Summary
Overview
Work History
Education
Skills
Timeline
Generic

BILL SUN

McLean,USA

Summary

Seasoned Senior Solutions Architect with over 20 years of experience in designing and implementing scalable, secure, and high-performance solutions across cloud platforms (Azure, AWS, GCP). Proven expertise in API integration, DevSecOps, and AI/ML applications within regulated industries, including government and finance. Adept at leading cross-functional teams, driving digital transformation, and delivering innovative solutions that align with business objectives.

Overview

26
26
years of professional experience

Work History

Sr. Solution Architect

Optimo-IT (Contractor at US Postal Service)
03.2024 - Current
  • Designed and implemented a multi-cloud Generative AI solution, integrating Azure OpenAI services for enterprise-scale applications.
  • Led the modernization of USPS mobile applications, enhancing user experience and performance.
  • Provided technical leadership in API development, cloud notifications, and DevSecOps practices.
  • Delivered technical architectures for GenAI projects, including image alt-text generation and integrated sales reporting solutions.
  • Technologies: Kotlin, iOS, Android, GitHub Copilot, GCP, Azure AI, Power Apps, Keycloak, Docker, AKS.

Azure Cloud Architect

Department of Justice (Contractor)
03.2024 - Current
  • Conducted comprehensive reviews of Azure IAM and security policies, proposing enhancements to RBAC strategies.
  • Oversaw large-scale data migrations from on-premises systems to Azure Cloud, employing Terraform, Ansible Tower, and CI/CD pipelines.
  • Provided technical services on Databricks infrastructure and development with Azure Data Factory.

Principal Solution Architect (Director)

TransUnion
01.2023 - 02.2024
  • Led architecture reviews within Global Architecture and Solution Architecture Committees.
  • Formulated roadmaps and architectures for global B2B data-intensive applications.
  • Spearheaded integration efforts across multiple cloud platforms post-acquisitions, developing MVPs and aligning with corporate strategies.
  • Key Projects:
  • Secure Enclave: Implemented GCP Confidential Space with DuckDB and NIX for data privacy.
  • Unified Platform Service: Introduced a common platform service addressing SSO and user experience across AWS, Azure, and GCP.
  • Unified Data Pipeline: Streamlined data processing, enabling reuse across applications without additional transformations.
  • Credit Informed Marketing & Campaign Insight: Consolidated products to empower data-driven decisions.
  • Technologies: Aerospike, MongoDB, Python, Java, Apache Kafka, Spark, Snowflake, Terraform, YAML, PowerShell, Bash, Salesforce, Adobe AEM.

Enterprise Architect (Director)

NPD
02.2022 - 12.2022
  • Migrated on-premises data processing pipelines to Azure Databricks, reducing processing time by 50%.
  • Modernized SAS programs to cloud-based solutions, improving accuracy and reducing manpower requirements.
  • Developed application frameworks with DevSecOps, logging, and monitoring standards.
  • Collaborated with Azure and Databricks teams to develop disaster recovery plans and drive DevOps adoption.
  • Technologies: C#, .NET, Azure Databricks, Azure DevOps, Azure Data Factory, Python, R, Apache Kafka, Spark, Snowflake, Terraform.

Sr. Specialist Leader (Sr. Manager)

Attain/Maximus (Contractor at SEC)
08.2020 - 02.2022
  • Provided solution architecture and technical management services during project life cycles.
  • Conducted phased cloud migration analysis of 70 applications, providing recommendations for implementation.
  • Led Proof of Concept (POC) for SSO integration on AWS cloud, including Docker, Kubernetes, and GitLab.
  • Guided teams through entire project life cycles, including IT infrastructure upgrades and cloud-based solution adoption.
  • Technologies: Splunk, ServiceNow, Linux, AWS, Git, GitLab, PuTTY, WinSCP, Apache, Jupyter, Oracle, SQL Server.

Specialist Master (Manager)

Deloitte (Contractor at HRSA)
05.2019 - 08.2020
  • Oversaw architecture design and software releases to meet HRSA standards.
  • Conducted business case analyses for application modernization and cloud migration.
  • Led File Server modernization initiatives, migrating documents to Azure Blob Storage and integrating with Document Services.
  • Technologies: Azure API Management, Azure Kubernetes Service, C#, Java, AngularJS, Azure Key Vault, Azure Event Grid, Azure Function Apps.

Sr. Software Engineer/Software Architect

Booz Allen Hamilton
11.2016 - 05.2019
  • Introduced Azure Serverless concepts, promoting cost-effective solutions.
  • Led DevOps initiatives, improving team efficiency and reducing deployment errors.
  • Defined and implemented CI/CD pipelines under Microsoft Azure DevOps.
  • Technologies: .NET Core, Docker, Azure Container Registry, Azure Kubernetes Service, Azure Load Balancer.

Sr. Solution Architect

Hogan Lovells International LLP
05.2007 - 10.2016
  • Architected and built base frameworks for applications using UML and Visual Studio.
  • Migrated franchise law information systems from on-premises data centers to Azure Cloud.

Sr. Software Engineer (.NET)

CoStar Group Inc
04.2004 - 05.2007
  • Participated in the software development life cycle for real estate information systems on the Microsoft .NET platform.

Lead Developer (.NET/Java)

Nuclear Energy Institution
05.2001 - 04.2004
  • Implemented business functions and reviewed design code for software development projects.

Software Engineer (Java Developer)

Simplexity
02.1999 - 04.2001
  • Participated in the software development.

Education

Master of Science - Computer Science

Johns Hopkins University
Baltimore, MD
12-1999

Bachelor of Science - Applied Math

Tsinghua University
Beijing, China

Skills

  • Cloud Platforms: Azure, AWS, GCP
  • DevOps & Automation: Terraform, Ansible, Jenkins, CI/CD Pipelines
  • Programming Languages: Python, Java, C#, R, Bash, PowerShell
  • Data & AI/ML: Databricks, Azure Data Factory, Apache Kafka, Spark, Snowflake
  • Security & Compliance: IAM, RBAC, Okta, HIPAA, PCI, CCPA
  • Architecture Frameworks: TOGAF, ArchiMate, Bizz Design
  • Tools & Platforms: GitHub, GitLab, Azure DevOps, ServiceNow, Splunk
  • Methodologies: Agile, SAFE, DevSecOps

Timeline

Sr. Solution Architect

Optimo-IT (Contractor at US Postal Service)
03.2024 - Current

Azure Cloud Architect

Department of Justice (Contractor)
03.2024 - Current

Principal Solution Architect (Director)

TransUnion
01.2023 - 02.2024

Enterprise Architect (Director)

NPD
02.2022 - 12.2022

Sr. Specialist Leader (Sr. Manager)

Attain/Maximus (Contractor at SEC)
08.2020 - 02.2022

Specialist Master (Manager)

Deloitte (Contractor at HRSA)
05.2019 - 08.2020

Sr. Software Engineer/Software Architect

Booz Allen Hamilton
11.2016 - 05.2019

Sr. Solution Architect

Hogan Lovells International LLP
05.2007 - 10.2016

Sr. Software Engineer (.NET)

CoStar Group Inc
04.2004 - 05.2007

Lead Developer (.NET/Java)

Nuclear Energy Institution
05.2001 - 04.2004

Software Engineer (Java Developer)

Simplexity
02.1999 - 04.2001

Master of Science - Computer Science

Johns Hopkins University

Bachelor of Science - Applied Math

Tsinghua University

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BILL SUN