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Added 13 hours ago
SC
RQ11139 - Sr. Software Developer
Source Code
Toronto, ON
- $69.9 to $104.86 CAD / hour
The Justice Technology Services - Digital Design Branch requires one (1) senior Software Developer with 8+ years of experience for building a modern digital information system and its…
Added 13 hours ago
SC
RQ11157 - Sr. Software Developer - Full Stack
Source Code
Toronto, ON
- $72.14 to $108.22 CAD / hour
· Demonstrated ability to create self-contained, reusable, and testable modules and components that build on the elements and modules of core AngularJS.
Added 13 hours ago
SC
RQ10475 - Sr. Software Developer
Source Code
Toronto, ON
- $59.48 to $89.21 CAD / hour
A senior programmer developer is required to support two Permissions Enterprise Platform (PEP) projects to meet the requirements related to permit modernization and integration with the…
Added 13 hours ago
SC
RQ11303 - Sr. Software Developer - Full Stack
Source Code
Toronto, ON
- $72.14 to $108.22 CAD / hour
- Full-time
· Demonstrated ability to create self-contained, reusable, and testable modules and components that build on the elements and modules of core AngularJS.
Added 13 hours ago
SC
RQ11090 - Sr. Software Developer - Full Stack
Source Code
Toronto, ON
- $72.14 to $108.22 CAD / hour
- Full-time
…API, Blazor WASM, Crystal Reports, APS. NET, LINQ, WCF, .Net Core , .Net Entity Framework, Reddis Cache, Xunit, and…
Added 13 hours ago
SC
RQ00213 - Software Developer - Senior
Source Code
Toronto, ON
- $69.9 to $104.86 CAD / hour
- Full-time
Location: 3 days in office, 2 days remote (277 Front St W) · Public Sector Experience: must have
Added 13 hours ago
SC
RQ00740 - Sr. Technology Architect
Source Code
Toronto, ON
- $88.44 to $132.66 CAD / hour
- Full-time
…standards such as OAuth 2.0, JWT, and REST‑based APIs (e.g., .NET Core, Java,…
Added 13 hours ago
SC
RQ11325 - Software Developer - Full Stack - Senior - 2 X
Source Code
Toronto, ON
- $72.14 to $108.21 CAD / hour
- Full-time
RQ11325 - Software Developer - Full Stack - Senior - 2X
Added 13 hours ago
SC
RQ11523 - Software Developer - Full Stack - Senior
Source Code
Toronto, ON
- $72.17 to $108.25 CAD / hour
- Full-time
Familiarity with native modules and bridging between React Native and native code (Objective-C/Swift or Java/Kotlin).
Added 13 hours ago
SC
RQ11377 - Software Developer - Full Stack - Senior
Source Code
Toronto, ON
- $72.13 to $108.23 CAD / hour
- Full-time
A senior full-stack software developer who will be responsible for ongoing development of the Ontario Agricultural Soil Information System (OASIS). The OASIS solution comprises the OASIS…
Added 13 hours ago
Senior DevOps Engineer
Tech Talent International
Montréal, QC
We currently have acontract role as a Senior DevOps Engineerwith our large consulting client on a long term project with a major financial services client in the downtown Montreal area.
Added 13 hours ago
Senior Software Developer - Storage Engine - Elasticsearch
Elastic
Canada
We're looking for a Senior Software Engineer to join the Elasticsearch - Storage Engine team. This globally distributed, fully remote team of experienced engineers develops core storage and…
Added 13 hours ago
Senior Software Developer - Query Engine, Database Internals - Elasticsearch
Elastic
Canada
You have strong skills in core Java and are conversant in the standard library of data structures and concurrency constructs, as well as newer features like lambdas.
Added 13 hours ago
Senior Software Developer - Performance Tuning - Elasticsearch
Elastic
Canada
…(RAG) for the world's largest organizations. We are seeking a Senior Software Developer to join the Elasticsearch Performance team. In this role, you will contribute to performance…
Added 13 hours ago
Senior Java Developer - Core/Infra - Elasticsearch
Elastic
Canada
We are on the lookout for a Senior Java Engineer to join our Elasticsearch team and focus on ensuring that the shared platform functionalities of Elasticsearch are easy to use, performant,…
Added 13 hours ago
Principal Software Developer - Search Infra - Elasticsearch
Elastic
Canada
We're looking for a Principal Software Developer to join the Elasticsearch - Search Infra team. This globally-distributed team of experienced engineers focuses on delivering a robust and…
Added 13 hours ago
Senior Spark Scala Developer – Java & Spring Boot
Astra North Infoteck Inc.
Toronto, ON
Spark Scala Developer – Apache Spark, Scala, Hadoop & Data Engineering
Added 13 hours ago
Senior Java Application Support Engineer – Java, Spring, SOAP, SSL/TLS & Production Support
Astra North Infoteck Inc.
Toronto, ON
Strong hands-on experience with Java 8 and Java 17.
Added 13 hours ago
Senior Java Microservices Developer – Java, Spring Boot, Kafka, MongoDB, OpenShift/AWS
Astra North Infoteck Inc.
Mississauga, ON
Must Have Technical/Functional Skills
Added 13 hours ago
Senior Java Backend Developer – Java, Distributed Systems, Agentic AI
Astra North Infoteck Inc.
Montréal, QC
Senior Java Backend Developer – Core Java, Distributed Systems, Agentic AI
Added 13 hours ago
Senior Software Engineer – Core Java, Apache Spark, Python, SQL, Data Processing
Astra North Infoteck Inc.
Montréal, QC
Senior Software Engineer – Core Java, Apache Spark, Python, Big Data, SQL
Added 13 hours ago
AN
Senior Java Developer – Spring Boot | TDD | CI/CD | AWS
Astra North Infoteck Inc.
Toronto, ON
- Contract
Senior Java Developer – Spring Boot, REST APIs, TDD & CI/CD
Added 13 hours ago
AN
Senior Java Developer – TDD, JUnit, CI/CD & Code Quality
Astra North Infoteck Inc.
Toronto, ON
- Contract
Apply core Java concepts - collections, concurrency and multithreading, generics, streams, exception handling, and JVM memory management - to build robust solutions.
Added 13 hours ago
AW
Architecte en sécurité cloud / Cloud Security Architect, Services Professionnels AWS / AWS professional services
Amazon Web Services Canada, Inc.
Toronto, ON · Vancouver, BC · Calgary, AB · Montréal, QC · Ottawa, ON
- Full-time
L'équipe AWS Professional Services (ProServe) recherche un architect en sécurité sénior pour rejoindre notre équipe au Québec. Dans ce rôle, vous travaillerez en étroite collaboration avec…
Added 13 hours ago
RC
Senior Cloud Development and Administration Specialist
Randstad Canada
Toronto, ON
- $63.85 to $70.51 CAD / hour
- Contract
We are seeking a highly accomplished Senior Cloud Development and Administration Specialist for an enterprise-level contract opportunity based in Toronto. In this role, you will take on a…

Elastic

Senior Software Developer - Performance Tuning - Elasticsearch

Canada

$128,300 - $203,000 CAD

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Job details

Pay: $128,300 - $203,000 CAD
Posting language: English
Posted: Aug 18, 2026

Original job description

Elastic, the Search AI Company, enables everyone to find the answers they need in real time, using all their data, at scale - unleashing the potential of businesses and people. The Elastic Search AI Platform, used by more than 50% of the Fortune 500, brings together the precision of search and the intelligence of AI to enable everyone to accelerate the results that matter. By taking advantage of all structured and unstructured data - securing and protecting private information more effectively - Elastic’s complete, cloud-based solutions for search, security, and observability help organizations deliver on the promise of AI.

What is The Role

Elasticsearch powers search, observability, and AI retrieval (RAG) for the world's largest organizations. We are seeking a Senior Software Developer to join the Elasticsearch Performance team. In this role, you will contribute to performance engineering initiatives through high-quality code and technical analysis. Your goal is to help improve the optimization and predictability of Elasticsearch performance, collaborating with area-specific teams to enhance our software.

What You Will Be Doing

Contributing to core performance engineering initiatives from development to production, focusing on the delivery of impactful optimizations. Executing technical designs and plans for architectural and code-level performance improvements.
Implementing foundational performance models and methodologies for complex, distributed systems.
Supporting optimization strategies to ensure Elasticsearch remains performant, predictable, and scalable in diverse environments.
Profiling and analyzing system behavior to identify bottlenecks in logging, metrics, vector search, and ES|QL.
Ensuring robust performance benchmarks and regression detection for both stateful and stateless (Serverless) architectures.
Collaborating with peers across the team to apply performance-focused development practices into new features.
Contributing to automation efforts by building AI-assisted optimization harnesses that streamline profiling, hypothesis testing, and benchmarking.
Providing technical guidance and peer reviews to other engineers, fostering a culture of technical excellence.

What You Bring

You have deep knowledge of Java internals and JVM memory management. You understand how concurrency models work. You can write code that is high-performance, thread-safe, and lock-free. This experience includes working with large open-source and enterprise codebases.
You have proven experience in profiling and optimizing distributed systems. This includes deep experience with benchmarking tools (e.g., JMH, Rally), identifying performance regressions, and implementing algorithmic or hardware-aware optimizations.
You have a solid comprehension of distributed systems architecture, including partition tolerance, cluster state propagation, and scaling challenges in large-scale data stores.
You have a proven track record of using AI or advanced tooling to accelerate optimization, debug complex performance issues, and automate benchmarking workflows.
You possess the ability to collaborate effectively within a team environment, contributing to the success of performance engineering goals.
You possess the ability to collaborate across functions and teams and seamlessly transition between different projects, codebases, or teams based on business priorities
You can work autonomously, drive decisions, and result in a distributed team by leveraging asynchronous, direct, and transparent communication.

Bonus Points

Experience integrating high-performance native libraries (e.g., C++, Rust, SIMD-accelerated code) into Java applications.
Deep knowledge of modern storage engine performance, index modes, or vector search optimizations.
Experience defining and managing Performance SLAs and success criteria for distributed systems.
Experience working on the internals of a large-scale data store or search engine.
Experience working on the internals of a data store or search engine.

Compensation for this role is in the form of base salary. This role does not have a variable compensation component. The typical starting salary range for new hires in this role is listed below.

These ranges represent the lowest to highest salary we reasonably and in good faith believe we would pay for this role at the time of this posting. We may ultimately pay more or less than the posted range, and the ranges may be modified in the future.

An employee's position within the salary range will be based on several factors including, but not limited to, relevant education, qualifications, certifications, experience, skills, geographic location, performance, and business or organizational needs.

Elastic believes that employees should have the opportunity to share in the value that we create together for our shareholders. Therefore, in addition to cash compensation, this role is currently eligible to participate in Elastic's stock program. Our total rewards package also includes a company-matched Registered Retirement Savings Plan (RRSP) with dollar-for-dollar matching up to 6% of eligible earnings, along with a range of other benefits offered with a holistic emphasis on employee well-being.

The typical starting salary range for this role is:

$128,300 - $203,000 CAD

Additional Information - We Take Care of Our People

As a distributed company, diversity drives our identity. Whether you’re looking to launch a new career or grow an existing one, Elastic is the type of company where you can balance great work with great life. Your age is only a number. It doesn’t matter if you’re just out of college or your children are; we need you for what you can do.

We strive to have parity of benefits across regions and while regulations differ from place to place, we believe taking care of our people is the right thing to do.

Competitive pay based on the work you do here and not your previous salary
Health coverage for you and your family in many locations
Ability to craft your calendar with flexible locations and schedules for many roles
Generous number of vacation days each year
Increase your impact - We match up to $2000 (or local currency equivalent) for financial donations and service
Up to 40 hours each year to use toward volunteer projects you love
Embracing parenthood with minimum of 16 weeks of parental leave

Different people approach problems differently. We need that. Elastic is an equal opportunity employer and is committed to creating an inclusive culture that celebrates different perspectives, experiences, and backgrounds. Qualified applicants will receive consideration for employment without regard to race, ethnicity, color, religion, sex, pregnancy, sexual orientation, gender perception or identity, national origin, age, marital status, protected veteran status, disability status, or any other basis protected by federal, state or local law, ordinance or regulation.

We welcome individuals with disabilities and strive to create an accessible and inclusive experience for all individuals. To request an accommodation during the application or the recruiting process, please email candidate_accessibility@elastic.co. We will reply to your request within 24 business hours of submission.

Applicants have rights under Federal Employment Laws, view posters linked below: Family and Medical Leave Act (FMLA) Poster; Pay Transparency Nondiscrimination Provision Poster; Employee Polygraph Protection Act (EPPA) Poster and Know Your Rights (Poster)

Elasticsearch develops and distributes technology and information that is subject to U.S. and other countries’ export controls and licensing requirements for individuals who are located in or are nationals of the following sanctioned countries and regions: Belarus, Cuba, Iran, North Korea, Syria, or Russia, including the Ukrainian territories annexed by Russia (The Crimea region of Ukraine, The Donetsk People's Republic (DNR), The Luhansk People's Republic (LNR), Kherson or Zaporizhzhia). If you are located in or are a national of one of the listed countries or regions, an export license may be required as a condition of your employment in this role. Please note that national origin and/or nationality do not affect eligibility for employment with Elastic.

Please see here for our Privacy Statement.

Apply on jobs.elastic.co About employer

More about this job

Responsibilities

The Senior Software Developer at Elastic will write and review performance-focused code, profile systems to find bottlenecks, and build benchmarks that catch slowdowns. The role also involves mentoring engineers and building automation that speeds up optimization work.

Requirements

Candidates need deep Java internals and JVM memory management knowledge, plus experience profiling and benchmarking distributed systems with tools such as JMH and Rally. They also need an understanding of distributed systems architecture and a track record of using AI or advanced tooling to speed up optimization.

Skills

Java
JVM memory management
Java concurrency
JMH
Rally
Elasticsearch
profiling
benchmarking
performance regression detection
distributed systems architecture
vector search
ES|QL
C++
Rust
SIMD
Python
AI-assisted tooling
performance SLAs
code review
technical mentoring

Benefits

Company-matched RRSP
Stock program
Health coverage
Vacation days
Volunteer time
Parental leave

Keywords

Elasticsearch
Java
JVM
performance engineering
profiling
JMH
Rally
benchmarking
distributed systems
vector search
ES|QL
logging
metrics
regression detection
Serverless
concurrency
lock-free
search engine
RAG
AI-assisted optimization

Seniority

Senior

Perks

Generous paid time off
Parental leave
Retirement plan
Stock or equity

Tools

JMH
Rally
Elasticsearch
Java

Languages

English

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Work requirements

Jobs in Canada