Sienna prides itself on its diverse and highly qualified staff. We are committed to the City of Buffalo and the Upstate New York region, and offer outstanding opportunities for professionals who wish to grow with us and experience the rebirth and revitalization of our region firsthand.

We believe that the role of each employee within Sienna Environmental Technologies is important, and promote a sense of wellbeing and competency in all our employees as it is crucial to our success. Sienna offers a friendly, non-competitive environment with supportive management. We encourage our employees to provide service to others and to use their strongest abilities to achieve their personal and professional goals. Sienna's policy is to have a workplace where there is equal employment opportunity in all employment-related matters, open communication and constructive and timely feedback to address each employee's concerns and expectations, a safe and healthy work environment, and an environment where there is zero tolerance of harassment, discrimination or retaliation against any employee by a co-worker, supervisor, customer or other individual.
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We are currently accepting applications for the following positions. Download application by clicking here.


Perform inspection duties associated with on-site construction and/or safety monitoring of contractors' activities and project assignments. Conducts field surveying; inspects work for compliance with design documents and/or regulatory requirements; identifies potential safety, code, constructability, and operational issues; keeps records to reflect as built conditions; computes quantities; reviews and provides comments on design development of contract plans and specifications; assist with site safety plans, job safety planning, and JHAs/JSAs; and provides assistance to other departments and projects as directed. Must bring a positive attitude and enjoy construction oversight and/or safety and demonstrate these attributes daily.


We are seeking employees for both entry level and experienced Designers and AutoCAD Technicians to assist with a vast array of projects. Responsibilities include preparation of architectural documents including but not limited to the following; design development and construction documentations of projects. Additional duties may include field investigations and monitoring, project management tasks, and working with architects, engineers, construction managers, and sub-contractors. 


Perform environmental consulting services including conducting building investigations for hazardous materials and conducting compliance monitoring. Collect samples of suspect hazardous materials for laboratory analysis, assess the condition of materials, and record and report findings in a clear and concise written format. Prior environmental inspection or consulting experience required. Ability to communicate effectively (verbal and written) and to work independently is a must. Candidate must have reliable transportation and ability to work flexible hours.


Perform compliance monitoring duties on a hazardous materials project by overseeing the scope, timing, phasing, and remediation methods to be utilized on the project. Collect air samples, create written record for abatement projects, and determine project completeness. Asbestos, lead-based paint, construction, or hazardous materials experience a plus. Ability to communicate effectively (verbal and written) and to work independently is a must. Candidate must have reliable transportation and ability to work flexible hours. Will train.


Perform the following daily functions within the PCM laboratory: sample log-in, sample preparation, analysis, quality control, compilation of laboratory reports and report compilation. Asbestos, geological, environmental or chemical laboratory experience a plus, previous microscopy experience required. Ability to work flexible hours a must.
Sienna is committed to equal employment opportunity in hiring, training, promotion, compensation, benefits, transfers and other personnel actions, without regard to race, creed, citizenship, religion, color, sex, national origin, age, disability, marital status, veteran status, sexual orientation, political affiliation, or any other characteristic protected by federal, state or local law.