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Senior Software Engineer
Cryptography & Systems Development

Role Type: Senior Software Engineer / Technical Leader (Individual Contributor)
Core Technologies: C/C++, Cryptography, Python, Linux/POSIX, Systems Programming
Focus Areas: Secure software, cryptographic systems, cloud-native infrastructure, high-assurance applications
About the Opportunity
Our client is an innovative technology company developing advanced cybersecurity and secure communications solutions for high-assurance environments. Their engineering team builds software that combines modern cryptography, secure systems engineering, and cloud-native technologies to deliver secure, high-performance products for enterprise and mission-critical applications.

This is an opportunity to work on technically challenging software that addresses today's cybersecurity requirements while helping prepare organizations for emerging security threats.
Position Overview
We are seeking a Senior Software Engineer with deep expertise in systems programming and secure software development. This hands-on technical leadership role is ideal for an experienced engineer who can translate advanced cryptographic technologies into secure, scalable, production-ready software.

The successful candidate will influence software architecture, develop security-critical components, optimize performance, mentor engineers, and help deliver high-quality products in security-sensitive environments.
Key Responsibilities

• Design, develop, and optimize cryptographic and security-sensitive software using C/C++.
• Build and maintain production-quality software for secure, cloud-native environments.
• Drive architectural decisions focused on security, scalability, performance, reliability, and maintainability.
• Develop Python-based automation, testing frameworks, developer tools, and maintenance utilities.
• Review code for correctness, memory safety, concurrency, performance, and secure coding best practices.
• Implement and support secure networking technologies, including TLS, IPsec, and related communication protocols.
• Collaborate with engineering leadership, product teams, and cross-functional stakeholders to deliver customer-ready software solutions.
• Mentor engineers through technical guidance, code reviews, and knowledge sharing while helping elevate overall engineering quality.

Required Qualifications

• 7+ years of professional software engineering experience with significant C/C++ systems development.
• Demonstrated experience developing cryptographic, cybersecurity, or other security-sensitive software.
• Strong understanding of cryptographic implementation, secure coding practices, performance optimization, and software correctness.
• Experience optimizing low-level systems software for performance, reliability, and security.
• Proficiency with Python for automation, testing, scripting, and developer tooling.
• Strong debugging and troubleshooting skills in complex software environments.
• Experience with Git-based development workflows.
• Solid understanding of memory management, concurrency, compiler toolchains, and Linux/POSIX operating systems.
• Working knowledge of networking protocols and secure communications, including TLS and/or IPsec.

Preferred Qualifications

• Experience developing secure applications using Docker and Kubernetes.
• Familiarity with container security, software supply chain security, image signing, SBOM generation, and vulnerability management.
• Experience working with virtualization technologies such as QEMU or Linux KVM.
• Familiarity with AI-assisted software development tools and best practices for incorporating them into secure engineering workflows.
• Experience building software for regulated, safety-critical, or other high-assurance environments.

Education
Bachelor's degree or higher in Computer Science, Computer Engineering, Software Engineering, or a related technical discipline, or equivalent professional experience.
Preferred Certifications
The following certifications are considered an asset:

• Certified Kubernetes Application Developer (CKAD) or equivalent
• Docker Certified Associate or equivalent
• AWS Certified Developer or similar cloud certification
• Linux Foundation Certified Engineer (LFCE), Red Hat Certified Engineer (RHCE), or equivalent

Compensation & Benefits

• Competitive base salary of $150,000–$175,000 USD, commensurate with experience and qualifications.
• Comprehensive medical, dental, and vision coverage.
• 401(k) with employer matching.
• Competitive benefits package and opportunities for technical leadership and career advancement.

Why Join?
This position offers the opportunity to solve complex engineering challenges at the intersection of systems programming, cybersecurity, and modern cryptography. You'll work alongside experienced engineers on products where software quality, security, and performance are fundamental to success while helping shape the technical direction of next-generation secure software platforms.