Mid-Level Frontend JavaScript Software Engineer (Hybrid)

X-Bow Systems; Austin (TX); Hybrid; USD 80,000 - 110,000; Full time

Job summary

X-Bow Systems is seeking a Mid-Level Frontend JavaScript Software Engineer to build responsive, scalable web applications. This hybrid role in Luling, TX, will collaborate with designers, backend engineers, and product stakeholders to deliver high-quality UI features.

You will work with ES6+ JavaScript, modern frameworks (React/Vue/Angular), and build tools, ensuring performance, testability, and maintainability across projects for defense and commercial customers.

Qualifications

• 3–5 years of professional frontend development experience.
• Strong proficiency in JavaScript (ES6+), HTML5, and CSS3.
• Experience with React, Vue, or Angular frameworks.
• Familiarity with RESTful APIs and asynchronous data fetching.
• Version control with Git, and modern frontend build tools.
• Ability to write unit/integration tests (Jest/RTL/Cypress).
• Comfortable in Agile teams and collaborating with designers, backend engineers, and product stakeholders.
• Eligibility to obtain and maintain a Secret clearance; US Person per ITAR.

Responsibilities

• Develop and maintain user-facing features with clean, reusable code.
• Translate designs into high-quality, responsive UI implementations.
• Ensure UI/UX feasibility and performance, with scalable architecture.
• Collaborate with backend engineers to integrate APIs and data flows.
• Participate in code reviews and uphold best practices and tests.
• Stay current with frontend technologies and advocate for improvements.

Skills

JavaScript (ES6+)

React

Vue

Angular

HTML5

CSS3

Git

RESTful APIs

Testing: Jest/RTL/Cypress

Agile / Scrum

Tools

Webpack

Vite

Jira

GitHub/GitLab

CI/CD

Job description

X-Bow Systems is expanding and looking to fill a remote position for a Mid-Level Frontend JavaScript Software Engineer.

This position is located in Luling TX and classified as hybrid.

As an employee at X-Bow, you will serve a critical role in helping us execute advanced technology projects and programs for the U.S. Department of Defense (DoD), other government agencies, commercial customers and internal R&D initiatives. We are seeking a talented and motivated Frontend JavaScript Software Engineer (Mid-Level) to join our development team. You'll be responsible for building responsive, scalable, and maintainable web applications using modern JavaScript frameworks. You should have a solid foundation in frontend development principles, care deeply about user experience, and be comfortable collaborating with designers, backend engineers, and product stakeholders. As a key member of a small, dynamic, and highly skilled team, you will be expected to actively collaborate with others as well as work independently to accomplish assignments and responsibilities successfully.

Responsibilities

• Develop and maintain user-facing features with clean, well-documented JavaScript (ES6+)
• Translate UI/UX design wireframes into high-quality code
• Ensure the technical feasibility of UI/UX designs
• Build reusable code and libraries for future use
• Optimize applications for maximum speed and scalability
• Work closely with backend developers to integrate APIs and ensure seamless functionality
• Participate in code reviews and contribute to best practices
• Debug and resolve performance and usability issues
• Collaborate with QA engineers to write testable code and verify application behavior
• Stay current with emerging frontend technologies and propose their adoption where appropriate

Qualifications

• 3-5 years of professional experience in frontend development
• Strong proficiency in JavaScript, including ES6+ syntax and best practices
• Experience with HTML5, CSS3, and responsive web design
• Proficiency in one or more frontend frameworks such as React, Vue, or Angular
• Experience with version control systems, especially Git
• Understanding of RESTful APIs and asynchronous request handling (e.g., fetch, axios)
• Familiarity with frontend build tools such as Webpack, Vite, or similar.
• Ability to write unit and integration tests using tools like Jest, React Testing Library, or Cypress
• Comfortable working in agile teams using tools like Jira, GitHub/GitLab, and CI/CD pipelines
• Must be able to obtain and maintain a Secret clearance
• Must be a US Persons as defined by 120.62 of the ITAR

Soft Skills

• Strong communication and collaboration abilities
• Proactive mindset with a willingness to take ownership
• Passion for clean, maintainable, and testable code
• Problem-solving skills and attention to detail
• Ability to learn quickly and adapt to changing requirements

X-Bow Launch Systems, Inc. (pronounced "Crossbow") is a U.S. defense technology and rocket propulsion company that has developed an innovative, low-cost method to manufacture solid rocket motors. Our propulsion technology, space launch, and modular boost platforms make us a unique and highly desirable aerospace supplier to the defense and national security industries.

General Disclosure

X-Bow Launch Systems, Inc. is an Equal Opportunity Employer; employment with X-Bow Launch Systems, Inc. is based on merit, competence, and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.