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Jobs in Canada

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Added 21 mins ago
GCP Senior Data Engineer
Axiom Global Technologies
Canada
Contract
Own the data platform: Architect and manage BigQuery, Cloud Storage and Data Fusion for ingesting, transforming and storing data
Added 37 mins ago
Backend Engineer
Movable Ink
Toronto, ON
We’re looking for a Mid-Level Software Engineer to join the Behavioral team, responsible for turning raw customer signals into meaningful marketing triggers. This team builds the behavioral…
Added 37 mins ago
Principal Defence Systems Engineer
SkyWatch
Ottawa, ON
Full-time
…observation data is accessed and utilized globally. Our innovative platform empowers businesses, researchers, and governments to easily integrate satellite data into their operations,…
Added 37 mins ago
Principal Platform Engineer
SkyWatch
Remote, Canada
Full-time · Remote
…observation data is accessed and utilized globally. Our innovative platform empowers businesses, researchers, and governments to easily integrate satellite data into their operations,…
Added 37 mins ago
Senior Software Engineer, Multiple Teams
Relay
Remote, Canada
Full-time · Remote
Relay is a digital banking platform that gives self-made business owners the tools and know-how to be great with money - bringing clarity, confidence, and control to every dollar earned, so…
Added 37 mins ago
Senior Software Engineer, Multiple Teams
Relay
Remote, Canada
Full-time · Remote
Relay is a digital banking platform that gives self-made business owners the tools and know-how to be great with money - bringing clarity, confidence, and control to every dollar earned, so…
Added 37 mins ago
Senior Software Engineer (Voyager)
Relay
Remote, Canada
Full-time · Remote
Relay is a digital banking platform that gives self-made business owners the tools and know-how to be great with money - bringing clarity, confidence, and control to every dollar earned, so…
Added 37 mins ago
Intermediate Forensics Mechanical Engineer
J.S. Held LLC
Toronto, ON
Full-time
Basic knowledge of using CAD Software (SolidWorks, AutoCAD) and Revit platform to produce 3D models and drawings; and a willingness to learn additional programs to support the design,…
Added 51 mins ago
Artificial Intelligence Engineer
Gala Solutions
Montreal, QC
Contract
Job Title: AI Platform Engineering Specialist
Added 51 mins ago
Technology Lead - Databricks Admin
Infosys
Mississauga, ON
$92,740 to $123,375 CAD / year
Full-time
…managing, securing, and optimizing Databricks environments on cloud platform: AWS. The ideal candidate should have hands-on experience in cloud database administration, cluster management,…
Added 51 mins ago
Cryptographic Systems Engineer (Post-Quantum)
SuperQubit Inc.
Markham, ON
Full-time
Job Title: Cryptographic Systems Engineer (Post-Quantum)
Added 51 mins ago
Backend Engineer
Movable Ink
Toronto, ON
Full-time
We’re looking for a Mid-Level Software Engineer to join the Behavioral team, responsible for turning raw customer signals into meaningful marketing triggers. This team builds the behavioral…
Added 1 hour ago
Digital Architect – Data - GOAPRDJP00000987
S M Software Solutions Inc
AB · Edmonton, AB
Full-time
Experience as a data architect, software architect, or senior data engineer, where the proposed resource’s focus has been collaborative work on and/or with cross-functional teams to create…
Added 1 hour ago
Senior Software Engineer
Raydar
Remote, Canada
Full-time · Remote
As a Senior Software Engineer, you will build across the product, from full-stack features to real-time voice and LLM-powered capabilities. You may also work directly with customer-facing…
Added 1 hour ago
GCP Senior Data Engineer
Aptino, Inc.
Canada
Contract
We are looking for a GCP Senior Data Engineer – Lead with strong hands-on data engineering expertise and proven experience leading onshore/offshore data engineering teams.
Added 1 hour ago
AI/ML Systems Engineer
Actalent
Ottawa, ON
Contract
Systems Engineer, AI-Powered Diagnostics & Observability
Added 2 hours ago
Technical Program Manager
Spotify
Toronto, ON
Drive alignment across ML engineering, data science, product, platform, and UX teams so everyone is working toward the same goals.
Added 3 hours ago
Senior Staff Cloud Security Engineer | Operational Technology | Office of CISO
ServiceNow
AB · Alberta, CANADA
Full-time
It all started when engineer Fred Luddy wrote code that automated a tedious task for his coworker, Phyllis. She cried tears of joy. That moment inspired Fred to build a company that could…
Added 3 hours ago
Staff Software Engineer
BlueCat
Toronto, ON · Greater Toronto Area, Canada
Full-time
We're looking for a systems engineer to build and operate high-throughput, low-latency network infrastructure written in Rust. You'll work on the core data plane of a production DNS…
Added 5 hours ago
QA Engineer
Ontinue
Toronto, ON
Full-time
We’re looking for a QA Automation Engineer to help us scale quality across a fast-moving engineering team. This role is about building the automation, processes, and release confidence that…
Added 6 hours ago
Data Engineering, Cloud Migration & Platforms Engineer
General Motors
Markham, ON
Full-time
…migrating and transforming the architecture to a cloud-based platform. This role will help establish the engineering standards, reusable platform capabilities, delivery automation, and…
Added 9 hours ago
Senior Embedded Software Designer
Kepler Communications Inc.
Toronto, ON
Full-time
We're on the hunt for a top-tier Embedded Software Engineer. Your focus will be on software development and maintenance required for both space and ground-based assets for a growing fleet…
Added 9 hours ago
Software Engineer - Open Data Platform (ODP)
Acceldata
Kitchener, ON
$70,000 to $100,000 CAD / year
Full-time
We are seeking a Software Engineer with at least 3 years of experience in distributed systems or data platform development. In this role, you will design, build, and scale components of the…
Added 9 hours ago
Intermediate Software Engineer
AltaML
Toronto, ON
$90,000 to $110,000 CAD / year
Full-time
We overpay for the right people. We'd rather pay a premium for an engineer who embodies this and multiplies the team than save money on someone who doesn't
Added 10 hours ago
AV Service Engineer - Control Systems & Device Integration
EvertzAV
Burlington, ON
Internship
Evertz AV is looking for a Service Engineer to join our AV Service team with a specific focus on Control System customization and deployment with a specific focus on , our software-defined…

BlueCat

Staff Software Engineer

Toronto, ON, Canada
Greater Toronto Area, Canada, Canada

Pay: $160,000 - $190,000 a year
Job type: Full-time
Apply by: Oct 30, 2026
Posting language: English
Posted: Sep 30, 2026

Apply About employer

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Original job description

We're BlueCat - a Great Place to Work for good reason. Our team solves critical network challenges for some of the world's largest organizations. In simple terms, we manage the systems that keep networks running smoothly, securely, and reliably - the backbone infrastructure that powers digital transformation for enterprises globally. Our Intelligent Network Operations platform delivers and enables AI-driven agentic ops at scale, automating and simplifying how companies manage, secure, and optimize their networks.

But what makes us different is how we work: we believe great work happens in an environment where you're trusted, heard, and supported. With teams globally, we're building a workplace culture that values collaboration and integrity as much as innovation. If you're looking to advance your career with a company that invests in its people, this is it.

About the role:

We're looking for a systems engineer to build and operate high-throughput, low-latency network infrastructure written in Rust. You'll work on the core data plane of a production DNS platform. This service that handles large query volumes with tight latency budgets, strong reliability guarantees. It's also a role where you stay close to the people who use what you build, translating real customer problems into the right technical solution.

What you'll do:

Design and implement components of a high-performance DNS engine: resolvers, forwarders, caching layers, and request-processing pipelines.

Implement and harden DNS protocol features across transports: UDP/TCP, DNS-over-HTTPS, DNS-over-TLS, DNSSEC, EDNS Client Subnet, and related standards.

Build features for traffic management and reliability: global server load balancing, health-checking, policy evaluation, response rewriting, and threat/security filtering.

Profile and optimize hot paths: memory allocation, data structures (tries, caches), connection pooling and multiplexing and back changes with benchmarks.

Integrate the data plane with control-plane services: configuration updates across distributed deployed nodes.

Own observability for your components: metrics, structured logging/tracing, and diagnostics that make production behavior legible.

Write thorough unit, integration, and component tests; keep the build green and the codebase clean (linting, formatting, dependency hygiene, security advisories).

Working with customers and product:

Listen directly to customers: through support escalations, field reports, and conversations to understand the problem behind the request, not just the feature they asked for.

Partner with product management to turn customer pain points into well-scoped features, and help shape the roadmap by grounding it in what's technically feasible and where the real leverage is.

Reproduce and diagnose customer-reported issues in production traffic patterns, then design fixes that address the root cause rather than the symptom.

What we're looking for:

Strong systems programming experience in Rust, including async programming with tokio

Solid grasp of networking fundamentals: TCP/UDP, TLS, HTTP, and ideally DNS or another wire protocol.

Experience writing performance-sensitive concurrent code, and the instinct to measure before and after with benchmarks and profiling.

A test-first, correctness-oriented mindset - you care about edge cases, graceful shutdown, backpressure, and deterministic behavior under concurrency.

Comfort working across a large workspace: crates/modules, shared libraries, plugin boundaries, and CI.

Strong communication skills and genuine customer empathy: you can talk to non-engineers, ask the right questions, and translate fuzzy problems into concrete engineering work.

Nice to have:

Open source work in the Rust/tokio ecosystem a major plus

DNS internals (record types, SOA/TTL handling, DNSSEC, ECS, dnstap).

Prometheus metrics, tracing, and production observability practices.

Protobuf/gRPC, service discovery, and control-plane/data-plane architectures.

Allocator tuning (jemalloc/mimalloc), lock-free/atomic programming, and low-level performance work.

Experience upgrading language toolchains and managing dependency/security posture over time.

Experience working directly with customers or in a product-partnered engineering role.

Impact:

Your work directly affects the performance, resilience, and security of a service that sits on the critical path for every request that depends on it. Small improvements in latency, memory, or correctness matter at scale, and because you stay close to customers, you'll see those improvements land as real problems solved.

$160,000 - $190,000 a year

The annual salary range for this position is 160.000 – 190.000 CAD, plus participation in a discretionary bonus plan. Final compensation will be determined based on skills, experience, and qualifications.

The role is for an existing vacancy.

If you share our enthusiasm for the future of our company and are eager to contribute to our vibrant workplace, we look forward to receiving your application! Our comprehensive benefits encompass your health, financial well-being, and overall wellness, and we are committed to providing an exceptional work environment, enriching employee programs, and fostering a remarkable company culture. At our core, we champion values such as transparency, curiosity, respect, and above all, the pursuit of enjoyment.

In addition, we offer a range of appealing perks, including:

A Professional Development Budget

Dedicated Wellness Days and Wellness Week

A Lifestyle Spending Account

An Employee Recognition Program

Join us in shaping the future of our organization, where your talent and dedication can truly thrive. We invite you to apply and become a valuable member of our team!

BlueCat is an Equal Opportunity Employer that is committed to inclusion and diversity. We also take affirmative action to offer employment and advancement opportunities to all applicants, including minorities, women, protected veterans, and individuals with disabilities. BlueCat will not discriminate or retaliate against applicants who inquire about, disclose, or discuss their compensation or that of other applicants.

Apply About employer

More about this job

Responsibilities

Design, implement, and optimize components of a high-performance DNS data plane, including protocol features, traffic management, reliability, security, and integration with control-plane services. Build observability and comprehensive tests, diagnose customer-reported issues, and collaborate with customers and product management to deliver practical solutions.

Requirements

Candidates should have strong Rust systems-programming experience, including asynchronous programming with Tokio, and a solid understanding of networking protocols such as TCP/UDP, TLS, and HTTP. They should also be experienced in performance-sensitive concurrent code, testing and correctness, and communicating with customers to translate problems into engineering work.

Skills

Rust
Tokio
Systems Programming
DNS
TCP/UDP
TLS
HTTP
Concurrent Programming
Performance Optimization
Benchmarking and Profiling
DNSSEC
Observability
Prometheus
Tracing
Protobuf/gRPC
Customer Communication

Benefits

Discretionary Bonus Plan
Professional Development Budget
Wellness Days
Wellness Week
Lifestyle Spending Account
Employee Recognition Program
Health and Wellness Benefits

Visa sponsorship

Not detected in the job text

Keywords

Rust
Tokio
DNS
DNS Resolver
DNS Forwarder
DNS Caching
UDP
TCP
DNS-over-HTTPS
DNS-over-TLS
DNSSEC
EDNS Client Subnet
Global Server Load Balancing
Health Checking
Traffic Management
Threat Filtering
Performance Profiling
Benchmarking
Concurrent Programming
Prometheus
Structured Logging
Distributed Systems
Control Plane
Data Plane
Protobuf
gRPC
Service Discovery
jemalloc
mimalloc
CI

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