Guillaume Lebedel (StackOne)

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Overview

Guillaume Lebedel is a prominent figure in the tech startup ecosystem, best known for co-founding StackOne, where he serves as Chief Technology Officer (CTO). StackOne is a company specializing in providing a unified integration platform for SaaS enterprises, aiming to streamline API connectivity across various business tools like HRIS, ATS, CRM, and marketing domains. Lebedel, alongside Romain Sestier, established the company in 2023, leveraging his considerable experience in software development and product integration.

Recent Developments

  • April 2025: StackOne raised $20 million in Series A funding led by Google Ventures, with participation from other notable investors like Workday Ventures and XTX Ventures. This funding round aims to bolster StackOne's offerings in AI agents and real-time integrations. Source
  • December 2024: StackOne launched StackChat, an AI copilot designed to assist with API integrations by offering seamless support and more accurate integration solutions than existing models like GPT-4. Source
  • March 2024: The company successfully acquired $3.6 million in seed funding from Episode 1 Ventures and Playfair Capital to expand its presence in the US, EU, and Australian markets and enhance its unified API offerings. Source
  • May 2025: StackOne's innovations and growing market influence led to Google Ventures' interest, making it one of the few startups backed by this notable venture group. This indicates significant investor confidence in StackOne's market potential. Source
  • April 2024: Guillaume Lebedel's LinkedIn activity reflects a focus on leveraging AI for business growth and navigating complex integration challenges, underscoring his commitment to innovation in product development at StackOne. Source

Personal Information

AttributeInformation
Full NameGuillaume Lebedel
BornDetails not publicly available
NationalityFrench
OccupationCo-Founder & CTO at StackOne
Known ForCo-founding StackOne, a SaaS integration platform
Net WorthNot publicly disclosed
EducationMaster's degree from EPITECH - European Institute of Technology, also studied at California State University-Long Beach
ResidenceUnited Kingdom

Early Life and Education

Guillaume Lebedel was born in France and pursued higher education in computer science at EPITECH - European Institute of Technology. He expanded his horizons by studying at California State University, which contributed significantly to his understanding and appreciation of global tech ecosystems. These academic experiences not only provided him with a solid technical foundation but also shaped his entrepreneurial aspirations.

His formative years in France and scholastic endeavors in the United States equipped Lebedel with a diverse set of skills, preparing him for a dynamic career in technology. Influenced by an era of rapid technological change and digital transformation, Lebedel was naturally drawn to software engineering and business innovation.

Career and Notable Achievements

After completing his studies, Guillaume Lebedel embarked on a career marked by strategic roles in leading tech companies:

  • Oracle @ Maxymiser (2013 - 2014): As a Solutions Engineer & Developer, he honed his skills in integration and analytics.
  • LeanConvert (2016 - 2017): Worked as a Software Engineer, focusing on conversion rate optimization platforms.
  • Yieldify (2018 - 2023): Before founding StackOne, he was the Vice President of Engineering, supervising technological strategies and scaling infrastructure.
  • Upper.ai (2017 - 2018): Co-founded Upper.ai, an AI-based analytics firm, further solidifying his role as an innovator in tech startups.

Current Work and Impact

At present, Guillaume Lebedel remains pivotal in StackOne's strategic and technological direction. Under his technical leadership, StackOne has become a frontrunner in providing standardized, real-time API integration solutions, transforming how SaaS companies connect within digital ecosystems. The company's focus on privacy-centric, efficient API connectivity aligns perfectly with current demands for secure data handling and agile integrations, reinforcing StackOne's competitive edge.

StackOne Careers

StackOne provides career opportunities that span across technology, sales, and customer relations. As a rapidly expanding company, it attracts talent looking to work on cutting-edge SaaS integrations and real-time data solutions, nurturing a culture of innovation and growth. The organization's robust work environment is designed to foster professional development, making it a desirable destination for tech-savvy job seekers.

StackOne Product Manager

As a Product Manager at StackOne, individuals are tasked with overseeing product development from conceptualization to execution. This role is crucial for ensuring that StackOne's API solutions meet market needs effectively while maintaining the company's standards in innovation and operational excellence. Product Managers work closely with engineering and business development teams to drive strategic initiatives and enhance the company's product line.

Conclusion

Guillaume Lebedel's contributions to technology through StackOne exemplify leadership in innovation and product integration. By addressing the complexities of API management, Lebedel has positioned StackOne to significantly impact the SaaS landscape, ensuring efficient, secure, and scalable integration solutions. His work continues to influence modern software integration strategies, promising a lasting legacy in the tech industry.

References

  1. Guilaume Lebedel's Profile on Clay
  2. Exclusive: Google Ventures Backs AI Agents Startup StackOne
  3. StackOne Company Overview
  4. Pymnts: StackOne Funding
  5. StackOne Blog: Announcing StackChat
  6. LinkedIn Post by Guillaume Lebedel
  7. BusinessCloud: Seed Funding Announcement