Signals and systems courses can help you learn about signal representation, system stability, frequency response, and filtering techniques. You can build skills in analyzing linear time-invariant systems, applying the Fourier and Laplace transforms, and designing digital filters. Many courses introduce tools such as MATLAB and Python, which are commonly used for simulations and real-time signal processing applications, allowing you to implement theoretical concepts in practical scenarios.

Duke University
Skills you'll gain: Molecular Biology, Biology, Biostatistics, Biotechnology, Environmental Science, Scientific Methods, Mathematical Modeling
Mixed · Course · 1 - 3 Months

Skills you'll gain: Medical Records, Medical Office Procedures, Health Information Management, Patient Registration, Care Coordination, Patient-centered Care, Patient Flow, Medical Billing, Emergency Response, Patient Communication, Health Care Administration, Healthcare Industry Knowledge
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Dataflow, Apache Kafka, Data Pipelines, Google Cloud Platform, Extract, Transform, Load, Real Time Data, Big Data, Data Processing, Query Languages, Serverless Computing, Scalability
Intermediate · Course · 1 - 3 Months

Columbia University
Skills you'll gain: Portfolio Management, Derivatives, Financial Market, Securities (Finance), Investment Management, Financial Systems, Asset Management, Credit Risk, Mortgage Loans, Mathematical Modeling, Applied Mathematics, Financial Trading, Financial Modeling, Risk Modeling, Financial Services, Securities Trading, Regression Analysis, Market Liquidity, Capital Markets, Actuarial Science
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Restful API, Flask (Web Framework), Application Deployment, Web Applications, Python Programming, IBM Cloud, Server Side, Artificial Intelligence, Code Review, Programming Principles, Development Environment, Unit Testing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Product Testing, Personal Care, Chemistry, Microbiology, Biology, Materials science, Sustainability Standards, Product Development, Regulatory Compliance, Consumer Behaviour
Beginner · Course · 1 - 3 Months

Skills you'll gain: LangChain, Tool Calling, LangGraph, LLM Application, Agentic systems, Generative AI Agents, Prompt Patterns, Responsible AI, Artificial Intelligence and Machine Learning (AI/ML), Generative AI, Application Design, Prompt Engineering, Large Language Modeling, Software Design Patterns, Software Development, Python Programming, Application Development, Data Science, Data Validation
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Dashboard, Web Scraping, SQL, Descriptive Statistics, Jupyter, Statistical Analysis, Data Analysis, Probability Distribution, Statistics, Data Visualization, Data Presentation, Statistical Methods, Statistical Hypothesis Testing, Relational Databases, Stored Procedure, Data Import/Export, Data Science, Programming Principles, Computer Programming Tools, Python Programming
Build toward a degree
Beginner · Specialization · 3 - 6 Months

Columbia University
Skills you'll gain: Construction Estimating, Cost Estimation, Punch Work, Bidding, Cost Control, Project Closure, Lean Methodologies, Project Estimation, Cash Flow Forecasting, Request For Quotation (RFQ), Earned Value Management, Procurement, Request for Proposal, Change Orders, Building Information Modeling
Beginner · Course · 3 - 6 Months

Skills you'll gain: Oil and Gas, Hazard Analysis, Safety Standards, Environmental Resource Management, Energy and Utilities, Environmental Regulations, Petroleum Industry, Environment Health And Safety, Environmental Engineering, Plant Operations and Management, Waste Minimization, Chemical Engineering, Risk Analysis, Failure Mode And Effects Analysis, Electric Power Systems, Sustainable Technologies, Process Control, Process Engineering, Equipment Design
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Excel Macros, Microsoft Excel, Data Analysis Expressions (DAX), Excel Formulas, Visual Basic (Programming Language), Productivity Software, Data Transformation, Debugging, Spreadsheet Software, Data Cleansing, Automation, Strategic Decision-Making, Programming Principles
Beginner · Course · 1 - 4 Weeks

California Institute of the Arts
Skills you'll gain: Design Reviews, Design, Graphic Design, Design Elements And Principles, Visual Design, Peer Review, Typography, Creative Design
Beginner · Course · 1 - 3 Months