Thorough comparison of the difference between a machine learning engineer (AI engineer) and a data scientist.

2024.05.16

  • Industry Information
機械学習エンジニア(AIエンジニア)とデータサイエンティストの違いを徹底比較

The professions of machine learning engineer (AI engineer) and data scientist are gaining attention as AI technology and data science develop and spread. These two professions often get confused because they have several things in common.

In this article, we will introduce the differences and similarities between machine learning engineers and data scientists. We also introduce the characteristics of people who are suited for each type of job, so you can use this as a reference when you want to change jobs to a field that suits you best.

What is a machine learning engineer (AI engineer)?


機械学習エンジニア(AIエンジニア)とは?

Machine Learning Engineers are software engineers specializing in AI development. They work on developing applications and systems using machine learning and deep learning.

The scope of work includes the development and improvement of machine learning algorithms, data preprocessing, and model evaluation. It is not uncommon for engineers to be responsible not only for development work such as design and programming, but also for overall project management.

The importance and demand for machine learning engineers will continue to grow as the field of AI continues to evolve on a daily basis.

データサイエンティストとは?

Data scientists analyze big data to provide data that can be used to develop new products and services. Data analysis is the main focus, but other processes such as setting analysis goals, data processing, modeling, and effectiveness verification are also involved, and are reflected in the development of products and services and innovation of business processes.

The data scientist is also responsible for building an environment, such as SAS, for analyzing big data. In performing their duties, data scientists will utilize skills in data analysis, statistics, programming, and machine learning. They also need to have knowledge of business structures and markets.

Because the position supports data-driven decision making, it can be used in a wide range of fields outside of the IT industry, including manufacturing and service industries.

Please refer to the following article for more information about data scientists.

Related article: What is a Data Scientist? Main job description and how to become a data scientist

機械学習エンジニア(AIエンジニア)とデータサイエンティストの違い

 

 Machine Learning Engineer
(AI Engineer)
Data Scientist
Role requiredDevelop and optimize AI systemsUtilize data to support business
Job Description・Design, development, implementation, and verification of machine learning and AI algorithms
・Collect and process data for machine learning
・Construction of environment to run machine learning models
・Research and investigation of the latest technologies
・Collecting necessary data
・Data analysis for hypothesis formulation and validation
・Data preprocessing
・Data analysis according to objectives
・Reporting of analysis results
・Establishment of analytical environment
Average annual salary (*)Approx. 5,350,000-5,980,000 yenApproximately 5,580,000 to 6,710,000 yen
Required Skills・Python
・Linux
・Machine learning libraries and workframes
・Knowledge of Jupyter Notebook and Anaconda
・Knowledge of databases
・Knowledge of cloud computing
・Knowledge of statistics and mathematics
・Knowledge of big data
・Knowledge of databases
・Programming knowledge with a focus on Python
・Knowledge of security and IT in general
・Data collection, analysis and analysis skills
・Insight and thinking skills
・Communication skills

*As of May 8, 2024

Although machine learning engineers and data scientists are considered similar, minor differences exist. Here is a comparison of the differences between both types of jobs.

Differences in the roles required

 

Job TitleRole required
Machine learning engineer (AI engineer)Development and optimization of AI systems
Data ScientistLeveraging data to support business

The role required of a machine learning engineer is to design, develop, and optimize AI systems. For example, they are responsible for building product recommendation systems based on customer purchase history.

On the other hand, the role of a data scientist is to support decision-making in business, including product and service development, management, and strategy. They provide information and insights that lead to decision-making by analyzing big data. For example, they analyze and provide customer purchase histories and use this information to build marketing strategies.

Differences in Job Descriptions

 

Job TitleJob Description
Machine learning engineer (AI engineer)・Design, development, implementation, and verification of machine learning and AI algorithms
・Collect and process data for machine learning
・Construction of environment to run machine learning models
・Research and investigation of the latest technologies
Data Scientist・Collecting necessary data
・Data analysis for hypothesis formulation and validation
・Data preprocessing
・Data analysis according to objectives
・Reporting of analysis results
・Establishment of analytical environment

Machine learning engineers are involved in the design, development, implementation, and verification of machine learning and AI algorithms. Their main task is to develop and build systems and applications such as facial recognition, image diagnostics, and automated driving. Other important tasks include collecting and processing data needed for machine learning, building environments to run machine learning models, and conducting research and surveys to reflect the latest technologies.

A data scientist's main job is to analyze information needed for decision-making in business, and to consider the results and compile them into reports. If necessary, they may also collect data to be analyzed, formulate hypotheses, and conduct data analysis to test them. They also perform data preprocessing, such as removing irrelevant data and matching formats, and creating an environment for analysis so that appropriate data analysis can be conducted according to the objectives.

Average Annual Salary Difference

 

Job TitleAverage annual salary (*)
Machine learning engineer (AI engineer)Approx. 5,350,000-5,980,000 yen
Data ScientistApprox. 5.58-6.71 million yen

*As of May 8, 2024

Referring to the Ministry of Health, Labor and Welfare's "Occupational Information Providing Site" and "Job Box Salary Navi," the average annual salary for machine learning engineers is approximately 5.35-5.98 million yen. Data scientists, on the other hand, can expect to earn approximately 5.58-6.71 million yen.

The average annual salary tends to be higher for data scientists. In addition, a comparison of the effective ratio of job offers at Hello Work in fiscal year 2023 shows that the ratio for machine learning engineers was 0.99 times, while that for data scientists was 2.77 times. Many companies are looking for data scientists, and their high market value is reflected in their annual salaries.

Reference: Occupational Information Providing Website (Japanese O-NET) AI Engineer
Reference: Job Box Salary Navigator Annual salary, hourly wage, and salary for AI engineer jobs
See: Occupation Information Providing Website (Japanese O-NET) Data Scientist
See: Job Box Salary Navigator Annual salary, hourly wage, and salary for Data Scientist job.

Different Skills Required

 

Job TitleRequired Skills
Machine learning engineer (AI engineer)・Python
・Linux
・Machine learning libraries and workframes
・Knowledge of Jupyter Notebook and Anaconda
・Knowledge of databases
・Knowledge of cloud computing
Data Scientist・Knowledge of statistics and mathematics
・Knowledge of big data
・Knowledge of databases
・Programming knowledge with a focus on Python
・Knowledge of security and IT in general
・Data collection, analysis and analysis skills
・Insight and thinking skills
・Communication skills

Machine learning engineers are required to have expertise and skills in algorithm development and implementation. Specifically, the programming language Python, the operating system Linux, and machine learning libraries and frameworks. Skills in Jupyter Notebook and Anaconda are also required to build development environments. Other requirements include knowledge of databases, as machine learning deals with vast amounts of data, and knowledge of the cloud for efficient use of machine learning.

Data scientists need skills in data collection, analysis, and analysis. They also require knowledge of mathematics and statistics, as they may utilize AI and machine learning. Other skills such as big data, database, programming, general IT skills, and communication skills are also required for this position. The insight and thinking skills required to solve business problems are also essential.

Please refer to the following article for an explanation of the skills required of data scientists.

Related article: A thorough explanation of the skills required of a data scientist! Also introduces useful qualifications.

What do machine learning engineers (AI engineers) and data scientists have in common?


機械学習エンジニア(AIエンジニア)とデータサイエンティストの共通点は?

Above we compared the differences between machine learning engineers and data scientists, but similarities do exist. Let us now look at the similarities between the two.

Fields with promising prospects

Both fields have a lot in common in that they are both promising. Digital transformation (DX) is considered essential for maintaining and strengthening corporate competitiveness. In promoting such DX, human resources with specialized technologies and skills such as AI and data science are in demand.

According to the Ministry of Health, Labor and Welfare's "2023 White Paper on Information and Communications," the AI system market reached 388,367 million yen in 2022 and is expected to grow to approximately 1.1 trillion yen by 2027. However, there is an overall shortage of digital talent, with only 21.2% of companies having a small percentage of AI and data analysis specialists. Therefore, machine learning engineers and data scientists are in high demand, and their need is expected to increase in the future market.

The "Fourth Industrial Revolution Skill Acquisition Course Certification System" is in effect.

The Fourth Industrial Revolution Skill Acquisition Certification System is an accreditation system for education and training courses for working people who aim to develop their careers in highly promising fields centered on IT and data. Accreditation is granted by the Minister of Economy, Trade and Industry.

Courses that have received this accreditation enable students to acquire advanced and cutting-edge skills in AI, data science, cloud computing, IoT, and other fields. Therefore, machine learning engineers and data scientists also share the same target of the Fourth Industrial Revolution Skill Acquisition Course Accreditation System. If you acquire expertise in a course recognized by the Minister of Economy, Trade and Industry, you may have an advantage in changing jobs in the fields of AI and data science.

Easy to achieve a flexible work style

Machine learning engineers and data scientists have in common that many of their jobs allow them to work from anywhere and at any time, as long as the environment is suitable. For this reason, full-remote and freelance work styles are becoming more prevalent.

If you want to realize a free way of working, it is a good idea to change jobs to a company that promotes remote work. Another option is to become a freelancer and work independently after gaining experience at a company.

Check whether you are a machine learning engineer (AI engineer) or a data scientist.


機械学習エンジニア(AIエンジニア)とデータサイエンティストのどちらに向いているかをチェック

Machine learning engineers and data scientists are both highly specialized jobs. Since each person may or may not be suited for the job, choose the job title that is right for you. Finally, here are some characteristics of people who are suited for both types of jobs.

Characteristics of People Suitable for Machine Learning Engineer (AI Engineer)

The main characteristics of a person who is suited to be a machine learning engineer are as follows
 

  • Strong interest in AI
  • Enjoys learning new technologies
  • Excellent logical thinking and problem solving skills
  • Have flexible thinking and creativity

If you have a strong interest in AI technology, a machine learning engineer is a good choice. Because it deals with advanced technologies such as machine learning and deep learning, it is also suitable for those who like to constantly learn new technologies.

In addition, AI development requires logic, and when problems arise, you are required to track down the causes and solve them. Therefore, this job is also suitable for people with strong theoretical thinking and problem-solving skills. In addition, AI development sometimes requires taking on challenges that have never been taken on before, so people with flexible thinking and creativity will be valued by companies.

Characteristics of Suitable Data Scientists

The characteristics of a suitable candidate for a data scientist are as follows
 

  • Interested in data analysis
  • Interested in solving business problems
  • Willing to learn a wide range of skills, including statistics, mathematics, and programming
  • Flexible in thinking
  • Are confident in their communication skills

The main focus is on data analysis, so if you are interested in the field of data analysis, a data scientist is a good choice. The job is also suitable for those who are interested in solving business-related issues, as the job contributes to solving business problems through the use of data.

Data scientists are required to have a wide range of knowledge and skills, including statistics, mathematics, programming, and machine learning. Therefore, those who are willing to learn new knowledge and skills are also recommended. They are also suited to people with flexible thinking skills, as they may analyze data from multiple perspectives.

You will also have the opportunity to work with people from various positions to carry out projects. Those who have good communication skills and are good at understanding what others are saying and conveying it in an easy-to-understand manner are also suited for this position.

Change your career to a field you are suited to!


自分に向いている分野へ転職しよう!

Machine learning engineers and data scientists have some similar elements, such as machine learning and working with data. However, we found that there are minor differences in areas of specialization, roles, and average annual salary.

In addition, the characteristics of those who are suited for each type of job are also slightly different. Therefore, you should clarify which field or job you are interested in and try to move into the field for which you are suited.

United World has many job openings for machine learning engineers and data scientists. Many people may feel uneasy about taking on a challenge in a field they have no experience in. If this is the case, rest assured that our dedicated career advisors will support your job search on a one-on-one basis.

We offer a wide range of advice on job search, career planning, skill development, and other aspects of your job search. If you would like to receive full support in your job search, please click the button below to contact us.

Talk to United World about 
career change.

back to the list

TOP