I am a software engineer in a start up of a popular group of companies in my region. My usual work week is 0830-1730 weekdays. Before joining with the current employer, I was a full time lecturer for an educational institute. Due to my performance there both as a student and as a lecturer, they offered me to visit them as a Visiting Lecturer on weekends. This reputation has allowed me to leverage another contact and secure another offer from a different educational institute to visit them as well. I am very much pleased on both because, one I really really love teaching/mentoring and two, I am getting paid hourly, which sums up to a really good paycheck at the end of the month.
The lecture sessions that I am conducting at the moment were originally supposed to complete by 25th of October. However, due to a recent adverse security status of the country, things have changed and the deadlines were shifted by about a month, by the awarding bodies of the respective qualifications (yes, awarding bodies have accredited these institutes to offer their courses).
Meanwhile, the Director Finance (who happened to be the unofficial head of my company, as well as the proverbial right hand of the CEO and the chairman of the group, here after referred to as DF) called me upon in the evening of 8th August 2019, and told me that there is an offshore work on Telco in Japan, that they want to send me. For the record, I am one of the 4 employees of the company who are having the JLPT N3 qualification. Yet, my Japanese is not so good due to lack of regular usage. He told me about the offer told that I am to go there. I said I had no problems in going but I want to know the exact date. His answer was "we'll work it out as soon as possible". I didn't consider much about the lectures that I am already doing, as I was not told about an exact deadline.
A week passes by and, on 20th August 2019, I got a PDF of the travel itinerary via email, from the chairman's PA. I was shocked to see that it was dated to 1st September 2019. When I asked about this from our representative to Japan (who is involving in most of these cases) he told that we will be travelling on 7th September 2019, and the date they have put in the travel itinerary is for Visa processing purposes. This conversation took over the phone and I then and there objected on the date due to the fact that I can't get out of the lectures I am doing all in a sudden. He said there's nothing he can do and I will have to talk to the Director Finance. After hung up, I immediately dropped an email (on 22nd itself) to the Director Finance, CCing the relevant parties.
To be frank, I of course can drop those institutes a mail stating that I am not going to visit them for 3 months from 7th September. But that will burn the bridges for me, with those two institutes. I really don't want to compromise my hobby as well as my monetary benefits. Also, I am pretty sure that I am going to suffer from the guilt of abandoning those kids who are learning from me, when they need me the most. So for me, it's both a moral and professional problem, a problem about my professionalism.
The DF didn't respond to my email until the morning of 22nd August, and I have confronted him on the same day and told him about the situation and I will need at least 2 weeks from the target departure date (7th September). His response was it is not possible to negotiate with the Japanese counterpart and I should work something out to complete the work for those institutes by 7th September. Even though he eagerly starts all the conversations in English. Yet his English sucks and he ultimately ends up bullshitting the way out of the conversation without actually resolving the problem. Same happened with me also and I told that I would see what I can do and walked out. Then straight away I spoke to the head of outsourcing (who is a subordinate of DF and the superior of out representative to Japan) and disclosed the recent developments of the problem to him. He also was aware of the whole story as he was in the email loop.
Just to see if their suggestions are at least remotely practical, I spoke to my reports on each institute 24th(Saturday) August 2019. Before I confronted them I came up with a revised set of lesson plans that shrinks down the delivery time of the lectures so that I can complete the work by 21st of September the earliest. Both of my contacts at each institute insisted that it is a far far distant reality to complete the work by 7th September. I had my reasons and they had their reasons, so it was a fact that completing the work by 7th is bullshit. Yet, they agreed to provide full support to complete the work by 21st of September.
I came home and composed a reply to the previous mail chain, outlining the concerns from the institutes and the concerns I have. I have ended the email being very clear that the earliest and the best I can do is 21st September, and sent this email (this is on 24th). Without stopping at that, I have sent a Skype chat to the Representative, mentioning about the email.
It's evening of 26th and by now it is almost 2 days since the last email I have sent. I still didn't receive any update on the matter. I am determined to stand my ground and to not to leave until 21st September, which I will have to complete the work with those institute.
I am starting to feel like that there is a huge problem of professionalism in the senior people whom I am working with here in this company. I also have a very bitter past with them with a lot of acts of dishonesty and lack of integrity. All of these add a lot to the bucket of disappointment I have about the company. Still, I am in no position to leave until October 2020, as I am on a legally binding agreement with them to retain with them for 4 years (yes, the stupidest thing I have done in my life).
What else I can/should do to make sure I won't compromise either my full time employment or the hobby? Note that I do not really care about anything in the employment other than retaining it until the maturity of the agreement.
EDIT: Thanks all for your tremendous effort in clarifying the problem and pointing so much worthy probes to overcome the question. Anyway, I made a decision and turned in my resignation with additional room for them to find the back up options. As the Director Finance got to hear about my resignation, he called me in, looked at me with his eyes on the forehead and asked "Why?". I calmly yet strongly established that I am getting nothing in return for the effort I put. Thanks again.. :) Proves over and over why Stack Exchange is really really making a difference..