Challenging work that requires a lot of analytical thinking can come in many forms across various industries. Here are some examples:

1. **Data Scientist**: Data scientists analyze and interpret complex data to help companies make informed decisions. They use statistical analysis, machine learning, and predictive modeling to uncover insights from vast datasets.

2. **Software Developer/Engineer**: Developing software involves problem-solving, understanding user needs, and designing efficient algorithms. It often requires breaking down complex problems into smaller, manageable parts.

3. **Consultant (e.g., Management, IT)**: Consultants analyze business processes, identify inefficiencies, and recommend solutions to improve operations. They must understand complex systems and provide strategic advice.

4. **Research Scientist**: Whether in academia or industry, research scientists design experiments, collect and analyze data, and draw conclusions based on their findings. This often involves advanced statistical methods and theoretical models.

5. **Financial Analyst**: Financial analysts assess investment opportunities, evaluate financial data, and make recommendations based on market trends and economic conditions. They need strong quantitative skills and an ability to interpret complex financial information.

6. **Medical Researcher**: Medical researchers study diseases, develop new treatments, and analyze clinical trial results. They must understand complex biological processes and statistical methods for evaluating treatment efficacy.

7. **Legal Analyst/Paralegal**: Legal professionals analyze case law, statutes, and legal documents to support attorneys in preparing for trials, hearings, and other legal proceedings. They must have excellent attention to detail and critical thinking skills.

8. **Operations Research Analyst**: These professionals use advanced mathematical and analytical techniques to help organizations solve problems and make better decisions. They might work on logistics, supply chain management, or resource allocation.

9. **Cryptographer**: Cryptographers design and analyze encryption systems to protect data. They need a deep understanding of mathematics and computer science to create secure communication channels.

10. **Forensic Analyst**: Forensic analysts examine evidence from crime scenes, analyze digital data, and provide expert testimony in court. They use scientific methods and analytical tools to reconstruct events and identify suspects.

Each of these roles requires a high degree of analytical thinking, problem-solving skills, and the ability to handle complex information and data.