Jorge Nuricumbo-Senior AI Engineer | Backend Developer C#/.NET | RAG, LLM Integration, Semantic Kernel | Azure, GCP, AWS
Check rate
Experience
Senior Developer
SafeXSmart KI Solutions UG
AI Platform Backend – Senior Developer
Brought in to design and build a backend for an AI platform from scratch, including multi-provider LLM orchestration and real-time infrastructure for AI influencer personas at scale.
Tasks and responsibilities
- Architecture and implementation of a multi-LLM orchestration layer with Semantic Kernel to integrate GPT-4 and other providers for core platform logic and AI influencer personas, reducing model-switching overhead by abstracting provider APIs behind a single interface.
- Design and development of a backend from scratch in C# / .NET 10, including domain modeling with DDD, a versioned RESTful API layer, and cloud infrastructure setup on Azure.
- Built a real-time chat infrastructure with Server-Sent Events (SSE), message persistence, and delivery guarantees for live operation of AI influencer personas at scale.
- Developed a media management service with integration of cloud object storage for upload and retrieval of influencer-generated content.
- Created an integration and unit test suite with data seeding for reliable regression testing across all core platform flows, significantly reducing production error rates.
Tools and technologies: C#, .NET, ASP.NET Core, Python, TypeScript, MySQL, Semantic Kernel, EF Core, Minimal APIs, LLM Orchestration, Prompt Engineering, Agentic AI, Generative AI, AI-Assisted Engineering, Claude Code, GitHub Copilot, Google Gemini, OpenAI API, Ollama, Redis, Azure, Azure Container Apps, Azure Database for MySQL, Docker, GitHub Actions, Clean Architecture, Vertical Slice Architecture, CQRS, Domain-Driven Design, REST API, xUnit, Integration Testing, Unit Testing, Jira, Confluence, Scrum
Lead Developer
Enarmy Medical Education Platform
AI-supported backend – Lead Developer
- part-time, reduced workload until Mar. 2026, then main project
Hired as Lead Backend Developer to design a new AI-supported medical learning platform from scratch - responsible for system design, LLM integration strategy, and implementation across the full stack.
Tasks and responsibilities
- Architecture and implementation of an AI-supported medical learning platform with Google Gemini via Semantic Kernel, orchestrating multiple LLM models for intelligent clinical case generation and personalized learning paths.
- Development of the platform's cross-platform mobile client with Flutter and connection to the backend REST APIs for a reliable data flow between app and backend.
- Design and implementation of the RAG pipeline in Python with pgvector on PostgreSQL for semantic search in clinical guidelines with vector similarity retrieval under 200 ms in production, while the platform backend was implemented in C# / .NET.
- Development of a structured prompt engineering framework for consistent, structured LLM outputs in clinical case generation.
- Built the document processing pipeline for medical PDFs in Python with semantic chunking, embedding generation (text-embedding-004), and automatic reference matching via vector similarity.
- Architecture and implementation of the backend following Domain-Driven Design, Vertical Slice Architecture, Minimal APIs, and CQRS-like patterns with MediatR for independent feature delivery without cross-cutting regressions.
- Design and delivery of cloud-native infrastructure on Google Cloud Platform with Terraform IaC.
- Integration of OpenTelemetry for distributed tracing across all platform services.
- Development of the React-based admin panel for generating clinical cases, managing learning topics, and evaluating learning results, as the central interface for full platform operations by teachers and administrators.
Tools and technologies: C#, .NET, ASP.NET Core, Python, Flutter, Semantic Kernel, Google Gemini, RAG Systems, pgvector, PostgreSQL, Vector Embeddings, Prompt Engineering, Agentic AI, Generative AI, AI-Assisted Engineering, Claude Code, GitHub Copilot, MediatR, Minimal APIs, CQRS, Domain-Driven Design, Vertical Slice Architecture, Google Cloud Platform, Terraform, OpenTelemetry, Grafana, Docker, React, Jira, Confluence, Scrum
Lead C#/.NET Software Developer
DHL Paket GmbH
- Developed new branch software to modernize and improve usability for users without postal background knowledge.
- Implemented features based on stakeholder requirements and worked closely with different departments.
- Performed software tests, error analysis, and bug fixing to ensure software quality.
- Worked in a large Scrum team with regular sprint planning, reviews, and retrospectives to continuously improve development processes.
- Implemented best practices for performance optimization and monitoring.
- Skills: C#/.NET, MAUI, Scrum
Lead C#/.NET Software Developer
Ashampoo GmbH & Co. KG
- Developed an AI assistant with the MAUI framework and successfully brought the application from concept phase to production.
- Designed the application architecture, including the client MAUI app and the cloud infrastructure.
- Used AWS to host the API and ensure scalability.
- Full development lifecycle, from initial requirements analysis to deployment, including coding, testing, and maintenance.
- Implemented best practices for performance optimization and monitoring.
- Skills: C#/.NET, MAUI, OpenAI, AWS, CI/CD
C#/.NET Software Developer
Cyber Insight GmbH
- Performed a comprehensive analysis of the existing Windows application for the Cyber Insight Platform with the goal of identifying areas for improvement and optimization.
- Developed and implemented the application as a Windows service with elevated administrator privileges.
- Integrated robust authentication mechanisms into the application using the customer-provided API to ensure secure access and user authentication.
- Implemented Continuous Integration and Deployment (CI/CD) strategies to make deployment and installation of the complete application easier for end users.
- Skills: C#/.NET, Firebase, Cyber security, CI/CD, GitHub Actions, Visual Studio
Senior Full-Stack Software Developer
Fabreko
- Design and development of a Product Information Management System (PIM), including creating the database schema and backend APIs as well as implementing the user interface.
- Implementation of all required microservices for the application using the .NET framework, including development of REST APIs and management of data storage and retrieval.
- Creation of the frontend application using React with a modern and responsive design approach, building reusable components, integration with the backend APIs, and testing to ensure quality standards.
- Management of the CI/CD pipeline for the entire infrastructure, including automated tests, builds, and production deployments.
- Skills: C#/.NET, JavaScript, TypeScript, React, MongoDB, Docker, GitLab
Full-Stack Software Developer
Heidelberger Druckmaschinen AG
- Leading the development team and designing, planning, and implementing backend development for the "Reward App" and "Discount Engine" projects as part of the global HEIDELBERG e-shop.
- Worked on an IoT project for processing data from an electric vehicle charging station with AWS (Lambda, EC2, S3, DynamoDB).
- Requirements analysis, architecture & design, and implementation in close collaboration with frontend and QA teams.
- Development of full-stack solutions based on the .NET Core framework with a focus on backend, and frontend work when needed.
- Creation of test cases and documentation of development activities.
- Development of innovative web-based 3D visualization solutions and design of frontends for web applications using the Web Components principle.
- Skills: C#/.NET, JavaScript, TypeScript, Python, Angular, Vue, MongoDB, PostgreSQL, Docker, Azure, AWS, 3D Visualization, Machine Learning, GitLab, Shell Scripting, Linux
Software Developer
Heidelberger Druckmaschinen AG
- Development of software components for 3D visualization using C++ and Qt5, creation of tests and documentation.
- Analysis of functional and technical requirements for developing innovative customer solutions.
- Development of 3D visualization components according to customer requirements.
- Close collaboration with other teams to ensure high quality standards.
- Skills: C/C++, Qt, CMake, JavaScript, Vue, Three.js, 3D Visualization, GitLab, SVN
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Manufacturing, Information Technology, Education, Healthcare, and Transportation.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Product Development, Quality Assurance, Project Management, and Research and Development.
Summary
12+ years of professional software development based on C#/.NET, currently focused on AI-driven systems (LLM integrations, agentic engineering and RAG pipelines), with building and delivering production platforms that make LLMs and autonomous agent workflows usable in practice.
Skills
Claude Code & Github Copilot
Jira & Confluence
Github Actions / Gitlab Ci/Cd / Azure Devops
Scrum
C# / .Net & Asp.Net Core
Llm Orchestration & Rag Systems
Python
Agentic Ai, Generative Ai & Ai-Assisted Development
Cloud-Native Architecture (Azure, Aws, Gcp)
Clean Architecture & Domain-Driven Design
Microservices & Event-Driven Systems
Technical Leadership
Cross-Functional Stakeholder Communication
System Observability & Performance Tuning
Ci/Cd & Devops Automation
Technical Documentation & Adrs
Languages
Education
University of Siegen
Master of Science · Mechatronics · Siegen, Germany
Statistics
Experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Jorge is based in Berlin, Germany and can operate in on-site, hybrid, and remote work models.
Jorge speaks the following languages: Spanish (Native), German (Advanced), English (Advanced).
Jorge has at least 12 years of experience. During this time, Jorge has worked in at least 7 different roles and for 7 different companies. The average length of individual experience is 2 years and 6 months. Note that Jorge may not have shared all experience and actually has more experience.
Based on recent experience, Jorge would be well-suited for roles such as: Senior Developer, Lead Developer, Lead C#/.NET Software Developer.
Jorge's most recent position is Senior Developer at SafeXSmart KI Solutions UG.
In recent years, Jorge has worked for SafeXSmart KI Solutions UG, Enarmy Medical Education Platform, DHL Paket GmbH, Ashampoo GmbH & Co. KG, and Cyber Insight GmbH.
Jorge is most experienced in industries like Manufacturing, Information Technology, and Education. Jorge also has some experience in Healthcare and Transportation.
Jorge is most experienced in business areas like Information Technology, Product Development, and Quality Assurance. Jorge also has some experience in Project Management and Research and Development.
Jorge has recently worked in industries like Manufacturing, Information Technology, and Education.
Jorge has recently worked in business areas like Information Technology, Product Development, and Quality Assurance.
Jorge holds a Master in Mechatronics from University of Siegen.
Jorge is immediately available full-time for suitable projects.
Daily rate distribution
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Average rates for similar positions
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The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 7 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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