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Epirus

Software Engineer UI

Sorry, this job was removed at 12:10 a.m. (PST) on Friday, May 23, 2025
Hybrid
Torrance, CA
135K-155K Annually
Hybrid
Torrance, CA
135K-155K Annually

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About Epirus

Epirus is a high-growth technology company dedicated to overcoming the asymmetric challenges inherent to the future of national security. Epirus' flagship product, Leonidas, is a software-defined system built using intelligent power management techniques that allow power-hungry systems to do more with less.  


Job Summary: The ideal candidate for this position is someone who has a knack for elegant design and the know-how to build reliable web-based UIs. You will help bring designs to life, ensuring they are fully functional, responsive, and optimized for performance across various devices. You will be expected to contribute to all development lifecycle stages and collaborate closely with cross-functional teams to deliver high-quality user experiences. In this role, you will work closely with a talented front-end software engineering team.


Responsibilities: 
  • Developing a tactical application for a high level of responsiveness and reliability 
  • Write clean, maintainable, and reusable code using modern front-end technologies like HTML, JavaScript and TypeScript (React, Angular, Vue.js, etc.). 
  • Work with back-end developers to integrate front-end features with back-end services and APIs. 
  • Contribute to the continuous improvement of front-end development processes, tools, and best practices.
 Basic Qualifications:
  • Bachelor’s degree in Computer Science, Engineering, or related field, or equivalent experience. 
  • 2-4 years of professional experience in front-end development with a focus on UI design and implementation. 
  • Experience building UI applications using React, Node or Angular 
  • Experience with version control systems like Git 
  • Knowledge of basic UI/UX design principles and a passion for creating seamless user experiences 
  • Ability to work collaboratively in an agile development environment 
  • Strong communication skills and the ability to work well with cross-functional teams
 Preferred Skills and Experience:
  • Experience with TypeScript or other modern JavaScript tools 
  • Knowledge of UI testing frameworks (e.g., Jest, Cypress, Selenium) 
  • Experience with design tools (e.g., Figma, Adobe XD, Sketch) 
  • Knowledge of front-end build tools like Webpack, Babel, and NPM/Yarn 
  • Experience with CSS frameworks like Bootstrap, Tailwind CSS, or Material-UI 
  • Understanding of accessibility standards and best practices for building accessible user interfaces 
  • Experience with performance optimization for web applications


ITAR REQUIREMENTS: 

  • To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here.  

At Epirus, you’ll work with technical peers and great people—and get first crack at some of the defining technology challenges of our time. Here, “impossible” is just a challenge. We're a diverse, fast-growing team of change-makers fueling the future of energy with revolutionary solutions. Join us and rewrite the rules. 


As required by the Equal Pay Transparency Act, Epirus provides a reasonable range of minimum compensation for roles that may be hired. Actual compensation is influenced by a wide array of factors including but not limited to skill set, level of experience, and specific office location. 
For the state of California only, the range of starting pay for this role is:
$135,400$155,000 USD
HQ

Epirus Torrance, California, USA Office

Our company is located in Torrance, just off of the 405. We moved into our new 100,000+ square foot facility in November 2021 and love calling it home.

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