Full Stack Web and Mobile Developer

h3Mission Overview /h3pKeystone Solutions is seeking a talented Full-Stack Web and Mobile Developer for a consultancy mission at a client site. This role requires a minimum of 6 years of experience in software development. /p h3Responsibilities /h3 ul liMaintain the technical architecture of software solutions. /li liCollaborate with the technical team to translate business requirements into robust technical designs and appropriate technology choices. /li liActively contribute to software development, particularly for complex or critical components. /li liEnsure code quality and architectural consistency through code reviews, technical standards, and best practices. /li liActively participate as a member of project teams, contributing directly to the design, development, testing, and delivery of software solutions. /li liDevelop and maintain mobile applications. /li liContribute to the testing, release, and deployment of mobile applications on the Google Play Store and Apple App Store. /li /ul h3Required Technical Skills /h3 ul liObject-oriented programming, design patterns, n-tiers architecture. /li liBackend: C#, .
NET Framework 4.0/4.5/4.8, .
NET Core, .
NET Core WebApi, Entity Framework. /li liFront end: HTML, CSS, JavaScript, jQuery, SCSS/SASS, Nuxt.js, Node.js, VueJs. /li liDatabase: MS SQL Server, TSQL. /li liDevOps and containerization: MS Azure DevOps, Git, Docker, Kubernetes. /li liMobile development: React Native, Expo, deployment (Google Play, App Store). /li liUnit testing: NUnit, xUnit. /li liIdentityServer, OpenId Connect and web applications security. /li liRest API services. /li /ul h3Soft Skills and Personal Competencies /h3 ul liAbility to analyze complex problems, understand technical requirements, and identify appropriate solutions. /li liAbility to work independently, take ownership of assigned tasks, and proactively identify areas for improvement. /li liStrong teamwork skills and ability to work effectively with developers, designers, functional analysts, project managers, and other project stakeholders. /li liAbility to communicate clearly and explain technical topics to colleagues. /li liAbility to adapt to changing requirements, new technologies, and different development environments. /li liStrong focus on code quality, reliability, usability, and maintainability across web and mobile applications. /li /ul h3Languages /h3 ul liFrench or Dutch (read, written, spoken). /li liEnglish (read, written, spoken). /li /ul pAt Keystone Solutions, we pride ourselves on our consultancy nature, offering dynamic projects that provide turbo-charged learning opportunities and a commitment to skyrocketing ambition. /p h3Duration /h3 pbDuration: /b 16/11/2026
- 26/02/2027 4 months
• (full time) /p h3Skills required /h3 ul libAzure DevOps /b
- Level: Confirmed
- Most recent: Any time /li libAzure DevOps (GIT) /b
- Level: Confirmed
- Most recent: Any time /li libC# / .
NET (Core, 10) /b
- Level: Confirmed
- Most recent: Any time /li libC#: ASP.
NET Core (REST API) /b
- Level: Confirmed
- Most recent: Any time /li libC#: ASP.
NET MVC /b
- Level: Confirmed
- Most recent: Any time /li libDocker /b
- Level: Confirmed
- Most recent: Any time /li libExpo /b
- Level: Confirmed
- Most recent: Any time /li libidentity Server /b
- Level: Confirmed
- Most recent: Any time /li libjQuery/JS /b
- Level: Confirmed
- Most recent: Any time /li libKubernetes /b
- Level: Confirmed
- Most recent: Any time /li libNUnit /b
- Level: Confirmed
- Most recent: Any time /li libNuxt /b
- Level: Confirmed
- Most recent: Any time /li libOpenID-Connects /b
- Level: Confirmed
- Most recent: Any time /li libReact native /b
- Level: Confirmed
- Most recent: Any time /li libVueJS /b
- Level: Confirmed
- Most recent: Any time /li libxUnit /b
- Level: Confirmed
- Most recent: Any time /li /ul h3Language requirements /h3 pFrench or Dutch (read, written, spoken)br/English (read, written, spoken)br/ /p