Our startup is based in Horgen (ZH). We develop and operate KleverKey, a state-of-the-art cloud-based access control system. Everything is fully digitalised - marketing, sales, development and business development. Our vision: Seamless Access for Business Premises. Our team in Horgen is young, motivated and always looking for the best solutions. In your role as Senior Full Stack Developer / CTO, you have a direct influence on the further development and improvement of our Software-as-a-Service solution. Tasks: - Analysis of extension requests and their clean and efficient implementation - Further development of an existing web application (back- and frontend), a REST API and various command-line tools - Operation of the web application in Azure - Support assistance (3-level support) - Independent acquisition of industry-specific knowledge and missing technical knowledge Qualification: - You have a technical education (ETH, FH) in computer science or electrical engineering - Several years of professional experience as a full stack developer with C#, ASP.NET, SQL, HTML, CSS and JavaScript - You also have experience with unit testing, CI/CD, micro services, as well as REST APIs and are interested in writing software that is as bug-free and stable as possible. - You are willing to take on responsibility and enjoy a clean technical implementation (clean code). - Good language skills in German and English - You are already familiar with our tech stack or motivated to familiarise yourself with it Tech stack: - C#, SQL, JavaScript, HTML, CSS. - NET Core, jQuery, Twitter Bootstrap, Kendo UI, Vue.js, Entity Framework, MSTest - OpenAPI (Swagger) - IdentityServer4 (OpenID) - MQTT, BLE - Azure DevOps (Boards, Pipelines, GIT Repos) - Azure Cloud Services (App Services, Functions, SQL DB, IoT Hub, Key Vault, Application Gateway, Application Insights etc.) Benefits: - You get a lot of creative freedom. Trust is our top priority - Work remotely or in our modern office in Horgen - Working together with an open-minded and motivated team that has an honest positive but challenging working environment - Space and opportunities for co-design, creativity and personal development - Be part of a fast-growing start-up and the chance to change the access control industry sustainably with your team at KleverKey.