> Markdown version of [/jobs/ext/4052505-medior-software-developer](https://www.wearedevelopers.com/jobs/ext/4052505-medior-software-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Medior Software Developer - **Company:** Keystone Solutions - **Location:** Brussel, Belgium - **Experience:** Experienced - **Contract:** Internship / Graduate position - **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Automation of Tests, Microsoft Azure, Business Software, Cloud Computing, Code Review, Continuous Integration, Data Security, DevOps, Github, Spring Framework, Python (Programming Language), PostgreSQL, Microsoft SQL Server, Software Engineering, SQL Databases, Data Logging, Flask (Web Framework), Backend, Git, Fastapi, Git Flow, Restful APIs, Docker - **Published:** October 13, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=79dfb42de17b6f94 ## About the Role * 2 to 5 years of professional software development experience (medior). Internships alone are not sufficient. * Confirmed in Python or Java: autonomous on day-to-day work in at least one of the two. Both is a plus. We do not expect Expert in either. * Practical knowledge of a public cloud. Azure is preferred: resource groups, App Service / Functions / containers or equivalent, identity, storage, monitoring at user level. * Understands standard DevOps practices: Git flow, pull requests, CI/CD, environment promotion, and secret hygiene. * Ideally holds AZ-900 and/or AZ-204 (Azure Developer). No certification is not a knockout if cloud practice is real and recent. * Curious, able to work with a lead, not only a ticket-taker. * English for code, documentation and team conversation. French and/or Dutch is a plus. Assets: * AZ-900, AZ-204, or another Azure developer / fundamentals certification. * Docker. * SQL (PostgreSQL, SQL Server or equivalent). * Spring, FastAPI, Flask. * Azure DevOps or GitHub Actions beyond "I ran a pipeline once"., * Agile - Level: Beginner - Most recent: Any time * Azure - Level: Beginner - Most recent: Any time * DevOps CI/CD - Level: Intermediate - Most recent: 1 to 3 years ago * GIT - Level: Intermediate - Most recent: This year * Java - Level: Intermediate - Most recent: 1 to 3 years ago * Pyhton - Level: Intermediate - Most recent: 1 to 3 years ago * Rest API - Level: Intermediate - Most recent: 1 to 3 years ago Language requirements: Dutch or French Level Native or bilingual proficiency English Level Full professional proficiency ## Description * Design, build and maintain application features, mainly on the backend (APIs, services, data access). * Work in a cloud environment, preferably Azure: configuration, logging, identity, storage, and basic troubleshooting of the services you use. * Contribute to CI/CD pipelines, code reviews and automated tests. Do not commit secrets. Respect environments (dev / test / prod). * Write clear, reviewed code and document what you ship. * Estimate and refine work with the Solution Architect / Lead Developer. Raise risks early. * Take part in agile ceremonies and pair when a topic is new.