Senior Front-End Software Application Developer

Overview

LMI is actively seeking a dynamic, experienced Senior Front-End Application Developer with a strong background in modern UI/UX implementation creating dynamic, web-enabled applications. This role involves collaborating with UI/UX designers and back-end developers to translate design concepts into responsive, high-performance, and visually appealing web interfaces. This position can be located in Colorado Springs, CO or the Northern VA metro area.

LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing in technology and prototypes ahead of need, LMI brings commercial-grade platforms and mission-ready AI to federal agencies at commercial speed.

Leveraging our mission-ready technology and solutions, proven expertise in federal deployment, and strategic relationships, we enhance outcomes for the government, efficiently and effectively. With a focus on agility and collaboration, LMI serves the defense, space, healthcare, and energy sectors—helping agencies navigate complexity and outpace change. Headquartered in Tysons, Virginia, LMI is committed to delivering impactful results that strengthen missions and drive lasting value.

Responsibilities

• Develop user-facing features using web technologies and collaborating with UI/UX designers.
• Ensure the technical feasibility of designs, implement responsive design, and write clean, maintainable code.
• Participate in code reviews, debug developed code, and stay current with front-end trends.
• Collaborate with cross-functional teams, develop reusable code components, and ensure website accessibility.
• Actively participate in Integrated Product Teams (IPT’s) and other engineering working groups to review, assess, and mature engineering artifacts such as concept of operations (CONOPs), system architecture, system behavior, system interfaces, functional allocation, Interface Control Documents/Descriptions (ICDs), and data models.
• Provide meeting coordination, technical expertise, and software development to assist the customer decision makers.

Qualifications

Required:

• B.S. in Computer Science, Computer Engineering, or equivalent.
• 7 - 12 years experience as a Front-End Developer with a portfolio, and proficiency in modern languages such as HTML5, CSS3, and JavaScript (ES6+).
• Experience with modern front-end frameworks like React, Angular, or Vue.js and understanding of responsive design.
• Familiarity with version control systems (e.g., Git)
• Knowledge of web performance optimization.
• Strong problem-solving skills.
• Excellent communication and teamwork abilities.

Desired:

• Advanced degree in Computer Science or related.
• Experience with object-oriented programming languages such as Python, Java, C++.
• Experience with CSS preprocessors like Sass or Less.
• Familiarity with RESTful APIs.
• Experience with testing frameworks.
• Knowledge of web security practices.
• Active TS/SCI.

Candidate must be eligible to obtain a TS/SCI.

Target salary range: $109,000.00 - $189,000.00. Final compensation will be determined by a variety of factors including but not limited to your skills, experience, education, and/or certifications.