Senior Embedded Security Developer

Lumentum Holdings Inc.; Ottawa; On-site; CAD 157,000 - 200,000; Full time

Benefits offered by this job

Flexible time off

Health and wellness benefits

Tuition reimbursement

Job summary

Lumentum Canada seeks a Senior Embedded Security Developer to design and implement security features for next-generation optical switch platforms. The role focuses on device identity, secure provisioning, network management security, and hardware-rooted trust across the product lifecycle.

You will work on TLS/mTLS, certificate lifecycle, and secure provisioning, building tests and supporting security reviews. A strong background in embedded Linux and cryptography is essential.

Qualifications

• 5+ years of embedded software development experience with security-focused systems.
• Strong Python or Go development; C/C++ familiarity.
• Experience on Linux-based embedded platforms; RTOS a plus.

Responsibilities

• Design, implement, and validate security features for next-gen optical switch platforms.
• Develop device identity, provisioning, and hardware-rooted trust across lifecycle.
• Implement and harden TLS/mTLS for control, telemetry, and management planes; manage certificates.

Skills

Python

Go

C/C++

Linux

Security

TLS

Mutual TLS

PKI

gRPC

gNMI

gNSI

Education

Bachelors in CS/CE/EE

Tools

OpenSSL

TLS libraries

Job description

## Senior Embedded Security DeveloperApply: Canada - Ottawa (Bill Leathem): Full time: Posted Yesterday: 20261524It's fun to work in a company where people truly BELIEVE in what they're doing! *We're committed to bringing passion and customer focus to the business.**If you like wild growth and working with happy, enthusiastic over-achievers, you'll enjoy your career with us!*Lumentum Canada was awarded the 2022 National Capital Region’s Top Employers *for the 6th consecutive year* and the 2022 Career Directory Canada’s Best Employers for Recent Graduates *for the 5th consecutive year*. **About Lumentum**At Lumentum, we’re building the tech behind the world’s fastest networks and most advanced systems. Our optical and photonic solutions power everything from AI and cloud computing to data centers, telecom, and advanced manufacturing.We’re a global team of innovators working where light meets technology, solving big challenges that keep the world connected and moving forward. If shaping the future of connectivity excites you, you’ll fit right in. **Why You’ll Love This Role**Lumentum is seeking a Senior Embedded Security Developer to design, implement, and validate security features for next-generation optical circuit switch platforms. This role focuses on device identity, secure provisioning, network management security, and hardware-rooted trust across the product lifecycle—from manufacturing and deployment through operation and recovery. **What You’ll Be Doing*** Design, implement, and maintain gNSI security services and their operational commands and workflows, including authorization, path authorization, credential rotation, and certificate management.* Implement secure zero-touch provisioning (Bootz) and device enrollment workflows, including bootstrap identity, credential issuance, trust establishment, and recovery.* Develop device attestation capabilities using TPM-backed identity and measured-boot evidence, including collection and validation of platform measurements.* Implement and harden TLS and mutual TLS for control, telemetry, and management planes, including certificate issuance, rotation, revocation, and trust-bundle updates.* Build security tests and automation; investigate defects; and support internal and external security reviews. **What We’re Looking For** **Education:**Bachelor’s degree in Computer Science, Computer Engineering, Software Engineering, Electrical Engineering, or a related field, or equivalent practical experience. **Experience: Core Requirements:*** 5+ years of embedded software development experience, including substantial work on security-sensitive systems.* Strong Python or Go development skills; familiarity with C or C++.* Experience developing for Linux-based embedded platforms; RTOS experience is a plus.* Practical experience with cryptography, PKI, TLS, and mutual TLS.* Understanding of network-device security and management protocols, such as gRPC, gNMI, or gNSI.* Experience designing or integrating secure provisioning, enrollment, credential management, or certificate lifecycle workflows.* Strong debugging skills and the ability to work across software and platform boundaries.* Clear written and verbal communication skills, including the ability to document designs and explain security decisions. **Preferred Qualifications*** Experience implementing or operating gNSI services such as authz, pathz, credentialz, or certz.* Experience with secure zero-touch provisioning, device attestation, TPM 2.0, measured boot, or hardware-backed device identity.* Knowledge of secure boot chains, hardware roots of trust, or manufacturing security.* Experience in telecom, networking, optical systems, or other embedded infrastructure.* Familiarity with security testing, automation, and vulnerability review processes. **Perks You’ll Love*** Flexible time off* Health and wellness benefits (physical and mental)* Tuition reimbursement and career growth support* A workplace built for you: free gym, games room, prayer room* Subsidized meals, free coffee/tea* Employee stock options and incentive plans* A collaborative, innovative, and inclusive culture**Salary Range**The salary range for this position is $110,000 - $140,000Final compensation will be determined based on factors such as experience, skills, and qualifications. In line with our commitment to being a great place to work, Lumentum offers competitive total rewards which may include annual bonus, equity, and comprehensive health and welfare benefits.**Join a Team That’s Shaping the Future**At Lumentum, we’re more than just a workplace—we’re a launchpad for creativity and innovation. We’re committed to celebrating your unique talents and helping you grow. Our guiding principles—Innovate, Engage, Deliver, Excel, and Win—aren’t just words; they’re the heart of what we do.**Let’s Build a Brighter Future Together!****We’re committed to building an inclusive workplace where everyone feels valued and empowered. We welcome applicants from all backgrounds and provide accommodations for individuals with disabilities throughout the hiring process. Your uniqueness makes us stronger, sparks creativity, and drives our success.*****Please contact us at*** ***[e-mail]*** ***to request accommodation.*****Join us—your future starts here!**