11/02/2026 updated
100 % available
Mendix Advanced Certified Developer & Technical Lead
Sibiu, Romania
Only remote
BSc Computer Science — Lucian Blaga University of SibiuAbout me
Mendix Advanced Certified developer (id 111057) with 4+ years of production low-code delivery for enterprise clients. Strengths: complex domain modelling, security model design, SAP/Kafka/ServiceNow integration, performance tuning, Java & JavaScript actions, on-prem and Mendix Cloud deployments.
RAGAzure OpenAIJava (Programming Language)Enterprise Architecture FrameworkPostgreSQLScrum MethodologyMendixSystems IntegrationEnterprise Application IntegrationEnterprise Application SoftwareEnterprise Application PlatformSAP Integration SolutionsPrompt EngineeringBackendLow-code
Mendix Low-Code Development
Expertise in Mendix Studio Pro 9/10/11, covering Domain Modelling, Microflows, Nanoflows, XPath, Mendix Security, REST, SOAP, Java Actions, JavaScript Actions, Pluggable Widgets, Atlas UI, Native Mobile, and Performance Optimisation. Delivery of production low-code platforms for enterprise clients across mobility, industrial, facility-management and public-administration sectors.
Enterprise Integration (SAP, Kafka, ServiceNow)
Design and implementation of bidirectional SAP integrations covering master data, fiscal data and invoice payloads, as well as ServiceNow integrations and Apache Kafka event pipelines aggregating milestone data from multiple back-ends. End-to-end ownership of integration architecture and performance on long-running enterprise programmes.
AI & RAG Engineering (Azure OpenAI)
Design and delivery of a production RAG-based document Q&A chatbot for a legal department, including chunking, embeddings, Azure AI Search vector index, semantic retrieval, multimodal PDF ingestion on Azure OpenAI (GPT-4 Vision, GPT-3.5), served to a Mendix frontend via a custom Python backend. Hands-on experience with Prompt Engineering and Azure OpenAI services.
Domain & Security Modelling
Full ownership of domain models and security models on enterprise Mendix programmes, coordinating with large delivery teams of 20+ persons.
Python Backend Development
Development of custom Python backends to serve AI-powered features to Mendix frontends, including integration with Azure AI services.
Database Technologies (PostgreSQL, SQL Server)
Working knowledge of PostgreSQL and SQL Server for data persistence and querying within enterprise application contexts.
CI/CD & Version Control (Git, SVN)
Application of CI/CD pipelines and version control practices using Git and SVN within Agile delivery teams following Scrum and Kanban methodologies.
Instana & Confluence Automation
Real-time Instana import, automated Confluence publication, and on-demand multi-level architecture diagrams via a custom Mermaid.js engine.
Cloud & On-Premises Deployment (Mendix Cloud)
Deployment and management of Mendix applications on Mendix Cloud as well as on-premises environments.
Web Technologies (HTML, CSS, JavaScript)
Front-end development skills including HTML, CSS and JavaScript, applied in web development and Mendix widget customisation contexts.
Expertise in Mendix Studio Pro 9/10/11, covering Domain Modelling, Microflows, Nanoflows, XPath, Mendix Security, REST, SOAP, Java Actions, JavaScript Actions, Pluggable Widgets, Atlas UI, Native Mobile, and Performance Optimisation. Delivery of production low-code platforms for enterprise clients across mobility, industrial, facility-management and public-administration sectors.
Enterprise Integration (SAP, Kafka, ServiceNow)
Design and implementation of bidirectional SAP integrations covering master data, fiscal data and invoice payloads, as well as ServiceNow integrations and Apache Kafka event pipelines aggregating milestone data from multiple back-ends. End-to-end ownership of integration architecture and performance on long-running enterprise programmes.
AI & RAG Engineering (Azure OpenAI)
Design and delivery of a production RAG-based document Q&A chatbot for a legal department, including chunking, embeddings, Azure AI Search vector index, semantic retrieval, multimodal PDF ingestion on Azure OpenAI (GPT-4 Vision, GPT-3.5), served to a Mendix frontend via a custom Python backend. Hands-on experience with Prompt Engineering and Azure OpenAI services.
Domain & Security Modelling
Full ownership of domain models and security models on enterprise Mendix programmes, coordinating with large delivery teams of 20+ persons.
Python Backend Development
Development of custom Python backends to serve AI-powered features to Mendix frontends, including integration with Azure AI services.
Database Technologies (PostgreSQL, SQL Server)
Working knowledge of PostgreSQL and SQL Server for data persistence and querying within enterprise application contexts.
CI/CD & Version Control (Git, SVN)
Application of CI/CD pipelines and version control practices using Git and SVN within Agile delivery teams following Scrum and Kanban methodologies.
Instana & Confluence Automation
Real-time Instana import, automated Confluence publication, and on-demand multi-level architecture diagrams via a custom Mermaid.js engine.
Cloud & On-Premises Deployment (Mendix Cloud)
Deployment and management of Mendix applications on Mendix Cloud as well as on-premises environments.
Web Technologies (HTML, CSS, JavaScript)
Front-end development skills including HTML, CSS and JavaScript, applied in web development and Mendix widget customisation contexts.
Experience
Professional experience5 - 10 years
Freelancer since2021
Languages
EnglishFluentItalianNative speakerRomanianNative speakerSpanishGood
Project history
Lead developer on an enterprise accounting and revenue-management platform covering offer generation, milestone-completion workflows, revenue drivers, PDF and Excel generation, and regulatory reporting. Designed bidirectional SAP integration (master data, fiscal data, invoice payloads), ServiceNow integration and Kafka event pipelines aggregating milestone data from multiple back-ends. Owned domain model, security model and performance; coordinated with a 20+ person delivery team.
Built a Configuration Management Database (CMDB) used by cybersecurity and audit teams to inventory applications, databases and integrations. Implemented real-time Instana import, automated Confluence publication, and on-demand multi-level architecture diagrams via a custom Mermaid.js engine.
Designed and shipped a RAG-based document Q&A chatbot for the legal department: chunking, embeddings, Azure AI Search vector index, semantic retrieval, multimodal PDF ingestion on Azure OpenAI (GPT-4 Vision, GPT-3.5), served to a Mendix frontend via a custom Python backend.