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Senior Windows Internals Engineer

Transmit SecurityTel Aviv, Israel | Yafo | Gush Dan, IsraelOnsite

Transmit Security is a recognized leader in identity and security, revolutionizing authentication and fraud prevention with cutting-edge technology.
As we gear up for an exciting year, we are looking for exceptional engineers to tackle large-scale, complex challenges in security and authentication.The FlexId Group is at the heart of our mission, responsible for building the infrastructure and features that power our core identity platform.This is an opportunity to work on high-impact, large-scale distributed systems that shape the future of identity security.

About the Role


We are looking for an experienced C++ Software Engineer to develop high-performance client-side applications that integrate deeply with Windows OS.This role is ideal for someone who is passionate about system-level programming, security, and optimization.As a key member of the FlexId team, you will be involved in designing and implementing critical features, ensuring seamless Windows integration, and addressing complex security challenges.

What you’ll do:


  • Develop and optimize Windows-based client applications using modern C++.
  • Work closely with Windows OS components, including Windows Registry, COM API, Windows Events, and system services.
  • Design and implement security-related features, integrating cryptographic protocols and authentication mechanisms.
  • Debug, profile, and optimize performance to ensure reliability and efficiency.
  • Collaborate with backend teams, security experts, and product managers to deliver secure, scalable solutions.
  • Stay ahead of industry trends in security, Windows development, and authentication technologies.

What you’ll need: 


  • 5+ years of hands-on experience in C++ software development for client-side applications.
  • Strong understanding of Windows internals, including services, registry, COM API, and event handling.
  • Experience with performance optimization, debugging, and multi-threaded development.
  • Knowledge of security protocols and cryptographic principles (RSA, SHA, Certificate Authority, Kerberos) is a plus.
  • A self-starter with a “get things done” attitude and a problem-solving mindset.

#LI-AM1 #LI-Hybrid 

Life at Transmit Security

Transmit is the leader in Identity Orchestration. The company's technology enables large enterprises to standardize and simplify their identity infrastructure to accelerate and reduce the cost of new account opening, authentication, authorization, compliance and fraud prevention related initiatives. Transmit Security's founders created Trusteer (now IBM Security) and Imperva (IMPV on NYSE). The company's research and development team served in the Israeli Intelligence Corps elite 8200 Unit. Transmit Security is self-funded, and based in Boston and Tel-Aviv.
Thrive Here & What We Value- Innovative SaaS product- Customer identity management, identity verification, fraud prevention solutions- Diversity and inclusion culture- Collaborative work environment with a focus on innovation- Remote work options- Serving large enterprises (e.g., banks, insurers)- Customercentric approach to business- Flexible work arrangements

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