Best tech events: May 2025 is full of sweeping technology expos and conferences throughout Europe, each offering valuable context to the newest industry trends. You could be a seasoned software engineer, a junior developer, a CTO, or even just a tech person who simply wants to stay informed; there are no shortages of chances to meet thought leaders, learn about innovative breakthroughs, and have some worthwhile discussions regarding the future of technology.
From cutting-edge JavaScript frameworks to powerful data streaming solutions and next-generation programming languages, this month promises top-tier events for developers, engineers, and tech leaders. Attendees can expect a mix of hands-on workshops, keynote speeches, and industry networking, covering everything from AI and machine learning to cybersecurity and cloud-native development.
Here are some of the most exciting tech events to watch out for in May.
International JavaScript Conference
12–16 May, London, United Kingdom
The International JavaScript Conference (iJS) London 2025 is a must-attend event for JavaScript developers, architects, and tech enthusiasts. It features expert-led keynotes, hands-on workshops, and deep-dive sessions on Angular, React, Node.js, Vue.js, and other modern JavaScript technologies. Whether you are attending in person or joining virtually, the conference offers live-streamed and recorded sessions for ultimate flexibility.
Current
20–21 May, London, United Kingdom
Previously known as Kafka Summit, Current is a two-day conference dedicated to the evolving world of data streaming. It brings together developers, architects, and data professionals to explore platforms like Apache Kafka, Flink, and Iceberg. With keynote speeches, breakout sessions, and an engaging expo hall, the event is a key destination for anyone working in real-time data solutions and event-driven architecture.
KotlinConf
21–23 May, Copenhagen, Denmark
Organized by JetBrains, KotlinConf is the official conference for Kotlin developers. The event provides a space for in-depth learning through technical talks, workshops, and networking. Key topics include Kotlin Multiplatform, coroutines, Ktor, and more. Whether you are just starting out or you are a seasoned Kotlin pro, KotlinConf is the go-to place to stay updated on Kotlin’s future and connect with the community.
DevDays Europe
21–23 May, Vilnius, Lithuania
DevDays Europe converges software developers, engineers, and technology leaders to undertake a concentrated analysis of AI, machine learning, cloud computing, security, and software design. By employing professional workshop instructors and live, participative training, the event aims to instigate best practices and innovations. It provides a great environment to share information and catch up with what is latest in the ever-evolving sector of technology.
Dublin Tech Summit
28–29 May, Dublin, Ireland
Dublin Tech Summit is one of the fastest-growing tech conferences in Europe, with more than 10,000 annual attendees. It connects international innovators and industry leaders to explore themes such as AI, machine learning, fintech, cybersecurity, and sustainability. With expert panel talks, networking, and a high level of startup and investor attendance, it provides a unique chance to connect with the world’s next-generation technology.
Whether you are a coder looking to hone your skills, a startup entrepreneur seeking inspiration, or a tech executive exploring new frontiers, May’s tech events are the perfect place to meet, discover, and innovate across Europe.
