Julien Guerinet is a COO and CTO, Co-Founder at Combyne Ag. He possess expertise in java, android development, programming, git, mobile application development and 13 more skills. Colleagues describe him as "Julien is a real servant-leader, with a level of openness, flexibility, and willingness to listen and grow that I've rarely seen in a manager. Never a micromanager, his style centred around hiring effectively, building trust among team members, ensuring we got the knowledge, requirements, and guidance we needed, then getting out of the way and letting us operate independently based on our individual expertises. His managerial decisions were consistently made on the basis of his deep technical knowledge and extensive interaction with his team rather than simple authority. This was particularly visible in (rare) times of crisis, in which he was able to quickly take charge and make a top-down decisions for anything within the bounds of his own development experience, or immediately rally and inform the most experienced required developer to do so instead. He is a real believer in agile methodologies and workplace democracy, and provided us with numerous opportunities to provide individual input or make decisions collectively. As a simple example, he organized sprint poker meetings, and ran them in a way that fostered an environment of such respectful discussion and trust that we were able to quickly make consensus decisions (after an initial "vote") that accounted for the development requirements of all layers of the team. Further, his behind-the-scenes efforts consistently made the lives of the whole development team easier and greatly improved our productivity by removing obstacles and slowdowns in our path, letting us get on with the job of product creation. Most impressively, he managed to keep it all fairly hidden to us, with these efforts only visible to the dev team when recapped in full organization meetings. From our perspective, slowdowns or tasks outside the direct scope of development usually just "disappeared" - such as the need to manage expectations with marketing, and various communication tasks outside the development team. We'd then later discover Julien took care of them for us. Julien is also an excellent developer, with extremely strong Java, Kotlin, and XML skills, and a wide breadth of knowledge spanning numerous other programming languages such as Javascript, Typescript, HTML, and CSS. He has a head for software architecture, particularly cross-platform design work - for example, he was able to create a single Java codebase serving as a vaccination rules engine for Android and iOS (through transpilation), with a flexible architecture that made it possible to later wrap that same code for usage in a web browser or Node.js server. He's also hilarious, and overall creates a fun, cooperative, free, and extremely productive work environment. The type of project manager you'd follow to the end of the earth, and the kind of developer you can trust to get the job done right."