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Velizar Todorov, Founder & Chief Architect  (owner)

Velizar Todorov

Founder & Chief Architect (owner)·StellarRS

Luxembourg

Master's degree, International Affairs and Finances

Work experience

Total years of experience: 31 years, 0 months

Founder & Chief Architect (owner)

January 2017 - Present

StellarRS

Luxembourg, Luxembourg Hybrid

January 2017 - Present

AVIATION: Founder & Chief Architect of a sovereign AI-powered aviation platform (Stellar RS “ACommand”, 2017-2025), delivering a large-scale, big data-driven AI ecosystem for aviation training and operational support. Designed a cloud-native platform with extensibility to portable, military-grade “box-ready” deployments, integrating streaming databases, machine learning pipelines, model development, fine-tuning, and data distillation across multiple domains. The platform enables immersive AI-driven flight and ATC control simulation with real-time decision support. Backed by Microsoft for Startups, classified by ISUN as innovation, and presented at international AI events (London, Paris, 2026).

Engineered a low-latency Voice AI / VoIP stack (VoiceLive) with bidirectional audio streaming over WebSockets, server-side VAD, and dynamic prompt orchestration. Combined Microsoft Speech SDK pipelines with LLM inference layers to deliver multilingual, domain-adapted conversational agents for aviation radio and training scenarios.
Built a distributed, event-driven processing architecture using Kafka (Strimzi), with ingestion, chunking, and embedding workers executing asynchronous pipelines for vectorization, retrieval, and AI inference at scale. Integrated OpenSearch-based vector indexing (~30k+ embeddings) to enable retrieval-augmented reasoning and contextual decision support.
Deployed and operated the platform on Kubernetes (AKS) with Istio service mesh, implementing secure, scalable microservices, WebSocket ingress (NGINX), and fully automated CI/CD pipelines (Azure DevOps → ACR → AKS). Designed portable, “box-ready” edge deployments for constrained and high-security (military-grade) environments.
Core stack includes Node.js / Express backends, React + TypeScript + Vite frontends, Docker, Kubernetes, Kafka, OpenSearch, Azure cloud services, and real-time VoIP/streaming systems, enabling high-throughput AI workloads and low-latency interaction loops.
Recognized by Microsoft for Startups, classified as innovation by ISUN, and presented at international AI conferences in London and Paris (2026).

Company industry:
IT Services

Cloud Platform Lead Advisory, DevOps and AI innovation (contractor)

May 2024 - March 2026

Deloitte

Luxembourg, Luxembourg Hybrid

May 2024 - March 2026

• Led enterprise analytics platforms for regulated clients, modernizing architectures
with streaming databases, Azure Data Factory, Databricks, and Microsoft
Fabric ELT pipelines, and scalable, governed data lakes for secure data sharing.
• Enabled DevOps capabilities with Azure DevOps, Terraform, and Kubernetes,
delivering automated CI/CD and scalable cloud operations with quality gateways
SonarQube
• Strengthened API and platform security (OAuth2, SAML, managed identities,
network isolation) and secure AI services via API gateways for international global
platform
• Built and support of secure, private ChatGPT alternative
• Delivered Strategic collaborative apps with data-driven capabilities
• Advisor on Cloud and AI transformation strategy and risk management
• FinOps integration

Company industry:
Accounting

Crowdfunding Platform Advisory and development Architect (contractor)

November 2023 - February 2024

Estatex

Amsterdam, Netherlands Hybrid

November 2023 - February 2024

• Delivered secure cloud transformation in a highly regulated environment.
Presented to Commission de Surveillance du Secteur Financier (CSSF)
and validated.
• Designed end to end online platform hybrid microservices infrastructure on
Azure with strong governance and resilience through Front Door and content
network delivery worldwide.
• Investment Through Tokenization

Company industry:
Real Estate

Senior Consultant Cloud and Microsoft Trainer

August 2023 - November 2023

Sopra Steria

Luxembourg, Luxembourg Hybrid

August 2023 - November 2023

Implement Veeam backup for Microsoft 365 SaaS with synchronization of object storage on AWS for Disaster recovery.
Microsoft 365 consulting and training: Sharepoint, Mail, Defender
Implement Veeam Backup and Replication Azure for workloads PaaS and IaaS with backup replica to AWS cloud for disaster recovery purposes.

Company industry:
IT Services

Senior IT Principal Architect - Contractor (contractor freelance)

February 2022 - August 2023

EUROCONTROL

Brussels, Belgium Hybrid

February 2022 - August 2023

• Served as Principal Architect, leading technical teams and delivery processes for
secure cloud transformation aligned with the Azure Well-Architected Framework.
• Implemented Zero Trust security models and continuous monitoring
• Enabled scalable platforms supporting data for strategic enterprise applications,
collaborating with cross-functional international teams.

Company industry:
Airlines

Platform & Cloud Architecture Leader (contractor)

May 2019 - February 2022

Luxembourg Stock Exchange

Luxembourg, Luxembourg Hybrid

May 2019 - February 2022

• Kubernetes Team leader. Designed the whole cloud scaffold including secure
Kubernetes environments and assuring migration from OpenShift to AKS. IAC
(hands-on) implementation of the platforms and Service Mesh ISTIO.
• Architected FundsDLT analytics solutions with Databricks and Microsoft Power BI,
leveraging ELT pipelines for scalable, high-performance insights.
• Delivered full cloud transformation with governance and compliance focus
Enabled scalable platforms. Migration of all workloads, SQL Servers, Mongo DB,
virtual machines and microservices

Company industry:
Financial Services

Cloud Transformation Advisor (freelance contract)

December 2018 - May 2019

EBRC Datacenter

Luxembourg, Luxembourg

December 2018 - May 2019

• Advisory secure hybrid cloud architectures. Design, implement and test
blueprints for migration to Azure. All workloads. Implemented security
benchmarks and governance frameworks

Company industry:
Data Hosting & Storage

Main coordinator Cloud Transformation (freelance contract)

January 2018 - December 2018

ArcelorMittal

Luxembourg, Luxembourg

January 2018 - December 2018

• Led a cross-functional international team to drive large-scale transformation
of global financial and operational systems
• Delivered unified cloud platform supporting analytics and decision-making
• Hands on migration of the Enterprise ERP and CRM workloads and respective
databases

Company industry:
Industrial Production

Senior IT Advisor & Data Architect (contractor)

May 2013 - May 2017

NRB Datacenter

Herstal, Belgium Hybrid

May 2013 - May 2017

• Managed end-to-end migration of data center clients in the institutional,
insurance, and aviation industries to Office 365, Azure and AWS
• Delivered secure identity and access management solutions

Company industry:
Data Hosting & Storage

Application Team Manager (contractor)

September 2009 - May 2013

Allianz Euler Hermes

Paris, France

September 2009 - May 2013

• Developed global international platform 55 countries involved on SharePoint/SQL
as base
• Managed development team supporting financial services operations

Company industry:
Financial Services

Associate & IT Infrastructure Director (associate)

July 2004 - August 2009

Vita Natura (US)

Heerlen, Netherlands

July 2004 - August 2009

• Led IT transformation and IT innovation of pharmaceutical manufacturers.
• Built early digital commerce platform (online pharmacy) with prescriptions.

Company industry:
Pharmaceutical Manufacturing

Senior Consultant Audit (employee)

July 2000 - August 2004

Deloitte

Luxembourg, Luxembourg Hybrid

July 2000 - August 2004

• Delivered government and institutional IT systems

Company industry:
Management Consulting

It Consultant (employee)

August 1998 - July 2000

Andersen Consulting - Accenture

Paris, France

August 1998 - July 2000

• IT consulting and Microsoft training delivery
• Middleware and enterprise infrastructure support

Company industry:
Financial Auditing

IT Infrastructure Manager (employee)

August 1997 - August 1998

Siemens Business Services

Paris, France

August 1997 - August 1998

• Managed enterprise IT infrastructure and operations of Siemens Business Leasing Department

Company industry:
IT Services

Networking & Unix Technician (employee)

June 1995 - July 1997

General Motors

Villeparisis, France

June 1995 - July 1997

• Supported Unix systems and enterprise networking

Company industry:
Automotive Dealership & Distributor

Education

ICN Business School

October 2013

October 2013

Master's degree, International Affairs and Finances

France

(University of Luxembourg, University of Lorraine

September 2012

September 2012

Master's degree, Computing Innovation

Luxembourg

University St Kliment Ochridski

September 1990

September 1990

Bachelor's degree, Applied Mathematics

Bulgaria

Skills

CLOUD COMPUTING
Intermediate
CLOUD COMPUTING
Intermediate
COMPUTER HARDWARE
Intermediate
COMPUTER HARDWARE
Intermediate
DATA TRANSFORMATION
Intermediate
DATA TRANSFORMATION
Intermediate
FINANCIAL SERVICES
Intermediate
FINANCIAL SERVICES
Intermediate
INFORMATION GOVERNANCE
Intermediate
INFORMATION GOVERNANCE
Intermediate
MICROSOFT 365
Intermediate
MICROSOFT 365
Intermediate
MICROSOFT ACCESS
Intermediate
MICROSOFT ACCESS
Intermediate
MICROSOFT AZURE
Intermediate
MICROSOFT AZURE
Intermediate
PROJECT RISK MANAGEMENT
Intermediate
PROJECT RISK MANAGEMENT
Intermediate
REGULATORY AFFAIRS
Intermediate
REGULATORY AFFAIRS
Intermediate

Languages

French
Beginner
English
Beginner
Bulgarian
Beginner

Training and Certifications

Certifications
Microsoft Certified Professional + Internet
Microsoft System Engineer: MCSE
Microsoft Certified Trainer: MCT - pedagogical certificate
Sun Solaris 8 system training
HP ProLiant accredited platform specialist certified
MCTS Microsoft SharePoint 2010 certified
MCTS Microsoft Exchange 2010 certified
MCTS Microsoft Active Directory certified
Prince2: Process-based method for effective project management certified
TOEIC, ETS English certificate
Programming-in-HTML5-with-JavaScript-and-CSS3
Developing InfoPath Forms for SharePoint training
MCP Microsoft SharePoint: Designing information collaborative architecture
Active Directory Federation Services
English certification EASA level proficiency got level 6/6
AvePoint Protection, AvePoint Data Governance for SharePoint/Office 365
Enabling Office 365 services
Prince 2 Practitioner with ILX training
Developing Microsoft Azure Solutions certified
Implementing Microsoft Azure Infrastructure Solutions certified
Architecting Microsoft Azure Solutions certified cloud associate
Microsoft Certified Solution Expert: Cloud Platform and Architecture
Microsoft Certified Trainer
Nutanix Platform Professional: Hyper converged Infrastructure - certified NPP 5.0
Cloud Access Security Broker – Bleu Coat
Design and implement big data analytics solutions certified
JavaScript Object Notation JSON
Installing and Configuring Windows 10
Google Cloud Platform Fundamentals
Hybrid Cloud and Datacenter Monitoring with Operations Management Suite
Architecting Microsoft Azure Solutions 535
Microsoft Certified Trainer
Microsoft® Certified Solutions Expert: Cloud Platform and Infrastructure
AZ 102: Microsoft Azure Administrator Certification Transition
Microsoft Certified Trainer Enrollment
Microsoft Azure Security Engineer Associate
Microsoft Certified Trainer Enrollment
Microsoft Azure Architect Design
Microsoft Trainer
Designing Microsoft Azure Infrastructure Solutions: Azure Solutions Expert
Microsoft Trainer
Microsoft 365 Fundamentals
Microsoft Azure Solutions Architect Expert
Azure Security Engineer Associate
Microsoft Trainer
Microsoft Azure Solutions Architect Expert
Certificate in competence Zero Trust - Cloud Security Alliance CZT See badge
Microsoft Specialist: Architecting Microsoft Azure Solutions
Microsoft Trainer