React + TypeScript: Router & Redux Intermediate
The React with TypeScript course by Koenig Original equips front-end developers and full-stack engineers with the skills to build scalable, type-safe web applications using two of the most in-demand technologies in modern development. With 81 professionals already trained, this course solves the critical pain point of debugging runtime errors in JavaScript by leveraging TypeScript’s static typing, significantly improving code quality and maintainability in production environments.
This course prepares learners for the JSE-40-01 certification exam, enhancing career prospects as a senior React developer or enterprise front-end architect. Koenig’s Guaranteed-to-Run scheduling ensures timely access to live training, while hands-on labs solidify real-world proficiency. Graduates gain the expertise to lead high-performance UI development teams in top tech firms.
Training Formats & Pricing
100% Happiness Guarantee · Free Rescheduling · Secure Payment
Course Overview
The React with TypeScript course by Koenig Original is designed for developers seeking to master modern web development using two of the most in-demand technologies in the industry. This comprehensive program prepares learners for the JSE-40-01 certification exam, validating expertise in building type-safe React applications. It is ideal for junior front-end developers, full-stack engineers, and software professionals transitioning into React-based roles. With 78% of current frontend job postings requiring TypeScript proficiency, this course addresses a critical market need and equips participants with skills adopted by leading tech firms globally.
Students engage with core tools including TypeScript Compiler (tsc), Visual Studio Code, ESLint, Jest, Webpack, and the Fetch API within Koenig’s Flexi Video learning environment. The hands-on labs emphasize real-world application through projects such as building a TypeScript-enhanced E-commerce Product Management System that integrates asynchronous data handling using Promises and async/await. Learners configure type-safe React components, implement error handling utilities, and refactor JavaScript codebases into TypeScript, simulating professional workflows. A key project involves creating an API service that fetches and processes data from the Dummy JSON Products API, demonstrating mastery in state management and component architecture.
This course prepares candidates for the globally recognized JSE™ – Certified Entry-Level JavaScript Programmer credential, which validates foundational proficiency in modern web development. Certified professionals typically see a 10–15% salary premium over peers with only JavaScript skills, with React with TypeScript developers in the U.S. earning between $120,000 and $180,000 annually. Koenig Solutions enhances learning with Guaranteed-to-Run scheduling and access to official courseware, ensuring consistent, high-quality training. Upon completion, graduates are positioned for career advancement into roles such as Frontend Engineer, Full-Stack Developer, or TypeScript Specialist, ready to contribute to scalable, maintainable applications in enterprise environments.
What You'll Learn
Skills You'll Gain
Prerequisites
- ["Proficiency in JavaScript ES6+ features like arrow functions, classes, modules, and asynchronous programming with Promises and async/await is essential for mastering React with TypeScript. A solid understanding of TypeScript fundamentals, including types, interfaces, classes, and type annotations, helps build scalable, type-safe React applications. Experience with Node.js and npm is crucial for managing packages and setting up a development environment efficiently. Familiarity with creating and managing components using JSX syntax enables learners to develop dynamic user interfaces. Basic knowledge of RESTful APIs and HTTP methods is necessary for effective data fetching and integration. Hands-on experience with Visual Studio Code or similar code editors ensures smooth development workflows. These prerequisites, held by over 80% of successful React with TypeScript learners, form the foundation for mastering advanced concepts and achieving certification success with Koenig Original."
Certification Exam
Everything you need to know about the JSE-40-01 Exam certification exam
What's Included in Your Training
Every enrollment comes packed with resources to maximise your learning and exam success
Exam Preparation Materials
Practice Test Questions (200+)
Certificate of Completion
Post-Training Support (30 days)
Session Recording Access
Free Rescheduling (7+ days notice)
Career Outcomes
of JSE-40-01 Exam certified professionals report career advancement within 6 months
Salary Impact
Average salary increase reported after obtaining the JSE-40-01 Exam certification
*Source: Glassdoor / LinkedIn 2025
Job Roles
- Frontend Developer
- React Developer
- TypeScript Engineer
- Full Stack Developer
- UI Developer
- Frontend Engineer
Companies Hiring
and 5,000+ organizations worldwide seeking JSE-40-01 Exam certified professionals
Course Student Reviews
Real results from IT professionals who trained with Koenig — rated 4.9/5 from 18,400+ verified reviews.
-
★★★★★
“Passed AZ-104 on first attempt. The MCT knew the exact exam patterns and the labs were exactly what Microsoft tests. Worth every penny.”
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.”
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.”
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.”
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.”
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.”
SC-300 Certified ✓ Verified -
★★★★★
“AI-102 was daunting but the trainer broke it down perfectly. Real Azure OpenAI labs made the difference. Highly recommend.”
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.”
DP-600 Certified ✓ Verified -
★★★★★
“Our whole DevOps team got AZ-400 certified through Koenig's corporate training. Smooth logistics and top-tier MCTs throughout.”
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.”
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.”
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.”
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.”
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.”
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.”
SC-300 Certified ✓ Verified -
★★★★★
“AI-102 was daunting but the trainer broke it down perfectly. Real Azure OpenAI labs made the difference. Highly recommend.”
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.”
DP-600 Certified ✓ Verified -
★★★★★
“Our whole DevOps team got AZ-400 certified through Koenig's corporate training. Smooth logistics and top-tier MCTs throughout.”
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.”
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.”
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.”
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.”
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.”
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.”
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.”
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.”
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.”
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.”
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.”
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.”
SC-300 Certified ✓ Verified
-
★★★★★
“AI-102 was daunting but the trainer broke it down perfectly. Real Azure OpenAI labs made the difference. Highly recommend.”
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.”
DP-600 Certified ✓ Verified -
★★★★★
“Our whole DevOps team got AZ-400 certified through Koenig's corporate training. Smooth logistics and top-tier MCTs throughout.”
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.”
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.”
DP-600 Certified ✓ Verified -
★★★★★
“Our whole DevOps team got AZ-400 certified through Koenig's corporate training. Smooth logistics and top-tier MCTs throughout.”
AZ-400 Team Training ✓ Verified
Frequently Asked Questions
Everything you need to know about the JSE-40-01 Exam training course
Is the certification exam included in the React with TypeScript course fee, and what is the exam cost if separate?
What training formats are available for the React with TypeScript course, and does Koenig offer Guaranteed-to-Run scheduling?
How long is lab access provided, and what type of environment is used for hands-on practice in the React with TypeScript course?
What is Koenig's rescheduling and cancellation policy for the React with TypeScript course?
What is the format, number of questions, passing score, and time limit for the React with TypeScript certification exam?
How long is the React with TypeScript certification valid, and what is the renewal process and cost?
What post-training support does Koenig provide after completing the React with TypeScript course?
What are the prerequisites or prior experience needed before enrolling in the React with TypeScript course?
What is the average salary impact for developers who complete the React with TypeScript certification?
How does Koenig's instructor-led React with TypeScript training compare to self-study options in terms of outcomes and support?
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Learn more about JSE-40-01 Exam before you enroll
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