**Overview** SOSi is seeking a highly qualified **Senior User Experience Designer** to provide UI/UX design support to our government customers. The ideal candidate will have proven UI/UX experience and experience working in the DoD or other Federal Government environment. This position will be located at Hanscom AFB, Massachusetts. **Essential Job Duties** + Collaborate with cross-functional teams to define user interface requirements and design innovative user experiences. + Develop and implement strategic vision for user interface designs, wireframes, prototypes, and specifications. + Align design concepts with user needs and mission outcomes. + Conduct user research, usability testing, and other user-centered design activities. + Create and maintain design guidelines, templates, and style guides. + Work with developers to ensure that design concepts are implemented accurately and efficiently. **Minimum Requirements** + Active in scope DoD Secret security clearance required. + 7+ years of experience in UI/UX design, product design and/or enterprise application fields or relevant customer-facing job roles. + 4+ years of UI/UX experience associated with cloud-based projects. + 4+ years of experience working in a DoD or other Federal Government environment. + Proven experience in user research, usability testing, and design thinking. + Strong visual design skills with a focus on clean, modern design. + Experience working in an Agile/Scrum development environment. **Work Environment** + Working conditions are normal for an office environment. + Fast paced, deadline-oriented environment. **Working at SOSi** All interested individuals will receive consideration and will not be discriminated against for any reason.