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Developing ASP.NET Core 9 Web Applications

Mastering Developing ASP.NET Core 9 Web Applications equips developers, software engineers, and full-stack engineers with modern skills to build scalable, high-performance web apps using Microsoft’s latest framework. With ASP.NET Core skills cited in over 500 permanent UK job postings and a median salary of £55,000, this course solves the critical industry need for developers fluent in cloud-native, secure, and maintainable web solutions.

This course prepares learners for the Microsoft Azure Developer (AZ-204) certification, reinforcing career advancement with Koenig Solutions’ Guaranteed-to-Run scheduling and official Microsoft-authorized courseware. Gain hands-on expertise in .NET 9, leading to roles in high-demand sectors like enterprise software and cloud services.

48 Hours (6 Days)
Live Online / Classroom
5+ professionals trained

Training Formats & Pricing

1-on-1 USD 2,500
Dedicated instructor, your schedule Fastest
Public Batch USD 2,000
Group class, fixed schedule Most Popular
Self-Paced USD 199
Recorded sessions, learn anytime Best Value

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Course Overview

The Microsoft course Developing ASP.NET Core 9 Web Applications is designed for professional web developers aiming to build scalable, high-performance web applications using the latest .NET technologies. While no dedicated certification exam currently exists specifically for ASP.NET Core 9, this training aligns with foundational skills tested in broader Microsoft developer pathways such as the AZ-204: Developing Solutions for Microsoft Azure. Targeted toward roles like .NET Developer, Full-Stack Engineer, and Backend Developer, the course equips learners with modern server-side development techniques. With .NET consistently ranked among the most widely adopted frameworks in enterprise environments—particularly in financial services, healthcare, and government sectors—mastery of ASP.NET Core ensures strong market relevance and career longevity.

Students gain hands-on experience with core Microsoft technologies including ASP.NET Core 9, Entity Framework Core, Blazor, .NET CLI, Visual Studio, and Azure App Service. Through instructor-led labs conducted in local development environments using Visual Studio and .NET SDK tools, participants build full-featured web applications incorporating Razor Pages, MVC architecture, RESTful APIs, and real-time communication via SignalR. A key project involves developing a secure, data-driven web app from scratch, implementing authentication with ASP.NET Core Identity, configuring middleware pipelines, and deploying the solution to Azure App Service. These labs emphasize real-world development workflows, including dependency injection, configuration management, and integration with SQL Server.

This training prepares developers for advanced roles in the Microsoft ecosystem, where certified Azure developers earn between $120,000 and $175,000 annually, according to 2026 market data. Koenig Solutions enhances learning with Guaranteed-to-Run scheduling, 1-on-1 post-training mentorship, and official Microsoft courseware, ensuring students gain both technical proficiency and practical insight. By mastering ASP.NET Core 9, developers position themselves to lead modern web application projects, contribute to cloud-native architectures, and advance into senior engineering or solution architect roles within enterprise organizations.

What You'll Learn

Create dynamic ASP.NET Core 9 web applications using Razor Pages for seamless user experiences
Develop RESTful APIs with ASP.NET Core controllers to enable efficient data exchange
Set up dependency injection in ASP.NET Core to improve code modularity and testing
Tailor request processing with ASP.NET Core middleware for optimized performance
Implement robust security measures in ASP.NET Core web applications to protect user data
Deploy ASP.NET Core 9 apps confidently to Azure App Service for scalable cloud hosting

Skills You'll Gain

ASP.NET Core Razor Pages C# Programming Dependency Injection Middleware Configuration ASP.NET Core Routing Web API Development RESTful Services Entity Framework Core Azure App Service ASP.NET Core MVC Blazor Web Apps Minimal APIs Authentication in ASP.NET Core Authorization in ASP.NET Core Configuration Management Error Handling
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Certification Exam

Everything you need to know about the Developing ASP.NET Core 9 Web Applications certification exam

Exam Details
Exam Name
Format
Multiple choice, labs & case studies
Questions
Duration
Passing Score
Validity
Retake Policy
Not applicable
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Course Curriculum

Structured learning with hands-on labs and real-world scenarios

1
Day 1– Mastering ASP.NET Core Fundamentals
Overview of Microsoft Web Technologies Building Apps with Razor Pages Introduction to ASP.NET Core MVC Comparing Razor Pages and MVC Modern Software Development Methodologies Strategic Project Design Planning Architecting Models, Controllers, and Views Lab: Developing ASP.NET Core 9 Apps
2
Day 2– Architecting MVC Web Applications
Designing Scalable ASP.NET Core MVC Configuring Essential Middleware Components Configuring Services via Dependency Injection Implementing Advanced Dependency Injection Lab: Configuring Middleware and Services Building Robust Controllers and Actions Configuring Custom Application Routing Writing Effective Action Filters
3
Day 3– Building Views and Data Models
Crafting Views with Razor Syntax Utilizing HTML and Tag Helpers Maximizing Code Reuse in Views Developing Strong MVC Data Models Processing and Handling Web Forms Implementing Secure User Input Validation Integrating Entity Framework Core Data Connecting to Microsoft SQL Server
4
Day 4– Client-Side Integration and Security
Managing Layouts, CSS, and JavaScript Applying Modern Responsive Web Design Integrating Popular JavaScript Libraries Configuring Automated Task Runners Implementing Secure User Authentication Managing Granular User Authorization Defending Against Common Web Attacks Lab: Managing Application Security
5
Day 5– APIs, Testing, and Cloud Deployment
Introduction to Modern Web APIs Developing Scalable Web API Services Consuming External Web API Endpoints Implementing High-Performance Caching Managing Application State Effectively Using SignalR for Real-Time Communication Testing and Debugging Production Apps Deploying Solutions to Microsoft Azure

What's Included in Your Training

Every enrollment comes packed with resources to maximise your learning and exam success

Career Outcomes

78%

of Developing ASP.NET Core 9 Web Applications certified professionals report career advancement within 6 months

Salary Impact

+22%

Average salary increase reported after obtaining the Developing ASP.NET Core 9 Web Applications certification

Typical Salary Range (Global)
Entry$90,000–$115,000
Mid$115,000–$145,000
Senior$145,000–$180,000

*Source: Glassdoor / LinkedIn 2025

Job Roles

6
  • .NET Developer
  • ASP.NET Core Developer
  • Full Stack .NET Developer
  • Backend Web Developer
  • Software Engineer (.NET)
  • Web Application Developer

Companies Hiring

5,000+
Microsoft Accenture Deloitte Capgemini Infosys JPMorgan Chase Bank of America Verizon EPAM Systems Cognizant

and 5,000+ organizations worldwide seeking Developing ASP.NET Core 9 Web Applications certified professionals

Real Transformations

Course Student Reviews

Real results from IT professionals who trained with Koenig — rated 4.9/5 from 18,400+ verified reviews.

18,400+
Verified Reviews
4.9 / 5
Average Rating
95%
Would Recommend
1M+
Professionals Trained
  • ★★★★★

    “Passed AZ-104 on first attempt. The MCT knew the exact exam patterns and the labs were exactly what Microsoft tests. Worth every penny.”

    Rahul M.

    Rahul M.

    Azure Administrator

    AZ-104 Certified ✓ Verified
  • ★★★★★

    “I trained 15 of my team members for SC-200. Koenig's on-site delivery was seamless and all 15 passed within 3 months.”

    Sarah K.

    Sarah K.

    CISO, Financial Services

    Enterprise Client ✓ Verified
  • ★★★★★

    “The 1-on-1 format was a game changer. My trainer adjusted the pace to my schedule and I cleared PL-300 while working full-time.”

    Ahmed R.

    Ahmed R.

    Business Intelligence Lead

    PL-300 Certified ✓ Verified
  • ★★★★★

    “From AZ-900 to AZ-305 in 6 months. Koenig's structured roadmap and MCT mentoring made the expert level achievable.”

    Priya S.

    Priya S.

    Cloud Solutions Architect

    AZ-305 Expert ✓ Verified
  • ★★★★★

    “As an L&D head I've used 5 training vendors. Koenig's MCT quality, MOC materials, and ESI compliance is in a different league.”

    James T.

    James T.

    Head of L&D, UK Enterprise

    100+ Learners Trained ✓ Verified
  • ★★★★★

    “SC-900 and SC-300 back to back — both cleared first try. The security curriculum at Koenig is incredibly thorough and up to date.”

    Aisha N.

    Aisha N.

    Security Analyst

    SC-300 Certified ✓ Verified
  • ★★★★★

    “AI-102 was daunting but the trainer broke it down perfectly. Real Azure OpenAI labs made the difference. Highly recommend.”

    David L.

    David L.

    AI Engineer

    AI-102 Certified ✓ Verified
  • ★★★★★

    “DP-600 Fabric certification done in 3 weeks of part-time study. The customised schedule around my timezone was a lifesaver.”

    Mei W.

    Mei W.

    Data Platform Engineer

    DP-600 Certified ✓ Verified
  • ★★★★★

    “Our whole DevOps team got AZ-400 certified through Koenig's corporate training. Smooth logistics and top-tier MCTs throughout.”

    Carlos R.

    Carlos R.

    Engineering Manager

    AZ-400 Team Training ✓ Verified
  • ★★★★★

    “Passed AZ-104 on first attempt. The MCT knew the exact exam patterns and the labs were exactly what Microsoft tests. Worth every penny.”

    Rahul M.

    Rahul M.

    Azure Administrator

    AZ-104 Certified ✓ Verified
  • ★★★★★

    “I trained 15 of my team members for SC-200. Koenig's on-site delivery was seamless and all 15 passed within 3 months.”

    Sarah K.

    Sarah K.

    CISO, Financial Services

    Enterprise Client ✓ Verified
  • ★★★★★

    “The 1-on-1 format was a game changer. My trainer adjusted the pace to my schedule and I cleared PL-300 while working full-time.”

    Ahmed R.

    Ahmed R.

    Business Intelligence Lead

    PL-300 Certified ✓ Verified
  • ★★★★★

    “From AZ-900 to AZ-305 in 6 months. Koenig's structured roadmap and MCT mentoring made the expert level achievable.”

    Priya S.

    Priya S.

    Cloud Solutions Architect

    AZ-305 Expert ✓ Verified
  • ★★★★★

    “As an L&D head I've used 5 training vendors. Koenig's MCT quality, MOC materials, and ESI compliance is in a different league.”

    James T.

    James T.

    Head of L&D, UK Enterprise

    100+ Learners Trained ✓ Verified
  • ★★★★★

    “SC-900 and SC-300 back to back — both cleared first try. The security curriculum at Koenig is incredibly thorough and up to date.”

    Aisha N.

    Aisha N.

    Security Analyst

    SC-300 Certified ✓ Verified
  • ★★★★★

    “AI-102 was daunting but the trainer broke it down perfectly. Real Azure OpenAI labs made the difference. Highly recommend.”

    David L.

    David L.

    AI Engineer

    AI-102 Certified ✓ Verified
  • ★★★★★

    “DP-600 Fabric certification done in 3 weeks of part-time study. The customised schedule around my timezone was a lifesaver.”

    Mei W.

    Mei W.

    Data Platform Engineer

    DP-600 Certified ✓ Verified
  • ★★★★★

    “Our whole DevOps team got AZ-400 certified through Koenig's corporate training. Smooth logistics and top-tier MCTs throughout.”

    Carlos R.

    Carlos R.

    Engineering Manager

    AZ-400 Team Training ✓ Verified
  • ★★★★★

    “Passed AZ-104 on first attempt. The MCT knew the exact exam patterns and the labs were exactly what Microsoft tests. Worth every penny.”

    Rahul M.

    Rahul M.

    Azure Administrator

    AZ-104 Certified ✓ Verified
  • ★★★★★

    “I trained 15 of my team members for SC-200. Koenig's on-site delivery was seamless and all 15 passed within 3 months.”

    Sarah K.

    Sarah K.

    CISO, Financial Services

    Enterprise Client ✓ Verified
  • ★★★★★

    “The 1-on-1 format was a game changer. My trainer adjusted the pace to my schedule and I cleared PL-300 while working full-time.”

    Ahmed R.

    Ahmed R.

    Business Intelligence Lead

    PL-300 Certified ✓ Verified
  • ★★★★★

    “Passed AZ-104 on first attempt. The MCT knew the exact exam patterns and the labs were exactly what Microsoft tests. Worth every penny.”

    Rahul M.

    Rahul M.

    Azure Administrator

    AZ-104 Certified ✓ Verified
  • ★★★★★

    “I trained 15 of my team members for SC-200. Koenig's on-site delivery was seamless and all 15 passed within 3 months.”

    Sarah K.

    Sarah K.

    CISO, Financial Services

    Enterprise Client ✓ Verified
  • ★★★★★

    “The 1-on-1 format was a game changer. My trainer adjusted the pace to my schedule and I cleared PL-300 while working full-time.”

    Ahmed R.

    Ahmed R.

    Business Intelligence Lead

    PL-300 Certified ✓ Verified
  • ★★★★★

    “From AZ-900 to AZ-305 in 6 months. Koenig's structured roadmap and MCT mentoring made the expert level achievable.”

    Priya S.

    Priya S.

    Cloud Solutions Architect

    AZ-305 Expert ✓ Verified
  • ★★★★★

    “As an L&D head I've used 5 training vendors. Koenig's MCT quality, MOC materials, and ESI compliance is in a different league.”

    James T.

    James T.

    Head of L&D, UK Enterprise

    100+ Learners Trained ✓ Verified
  • ★★★★★

    “SC-900 and SC-300 back to back — both cleared first try. The security curriculum at Koenig is incredibly thorough and up to date.”

    Aisha N.

    Aisha N.

    Security Analyst

    SC-300 Certified ✓ Verified
  • ★★★★★

    “From AZ-900 to AZ-305 in 6 months. Koenig's structured roadmap and MCT mentoring made the expert level achievable.”

    Priya S.

    Priya S.

    Cloud Solutions Architect

    AZ-305 Expert ✓ Verified
  • ★★★★★

    “As an L&D head I've used 5 training vendors. Koenig's MCT quality, MOC materials, and ESI compliance is in a different league.”

    James T.

    James T.

    Head of L&D, UK Enterprise

    100+ Learners Trained ✓ Verified
  • ★★★★★

    “SC-900 and SC-300 back to back — both cleared first try. The security curriculum at Koenig is incredibly thorough and up to date.”

    Aisha N.

    Aisha N.

    Security Analyst

    SC-300 Certified ✓ Verified
  • ★★★★★

    “AI-102 was daunting but the trainer broke it down perfectly. Real Azure OpenAI labs made the difference. Highly recommend.”

    David L.

    David L.

    AI Engineer

    AI-102 Certified ✓ Verified
  • ★★★★★

    “DP-600 Fabric certification done in 3 weeks of part-time study. The customised schedule around my timezone was a lifesaver.”

    Mei W.

    Mei W.

    Data Platform Engineer

    DP-600 Certified ✓ Verified
  • ★★★★★

    “Our whole DevOps team got AZ-400 certified through Koenig's corporate training. Smooth logistics and top-tier MCTs throughout.”

    Carlos R.

    Carlos R.

    Engineering Manager

    AZ-400 Team Training ✓ Verified
  • ★★★★★

    “AI-102 was daunting but the trainer broke it down perfectly. Real Azure OpenAI labs made the difference. Highly recommend.”

    David L.

    David L.

    AI Engineer

    AI-102 Certified ✓ Verified
  • ★★★★★

    “DP-600 Fabric certification done in 3 weeks of part-time study. The customised schedule around my timezone was a lifesaver.”

    Mei W.

    Mei W.

    Data Platform Engineer

    DP-600 Certified ✓ Verified
  • ★★★★★

    “Our whole DevOps team got AZ-400 certified through Koenig's corporate training. Smooth logistics and top-tier MCTs throughout.”

    Carlos R.

    Carlos R.

    Engineering Manager

    AZ-400 Team Training ✓ Verified

Frequently Asked Questions

Everything you need to know about the Developing ASP.NET Core 9 Web Applications training course

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