Jobs in Canada

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Added 24 days ago
SE
Senior AI Application Development Specialist
Schneider Electric
Montreal, QC
- Full-time
…problems collaboratively and can balance rapid experimentation with the thoughtful engineering practices required to build secure, testable, observable, and dependable AI-enabled systems.…
Added 24 days ago
SE
Senior AI Data Engineering Specialist
Schneider Electric
Montreal, QC
- Full-time
…contextualize, govern, and evaluate content from multiple sources, with the appropriate levels of quality, traceability, and access…
Added 24 days ago
AM
Firmware Engineering Manager
Advanced Micro Devices, Inc
Markham, ON
- Full-time
The right candidate brings deep hands-on expertise in GFX pipeline and SOC architecture and debug, combined with the management maturity to coach engineers, drive cross-functional…
Added 24 days ago
B
Software Application Developer
BMO
Calgary, AB · GCS
- Full-time
Hybrid – 2–3 days per week in office
Added 24 days ago
GV
Protection Element Embedded SW Developer-
GE Vernova
Markham, ON
- Full-time
…procedures. Some judgment may be required but this is typically with…
Added 24 days ago
GV
Senior Protection Element Embedded SW Developer
GE Vernova
Markham, ON
- Full-time
…procedures. Some judgment may be required but this is typically with…
Added 24 days ago
KC
Senior Backend Software Engineer – Data Platform
Kaseya Careers
Toronto, ON
- $205,000 to $240,000 CAD / year
Collaborate closely with Product, Infrastructure, Security, AI, and other Software Engineering teams
Added 24 days ago
O
FPGA AI Accelerator Engineer
O-HIVE.AI
Windsor, ON
- Full-time
This position involves working closely with AI researchers, software engineers, embedded systems developers, and ASIC designers to transition computationally intensive algorithms into…
Added 24 days ago
F
Senior Software QA Specialist – FortiGate Cloud
Fortinet
Burnaby, BC
- Full-time
Test Automation (a plus): Experience with test automation frameworks and scripting (e.g., Selenium, Python, etc.) is highly desirable.
Added 24 days ago
I
Principal Software Developer
Intuit
Toronto, ON
- Full-time
Come join Intuit as a Principal Software Developer and help us power prosperity around the world. We are looking for engineers that love to take on new challenges, solve tough problems, and…
Added 24 days ago
I
Senior Staff Software Developer
Intuit
Toronto, ON
- Full-time
This is a hybrid role with the expectation of working from our Toronto office 3 days per week
Added 24 days ago
M
Senior Security Engineer, Detection and Response
Marqeta
Remote, Canada
- Full-time
- Remote
Experience with programming languages such as Python, JavaScript, or Go
Added 25 days ago
SI
Cryptographic Systems Engineer (Post-Quantum)
SuperQubit Inc.
Markham, ON
- Full-time
Must reside in the Greater Toronto Area
Added 25 days ago
A
Ingénieur En Cybersécurité
Actalent
MB · Saint-Laurent, MB
- $75 to $105 CAD / hour
- Contract
Il s'agit d'un rôle hybride nécessitant 3-4 jours au bureau
Added 25 days ago
P
Member of Technical Staff (Software Engineer, API Platform)
Perplexity
Toronto, ON
- $220,000 to $405,000 CAD / year
- Full-time
…agent orchestration, and frontier topics that often change with each passing month. Throughout this work, you'll prioritize great developer and agent experience alike. You'll also define…
Added 25 days ago
R|
Programmer
RI-MUHC | Research Institute of the MUHC | #rimuhc
Montreal, QC
- Full-time
…arm of the McGill University Health Centre (MUHC) affiliated with the Faculty of Medicine at McGill University. The RI-MUHC is supported in part by the Fonds de recherche du Québec - Santé…
Added 25 days ago
Q
FPGA Design & Firmware Engineer, Staff
Qualcomm
Markham, ON
- Full-time
Hands-on programming experience with C++ and Python.
Added 25 days ago
S1
Full-Stack Machine Learning Engineer
Signal 1
Toronto, ON
- Full-time
- Depth in AI and backend engineering: strong Python for services and ML pipelines, working fluency with cloud infrastructure and CI/CD, and a working understanding of frontend development…
Added 25 days ago
LI
Sr. Data Engineer
Livingston International
Toronto, ON
- Full-time
The ideal candidate must have experience in building end-to-end data pipelines in GCP
Added 25 days ago
TI
Senior Data Developer
TS Imagine
Montreal, QC
- Full-time
Applicants must be based in Montreal and able to communicate in French
Added 25 days ago
Q
DSP System Engineer
Qualcomm
Markham, ON
- Full-time
New grads as well as experienced candidates (2-5 years) are welcome to apply with experience in the following area:
Added 25 days ago
A
Firmware Engineering Manager
AMD
Markham, ON
- $140,800 to $211,200 CAD / year
- Full-time
The right candidate brings deep hands-on expertise in GFX pipeline and SOC architecture and debug, combined with the management maturity to coach engineers, drive cross-functional…
Added 25 days ago
A
Développeur / Developpeuse Full-stack
Actalent
Montreal, QC
- $60 to $70 CAD / hour
- Contract
Engage in 60% backend development with Python.
Added 25 days ago
TT
AI Application Modernization Architect/Lead- Bilingual
Tech Talent International
Montreal, QC
- $140,000 to $160,000 CAD / year
- Full-time
Location: Hybrid - Montreal, QC -(2/3 days per week onsite)
Added 25 days ago
A
Ingénieur En Validation & Vérification
Actalent
Quebec, QC
- $40 to $58 CAD / hour
- Contract
…devices and associated software systems. You will work closely with R&D, Quality Assurance, Regulatory Affairs, Manufacturing Engineering, and Product Management teams to ensure products…

SuperQubit Inc.

Cryptographic Systems Engineer (Post-Quantum)

Markham, ON, Canada

Full-time

Apply on LinkedIn About employer

Applications open in a new tab.

Job details

Job type: Full-time
Work location: Must reside in the Greater Toronto Area
Posting language: English
Posted: Aug 5, 2026

Original job description

Job Title: Cryptographic Systems Engineer (Post-Quantum)

Office Location: 7303 Warden Ave. Markham, ON

Employment Type: Full‑time

Application Email: careers@superqubit.ai

SuperQubit is building a pioneering Post-Quantum Cryptography (PQC) bridge platform - a transparent local proxy that upgrades legacy application communications to NIST-approved quantum-resistant algorithms without requiring any modification to existing software.

As quantum threats accelerate, the vast majority of deployed legacy systems cannot be patched or rewritten to adopt PQC. We are solving that problem at the infrastructure layer.

This is a hands-on software engineering role at the intersection of post-quantum cryptography, systems programming, and operating-system internals - not a network administration position.

Role Overview

You will architect and implement the systems core of a TLS-intercepting PQC proxy: software that runs locally on a host, identifies outbound connections from legacy applications, determines whether the remote endpoint supports PQC, and transparently re-encrypts the communication using NIST-standardized post-quantum algorithms including ML-KEM and ML-DSA.

The work spans kernel-adjacent interfaces (eBPF / netfilter on Linux, WFP on Windows, NetworkExtension on macOS), TLS internals, and cryptographic engineering. You will work directly alongside our in-house PQC cryptography lead to integrate a Python/liboqs-based cryptographic engine into a high-performance Rust systems layer.

The platform is designed from the ground up for crypto agility and hybrid classical/PQC operation, in alignment with NIST and IETF transition guidelines.

Key Responsibilities

Design and implement a local TLS-terminating proxy in Rust that transparently intercepts outbound application traffic and re-encrypts it using post-quantum cryptographic algorithms.
Build a process attribution module that maps active network connections to the originating application, enabling per-application PQC policy enforcement at the OS level.
Implement PQC capability detection - negotiating with remote endpoints to determine whether they support post-quantum, classical, or hybrid handshakes, and routing traffic accordingly.
Develop and maintain a clean integration bridge between the Rust systems layer and the Python/liboqs cryptographic engine, using FFI, PyO3, or subprocess IPC patterns.
Implement a lightweight relay server that terminates the PQC-upgraded tunnel on the network edge, completing the end-to-end encrypted bridge.
Design a policy and configuration layer that governs which application traffic receives PQC treatment, passthrough, or hybrid handling.
Architect the codebase for crypto agility - ensuring algorithm modules are abstracted, versioned, and replaceable as NIST standards evolve.
Manage local PKI and certificate lifecycle: programmatic CA generation, certificate issuance, and OS trust-store integration required for transparent TLS interception.
Conduct security-focused code review with particular attention to key material handling, memory hygiene, and safe failure modes.
Maintain thorough documentation, version control discipline, and reproducible build practices throughout the MVP and beyond.

Minimum Requirements

Bachelor’s degree or higher in Computer Science, Software Engineering, Electrical Engineering, or a related field, with demonstrated focus on systems programming, cryptography, or low-level security software.
Proven hands-on experience building cryptographic or low-level network security software - TLS proxies, traffic inspection engines, VPN clients, encryption gateways, or equivalent.
Strong systems programming skills in Rust (strongly preferred) or C/C++, with experience in async I/O and high-throughput network programming.
Deep working knowledge of TLS 1.2 and TLS 1.3 internals - handshake mechanics, certificate chain validation, cipher suite negotiation, and SNI handling.
Working knowledge of modern cryptography fundamentals - symmetric and asymmetric primitives, key exchange, authenticated encryption, and an understanding of where post-quantum algorithms fit into the existing landscape.
Experience with OS-level traffic redirection and process-to-connection attribution on at least one platform - iptables / nftables / tproxy / eBPF on Linux, or Windows Filtering Platform (WFP).
Experience writing Python interoperability layers - FFI bindings, PyO3, ctypes, or subprocess-based integration with Python components.
Understanding of X.509 PKI, local CA operation, and programmatic certificate generation.
Must reside in the Greater Toronto Area.

Preferred Qualifications

Direct experience with liboqs, OQS-OpenSSL, AWS-LC, or Cloudflare CIRCL PQC libraries.
Familiarity with NIST PQC standards (FIPS 203 / 204 / 205) and IETF hybrid key exchange drafts.
Experience with eBPF or netfilter kernel hooks for low-level traffic capture and process attribution on Linux.
Relay or edge server development experience in Go or Rust for the server-side tunnel component.
Familiarity with PKCS#11, TPM, or OS keystore APIs (Windows CNG, macOS Keychain) for secure key material storage.
Contributions to open-source security, networking, or cryptography projects.
Comfort reading and implementing directly from IETF RFCs and NIST standard publications.

How To Apply

Send your resume, GitHub or relevant open-source contributions, and a short note on a systems or cryptography project you’re proud of to careers@superqubit.ai.

SuperQubit is committed to building secure, innovative technologies for the quantum era. We welcome applicants who are passionate about shaping the future of cybersecurity.

Apply on LinkedIn About employer

More about this job

Responsibilities

Design and build a local Rust-based TLS-intercepting proxy that attributes connections to applications, detects endpoint PQC support, and applies post-quantum or hybrid encryption policies. Integrate the Rust layer with the Python/liboqs cryptographic engine, develop the relay server, manage local certificates and trust stores, and maintain secure, crypto-agile code and documentation.

Requirements

Requires a bachelor's degree or higher in a relevant field, hands-on experience building cryptographic or low-level network security software, and strong Rust or C/C++ systems programming skills. Candidates need working knowledge of TLS internals, cryptography, OS-level traffic redirection and process attribution, Python interoperability, and X.509 PKI, and must reside in the Greater Toronto Area.

Skills

Rust
TLS
Post-Quantum Cryptography
Systems Programming
Network Programming
Python Interoperability
liboqs
eBPF
Netfilter
Windows Filtering Platform
PKI
X.509 Certificates
Cryptographic Engineering
Process Attribution
Async I/O

Visa sponsorship

Not detected in the job text

Keywords

Post-Quantum Cryptography
PQC
Rust
Python
liboqs
ML-KEM
ML-DSA
TLS 1.2
TLS 1.3
eBPF
Netfilter
Windows Filtering Platform
NetworkExtension
FFI
PyO3
Async I/O
X.509 PKI
Certificate Authority
Certificate Lifecycle
NIST FIPS 203
NIST FIPS 204
NIST FIPS 205
Hybrid Key Exchange
Crypto Agility
Traffic Redirection
Process Attribution
Local TLS Proxy
OS Trust Store
Key Material Security
IETF RFCs

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Jobs in Canada