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Junior,middle,senior?
- 2. DEVELOPER 12 YEARS TRAINER 4 YEARS WRITER 3 BOOKS
- 5. Review experience Review knowledge Review skills Team work Tests Practical tasks Level estimation
- 6. How to estimate technical level quickly and precisely?
- 13. Technical level
- 14. Technical level
- 15. Level Description Novice No programing knowledge Trainee(Intern) No job experience Junior < 1 year of experience Middle 1-3 years Senior 3-5 years Technical lead 5-7 years Companies opinion
- 17. Level Description Novice Trainee(Intern) Needs experience Junior Needs mentoring Middle Able to work without mentoring Senior Able to supervise others Technical lead Able to supervise the team Team work
- 18. Level Description Novice No questions Trainee(Intern) Questions Junior More questions than answers Middle Same number of questions and answers Senior More answers than questions Technical lead More orders than answers and questions Data flow
- 19. Programming
- 20. Level Description Novice Not able to write code Trainee(Intern) Write code that compiles Junior Write code that works Middle Write code that you understand Senior Write code that you like Technical lead Write code that is sample for you Programming
- 21. Creativity Abstract thinking Programming skills Analytical skills Knowledge Fundamentals
- 22. Fundamentals
- 23. Knowledge
- 24. Analytic skills
- 27. Fundamentals
- 28. Ava Rava Java Gava What is popular programming language?
- 29. JDK JPA JCP JVM What is required to run Java application?
- 30. Cross- platform Open-source Performance Objected- oriented What is NOT Java advantage?
- 31. Knowledge
- 32. What is Collections framework? What are interfaces in Collections framework? What are classes in Collections framework? Which type is used to store sequential ordered elements? What is the method to store new element in List? Which collections are thread-safe? What are immutable collections in Java? Knowledge
- 33. What is the difference between ArrayList and LinkedList? What is search complexity in LinkedList(HashMap)? When you prefer TreeMap in favour of HashMap? What is disadvantage of using HashMap? How does HashMap growing affect performance? Which list type would use in you job and why? How would off-heap map work? Analytic skills
- 34. Does Java support inheritance? Does Java support operator overloading? How to sort LinkedHashSet? Deep analytic skills
- 37. Write skills
- 38. Write a method that converts ArrayList to HashSet
- 39. Write a method that converts ArrayList to HashSet
- 40. Write a method that converts ArrayList to HashSet
- 41. Write a method that converts ArrayList to HashSet
- 42. Write a method that converts ArrayList to HashSet
- 43. Write a method that converts ArrayList to HashSet
- 44. Find element in the sorted array
- 45. Read skills
- 46. Outcome of this code
- 47. Outcome of this code
- 48. Review skills
- 49. Concise Readable Self-describing Reusable Testable Modern Flexible Scalable Effective
- 50. Is this class immutable?
- 51. Purpose of this method
- 52. Find a bug
- 54. Refactoring
- 55. Refactoring
- 56. Refactoring
- 57. Refactoring
- 60. Optimization
- 61. Optimization
- 62. Optimization
- 63. Optimization
- 64. What is most suitable collection in Java for LIFO operations? What is best list implementation in Java for multi-threading tasks? What are best practices working with collections? Abstract thinking
- 65. Creativity
- 66. Write all possible approaches to check if string is a number Write all possible ways to generate random string Write all possible ways to iterate over tree(binary tree) Write all possible ways to encrypt string with/without possible decryption Write all possible ways to find all the classes in the current application Write your own most efficient list Creativity
- 70. Level Focus Produces Intern Language basics Expressions Junior Language advanced Functions Middle Frameworks and libraries, software processes Types Senior Software structuring, business communication Components Skill levels
- 71. Q&A • Sergey Morenets, sergey.morenets@gmail.com