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Junior Database Developer Jobs in Ontario (NOW HIRING)

The Citco Group Limited

Database Administrator

Toronto, ON · On-site

CA$85K - CA$105K/yr

The successful candidate will work with a team of database engineers and is primarily tasked with ... Lead and mentor junior database administrations * Coordinate with other IT teams and stakeholders

Rakuten Kobo

Database Engineer

Toronto, ON

Mentorship & Learning Participate in knowledge sharing, provide technical guidance to junior team ... , Sr DBA, Systems Architect or a mix of these roles, preferably within a high-transaction ...

Marqeta, Inc.

Senior Cloud Database Engineer

Toronto, ON · On-site

$116 - $145/hr

As Marqeta's Senior Cloud Database Engineer, you will join our Cloud Database Engineering team ... Mentoring junior engineers and contributing to team standards. Who You Are * 5+ years experience as ...

Linamar

Application Developer, Junior

Guelph, ON

Job Title: Application Developer, Junior - Finance Systems Job Summary The Junior Application ... Microsoft development and database certifications are recommended. Required Skills/Experience

Magna

Junior Full Stack Developer Coop

Milton, ON · On-site

The [Junior Full Stack Developer - coop] role is to help plan, design, develop, test, launch, and ... Knowledgeable in the use of at least one modern Database Management System * Experience working ...

Imagine Communications

Junior SQL Developer

Toronto, ON · On-site

CA$80K - CA$100K/yr

A Bit About The Role We're looking for a Junior SQL Developer to join our data team. Your day-to ... Understanding of relational database and data-warehousing fundamentals (tables, keys, dimensions vs ...

StackandCo

Database design and implementation on both relational and non\-relational platforms \n * Good verbal and written communication skills \n \n \n \n \n \n

BWXT

Manufacturing Engineer, Junior

Cambridge, ON · On-site

Position Overview: As our Manufacturing Engineer, Junior, you will establish and refine ... Maintain databases for tooling, consumables, and shop practices * Participate in pre-manufacturing ...

BWXT

Manufacturing Engineer, Junior

Cambridge, ON · On-site

Position Overview: As our Manufacturing Engineer, Junior, you will establish and refine ... Maintain databases for tooling, consumables, and shop practices * Participate in pre-manufacturing ...

BWXT

Manufacturing Engineer, Junior

Cambridge, ON · On-site

Position Overview: As our Manufacturing Engineer, Junior, you will establish and refine ... Maintain databases for tooling, consumables, and shop practices * Participate in pre-manufacturing ...

Virtusa

Senior Java Developer

Mississauga, ON

... ability to mentor junior engineers while collaborating with cross-functional teams. Key ... databases (e.g., PostgreSQL, Oracle, MySQL) Familiarity with Git and modern CI/CD pipelines ...

Virtusa

Senior Java Developer

Mississauga, ON

... ability to mentor junior engineers while collaborating with cross-functional teams. Key ... databases (e.g., PostgreSQL, Oracle, MySQL) Familiarity with Git and modern CI/CD pipelines ...

Virtusa

Senior Java Developer

Mississauga, ON

... ability to mentor junior engineers while collaborating with cross-functional teams. Key ... databases (e.g., PostgreSQL, Oracle, MySQL) Familiarity with Git and modern CI/CD pipelines ...

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Junior Database Developer information

What is the difference between Junior Database Developer vs Database Administrator?

AspectJunior Database DeveloperDatabase Administrator
Required CredentialsTypically a bachelor's degree in computer science or related field; some certifications like Microsoft SQL Server or Oracle are commonSimilar educational background; certifications like Oracle DBA, Microsoft Certified: Azure Database Administrator are often preferred
Work EnvironmentMostly involved in coding, designing, and developing databases; works closely with developers and analystsFocuses on maintaining, backing up, and securing databases; interacts with IT teams and end-users
Employer & Industry UsageUsed in software development companies, tech firms, and organizations with database needsCommon in large enterprises, financial institutions, and healthcare organizations requiring database management

While both roles require knowledge of database systems and similar certifications, Junior Database Developers primarily focus on creating and optimizing databases, whereas Database Administrators handle ongoing maintenance, security, and performance management.

What are Junior Database Developers?

Junior Database Developers are entry-level professionals who assist in designing, developing, and maintaining databases for organizations. They work under the supervision of senior database developers or administrators, helping with tasks such as writing SQL queries, troubleshooting data issues, and supporting database updates. Their role is crucial for ensuring data integrity, optimizing performance, and supporting the data needs of various departments. Junior Database Developers often collaborate with software developers and IT teams to implement database solutions. This position is typically suited for recent graduates or individuals with some programming and database experience.

What are the typical challenges a Junior Database Developer might face when starting out in the role?

As a Junior Database Developer, you may find it challenging to work with unfamiliar database management systems, optimize queries for performance, and understand complex data models. Adapting to a team environment, where you collaborate closely with senior developers, data analysts, and software engineers, is also common. Additionally, learning best practices for data security and consistency can be demanding, but overcoming these challenges provides valuable experience and growth opportunities.

What are the key skills and qualifications needed to thrive as a Junior Database Developer, and why are they important?

To thrive as a Junior Database Developer, you need a solid understanding of database concepts, SQL programming, and a relevant degree in computer science or a related field. Familiarity with database management systems like MySQL, SQL Server, or Oracle, as well as version control tools such as Git, is typically required. Strong analytical thinking, attention to detail, and effective communication skills help you troubleshoot issues and collaborate with team members. These skills and qualifications are crucial for building reliable databases, ensuring data integrity, and supporting organizational data needs.
What are the most commonly searched types of Database Developer jobs in Ontario? The most popular types of Database Developer jobs in Ontario are:
What cities in Ontario are hiring for Junior Database Developer jobs? Cities in Ontario with the most Junior Database Developer job openings:
Junior Database Developer jobs near you
Infographic showing various Junior Database Developer job openings in Ontario as of July 2026, with employment types broken down into 87% Full Time, 8% Part Time, 1% Temporary, and 4% Contract. Highlights an 87% Physical, 3% Hybrid, and 10% Remote job distribution.

Database Administrator

The Citco Group Limited

Toronto, ON • On-site

CA$85K - CA$105K/yr

Full-time

Posted 24 days ago

Job description

About Citco

Since the 1940s Citco has provided specialist financial services to alternative investment funds, investors, multinationals and private clients worldwide. With over 13,000 employees in 45 countries we pioneer innovative solutions that meet our clients' evolving needs, and deliver exceptional service. 

Our continuous investment in learning means our people are among the best in the industry. And our corporate social responsibility programs provide meaningful and fulfilling work in the community.

A career at Citco isn't just a job - it's an opportunity to excel in an environment that genuinely supports your personal and professional development. For more information about Citco, please visit www.citco.com. 

About the Role: 

Citco seeks a Database Administrator within the Database Team. The successful candidate will work with a team of database engineers and is primarily tasked with supporting the entire database footprint both on-prem and in the cloud. The position is responsible for ensuring the team operates effectively and efficiently, is properly motivated and ensures customer expectations are managed. This role interacts with most functions across the Citco IT group. The ideal candidate will have a proven track record of building large, scalable infrastructure, and is a creative thinker, problem solver, teacher and learner. This is a hands-on technical role with experience of Oracle databases essential, with additional knowledge of SQL Server or PostgreSQL being a plus. The focus of this role is to ensure optimal database performance, security, and reliability across our organization.

About You:

  • You must have 5-8 years of database administration experience
  • Extensive experience with major database platforms (e.g., Oracle, SQL Server, PostgreSQL, MySQL)
  • Proficiency in: Oracle Exadata Database Appliance, Oracle Database Appliance (ODA), Oracle Real Application Clusters (RAC), Oracle Grid Infrastructure, Oracle Data Guard, Oracle Automatic Storage Management (ASM), Oracle Enterprise Manager Cloud Control (OEM)
  • Installation, upgrade, monitoring, and support of Oracle Databases 19c and newer versions
  • Knowledge of Oracle GoldenGate implementation and maintenance
  • Linux/UNIX scripting proficiency
  • Autosys, Stonebranch or other workload scheduling tool expertise required
  • Working knowledge of modern automation tools (Ansible, Rundeck)
  • Strong knowledge of database security and compliance
  • Experience with data modelling and database design
  • Problem-solving and analytical abilities
  • Performance tuning and optimization expertise
  • Excellent knowledge of SQL and PL/SQL programming.
  • Experience with database backup and recovery strategies, including disaster recovery planning.

  • Strong understanding of database security best practices and compliance requirements.

Education:

  • Bachelor's degree or technical qualification prevalent to the position
  • Certifications such as Oracle Certified Professional (OCP), Microsoft Certified: Azure Database Administrator Associate, or PostgreSQL Certified Associate.
  • AWS Cloud Practitioner or Associate Level certification [or ability to obtain within 6 months] with proficiency in: RDS databases (Oracle, PostgreSQL, Aurora), CloudWatch monitoring, CloudFormation, Lambda functions, AWS DMS and DirectConnect, Python, JSON, YAML programming experience, Oracle Cloud Services expertise, and experience with multi-cloud environments 

Salary Range: CAD $85,000 to CAD $105,000

  • This posting is for not an existing vacancy; we are building a candidate pool for future opportunities

Our Benefits

Your well-being is of paramount importance to us, and central to our success. We provide a range of benefits, training and education support, and flexible working arrangements to help you achieve success in your career while balancing personal needs. Ask us about specific benefits in your location.

We embrace diversity, prioritizing the hiring of people from diverse backgrounds. Our inclusive culture is a source of pride and strength, fostering innovation and mutual respect.

Citco welcomes and encourages applications from people with disabilities. Accommodations are available upon request for candidates taking part in all aspects of the selection.

Your Role:

Database Architecture & Design

  • You will design and implement database architectures
  • Establish database standards and best practices

  • Ensure database security, performance, and reliability


     

Team Engagement

  • Lead and mentor junior database administrations
  • Coordinate with other IT teams and stakeholders
  • Participate in major incidents and their resolution
  • Foster a culture of continuous improvement and knowledge sharing
     

Technical Expertise

  • Oversee database maintenance, backup, and recovery procedures
  • Optimize database performance and troubleshoot complex issues
  • Implement high-availability and disaster recovery solutions
     

Strategic Planning

  • Plan database capacity and scalability requirements
  • Evaluate and recommend new database technologies
  • Develop long-term database strategies aligned with business goals

Apply