Lennard Kooy

Founder & CEO, Lleverage
Amsterdam, North Holland,Netherlands
Find Lennard Kooy's Email
Find Lennard Kooy's Phone

Who Is Lennard Kooy?

Total Experience23 years
CompanyLleverage
CountryNetherlands

Lennard Kooy is a highly experienced Staff Software Engineer currently at Sentry, with a significant prior tenure as a Staff Backend Engineer at GitLab. He is renowned for his deep expertise in backend systems, particularly with Go and Ruby, and for his crucial contributions to Gitaly, GitLab's Git RPC service. Lennard excels in designing and implementing scalable, performant, and reliable software solutions for complex distributed systems. He is passionate about open-source development, performance optimization, and improving the overall stability and efficiency of large-scale applications. Based in Amsterdam, he is a respected figure in the developer community, known for his technical acumen and problem-solving skills.

How Did Lennard Kooy's Career Path Shape Their Journey?

Lennard Kooy's work history includes a series of influential roles in various companies. Here is a detailed list of his professional journey:

Lleverage - Founder & CEO(2024 to Present)
Inspired Thinking Group - Group tech CEO(2022 to 2024)
Storyteq - Founder & CEO(2017 to 2024)
VeiligWerk | SafetyFirst - Co-Owner & Advisor(2017 to 2022)
Requr (Acquired by Levenue) - Founder(2021 to 2022)
Emesa Nederland BV | Emesa Holdings BV - Strategy & Innovation Manager(2015 to 2017)
TicketScout - Founder & CEO(2016 to 2017)
Wonder Media Group - Strategy Consultant(2014 to 2015)
albelli - Product Manager(2011 to 2014)

What Are Lennard Kooy's Key Achievements?

Pivotal Contributor to Gitaly at GitLab

Played a key role in the architecture, development, and scaling of Gitaly, GitLab's service for handling all Git RPC calls. His work significantly improved the performance, scalability, and reliability of Git operations within the GitLab platform, transitioning it from NFS-based access.

Expertise in High-Performance Backend Systems

Consistently demonstrated an ability to optimize and enhance backend services for high-traffic applications, focusing on languages like Go and Ruby, and technologies for distributed systems. This includes work on improving request latencies, system throughput, and resource utilization.

Advocate and Contributor to Open Source

Actively contributed to open-source projects, including GitLab itself, and shares knowledge through his personal blog and community interactions. His contributions have helped improve tools and platforms used by a vast number of developers worldwide.

Staff Software Engineer at Sentry

Currently applying his extensive backend engineering experience at Sentry to enhance their error tracking and performance monitoring platform, contributing to the reliability and scalability of their core services.

What's Lennard Kooy's Educational Background?

Master of Science (MSc), International Management

Universiteit van Amsterdam / University of Amsterdam - Year 2011

Bachelor of Arts (B.A.), History

Erasmus University Rotterdam - Year 2007

Buying Intent Signals for Lennard Kooy

Highperformr Signals uncover buying intent and give you clear insights to target the right people at the right time — helping your sales, marketing, and GTM teams close more deals, faster.

Notable news
Hiring actively
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance

Company Overview

Lleverage
Total employees25
HeadquartersMadrid
Founded2019

Lleverage is a company specializing in AI-powered sales intelligence and lead generation solutions. They aim to help B2B sales teams identify and engage with high-intent prospects more effectively by leveraging data analytics, artificial intelligence, and automation to streamline the sales process, personalize outreach, and ultimately improve conversion rates and revenue growth.

Lleverage Funding Information
Unknown - Total Funding Raised
Not applicable - Most recent funding amount
Not applicable - Number of funding rounds
Not applicable - Latest funding round
Lead Investors:
Information not publicly disclosed or Bootstrapped

Highperformr's free tools for company research

Find contact info

Get verified emails, phone numbers, and LinkedIn profile details

Find similar contacts

Discover contacts with similar roles, seniority, or companies

Perform deep contact research

Uncover insights like skills, work history, social links, and more

Discover, research and enrich contacts with Highperformr — Smarter, Faster

Explore contacts in-depth — from verified emails and phone numbers to LinkedIn activity, job changes, and more — all in one powerful view.

Highperformr AI helps you surface the right people and enrich your CRM with live, accurate contact insights so your teams can connect faster and close smarter.

  • Track signals like job change, promotion, and LinkedIn activity
  • Enrich contacts with verified email, phone, and social data instantly
  • Automate enrichment and updates with powerful workflows
  • Sync enriched contact info directly into your CRM and tools

Thousands of contacts — including decision-makers, influencers, and ICP matches — are just a search away.

Thousands of companies, including, are just a search away.