09/13/2026 updated
100 % available
Senior Backend Developer | C# / .NET | Azure | PostgreSQL
Portugal
Only remote
Master's in Bioinformatics | Ghent University | 2016 - 2018About me
Backend Dev specialised in data handling and optimisation of back office processes. Converting legacy applications into modern and secure products.
AI AgentsAzure DevOpsASP.NETTest AutomationMicrosoft AzureC Sharp (Programming Language)Python (Programming Language)PostgreSQLAzure SQLWindows PowerShellAWS CLITypeScript.NET CoreReact.jsBackend
Backend Development with C# and .NET
Six years of professional experience in backend development using C#, .NET, ASP.NET Core, Entity Framework Core and REST APIs. Expertise in designing APIs and data models for complex business domains including participant registration, enrolments and client management.
Database Management with PostgreSQL and SQL
Hands-on experience with relational databases including PostgreSQL and SQL. Design and implementation of database schemas supporting large-scale applications such as a fully rebuilt legacy platform.
Cloud Infrastructure and Delivery with Azure
Management of Azure cloud resources including platform maintenance, monitoring and diagnostics using Azure Application Insights and Sentry. Additional experience with Docker, Kubernetes, Jenkins, Vercel and AWS.
Frontend Development with TypeScript and React
Building and maintaining Next.js and TypeScript applications for participant self-service portals and internal research project workflows.
AI-Assisted Development
Practical application of prompt engineering, reusable agent skills, coding guidelines and MCP integrations to support and accelerate software development workflows.
Third-Party Integrations
Integration of external services including Brevo, Twilio and Microsoft Graph for email, SMS and Microsoft 365 user management.
Monitoring and Observability
Use of monitoring tools such as Sentry, Azure Application Insights and Grafana for diagnostics, alerting and platform health tracking.
Authentication and Background Jobs
Implementation of authentication mechanisms, logging systems and background jobs supporting account management and communication workflows.
Experience
Professional experience5 - 10 years
Freelancer since2024
Languages
EnglishFluentPortugueseNative speakerSpanishGood
Project history
Rebuilt the company's legacy application delivering a new C#/.NET backend, PostgreSQL database, public website and internal operations platform (Hub). Designed APIs and data models for participant registration, research opportunities, enrolments and client management. Implemented authentication, logging and background jobs. Integrated Brevo, Twilio and Microsoft Graph for email, SMS and Microsoft 365 user management. Built and maintained Next.js/TypeScript applications. Managed Azure resources and platform maintenance using Sentry and Application Insights.
Developed backend functionality for a banking application within a monolithic architecture using C#, Java and SQL.
Developed APIs supporting mobile and web applications within a React and Java stack, using SQL, Docker and Jenkins.