Can a software engineer jump into sales and marketing?

EVERY BODY CAN JUMP INTO SALES AND MARKETING WHICH IS HAVING GOOD COMMUNICATION SKILLS AND HAVING VAST KNOWLEDGE ABOUT THE PRODUCT WHICH HE/SHE HAVE TO SALES/MARKET.
SALES AND MARKETING IS NOT A TOUGH JOB IF U WORK HARD AND IS NOT A SOFT JOB IS DONT TAKE TENSION OF YOUR WORK.

Ya y not.
WHEN DEY R JUMPING INTO RIVERS/WELLS (SUICIDE) DEY EVEN CAN JUMP INTO MARKETING.

Marketing is a job which needs only a positive attitude with any present machandise , good interpersonal and communication skills,being self or goal motivated nothing much or less. 

With that, this is the best job you can ever have which pays according to your input ,

And in life learning doesn't end, people changes careers due to what profits them or who can hire them 

I am that example, i have never done what i studied,yet,i fit in all environment 

the simple answer is yes you can.

just you have to have :

01. excellent communication skill.

02.have to know how to managw the people outside of your circle.

03. how encourage the people to the the unknown things.

I believe no matter what the occupation of an individual is he/she can be successful only if he/she is able to sell himself and a person who can sell him self is successful no matter what occupation they belong to.
Hence this is the key factor for any one to jump into marketing /sales

oh yes MR Sharvan RAO,You can work as software engineer for field of sales and customers relation managment to make the different types of sof twares for the facilitation of companies customers and for the improvement of the sales and customers relations.

yes he can, just he takes the next steps

The 8 steps to follow to sell on the Internet

- Create a brand and position it against competitors

- Choose a business model

- To comply with the law

- Create your website

- Manage e-commerce, financial and accounting aspects

- Make your brand known by working on its reputation

- Implement a customer acquisition strategy

- Heal technical support and customer service

Skills required for software engineering and sales/marketing are very different.
Successful people is sales/marketing do have good communication skills on top of other "social" and business skills.
If you feel that you have or can develop these skills, why not giving yourself a chance to switch and adapt to that different environment? Seriously, that move is more likely to succeed than the opposite: have you often seen sales/marketing guys who can successfully turn into software engineers? All the best

Yes. He can start by selling software application.

Yes, of course.

Why not?

Each industryhas it's sales nmarketing side, so has the computer science.

Generally, If someone interesting in one filed and pushes himself towards it, Why Not >

Technically, It is a little far from his field, can be near if he studies.