Hi There！🤝
Nice meeting you!

I am Kevin.Han
What I am professional at are :

IT|

About Me

20+

Years

30+

Projects

7+

Awards/Certificates

3

Natural Languages

10+

Program Languages

20+

Tools/Frameworks

Dedicated to IT area for over 20 years.
Experienced 30+ projects.
Master 10+ program languages.
Develop with 10+ frameworks.
Use 20+ tools.
Speak chinese, english and japanese.
Your reliable!

🛎️ Services

What I am professional at.

System architecture

Due to customer's business needs, trade off five aspects in cost, performance, security, Reliability and maintenance, make the most suitable choice for you.

Architecture design book proposal.

Not only software, but also infrastructure.Not only FrontEnd, but also BackEnd. Bring you business near technology, thus speed up your business.

Land proposal onto technology stacks.

Build technology base with suitable technology stacks with sources, help your idea take off.

Existing architecture review.

Find the weakness or problem in existing architecture, help your system run well and healthily.

Full Stack Development

Not only the backend, but also the frontend, of course including DB design.I provide one stop software development.

BackEnd development

Build system using Java, python, javascript, or php, or other else.

FrontEnd development

Build technology base with suitable technology stacks with sources, help your idea take off.

DB design and Data design

ER design, Table design, and data design.

Project management

Lead and push team members towards predefined goal, within the constraint of Time, Cost and Quantity.

Build project plan

Build reasonable project plan due to deep understanding of technology issues.

Monitor project status

Find out the gap between plan and fact , keep the project run along right way.

Solve project problem

Pick out the problems, solve them with priority.

Training & Education

Traditional training

Make training plan, provide multi stack technology training on demand.

OJT

Share my experience to help fellow members grow up quickly.

Online Training

Using zoom or other tools to provide online training, beyond the constraint of distance.

🌐 Natural Languages

read
write
speak
read
write
speak
read
write
speak

⌨️ Program Language

Python

Java

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PHP

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GO

C

Javascript

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Typescript

HTML

CSS

SQL

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📚 Library/FrameWork

React

Vue

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Tailwind

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MUI

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Ant Design

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Bootstrap

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jQuery

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ExpressJS

Spring

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Mybatis

Flask

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Django

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Firebase

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Keycloak

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🔨 Tools

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Kubernetes

Docker

AWS

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Azure

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Google Cloud

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NodeJs

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Tomcat

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Apache

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MySQL

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PostgreSQL

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Mongo

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ElasticSearch

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Redis

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Kafka

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VSCode

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IntelliJ IDEA

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Git

Shell

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Jenkins

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Maven

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🚀 Projects

xxx IOT(1)

2017.11～2019.05

Team Leader & Technical Support Team core member & SE

An IOT project, built on JAVA Spring stack.
As a core member of Technical Support Team, I developed common functions, wrote develop manual, fixed issues about performance tuning, source review, etc.
As a Team leader, I mentor my fellow member to finish their job smoothly.

JAVASpring BootSpring RestTemplatePOIAzure Blob storageShellDocker

xxx Bank OCR

2017.5～2017.10

Team Leader & Architecture & SE

Help bank to open account through web by scanning My ID card. It used SpringBoot, PostgreSQL, Angular, VM(VirtualBox).
I designed and built it from scratch.
I also developed all backend source, including integrate third party services.
As a Team leader, I built the schedule, fixed issues during proceeding.
Finally I attended Tokyo FINTECH EXPO 2017 to show our product to potential customers.

Spring BootAngularVirtualBoxPostGreSQL

xxx EC(1)

2013.1～2017.4

Team Leader & SE

Help customer to develop&maintain his Payment Gateway Service
Add new feature to service, such as security etc.
Fix bugs or issues found during monitoring .
When offshore, I arranged tasks due to priority, reviewed the source code, fulfill the tasks.
When onshore at customer's spot, I worked with them, like monitoring system, fixed bugs.

SpringMVCMySQLApacheRedmineKibanaElasticSearchPythonShell

More...

2003.7～2012.12

PG & SE& TL& PM

Projects 10 years before are omitted

Omitted

xxx Satellite Space Entertainment

2022.03～now

Team Leader & Full Stack engineer

An agile web project. From customer needs to products. It make it possible to take photos or videos through satellite in space. It include reservation, payment, download, management etc.
As a Team leader, I made schedule, arranged tasks, pushed team proceed to fulfill goals.
As a full stack engineer, I programed not only back end but also front end, reviewed source code from fellow members.
And also sometimes I made some POCs to solve the uncertain problem.

PythonFlaskReactTypescriptMUICasbinAWS EC2AWS S3ASW ECS/ECRAWS LambdaAWS Api GatewayAWS Event BridgeAWS Parameter storeAWS CognitoAWS ElasticsearchAWS ...

xxx BI

2021.03～2022.02

Team Leader & SE

An ETL project, using Microsoft Azure product, such as Synapse, SQL Database, JP1, etc.
As a Team leader, I made schedule, arranged tasks, pushed team proceed to fulfill goals.
As a senior engineer, I programmed, reviewed source code of fellow members.
As a senior engineer, I programmed, reviewed source code from fellow members.
As a senior engineer, I helped my fellow member to solve problems, such as tuning, bug analysis

T-SQLAzure Blob storageAzure SynapseAzure SQL DatabaseJP1Power shell

xxx IOT(2)

2020.09～2021.02

Team Leader & Architecture & SE

A Web project from scratch.
As an Architecture, I construct this system, including Web and Batch. and speed up develop environment construction using docker.
As a Team leader, I made schedule, arranged tasks, pushed team proceed to fulfill goals.
As a SE engineer, I programmed, reviewed source code from fellow members.
As a SE engineer, I released this system onto bare-metal servers in customer's Data center.

JAVASpring BootSpring SecurityThymeleafSpring BatchPostgreSQLTomcatApacheShellDockerSNMPWireShark

xxx EC(2)

2020.08～2019.06

Team Leader & Technical Support Team core member

An EC project, built with Micro services.
As a core member of Technical Support Team, I solved the problems collected from SE teams, such as redis performance tuning, Spring Boot upgrade manual, common function development, technical proposal, source review, etc.
As a Team leader, I mentor my fellow member to finish their job smoothly.

JAVASpring BootSpring BatchAWS RDSAWS LambdaAWS ECS/ECRAWS Elastic CacheKafkaShellDocker

xxx IOT(1)

2017.11～2019.05

Team Leader & Technical Support Team core member & SE

An IOT project, built on JAVA Spring stack.
As a core member of Technical Support Team, I developed common functions, wrote develop manual, fixed issues about performance tuning, source review, etc.
As a Team leader, I mentor my fellow member to finish their job smoothly.

JAVASpring BootSpring RestTemplatePOIAzure Blob storageShellDocker

xxx Bank OCR

2017.5～2017.10

Team Leader & Architecture & SE

Help bank to open account through web by scanning My ID card. It used SpringBoot, PostgreSQL, Angular, VM(VirtualBox).
I designed and built it from scratch.
I also developed all backend source, including integrate third party services.
As a Team leader, I built the schedule, fixed issues during proceeding.
Finally I attended Tokyo FINTECH EXPO 2017 to show our product to potential customers.

Spring BootAngularVirtualBoxPostGreSQL

xxx EC(1)

2013.1～2017.4

Team Leader & SE

Help customer to develop&maintain his Payment Gateway Service
Add new feature to service, such as security etc.
Fix bugs or issues found during monitoring .
When offshore, I arranged tasks due to priority, reviewed the source code, fulfill the tasks.
When onshore at customer's spot, I worked with them, like monitoring system, fixed bugs.

SpringMVCMySQLApacheRedmineKibanaElasticSearchPythonShell

More...

2003.7～2012.12

PG & SE& TL& PM

Projects 10 years before are omitted

Omitted

xxx Satellite Space Entertainment

2022.03～now

Team Leader & Full Stack engineer

An agile web project. From customer needs to products. It make it possible to take photos or videos through satellite in space. It include reservation, payment, download, management etc.
As a Team leader, I made schedule, arranged tasks, pushed team proceed to fulfill goals.
As a full stack engineer, I programed not only back end but also front end, reviewed source code from fellow members.
And also sometimes I made some POCs to solve the uncertain problem.

PythonFlaskReactTypescriptMUICasbinAWS EC2AWS S3ASW ECS/ECRAWS LambdaAWS Api GatewayAWS Event BridgeAWS Parameter storeAWS CognitoAWS ElasticsearchAWS ...

xxx BI

2021.03～2022.02

Team Leader & SE

An ETL project, using Microsoft Azure product, such as Synapse, SQL Database, JP1, etc.
As a Team leader, I made schedule, arranged tasks, pushed team proceed to fulfill goals.
As a senior engineer, I programmed, reviewed source code of fellow members.
As a senior engineer, I programmed, reviewed source code from fellow members.
As a senior engineer, I helped my fellow member to solve problems, such as tuning, bug analysis

T-SQLAzure Blob storageAzure SynapseAzure SQL DatabaseJP1Power shell

xxx IOT(2)

2020.09～2021.02

Team Leader & Architecture & SE

A Web project from scratch.
As an Architecture, I construct this system, including Web and Batch. and speed up develop environment construction using docker.
As a Team leader, I made schedule, arranged tasks, pushed team proceed to fulfill goals.
As a SE engineer, I programmed, reviewed source code from fellow members.
As a SE engineer, I released this system onto bare-metal servers in customer's Data center.

JAVASpring BootSpring SecurityThymeleafSpring BatchPostgreSQLTomcatApacheShellDockerSNMPWireShark

xxx EC(2)

2020.08～2019.06

Team Leader & Technical Support Team core member

An EC project, built with Micro services.
As a core member of Technical Support Team, I solved the problems collected from SE teams, such as redis performance tuning, Spring Boot upgrade manual, common function development, technical proposal, source review, etc.
As a Team leader, I mentor my fellow member to finish their job smoothly.

JAVASpring BootSpring BatchAWS RDSAWS LambdaAWS ECS/ECRAWS Elastic CacheKafkaShellDocker