API & Microservices
The Open Source API & Microservices course equips software developers, DevOps engineers, and cloud architects with practical skills to design, secure, and scale modern distributed systems, solving the critical industry challenge of monolithic legacy modernization. With the global cloud microservices market projected to reach $11.36 billion by 2033, this training delivers hands-on expertise in RESTful APIs, containerization, and service communication essential for high-demand cloud-native roles.
This course prepares learners for the Microservice Professional Certification, leveraging Koenig’s Guaranteed-to-Run training schedule and 30-day lab access for real-world practice. Graduates gain the proven ability to build resilient, scalable architectures, positioning them to lead digital transformation initiatives in enterprise cloud environments.
Training Formats & Pricing
100% Happiness Guarantee · Free Rescheduling · Secure Payment
Course Overview
The Open Source API & Microservices course is designed for developers, software architects, and DevOps engineers seeking expertise in building scalable, resilient distributed systems. This comprehensive training prepares candidates for the Service API Specialist Certification (SAS-C) and aligns with industry demand, as 83% of enterprises now adopt microservices to accelerate digital transformation. Targeted at professionals working in cloud-native environments, the course supports key roles such as API Developer, Microservices Engineer, and Cloud-Native Architect. With the API economy expanding rapidly—projected to exceed $1.2 trillion by 2027—this course equips learners with in-demand skills recognized across fintech, e-commerce, and SaaS industries.
Participants engage with a robust suite of open-source and cloud-agnostic tools, including Kong Gateway, Prometheus, Postman, Dapr (Distributed Application Runtime), Tyk, and OpenAPI (Swagger). The hands-on lab environment, delivered via a cloud-based sandbox, enables students to build and secure RESTful APIs, implement service mesh patterns, and configure API gateways with rate limiting and authentication. A core project involves designing a full microservices-based e-commerce backend, where learners containerize services using Docker, orchestrate them with Kubernetes, and expose APIs through Kong with comprehensive observability using Prometheus and Grafana. These labs mirror real-world scenarios such as zero-downtime deployments, API versioning strategies, and fault-tolerant service communication.
By completing the Open Source API & Microservices course, learners are fully prepared for the globally recognized Service API Specialist Certification, which validates expertise in API design, security, and lifecycle management. Certified professionals report an average salary increase, with mid-level API developers earning $135,000 and senior roles reaching $183,700 in major tech hubs like San Francisco. Koenig Solutions enhances this learning journey with Guaranteed-to-Run batches, official courseware, and optional 1-on-1 mentoring, ensuring personalized support. Graduates emerge ready to lead API-first initiatives, drive cloud-native adoption, and advance into high-impact roles such as Lead API Architect or Director of Developer Experience in today’s most innovative technology organizations.
What You'll Learn
Prerequisites
- Proficiency in Java 17+ programming and core Object-Oriented Programming (OOP) principles, essential for mastering API & Microservices development with Open Source tools
- Hands-on experience with build automation tools like Maven or Gradle to streamline project workflows
- Solid understanding of REST API design, including HTTP methods, status codes, and JSON formatting, crucial for building scalable microservices
- Familiarity with SQL databases such as PostgreSQL and NoSQL options like MongoDB to manage diverse data storage needs
- Basic skills in containerization with Docker to deploy and test microservices efficiently
- Practical knowledge of Git version control and command line operations to collaborate effectively in API & Microservices projects
Certification Exam
Everything you need to know about the API & Microservices certification exam
Course Curriculum
Structured learning with hands-on labs and real-world scenarios
1
Day 1– Mastering API & Microservices Fundamentals
2
Day 2– Advanced RESTful API Development with Spring
3
Day 3– Professional API Design and Documentation
4
Day 4– Enterprise API Security and Management
5
Day 5– API Testing, Deployment and DevOps
What's Included in Your Training
Every enrollment comes packed with resources to maximise your learning and exam success
Official Courseware
Hands-On Lab Environment (30 days)
Exam Preparation Materials
Practice Test Questions (200+)
Certificate of Completion
Post-Training Support (30 days)
Session Recording Access
Free Rescheduling (7+ days notice)
Hands-On Lab
Live Lab Sandbox
Real EnvironmentPractice in a real lab environment with full access to the tools and services covered in the course.
30+ Guided Labs
30+Step-by-step lab exercises designed to reinforce each module with practical, hands-on tasks.
Lab Manual Included
Full GuideComprehensive lab guide with detailed instructions, screenshots, and troubleshooting tips.
Post-Training Access
30 Days30 days of extended lab access after your training ends so you can continue practicing.
Career Outcomes
of API & Microservices certified professionals report career advancement within 6 months
Salary Impact
Average salary increase reported after obtaining the API & Microservices certification
*Source: Glassdoor / LinkedIn 2025
Job Roles
- Microservices Developer
- API Engineer
- Backend Software Engineer
- DevOps Engineer
- Software Architect
- Cloud Native Developer
Companies Hiring
and 5,000+ organizations worldwide seeking API & Microservices certified professionals
Course Student Reviews
Real results from IT professionals who trained with Koenig — rated 4.9/5 from 18,400+ verified reviews.
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★★★★★
“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 API & Microservices training course
Is the API & Microservices certification exam included in the course fee, and what is the exam cost?
What training formats are available for the API & Microservices course at Koenig Solutions?
How long is lab access provided, and what type of lab environment is used for the API & Microservices course?
What is Koenig Solutions’ rescheduling and cancellation policy for the API & Microservices course?
What is the format, duration, number of questions, and passing score of the API & Microservices certification exam?
How long is the API & Microservices certification valid, and what is the renewal process and cost?
What post-training support does Koenig provide after completing the API & Microservices course?
Are there any prerequisites or prior experience required to enroll in the API & Microservices course?
What career benefits and salary improvements can one expect after completing the API & Microservices certification?
How does instructor-led training from Koenig compare to self-study for the API & Microservices certification?
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