Julien Herrero

"Julien hired me as a freelance designer to build the Delicorner MVP: functional mockups and a design system, on a product someone else had already started. Three months. What sets him apart is that he doesn't just drop a brief and wait for the deliverable. When I got stuck on a complex piece of business logic, he took the time to walk through it with me until it was clear. Plenty of Heads of Product think that isn't their job, yet it's exactly what saves you three weeks of rework. He also reads people extremely well: he pointed out things about me no manager ever had, and got the best out of them. If you're bringing a freelancer or an external team onto your product, Julien is the kind of Head of Product who gets them productive fast."

Hugo Ferrer

Freelance Product Designer

Delicorner

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"I worked with Julien on redesigns of internal platforms and customer-facing e-commerce interfaces. He turned those complex projects into real growth levers, with a clear, structured product vision focused on business impact. Julien is also an excellent manager: he sets a direction, gives his team ownership and stays available when it matters. Reliable, strategic and genuinely enjoyable to work with."

Liza A.

Freelance Product Manager

Delicorner

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"I worked with Julien for a year and a half as Cloud Growth Marketer, while he was Product Manager and Lead Designer of Rainbow at Alcatel-Lucent Enterprise. Being in charge of promoting Rainbow and its new features, I was constantly in touch with Julien to understand Rainbow and the product's upcoming projects. Julien is a great teacher and brings a fresh, dynamic vision to the product and his colleagues. Beyond his product management skills, he has a real sensitivity for marketing, which makes him a particularly pleasant colleague when you run product marketing. He is constantly eager to learn new things and always available and willing to discuss the product(s) he builds, which makes him an exemplary product manager. In short, what struck me most about Julien — and always will — is his curiosity, his energy and his ability to always see the glass half full! Thank you Julien!!!"

Lucie Le Louargant

Cloud Growth Marketer

Alcatel-Lucent Enterprise

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"Julien joined our team to rethink the customer experience of our briefing center, which hosted more than 300 international delegations. He reshaped the customer journey around new digital experiences and helped connect it to our marketing stack through automated onboarding and CRM integration. He also pioneered immersive VR-based solutions. Julien brings a positive attitude and puts all his talent into making each mission a success."

Yacine Mahfoufi

Head of Global Marketing

Alcatel-Lucent Enterprise

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"I'm delighted to recommend Julien, with whom I had the pleasure of working for a year at Kobi. Over that period he stood out for his technical expertise and strategic vision, and made a remarkable contribution to Kobi's growth. Under his leadership, the number of active users increased significantly. Julien combines strong analytical skills with a user-centred approach, turning complex challenges into innovative, effective solutions. His close collaboration with the design and engineering teams delivered products that not only meet but exceed user expectations."

François Lemarchand

Freelance RevOps

Kobi

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"I highly recommend Julien. During our collaboration at Kobi, he showed exceptional product management skills, a user-centred approach and a remarkable ability to lead complex projects. Julien excels at coordinating cross-functional teams, keeping communication smooth between engineering, marketing and design. He stays on top of market trends and product management best practices. Beyond his technical skills, he showed real leadership by motivating and mentoring team members. His adaptability and passion for innovation make him a valuable asset for any organisation."

Jordan T.

Freelance Lead Front-End

Kobi

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"I had the opportunity to work with Julien at ALE, where we collaborated closely on a range of projects. A strong leader, Julien is a genuine hard worker, always ready to take on a challenge and find clever solutions. He is highly conscientious and an excellent problem solver. But what makes him unique is his constant good mood and his smile. He always brings positive energy, making working with him both productive and enjoyable."

Mehdi Mebaoudj

Product Designer

Alcatel-Lucent Enterprise

"I worked with Julien Herrero on an assignment for Kobi. As Product Manager, he trusted me from day one and was always available to answer my questions. His organisation and flexibility made joining the team easy. I would recommend Julien to your company without hesitation."

"I worked hand-in-hand with Julien at Kobi, where the two of us made up the entire product team: him as PM, me as Senior Product Designer, and we built the product side by side (website and app). Julien bridged design and engineering really well. He has a great ability to define features with a clarity that makes everyone's life easier, and he proactively suggests improvements, including on design. Always listens, hardworking and genuinely nice: a daily pleasure. I recommend him with my eyes closed."

Raphaël Drion

Senior Product Designer

Kobi