ABOUT US. Spectra Engineering & Research, Inc was established in 1990. Spectra has been in business for 33 years. Spectra is an Engineering Firm with expertise in: Civil Engineering, Environmental Engineering, Site Development, Land Surveying, and Construction Administration. Spectra has 2 offices located in Tallahassee and Orlando, FL. DUTIES AND JOB DESCRIPTION. Create and update records and databases with personnel, financial and other data. S...