Posted 2 days ago
Senior C++ Engineer
@ Semperis
Toronto, Ontario
Overview
Semperis is hiring a Senior C++ Software Engineer for system-level Windows work, including user-mode components injected into Windows processes and API interception. The role involves crash dump and BSOD analysis and components tied to Windows security protocols. The posting requires 7+ years of C++ experience and offers hybrid work with up to three office days per week.
Responsibilities:
- Design and implement high-performance C++ applications
- Develop user-mode components injected into Windows processes
- Perform crash dump and BSOD investigations
- Develop components for Windows security protocols
- Collaborate to resolve critical technical issues
Requirements summary:
- Bachelor's degree in computer science or related field
- 7+ years of C++ development experience
- Expert knowledge of Windows internals
- DLL injection and API hooking experience
- Advanced WinDbg proficiency
- Knowledge of SSPI, Kerberos, LDAP, RPC and DCOM
Tools & skills
Source and dates
Employer career site / ATS feed · ashby
- Employer posting date
- 2026-11-04
- First seen by our source
- 2026-11-04
- Source record updated
- 2026-11-04
These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.
Job details
| Seniority | Senior |
| Department | Software development |
| Experience | 7+ years |
| Hours per week | 40 (estimated) |
| Travel | air: none · ground: none |
| Work setting | Office, Home |
| Position | Mostly sitting |
| Physical demands | physical low · computer high |
| Languages | English |
| Education | Bachelor’s degree (required) |
| Fields of study | Computer Science, Software Engineering |
Summary and details written by AI from the posting; the employer’s posting is the authority.
Semperis
Saved company profile
Historical company information from a saved The Jobs API profile (LinkedIn/Crunchbase fields). It is not live-verified; figures may have changed. Missing values remain unknown.
Full company description
For security teams charged with defending hybrid and multi-cloud environments, Semperis ensures the integrity and availability of critical enterprise directory services at every step in the cyber kill chain and cuts recovery time by 90%. Purpose-built for securing hybrid identity environments—including Active Directory, Entra ID, and Okta—Semperis’ AI-powered technology protects over 100 million identities from cyberattacks, data breaches and operational errors. The world’s leading organizations trust Semperis to spot directory vulnerabilities, intercept cyberattacks in progress and quickly recover from ransomware and other data integrity emergencies. Semperis is headquartered in Hoboken, New Jersey, and operates internationally, with its research and development team distributed throughout the United States, Canada and Israel. Semperis hosts the award-winning Hybrid Identity Protection conference and podcast series (www.hipconf.com) and built the community hybrid Active Directory cyber defender tools, Purple Knight (www.semperis.com/purple-knight/) and Forest Druid. The company has received the highest level of industry accolades, recently named to Inc. Magazine’s list of best workplaces for 2024 and ranked the fastest-growing cybersecurity company in America by the Financial Times. Semperis is a Microsoft Enterprise Cloud Alliance and Co-Sell partner and is a member of the Microsoft Intelligent Security Association (MISA).
- LinkedIn followers
- 40,354
- People associated on LinkedIn
- 682
- Reported office locations
- 5 Marine View Plaza, Suite 102, Hoboken, New Jersey 07030, US
- 15305 Dallas Pkwy, Suite 1500, Addison, Texas 75001, US
- Shoham 2 Street, 7th floor, Ramat-Gan, Israel, IL
- 1000 Innovation Dr, Kanata, Ontario K2K 3E7, CA
- Business categories
- Information Technology
- Cyber Security
- Enterprise Software
- Identity Management
- Other recorded names
- Semperis
- Specialties
- Active Directory
- Disaster Recovery
- Identity and Access Management
- AD forest recovery
- Cybersecurity
- ITDR
- Hybrid Identity management
- Security Assessment
- Identity Threat Detection and Response
- Indicators of Compromise
- Indicators of Exposure
- Identity Security
- and Hybrid Identity
- Profile identifies a recruitment agency
- No
- Reported total investment
- 498,300,000
Currency and observation date were not supplied; this is not a current valuation or a funding round.
For security teams charged with defending hybrid and multi-cloud environments, Semperis ensures the integrity and availability of critical enterprise directory services at every step in the cyber kill chain and cuts recovery time by 90%. Purpose-built for securing hybrid identity environments—including Active Directory, Entra ID, and Okta—Semperis’ AI-powered technology protects over 100 million identities from…
| Field | Value |
|---|---|
| Industry | Computer and Network Security |
| Company size | 501-1,000 employees |
| Headquarters | Hoboken, New Jersey |
| Organization type | Privately Held |
| Specialties | Active DirectoryDisaster RecoveryIdentity and Access ManagementAD forest recoveryCybersecurityITDRHybrid Identity managementSecurity AssessmentIdentity Threat Detection and ResponseIndicators of Compromise |
| Open jobs on Jobsy | 3 |
| View page |
At Semperis, our mission is to be a Force for Good. Starting with being a great place to work. We believe that when people feel valued, supported, and empowered, they do their best work. That’s why we focus on creating an employee experience rooted in purpose, growth, and balance. Semperis has been recognized as one of America’s Fastest-Growing Cybersecurity Companies by the Inc. 5000, a DUNS 100 Top Startup to Work For, and a multi-year Inc. Best Workplace awardee.
We are seeking an experienced Senior C++ Software Engineer with strong
system-level programming expertise and advanced troubleshooting capabilities.
The ideal candidate will have a deep knowledge of Windows internals and be
passionate about solving complex technical challenges.
Key Responsibilities:
Design and implement high-performance C++ applications while
maintaining code quality and system stabilityDevelop and maintain user-mode components that are injected into sensitive Windows processes and intercept system APIs
Perform advanced crash dump analysis and BSOD investigations
Develop and maintain components that work with Windows security protocols
Collaborate with cross-functional teams to diagnose and resolve
critical technical issues
Required Qualifications:
Bachelor's degree in Computer Science, Software Engineering, or
related field7+ years of professional experience in C++ development with demonstrated senior-level expertise
Expert-level knowledge of Windows internals and system
architectureHands-on experience with DLL injection and API hooking (e.g., Microsoft Detours, MinHook) in production code
Advanced proficiency in WinDbg for crash dump analysis,
including:Strong understanding of x64 architecture
Extensive experience with WIN32 API
Ability to analyze and resolve BSOD issues
knowledge of Windows Authentication Architecture:
SSPI
Kerberos protocol implementation
LDAP protocol and directory services
Extensive experience with: RPC, DCOM
Strong understanding of memory management, thread
synchronization, and system resource optimization
#LI-HA1
Why Join Semperis?
You’ll be part of a global team on the front lines of cybersecurity innovation. At Semperis, we celebrate curiosity, integrity, and people who take initiative. If you’re someone who sees the glass as half full, embraces challenges as growth opportunities, and values a healthy balance between work and life—we’d love to meet you.
**Semperis maintains office locations in several cities across the globe. Where the job description specifies a required location, candidates will follow our hybrid work model. This includes working up to three days per week and remotely the remaining days.
Semperis is an equal opportunity employer and will not discriminate against an applicant or employee based on race, color, religion, creed, national origin or ancestry, ethnicity, sex (including gender, pregnancy, sexual orientation, and gender identity), age, physical or mental disability, veteran or military status, genetic information, citizenship, marital status, or any other legally recognized protected basis under federal, state, or local law. The information collected by the Semperis application is solely to determine suitability for employment, verify identity, and maintain employment statistics.
Applicants with disabilities may be entitled to reasonable accommodation under the Americans with Disabilities Act and/or other applicable state or local laws. A reasonable accommodation is a change in the way things are normally done which will ensure an equal employment opportunity without imposing undue hardship on Semperis. Please inform Semperis representative Anna Taylor, Director of Global Recruiting, if you need assistance completing this application or to otherwise participate in the application process.
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