{"id":3454444,"url":"https://alion.io/job/corewillsoft-fullstack-software-engineer","title":"FullStack Software Engineer","company":{"id":4486113,"name":"CoreWillSoft","domain":"corewillsoft.com","url":"https://alion.io/company/corewillsoft","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Manatal","truth_index":null},"role":"Backend","role_family":"Backend","seniority":null,"employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Ukraine"],"countries":["UA"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":5500,"max":6700,"currency":"USD","period":"month","gross":false,"usd_annual":80400},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Angular","optional":false},{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"CI/CD","optional":false},{"name":"Compose Multiplatform","optional":false},{"name":"Dependency Injection","optional":false},{"name":"Docker","optional":false},{"name":"GCP","optional":false},{"name":"Git","optional":false},{"name":"GitHub Actions","optional":false},{"name":"GitLab CI","optional":false},{"name":"Grafana","optional":false},{"name":"JavaScript","optional":false},{"name":"Jetpack Compose","optional":false},{"name":"Koin","optional":false},{"name":"Kotlin","optional":false},{"name":"Kotlin Coroutines","optional":false},{"name":"Kotlin Multiplatform","optional":false},{"name":"Ktor","optional":false},{"name":"npm","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Prometheus","optional":false},{"name":"React.js","optional":false},{"name":"Redux","optional":false},{"name":"Rest API","optional":false},{"name":"Spring Boot","optional":false},{"name":"State Management","optional":false},{"name":"TypeScript","optional":false},{"name":"Vite","optional":false},{"name":"Vue.js","optional":false},{"name":"Webpack","optional":false},{"name":"Java","optional":true}],"status":"live","first_seen_at":"2026-10-21T11:06:26Z","employer_posted_date":null,"last_verified_at":"2026-10-21T11:06:26Z","board_verified":false,"closed_at":null,"days_open":23,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":23},"description":"CoreWillSoft GmbH is a German-based company working on secure IoT software solutions and services. The mission of CoreWillSoft is to help businesses protect their assets, employees, and data by providing advanced software solutions and services in the security industry. \n\nWe are looking for a Full-Stack Software Engineer with strong backend experience in Kotlin/Java and either: \n\nsolid Frontend (React) expertise, or \n\nexperience in Kotlin Multiplatform / Android development \n\nYou will work on products used by businesses across Western Europe and North America. \n\nOur team operates in a scaled agile approach across Europe with a headquarter in Bonn, Germany. It is responsible for the complete software development lifecycle; including ideation, implementation, and operation of the secure IoT software operating smart buildings and smart homes across the world. \n\nThis is an exciting opportunity to work on cutting-edge projects involving high-security hardware and technology in a creative, international environment. \n\nWe offer: \n\nMeaningful Impact: Build solutions that are used every day by thousands of businesses your work will directly improve real-world security and connected device experiences. \n\nProduct & Process Ownership: Help shape not only the product, but also how we build and deliver it your ideas and decisions will have visible impact. \n\nIndustry Influence: Contribute to key security standards and best practices, staying ahead of the curve in a fast-evolving industry. \n\nModern Tech Stack & Hardware: Work with the latest hardware and the tools you need to do your best work. \n\nTime Off & Flexibility: Vacation days, paid sick leave, and public holidays in line with German legislation plus flexibility built around outcomes, not micromanagement. \n\nLearning & Development Budget: We support continuous growth by covering hard and soft skills courses, trainings, and access to e-learning platforms. \n\nCoworking Support: Prefer not to work from home every day? We offer coworking compensation so you can choose the environment that fits you best. \n\nLanguage Learning Support: Monthly fixed compensation you can use to improve your English or German through the learning format of your choice. \n\nStrong Team Culture: Open collaboration, a flat structure, and thoughtful onboarding your voice is heard, and you can make an impact from day one. \n\nYour skills:\nBackend: \n\nProficiency in Kotlin and/or Java for backend development. \n\nStrong experience with Spring Boot framework. \n\nExperience with Docker and containerized applications. \n\nFamiliarity with cloud platforms such as AWS, Azure, or Google Cloud. \n\nExperience in designing and consuming RESTful APIs. \n\nKnowledge of microservices architecture and patterns. \n\nExperience with on-premise and cloud-based deployments. \n\nProficiency in secure coding practices and understanding of security best Ko practices for backend systems. \n\nFamiliarity with scalability strategies and performance optimization in backend services. \n\nKnowledge of monitoring and observability tools (e.g., Prometheus, Grafana, ELK). \n\nKnowledge of cryptography and security \n\nFamiliarity with CI/CD processes, including GitHub Actions, GitLab CI, or similar tools. \n\nExperience with version control systems (e.g., Git). \n\nExperience with database technologies, both relational (e.g., PostgreSQL) and NoSQL (e.g., MongoDB).\nFrontend (one of the following paths is required) \n\nOption 1 – Web Frontend:\nStrong experience with React.js or Angular or Vue \n\nSolid knowledge of TypeScript / JavaScript, HTML5, CSS3 \n\nExperience with modern tools (Vite, Webpack, npm, etc.) \n\nUnderstanding of state management (e.g., Redux)\nOption 2 – Mobile / Multiplatform:\nExperience with Kotlin Multiplatform and/or Android development \n\nStrong knowledge of Kotlin Coroutines and Flow \n\nExperience with Jetpack Compose (or Compose Multiplatform) \n\nFamiliarity with dependency injection frameworks (e.g., Koin) \n\nExperience with networking libraries such as Ktor\n\nNice to have: \n\nExperience with Kotlin Multiplatform in production \n\nKnowledge of modern Kotlin ecosystem (Coroutines, Flow, Compose, Koin, Ktor) \n\nKnowledge of additional programming languages \n\nExperience with system architecture and distributed systems \n\nUnderstanding of UI/UX design and performance optimization \n\nKnowledge of building automation or access control 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