Who We Are
Thirdlove disrupted the lingerie industry by empowering women to find their perfect fit online with our innovative Fitting Room® quiz and is one of the original brands to operate 100% direct-to-consumer. All design and R&D is done in-house, and our extensive and complex supply chain is fully managed by our team. Inclusivity is at the core of who we are and how we serve our customers and build our teams.
Traditionally, women were given a choice between two options when it came to their bras and underwear: Be sexy, or be comfortable. Our Cofounders: Heidi Zak and Ra’el Cohen, thought that was outdated too — so, in 2013, they created Thirdlove — a third, better option, which doesn’t force us to choose between being sexy or comfortable.
What Our Team Embodies
Our culture is collaborative, fast-paced, and data-driven, and we were most recently recognized with the Great Place to Work certification for the 5th year in a row. This recognition is given to a very small percentage of companies who apply for it and determined by employees’ real-time reports of their company culture. Earning this designation demonstrates to us that our team at Thirdlove is inspired by our mission, engaged in their everyday work, and enjoy partnering with our teammates and customers. If you want to impact millions of people, find your fit, and propel your career forward, we’d love to hear from you.
What We Are Looking For
The Senior Merchandise Planner drives demand forecasting and aligns tops-down/bottoms-up inventory plans for assigned ThirdLove product categories. They identify risks and opportunities, manage data and size curve integrity, and oversee SKUs and purchase orders. This role determines optimal investment levels across styles, sizes, and channels to hit sales and margin targets in an omnichannel environment. Responsibilities include aligning cross-functional plans and product-level forecasting/receipt plans.
This role requires strong cross-functional partnership, high proficiency in data analysis, and the ability to clearly and succinctly present detailed sales and inventory insights. Key to success is using strategy, insights, and intuition to speak to data and influence diverse audiences. The ideal candidate has strong analysis skills, experience with forecasting systems and OTB processes, and channel experience in a growing and dynamic retail landscape.
The Senior Merchandise Planner must be an excellent, proactive communicator, enthusiastic to learn, and detail/accuracy-oriented. They must ask questions, share knowledge, and thrive in a collaborative, fast-paced team environment.
What You Will Own And How You Will Make A Difference
Who You Are
ThirdLove Offers You
Diversity
ThirdLove is an equal opportunity employer and values diversity at the company. We do not discriminate on the basis of race, religion, color, national origin, gender, gender identity or expression, sexual orientation, age, genetics, marital status, veteran status, or disability status.
ThirdLove is an E-Verify employer and will provide the federal government with your Form I-9 information to confirm that you are authorized to work in the U.S. For more information please visit E-Verify
Compensation
90-130K annual base compensation range

Thirdlove is a female-founded lifestyle brand that offers elevated essentials, including bras, undies, loungewear, lingerie, and bra-sized swimwear, designed by women. Co-founders Heidi Zak and Ra’el Cohen set out to revolutionize the bra shopping experience, focusing on creating products that make customers look and feel amazing while addressing common problems. The resulting solution-driven designs get Bra-blems Solved™–with style.
At Thirdlove, our teammates take ownership, are curious and adaptable, and constantly innovate with grit and focus. Our culture prioritizes individual goals and development so that every teammate can become the best version of themselves. We’ve been certified as a Great Place to Work® for five years in a row.
In 2022, we opened retail stores nationwide, including one in San Francisco, our home city. In 2024, we expanded our reach to select Neiman Marcus locations and Amazon.
We support the planet through recycling programs like the Take Back Bag and the community through partnerships with non-profits like the SF LGBT Center and I Support The Girls. With the help of such partners, Thirdlove is the largest donor of undergarments in the US, distributing over $50 million of products to those in need.
To learn more, visit www.thirdlove.com.