As a senior electrical estimator, your job is to manage an estimating department and provide bid proposals accurate enough to make purchase orders. These estimates must take factors like labor, materials, databases, and updates into account to produce the most accurate price possible. Senior electrical estimators often evaluate work sites, help prepare documents for projects, track market pricing, and negotiate with architects to provide pre-bid services. When not examining a site, senior electrical estimators typically spend time working in an office and talking with other senior employees. On occasion, you may need to work overtime to meet bid response deadlines.