Principal UI / UX Software Engineer and Full Stack Developer

Overview

We are seeking a Principal UI / UX Software Engineer with over 25 years of experience to serve as both a visionary architect and a hands-on developer for our next-generation products. This role requires a master practitioner who can not only set the strategic direction for user experience but also lead the technical implementation using leading-edge software development technologies. The ideal candidate has a deep history of translating complex business requirements into seamless, accessible, and performant user interfaces.

Essential Job Duties

Technical architecture and development : Lead the design and development of highly scalable, modular, and performant UI frameworks, design systems, and component libraries. Serve as the technical authority on the most complex front-end engineering challenges.

Strategic leadership : Define the overarching UI / UX technical strategy in alignment with product and business objectives. Provide vision and direction on innovative solutions that enhance operations and provide a competitive advantage.

Emerging technology integration : Evaluate and integrate bleeding-edge technologies, such as AI-driven UI, generative design, and advanced data visualization, into the user experience and front-end architecture.

Cross-functional partnership : Collaborate deeply with product management, backend engineers, and other stakeholders to translate user needs and business goals into high-quality, technically feasible products.

User advocacy : Champion user-centered design principles and usability standards throughout the development lifecycle. Translate design concepts into functional, high-quality prototypes and user interfaces.

Optimization and performance : Ensure the technical feasibility of UI / UX designs and optimize applications for maximum speed, scalability, and accessibility.

Minimum Requirements

Experience : 25+ years of progressive, hands-on experience as a UI / UX developer and software engineer, with a strong portfolio showcasing technical leadership and impact on complex digital products.

Technical mastery : Expert-level proficiency in modern front-end technologies, including :

Languages : JavaScript (ES6+), TypeScript, HTML5, and CSS3.

Frameworks : Deep, hands-on expertise with at least one major framework (e.g., React, Angular, Vue), as well as experience building and scaling component libraries and design systems.

Architecture : Extensive experience with modern UI architectures such as Micro-Frontends, modular UI design, and Serverless Frontends.

Tooling : Proficiency with modern build pipelines and tools (e.g., Webpack, NPM, Babel), testing frameworks, and version control (Git).

Strategic thinking : Demonstrated ability to translate organizational strategy and business requirements into scalable, maintainable, and performant technical solutions.

Communication : Exceptional verbal and written communication skills with the ability to effectively communicate complex technical concepts and architectural decisions to both technical and non-technical audiences.

Methodology : Proven experience in successfully delivering projects in an Agile environment and advocating for best practices throughout the SDLC.

Preferred Qualifications

Advanced degree in Computer Science, HCI, or a related field.

Deep expertise in the MERN stack (MongoDB, Express.js, React, Node.js).

Experience with advanced state management (e.g., Redux, NgRx) and back-end integration with RESTful APIs and microservices.

Experience with CI / CD pipelines, DevOps practices, and deploying applications to cloud environments like Amazon AWS

Work Environment

• Full remote flexibility.

Working at SOSi

All interested individuals will receive consideration and will not be discriminated against for any reason.

SOSi is an equal employment opportunity employer and affirmative action employer. All interested individuals will receive consideration and will not be discriminated against on the basis of race, color, religion, sex, national origin, disability, age, sexual orientation, gender identity, genetic information, or protected veteran status. SOSi takes affirmative action in support of its policy to advance diversity and inclusion of individuals who are minorities, women, protected veterans, and individuals with disabilities.