Really Casual Workplace

I recently interviewed for a position with a small environmental engineering firm. Of course, I wore a suit to the interview, but I noticed everyone was dressed VERY casually. Jeans and polar fleece. People also bring their dogs to the office, so it's a very laid-back atmosphere. It's looking pretty likely that I will be asked for a second pre-hiring interview with the owner of the company, and I'm at a loss as to what to wear to that interview. For that matter, I'm at a loss as to how to dress when/if I get the job. The position involves client contact as well as field work. I know I'd look ridiculous and pretentious if I showed up to work in a suit, but I'd like to dress a bit more professionally than jeans and sweatshirts when I'm in the ofice. Any advice?


There are two different questions here, and we'll tackle them separately.
First, the interview. A job interview isn't a day at the job; it's a business meeting to discuss the applicant's qualifications, or details of the offer, etc. As the candidate, you should dress in job-search attire. Perhaps the high banker's pinstripe suit, with black leather heels, isn't absolutely necessary here, since you have looked over the work environment, but don't go too far out, either.

Opt for a very slightly more casual suit, with a coordinating shirt; maybe a wrap top, and a skirt, and medium heels with round toes. Dress properly for your applicant's position at the meeting. It's endearing to the interviewers to show respect. They know that you can always loosen up later.
Here are a few inexpensive Pants suits that might work. (This link may change some of the items, so I can't vouch for all of them.)

About the work outfits, you should look over the usual for the office (at your level, or above) and mimic that, with one aim, to look ready for promotion. Field work may require clothes for rougher conditions. For more clement situations, be sure that your casual clothes are perfectly groomed. Cashmere is just as warm as polar fleece, and lots prettier. Your co-workers and supervisors are not likely to notice in a negative way, if your clothes are the same type as theirs, slacks and flat heels, but with the slacks fitting perfectly, and the shoes being up-to-date. There are some gorgeous, glowing cords out there that will look great while you are petting the dogs.

It's more difficult to build a wardrobe of casual looking perfect outfits than formal ones, but it is worth it.

Good Luck!