1. SQL - 10 12. Scrum - 10 23. C# - 9 34. Java - 9 45. TypeScript - 9 56. REST - 9 67. React - 9 78. Git - 9 89. HTML - 8 910. MongoDB - 8 1011. C++ - 8 1112. CSS - 8 1213. Redux - 8 1314. PaaS - 8 1415. Docker - 8 1516. GraphQL - 8 1617. MapReduce - 8 1718. JavaScript - 7 1819. ETL - 7 1920. Python - 7 2021. SOAP - 6 2122. OOP - 6 2223. Kotlin - 5 2324. Tensorflow - 5 2425. Kubernetes - 5 2526. Clojure - 5 2627. Angular - 5 2728. Flutter - 5 2829. Linux - 5 2930. Scala - 5 3031. Swift - 5 3132. Go - 5 3233. Haskell - 5 3334. Android - 5 3435. ITIL - 4 3536. Perl - 4 3637. JIRA - 4 3738. Hyper-V - 3 3839. MS Exchange - 3 3940. IIS - 3 4041. VMware - 3 4142. O365 - 3 4243. SCCM - 3 4344. Active Directory - 3 4445. OSCP - 1 4546. Erlang - 1 4647. Jenkins - 1 4748. F# - 1 4849. Gitlab - 1 4950. Kanban - 1 50