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Jun Wang, Solution Architect and Developer in Frisco, TX, United States
Jun Wang

Solution Architect and Developer in Frisco, TX, United States

Member since January 17, 2023
Jun is a results-driven, forward-thinking technologist with comprehensive experience building mission-critical enterprise systems and transforming legacy systems into cloud-based solutions. He has demonstrated consistent execution excellence via effective leadership and problem-solving. He also draws out concepts, patterns, and practices into workable business solutions. Jun's core competencies include Azure solution architecture, development, delivery, microservices, DevOps, and hybrid clouds.
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Portfolio

Experience

  • .NET 20 years
  • C# 20 years
  • SQL 20 years
  • Solution Architecture 20 years
  • Software Development Lifecycle (SDLC) 19 years
  • APIs 12 years
  • Cloud 10 years
  • Azure 8 years

Location

Frisco, TX, United States

Availability

Part-time

Preferred Environment

Cloud, Azure, .NET, Apigee

The most amazing...

...thing I've done is bring a paper-based manual process to a full-blown loan origination system with a multi-billion dollar portfolio as a tech lead.

Employment

  • Solution Architect

    2019 - PRESENT
    Fortune 500 Bank
    • Served as a core team member of the digital transformation process. Acted as the subject matter expert for credit and loan applications, origination, and servicing, as well as Azure and hybrid cloud solutions.
    • Analyzed existing banking systems and prepared the current system landscape. Contributed to the definition of future hybrid-cloud and products-focused architecture based on reference architecture and specific business needs.
    • Drove the overall technical design to rearchitect, rebuild, refactor, and retire legacy systems. Adopted modern tech stacks and emerging standards, such as DDD, microservices, cloud-native apps, event and message-driven architecture, and Kubernetes.
    • Led workshops to advocate best practices in hybrid clouds and DevOps. Reviewed critical designs and related code to ensure adherence to architectural decisions, identified gaps, and guided developers.
    • Adopted modern tech stacks and emerging standards, such as DDD, microservices, cloud-native apps, and event and message-driven architecture. Was hands-on coding in C#.
    • Collaborated with other architects and domain experts to evaluate a wide range of solutions, including integration platforms, rule engines, API management, and clouds. Made recommendations based on guiding principles.
    • Worked with the enterprise platform and app teams to migrate apps to Azure. Co-authored security architecture and migration path using Azure AD, Key Vault, DevOps, Container Registry, Kubernetes Service, API management service, and event hubs/Kafka.
    Technologies: Architecture, Azure, Cloud, Azure Cosmos DB, C#, Apigee, Cloud Security, Domain-driven Design (DDD), Event-driven Architecture, Google Cloud Platform (GCP), Amazon Web Services (AWS), Java, OpenAPI, REST APIs, Apache Kafka, .NET Core, Spring Boot, Microservices, MuleSoft, Message Driven Architecture, SOAP, .NET, JMS, AMQP, REST, Solution Architecture, Software Development Lifecycle (SDLC)

  • Technical Architect | Team Lead

    2016 - 2019
    A Fortune 500 Bank
    • Supervised a joint team of ten to complete the system integration project to modernize the loan origination system using Salesforce in MuleSoft Anypoint and .NET.
    • Worked closely with senior management and vendor to prepare the scope of work and roadmap.
    • Collaborated with multiple interfacing partners on microservices and API gateways.
    • Prepared system design artifacts, including technical specs, system diagrams, interface and message definitions, use cases, risk analysis, and non-functional requirements.
    • Practiced SOLID, DDD, BDD, and TDD to improve code quality and maintainability significantly. Migrated apps to private cloud thru CI/CD pipeline with built-in security.
    • Worked with multiple teams to ensure all SORs (system-of-record) were positioned to support a Transition Services Agreement in the event of a Customer Divestiture Event with another bank where a specific region or population of accounts is sold.
    Technologies: Solution Architecture, VMware Tanzu Application Service (TAS) (Pivotal Cloud Foundry (PCF)), MuleSoft, Apache Kafka, .NET, APIs, SQL, RAML, GitHub, Jenkins, uDeploy, Software Development Lifecycle (SDLC)

  • Architect | Team Lead | Senior Web Developer

    2004 - 2016
    A Fortune 500 Bank
    • Started as tech lead to bring a paper-based manual process to a full-blown loan origination system with a multi-billion dollar portfolio.
    • Created technical design documents, including high-level system design and messaging artifacts, specifically SOAP, WSDL, and XSD. I also included component and class diagrams, process flows, and database design.
    • Oversaw all development efforts and provided directions to team members.
    • Owned critical development tasks and was closely involved in all development activities.
    • Expanded the system into a major enterprise system through multiple acquisitions and integrations.
    Technologies: Solution Architecture, .NET, C#, SOAP, REST APIs, Node.js, React, AMQP, AppDynamics, Splunk, Oracle, Software Development Lifecycle (SDLC)

  • Consultant | Architect

    2004 - 2005
    Arizona Department of Transportation
    • Redesigned the Digital Driver License System (DDL) as a multi-tiered .NET application to capture customers' photos, render, and store driver licenses and ID cards.
    • Collected requirements and analyzed existing systems.
    • Assisted in end-to-end testing, production install, training, and hiring.
    Technologies: MSMQ, SQL, C#.NET, Software Development Lifecycle (SDLC)

  • Lead Software Engineer

    1999 - 2004
    Arizona Republic Services
    • Worked directly with Microsoft to create a then state-of-the-art commodity trading system with .NET.
    • Led a team of five to complete a multi-tiered system for order scheduling and processing using VC++.
    • Created a three-tiered application for wholesale billing to assist power trading and risk management using C++ and SQL.
    Technologies: .NET, Microsoft Visual C++, SQL, Software Development Lifecycle (SDLC)

  • Software Engineer

    1997 - 1999
    ConSyGen Inc
    • Created a web app with backend engine for data mining and knowledge management.
    • Authored and maintained C++ libraries for system re-engineering.
    • Prepared developer guide to help team to quickly adopt the libraries I created.
    Technologies: C++, C, Oracle PL/SQL, Unix, Bash Script, Perl, Java, Software Development Lifecycle (SDLC)

Experience

  • Tweet Sampler
    https://github.com/jun1wang/TweetsSampler

    A .NET Core application that showcases SOLID software principles and consists of four components.

    TweetSampler.Worker, is a worker service that hosts the processor, which does all the hard work. The second component, TweetSampler.Core, is a class library that calls Tweetinvi to access Twitter STREAM APIs. It receives a sample Tweet stream and identifies the top 10 most popular hashtags. It also persists the results to share with the public. Meanwhile, TweetSampler.Model is also a class library that contains common models shared between TweetSampler.Core and TweetSampler.API. Finally, TweetSampler.API is a REST API that publishes the most popular hashtags to the public.

Skills

  • Languages

    SQL, C++, C, Java, C#, Fortran, Bash Script, Perl, C#.NET, PCF

  • Frameworks

    .NET, .NET Core, Spring Boot

  • Platforms

    Azure, Unix, MuleSoft, Google Cloud Platform (GCP), Amazon Web Services (AWS), Apache Kafka, VMware Tanzu Application Service (TAS) (Pivotal Cloud Foundry (PCF)), Oracle, Salesforce

  • Other

    Cloud, Software Development Lifecycle (SDLC), APIs, Solution Architecture, Domain-driven Design (DDD), Message Driven Architecture, Cloud Security, SOLID Principles, SOAP, MSMQ, RAML, Cloud Architecture

  • Libraries/APIs

    Apigee, OpenAPI, REST APIs, JMS, AMQP, Node.js, React

  • Tools

    Microsoft Visual C++, GitHub, Jenkins, uDeploy, AppDynamics, Splunk

  • Paradigms

    Microservices, Event-driven Architecture, REST

  • Storage

    NoSQL, Azure Cosmos DB, Oracle PL/SQL

Education

  • Coursework Toward a PhD in Computational Geophysics
    1994 - 1997
    University of Arizona - Tucson, Arizona, USA
  • Master's Degree in Geophysics
    1986 - 1989
    China University of Geosciences - Beijing, China

Certifications

  • Microsoft Azure Solutions Architect Expert
    OCTOBER 2022 - OCTOBER 2023
    Microsoft
  • Microsoft Certified: Azure Administrator Associate
    MAY 2022 - MAY 2023
    Microsoft

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