Signal processing courses can help you learn about Fourier transforms, filtering techniques, and signal modulation. You can build skills in analyzing audio and visual signals, implementing algorithms for noise reduction, and working with time-frequency analysis. Many courses introduce tools like MATLAB and Python libraries, that support simulating signal processing techniques and analyzing real-world data.

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Apache Spark, Apache Hadoop, Scala Programming, Distributed Computing, Big Data, Data Manipulation, Data Processing, Performance Tuning, Data Persistence, SQL, Data Import/Export
Intermediate · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Data Storytelling, Data Analysis Expressions (DAX), Data Presentation, Power BI, Data Ethics, Dashboard Creation, Dashboard, Data Modeling, Data Governance, Extract, Transform, Load, Data Visualization, Business Intelligence, Interactive Data Visualization, Data Visualization Software, Data Analysis, Statistical Analysis, Correlation Analysis, Data Architecture, Data Cleansing, Data Transformation
Beginner · Professional Certificate · 3 - 6 Months

Coursera
Skills you'll gain: Data Preprocessing, Correlation Analysis, Seaborn, Data Cleansing, Data Wrangling, Data Processing, Data Visualization, Plot (Graphics), Statistical Analysis, Data Manipulation, Data Analysis, Exploratory Data Analysis, Data Integration, Statistics, Infectious Diseases, Python Programming
Intermediate · Guided Project · Less Than 2 Hours

CVS Health
Skills you'll gain: De-escalation Techniques, Greeting Customers, Cross Selling, Retail Sales, Customer Service, Selling Techniques, Upselling, Conflict Management, Product Knowledge, Retail Store Operations, Customer Relationship Building, Transaction Processing, Customer Engagement, Professionalism, Friendliness, Empathy, Social Media, Communication, Time Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Fine-tuning, Tensorflow, Keras (Neural Network Library), Model Training, Model Evaluation, Transfer Learning, Natural Language Processing, Data Preprocessing, Deep Learning, Data Pipelines
Intermediate · Guided Project · Less Than 2 Hours

University of Colorado Boulder
Skills you'll gain: Real-Time Operating Systems, Systems Architecture, Software Architecture, Embedded Software, Software Design, System Design and Implementation, Embedded Systems, Performance Tuning, Systems Analysis, Electronic Hardware, Hardware Design, Electronic Systems, Systems Design, Hardware Architecture, Electrical and Computer Engineering, Requirements Analysis, System Programming, Reliability, Unix, Service Level
Build toward a degree
Intermediate · Specialization · 3 - 6 Months

Columbia University
Skills you'll gain: Portfolio Management, Investment Management, Portfolio Risk, Asset Management, Investments, Risk Modeling, Estimation, Market Liquidity, Risk Management, Financial Market, Financial Trading, Model Optimization, Equities, Securities (Finance), Statistical Methods, Risk Analysis, Transaction Processing, Securities Trading, Market Dynamics, Sampling (Statistics)
Intermediate · Course · 1 - 3 Months

Universitat Autònoma de Barcelona
Skills you'll gain: Data Processing, Big Data, Data Infrastructure, Data Storage Technologies, Apache Hadoop, Analytics, Data Analysis, Data-Driven Decision-Making, Data Management, Economics, Policy, and Social Studies, Data Governance, Social Impact
Beginner · Course · 1 - 3 Months

Duke University
Skills you'll gain: Loans, Lending and Underwriting, FinTech, Key Management, Cryptography, Cryptographic Protocols, Digital Assets, Market Liquidity, Financial Trading, Transaction Processing, Public Key Infrastructure, Supply Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cyber Threat Intelligence, Security Information and Event Management (SIEM), AI Security, Threat Modeling, Generative AI, Threat Detection, Cybersecurity, Incident Response, Malware Protection, Prompt Engineering, Exploitation techniques, Anomaly Detection, Large Language Modeling, Vulnerability Management, Incident Management
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: PySpark, Matplotlib, Apache Spark, Big Data, Data Processing, Distributed Computing, Data Management, Data Visualization, Data Presentation, Data Analysis, Data Manipulation, Data Cleansing, Query Languages, Python Programming
Intermediate · Guided Project · Less Than 2 Hours

LearnQuest
Skills you'll gain: Artificial Intelligence and Machine Learning (AI/ML), Model Training, Model Deployment, Microsoft Azure, Artificial Intelligence, Applied Machine Learning, Python Programming, Machine Learning Methods, Machine Learning, Machine Learning Algorithms, Data Science, Image Analysis, Computer Vision, Process Driven Development, Natural Language Processing, Application Programming Interface (API)
Advanced · Course · 1 - 3 Months