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Sujith Quintelier

Xebia|Microsoft Services

I started my career as a developer specializing in Microsoft technologies, building applications with .NET and working on enterprise software solutions. Over the years, I expanded my expertise beyond development, diving deep into cloud architecture, DevOps, and cybersecurity. Today, with over 25 years in IT, I focus on helping businesses design, implement, and secure modern cloud solutions.

🌍 My Cloud & DevOps Journey

As a certified Azure Solutions Architect, I specialize in designing, implementing, and managing secure, scalable, and reliable cloud solutions. My journey in .NET development gave me a strong foundation in software engineering, and as cloud technologies evolved, I transitioned into Azure, DevOps, and automation, bringing a developer-first approach to cloud and infrastructure.

I’m deeply passionate about DevOps culture and automation. With certifications in GitHub Actions, GitHub Advanced Security, and Terraform, I help teams optimize their CI/CD pipelines, improve software security, and streamline cloud infrastructure with infrastructure as code (IaC).

🚀 What I Do Best

  • Cloud Architecture – Designing robust Azure environments for businesses of all sizes
  • DevOps & Automation – Implementing CI/CD pipelines, infrastructure as code (IaC), and cloud automation
  • Security & Compliance – Ensuring secure software delivery pipelines, IAM, and cloud security best practices
  • GitHub Training & Consulting – Helping teams adopt GitHub Actions, Advanced Security, and Enterprise Administration
  • Software Development – Leveraging my .NET background to build cloud-native applications

🔧 My Certifications & Expertise

I’ve spent years expanding my knowledge across Azure, DevOps, Security and AI, earning multiple certifications, including:

☁️ Cloud & Infrastructure

Azure Solutions Architect – Cloud strategy & architecture
Azure Administrator – Managing cloud infrastructure
Azure Developer – Building cloud-native applications with .NET
Azure Network Engineer – Hybrid networking & routing
Azure Cosmos DB Developer – Scalable NoSQL solutions

🛠 DevOps & GitHub

Azure DevOps Engineer – CI/CD, automation, and release management pipelines
GitHub Actions – Automated workflows for CI/CD, testing, security scanning, and infrastructure deployment
GitHub Advanced Security – Secure software development
GitHub Administration – Enterprise GitHub management
Terraform Associate (HashiCorp) – Infrastructure as Code (IaC) automation

🔐 Security & Identity

Azure Security Engineer – Threat protection & security controls
Azure Identity & Access Administrator – IAM & Azure AD management
Cybersecurity Architect – Enterprise-wide security strategy

🧠 AI

Azure AI Engineer – Developing AI solutions with cognitive services and ML models

📢 Training & Mentorship

As a GitHub Accredited Trainer, I deliver training on:
🎓 GitHub Actions | GitHub for Developers | Advanced Security | GitHub Administration | Copilot for Business

🛠 My Approach to Technology

I believe that great architecture starts with great development. My .NET background helps me bridge the gap between software development and cloud infrastructure, ensuring that applications are not only well-built but also scalable, secure, and efficient in the cloud.

I love solving complex technical challenges and finding practical solutions that help businesses innovate efficiently. Whether it’s optimizing cloud environments, implementing automation, or securing software supply chains, I focus on scalability, security, and reliability.

Beyond the technical side, I enjoy mentoring teams, guiding DevOps transformations, and exploring emerging technologies to stay ahead in the ever-evolving cloud landscape.

🌟 Let’s Connect!

If you’re interested in cloud, DevOps, or GitHub best practices, let’s chat! Whether you’re looking for advice, collaboration, or training, I’m always happy to share knowledge and explore new opportunities.

📩 Reach out, and let’s build something awesome together! 🚀

Interests

  • Azure
  • Dev(Sec)Ops
  • GitHub
  • Kubernetes
  • IaC(Terraform, Bicep)
  • Security
  • NOSQL
  • Programming Languages
  • Application Development
  • .NET
  • Architecture
  • AI
  • ML
  • Cognitive Services

Education

  • Applied Informatics, 2000

    Karel de Grote Hogeschool

  • All Weapons, 1997

    Voorbereidende Divisie Koninklijke Militaire School

  • Economics-Mathematics, 1996

    Koninklijk Atheneum Lokeren

Experiences

  • Jun 12, 2023 - Present.Antwerp
    Azure Architect | DevOps Enabler | GitHub Enthousiast | TrainerAzure Architect | DevOps Enabler | GitHub Enthousiast | Trainer
    Xebia FKA Xebia|Xpirit FKA Xpirit

    Empowering customers with Azure, DevOps, and Cloud Native solutions while driving internal excellence through innovation, training, and strategic growth.

  • Jan 18, 2021 - Jun 9, 2023.Mechelen
    Azure ArchitectAzure Architect
    Ordina

    Helping customers excel in Azure architecture, DevOps, governance, security, cost management, and data strategy, while driving internal innovation, sales enablement, and expert training in Azure, Kubernetes, and DevOps.

  • Jul 1, 2019 - Jan 18, 2021.Kontich
    Cloud Solutions ArchitectCloud Solutions Architect
    Arxus

    Helping customers with Azure architecture, DevOps, governance, security, cost optimization, and data strategy, while driving internal growth through product development, sales support, and MSP specialization, and delivering expert Azure, Kubernetes, and DevOps training.

  • Nov 1, 2012 - Jun 30, 2019.Mechelen
    Senior Azure Consultant and Senior.NET DeveloperSenior Azure Consultant and Senior.NET Developer
    Euricom

    Helping businesses optimize Azure architecture, streamline DevOps, and deliver high-value .NET solutions with agility and innovation.

  • Dec 1, 2009 - Oct 31, 2012.Mechelen
    Senior .NET DeveloperSenior .NET Developer
    Ordina

    Expert in consultancy, .NET development, and enterprise solutions, specializing in Windows Forms, ASP.NET, WPF, WCF, EF, Silverlight, ADO.NET, Windows Phone, SQL Server, Oracle, and Enterprise Library.

  • Dec 1, 2006 - Dec 31, 2009.Boortmeerbeek
    Software DeveloperSoftware Developer
    ICMS

    Expert in .NET development, specializing in Windows Forms, ASP.NET, ADO.NET, SQL Server, Lucene, and Solr for scalable and high-performance solutions.

  • Aug 1, 2006 - Nov 30, 2006.Kontich
    Software DeveloperSoftware Developer
    Sogeti

    Experienced in consultancy, specializing in VB6, ASP, and SQL Server for legacy system support and modernization.

  • Apr 1, 2004 - Jul 31, 2006.Zwijnaarde
    Software DeveloperSoftware Developer
    Sofico

    Expert in Java, PL/SQL, and data integration, delivering robust solutions for seamless data processing and enterprise applications.

  • Oct 1, 2002 - Mar 31, 2004.Lokeren
    Software DeveloperSoftware Developer
    LBCO

    Experienced System Engineer specializing in Magic eDeveloper, delivering scalable and efficient software solutions.

  • Jul 1, 2000 - Sep 30, 2002.Schelle
    Software DeveloperSoftware Developer
    Info Support

    Experienced Consultant specializing in VB6, SQL Server, and Crystal Reports for legacy system support, data management, and reporting solutions.

Accomplishments

GitHub Sales Professional: Sales Validation

GitHub

Dec 5, 2024 - Present

Build the foundational sales knowledge needed to position GitHub Enterprise solutions to customers.


Microsoft Certified: Azure AI Fundamentals

Microsoft

Jun 21, 2024 - Present

Learners demonstrate fundamental AI concepts related to the development of software and services of Microsoft Azure to create AI solutions.


GitHub Sales Professional

GitHub

Jun 12, 2024 - Present

Learners demonstrate to position and sell GitHub Enterprise solutions.


Applied Skills - Migrate SQL Server workloads to Azure SQL Database

Microsoft

Jun 7, 2024 - Present

Learners demonstrate the ability to assess and migrate SQL Server workloads to Azure SQL Database


Microsoft Certified: Azure Fundamentals

Microsoft

May 2, 2024 - Present

Learners demonstrate foundational knowledge of cloud concepts, core Azure services, plus Azure management and governance features and tools.


Applied Skills - Implement security through a pipeline using Azure DevOps

Microsoft

Jan 8, 2024 - Present

Learners demonstrate the ability to implement secure Azure Pipelines.


Applied Skills - Build an Azure AI Vision solution

Microsoft

Dec 4, 2023 - Present

Learners demonstrate the ability to build computer vision solutions by using Azure AI Vision.


Applied Skills - Create an intelligent document processing solution with Azure AI Document Intelligence

Microsoft

Nov 20, 2023 - Present

Learners demonstrate the ability to create and implement Azure AI Document Intelligence solutions.


Applied Skills - Build a natural language processing solution with Azure AI Language

Microsoft

Nov 20, 2023 - Present

Learners demonstrate the ability to create a natural language processing (NLP) solution by using Azure AI Language.


Applied Skills - Deploy and configure Azure Monitor

Microsoft

Nov 20, 2023 - Present

Learners demonstrate the ability to deploy and configure monitoring for Azure infrastructure.


Applied Skills - Secure storage for Azure Files and Azure Blob Storage

Microsoft

Nov 14, 2023 - Present

Learners demonstrate the ability to securely store business data by using Azure Blob Storage and Azure Files.


Applied Skills - Configure secure access to your workloads using Azure networking

Microsoft

Nov 13, 2023 - Present

Learners demonstrate the ability to secure resources by using Azure virtual networking solutions.


Applied Skills - Develop an ASP.NET Core web app that consumes an API

Microsoft

Nov 13, 2023 - Present

Learners demonstrate the ability to develop an ASP.NET Core Razor Pages app that consumes an API to retrieve, create, and update data.


Applied Skills - Deploy containers by using Azure Kubernetes Service

Microsoft

Nov 13, 2023 - Present

Learners demonstrate the ability to work with containers, container orchestration with Kubernetes, and manage clusters on Azure Kubernetes Service (AKS).


GitHub Certified Partner: GitHub Foundations

GitHub

Oct 16, 2023 - Present

Passing the GitHub Foundations certification exam validates subject matter expertise by measuring entry-level skills with GitHub basics like repositories, commits, branching, markdowns, and project management.


GitHub Certified Partner: GitHub Admin

GitHub

Sep 24, 2023 - Present

Passing the GitHub Administration certification exam validates subject matter expertise with the deployment and administration of GitHub Enterprise as well as how to provide support for GitHub users in the enterprise.


GitHub Certified Partner: GitHub Advanced Security

GitHub

Jun 26, 2023 - Present

Passing the GitHub Advanced Security certification exam validates subject matter expertise with applying software supply chain security patterns and practices with GitHub Advanced Security in the enterprise.


GitHub Accreditations

GitHub

Jun 1, 2023 - Jun 1, 2026

These accreditations allows you to give training for GitHub Actions, GitHub for Developers, GitHub Administration, GitHub Advanced Security Getting Started and GitHub Copilot for Business Fundamentals. They also allow you to handle migrations processes from GHES, GHEC, Azure DevOps Server/Cloud, Gitlab, Bitbucket Server/Cloud, Any Git repository, Any Mercurial repository, Any Subversion repository, Any Team Foundation Version Control repository, Any Perforce repository, Any other repository to GHEC. They also allow you to handle migrations processes from GHES, GHEC, Azure DevOps, Gitlab, Bitbucket Server/Cloud, Any Git repository, Any Mercurial repository, Any Subversion repository, Any Team Foundation Version Control repository (TFVC), Any Perforce repository, Any other repository to GHES. They also allow you to handle migrations from Azure DevOps, Bitbucket Server, GHES, GHEC using GitHub Enterprise Importer.


AWS Cloud Quest: Cloud Practitioner

AWS Cloud Quest

Mar 28, 2023 - Present

Earners of this badge have demonstrated basic solution building knowledge using AWS services and have a fundamental understanding of AWS Cloud concepts. Badge earners have acquired hands-on experience with compute, networking, database and security services.


GitHub Certified Partner: GitHub Actions

GitHub

Sep 8, 2022 - Present

Passing the GitHub Actions certification exam validates subject matter expertise with applying continuous integration/continuous delivery (CI/CD) patterns and practices using GitHub Actions in the enterprise.


Microsoft Certified: Cybersecurity Architect Expert

Microsoft

Jul 28, 2022 - Present

Earning Cybersecurity Architect Expert validates subject matter expertise in designing and evolving the cybersecurity strategy to protect an organization’s mission and business processes across all aspects of the enterprise architecture.


Microsoft Certified: Azure Identity and Access Administrator Associate

Microsoft

Jul 7, 2022 - Present

Earning Azure Identity and Access Administrator validates the skills and knowledge to design, implement, and operate an organization’s identity and access management systems using Azure AD. Candidates provide a seamless experience and self-service management capabilities for all users. They are responsible for troubleshooting, monitoring, and reporting of the identity and access environment.


Microsoft Certified: Azure Network Engineer Associate

Microsoft

Jun 24, 2022 - Present

Earning Azure Network Engineer Associate validates skills and subject matter expertise in planning, implementing, and maintaining Azure networking solutions, including hybrid networking, connectivity, routing, security, and private access to Azure services. Professionals in this role deploy networking solutions using Azure Portal and other methods, including PowerShell, Azure Command-Line Interface (CLI), and Azure Resource Manager templates (ARM templates).


Security Journey - Belts

Security Journey

May 1, 2022 - Present

The Security Journey White Belt path aligns vocabulary and security concepts across your development teams and everyone who supports them. This secure code training improves communication and establishes a security-first mindset. The Security Journey Yellow Belt advances the organizational security foundation by diving deeper into the core concepts and principals of the White Belt. Developers and technical teams examine security truths and vulnerabilities necessary to improving code security. Our Green Belts train developers to infuse security into their everyday development environments. From C#, TypeScript, DevSecOps, API, Containerization and Web App Testing, these belts apply the core principles, vocabulary, tools and concepts to specific code languages while offering hands-on experiments the implement what is learned.


Microsoft Certified: Azure Cosmos DB Developer Specialty

Microsoft

Mar 10, 2022 - Present

Earning the Azure Cosmos DB Developer Specialty certification shows subject matter expertise designing, implementing, and monitoring cloud-native applications that store and manage data. Responsibilities for this role include designing and implementing data models and data distribution, loading data into an Azure Cosmos DB database, and optimizing and maintaining the solution. This professional integrates the solution with other Azure services. He also designs, implements, and monitors solutions that consider security, availability, resilience, and performance requirements. He has solid knowledge and experience developing apps for Azure and working with Azure Cosmos DB database technologies. He should be proficient at developing applications by using the Core (SQL) API and SDKs, writing efficient queries and creating appropriate index policies, provisioning and managing resources in Azure, and creating server-side objects with JavaScript. He should be able to interpret JSON, read C# or Java code, and use PowerShell.


HashiCorp Certified: Terraform Associate (002)

HashiCorp

Jul 8, 2021 - Present

The Terraform Associate certification is for Cloud Engineers specializing in operations, IT, or development who know the basic concepts and skills associated with open source HashiCorp Terraform. This person understands which enterprise features exist and what can and cannot be done using the open source offering.


HashiCorp Certified: Terraform Associate (003)

HashiCorp

Jul 8, 2021 - Present

The Terraform Associate certification is for Cloud Engineers specializing in operations, IT, or development who know the basic concepts and skills associated with open source HashiCorp Terraform. This person understands which enterprise features exist and what can and cannot be done using the open source offering.


Microsoft Certified: Azure AI Engineer Associate

Microsoft

Jan 11, 2021 - Present

Earning the Azure AI Engineer Associate certification validates the skills and knowledge to use Cognitive Services, Machine Learning, and Knowledge Mining to architect and implement Microsoft AI solutions involving natural language processing, speech, computer vision, bots, and agents.


Microsoft Certified: Azure Developer Associate

Microsoft

Aug 26, 2020 - Present

Earning Azure Developer Associate certification validates the skills and knowledge to design, build, test, and maintain cloud applications and services on Microsoft Azure. Candidates participate in all phases of cloud development from requirements definition and design, to development, deployment, and maintenance.


Microsoft Certified: DevOps Engineer Expert

Microsoft

Aug 12, 2020 - Present

Earning the DevOps Engineer Expert certification demonstrates the ability to combine people, process, and technologies to continuously deliver valuable products and services that meet end user needs and business objectives. DevOps professionals streamline delivery by optimizing practices, improving communications and collaboration, and creating automation.


Microsoft Certified: Azure Administrator Associate

Microsoft

Aug 7, 2020 - Present

Earning Azure Administrator Associate certification validates the skills and knowledge to implement, manage, and monitor an organization’s Microsoft Azure environment. Candidates have a deep understanding of each implementing, managing, and monitoring identity, governance, storage, compute, and virtual networks in a cloud environment, plus provision, size, monitor, and adjust resources, when needed.


Microsoft Certified: Azure Security Engineer Associate

Microsoft

Apr 23, 2020 - Present

Earning Azure Security Engineer Associate certification validates the skills and knowledge to implement security controls and threat protection, manage identity and access, and protect data, applications, and networks in cloud and hybrid environments as part of end-to-end infrastructure.


Microsoft Certified: Azure Solutions Architect Expert

Microsoft

Feb 8, 2019 - Present

Earning the Azure Solutions Architect Expert certification demonstrates skills and knowledge to advise stakeholders and translate business requirements into secure, scalable, and reliable solutions. Candidates have advanced experience and knowledge across various aspects of IT operations, including networking, virtualization, identity, security, business continuity, disaster recovery, data management, budgeting, and governance - managing how decisions in each area affects an overall solution.


AZ-301 Microsoft Azure Architect Design

Microsoft

Feb 8, 2019 - Present

Passing Exam AZ-301 Microsoft Azure Architect Design validates the skills and knowledge to advise stakeholders and translate business requirements into secure, scalable, and reliable solutions. Candidates have advanced experience and knowledge across various aspects of IT operations, including networking, virtualization, identity, security, business continuity, disaster recovery, data management, budgeting, and governance - managing how decisions in each area affects an overall solution.


AZ-300 Microsoft Azure Architect Technologies

Microsoft

Feb 7, 2019 - Present

Passing Exam AZ-300 Microsoft Azure Architect Technologies validates the skills and knowledge to advise stakeholders and translate business requirements into secure, scalable, and reliable solutions. Candidates have advanced experience and knowledge across various aspects of IT operations, including networking, virtualization, identity, security, business continuity, disaster recovery, data management, budgeting, and governance - managing how decisions in each area affects an overall solution.


LFS258 Kubernetes Fundamentals

The Linux Foundation

Nov 28, 2018 - Present

This course teaches how to use the container management platform used by companies like Google to manage their application infrastructure.


LFS259 Kubernetes Fundamentals

The Linux Foundation

Nov 28, 2018 - Present

This course teaches how to containerize, host, deploy, and configure an application in a multi-node cluster. Starting with a simple Python script, you will define application resources and use core primitives to build, monitor and troubleshoot scalable applications in Kubernetes. Working with network plugins, security and cloud storage, you will be exposed to many of the features needed to deploy an application in a production environment.


MCSE: Cloud Platform and Infrastructure — Certified 2017

Microsoft

Jun 20, 2017 - Present

Earners of the MCSE: Cloud Platform and Infrastructure certification have demonstrated the skills required to run a highly efficient and modern data center, with expertise in cloud technologies, identity management, systems management, virtualization, storage and networking. Earning this certification qualifies an individual for such jobs as cloud administrator, cloud architect, computer support specialist, and information security analyst.


Exam 532: Developing Microsoft Azure Solutions

Microsoft

Jun 20, 2017 - Present

This exam is for candidates who are experienced in designing, programming, implementing, automating, and monitoring Microsoft Azure solutions. Passing this exam validates a candidate’s ability to create and manage Azure Resource Manager Virtual Machines, design and implement storage and data strategy, manage identity, application, and network services, and design and implement Azure PaaS compute and web and mobile services.


MCSD: App Builder — Certified 2017

Microsoft

Jun 20, 2017 - Present

Earners of the MCSD: App Builder certification have demonstrated the skills required to build modern mobile and/or web applications and services. Earning this certification qualifies an individual for a position as an application developer.


Exam 534: Architecting Microsoft Azure Solutions

Microsoft

May 28, 2017 - Present

This exam is for candidates who are interested in validating their Microsoft Azure solution design skills. Passing this exam validates a candidate’s ability to identify tradeoffs and make decisions for designing public and hybrid cloud solutions. Earners of this badge are able to define the appropriate infrastructure and platform solutions to meet the required functional, operational, and deployment requirements through the solution lifecycle.


Exam 533: Implementing Microsoft Azure Infrastructure Solutions

Microsoft

Apr 21, 2017 - Present

This exam is for candidates who are experienced in implementing an infrastructure solution in Microsoft Azure. Passing this exam validates a candidate’s ability to design, implement, and manage Azure App Service Apps, Azure Resource Manager Virtual Machines, storage strategies, Azure Active Directory, virtual networks, and ARM templates.


MCSA: Web Applications - Certified 2016

Microsoft

Sep 26, 2016 - Present

Earners of the MCSA: Web Applications certification have demonstrated the skills required to implement modern web apps. They are qualified for a position as a web developer or web administrator.


MCSD: App Builder — Certified 2016

Microsoft

Sep 26, 2016 - Present

Earners of the MCSD: App Builder certification have demonstrated the skills required to build modern mobile and/or web applications and services. Earning this certification qualifies an individual for a position as an application developer.


Exam 480: Programming in HTML5 with JavaScript and CSS3

Microsoft

Feb 26, 2014 - Present

Passing Exam 480: Programming in HTML5 with JavaScript and CSS3 validates a candidate’s ability to access and secure data as well as implement document structures, objects, and program flow.

Badges

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