Jobs in Canada

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Added 1 month ago
TC
Site Reliability Engineer
TJX Canada – Winners, Marshalls, HomeSense
Mississauga, ON
- Full-time
We’re looking for a Site Reliability Engineer who can closely work with Arch/Design/Business team, including Developer testing, performance, good visibility of what is happening within the…
Added 1 month ago
JG
Senior Java Full Stack Developer
J&M Group
Toronto, ON
- Contract
We are hiring for a Senior Java Full Stack Developer. This role focuses on building scalable enterprise applications using Java, Spring Boot, modern front-end frameworks, and cloud…
Added 1 month ago
AI Platform Software Engineer
Scotiabank
Toronto, ON
Build scalable APIs, orchestration layers, SDKs, and self-service tooling that improve developer productivity and reduce friction for AI product teams.
Added 1 month ago
Technology Lead - Angular
Infosys
ON
Infosys is seeking a Frontend Developer - Angular for a critical enterprise application undergoing transition. In this role, you will interface with key business and technical stakeholders…
Added 1 month ago
Technology Lead - Angular
Infosys
ON
Infosys is seeking a Frontend Developer - Angular for a critical enterprise application undergoing transition. In this role, you will interface with key business and technical stakeholders…
Added 1 month ago
Senior Core Java Engineer
Capgemini
Montreal, QC
We are seeking a Senior Core Java Engineer to design, develop, and support high-performance, scalable enterprise applications. The ideal candidate will have strong expertise in Core Java,…
Added 1 month ago
OT
Lead Software Developer
Open Text Corporation
Richmond Hill, ON
- Other
As a Lead Software Developer on the OpenText Application Integrator product team, you will enhance product security by addressing vulnerabilities, design and maintain mission-critical…
Added 1 month ago
C
Big Data Developer
Cognizant
Toronto, ON
- $53,000 to $108,000 CAD / year
- Full-time
Based on this role's business requirements, this is a hybrid position requiring 4 days per week onsite in Toronto, Ontario
Added 1 month ago
VC
Java developer
VBeyond Corporation
Calgary, AB
- Full-time
We are looking for a Java developer to join our team and help deliver key initiatives. The candidate should be a solid Java programmer, with strong design and implementation fundamentals.…
Added 1 month ago
SL
Senior Software Engineer, Operations
Sun Life
Toronto, ON · Waterloo, ON · Sun Life Toronto Atria
- Full-time
We are looking for a Senior Software Engineer who thrives in high-impact environments and brings 7+ years of Java application support, analysis, and development experience. In this role,…
Added 1 month ago
P
Senior Backend Engineer
Punt
Vancouver, BC
- $120,000 to $150,000 CAD / year
- Full-time
Strong production experience with Laravel/PHP or comparable backend stacks such as Node.js/TypeScript, Java/Kotlin, Go, Python, Ruby on Rails, or .NET.
Added 1 month ago
F
Staff Back End Engineer- TQM
Forma.ai
Toronto, ON
- Full-time
Proficiency in Kotlin, Java, or a similar language, and comfort working across the stack, including a TypeScript and React frontend.
Added 1 month ago
C
Senior Java Architect - Vice President
Citi
Mississauga, ON
- Full-time
As a Senior Java Architect at Citi, you will lead a team of engineers building Large Language Model and Retrieval-Augmented Generation solutions that power next-generation applications…
Added 1 month ago
C
Senior Engineering Manager
Citi
Mississauga, ON
- Full-time
Champion AI-Driven Engineering: Pioneer and institutionalize the adoption of GenAI developer tools, coding copilots, and automated CI/CD gating to accelerate development throughput and code…
Added 1 month ago
AI Full Stack Engineer
Scotiabank
Toronto, ON
Build scalable APIs, orchestration layers, SDKs, and self-service tooling that improve developer productivity and reduce friction for AI product teams.
Added 1 month ago
TC
Java Technical Lead / Architect
Tata Consultancy Services
Toronto, ON
- $100,000 to $120,000 CAD / year
- Full-time
Seeking an experienced Java Technical Lead / Architect to provide technical leadership and solution architecture for enterprise applications. The role will be responsible for designing…
Added 1 month ago
T
Senior Android Engineer
TekRek
Toronto, ON
- Contract
Build and maintain Android applications for POS terminals in Kotlin and Java, using Jetpack, MVVM, Coroutines and Hilt/Dagger
Added 1 month ago
TC
Application Development
Tata Consultancy Services
Toronto, ON
- $90,000 to $100,000 CAD / year
- Full-time
Java 11/17+, Spring Boot, Spring MVC, Spring Security.
Added 1 month ago
L
Senior Forward Deployment Engineer
Luxoft
Mississauga, ON
- Full-time
…performing dependency and reachability analysis, upgrading Java and NPM runtimes, modernizing Spring and legacy middleware applications, improving CI/CD pipelines, containerizing…
Added 1 month ago
Software Escalation Engineer (Python)
Varonis
Canada
Experience working with AWS, Azure, or GCP, Docker, Kubernetes, and microservices – Advantage.
Added 1 month ago
AS
Full Stack Developer
Apex Systems
Toronto, ON
- $55 to $67 CAD / hour
- Contract
We are seeking an Expert Full Stack Developer to design, build, and maintain both front-end interfaces and back-end systems, including APIs, microservices, databases, and cloud deployments.…
Added 1 month ago
L
Senior System Test Engineer
LanceDB
Canada
- Full-time
Strong programming skills in Python and at least one systems language such as Rust, C++, Java, or Go, with the ability to build maintainable test infrastructure and debug product code
Added 1 month ago
C
Senior Java Full Stack Developer
CGI
Toronto, ON
- Full-time
This role is hybrid and requires you to be at our downtown Toronto and/or Client office at a minimum 2 -3 days per week subject to change at any time
Added 1 month ago
A
ClickHouse Solutions Engineer in North America (Clickhouse experience is a must)
Altinity
Remote, Canada
- $90,000 to $160,000 USD / year
- Full-time
- Remote
Knowledge of at least one programming language (Python, C++, Java, Go)
Added 1 month ago
C
Technical Lead
Cognizant
Toronto, ON
- Full-time
7+ years of software development experience with strong expertise in Java or Python, including REST APIs and microservices.

LanceDB

Senior System Test Engineer

Canada

Full-time

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Job details

Job type: Full-time
Posting language: English
Posted: Oct 13, 2026

Original job description

About LanceDB

AI advances at the speed of its research, and research moves at the speed of its data. LanceDB is the AI-native Multimodal Lakehouse: one system where a researcher curates petabytes of video, audio, and every signal derived from them with a few lines of Python, and the next training run starts as fast as the next idea. Customers like Runway, Midjourney, and Netflix build the future of AI on LanceDB, from frontier and world models to robots and autonomous vehicles.

About The Role

As the Senior System Test Engineer at LanceDB, you will drive the correctness, reliability, and performance of Lance and LanceDB under demanding production conditions. You'll work at the intersection of distributed databases, systems engineering, and test infrastructure, building the frameworks and workloads that expose failures before our users encounter them.

You'll partner closely with engineering to turn architectural risks and real customer workloads into automated, reproducible tests, and to diagnose and fix complex failures. This is a hands-on role with ownership of system-level test strategy and execution, where you'll use AI tooling adeptly to accelerate development and investigation while maintaining rigorous validation.

This is an opportunity to define the quality bar for infrastructure powering the next generation of AI workloads, and to directly influence product architecture, release confidence, and the reliability our users depend on as they move from experimentation to production at scale.

What You'll Do

System test strategy: Define and drive system-level testing across correctness, reliability, scalability, and performance, prioritizing the highest-risk behaviors in the platform.
Test frameworks and workloads: Build automated test frameworks and realistic workloads covering ingestion, concurrent reads and writes, indexing, querying, and dataset maintenance.
Data integrity and fault injection: Validate data integrity and documented consistency guarantees under concurrency, retries, partial failures, and recovery. Develop fault-injection and resilience tests for process crashes, network disruptions, storage errors, resource exhaustion, and interrupted operations.
Performance testing: Design load, stress, and long-running soak tests, and identify regressions in latency, throughput, resource usage, and search quality.
Upgrades and compatibility: Test upgrades, compatibility, and recovery scenarios to ensure the platform behaves predictably as software and workloads evolve.
Partner closely with engineers to investigate failures using logs, metrics, traces, and source code, reduce complex issues to minimal reproductions, and drive fixes and regression coverage.
Develop and continuously improve reproducible test environments, integrating reliable, actionable checks into CI and release workflows.
Use AI coding assistants and other AI tools to develop test harnesses, explore failure scenarios, analyze results, and accelerate debugging, independently verifying generated code and conclusions.

What We're Looking For

10+ years of experience in software engineering, system test engineering, or test infrastructure, with substantial experience building or validating distributed databases or large-scale data systems
Deep understanding of distributed databases, including consistency models, replication, partitioning, concurrency control, durability, and failure recovery
Proven track record of designing tests that verify system invariants and uncover data corruption, race conditions, and failures that emerge only under load or partial outages
Strong programming skills in Python and at least one systems language such as Rust, C++, Java, or Go, with the ability to build maintainable test infrastructure and debug product code
Hands-on experience with fault injection, performance testing, workload generation, and automated testing in distributed environments
Demonstrated ability to use AI tooling adeptly in daily engineering work, including coding assistants and agent-based workflows, with sound judgment about validating outputs
Experience with Linux, cloud infrastructure, containers, CI/CD, and observability tools
Ability to own ambiguous projects, prioritize risk, communicate findings clearly, and collaborate closely with engineers to drive issues to resolution

Nice to Have

Experience testing database storage engines, query engines, vector search, or cloud object storage integrations
Familiarity with LanceDB, Lance, Apache Arrow, DataFusion, Parquet, or related data infrastructure
Experience with property-based testing, fuzzing, differential testing, or distributed consistency testing
Experience with Kubernetes, infrastructure as code, and large-scale test environment orchestration
Contributions to open-source databases, distributed systems, or testing frameworks

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More about this job

Responsibilities

Define and own system-level testing for Lance and LanceDB, building automated frameworks and realistic workloads to validate correctness, reliability, scalability, performance, data integrity, upgrades, and recovery. Investigate failures with engineering, drive fixes and regression coverage, and improve reproducible test environments and CI/release checks using AI tools with independent validation.

Requirements

Requires 10+ years of software, system test, or test infrastructure experience, including substantial work with distributed databases or large-scale data systems and a strong understanding of consistency, replication, concurrency, durability, and recovery. Candidates need strong Python and systems-language programming skills, hands-on distributed testing and performance experience, familiarity with Linux, cloud, containers, CI/CD, and observability, and the ability to use AI tools judiciously.

Skills

Distributed Databases
System Testing
Test Infrastructure
Python
Rust
C++
Java
Go
Fault Injection
Performance Testing
Data Integrity
Concurrency Testing
Linux
Cloud Infrastructure
CI/CD
Observability

Visa sponsorship

Not detected in the job text

Keywords

LanceDB
Lance
Distributed Databases
System Testing
Test Frameworks
Python
Rust
C++
Java
Go
Consistency Models
Replication
Partitioning
Concurrency Control
Durability
Fault Injection
Performance Testing
Workload Generation
Property-Based Testing
Fuzzing
Differential Testing
Linux
Cloud Infrastructure
Containers
CI/CD
Observability
Kubernetes
Apache Arrow
DataFusion
Parquet

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Work requirements

Jobs in Canada