Agent Ambo · Upskill
Java Developer course with certificate
Answer deep core Java questions and explain how your Spring services work end to end.
AmboSyllabus
- Module 1Core Java and OOPClasses, interfaces and abstract classes · equals, hashCode and immutability · Exceptions
- Module 2CollectionsHashMap internals · List, Set and Map choices · Concurrent collections
- Module 3Concurrency and the JVMThreads and ExecutorService · synchronized, locks and volatile · Memory model and garbage collection
- Module 4Modern JavaStreams and lambdas · Optional and functional interfaces · Records
- Module 5Spring Boot and microservicesDependency injection and beans · REST, JPA and transactions · Service communication and resilience
Java Developer certification
TickBig Certified Java Developer. Three camera-proctored rounds that unlock one after another: an objective test across the syllabus, hands-on tasks and a voice interview with Ambo. Pass all three within 14 days; the certificate is valid for 12 months and has a public link recruiters can check.
Example hands-on task: Build and fix a small Spring Boot service whose endpoint fails a hidden test, then explain the bug.
Pick your pace
- Round 1Crash course: 10 days, every must-know topic
- Round 2Interview perspective: 14 days, organised the way you’ll be tested
- Round 3Depth learning: 20 days, the full picture with more practice
Revise and rehearse
How Ambo builds your Java Developer course
- 1Ambo reads your resumeYour skills, projects, years and the role you want next.
- 2Then where you’re interviewingAnd how interviewers there question people like you.
- 3It maps every topic they could askMust-know first, your own projects included, built into short daily lessons.
- 4You practise, then get certifiedInterview Q&A after every lesson, then three proctored rounds ending in a voice interview with Ambo.
Questions, answered.
What will I learn in the Java Developer course?
Five modules: Core Java and OOP, Collections, Concurrency and the JVM, Modern Java and Spring Boot and microservices. Ambo adjusts the depth to your resume, so you spend more time on your gaps.
Is the Java Developer certificate verifiable?
Yes. Every TickBig certificate has a public link showing your scores for each round and the camera verification.
How is this different from a list of interview questions?
A list is the same for everyone. Ambo builds your course from your resume, your target role and where you're interviewing, then writes every lesson from the interviewer's point of view: what they'll ask, a strong answer, and the follow-up they'll use to test you.
What is the certification test?
Three camera-proctored rounds that unlock one after another: an objective round, a hands-on round (coding or practical tasks for your role) and a voice interview with Ambo, who asks live follow-ups on your answers. Pass all three within 14 days to become TickBig Certified for 12 months.
Get TickBig Certified as a Java Developer.
A course built from your resume, then three proctored rounds.