I am currently working as an electronic/software engineer at small Australian company.
I started here as a part of my work experience required by my university. After I graduated, I have continued to work there for around a year and a half. I was mainly hired on to assist the company's sole electronic engineer develop an electronic access control system. My role was to mainly focus on software as my degree focused on more computer systems and network engineering, while he focused on the hardware as he had a more pure electronics background.
My supervisor (the electronic engineer mentioned before) has recently left the company. This now leave me as only person in the company with knowledge when it comes to anything electronic or computer related. (The majority of the product development team are mechanical and manufacturing engineers).
When I ask management about their plans to find a replacement, I am told that they don’t plan on finding a replacement and that they believe that I am capable of handling both software and hardware. As part of my studies, I was introduced to the fundamentals of electronic hardware design, but anything more than the fundamentals I am still currently trying to teach myself.
Recently I demonstrated a functioning prototype of the system as a proof of concept. I stressed that it was just a prototype and it still requires a lot of work and testing, but management now consider it complete and sales have started giving customers quotes. Most of these quotes have been for large installations where the customer also wants considerable customisations and additional features.
The more this project grows the more difficult it becomes for me to manage on my own. When I try to communicate this, the responses I typically get usually are things like “I know you can do it because you are a genius at that computer stuff” or “I don’t really want to hear that, we need those orders to make the budget. Just make it work”.
Are there any better ways I can communicate my situation to without appearing either lazy or incompetent to my management?