Harris Microwave Communications is moving its headquarters to Durham from Silicon Valley.

The deal, which was underwritten in part by a grant from the state of North Carolina, is expected to create 258 new jobs in the Triangle over the next several years.

Harris already maintains an operation in Durham.

The NC Governor’s office helped lure Harris with a jobs development investment grant. The 10-year grant includes money equal to 69 percent of the personal state withholding taxes for jobs created. If all terms of the grant are met, the deal will net Harris $4 million.

“The JDIG (grant) was a major factor in our decision to relocate our headquarters to North Carolina,” said Guy Campbell, president of Harris Microwave, in a statement. “Our existing employees find this community an excellent place to live and work.”

Harris’ existing Durham office is located in Keystone Business Park.

The governor’s office said Harris also will pay nearly $1.3 million into the state’s Industrial Development Fund for infrastructure improvements in rural North Carolina. Such payments are required to receive a JDIG grant.

Harris’ current headquarters is located in Redwoodshores, CA.

Harris will be hiring people to fill marketing, engineering, finance and supply chain management positions.

Harris Microwave: www.microwave.harris.com