Petyo Dimitrov is a software engineer with 15+ years of working experience in various projects for international clients. Currently, he is a Senior Software Architect at Musala Soft. His professional focus is in Java, Enterprise Application and Integration technologies, RESTful Services, Microservice Architectures and DevOps. He also enjoys sharing his experience and new technologies he is learning with colleagues at work, students at Technical University – Sofia and on different IT conferences in Bulgaria.

Mani Sarkar is a passionate developer mainly in the Java/JVM space, currently strengthening teams and helping them accelerate when working with small teams and startups, as a Freelance Software, Data, ML engineer.

A Java Champion, Oracle Groundbreaker Ambassador, JCP Member, OpenJDK contributor, thought leader at developer communities and involved with F/OSS projects like @graalvm, @wandb, nbQA-dev/nbQA, and others. Writes code, not just on the Java/JVM platform but in other programming languages as well, hence likes to call himself a polyglot developer. He sees himself working in the areas of core Java, Hotspot, GraalVM, Truffle, VMs, Performance Tuning, Data, and AI/ML/DL/NLP.

An advocate of a number of agile and software craftsmanship practices and a regular at many talks, conferences and hands-on-workshops – speaks, participates, organises and helps out at many of them. Expresses his thoughts often via blog posts (on his own blog site, DZone, Medium and other third-party sites), and microblogs (tweets).

You can read about my recent achievements and developments here.

Alvaro Muñoz (@pwntester) works as Staff Security Researcher with GitHub Security Lab. His research focuses on different programming languages and web application frameworks searching for vulnerabilities or unsafe uses of APIs. Before joining the research field, he worked as an Application Security Consultant helping enterprises to deploy their application security programs. Muñoz has presented at many security conferences including DEF CON, RSA, AppSecEU, Protect, DISCCON, etc and holds several InfoSec certifications, including OSCP, GWAPT and CISSP, and is a proud member of int3pids CTF team. He blogs at http://www.pwntester.com.

Svetlin Nakov (http://nakov.com) Svetlin Nakov has 20+ years of technical background as software engineer, project manager, consultant, trainer, and digital entrepreneur with rich technical experience (blockchain, Web development, information systems, databases, cryptography, C#, Java, JS, PHP, Python). Svetlin Nakov is a regular speaker at hundreds of conferences, seminars, courses and other trainings and holds a PhD degree in computer science. He is author of 15 books about computer programming and software technologies, lives in Sofia, Bulgaria and works as an passionate trainer and inspirer at SoftUni.

Naresha works as Technical Excellence Coach and Cloud Transformation Catalyst. He works with the developers to improve their professional practices to get better at developing maintainable applications that deliver business value. He also helps teams to architect solutions for the cloud and migrate applications to cloud platforms. He has been developing enterprise software for more than 12 years.

Naresha is the founder organizer of Bangalore Groovy User Group. He has been a speaker at several conferences including GR8 Conf EU, Functional Conf, GR8 Conf India, Grails Conf, GIDS, Eclipse Summit and Selenium Conf.

Nikolay is a network freak and lazy software nerd ☺ He has a PhD from NBU in “IPv4 to IPv6 network transformation” and a specialization in Architectures for Software systems from Carnegie Mellon University. Through the years Nikolay has worked for many companies like Globul, D-Telecom, SevOne, Comptel, Nokia, Deloitte, BMW. In ThingsLog Nikolay is acting as a product owner and CEO.

Jacek has been working in the IT industry for 6 years. Starting from testing, he went through business analysis and until today, he develops his skills programming in Java. Along the way, he had short episodes in User Experience, and once trained people in databases and application execution processes in Java. After hours, he loves playing basketball, snowboarding and playing bridge. His real passion is West Coast Swing – an unusual, elegant dance.

Martin Kuvandzhiev is an Engineer, Innovator and Entrepreneur. He starts working as Software developer at age of 18 right after finishing high school. Martin is the Founder of GoStartups, CEO of Assetify and board member of Bitcoin Gold. His companies are oriented in fintech, healthcare and blockchain. Despite the fact that Martin runs 2 companies he still does development and is specialized in iOS development. Martin has plenty of experience in creating products from scratch and that is the reason why his topic of development is specifically for that – creating a great app architecture from the beginning.

Boris is a software-development enthusiast and a strong state-of-the-art technologies advocate. Starting to show interest in software development in the early high-school years, Boris has spent a lot of his time exploring the different types of software in order to master all their strengths and weaknesses and be able to make the crucially important decisions inevitable during every product development life cycle. This way he is able to ensure the future-proof architecture and scalability of all developed products under his leadership. Boris is currently the leading technologist in GoStartups and specializes in Android and Back-end development.

Trayan Iliev (https://www.linkedin.com/in/trayaniliev/) is developer of end-to-end reactive full-stack applications and services using ES, TypeScript, Angular, React and Vue.js clients, and Spring, Java EE,  Reactor, Kafka,  Golang, Flask, and Express back-ends. He has 15+ years of software development experience and 12+ years experience as enterprise IT trainer. Trayan is CTO of IPT – Intellectual Products & Technologies – training and consultancy company, focused on novelties in front-end and REST/gRPC/GraphQL backend development – reactive UI, end-to-end reactive programming, distributed event stream processing, distributed machine learning, and real-time micro-service architectures. Trayan has presentations on local developer conferences such as Java2Days, Voxxed Days, jPrime, jProfessionals, BGOUG, on topics like Spring 5, Reactor, SOA & REST, Kafka, Pulsar, Java EE, React, Angular, Ionic, Express.js, RxJS, reactive robotics and IoT. He is robotics/smart-things/ IoT enthusiast and organizes RoboLearn hackathons in Sofia.