 1 hour ago
Bid Manager
Pomerleau
Montreal, QC
…construction, legal affairs, as well as external resources such as professional firms, long‑term asset management providers, and JV partners when…
Added 1 hour ago
Mortuary Assistant - Pathology
NHS Ayrshire & Arran
Saskatoon, SK
Full-time
…Royal Hospital. The Mortuary service is provided by various professional groups including medical staff, Anatomical Pathology Technologists, Mortuary Assistants and Clerical Officers. The…
Added 1 hour ago
Mortuary Assistant - Pathology
NHS Scotland
Saskatoon, SK
Full-time
…Royal Hospital. The Mortuary service is provided by various professional groups including medical staff, Anatomical Pathology Technologists, Mortuary Assistants and Clerical Officers. The…
Added 1 hour ago
Post-Harvest Shift Lead
Aurora Cannabis Inc.
Mount Currie 6, BC
Full-time
Employment Type: Full time, Contract Employment
Added 1 hour ago
Family Practitioner/General Practitioner
Health Match BC
Kelowna, BC
Full-time
Comprehensive Geriatric Assessment, customized inter-professional care planning with the patient and their caregiver/family, personalized interventions, short-term follow-up and…
Added 1 hour ago
Family Practitioner/General Practitioner
Health Match BC
Kelowna, BC
Full-time
Our recently renovated clinics offer a professional, stylish environment equipped with cutting-edge technology.
Added 1 hour ago
Hospitalist
Health Match BC
Williams Lake, BC
Full-time
…opportunities are endless, apply today and discover the rewards of professional and personal…
Added 1 hour ago
Family Practitioner/General Practitioner
Health Match BC
Lillooet, BC
Full-time
The First Nations Health Authority is a diverse and transformational health organization of professional, innovative, and dedicated team members and leaders.
Added 1 hour ago
Hospitalist
Health Match BC
Williams Lake, BC
Full-time
…opportunities are endless, apply today and discover the rewards of professional and personal…
Added 1 hour ago
Family Practitioner/General Practitioner
Health Match BC
Williams Lake, BC
Full-time
The First Nations Health Authority is a diverse and transformational health organization of professional, innovative, and dedicated team members and leaders.
Added 1 hour ago
Family Practitioner/General Practitioner
Health Match BC
Kelowna, BC
Full-time
…Central Okanagan Hospice House is a 24 bed Hospice, staffed by professional and specialty trained care staff. Admission to Hospice House is for patients that meet the IH regional criteria…
Added 1 hour ago
Contract Accountant
Thrive Housing and Support
Peterborough, ON
Full-time
Sound professional judgment and discretion when handling confidential financial information.
Added 1 hour ago
Family Practitioner/General Practitioner
Health Match BC
Kamloops, BC
Full-time
Royal Inland Hospital (RIH) Offers a Collaborative Environment That Values Professional Excellence And Work-life Balance. We Are Seeking Dedicated Family Physicians With Obstetrical…
Added 1 hour ago
Family Practitioner/General Practitioner
Health Match BC
Kamloops, BC
Full-time
Royal Inland Hospital (RIH) offers a collaborative environment that values professional excellence and work-life balance. We are seeking dedicated Family Physicians with Obstetrical…
Added 1 hour ago
Family Practitioner/General Practitioner
Health Match BC
Abbotsford, BC
Full-time
36 Family Physician Clinics: With a diverse range of clinics, Abbotsford offers numerous opportunities for locum physicians to find the perfect fit for their professional goals.
Added 1 hour ago
Hospitalist
Health Match BC
Kamloops, BC
Full-time
…comprehensive onboarding, interdisciplinary collaboration, and ongoing professional development to help you thrive in your…
Added 1 hour ago
Family Practitioner/General Practitioner
Health Match BC
Abbotsford, BC
Full-time
36 Family Physician Clinics: With a diverse range of clinics, Abbotsford offers numerous opportunities for locum physicians to find the perfect fit for their professional goals.
Added 1 hour ago
Family Practitioner/General Practitioner
Health Match BC
Abbotsford, BC
Full-time
36 Family Physician Clinics: With a diverse range of clinics, Abbotsford offers numerous opportunities for locum physicians to find the perfect fit for their professional goals.

Aarorn Technologies Inc

Database Developer

Toronto, ON, Canada

Pay: $45 CAD / hour
Job type: Contract
Apply by: Mar 31, 2027
Experience: 8+ years of experience in database development, with a strong focus on Oracle, Cassandra, and Spark.
Posting language: English
Posted: Oct 2, 2026

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Original job description

Job Title: Database Developer

Location: Toronto, ON (3x onsite a week)

Employment Type: Contract

Pay Rate: CAD$45/HR INC

Key Responsibilities

Design and develop database schemas, tables, stored procedures, functions, and other database objects for Oracle, Cassandra, and Spark environments.

Develop logical and physical data models that meet business requirements and ensure data integrity, consistency, and performance.

Design, develop, and implement ETL (Extract, Transform, Load) processes to move data between different database platforms and data sources, using tools like Apache Spark, Apache NiFi, or Oracle Data Integrator.

Optimize database performance by identifying and resolving performance bottlenecks, tuning queries, and implementing indexing strategies.

Write complex SQL queries and NoSQL queries (CQL) to retrieve, manipulate, and analyze data.

Develop Spark applications using Python to process large datasets and perform data analytics.

Design and implement data warehousing solutions using Oracle, Cassandra, and Spark, following best practices for data modeling, ETL, and reporting.

Implement data security measures to protect sensitive data, including encryption, access control, and auditing.

Collaborate with data architects, data scientists, application developers, and other stakeholders to understand business requirements and develop appropriate data solutions.

Create and maintain technical documentation for database designs, ETL processes, and other data-related solutions.

Stay up to date with the latest trends and technologies in database development, data warehousing, and big data processing.

Qualifications

Bachelor's or master s degree in computer science, Engineering, or a related field.

8+ years of experience in database development, with a strong focus on Oracle, Cassandra, and Spark.

Expert-level knowledge of Oracle database architecture and development, including SQL, PL/SQL, and performance tuning.

Strong understanding of Cassandra NoSQL database, including data modeling, CQL, and cluster administration.

Proficiency in Apache Spark, including Spark SQL, Spark Streaming, and Spark MLlib.

Experience with ETL tools and techniques.

Solid understanding of data warehousing principles and best practices.

Experience with data modeling tools and techniques.

Strong analytical and problem-solving skills.

Excellent communication and interpersonal skills.

Ability to work independently and as part of a team.

Oracle Certified Professional (OCP) or equivalent certification is a plus.

Experience with cloud-based database services (e.g., AWS RDS, Azure SQL Database, Google Cloud Spanner) is a plus.

Disclaimer: AI tools may assist in the recruitment process; however, all hiring decisions are made by the recruitment team based on a comprehensive evaluation of candidates.

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More about this job

Responsibilities

Design and develop database schemas, data models, database objects, and ETL processes across Oracle, Cassandra, and Spark environments. Optimize database performance, build Spark applications for large-scale data processing, implement data security, and document solutions in collaboration with stakeholders.

Requirements

Requires a bachelor's or master's degree in computer science, engineering, or a related field, and 8+ years of database development experience focused on Oracle, Cassandra, and Spark. Candidates should have strong Oracle SQL and PL/SQL expertise, Cassandra data modeling and CQL knowledge, Spark proficiency, and experience with ETL, data warehousing, and data modeling.

Skills

Oracle Database Development
Cassandra
Apache Spark
SQL
PL/SQL
CQL
Python
ETL
Data Modeling
Database Performance Tuning
Data Warehousing
Spark SQL
Spark Streaming
Spark MLlib
Apache NiFi
Oracle Data Integrator

Visa sponsorship

Not detected in the job text

Keywords

Oracle
Cassandra
Apache Spark
SQL
PL/SQL
CQL
Python
Apache NiFi
Oracle Data Integrator
ETL
Data Modeling
Logical Data Models
Physical Data Models
Database Performance Tuning
Indexing
Spark SQL
Spark Streaming
Spark MLlib
Data Warehousing
Data Security
Encryption
Access Control
Auditing
Oracle Certified Professional
AWS RDS
Azure SQL Database
Google Cloud Spanner
Big Data Processing
Database Development

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