Full-Time

Lead UI/UX Designer

Posted on 6/30/2025

Cirkul

Cirkul

501-1,000 employees

Customizes hydration with flavored cartridges

No salary listed

No H1B Sponsorship

Tampa, FL, USA

In Person

Category
UI/UX & Design (1)
Requirements
  • Bachelor’s degree in Interaction Design, Human-Computer Interaction, Graphic Design, or a related field (or equivalent experience)
  • 5+ years of experience in UI/UX design with a strong portfolio demonstrating strategic and hands-on work
  • Proven experience owning design direction and managing programs/teams across major digital initiatives—ideally within eCommerce or direct-to-consumer (DTC)
  • Expertise in Figma, Sketch, Adobe XD, or similar design/prototyping tools
  • Strong understanding of user-centered design, conversion principles, information architecture, and responsive/mobile-first frameworks
  • Experience with A/B testing, user research, and data-informed decision making
  • Clear, confident communicator with excellent collaboration skills and comfort presenting to senior audiences
  • Experience working closely with marketing and eCommerce teams (DTC brand-specific experience is a big plus)
Responsibilities
  • Define and own a rolling 12 month UX roadmap, aligned to Web/Ecommerce and company-wide OKRs
  • Lead user research and usability testing to identify friction points and inform design strategies
  • Use data-driven insights, A/B testing, and performance metrics to iterate and optimize design solutions
  • Analyze customer behavior across channels and touchpoints to propose improvements
  • Own the end-to-end design process—from discovery to deployment—across mobile and web applications
  • Establish governance for a scalable design system, ensuring a consistent visual and interaction language
  • Translate business goals and user needs into wireframes, high-fidelity mockups, and clickable prototypes that balance near-term UX KPIs with longer term vision
  • Map customer journeys and user flows that enhance onboarding, discovery, and product engagement
  • Partner with Marketing leads, Product Managers, and Engineers to align design direction with brand, conversion, and product goals
  • Champion the user across cross-functional teams and be a trusted design voice in strategic conversations
  • Communicate design concepts and decisions clearly, building consensus among cross-functional stakeholders and incorporating feedback with ease
  • Maintain a user-first mindset while balancing technical constraints and business needs
  • Deliver beautiful, intuitive, and highly functional interfaces that elevate the user experience
  • Stay on the pulse of UX/UI trends, emerging tech, and digital behavior to constantly push our design forward
Desired Qualifications
  • DTC brand-specific experience is a big plus

Cirkul offers a hydration system with reusable BPA-free bottles and flavor cartridges that mix with water to add flavor and adjustable intensity. The bottles come in 12oz, 22oz, and 32oz sizes, with over 100 flavor options and a simple on-the-go customization as you drink. It sells these bottles and cartridges directly online and through subscription, creating recurring revenue. The goal is to make drinking water easier and more enjoyable to help people drink more water and build healthy habits, supported by a broad flavor lineup and a direct-to-consumer model.

Company Size

501-1,000

Company Stage

Series C

Total Funding

$111.5M

Headquarters

Tampa, Florida

Founded

2016

Simplify Jobs

Simplify's Take

What believers are saying

  • $70M Series C led by SC Holdings values Cirkul at $1.07B unicorn.
  • USA Swimming names Cirkul Official Hydration Supplier boosting credibility.
  • Eight new brands like Frosted and Squeeze Lemonade launched recently.

What critics are saying

  • Chinese copycats invalidate patents, eroding IP moat within 6-12 months.
  • Walmart cuts shelf space 40%, prioritizing Hint Water and Bubly.
  • FDA recalls cartridges for B vitamin overdose, sparking lawsuits now.

What makes Cirkul unique

  • Patented flavor cartridges enable hyper-personalized hydration in reusable bottles.
  • Over 150 flavors including Gateway Tea and Flyte Electrolyte expand options.
  • BPA-free bottles in 12oz, 22oz, 32oz sizes suit diverse lifestyles.

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Benefits

401(k) Company Match

Paid Vacation

Growth & Insights and Company News

Headcount

6 month growth

-1%

1 year growth

0%

2 year growth

4%
USA Swimming
Mar 1st, 2024
USA Swimming News

USA Swimming, the national governing body for swimming in the United States, today announced Cirkul as its Official Hydration Supplier.

Business Wire
Sep 7th, 2022
Correcting And Replacing Cirkul Expands Its Beverage Platform To Incubate And Launch New Brands, Announcing Rollout Of 8 New, Unique Beverage Brands

TAMPA, Fla.--(BUSINESS WIRE)--Please replace the release with the following corrected version due to multiple revisions. The updated release reads:

Business Wire
Sep 7th, 2022
Cirkul Expands Its Beverage Platform To Incubate And Launch New Brands, Announcing Rollout Of 8 New, Unique Beverage Brands

TAMPA, Fla.--(BUSINESS WIRE)--Cirkul, a beverage platform known for its patented flavor cartridges and reusable water bottle, is rolling out 8 new, unique beverage brands directly to consumers. Launched in 2018, Cirkul has maintained a line of 50+ flavors but this marks the first time that the company is launching entirely new brands within its platform. The brands include: Gateway Tea, Frosted, Fission, Squeeze Lemonade, Flyte Electrolyte, Verda, Stage Hydration, and Puressenece (full descriptions below). With these new brands, Cirkul is extending its mission of delivering a health-first, hyper-personalized, convenient product to consumers

Lunicorn
Jun 15th, 2022
Cirkul receives financing of $70M in Series C round

American startup Cirkul has raised $70 million in its Series C round, giving it a valuation of $1.07 billion, a new unicorn in Florida and yet another in the United States.

FoodBev Media
Jun 14th, 2022
Cirkul raises $70m in Series C funding round - FoodBev Media

Cirkul, a beverage company known for developing patented flavour cartridges, has raised $70 million in its latest funding round.

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