Jobs in Canada

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Added 21 mins ago
Project Manager, Capture and Optimization of Research Data (CORD) Platform
RI-MUHC | Research Institute of the MUHC | #rimuhc
Montreal, QC
Full-time
The Research Institute of the MUHC is seeking an interim Project Manager to join the Capture and Optimization of Research Data (CORD) platform of the Centre for Outcomes Research and…
Added 21 mins ago
Enterprise Sales Manager / Gestionnaire de vente entreprise
Hewlett Packard Enterprise
Montreal, QC
Full-time
…companies connect, protect, analyze, and act on their data and applications wherever they live, from edge to cloud, so they can turn insights into outcomes at the speed required to thrive…
Added 51 mins ago
ERP Business Analyst
Husky Technologies
Bolton, ON
Full-time
Husky TechnologiesTM offers a wealth of opportunity for personal growth and development. Most importantly, Husky Technologies TM offers an opportunity to work with – and be challenged by –…
Added 51 mins ago
Lead Advisor, Human Rights Office (Sexual Violence Prevention)
University of Ottawa
Ottawa, ON · Thompson Residence
Full-time
Applications must be received BEFORE (YYYY/MM/DD):
Added 1 hour ago
SENIOR SYSTEMS INTEGRATOR TECHNOLOGY SERVICES
City of Toronto
Toronto, ON
Leads, facilitates and contributes to the design, creation, development and sustainment of corporate standards for the division, including formalized project management and methodology,…
Added 2 hours ago
Software Developer – CRM – Intermediate - RQ10976
S M Software Solutions Inc
Toronto, ON
Full-time
General Skills Experience in programming and analysis; specialized CRM software package support at the specified experience level Ability to collaborate with IT Professionals throughout the…
Added 2 hours ago
Product Manager – Senior - RQ11625
S M Software Solutions Inc
Toronto, ON
Internship
We are seeking an experienced Senior Product Manager with strong expertise in Agile product delivery, enterprise mobile applications, user-centred design, product roadmaps, technical…
Added 2 hours ago
Systems Testing/QA Specialist – Senior - RQ11638
S M Software Solutions Inc
Toronto, ON
Internship
Knowledge and experience of structured methodologies for the development, design, implementation, and maintenance of applications.
Added 2 hours ago
Product Manager – Senior - RQ11625
S M Software Solutions Inc
Toronto, ON
Internship
We are seeking an experienced Senior Product Manager with strong expertise in Agile product delivery, enterprise mobile applications, user-centred design, product roadmaps, technical…
Added 2 hours ago
Product Manager – Senior - RQ11625
S M Software Solutions Inc
Toronto, ON
Internship
We are seeking an experienced Senior Product Manager with strong expertise in Agile product delivery, enterprise mobile applications, user-centred design, product roadmaps, technical…
Added 2 hours ago
Systems Testing/QA Specialist – Senior - RQ11637
S M Software Solutions Inc
Toronto, ON
Internship
Knowledge and experience of structured methodologies for the development, design, implementation, and maintenance of applications.
Added 2 hours ago
Software Developer – CRM – Intermediate - RQ10976
S M Software Solutions Inc
Toronto, ON
Full-time
General Skills Experience in programming and analysis; specialized CRM software package support at the specified experience level Ability to collaborate with IT Professionals throughout the…
Added 2 hours ago
Software Developer – CRM – Intermediate - RQ10976
S M Software Solutions Inc
Toronto, ON
Full-time
General Skills Experience in programming and analysis; specialized CRM software package support at the specified experience level Ability to collaborate with IT Professionals throughout the…
Added 2 hours ago
Systems Testing/QA Specialist – Senior - RQ11637
S M Software Solutions Inc
Toronto, ON
Internship
Knowledge and experience of structured methodologies for the development, design, implementation, and maintenance of applications.
Added 2 hours ago
Systems Testing/QA Specialist – Senior - RQ11638
S M Software Solutions Inc
Toronto, ON
Internship
Knowledge and experience of structured methodologies for the development, design, implementation, and maintenance of applications.
Added 2 hours ago
Systems Testing/QA Specialist – Senior - RQ11638
S M Software Solutions Inc
Toronto, ON
Internship
Knowledge and experience of structured methodologies for the development, design, implementation, and maintenance of applications.
Added 2 hours ago
Systems Testing/QA Specialist – Senior - RQ11637
S M Software Solutions Inc
Toronto, ON
Internship
Knowledge and experience of structured methodologies for the development, design, implementation, and maintenance of applications.
Added 2 hours ago
Business Analyst - GOAPRDJP000001026
S M Software Solutions Inc
Edmonton, AB
Full-time
Experience in the development of project documents for a wide variety of initiatives and projects, including strategic, business improvement, and information technology projects.
Added 2 hours ago
Business Analyst - GOAPRDJP000001026
S M Software Solutions Inc
Edmonton, AB
Full-time
Experience in the development of project documents for a wide variety of initiatives and projects, including strategic, business improvement, and information technology projects.
Added 2 hours ago
Business Analyst - GOAPRDJP000001026
S M Software Solutions Inc
Edmonton, AB
Full-time
Experience in the development of project documents for a wide variety of initiatives and projects, including strategic, business improvement, and information technology projects.
Added 2 hours ago
Robotics Technician
JENOPTIK AG
Barrie, ON
Participate in meetings for tooling design and development and work with the Applications Group
Added 3 hours ago
Sr. Tech Lead - Application Development N 4D
Jobgether
Canada
Full-time
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Sr. Tech Lead - Application Development N 4D based in…
Added 3 hours ago
RESEARCH COORDINATOR (I)
McMaster University
Hamilton, ON
Temporary
…research projects. The incumbent serves as a resource for the development of research protocols and study documentation, and supports study management operations and research management…
Added 3 hours ago
Sr. Tech Lead - Application Development N 4D
Jobgether
Canada
Full-time
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Sr. Tech Lead - Application Development N 4D based in…
Added 4 hours ago
Senior Product Manager - Digital Credential
GlobalVariable
Toronto, ON
Contract
Strong technical background with hands-on software development knowledge across mobile technologies (Kotlin, Swift, React Native) and backend services (Node.js, Go, Python).

SuperQubit Inc.

Cryptographic Systems Engineer (Post-Quantum)

Markham, ON, Canada

Job type: Full-time
Apply by: Oct 1, 2026
Posting language: English
Posted: Aug 5, 2026

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Original job description

Job Title: Cryptographic Systems Engineer (Post-Quantum)

Office Location: 7303 Warden Ave. Markham, ON

Employment Type: Full‑time

Application Email: [email protected]

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 [email protected].

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

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More about this job

Responsibilities

Architect and implement a high-performance Rust-based TLS-intercepting proxy to upgrade legacy communications to quantum-resistant algorithms. Develop OS-level process attribution and PQC capability detection to ensure secure, transparent re-encryption of outbound traffic.

Requirements

Requires a degree in Computer Science or related field with strong systems programming skills in Rust or C++ and deep knowledge of TLS internals. Must have experience with OS-level traffic redirection (eBPF/WFP) and reside in the Greater Toronto Area.

Skills

Rust
Post-Quantum Cryptography
TLS 1.2/1.3
Systems Programming
eBPF
Python
Network Security
X.509 PKI
C/C++
Linux Kernel
Windows Filtering Platform
Cryptographic Engineering
Async I/O
FFI
Network Programming
Security Code Review

Visa sponsorship

Not detected in the job text

Keywords

Post-Quantum Cryptography
PQC
Rust
Python
TLS
eBPF
Netfilter
WFP
ML-KEM
ML-DSA
liboqs
X.509
PKI
FIPS 203
FIPS 204
FIPS 205
IETF
PyO3
FFI
Network Security
Systems Programming
Cryptography
Linux
Windows
macOS
NetworkExtension
Cipher Suite
Handshake
Hybrid Key Exchange
OpenSSL

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