Tamara Siem

SENIOR PRODUCT DESIGNER

I am a Senior Product Designer who creates clear, human‑centered digital experiences across government, corporate, and SaaS environments. I specialize in design systems, usability, accessibility, and I lead through strong communication, thoughtful collaboration, and a focus on solving complex problems with measurable impact.

Projects

  • Project zRoles

    zRoles

    Role granting product that provides employees access to various applications as well as certifying and reporting capabilities.

  • Project BEAR

    BEAR

    DOI’s BEAR is a reporting and analytics tool for the day-to-day needs of the contracting acquisition staff.

  • Project Trade Prospects

    Trade Prospects

    Search tool for importers and exporters by company, commodity, volume, location, and zip code.

  • Project E-Commerce Website

    E-Commerce Website

    It all begins with an idea. Maybe you want to launch a business. Maybe you want to turn a hobby into something more.

  • Project Enterprise Solution

    Enterprise Solution

    Enterprise trade tool combining shipment, partner, and demographic data with downloads and a dynamic dashboard.

View Projects

What people are saying

“Tamara’s product concepts contributed significantly to the evolution of our business.”

— David Holsinger
Director of Operations

“Tamara creates detailed designs and ensures everyone understands the ‘why’ to the design”

— Haley Stoltzman
Sr. Business Manager

“Even during high-pressure situations and tight deadlines, Tamara delivered.”

— Sara Subramanian
Lead Product Manager