What’s the Difference Between a Programmer, Coder, Developer, and Software Engineer?

Even for those who are working in the technology industry, these titles seem to be very confusing. So, how do you differentiate between these terms and know what do they all mean and who do you turn to when you just need to get something done?
In reality, these terms are often used interchangeably, that vary from organization to organization, and can even mean different things depending on the circumstance. Let’s have a look at each title below and see what it means.

Coders
Anyone who can write some code is often referred to as a coder by the people outside of the tech industry. But, usually, coders are considered the least trained or experienced level of programmers. These individuals do not have the same algorithmic knowledge as a programmer or developer, as they are often a beginner in the field, skilled in just one coding language. Coders are usually given the job of writing forthright pieces of code that can easily be delegated by the developers. As some are put-off by the title, it is sometimes used interchangeably with “Junior Programmer” or “Junior Developer.”

Developers and Programmers
The titles Developer and programmer are often used interchangeably. They are more experienced code writers who are versed in at least two to three languages and write clean, error free codes. They can apply their algorithmic knowledge to create more sophisticated levels of software coding.

Developers in some firms are sometimes referred to as the start to finish overseers of a project, who are responsible for the overall design of the application.

Software Engineers
These are of the highest level among all, who are most expert coders around. They are well versed in three programming languages or more and use their skills to design and implement the overall architecture of the application. They modularize the final product to develop a clean interface and then work with the programmers and developers to implement the more detailed aspects of the design. An engineer position would usually imply that you are a developer who has a specific type of degree, some knowledge of engineering, and is capable of designing a system.

Now you know what do they do and whom should you approach, in case of any problem or help.

Reference From: https://fawadkhan.me/whats-the-difference-between-a-programmer-coder-developer-and-software-engineer/
also https://www.techworm.net/2016/09/difference-programmer-coder-developer-engineer.html