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Skills Needed: Required Skills
・Strong knowledge of languages and frameworks such as Node.js, Python, React, TypeScript Go, Scala etc
・Extensive experience web application development
・Strong knowledge of networks and databases
・Strong knowledge of algorithms and data structures
・Experience with git/hg and npm/yarn

Preferred Skills
・Good communication skill (English or Japanese)
・Strong knowledge of algorithms and data structures
・Experience with working at startups
・Strong work initiative

Skills Needed: Minimum Skill/Experience 必須要件
・ BI tool (Tableau, DOMO, etc.) operation / PDCA experience
・ Python and SQL data processing and automation experience
・ Data cleansing, distribution, simple regression and understanding of P value concept and utilization skills
・ Extracted data subset On the other hand, processing skills according to the purpose in IDE etc.

・BIツール（Tableau、DOMOなど）の運用/PDCAの経験
・Python、SQLによるデータ処理、自動化経験
・データクレンジング、分布、単回帰やP値の概念の理解及び活用スキル
・抽出されたデータサブセットに対し、IDE等で目的に応じた処理スキル

Preferred Skill/Experience 歓迎要件
・ Experience in introducing BI tools, experience in introducing BI tools to clients based on analysis / analysis results (technical support)
・ Persons who are interested in fields that our company is in the business field such as medical, sports, products, AI-introduced product sales / retail

・BIツールの導入検討及び、導入経験
・分析結果を元にクライアントへの提案経験（テクニカルサポート）
・医療、スポーツ、プロダクト、AI導入物販/小売など弊社がビジネス領域としている分野い興味のある方

Skills Needed: Minimum Skill/Experience 必須要件
・Strong knowledge of Python
・Experience with ML frameworks such as Scipy/Numpy, Scikit-Learn, Pandas, Tensorflow,
・Keras, Chainer, PyTorch
・Strong knowledge of Computer Science or related quantitative field
・Strong knowledge of machine learning models (linear regression, ensemble methods, boosting, RNN, CNN, GCN, GAN, etc.)
・Ability to implement models from papers
・Demonstrated history of model research and design
・Experience with git/hg

・Pythonの深い理解と豊富な知識
・Scipy/Numpy, Scikit-Learn, Pandas, Tensorflow, Keras, Chainer, PyTorchなどのフレームワークを利用した機械学習における実装経験
・機械学習の理論的背景を理解
・機械学習のモデルの理解（線形回帰, アンサンブル学習, 勾配ブースティング, RNN, CNN, GCN, GAN, YOLOなど）
・論文のモデルを実装する能力 ・自らモデルをデザイン
・研究・実装していく姿勢

Preferred Skill/Experience 歓迎要件
・Good communication skill (English, Japanese)
・Strong knowledge of algorithms and data structures
・Experience with working at startups
・Strong work initiative

・高いコミュニケーションスキル（英語・日本語）
・Git, hgといった開発環境での経験
・アルゴリズムやデータ構造の知識
・スタートアップで働いた経験
・新しい課題や未知の領域に果敢に挑戦した経験

Skills Needed: Minimum Skill/Experience 必須要件
- Strong knowledge of modern (ES6+) JavaScript/HTML5/CSS
- Strong knowledge of frontend frameworks such as React, Vue.js
- Experience with typed JavaScript such as TypeScript, flow and Reason
- Experience with web application design and development
- Experience with git/hg and npm/yarn

- モダンな(ES6+) JavaScript/HTML5/CSSに対する高い知識と経験
- 型付きJavaScript (TypeScript, flow, Reasonなど)の理解
- 興味
- プロダクト/デザイン開発で使用するいずれかの言語
- ツールの経験 (React, Vue.js, TypeScript)
- Webアプリケーションデザイン/開発経験
- git/hg, npm/yarnの使用経験

Preferred Skill/Experience 歓迎要件
- Good communication skill (English, Japanese)
- Strong knowledge of algorithms and data structures
- Experience with working at startups
- Experience with native application development (iOS/Android)
- Strong work initiative

- 高いコミュニケーションスキル（英語・日本語）
- iOS、Android などの ネイティブアプリケーションの開発経験
- ネットワーク
- データベース等の基礎知識
- スタートアップやベンチャーで働いたことがある経験
- 新しい課題や未知の領域に果敢に挑戦した経験

Skills Needed: Minimum Qualifications:
• B.S. or M.S. in Computer Science or equivalent
• Strong ability to develop Android apps using Java or Kotlin with at least 3 years of  experience
• Strong understanding of the latest features and development best practices for the Android platform
• Understanding of Android Architecture Components ie Data Binding, Live data, Navigation, Paging, Room, View Model, Work Manager, Dagger 2
• Hands on tools ie Studio, Intellij, Jenkins, Gradle
• Knowledge of Thirdparty libararies
• A desire to continually improve, suggest idea for organization, teams
• Experience in Agile development

Skills Needed: BASIC QUALIFICATIONS
· Bachelors of Science degree in Computer Science, Engineering, Mathematics or related discipline.
· At least 2 years of experience with machine learning systems.
· At least 2 years of experience building web based production software.
· Hands on development experience in C++, Java, and Python.

PREFERRED QUALIFICATIONS
· Masters or PhD in Computer Science, dealing with natural language processing.
· Experience working with the Lucene search ecosystem.
· Strong Computer Science fundamentals in data structures, algorithm design and complexity analysis.
· Ability to read/write multiple human languages a plus.
· Experience with web-scale data processing.
· Technically deep in the principles of building large-scale machine learning systems.
· Self-directed, flexible, goal oriented and strong sense of ownership.
· Strong verbal and written communications skills; experience presenting complex technical information, succinctly, to technical and non-technical audiences.

Skills Needed: Minimum Qualifications:
• 3+ years' experience with application development
• Hands-on development experience in JAVA
• Experience in development with DBMS like Oracle and MySQL
• Experience with UNIX/Linux

Preferred Qualifications:
• Experience with web application development
• Experience in E-Commerce and FinTech industries
• Experience in connecting with payment services and systems

Skills Needed: REQUIREMENTS
• Technical university degree or equivalent knowledge
• Experience managing a team focused on data science / analytics
• Strong communication and leadership skills
• 5 or more years of analytical work experience related to apps or websites
• 3 or more years’ experience in one or more programming languages used for data analysis (Python, R, etc.)
• Advanced SQL
• Intermediate knowledge of applied statistics (fit regression curves, build predictive models, choose sample sizes, etc.)
• Experience with A/B testing

NICE TO HAVE
• Experience with analysis of digital or mobile user interfaces
• Understanding of machine learning and end-to-end deployment
• Understanding of data engineering tasks (e.g. data warehousing, model deployment, using data workflow tools like Azkaban or Airflow)
• Experience related to marketing / user growth, including 3rd-party APIs and tools

Skills Needed: BASIC QUALIFICATIONS
· At least 3 years of recent operations experience in a large scale production Linux environment
· At least 3 years of scripting and software development experience
· Excellent judgment in high pressure situations
· Able to learn quickly and serve as mentor and coach
· Bachelor's degree in Computer Science or Electrical Engineering or equivalent work experience

PREFERRED QUALIFICATIONS
· Able to design and analyze highly available distributed systems
· Experience with capacity planning and performance measurement
· Experience in designing and implementing scalable solutions for large fleets
· Previous work experience in a large global company
· Previous work experience in operations, system administration, DevOps or SRE
· Previous work experience with AWS

Skills Needed: BASIC QUALIFICATIONS
· Bachelor's degree in Computer Science or related fields
· 8+ years of industry experience
· 4+ years of management experience
· Strong technical passion and depth. OO and System Design skills required.
· Proficiency in a major programming language such as (C++, Java, Python, Perl) and SQL, NOSQL in a Unix based environment.
· Database modelling skill
· Demonstrated success in delivering scalable, distributed, service oriented architecture
· Proven track record to raise the bar, recruit top talents, effectively manage performance and motivate
· Experience directly managing 6-10 software engineers
· Superior presentation and written communication skills in English

PREFERRED QUALIFICATIONS
· Master's degree in Computer Science
· Experience with eCommerce and points or similar loyalty program is beneficial

Skills Needed: Roles and Responsibilities
You will be a problem-solver, with the following responsibilities:
•Analyze user requirements of a blockchain solution
•Design blockchain solutions based on user requirements
•Lead teams/projects from a technical prospective
•Establish the best development practices and ensure they are followed within and across the teams
•Ensure timely delivery of release milestones
•Responsible for delivering blockchain solutions meeting quality benchmarks
•Write, test and improve software modules
•Analyze software modules and improve them to be performant, re-usable and maintainable
•Analyze blockchain solutions and improve them to be reliable and scalable
•Review team members’ submitted code and provide them with improvement ideas
•Work in an agile team environment and collaborate with team members
•Collaborate with other teams, communicate and resolve team interdependencies proactively
•Continually update technical knowledge and skills

Required Experiences/Skills
•Experience of 7+ years, in developing cutting edge technical solutions
•Experience of 2+ years, in developing blockchain solutions
•Experience of 2+ years, in leading teams/projects from a technical prospective
•In-depth knowledge and experience in blockchain development
•Basic knowledge and experience in cloud computing
•Basic knowledge and experience in machine learning
•Being able to translate architecture designs into well structured, tested and documented source code
•Good working knowledge of data structures, algorithms and database technologies
•Hands-on development experience with at least two of the following programming languages:C, C++, C#, Java, Scala, Swift, Go, Clojure, Python, R, Javascript
•In-depth knowledge of Bitcoin and Ethereum protocols and the internals of the transactions
•Experience in developing and deploying smart contracts on the mainnet/testnets and knowledge of how the contract migration works
•In-depth knowledge of at least one of the following permissioned distributed ledger frameworks: Hyperledger Fabric, Corda
•Experience in big data analysis of a blockchain data
•Knowledge of Apache Spark, experience in AWS Athena and/or Azure Databricks
•Knowledge of various kinds of DLTs, not just blockchain
•Knowledge and experience with Git version control tool
•Experience working with teams with agile/lean approaches

Skills Needed: Minimum Qualifications:

• 5+ years of experience in web applications development
• Proficient with Swift
• Experience with iOS frameworks
• Familiarity with RESTful APIs to connect iOS applications to back-end services
• Knowledge of basic web technologies and UI/UX standards
• Proficient understanding of code versioning tools (Git)
• Familiarity with continuous integration

Preferred Qualifications:

• Familiarity with Android development
• Development experience in web-based languages and databases

Skills Needed: Minimum Qualifications:
• 2+ years' experience building native mobile applications or mobile SDKs/libraries (both is ideal)
• Experience with Swift or Kotlin (both is ideal)
• Automation experience, including CI
• Test design and implementation experience
• Experience integrating with backend API services
• An understanding of what should be considered when building and deploying libraries
• Excellent critical thinking, problem solving and communication skills and able to take ownership of tasks
• Ability to pick up new technologies

Preferred Qualifications:
• Experience with Java (Android) or Objective-C (both is ideal)
• Hybrid/JavaScript development with React Native, Cordova or similar
• Interest in mobile software architecture
• Mobile/Web/Hybrid UI development

Skills Needed: Job Qualifications:
• 5+ years of experience in Unix/Linux
• 3+ years of experience in Chef, Docker, Kubernetes
• 3+ years of experience in Perl, Python and advanced scripting languages / technologies
• Proven experience in deploying applications into production environments
• Experience in monitoring tools & Troubleshooting
• Experience in all layers of Networking (Routing, TCP, API, etc.,)
• Experience in analyzing and reporting troubles / issues
• 3+ years of experience in production systems support and/or end user support function.
• Excellent verbal and written communications skills
• Strong ownership mindset of the systems in charge
• Strong team player capable of working in a demanding start-up like environment building the next generation platform

Preferred Knowledge, Skills and Abilities:
• Experience in Java.
• Familiarity with Agile toolkit like JIRA as well as Scrum/Kanban
• Familiarity with CI/CD with utilizing Git/Jenkins/Chef/Ansible etc.
• Familiarity with JUnit, TestNG, Mockito, JMockit, etc.
• Fluid understanding of aggregates, group by's, inner joins, outer joins, etc.
• Experience in Elastic Search, Solr
• Understanding of Quality Assurance methodology including the statistical methodology
• Understanding of ITIL framework
• Understanding of Data Governance frameworks
• Understanding or experience in either of E-Commerce/Advertisement business industry
• Understanding of Data Modeling techniques

Skills Needed: REQUIREMENTS
Required skill/experience
• Advanced skill and experience in more than on programming language
• Understanding on user interface development and ability of proper data or business logic separation from view
• Possible to use Japanese or English as fluent or native speaker.

Preferred skill/experience
• iOS application development experience
• Development experience either at a company or individual level and coding skills for actual service operation
• Implementation skill based on comprehensive understanding on product’s service architecture and its business
• Capability of UI/UX design

Skills Needed: REQUIREMENTS
Required skill/experience
• Advanced experience in more than one programming language
• Understanding of computer science
• Understanding and experience in Natural language processing, machine learning and advanced algorithms
• Understanding and experience in data mining, statistics, model building for big data analysis
• Possible to work in Japan.

Preferred skill/experience
• Practical development experience on AWS
• Practical development experience using Spark, Hadoop
• Ph.D. in Computer Science or related fields
• Publication experience in academic or international conference
• Experience in one’s project being selected and funded by IPA’s young developer support program

Skills Needed: BASIC QUALIFICATIONS
· At least 3 years of recent operations experience in a large scale production Linux environment
· At least 3 years of scripting and software development experience
· Excellent judgment in high pressure situations
· Able to learn quickly and serve as mentor and coach
· Bachelor's degree in Computer Science or Electrical Engineering or equivalent work experience

PREFERRED QUALIFICATIONS
· Able to design and analyze highly available distributed systems
· Experience with capacity planning and performance measurement
· Experience in designing and implementing scalable solutions for large fleets
· Previous work experience in a large global company
· Previous work experience in operations, system administration, DevOps or SRE
· Previous work experience with AWS

Skills Needed: Requirements
· Statistics, Applied Mathematics, Operation Research, Economics or a related quantitative bachelor or master degree.
· At least 4 years of experience with data querying languages (e.g. SQL), scripting languages (e.g. Python), or statistical/mathematical software (e.g. R, Weka, SAS, Matlab) (data extraction, manipulation, statistical analysis and predictive modeling).
· 4+ years of work experience in data analysis, applied statistics or econometrics.
· 1+ years of experience managing teams
· Experience in projects involving cross-functional teams.
· Experience articulating business questions and using quantitative techniques to arrive at a solution using available data

Preferred
· Depth and breadth in quantitative knowledge. Excellent quantitative modeling, statistical analysis skills and problem-solving skills. Sophisticated user of statistical tools.
· Experience processing, filtering, and presenting large quantities (Millions to Billions of rows) of data
· Combination of deep technical skills and business savvy enough to interface with all levels and disciplines within our customer’s organization
· Demonstrable track record of dealing well with ambiguity, prioritizing needs, and delivering results in a dynamic environment
· Excellent verbal and written communication skills with the ability to effectively advocate technical solutions to research scientists, engineering teams and business audiences
· Ability to develop experimental and analytic plans for data modeling processes, use of strong baselines, ability to accurately determine cause and effect relations
· Demonstrable track record of dealing well with ambiguity, prioritizing needs, and delivering results in a dynamic environment
· An MS or PhD degree in Computer Science, Mathematics, Statistics, Finance, Machine Learning or related technical field.
· Experience in online advertising, loyalty programs or financial services (payments products, specifically credit cards would be ideal).
· Experience with customer segmentation and customer behavior analysis.
· Experience in Machine learning (decision trees, multivariate and logistic regression, kNN, kMeans, etc.)

Skills Needed: Minimum Qualifications:
Bachelor’s degree (BS) in Computer Science, Engineering or related field, or equivalent work experience.
At least 8+ years working experience in Java (Spring framework) or equivalent programming
At least 5+ years designing and maintain large traffic software design and development.
Experience working in agile development environment.
Development experience with CI/CD and automation test.
Development experience with relational database, Non-SQL, KVS

Preferred Qualifications:
MS, or Ph.D in Computer Science or related technical discipline.
Experience in managing small to mid-size development team.
Experience in application deployment and operation on public cloud.
Any experience working in a globally distributed engineering team.

Skills Needed: Qualifications
• Strong fundamentals in data structures, algorithms and object oriented programming.
• In-depth understanding of concurrency and distributed computing.
• Experience with one or more general purpose programming languages, including but not limited to Java, Python.
• Experience with NoSQL databases and distributed cache.
• Interest and ability to learn other coding languages as needed.
• Degree in Computer Engineering or Computer Science or 5+ years equivalent experience in SaaS platform development.

Preferred Qualifications
• Software development experience in one or more general purpose programming languages, preferably Scala.
• Experience with implementing platform components such as RESTful APIs, Pub/Sub Systems, Database Clients.
• Experience with AWS services.
• Contribution to open source projects.

Skills Needed: Qualifications
・Solid experience in running, and maintaining automated test cases for Mobile apps using Appium, Web based apps using Selenium, API’s using unirest/Rest Assured.
・Well versed in using Cucumber for all test cases.
・Well versed in using Continuous Integration and Continuous Development tools, like Jenkins/Bitrise or any other.

Preferred Qualifications
・Experience in running performance tests using Gatling/Wrk/Jmeter.
・Experience in Docker and Kubernetes.
・Coding experience in building web or mobile based apps.
・Experience in bash or other CLI scripting
・Curiosity and passion about learning new technologies is a definite plus!

Skills Needed: Minimum Qualifications:
Hands-on development experience in JAVA (minimum 3 years)
Experience in development with DBMS(Oracle, MySQL, etc.)
Web application development experience
3 to 10 years of development experience

Preferred Qualifications:
Experience in E-Commerce and Fintech industries

Skills Needed: Minimum Qualifications:
Over 3 years experience in Linux or Unix operation
Over 3 years experience in Java web application development
Over 3 years experience in Framework implementation
Over 1 year experience as team leader of a few members.

Preferred Qualifications:
・Experience as project leader of group of 3 or more members.
・Fundamental knowledge of HTML / CSS / Javascript

Skills Needed: Basic Qualifications
Bachelor's degree in Computer Science or related fields
8+ years of industry experience
4+ years of management experience
Strong technical passion and depth. OO and System Design skills required.
Proficiency in a major programming language such as (C++, Java, Python, Perl) and SQL, NOSQL in a Unix based environment.
Database modelling skill
Demonstrated success in delivering scalable, distributed, service oriented architecture
Proven track record to raise the bar, recruit top talents, effectively manage performance and motivate
Experience directly managing 6-10 software engineers
Superior presentation and written communication skills in English

Preferred Qualifications
Master's degree in Computer Science
Experience with eCommerce and points or similar loyalty program is beneficial
Written and Spoken Japanese preferred

Skills Needed: Required Experiences/Skills
•Experience of 7+ years, in developing cutting edge technical solutions
•Experience of 2+ years, in developing blockchain solutions
•Experience of 2+ years, in leading teams/projects from a technical prospective
•In-depth knowledge and experience in blockchain development
•Basic knowledge and experience in cloud computing
•Basic knowledge and experience in machine learning
•Being able to translate architecture designs into well structured, tested and documented source code
•Good working knowledge of data structures, algorithms and database technologies
•Hands-on development experience with at least two of the following programming languages:C, C++, C#, Java, Scala, Swift, Go, Clojure, Python, R, Javascript
•In-depth knowledge of Bitcoin and Ethereum protocols and the internals of the transactions
•Experience in developing and deploying smart contracts on the mainnet/testnets and knowledge of how the contract migration works
•In-depth knowledge of at least one of the following permissioned distributed ledger frameworks: Hyperledger Fabric, Corda
•Experience in big data analysis of a blockchain data
•Knowledge of Apache Spark, experience in AWS Athena and/or Azure Databricks
•Knowledge of various kinds of DLTs, not just blockchain
•Knowledge and experience with Git version control tool
•Experience working with teams with agile/lean approaches

Language Skills
•Business or higher level of English communication skills
•Japanese communication skills helpful but not necessary