Data Analyst

Roles and responsibilities

A Data Analyst is responsible for collecting, processing, analyzing, and interpreting large datasets to help organizations make informed decisions. The role is pivotal in turning raw data into actionable insights, often focusing on identifying patterns, trends, and key metrics that support business strategies, operations, and growth. Data Analysts use a combination of statistical methods, data visualization techniques, and analytical tools to process data and communicate their findings effectively.

Here’s a detailed breakdown of the key skills, responsibilities, and qualifications typically required for a Data Analyst:

Key Skills for a Data Analyst

1. Data Collection and Cleaning:

   • Data Extraction: Extracting data from various sources, such as databases, spreadsheets, APIs, and web sing.
   • Data Cleaning: Removing errors, duplicates, and inconsistencies in the data to ensure high-quality, usable datasets.

2. Statistical and Analytical Skills:

   • Statistical Analysis: Proficiency in performing statistical analysis to identify patterns, correlations, and trends in data.
   • Data Modeling: Creating models to predict future trends and behaviors using historical data.

3. SQL and Database Management:

   • SQL (Structured Query Language): Proficiency in querying relational databases (e.g., MySQL, PostgreSQL, SQL Server) to extract and manipulate data.
   • Database Management: Understanding how databases work and being able to manage, organize, and optimize them for efficient querying.

4. Data Visualization:

   • Data Visualization Tools: Creating clear and effective visual representations of data using tools such as Tableau, Power BI, or Google Data Studio.
   • Charts and Graphs: Designing charts, graphs, and dashboards to present data insights in a visually appealing and easy-to-understand manner.

5. Excel and Spreadsheet Management:

   • Expertise in using Excel for data analysis, including pivot tables, VLOOKUP, macros, and advanced formulas.
   • Handling large datasets and performing complex calculations in Excel efficiently.

6. Programming Skills:

   • Python or R: Knowledge of programming languages such as Python or R for performing data manipulation, statistical analysis, and automation of data processing tasks.
   • Pandas, NumPy (Python), dplyr (R): Libraries for data analysis in Python and R, used for data manipulation, aggregation, and statistical analysis.

7. Business Acumen:

   • Ability to understand business processes and translate data insights into actionable recommendations that align with business goals.
   • Knowledge of key performance indicators (KPIs) and metrics relevant to the industry or department.

8. Problem-Solving and Critical Thinking:

   • Ability to approach data analysis challenges with a logical, analytical mindset to uncover insights.
   • Developing solutions to address specific business problems based on data findings.

9. Communication and Presentation Skills:

   • Strong written and verbal communication skills to present data findings to non-technical stakeholders.
   • Ability to explain complex data insights in simple, understandable terms for decision-makers.

Soft Skills

1. Attention to Detail:

   • Ensuring accuracy in data analysis, especially when dealing with large datasets, to avoid errors and ensure reliable insights.
   • Thoroughly checking data for inconsistencies, missing values, and outliers.

2. Time Management:

   • Managing multiple tasks and deadlines effectively, balancing the need for thorough analysis with the need for timely reporting.
   • Prioritizing tasks based on the business needs and urgency of data requests.

3. Collaboration and Teamwork:

   • Working closely with other teams, such as marketing, finance, product, and operations, to gather data and provide insights.
   • Collaborating with senior analysts or managers to refine analysis techniques or approaches.

4. Curiosity and Continuous Learning:

   • A natural curiosity to understand how data can drive better decision-making and improve processes.
   • Staying updated with the latest data analysis techniques, tools, and industry trends to continuously improve your skillset.

Desired candidate profile

• Search: Experiment with text ads, bidding, and campaign structures on Google, Bing, Baidu, Naver, and other search engines. Adapt to new product features and roll out changes from successful tests
• Display: Test, analyze, and optimize campaigns on Facebook, Twitter, Instagram, and others
• Modeling: Analyze the vast amounts of data generated by experiments, develop models we can use for optimization, and build dashboards for account managers
  

What you’ll Need to Succeed:

• Bachelor’s Degree or higher from top university in a quantitative subject (computer science, mathematics, engineering, statistics or science)
• Ability to communicate fluently in English
• Exposure to one or more data analysis packages or databases, e.g., SAS, R, SPSS, Python, VBA, SQL, Tableau
• Good numerical reasoning skills
• Proficiency in Excel
• Intellectual curiosity and analytical skills