The atmosphere is going to vary depend on the employer. Each business has its own culture with pillars that guide the behaviors of the people that work there. At the core, there are probably a few tenets that are universal: customer-focused, teamwork, inclusion, and innovation. With elements like those, you will see a focus on giving the customer what they want. That is being good at what you do and making sure that you are changing and growing with the trends of the business in which you work. No one can do the job alone. A really good product or service is the result of a combination of people working together to get a positive result. In this case, you are going to need to be good at communication, be flexible and creative when working with others. You should include as many perspectives as you can and be unafraid of trying something that you have never tried before. That means that you should strive to always be learning something new.
Those are high level elements that you may find at jobs. Other elements can be a little more toxic and you have to determine what you can live with. I have worked at places where the bosses expected you to work long hours, during holidays, etc. There are some places that have employees compete against each other for promotions, which hurts teamwork. You have to decide what culture you believe that you will thrive in. Do not be afraid to move on from an employer whose culture doesn't match your values.
On any job, a respectful atmosphere and zero tolerance is expected. Many businesses these days you can work remote, telecommunte (drop in cubes), office (dedicated spots). There are many different ways to communicate with teams (i.e., telepresence, office meetings, instant messaging, t-space, sharepoint).
Thank you for your question. Although each company will most likely have a different or similar type atmosphere you will work in, I'd like to share with you a few points with the type of atmosphere where I work.
Adaptive: We work in shared spaces. This is where some employees share a work area and do not have a designated wall-to-wall cubicle. You are out in an open space visible by all
Team Work: We work together to get things done and are passionate about our projects
Collaborative: We have web and video conferencing tools (ie, instant messaging, file sharing, team SharePoint sites (tSpace, Wiki), huddle rooms, etc.)
Fast-Paced: Technology is constantly changing. Strive to be adaptive and pivot to the changes. Structure is inevitable, so being flexible is key
These are just a few points regarding my work environment. I hope you find this helpful. Best of luck to you.