Jobs in Canada

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Added 21 days ago
Senior Software Engineer
Scotiabank
Toronto, ON
2) 6+ years experience as a Java developer with a preference for Java 8/Spring, web-based information technology principles, and system integration methodologies and standards.
Added 21 days ago
M
Staff Software Engineer - Onboarding and Migrations
Marqeta
Remote, Canada
- Full-time
- Remote
The Program Experience team is looking for a Staff Software Engineer to help scale our Customer Migration Platform at Marqeta. We are looking for an experienced and strong engineer with…
Added 21 days ago
AT
Java Developer
Arkhya Tech Inc.
Toronto, ON
- Contract
Job Title: Senior Software Engineer – Java / Apache Flink (Hybrid)
Added 21 days ago
AS
Site Reliability Engineer
Ardent SoftSol Inc.
Toronto, ON
- $43 to $45 CAD / hour
- Contract
Have prior experience on understanding code on Java Springboot
Added 21 days ago
QT
Senior Database Performance Engineer
QHR Technologies
Kelowna, BC
- Full-time
The Software Engineering department is seeking a Senior Database Performance Engineer.
Added 21 days ago
E
Java Software Engineer
E-IT
Toronto, ON
- Contract
Must have solid experience with Java stack and build tools like GIT, tools for code quality and coverage
Added 21 days ago
SI
Full Stack Engineer
Stelvio Inc.
Saskatoon, SK
- Full-time
Proficiency in languages such as Java, C#, Python or JavaScript.
Added 21 days ago
Senior Software Engineer - Product Security
Faire
Toronto, ON · Waterloo, ON
Specific Workplace and Information Technology positions may require onsite attendance 5 days per week as will be indicated in the job posting
Added 21 days ago
IS
DevOps Engineer
IS3 Solutions
Toronto, ON
- Contract
We are seeking a highly motivated Cloud DevOps Engineer with deep expertise in cloud-native platforms, Kubernetes, container security, Infrastructure as Code (IaC), and CI/CD automation.…
Added 21 days ago
VC
Jr. QA Engineer
Veriforce Canada
Montreal, QC
- Full-time
As a Junior Software Development Engineer in Test (SDET), you will support the delivery of reliable, high-quality software by performing manual testing and contributing to automated…
Added 21 days ago
CO
Staff Software Engineer - Capital One Travel Tech - Full-stack / développeur principal ou développeuse principale en logiciels
Capital One
Toronto, ON
- Full-time
161 Bay Street (93021), Canada, Toronto,Toronto, Ontario,Staff Software Engineer - Capital One Travel Tech - Full-stack / développeur principal ou développeuse principale en logiciels
Added 21 days ago
IG
Full Stack Engineer
Insight Global
Toronto, ON
- $60 to $68 CAD / hour
- Contract
Experience with Java and Spring Boot for back-end application and microservices design.
Added 21 days ago
Software Engineer
Eastlink
Halifax, NS
Work Location: 6080 Young Street, Halifax, NS (On-site, 5 days per week)
Added 21 days ago
B
Senior Java Software Engineer
Bounteous
Montreal, QC
- Full-time
We are looking for a strong Java Developer with hands-on experience in Java, Spring Boot, Microservices, SQL, and AWS. The ideal candidate should have experience building scalable…
Added 22 days ago
T
Solutions Design IT Specialist
TD
Toronto, ON
- Full-time
This role is for an engineer who goes beyond using Java and Spring APIs. You understand how Java works internally: streams, threads, concurrency primitives, memory management, garbage…
Added 22 days ago
V
Application Developer
Virtusa
Toronto, ON
- Full-time
IBM Safer Payment SME - Senior Lead Software Engineer
Added 23 days ago
A
SDET (Intermediate)
Actalent
Waterloo, ON
- $40 to $50 CAD / hour
- Contract
This Software Development Engineer in Test (SDET) role focuses on designing, developing, and maintaining automated test scripts and tools in Python to validate new features for advanced…
Added 23 days ago
A
Lab Engineer (Intermediate)
Actalent
Waterloo, ON
- $33 to $38 CAD / hour
- Contract
As an intermediate Lab Engineer, you will work closely with development and test teams to ensure that lab infrastructure, hardware, and automation systems reliably support continuous…
Added 23 days ago
SI
Software Engineer
Spait Infotech
Canada
- Full-time
Programming languages: Python, Java, JavaScript, C++, or C#
Added 23 days ago
SI
Quality Assurance Engineer
Spait Infotech
Canada
- Full-time
Basic programming knowledge in Python, Java, or JavaScript.
Added 23 days ago
TW
Senior Site Reliability Engineer
The Walt Disney Company
Vancouver, BC
- $120,700 to $161,800 CAD / year
- Full-time
The Senior Site Reliability Engineer will drive the design, implementation, and operation of reliable, scalable infrastructure across the studio. This role partners closely with team…
Added 23 days ago
F
Staff Software Engineer, Quality & Reliability Platform
fb9e7da1-2660-46a2-9ffc-154a66684510
Toronto, ON
- Full-time
BuildOps is looking for a Staff Software Engineer to set and drive our company-wide technical strategy for building, shipping, and operating reliable software.
Added 23 days ago
F
Staff Software Engineer, Quality & Reliability Platform
fb9e7da1-2660-46a2-9ffc-154a66684510
Toronto, ON
- Full-time
BuildOps is looking for a Staff Software Engineer to set and drive our company-wide technical strategy for building, shipping, and operating reliable software.
Added 23 days ago
CS
Software Developer
Cronometer Software Inc
Revelstoke, BC
- Full-time
Develop intelligent, data-driven services. Create and optimize backend systems and APIs (Java, Python, SQL) that deliver insights to millions of users and enable new product experiences
Added 23 days ago
WD
Senior Site Reliability Engineer
Walt Disney Animation Studios
Vancouver, BC
- $120,700 to $161,800 CAD / year
- Full-time
The Senior Site Reliability Engineer will drive the design, implementation, and operation of reliable, scalable infrastructure across the studio. This role partners closely with team…

QHR Technologies

Senior Database Performance Engineer

Kelowna, BC, Canada

Hiring Range: $110,000 - $120,000 annual · Full-time

Apply on LinkedIn About employer

Applications open in a new tab.

Job details

Pay: Hiring Range: $110,000 - $120,000 annual
Job type: Full-time
Apply by: Nov 18, 2026
Posting language: English
Posted: Oct 19, 2026

Original job description

Position Summary

The Software Engineering department is seeking a Senior Database Performance Engineer.

Our products power mission-critical workflows used by thousands of customers across Canada, with data at the center of every experience. As our platform continues to scale, we are looking for a passionate and highly skilled developer with deep SQL expertise. You must excel at diagnosing complex performance issues, optimizing SQL query execution paths, and ensuring our database servers operate at peak efficiency. You will play a critical role in keeping our systems stable, reliable, and fast as we introduce new applications, expand integrations, and evolve our backend services.

As an ideal candidate, you bring a deep understanding of Microsoft SQL Server internals, performance tuning techniques, and modern ORM frameworks such as Hibernate. You are methodical and analytical, with a strong ability to translate application behaviour - particularly within Java-based systems - into database performance insights. You thrive on troubleshooting, data-driven decision making, and building long-term solutions that prevent issues before they occur.

Success in this role means ensuring stable, well-performing database environments; establishing best practices across engineering teams; and collaborating closely with developers to promote a performance-first mindset. You will be the trusted expert for database performance, guiding teams to write efficient SQL, optimize schema designs, and tune server configurations for predictable, scalable throughput.

Competencies Critical for Success

Performance & Analysis – Diagnose and resolve complex database performance issues while analyzing SQL execution behavior to identify and implement improvements
Advocacy & Influence – Communicate database concepts clearly to developers, enabling actionable solutions and advocating proactive changes
Proactive Optimization – Drive strategies to prevent issues and deliver continuous, measurable performance gains
Technical Depth – Apply expertise across SQL Server, ORM frameworks, and Java systems to optimize application performance
Backlog Ownership – Maintain and prioritize a performance improvement backlog; determine what to own directly versus what to drive through development teams

Primary Responsibilities

Model professionalism and lead by example, promoting database best practices across engineering teams
Own database performance tuning activities including query optimization, indexing strategies, and execution plan analysis
Monitor, analyze, and tune SQL Server instances in collaboration with Infrastructure DBA’s to ensure high availability, low latency, and predictable capacity
Collaborate with Java/Hibernate teams to advise on efficient data-access patterns and ORM configuration
Support development teams by reviewing SQL-related code, database migrations, and query-heavy features
Author & submit pull requests to development teams that include SQL performance tuning changes
Drive root-cause analysis for performance degradation, slow queries, blocking, and deadlocks
Maintain comprehensive documentation for performance patterns, indexing strategies, and tuning guidelines
Participate in architectural discussions to ensure database scalability and long-term stability
Troubleshoot production issues, lead database recovery efforts, and guide teams through performance incidents & escalations
Remove operational impediments by improving tooling, observability, and database-related workflows
Work independently to investigate, develop, and deliver performance improvements end-to-end
Maintain and prioritize a dedicated database performance backlog, identifying items for self-directed delivery versus items requiring coordination with feature teams

Additional Duties and Expectations

Promote QHR’s “Blue Culture” framework to foster a collaborative, positive and efficient workplace
Contribute positively to the organization’s internal and external reputation
Demonstrate empathy, patience, and clear communication in all interactions
Adapt to changing strategic priorities, including evolution of team composition and responsibilities
Perform other duties consistent with the position, as reasonably directed by your manager

Qualifications, Education and Experience Requirements

General Requirements

A degree or diploma in Computer Science, Engineering, Information Systems, or a related field
7+ years in Database Administrator, Backend Developer, or equivalent roles with a strong focus on SQL and application performance
Proven track record of SQL performance tuning, execution plan analysis, and server optimization
Demonstrated ability to write, test, and ship production code changes independently
Experience supporting enterprise applications and large-scale data environments
Experience working collaboratively with development teams, ideally in Java environments
Experience with Agile methodologies; Scrum certification considered an asset

Technical Requirements

Experience with:

Advanced MSSQL Server performance tuning (execution plans, indexing, statistics, wait analysis)
Experience with profiling tools such as SQL Profiler, Extended Events, SolarWinds DPA and SQL Sentry
Strong SQL development skills (T-SQL, stored procedures, views, triggers)
Java ecosystem fundamentals and ORM frameworks, especially Hibernate
Understanding of how Java/Hibernate query generation affects database performance
Source control tools such as Git

Extra consideration for candidates with:

Experience with Microsoft Azure SQL or other cloud database platforms
Experience with Web Technologies such as SpringBoot
Experience optimizing CI/CD pipelines for database deployments
Experience in healthcare or other regulated data environments

Compensation and Logistics

Base salary, variable bonus established at the corporate level, and a competitive benefits package
Hiring Range: $110,000 - $120,000 annual
Final pay for this position may depend on candidate knowledge, skills, experience and location
Full-time, permanent position
Minimal travel required

QHR is a dynamic, high-growth Canadian technology company and division of Loblaw Companies Limited. Our mission is to unite Canadian Healthcare, connecting Providers and their Patients to information and each other.

Apply on LinkedIn About employer

More about this job

Responsibilities

Own database performance tuning, including query optimization, indexing, execution plan analysis, and SQL Server monitoring, while investigating and resolving production performance issues. Collaborate with Java and Hibernate development teams, deliver performance improvements through code changes, and maintain guidance and a prioritized database performance backlog.

Requirements

Requires a degree or diploma in Computer Science, Engineering, Information Systems, or a related field, plus 7 or more years in database administration, backend development, or an equivalent role focused on SQL and application performance. Candidates should have advanced SQL Server tuning expertise, strong T-SQL and production coding skills, and experience supporting enterprise applications and collaborating with development teams, ideally in Java environments.

Skills

Microsoft SQL Server Performance Tuning
SQL Query Optimization
Execution Plan Analysis
Indexing Strategies
T-SQL
Stored Procedures
SQL Server Monitoring
Java
Hibernate
Database Performance Analysis
Root-Cause Analysis
Git
Database Recovery
Agile Methodologies
Azure SQL
CI/CD Database Deployments

Benefits

Competitive Benefits Package
Variable Bonus

Visa sponsorship

Not detected in the job text

Keywords

Microsoft SQL Server
T-SQL
SQL Performance Tuning
Query Optimization
Execution Plans
Indexing
Statistics
Wait Analysis
SQL Profiler
Extended Events
SolarWinds DPA
SQL Sentry
Stored Procedures
Views
Triggers
Java
Hibernate
Git
Azure SQL
Spring Boot
CI/CD
Database Deployments
Agile
Scrum
Enterprise Applications
Database Recovery
High Availability
Deadlocks
Healthcare
Regulated Data Environments

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Work requirements

Jobs in Canada