Senior Full Stack / UI Developer - 25k Sign on Bonus Job at Leidos Inc in Columb

Description Leidos has an exciting opportunity for a Senior Software Engineer to play a dual role in User Interface Development and Full Stack Development within our National Security Sector’s Cyber & Analytics Business Area . This position offers a chance to contribute to cutting-edge solutions in a mission-critical environment, leveraging innovative technologies to drive impactful results. At Leidos , we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match, immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security! This position is eligible for a $25k sign on bonus! Responsibilities User Interface (UI) Development Collaborate with Subject Matter Experts and Systems Engineers to refine system requirements and enhance user experience (UX). Design and develop intuitive UI components that maximize usability and performance. Implement React or similar UI frameworks ( Vue, Angular ) to build user-friendly interfaces. Full Stack Development Develop and maintain web services and interfaces that integrate seamlessly with UI components. Build new product features and APIs, ensuring scalable and efficient solutions. Contribute to front-end and back-end development processes, optimizing overall system performance. Perform testing, troubleshoot software, and apply bug fixes to ensure reliability. Qualifications Education & Experience: Bachelor’s degree in Computer Science or related field, plus 14 years of software development experience (or 18 years without a degree). Technical Expertise: Deep knowledge of Java, JavaScript, HTML, CSS, and Python , with strong proficiency in algorithm development and performance optimization. Front-End Development: Experience with React or similar UI frameworks ( Vue, Angular ), and advanced UI design skills. Back-End & Full Stack: Skilled in consuming and creating REST APIs and WebSockets , with expertise in AWS, Node.js, and Ruby on Rails . Software Engineering: Proven ability to design, optimize, and develop solutions for advanced computing environments . Cloud & Infrastructure: Hands‑on experience with AWS and modern software engineering principles . Preferred Qualifications Experience with JavaScript 3D libraries such as Three.js is preferred, but not required. Clearance Requirement Active T/SCI with Polygraph. Pay Range Pay Range $126,100.00 – $227,950.00. The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law. #J-18808-Ljbffr