Principal Software Cybersecurity Engineer

Confirmed live in the last 24 hours

ALTEN Technology USA

Westminster, Colorado

On-site

Posted April 29, 2026

Job Description

We’re ALTEN Technology USA, an engineering company helping clients bring groundbreaking ideas to life—from advancing space exploration and life-saving medical devices to building autonomous electric vehicles. With 3,000+ experts across North America, we partner with leading companies in aerospace, medical devices, robotics, automotive, commercial vehicles, EVs, rail, and more.

As part of the global ALTEN Group—57,000+ engineers in 30 countries—we deliver across the entire product development cycle, from consulting to full project outsourcing.

When you join ALTEN Technology USA, you’ll collaborate on some of the world’s toughest engineering challenges, supported by mentorship, career growth opportunities, and comprehensive benefits. We take pride in fostering a culture where employees feel valued, supported, and inspired to grow.

As Principal Software Cybersecurity Engineer you will be responsible for;

Design and implement anti‑tamper protections and embedded cybersecurity frameworks for safety‑critical and secure product lines.
Lead secure software engineering activities including code analysis, requirements evaluation, architecture reviews, and interface design to ensure robust system security.
Develop, test, and debug secure applications using languages such as C/C++, Python, and shell scripting.
Support cybersecurity validation and testing efforts across diverse platforms including embedded systems, RF technologies, and advanced hardware solutions.
Build and maintain embedded Linux environments, including creation and customization of Linux distributions using embedded build frameworks.
Collaborate in a cross‑functional engineering environment using Agile methodologies and modern development tools.
Contribute to system hardening efforts and ensure compliance with security standards and best practices across the development lifecycle.

Qualifications;

Bachelor’s degree or higher in Computer Science, Software Engineering, Cybersecurity, or a related technical field.9+ years of experience in software development or cybersecurity, including 5+ years focused on application security or system hardening in a senior capacity.
Strong background in software and system analysis, including code review, requirements assessment, and secure design practices.
Proficiency in C/C++, Python, and scripting languages for secure application development.
Experience working with Linux systems, including administration and development of embedded distributions.
Familiarity with modern development and collaboration tools used in Agile engineering environments.
Ability to obtain and maintain a government security clearance.
Possession of, or ability to obtain, an industry‑recognized cybersecurity certification (e.g., Security+, CISSP).

Salary Range: $150,000 - $235,000

Location: Onsite in Westminster, CO

The actual salary offered is dependent on various factors including, but not limited to, location, the candidate’s combination of job-related knowledge, qualifications, skills, education, training, and experience

Note: Due to the nature of the work, only US Persons (citizens or permanent residents) need apply for this position.

ALTEN Technology is an Equal Opportunity Employer. Our Policy is to extend opportunities to qualified applicants and employees on an equal basis regardless of an individual’s age, race, color, sex, religion, national origin, disability, sexual orientation, gender identity/expression or veteran status.

Please beware of job seeker scams and see this important notice on our careers page for more information about our recruiting process.

Compliance Notice: Alten USA is a federal contractor subject to the requirements of the Vietnam Era Veterans’ Readjustment Assistance Act (VEVRAA) and Executive Order 11246. We are an Equal Opportunity Employer and consider all qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status.

Drug Screening Requirement: As a federal contractor, Alten USA maintains a drug-free workplace. All candidates selected for employment will be required to successfully complete a pre-employment drug screening as a condition of hire.

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