Experience

• 

  诺基亚

  Mar 1997 - Sept 1999

  Software developer

  TETRA 系统研发

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  Teamware group

  Sept 1999 - Aug 2000

  Software developer

  Phoenix 项目框架组开发

• 

  Nixu corporation

  Oct 2000 - Aug 2001

  Software developer

  ChargeGate 互联网收费系统

• 

  Iobox

  Nov 2001 - Sept 2002

  Senior software development engineer

  手机增值义务，比如短信订酒店

• 

  Digia plc

  Sept 2002 - Jun 2005

  软件工程师

  塞班手机编程，产品有ImageSpy和Presence

• 

  埃森哲

  Jun 2005 - Feb 2009

  System analyst

  多个诺基亚项目，覆盖诺基亚手机，网络，研发中心，诺基亚IT部门项目，通力电梯（Kone）客户管理系统

• 

  诺基亚

  Sept 2009 - Jun 2014

  Software it architect

  LTE/MME Java 多线程编程，Design Pattern，提高性能和稳定性，负责开发日志服务

• 

  Callstats.io

  Feb 2015 - Oct 2015

  Senior software development engineer

  完成大数据实时分析系统后台部分，（服务器端设计，编程）。Nodejs，Kafka，Storm，MongoDB

• 

  Sinoservices international technologies

  Feb 2016 - Dec 2016

  首席架构师 chief architect

  Juhani has provided strategic consultance to top management for adoption emergent technology, for example machine learning, 3D, robotics, blockchain and etc.

• 

  Byg advantage

  Mar 2017 - Jul 2017

  It 专家 expert

  Voltdb 售前咨询工程师

• 

  Shanghai supwisdom information and technology ltd

  Mar 2018 - Jul 2018

  Information technology architect

  research Kubernetes and ELK

• 

  Shanghai shinyinfo information ltd

  Sept 2018 - Aug 2021

  Senior technical consultant

  Juhani has provide technical consultance to different technology lines, from business level to down to earth technical detail problem, from outlier detection, smart alarm(NLP), big data, splunk, ELK, RAP, Kafka, ...

• 

  上海华芬软件有限公司 shanghai chinish software ltd.

  Sept 2021 - now

  自由软件工程师 freelance

  An independent software professional. JianJun Juhani SHEN is currently focusing on LLM training. The buzz word is AI native application, RAG, vector database, transformer.