Major strength
Adaptability

Major weakness
low tolerance to ineffectiveness

In what sort of a job am I most effective ?
I have no doubt or reservations in saying that as camp counselor and director I found the most fulfilling work I have ever done. It was so because it combined so many of my interests and skills, improved on them, and left even many years later the satisfaction of a job well done. A challenging environment where I was able to share my knowledge and get involved in helping other people grow while I grew myself.
Thus, be it when programming computer software, or teaching a class, or whatever I work in, I find my effectiveness enhanced if the job gives chances for challenge, sharing with others, and worthwhile teaching.

In what sort of a job am I least effective ?
From 1986 to 1995 I was a teacher for the Uruguayan National Education Administration.
For a long time the thrill of being part of the educational process kept me keen and effective, but eventually I noticed that the whole system was internally built on the pretense that it was the ONLY valid way for transmission of knowledge, and that in fact that so-called knowledge was in the best case quite useless and often wrong and damaging.
A lot of attention was paid to form-filling and bureaucratic requirements, while the results of the actual learning process were rather unimportant to the Administration. In any case the contents taught was quite irrelevant to actual life use (can you believe mandatory Astronomy classes ? Or mandatory French instead of English ?)
Eventually I noticed I was beginning to adapt to the mold of the typical Uruguayan teacher. Becoming routinary in the way I treated my students, conformist, easy-going and laid-back, I sensed it was high time to move on before I lost all sense of purpose.