Bringing jobs to Tulsa, OK and beyond since 1995.
What We Do
Simply put, OakTree helps companies and job seekers achieve their goals more efficiently. Whether the need is to land a coveted position, fill a crucial role, or help manage contractors, consider it done and done professionally. OakTree has your back.
Proud To Be A Woman-Owned Business
Meet The Team - OakTree Staffing
Lisa Wilson, President | Owner
With a unique talent for motivating her team as well having a notable technical savvy, Lisa has been integral to the success of OakTree since day one. After graduating Oklahoma State University in 1986 with a Bachelor's in Computer Programming and Information Science, Lisa started her career as a computer programmer with Amerada Hess. After working as a Senior Systems Developer for Williams Energy, Lisa was part of a four-person team that founded OakTree Software, Inc. in 1995. Seven year later, Lisa became the sole owner and aimed to build a successful company that was conducive to the family lives of its employees. Because of her leadership, OakTree has not only made it through instances of downturn in the economy, but did so in a way worth meriting the company's addition to the list of 25 Best Small Companies To Work For in the nation by Working Mother Magazine. Lisa is a member of the Tulsa Chamber of Commerce as well as the National Association of Women Business Owners. In addition to her work with OakTree, Lisa works with and supports many local and national charities including Muscular Dystrophy Association, American Cancer Society, Oklahoma Mozart, Meals On Wheels and others.
Shelli Austin, Account Manager
About Me
My goal is to be an advocate for both our clients and our candidates. When you work with me, you can expect attention to detail, quality candidates, and follow through. Developing, building and maintaining solid, long-term client relationships that are mutually beneficial is my priority.
Salina Ornelas, Account Manager | Business Development
About Me
My career started out as an Account Executive for a local, Tulsa IT Managed Services provider. I realized that building & cultivating relationships had always felt like the best part of my job. I’m grateful to be able to focus on building relationships that later impact small to large corporations in finding skilled talent that adds value to their business. It’s a privilege to work with my OakTree team, as well as the folks who have given me an opportunity to partner with them & their business.
How do I spend time outside of OakTree?
Outside of OakTree I enjoy volunteering with local organizations that positively impact Tulsa, OK. I enjoy cooking, wine nights with friends, baseball games, tennis, golf (newbie), shopping with my daughter, Emily and traveling with my partner, Travis. When not traveling, you can typically find me snuggled up with our two dogs, Ferguson and Franklin.
Cassie Ogorzalek, Account Manager | Human Resources
About Me
I started at OakTree when I was a baby; at least that is what I tell people since I’ve worked here for 17 years. I started as the Admin Assistant while I was in college and as OakTree grew, so did my responsibilities. I think I have done every job there is to be done at OakTree at some point in the last 17 years, and I wouldn’t change a day of it.
I have been so lucky to be part of an amazing company with such an incredible leader! My only corporate experience has been under our owner, Lisa Wilson, so I tend to think a lot like she does-I’ve turned into her mini-me (good or bad! 😊).
How do I spend time outside of OakTree?
I recently got married last October, so I love spending time with my amazing husband! We travel as much as we can and hope to visit a new country each year. I play golf every chance I get and hopefully, if the rain stops this year, we can spend more time on the lake. We are HUGE Chicago Cub fans and can’t wait for baseball to start. I love animals, especially rescues, so we have 5 dogs and a one-eyed cat. I’m excited for Spring so I can start working in the yard. As you can tell, I love to be outside!
Not to brag, but I’m a pretty darn good cook. I even have a small business making gourmet-homemade Ice Cream sandwiches!
Sarah King, Recruiting Manager
About Me
I am the Recruiting Manager for OakTree Staffing. I have 15+ years of experience in the IT staffing industry. I am passionate about helping IT professionals achieve the next challenging step in their career. I work with clients from various industries on contract, contract-to-hire, and direct-hire positions. No matter what you are seeking in your next job, I can help you get there!
It is a “candidate’s market” in the tech industry right now. IT professionals are a hot commodity. Let me help you navigate through the noise to ensure your next career move is a success.
Recruiting Team
Josh Penley, Senior Lead Recruiter
About Me
One of my favorite things about my job here at OakTree is being able to help people as well as building meaningful relationships.
I started out with OakTree Staffing as an Intern, and now I have over 6 years of professional recruiting experience with a background in IT. I’m very grateful to work for such an awesome company!
How do I spend time outside of OakTree?
Outside of OakTree you can find me hanging out with my wife and our dogs along with doing random projects that my wife thought of for our home. I also enjoy exploring new places and being active outdoors.
Ashley Riedesel, Senior Lead Recruiter
About Me
Experienced Senior/Team Lead Recruiting Specialist with a demonstrated history of working in the staffing industry. I am passionate in helping others find opportunities that are the best fit for them, along with assisting our clients with providing the best candidates possible for their specific needs.
If you are looking to make a career move within the IT industry, please contact me directly, as I would love to assist you! If you are a hiring manager who needs assistance in filling a role on your team, please reach out to us as well!
Ashley is skilled in Negotiation, Sales, Management, Interviewing, and Recruiting. Strong human relations/sales professional, graduated from RSU with a BS in Organizational Leadership and Development.
Kamron Cox, Senior Recruiter
About Me
I’ve been with OakTree for nearly 14 years now. I started my career in Staffing with a firm in California. After some time learning the industry I decided to move back closer to family, and I chose OakTree for that career move. I mainly focus on IT, and it’s vastly changing landscape. OakTree understands the full commitment of helping people in their career, and the value of staffing for each client. It’s that value, and steadfast approach I still bring to the table today with every requirement that comes our way. I’m happy to be a part of the OakTree family, and grateful of all the friendships I’ve made!
How do I spend my time outside of work?
I play a lot of Golf, work in the yard/garden, take my Golden Retriever for long walks, ride bikes, play basketball, go to concerts, OU football games, Steelers football games, Royals baseball games, basically anything outdoors I enjoy.
Cassy Hendrix, Senior Recruiter
About Me
I’ve been in recruiting for over 10 years and have been with OakTree for around 2 and half years. I was brought on to focus on direct hire placements. I love being able to help an individual find a new career, and help our clients find that perfect person to join their company. I’m fortunate to get to work with a wonderful group of people and work for a great company!
How do I spend my time outside of OakTree?
I love spending time with my husband, our two daughters, and our two dogs. We like to be active, do things outdoors, and just veg out and watch movies.
Ryan Lauerman, Senior Recruiter
About Me
We help professional candidates find work and we help businesses find great and productive employees. For the past year, I’ve worked closely with local businesses to understand their professional staffing/project needs and to provide the most qualified candidates in professional positions for short- and long-term projects. As a full-service staffing provider, our solutions include evaluation hire, direct hire, contract staffing, professional search, and HR services. . My goal is to be a trusted, HR resource for candidates and small- to medium-sized businesses in my community. Because we’re members of this community, we have a vested interest in our city and want to help the people and businesses of Oklahoma City thrive and grow together.
Lacy McCullar, Recruiting Specialist
About Me
I am a Recruiting Specialist focused on IT Infrastructure here at OakTree. I joined the team here just 9 months ago and am so thankful that OakTree is where I chose to begin my career in recruiting. Our owner, Lisa, has created such a great work environment and we have a wonderful team that makes work fun every day! I love my job because I get to build relationships with so many amazing people while helping them build their careers.
How do I spend my time outside of work?
Outside of work my husband and I love to travel. We like going to new places but our favorites are Mexico and Belgium. I also enjoy painting, reading (classic lit!), going to art museums and indulging in true crime podcasts.
Jordan Provencher, Recruiting Specialist
About Me
I am one of the newest Recruiters to join the OakTree team and I have loved every bit of the last 7-months. Not only do I find my work rewarding and that it provides a healthy challenge, I love being apart of a woman-owned company and the culture that our president, Lisa, has instilled and the team that helps uphold it.
How do I spend time outside of OakTree?
Outside of OakTree I love to spend time with my husband and our two black cats. We enjoy going to the movies and binging anything true crime or dark and twisty. I love all things home design and pretty aesthetics, so I enjoy buying home decor, watching HGTV and creating pretty spaces when I can.
Julia Federline, Recruiting Specialist
About Me
I work for Oak Tree Staffing as a Technical Recruiter. I began recruiting a year ago and have truly enjoyed the work. My goal is to help you navigate the ever changing job market and help you into a new and exciting career – building relationships and partnerships in the process.
Administrative Team
Christina Armendariz, Administrative Assistant | Expenses
About Me
Originally from Albuquerque, NM, I am the Office Administrator and have been with OakTree for 8 years. Along with handling employee travel expenses and all things admin related, I also illustrate all the employee caricatures you see on the OakTree’s website. My co-workers are definitely my favorite part of working for OakTree because everyone has such a fun sense of humor. I mean, who doesn’t enjoy a good office prank, amiright!?
However, as much fun as we have here, everyone works hard and are dedicated to OakTree’s success!
How do I spend my time outside of work?
Outside of work I try to flex my creativity through painting, drawing or sculpting, my happy place is when I’m making art. I also love to cook New Mexican cuisine because everything tastes better with Green Chili!!
Brian Hughes, Staffing Coordinator
About Me
I’ve been in mostly a customer service roll for the bulk of my professional career. From Deli Manager to Musician to Managing a fishing operation and to my current role as Training Coordinator at OakTree IT. Helping clients by improving their experience as well as lightening the work load for my co-workers has been my main motivation and what I enjoy the most about any job.
I believe the most important qualities for any customer service role is empathy and competence. Understand where your client/customer is coming from and be true to your word. It can really be that simple!
Robin Smith, Accounts Payable
About Me
I am the Accounts Payable Coordinator and Assistant to the Director of Finance. I have been with OakTree for 3 years and have enjoyed every minute of it. We have such a wonderful team it’s a blessing to be associated with such dedicated people.
How do I spend my time outside of work?
I volunteer with a non-profit organization named Neighbors-In-Need. They provide food to families that need a helping hand feeding their families. As part of their organization, I started Pete’s Pals in Need providing dog and cat food to families needing assistance feeding the four legged members of their family. I also enjoy traveling, spending time with my family, and snuggling with my dog Bullet (yes I am an OSU fan).
Dannie Horton, Marketing | Billing | Employee Relations
About Me
I’ve been a part of the OakTree family for a year now. I handle the Billing and several different parts of administrative work, I also take part in the marketing for our social websites. Working for OakTree has been a big change for me coming from the Private Club Industry, but it has been the best change for my family and I. I love working for such a great team and an even better leader, Lisa Wilson.
How do I spend my time outside of work?
I love being active and outdoors! I enjoy sand volleyball, basketball, bike riding, camping, lake weekends- I’m for it all! Otherwise, you can find me with friends and family and spending quality time at the house playing cards, watching movies, and hosting company. Speaking of family, my family of 3 will soon be a family of 4 in August so I feel like I’ve been prepping all things baby lately!
Information Technology
