On the notable work you could elaborate with providing a few fictional examples, using either redactions to not disclose full locations, or providing coordinates or other ways to keep this information from being fully disclosed. You could also provide some other notable works besides the designing of prisons, perhaps he could have designed some other things that would be of interest for the containment division, such as humanoid RPC containment wings referencing some of the current sites we have. In my opinion, that would add some more to the notable work and link him more to the Authority and would back up what you state later on his work experience as an Authority Senior Engineer.
A notable example of this reputation can be found in the many nicknames given to Dr. Isaac by lower clearance staff members, with names such as "Dr. Killjoy" being one of the more professionally acceptable examples. Frederick is well aware of these nicknames and has responded with, quote: "I don't give a damn." whenever they are brought to his attention.
The sentence delving into the examples of these nicknames is unnecessary in my opinion, the previous information helps establish the character, no need to delve into further details like these in my opinion. Doesn't add much and would be perceived as self inserty for some readers. I could say the same about the quote, I suggest you reword that part to:
Frederick is well aware of these nicknames, and has responded with apparent disinterest whenever these matters are brought to his attention.
Another thing I noticed, is that throughout the document you have referred to him only by Dr. Isaac, why go for first name basis for this sole instance?
advice regarding containment procedures
I noticed you mentioned this, perhaps an example of these could also be cited on his notable works?
begrudging respect
Not a particular issue with this, but being cold and harsh I would assume he would fit quite well with the ASF personnel and be respected as a senior member of the division.
My last recommendation would be perhaps add a brief section detailing any awards this person has received during their time at the Authority. It would add some more background for a respected high rank member.