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Added 5 days ago
P
Senior Applied AI Developer
Plusgrade
Montreal, QC · CAN - Montreal
- Full-time
…our next-generation ML and LLM platforms to drive real-time, low-latency recommendation engines at…
Added 5 days ago
AT
Java Developer
Arkhya Tech Inc.
Toronto, ON
- Contract
Job Title: Senior Software Engineer – Java / Apache Flink (Hybrid)
Added 5 days ago
QT
Senior Database Performance Engineer
QHR Technologies
Kelowna, BC
- Full-time
Monitor, analyze, and tune SQL Server instances in collaboration with Infrastructure DBA’s to ensure high availability, low latency, and predictable capacity
Added 8 days ago
M
Senior Software Engineer
Microsoft
Vancouver, BC
- Full-time
…disaggregated compute and storage architecture to deliver predictable low-latency performance, high availability, and seamless scalability at cloud…
Added 8 days ago
SI
Java Software Engineer
Smart IT Frame LLC
Mississauga, ON
- Full-time
Seeking a Senior Java Developer to design, build, and optimize high-throughput, low-latency event-driven microservices for enterprise trading platforms.
Added 8 days ago
C
FX Application Infrastructure Engineer, VIce President
Citi
Mississauga, ON
- Full-time
…at least one of these other areas: Linux, TCP/IP Networking, Low-latency Performance Engineering, Firewalls, Server…
Added 8 days ago
Senior Java Developer / Technical Lead
Capgemini
Toronto, ON
We are seeking a Senior Java Developer / Technical Lead to design and deliver secure, scalable, and high-volume banking and payment applications. The role will lead the development of Java…
Added 8 days ago
K
Senior Backend Software Engineer – Data Platform
Kaseya
Toronto, ON
- $205,000 to $240,000 CAD / year
- Full-time
Experience designing high-throughput or low-latency systems
Added 8 days ago
KC
Senior Backend Software Engineer – Data Platform
Kaseya Careers
Toronto, ON
- $205,000 to $240,000 CAD / year
Experience designing high-throughput or low-latency systems
Added 9 days ago
S
Staff Software Engineer, Risk Engineering
Stripe
Toronto, ON
- Full-time
Proven experience designing, building, and operating high-throughput, low-latency APIs and distributed backend systems at scale.
Added 9 days ago
AI and Data - Senior Consultant - AI Engineer
EY
AB · Calgary, AB
…cloud environments, APIs, CI/CD, ensuring high availability and low…
Added 9 days ago
AI and Data - Manager - AI Engineer
EY
AB · Calgary, AB
…cloud environments, APIs, CI/CD, ensuring high availability and low…
Added 9 days ago
LT
Senior Java Developer / Technical Lead
Lorven Technologies Inc.
Toronto, ON
- Contract
We are seeking an experienced Senior Java Developer / Technical Lead to design and deliver secure, scalable, high-performance banking and payment applications. The ideal candidate will have…
Added 9 days ago
S
Java Developer
Synechron
Calgary, AB
- $90,000 to $100,000 CAD / year
- Full-time
We are looking for a highly skilled Senior Java Developer to join our company. In this role, candidate will design, create, and implement various Java-based solutions for the business that…
Added 9 days ago
AT
Java Engineer with Apache Flink
Arkhya Tech Inc.
Toronto, ON
- Contract
Senior Software Engineer – Java / Apache Flink (Hybrid)
Added 9 days ago
C
Senior Java Full Stack Developer (Hybrid)
Cognizant
Toronto, ON
- Full-time
As a Senior Java Full Stack Developer, you will make an impact by designing, developing, and supporting scalable, secure, and high-performing enterprise applications that power critical…
Added 9 days ago
C
Senior Java Backend Developer (Hybrid)
Cognizant
Toronto, ON
- Full-time
As a Senior Java Backend Developer, you will make an impact by designing, developing, and supporting scalable cloud-native applications and microservices that power critical customer-facing…
Added 9 days ago
T
Senior LEO SOC Systems Engineer
Telesat
Ottawa, ON
- Full-time
Telesat Lightspeed, our revolutionary Low Earth Orbit (LEO) satellite network, scheduled to begin service in 2027, will revolutionize global broadband connectivity for enterprise and…
Added 9 days ago
P
Senior Backend Engineer
Punt
Vancouver, BC
- $120,000 to $150,000 CAD / year
- Full-time
Experience building or operating high-availability, low-latency, or real-time systems.
Added 9 days ago
C
Full Stack Java Developer
Citi
Mississauga, ON
- Full-time
Work experience on the transactional applications for low latency, high availability uses is a plus
Added 9 days ago
AS
Senior Java Developer
Alquemy Search & Consulting
Toronto, ON
- Full-time
We are seeking Intermediate to Senior Java Developers to join a highly technical front-office development team supporting Financial Markets activities.
Added 9 days ago
ZS
Core Java Developer with E-trade Experience
Zodiac Solutions, Inc
Toronto, ON
- Full-time
We are seeking a highly skilled Senior Java Developer with AI experience to join the FIC Global Spread Products eTrading Technology team. The successful candidate will contribute to the…
Added 11 days ago
C
Backend Java Developer
Citi
Mississauga, ON
- Full-time
…businesses. Our talented technology group is looking for a hands-on, java developer to work in a Mississauga based server side development team on our award winning Citi Velocity…
Added 12 days ago
RI
Senior Backend Java Engineer - Risk Calculations
Rose International
Mississauga, ON
- Full-time
Experience developing real-time, low-latency applications.
Added 12 days ago
SI
Java Software Engineer
Smart IT Frame LLC
Mississauga, ON
- Full-time
Seeking a Senior Java Developer with strong Solace PubSub+ expertise to design, build, and optimize high-throughput, low-latency event-driven microservices for enterprise trading platforms.

QHR Technologies

Senior Database Performance Engineer

Kelowna, BC, Canada

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

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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.

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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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