> Markdown version of [/jobs/ext/12180-senior-full-stack-engineer](https://www.wearedevelopers.com/jobs/ext/12180-senior-full-stack-engineer). 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). --- # Senior Full Stack Engineer - **Company:** Taleo Consulting - **Location:** Brussel, Belgium - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** .NET Framework, PHP (Programming Language), Multitier Architecture, Application Programming Interfaces (APIs), Agile Methodology, Unit Testing, C Sharp (Programming Language), Cloud Engineering, Relational Databases, DevOps, Entity Framework, Enterprise Messaging Systems, Microsoft SQL Server, MySQL, NHibernate, Node.Js, Object-Oriented Software Development, Software Architecture, RabbitMQ, Swagger, Mendix, Service Development Studio, Software Engineering, Systems Integration, Openapi, Enterprise Application Integration, Enterprise Software Applications, Backend, Git, Event Driven Architecture, Information Technology, Low-code, Front End Software Development, Domain Driven Design, Software Version Control, Legacy Systems, Microservices - **Published:** May 29, 2026 - **Apply:** https://be.indeed.com/viewjob?jk=1583923c440418df ## About the Role Do you have experience in gRPC?, Do you have a Master's degree?, * Full-stack software development (Expert, current experience) * Legacy application modernization (Advanced, current experience) * Node.js and backend architecture development (Advanced, current experience) * .NET / C# backend development (Advanced, current experience) * API and integration service development (Advanced, current experience) * Agile software delivery and collaboration (Advanced, current experience), * Minimum 5 years of experience in software development and integration services * Experience contributing to application modernization and technology evolution initiatives * Proven ability to translate business requirements into technical solutions, * Senior-level expertise with PHP and legacy system modernization * Strong experience with Node.js development, ideally within a BFF architecture * Good knowledge of .NET / C# and modern backend development practices * Experience with REST and/or gRPC APIs * Familiarity with OpenAPI / Swagger specifications * Experience with relational databases such as: * MSSQL * MySQL * Strong understanding of: * Object-oriented design principles * Clean architecture practices * Experience with ORM frameworks such as: * Entity Framework * NHibernate * Experience with: * Unit testing frameworks * Mocking frameworks * Git source control Preferred / Nice to Have * Experience with frontend modernization projects * Experience with Mendix or other low-code platforms * Knowledge of microservices and event-driven architectures * Familiarity with RabbitMQ or similar messaging systems * Understanding of Domain-Driven Design (DDD) * Experience with CI/CD pipelines and DevOps practices * Knowledge of enterprise integration patterns, * Bachelor's or Master's degree in Computer Science, Software Engineering, or related technical field * Equivalent professional experience is also considered, * English - Professional working proficiency ## Description The mission consists of driving the modernization and evolution of enterprise applications within a digital banking environment, ensuring alignment with modern architecture principles, scalability requirements, and technology transformation objectives. The role focuses on designing, developing, and integrating modern backend and frontend solutions, while supporting the migration of legacy systems toward cloud-native and microservices-based architectures. Beyond software development, the objective is to strengthen technical excellence, improve application maintainability, and contribute to platform evolution initiatives, while collaborating within Agile cross-functional teams. The goal is to enable the organization to accelerate digital transformation, modernize legacy platforms, and deliver secure, scalable, and high-quality banking solutions within an evolving technology ecosystem., * Application Modernization & Architecture Evolution * Software Development & Integration * Agile Delivery & Collaboration * Quality, Maintainability & DevOps * Technology Evolution & Innovation ## Related Videos - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [MySQL Protocol Features You Should Be Aware Of](https://www.wearedevelopers.com/videos/100267-mysql-protocol-features-you-should-be-aware-of) - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) - [Branch your database like your code: How schema changes and pull requests go hand in hand](https://www.wearedevelopers.com/videos/350-branch-your-database-like-your-code-how-schema-changes-and-pull-requests-go-hand-in-hand) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) - [Why Your Best Mediors Never Become Seniors (And How to Fix It)](https://www.wearedevelopers.com/videos/2108-why-your-best-mediors-never-become-seniors-and-how-to-fix-it) ## Related Articles - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Fullstack developer salary in Germany [2023]](https://www.wearedevelopers.com/magazine/197-fullstack-developer-salary-in-germany-2023)