Jobs in Canada

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Added 1 min ago
Meat & Seafood - Manager Meat
Sobeys Capital Incorporated or a Franchise/Affiliate / ou une franchise/société affiliée
Grimsby, ON
Create a coaching and development culture for all store employees that embraces a passion for food
Added 16 mins ago
Business Intelligence Manager
Linamar Corporation
Guelph, ON
Full-time
…engineering resources, governance standards, and the ongoing development of the organization's Microsoft Fabric data…
Added 16 mins ago
Customer Support Team Leader
CWD
Niagara Falls, ON
$55,000 to $60,000 CAD / year
Full-time
Lead, support, and develop the Customer Support Team to achieve department objectives.
Added 16 mins ago
Sr. Product Marketing Manager (Technical Products) - Canada
ActiveProspect, Inc.
Remote, Canada
Full-time · Remote
…consent-based marketing. Reporting into the Enterprise Marketing Lead, you will be at the intersection of product development, sales, and marketing by driving go-to-market (GTM) strategies,…
Added 30 mins ago
Major Incident Management Specialist - Express Scripts Canada
Express Scripts Canada
Mississauga, ON
Full-time
Lead and champion the Major Incident Management process to ensure service is restored as quickly as possible through effective coordination, appropriate escalation, and meeting facilitation.
Added 30 mins ago
Assistant Produce Manager
Farm Boy Inc.
Toronto, ON
$21.5 CAD / hour
Full-time
Support team development through training, coaching, motivation, and recognition while maintaining a high level of trust, confidentiality, and professionalism.
Added 30 mins ago
Small, Medium, and Growth Business - Account Executive - Vancouver (Office-Based)
Salesforce
Vancouver, BC
Full-time
Added 30 mins ago
Produce Department Manager
Farm Boy Inc.
Toronto, ON
$57,500 to $62,500 CAD / year
Full-time
Develop and lead a high-performance team by overseeing recruitment, training, coaching, performance reviews, recognition, and ongoing development while maintaining confidentiality and trust.
Added 31 mins ago
Staff Software Engineer, OIN
Okta
Toronto, ON
Lead discovery and technical scoping for new requirements, turning ambiguous product asks into a concrete architecture, phased delivery plans, and credible estimates, in close partnership…
Added 31 mins ago
Senior Design Technician
GHD Group Pty Ltd
Vancouver, BC
Act as a technical lead for assigned project scopes, coordinating with internal teams, subconsultants, clients, and external agencies.
Added 31 mins ago
Design Technician
GHD Group Pty Ltd
Vancouver, BC
Act as a technical lead for a defined scope of work
Added 31 mins ago
Software Developer, Subsurface Applications (Associate - Senior) Landmark
Halliburton
Calgary, AB
We are looking for the right people - people who want to innovate, achieve, grow and lead. We attract and retain the best talent by investing in our employees and empowering them to develop…
Added 31 mins ago
Digital Solution Architect Lead Advisor
NTT DATA Services
Halifax, NS
We are currently seeking a Digital Solution Architect Lead Advisor to join our team in Halifax, Nova Scotia (CA-NS), Canada (CA).
Added 31 mins ago
Team Lead - Data Science
Intact FC
Toronto, ON · Montreal, QC · Quebec, QC
Full-time
…ensure smooth communication with stakeholders, guide talent development, and oversee the design of models and analyses that directly contribute to product performance, customer…
Added 46 mins ago
Manager of Public Affairs
Karis Disability Services
Waterloo, ON
Full-time
…developmental disabilities? At Karis Disability Services, you'll lead advocacy efforts, build influential relationships, and help advance policies that make a meaningful difference in…
Added 46 mins ago
Assistant Meat Manager
Farm Boy Inc.
Aurora, ON
Up to $21.5 CAD / hour
Full-time
Support team development through training, coaching, motivation, and recognition while maintaining a high level of trust, confidentiality, and professionalism.
Added 46 mins ago
Deli/Cheese Department Manager
Farm Boy Inc.
Whitby, ON
$55,000 to $60,000 CAD / year
Full-time
Develop and lead a high-performance team by overseeing recruitment, training, coaching, performance reviews, recognition, and ongoing development while maintaining confidentiality and trust.
Added 46 mins ago
Assistant Service Manager
Farm Boy Inc.
Barrie, ON
From $21.5 CAD / hour
Full-time
Support team development through training, coaching, motivation, and recognition while maintaining a high level of trust, confidentiality, and professionalism.
Added 46 mins ago
Assistant Chef Manager
Farm Boy Inc.
Barrie, ON
From $21.5 CAD / hour
Full-time
You’ll partner with the Department Manager to help lead the delivery of exceptional food and service experiences that reflect Farm Boy’s commitment to the best fresh shopping experience.…
Added 46 mins ago
Assistant Bakery Manager
Farm Boy Inc.
Barrie, ON
From $21.5 CAD / hour
Full-time
Support team development through training, coaching, motivation, and recognition while maintaining a high level of trust, confidentiality, and professionalism.
Added 46 mins ago
Director of Rooms Division (Full-Time)
AccorHotel
Ottawa, ON
Full-time
…excellence, colleague engagement, operational innovation, and talent…
Added 46 mins ago
Senior Software Developer, BE
Coursera Sourcing
Toronto, ON
As a Staff Software Developer on the Monetization team, you'll lead technical initiatives and take significant ownership over service architecture, product API development, and data…
Added 1 hour ago
Staff UX Designer
BeyondTrust
Canada
Full-time
Lead the adoption of AI-enhanced design practices, leveraging emerging tools to accelerate discovery, design, prototyping, and delivery. Produce developer-ready outputs, interactive…
Added 1 hour ago
Assistant Chef Manager
Farm Boy Inc.
Barrie, ON
$21.5 CAD / hour
Full-time
You’ll partner with the Department Manager to help lead the delivery of exceptional food and service experiences that reflect Farm Boy’s commitment to the best fresh shopping experience.…
Added 1 hour ago
Assistant Bakery Manager
Farm Boy Inc.
Barrie, ON
$21.5 CAD / hour
Full-time
Support team development through training, coaching, motivation, and recognition while maintaining a high level of trust, confidentiality, and professionalism.

SuperQubit Inc.

Cryptographic Systems Engineer (Post-Quantum)

Markham, ON, Canada

Job type: Full-time
Apply by: Oct 29, 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: 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.

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More about this job

Responsibilities

Build a local Rust-based TLS-intercepting proxy that attributes network connections to applications, detects remote post-quantum cryptography support, and applies PQC or hybrid encryption policies. Integrate the Rust systems layer with a Python/liboqs cryptographic engine, develop an edge relay, and manage certificate lifecycle, crypto agility, security reviews, and documentation.

Requirements

Requires a bachelor’s degree or higher in a relevant field and hands-on experience building cryptographic or low-level network security software. Candidates need strong Rust or C/C++ systems programming skills, deep TLS knowledge, cryptography fundamentals, OS-level traffic redirection and process attribution experience, Python interoperability experience, and X.509 PKI knowledge; residence in the Greater Toronto Area is required.

Skills

Rust
Post-Quantum Cryptography
TLS
Systems Programming
Network Security
Asynchronous I/O
Python Interoperability
liboqs
eBPF
Netfilter
Windows Filtering Platform
X.509 PKI
Certificate Management
Cryptographic Engineering
Process Attribution
Relay Server Development

Visa sponsorship

Not detected in the job text

Keywords

Post-Quantum Cryptography
PQC
Rust
Python
liboqs
TLS 1.2
TLS 1.3
ML-KEM
ML-DSA
NIST FIPS 203
NIST FIPS 204
NIST FIPS 205
eBPF
Netfilter
iptables
nftables
Transparent Proxy
Windows Filtering Platform
NetworkExtension
PyO3
FFI
X.509 PKI
Certificate Authority
Hybrid Key Exchange
Crypto Agility
Process Attribution
OS Trust Store
Relay Server
IETF RFCs
Key Material Security

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