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Avatar of 張致瑋.
BI/DATA Engineer
Within one month
Chih-Wei Chang  Data Engineer | BI | Web3 • [email protected] •Aiming to forge a progressive career in business intelligence, employing my analytical and technical prowess in data engineering to effectively further business objectives. Having BI/DATA Engineer experience with different industry; substantial experience designing and executing solutions for business problems involving large scale data warehousing Design and implement data warehouse solutions for different stage of project Familiar with design, implement and maintain ETL process Abilities Programming Python SQL Dataflow Cloud Pubsub ETL MSBI Hive Airflow Tableau Docker Trinity DW Platforms AWS GCP People/Personal Project
SQL
my-sql
ETL
Full-time / Interested in working remotely
6-10 years
Avatar of 鄭凱元.
Avatar of 鄭凱元.
AI Engineer @TSMC 台積電
2022 ~ Present
AI工程師、機器學習工程師、深度學習工程師、資料科學家、Machine Learning Engineer、Deep Learning Engineer、Data Scientist
Within one month
. Mechanical Engineer (Vehicle Chassis), HAITEC, 2016//4 Design and develop steering wheel and airbag. SKILLS Programming Python C++ Development Tools PyTorch OpenCV Linux Docker Git Domain knowledge Super resolurion Object detection Face detection and recognition Machine Learning Web Crawling EDUCATION INSTITUTE FOR INFORMATION INDUSTRY Data Engineering and Data Analytics Intensive Training Program (2018//11) NATIONAL TAIWAN UNIVERSITY (NTU) Master of Mechanical Engineering (2013//7) NATIONAL TAIWAN UNIVERSITY (NTU) Bachelor of Mechanical Engineering (2009//6) CERTIFICATES Microsoft Professional Program: Data Science Certificate TOEIC Golden Certificate (915/990) PROJECTS
Python
machine learning
Linux
Employed
Full-time / Interested in working remotely
4-6 years
國立臺灣大學 (National Taiwan University)
機械工程研究所

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Technical Skills
Specialized knowledge and expertise within the profession (e.g. familiar with SEO and use of related tools).
Problem-Solving
Ability to identify, analyze, and prepare solutions to problems.
Adaptability
Ability to navigate unexpected situations; and keep up with shifting priorities, projects, clients, and technology.
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Ability to convey information effectively and is willing to give and receive feedback.
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Within three months
Consultant Software Development Engineer
Mastercard
2020 ~ Present
India
Professional Background
Current status
Employed
Job Search Progress
Professions
Back-end Engineer
Fields of Employment
Software
Work experience
More than 15 years
Management
None
Skills
Spring Boot
Spring Framework
Apache Spark
Reactor
KAFKA
MongoDB
Cassandra
PCF
Azure
Languages
Job search preferences
Positions
Job types
Full-time
Locations
Remote
Interested in working remotely
Freelance
Yes, I freelance in my spare time
Educations
School
The M.S University of Baroda
Major
Computer Application
Print

Dhaval Shah

Principal Software Engineer /  Software Architect / Performance Engineering Aficionado


A detailed-oriented hands-on professional having 18+ years of experience along with exceptional interpersonal skills, seeking a challenging role within Software Development Engineering for architecting, designing and developing low latency / high throughput distributed systems with a sharp focus on scalability, resiliency, operability and monitoring.


               

Work Experience

Principal - Software Engineering  •  Mastercard

Aug 2022 - Present

Tech Stack - Java 11, Spring WebMVC, Azure, Snowflake, AngularJS


Responsibilities
Architect Fraud Insight reporting platform for its end customers
  • Making architecture decisions w.r.t light weight message brokers and caching infrastructure
  • Analysis, troubleshooting and recommendation w.r.t
    • RedissonClient performance issue
    • Proactive memory leak analysis and GC hotspots

Lead - Software Engineering  •  Mastercard

January 2020 - Jul 2022

Tech Stack - Java 8, Spring Webflux, Reactor, MongoDB, Kafka, Apache Spark


Responsibilities
Tech Lead with an ownership to drive qualitative and performant implementation of Assemble Platform
  • Implemented Push Provisioning APIs for Prepaid’s Assemble platform using Spring Webflux and Spring Reactor
  • Created Dynatrace dashboards that emit USE / RED metrics to enhance monitoring and observability capabilities of platform
  • Designed and implemented batch jobs as part of the data engineering pipeline for preparing data lake
  • Part of Performance SIG leadership within software engineering guild

Consultant - Software Engineering  •  Mastercard

April 2018 - December 2019

Click2Pay
Tech Stack - Java 8, Spring Web MVC, Spring Reactor, Kafka, Oracle

Responsibilities

Architected and designed Card Service bounded context with sharp focus on design quality, latency / throughput, operability and monitoring

  • Implemented APIs and batch jobs for Card Service bounded context developed as part of EMV Co. based Secure Remote Commerce. 
  • Designed and Implemented API validation and exception handling framework
  • Implemented schedulers for orphan record deletion (by using Spring Core Reactor) and import of account ranges
  • Successfully completed performance comparison to determine optimal DB model :
          i. MongoDB and PostgreSQL for managing JSON formatted data
          ii. Oracle – row column Vs JSON storage
  • Prepared operations Run Book by capturing application behavior (via Splunk) at probable failure points to ease out troubleshooting and triaging

Consultant - Software Engineering  •  Mastercard

January 2016 - March 2018

Masterpass
Tech Stack - Java 8, Spring Core, Spring MVC, Spring Data JPA, Spring Batch, Oracle

Responsibilities -
Lead design and architecture of Masterpass Wallet. Key highlights :
  • Enhancing existing APIs to support X-Pays
  • Tuned performance of application by 15-20% via
          i. Plugged potential memory leaks by performing thorough GC analysis
          ii. Tuning GC by tweaking some of its flag
          iii. Implementing parallelized and asynchronous flows as per its applicability

Consultant - Software Engineering  •  Mastercard

January 2014 - December 2015

DirectExpress
Tech Stack - Java 6, Spring Core, Spring MVC, Spring Data JPA, MySQL

Responsibilities -
Lead design and architecture and performance aspects of backend. Key highlights :
  • Scaled application backend from 3 lac to 6 lac users by
          i. Tuning DB queries
          ii. Reducing memory footprint and GC tuning to reduce CPU utilization and latency

Tech Lead  •  C-Sam Solutions

July 2010 - December 2013

Client - Axis Bank

Tech Stack - Java 6, Struts, Spring, Hibernate, Oracle

Responsibilities - Lead Axis bank's mBanking application.

Module Lead  •  Paul Mason Consulting

September 2008 - June 2010

Client - British Telecom - Fresca

Tech Stack - Java 5, Struts, Axis 2, MySQL, Hibernate

Responsibilities
Lead a client dedicated team to deliver omni channel capability by integrating heterogeneous systems

Programmer Analysts  •  Cognizant Technology Solutions

July 2005 - August 2008

Client - JPMC - IB
Tech Stack - Java 4, Struts, Spring, Hibernate
Responsibilities
Delivery of key modules for Futures and Options / Docport application

Education

2002 - 2005

The M.S University of Baroda

Masters of Computer Application

1998 - 2002

SVIT Vasad

Bachelors of Engineering - Civil

Skills

Design / Architecture


  • Microservices
  • Cloud Native Architecture
  • Event Driven Architecture
  • Domain Driven Design

Programming Language / Frameworks


  • Java 8
  • Spring Boot, Spring Webflux, Spring Reactor, Spring Core
  • Intellij, Git, Splunk, Gatling, Dynatrace, Eclipse MAT, Unravel
  • CosmosDB, MongoDB, Cassandra, Oracle
  • Apache Spark
  • Kafka

IaaS / PaaS


  • Azure
  • Pivotal Cloud Foundry
Resume
Profile

Dhaval Shah

Principal Software Engineer /  Software Architect / Performance Engineering Aficionado


A detailed-oriented hands-on professional having 18+ years of experience along with exceptional interpersonal skills, seeking a challenging role within Software Development Engineering for architecting, designing and developing low latency / high throughput distributed systems with a sharp focus on scalability, resiliency, operability and monitoring.


               

Work Experience

Principal - Software Engineering  •  Mastercard

Aug 2022 - Present

Tech Stack - Java 11, Spring WebMVC, Azure, Snowflake, AngularJS


Responsibilities
Architect Fraud Insight reporting platform for its end customers
  • Making architecture decisions w.r.t light weight message brokers and caching infrastructure
  • Analysis, troubleshooting and recommendation w.r.t
    • RedissonClient performance issue
    • Proactive memory leak analysis and GC hotspots

Lead - Software Engineering  •  Mastercard

January 2020 - Jul 2022

Tech Stack - Java 8, Spring Webflux, Reactor, MongoDB, Kafka, Apache Spark


Responsibilities
Tech Lead with an ownership to drive qualitative and performant implementation of Assemble Platform
  • Implemented Push Provisioning APIs for Prepaid’s Assemble platform using Spring Webflux and Spring Reactor
  • Created Dynatrace dashboards that emit USE / RED metrics to enhance monitoring and observability capabilities of platform
  • Designed and implemented batch jobs as part of the data engineering pipeline for preparing data lake
  • Part of Performance SIG leadership within software engineering guild

Consultant - Software Engineering  •  Mastercard

April 2018 - December 2019

Click2Pay
Tech Stack - Java 8, Spring Web MVC, Spring Reactor, Kafka, Oracle

Responsibilities

Architected and designed Card Service bounded context with sharp focus on design quality, latency / throughput, operability and monitoring

  • Implemented APIs and batch jobs for Card Service bounded context developed as part of EMV Co. based Secure Remote Commerce. 
  • Designed and Implemented API validation and exception handling framework
  • Implemented schedulers for orphan record deletion (by using Spring Core Reactor) and import of account ranges
  • Successfully completed performance comparison to determine optimal DB model :
          i. MongoDB and PostgreSQL for managing JSON formatted data
          ii. Oracle – row column Vs JSON storage
  • Prepared operations Run Book by capturing application behavior (via Splunk) at probable failure points to ease out troubleshooting and triaging

Consultant - Software Engineering  •  Mastercard

January 2016 - March 2018

Masterpass
Tech Stack - Java 8, Spring Core, Spring MVC, Spring Data JPA, Spring Batch, Oracle

Responsibilities -
Lead design and architecture of Masterpass Wallet. Key highlights :
  • Enhancing existing APIs to support X-Pays
  • Tuned performance of application by 15-20% via
          i. Plugged potential memory leaks by performing thorough GC analysis
          ii. Tuning GC by tweaking some of its flag
          iii. Implementing parallelized and asynchronous flows as per its applicability

Consultant - Software Engineering  •  Mastercard

January 2014 - December 2015

DirectExpress
Tech Stack - Java 6, Spring Core, Spring MVC, Spring Data JPA, MySQL

Responsibilities -
Lead design and architecture and performance aspects of backend. Key highlights :
  • Scaled application backend from 3 lac to 6 lac users by
          i. Tuning DB queries
          ii. Reducing memory footprint and GC tuning to reduce CPU utilization and latency

Tech Lead  •  C-Sam Solutions

July 2010 - December 2013

Client - Axis Bank

Tech Stack - Java 6, Struts, Spring, Hibernate, Oracle

Responsibilities - Lead Axis bank's mBanking application.

Module Lead  •  Paul Mason Consulting

September 2008 - June 2010

Client - British Telecom - Fresca

Tech Stack - Java 5, Struts, Axis 2, MySQL, Hibernate

Responsibilities
Lead a client dedicated team to deliver omni channel capability by integrating heterogeneous systems

Programmer Analysts  •  Cognizant Technology Solutions

July 2005 - August 2008

Client - JPMC - IB
Tech Stack - Java 4, Struts, Spring, Hibernate
Responsibilities
Delivery of key modules for Futures and Options / Docport application

Education

2002 - 2005

The M.S University of Baroda

Masters of Computer Application

1998 - 2002

SVIT Vasad

Bachelors of Engineering - Civil

Skills

Design / Architecture


  • Microservices
  • Cloud Native Architecture
  • Event Driven Architecture
  • Domain Driven Design

Programming Language / Frameworks


  • Java 8
  • Spring Boot, Spring Webflux, Spring Reactor, Spring Core
  • Intellij, Git, Splunk, Gatling, Dynatrace, Eclipse MAT, Unravel
  • CosmosDB, MongoDB, Cassandra, Oracle
  • Apache Spark
  • Kafka

IaaS / PaaS


  • Azure
  • Pivotal Cloud Foundry