Skills you'll gain: File Systems, Operating Systems, OS Process Management, C (Programming Language), System Programming, Unix, Virtualization, Data Integrity, Debugging, File I/O, Linux, Performance Tuning, Distributed Computing, Data Storage, Command-Line Interface, Virtual Machines, Data Security, Computer Hardware, Scalability, Data Structures
Beginner · Specialization · 3 - 6 Months

EDUCBA
Skills you'll gain: C (Programming Language), Embedded Systems, Embedded Software, Debugging, System Programming, Hardware Architecture, Microarchitecture, Computer Architecture, Data Structures, Peripheral Devices
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: System Programming, Embedded Software, Linux, Embedded Systems, Debugging, Operating Systems, Peripheral Devices, Build Tools, Shell Script, File Systems, USB, Development Environment, C (Programming Language)
Advanced · Course · 1 - 4 Weeks

Princeton University
Skills you'll gain: Programming Principles, Computer Programming, Object Oriented Programming (OOP), Performance Tuning, Data Structures, Java Programming, Java, Program Development, File I/O, Computational Thinking, Computer Science, Algorithms, Animations, Debugging
Beginner · Course · 1 - 3 Months

Skills you'll gain: Bash (Scripting Language), Shell Script, Linux Commands, Unix Shell, Unix Commands, Linux Administration, Linux, Scripting, Scripting Languages, File Management, Command-Line Interface, Debugging, System Configuration, User Interface (UI), IT Automation, Interactive Design, File I/O, Programming Principles
Beginner · Specialization · 1 - 3 Months
University of California, Santa Cruz
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Programming Principles, Data Modeling, Data Integrity, Application Development, Data Maintenance, Debugging
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Persistence, File I/O, C (Programming Language), Debugging, Computational Thinking, Programming Principles, Program Development, Application Design, Command-Line Interface, Algorithms
Mixed · Course · 1 - 4 Weeks

Simplilearn
Skills you'll gain: Data Structures, C (Programming Language), Programming Principles, Data Management, Algorithms, Computer Programming, File I/O
Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Unified Modeling Language, File I/O, Visual Basic (Programming Language), Database Management, System Software, Databases, Relational Databases, Algorithms, Computer Architecture, Network Security, Computer Hardware, SQL, Computer Science, Development Environment, Data Structures, Object Oriented Programming (OOP), Object Oriented Design, Computer Programming, Microsoft Development Tools, Programming Principles
Beginner · Specialization · 3 - 6 Months

University of Michigan
Skills you'll gain: C (Programming Language), Programming Principles, C++ (Programming Language), Algorithms, Data Structures, Other Programming Languages, System Programming
Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: SQL, SAS (Software), Database Management, Query Languages, Case Studies, Data Access, Database Management Systems, Program Development, Data Presentation, Scripting, Perl (Programming Language), Data Processing, Automation, Data Integration, Statistical Programming, Stored Procedure, Data Manipulation, Data Transformation, Debugging, Data Analysis
Build toward a degree
Intermediate · Professional Certificate · 3 - 6 Months