Speakers
Don't Hesitate and Submit Your Proposal!
Our Selected Speakers
The decision which proposal to pick is never easy. Here are the selected speakers for our upcoming 2025 online conference.
Sven Woltmann has been a Java developer since the early days. He works as an independent developer, trainer, and course instructor, focusing on scalable enterprise applications, optimization of algorithms, clean code, and clean architecture. He shares his knowledge about Java, architecture, algorithms, and data structures in videos, his newsletter, and his blog, https://www.happycoders.eu/.
Ram is the founder of the DevOps tools GCeasy.io, fastThread.io, and HeapHero.io. Every single day, millions & millions of people in North America travel, bank, and do commerce using the applications that Ram Lakshmanan has architected. Ram advises startups, Fortune 500 enterprises, and Governmental organizations on their critical technology initiatives.
Andres Sacco has been a developer since 2007 in different languages, including Java, PHP, NodeJs, Scala, and Kotlin. His background is mainly in Java and the libraries or frameworks associated with this language. In most of the companies he worked for, he researched new technologies to improve the performance, stability, and quality of the applications of each company.
Buhake Sindi brings over 19 years of experience as a Senior Solutions Architect & Developer, specialising in Java Enterprise technology stacks. His extensive background in coding, design, and problem-solving is complemented by his role as a skilled DevOps Engineer, with 10+ years of hands-on experience in optimising and automating deployments. Buhake excels in translating project requirements into technical specifications and delivering robust, scalable solutions. His passion for technology and ability to communicate complex concepts clearly have made him a sought-after technical speaker and writer. Buhake’s dedication to mentoring and guiding developers positions him as an influential advocate for cutting-edge development practices in corporate environments.
Thomas Krieger is a Lead Developer with 17 years of experience in Java development, specializing in concurrency and high-performance systems. He is the creator of an open-source tool that enables deterministic unit testing for multi-threaded Java applications, helping developers ensure reliability and reproducibility in complex concurrent code. Known for his technical depth, leadership, and commitment to innovation, Thomas continues to advance best practices in Java and actively contributes to the developer community.
Kapil Poreddy is a seasoned Software Engineering Leader with over 19 years of global experience architecting and scaling high-availability digital platforms across Retail, Healthcare, Telecom, and Aviation. Currently serving as a Senior Software Engineering Manager at Walmart Global Tech, he leads the Checkout and Transactions Platform, a mission-critical system processing $53B+ GMV and 8.6M daily transactions. His leadership has driven measurable business outcomes, including $73.2M in incremental GMV through checkout optimizations, 30% faster incident resolution via anomaly-driven observability, and multi-million-dollar cost savings through cloud optimization initiatives.
Li Haoyi graduated from MIT, has built infrastructure for high-growth companies like Dropbox and Databricks, and has been a major contributor to the open source community with projects with over 10,000 stars on Github. Haoyi has deep experience in the JVM and has used it professionally to build cloud infrastructure, distributed backend systems, programming languages, high-performance web applications, and much more.
Haim Michael is a software development trainer, entrepreneur, and lecturer with nearly 30 years of experience. He founded life michael (lifemichael.com), delivering professional training in Java, Python, JavaScript, Scala, Kotlin, and more. Haim has lectured at leading universities, including Bar-Ilan, HIT, Shenkar, and Technion, and has trained developers at top tech companies.
René Wilby is a seasoned freelance software engineer specializing in development of full-stack web apps, microservices, APIs, and DevOps. René also has extensive experience as a university lecturer, trainer and speaker.
Adrian is a seasoned Software Engineer with over half a decade of experience shaping the world of software development. His passion lies in writing code that is not only efficient but also elegant and clean. A strong advocate for continuous improvement, Andy constantly seeks out the most cutting-edge developments in the dynamic world of technology. As an ardent proponent of clean code, he practices Test-Driven Development (TDD) and other craftsman methodologies, ensuring that his work is not only correct but also maintainable and easy to understand. He takes great satisfaction in transforming complex problems into simple, clear solutions.
Ivan Yonkov is the CEO of the software consultancy Codexio and is proactively preaching Java to the community for a decade. Beside being a software developer for more than 10 years, he’s also a professional software and technical trainer, with various presences in formal universities, and was once a Training Director at the biggest software academy in the Balkans – SoftUni. This experience is mostly evident at Codexio, where three internship training camps per year are organized. Ivan loves to dig every bit of hidden code, especially in Java, thus they call him a Javarchaelogist.
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