Strengthening the Core of Fitness

Mariana Tek offers a true enterprise business management platform that is driven by a world-class API. From the business side to the customer, we provide a suite of fully customized desktop and mobile products that allow fitness companies to run their business as they see fit.

Our Platform


Our platform is the best available in the fitness industry: well-built, highly configurable, and ridiculously scalable. Our API is world class, allowing easy integration with all kinds of partners. We can even build custom solutions to fit your needs. And our mobile apps crush it – your customers will thank you.


Our platform fully integrates with your website, using any design you choose, to create a seamless and frictionless experience for both your existing customers and prospects. They can easily sign up for classes, purchase customized credit or membership packages, bring guests, and take advantage of highly targeted offers and promotions. And our customized mobile apps will enhance your brand, as well as your KPIs.


We believe data is the key to everything. Our analytics include studio-level detail in every report, and allow you to create custom regional views – all with one push of a button. From class utilization, to sales details, to customer conversion and retention, you can unlock deep-level insights by using an unparalleled analytics suite. And if you’d like more, use our world class API to integrate with a BI solution of your choice, or access your complete data directly.


Our platform includes groundbreaking ways to maximize revenue per class. Our team comes from the fitness industry and knows first-hand that highly targeted features can have substantial impact on the bottom line. Couple that with a state-of-the-art platform built in 2017, and you can tune our tech to the opportunities you see for your brand. Please call us to learn more.


Mariana Tek has developed a suite of unique tools to identify, acquire and retain your high-value customers. Our proprietary segmentation system offers the ability to target customers with highly flexible and configurable products, offers and messages. Also, our platform allows complete funnel/ROI analysis on your paid ad campaigns (we don’t do i-frames).


Whether you have a handful of studios in the same city, or a network of locations across the globe, you want to maximize the benefits of your brand. Our platform provides high-impact features and tools to encourage cross-franchise/cross-studio cooperation and reciprocity, to provide flexible options for your customers, and help you run your business to maximize profitability.

About Us

Our Company

Mariana Tek, based in Washington, D.C., was founded by a team with deep experience in the fitness industry. The co-founders – Stacey Artandi Seldin, Bob Rademacher and John Huffsmith – are the architects who built, managed and scaled the entire technology platform at Flywheel Sports, widely regarded as the best-of-breed in boutique fitness.

Executive Team


Stacey Artandi Seldin
Co-Founder and CEO


Bob Rademacher
Co-Founder and COO


John Huffsmith
Co-Founder and CTO


Will Henning
Chief Marketing Officer


Shannon Tracey
Vice President, Business Development

Come work with us!

Working at Mariana Tek

We are a dedicated, ambitious and highly engaged team looking to have a positive impact in the fitness world, and have some fun doing it. We love being challenged, establishing new ways of doing things, and feeling the freedom to innovate.

We offer an attractive work life balance (we’ve got kids, pets and hobbies, too) and an interesting set of challenges to dig into. We develop products for both businesses and consumers, so your work will be seen, touched and loved by millions. We’re building industry-leading applications and world class APIs, working with big data, and designing interfaces that people love. And we are transforming an industry hungry for and receptive to innovation.

Our team is at an inflection point and is growing rapidly. The people who join now have the opportunity to have enormous impact, expand their skills, live outside of normal silos and be part of a diverse team that is deeply respectful of one another.

If you’d like to join our team, reach out to us by applying to a position listed below, or emailing We’ll reply.


We value our employees in many ways, including providing a robust benefits package that includes:

  • Competitive salaries
  • Stock options – having equity in the company enables the entire team to share in ownership and success
  • Health, dental and vision insurance – premiums are fully paid for employees and heavily subsidized for dependents
  • 401k with company match
  • Three weeks of vacation, federal holidays, and sick time
  • Life insurance and disability benefits
  • Generous parental leave
  • Smartbenefits for pre-tax allocations to Metro expenses, and Lyfts when you’re working late
  • Employee referral program
  • Weekly staff lunches, coffees, and in office snacks

Mariana Tek is an Equal Opportunity Employer. All applicants are considered for employment without regard to race, color, religion, gender, age, ancestry, national origin, disability, sexual orientation, veteran status or any other characteristic protected by federal, state, or local laws.

Open Positons

Let's talk!

Contact Us

For sales inquiries, please contact:


Shannon Tracey
VP, Business Development


For general inquiries: