First Argue oment On mMy jJob

Proper capitalization in your title.
I think what you meant is argument.

I had amy first Arhueargument with a project manager.

“my first argument” sounds more natural than “a first argue.”

We disagreed about the delivery method.

Add “the” before “delivery method” for proper article usage.

It was a really deep talkingdiscussion, because he hadoes not have experience as a developer, so he did not know why we hasve a different workflow.

“discussion” for natural phrasing.
“does not have experience” for natural phrasing.
“we have” for subject-verb agreement.

In my opionion, this situation pointshowed that the developer and athe project manager were too closer to each other, this closes casues damaged into the product.

Spelling correction for "opinion."
“showed that”, “too close”, “this closeness caused damage” for natural phrasing.

We wanted athe best for the company, but we have a different approaches in this situation.

“the best.” for natural phrasing.
“different approaches” is the correct spelling.
Past tense “had” matches the situation described.

First Argue on my jment on the Job

I had amy first Arhuegument with a project manager.

It was a really deep talkingconversation, because he has not experience as a developer, so he did not know why we hasve different workflow.

I don't think "deep" is the word you want to use here. Deep would suggest that you delved into fine details. A deep conversation would be one where you really understand the other side and broaden your perspectives.

In my opionion, this situation pointedut that developer and a project manager too closer to each other, twhis closes casues damaged inch caused damages with the product.

We wanted athe best for the company, but we have a different approaches into this situation.

We never use "a" with something plural.

First Argue on my jobment at My Work

- Argue comes from the verb 'to argue' but 'argument' is the noun to describe that a dispute happened
- job is quite casual, the word work fits better here
- You are always 'at' work never on 'work'

I had amy first Arhueargument with a project manager.

We disagreed about my delivery method.

- I presume you are talking about you're delivery method so added 'my' otherwise it's unclear what exactly you are talking about

It was a really deep talkingconversation, because he has not experience as a developer, so he did not know why we hasve different workflows.

- Either 'has no experience...' or 'has not had experience...'
- Conjugations are I have, you have, he/she has, we have, they have -> need to use have not has because you are using we not he/she
- Because you are talking about two people, there are two workflows so workflow needs to be plural

In my opionion this situation pointedhighlights that the developer and a project manager are working too closer to each other, and this closes casues damaged in productproximity disrupts each others work.

- It was a bit unclear what you were trying to say so I did my best to rewrite it with what I thought you were trying to say. Let me know in comments if this wasn't what you were trying to say though

We wanted aboth want the best for the company, but we have a different approaches into this situation.

- Wanted is the past tense but I presume you both currently still want what is best for the company
- fixed some minor spelling

First Argue onment about my jJob

I had a first Arhuegument with a project manager.

We disagreed about the delivery method.

It was a really deep talking, because he has not experienced as a developer, so he did not know why we has different workflow.

In my opionion this situation pointed that developer and a project manager too closer to each other, this closes casuses damaged in product.

We wanted a best for the company, but we have a different approaches in this situation.