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Tenet3

Cybersecurity solutions for DoD cyber-physical systems

Junior Frontend Software Engineer

Full-TimePosted on 10/19/2026
$70k - $80k
Junior
Bachelor's
Dayton, OH, USA
Hybrid
Software EngineeringFrontend Engineering

About the job

Requirements
  • Proficiency in modern JavaScript, HTML, and CSS, including layout techniques, with direct experience building web interfaces using React and component libraries.
  • Knowledge of semantic HTML, responsive design techniques, version control systems such as Git and GitHub, and Agile tools such as Jira and GitHub Issues.
  • One to three years of experience in frontend development, including college internships, with an understanding of reusable design patterns and component architecture.
  • Clear written and verbal communication in technical discussions, including maintaining component documentation and conveying technical issues clearly.
  • Willingness to receive and act on code-review feedback, continuous learning, and contributing in daily standups and asynchronous platforms.
  • Ability to debug UI issues, propose targeted solutions when blocked, and connect frontend implementation choices with user needs and business goals.
  • A bachelor's degree in computer science, electrical engineering, mechanical engineering, civil engineering, mathematics, physics, or a related technical field.
Responsibilities
  • Build user-facing features using React, HTML, and CSS, following established design systems and accessibility standards.
  • Contribute to implementing and refining scoped tickets and user stories.
  • Participate in code reviews by incorporating feedback and applying best practices.
  • Debug common issues, identify performance or accessibility concerns, and raise blockers clearly.
  • Attend team standups, demos, and retrospectives; provide clear updates and seek feedback proactively.
  • Maintain component documentation and communicate changes clearly to teammates.
  • Implement responsive, accessible UI components using React and semantic HTML and CSS.
  • Follow established workflows, checklists, and coding standards in an Agile environment.
  • Enhance application performance, accessibility, and UI consistency.

About the company

Tenet3 delivers cybersecurity for DoD-scale cyber-physical systems, combining zero-day vulnerability detection, microelectronics inspections, and quantitative risk assessments using model-based system engineering (MBSE). Its MeTRA platform creates digital twins and digital threads across a system’s lifecycle to identify vulnerabilities and guide security investments, while MeTRA-HUB provides IL5 cloud hosting and BOMSquad analyzes SBOMs to spot risky C/C++ code. The company differentiates itself with defense-domain expertise, lifecycle-spanning digital models, and a closed-loop MBSE approach tailored to quantify risk and optimize security choices, rather than offering generic tools. Its goal is to harden critical defense infrastructure by delivering measurable risk reduction and strong support for Zero Trust architectures across hardware, software, and processes, under federal contracts and SBIR/IDIQ programs.

Company Size

11-50

Company Stage

Grant

Total Funding

$720K

Headquarters

Ohio, Illinois

Founded

2013

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Simplify's Take

What believers are saying

  • The Air Force added $3.36M in May 2026 for anti-tamper engineering.
  • SCOUT tracks $25.3M across ten award actions during the last year.
  • GSA leads buying for Tenet3, widening federal access beyond a single program office.

What critics are saying

  • Tenet3's revenue concentration in DoD awards creates lethal budget timing dependence.
  • SCOUT shows $69.5M Phase III and $750K SBIR work expiring by 2027.
  • SAM registration expires October 10, 2026, threatening award execution and recompete eligibility.

What makes Tenet3 unique

  • MeTRA turns cyber-physical systems into digital twins spanning as-designed, as-built, operating states.
  • Tenet3 holds AFRL IL5 approval and runs MeTRA®HUB on AWS GovCloud.
  • Jeff Hughes brings 40 years of DoD anti-tamper leadership into Tenet3's core offering.

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Benefits

  • Health Insurance
  • Dental Insurance
  • Vision Insurance
  • Life Insurance
  • Disability Insurance
  • Unlimited Paid Time Off
  • Flexible Work Hours
  • 401(k) Retirement Plan
  • 401(k) Company Match
  • Professional Development Budget
  • Conference Attendance Budget