Jobs in Canada

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Added 28 days ago
MC
Senior DevOps Engineer
Modern Campus
Canada
- Full-time
Participate in the on-call rotation, lead incident diagnosis, and carry out planned maintenance. Communicate clearly during incidents and use follow-up work, automation, and runbooks to…
Added 28 days ago
OS
Python Developer
Open Systems Technologies
Montreal, QC
- Contract
Hands-on experience in developing software with agile or scrum methodologies and are ready to lead our junior developer's team
Added 28 days ago
AM
Firmware Engineering Manager
Advanced Micro Devices, Inc
Markham, ON
- Full-time
We are seeking a seasoned firmware engineering manager to lead and grow the Data Center GFX FW team. This is a greenfield leadership opportunity: you will be responsible for building the…
Added 28 days ago
HT
Software Validation Technologist
Husky Technologies
Bolton, ON
- Full-time
…passion of our people around the world and their desire to lead change. At the same time, we are not afraid to expect a lot and strive for leadership in all of our key markets. We are a…
Added 28 days ago
VS
Solution Architect - CRM
vTech Solution Canada
Toronto, ON
- Contract
…solutions across the City’s technology environment. This role will lead both the functional and technical aspects of IBM Maximo solution delivery, including configuration, custom…
Added 28 days ago
M
Senior Security Engineer, Detection and Response
Marqeta
Remote, Canada
- Full-time
- Remote
As Marqeta's Senior Security Engineer on the Security Operations and Response team, you will lead incident response for North America and shape how we detect and respond to threats using…
Added 28 days ago
M
Senior Data Architect
Miratech
Toronto, ON
- Full-time
Working Model: This is a hybrid role requiring 2 days per week in a downtown Toronto office
Added 28 days ago
M
Senior Data Architect
Miratech
Toronto, ON
- Full-time
Working Model: This is a hybrid role requiring 2 days per week in a downtown Toronto office
Added 28 days ago
SI
Cryptographic Systems Engineer (Post-Quantum)
SuperQubit Inc.
Markham, ON
- Full-time
Must reside in the Greater Toronto Area
Added 28 days ago
SM
RQ11716 – Systems Testing/QA Specialist – Intermediate
S M Software Solutions Inc
Toronto, ON
- Internship
Work Arrangement: Onsite – 5 Days per Week
Added 28 days ago
CO
Application & Integration Technical Analyst
City of Saint John
Saint John, NB
- Full-time
Must have Class 5 driver’s license
Added 28 days ago
R|
Postdoctoral Fellow
RI-MUHC | Research Institute of the MUHC | #rimuhc
Montreal, QC
- Full-time
The individual must have recently been awarded (within 5 years) a PhD or equivalent · Must hold a PhD awarded (within last 5 years) a PhD or equivalent
Added 28 days ago
HT
Software Validation Technologist
Husky Technologies
Bolton, ON
- Full-time
…passion of our people around the world and their desire to lead change. At the same time, we are not afraid to expect a lot and strive for leadership in all of our key markets. We are a…
Added 28 days ago
S1
Full-Stack Machine Learning Engineer
Signal 1
Toronto, ON
- Full-time
…at University of Toronto's Rotman School of Management and lead at Creative Destruction Lab), with early backing from Geoffrey…
Added 28 days ago
SM
RQ11716 – Systems Testing/QA Specialist – Intermediate
S M Software Solutions Inc
Toronto, ON
- Internship
Work Arrangement: Onsite – 5 Days per Week
Added 28 days ago
SM
RQ11601 – Systems Testing/QA Specialist – Senior
S M Software Solutions Inc
Toronto, ON
- Full-time
Work Arrangement: Onsite, 5 days per week
Added 28 days ago
SM
RQ11601 – Systems Testing/QA Specialist – Senior
S M Software Solutions Inc
Toronto, ON
- Full-time
Work Arrangement: Onsite, 5 days per week
Added 28 days ago
SM
RQ11601 – Systems Testing/QA Specialist – Senior
S M Software Solutions Inc
Toronto, ON
- Full-time
Work Arrangement: Onsite, 5 days per week
Added 28 days ago
SM
RQ11716 – Systems Testing/QA Specialist – Intermediate
S M Software Solutions Inc
Toronto, ON
- Internship
Work Arrangement: Onsite – 5 Days per Week
Added 28 days ago
A
Firmware Engineering Manager
AMD
Markham, ON
- $140,800 to $211,200 CAD / year
- Full-time
We are seeking a seasoned firmware engineering manager to lead and grow the Data Center GFX FW team. This is a greenfield leadership opportunity: you will be responsible for building the…
Added 28 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 28 days ago
Q
Sr ASIC Design Verification Engineer, Low Power AI
Qualcomm
Markham, ON
- Full-time
Lead complex debug activities through the development cycle (pre and post-silicon)
Added 28 days ago
Q
ASIC/FPGA Design Verification Engineer
Qualcomm
Ottawa, ON
- Full-time
Experience with PERL, TCL, Python and C/C++ programmng
Added 28 days ago
L
ModiFace - DevOps Developer
L'Oréal
Toronto, ON
- Full-time
Note: This is a Hybrid positions, you will need to commute to our downtown office minimum 2 days per week with possibility of 3 days per week
Added 28 days ago
TT
Staff Software Engineer, AI Foundations (AI Agent Optimization)
Temporal Technologies
Canada
- Full-time
In this role, you will lead our agent optimization efforts. You will design tools and mechanisms to help Temporal users build agents that are optimized for token spend and response time…

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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Work requirements

Jobs in Canada