Summary
Overview
Work History
Education
Skills
Certification
Timeline
Generic

Calvin Ham

Dallas,TX

Summary

Calvin has a variety of experience in mobile development, design and architecture. He has 15+ years’ experience designing and maintaining technology solutions He is a self-motivated individual who has led various teams in different capacities, has deep understanding of Mobile Application Architecture, both frontend and backend design/architecture with extensive experience in leading teams in onshore-offshore model. Calvin is passionate about writing clean, maintainable, and efficient code and optimize applications for performance and scalability.

Overview

11
11
years of professional experience
1
1
Certification

Work History

Technical Business Analyst/Agile Scrum Master

Disney
02.2021 - 12.2024
  • Led a cross-functional product development teams of 36 onshore & offshore resources to design, develop and enhance software assets that meet or exceed internal and client expectations
  • Supporting in the running scrum along with code review / hackathon type sessions for multiple projects running in parallel
  • Assisting on developing and presenting innovative technologies and assisting in creating a reusable component-based architecture while exploring new innovative ways and keeping up with industry standards

Application Developer

RENT-A-CENTER, INC.
01.2021 - 03.2021
  • Design, build and configure applications to meet business process and application requirements

Application Developer

CENTURYLINK
08.2020 - 12.2020
  • Led a team of 10 onshore and offshore developers in building a consumer-facing iOS app to allow their customers to controls and managed their residential gateways/routers with the functionalities such as providing control over the modem and WIFI connections, creating guest networks
  • Integrated with Apigee and Salesforce backend

Application Developer

INTERCONTINENTAL HOTELS GROUP
01.2020 - 04.2020
  • Application developer in a rapid cycle development using agile methodology in a pod organization setup
  • A customer facing app that integrated financial and analytics solutions using best practices
  • Worked closely with the Client and Accenture leads to define technical solutions per business requirements

Mobile Architect / Developer

AT&T - Warner Bros
10.2019 - 12.2019
  • Advised Time Warner on compliance of their Mobile apps with the CCPA laws
  • Developed POCs app to test and verify third party SDKs on their alignment with California Consumer Protection regulations and GDPR

Business Process Architect

WALGREENS BOOTS ALLIANCE, INC.
02.2019 - 09.2019
  • Engaged with business owners to understand requirements/vision for scope to pull forward and worked with Product to define value drivers and support business case development
  • Ensured timely updates/engagements with business owners on product design/development activities
  • Business Analysis, Interpretation and analysis of cross-functional business requirements, customer use journeys
  • Developed strategic plans for the business team within the program on their roles and interactions, schedule releases and impacts
  • Created a framework that specifies ways of working within the business team and interactions with Leadership, Product and engineering team
  • Developed process documentation on the project and operational processes to analyze both internal and external end user impacts on deliverable schedule

User Experience Lead

Saudi Aramco
11.2018 - 01.2019
  • Identified, interpreted and analyzed data to identify key metrics and transform raw data into meaningful, actionable information
  • Reviewed available data sources to create visually impactful dashboards
  • Designed, build and configured User interface to meet their Reporting need

System Analyst

Berkshire Hathaway Inc
09.2018 - 10.2018
  • Transformed requirements into process / flow design specifications that were used by the rest of the development team to build and test solutions
  • Identified integration point requirements for the front end architecture
  • Tools: MS Visio, Swagger API, Github, Postman, SoapUI

System Analyst | Scrum Master

Major Healthcare Corporation
01.2018 - 09.2018
  • Led a scrum team for a claim modernization project, managing requirements definition and validation, user story estimation, and backlog prioritization
  • I collaborated with business and technical stakeholders to ensure alignment of proposed designs and solutions
  • I transformed requirements into architectural and technical design specifications to build and test solutions, and created system designs to define application and system interactions, as well as data analysis

Technical Architect

DEUTSCHE TELEKOM
04.2017 - 11.2017
  • Digital Transformation Architecture project, that spans numerous Legacy environments and service layers
  • Transformed the requirements created by functional business analysts into a set of architecture and technical design specifications
  • Worked with the client Business Arch, Middle ware Architecture, and Front-End Architecture for comprehensive end-to-end solution
  • Created design/architectural diagrams, systems integration mappings and technical design specifications for delivered solutions
  • Assisted in defining requirements for the application, including scalability, performance, recoverability, security and confidentiality, maintainability, operatability, and availability
  • Ensured that the requirements are met across the technical stack, back end architectures
  • Designed new service, API optimization and authored Swaggers
  • Supported production enhancement, issues and defect triage till resolved
  • Led the technical grooming of user stories

Data Analyst

Johnson & Johnson
10.2016 - 04.2017
  • Created visually impactful dashboards, interpreted and analyzed data to identify key metrics and transform raw data into meaningful, actionable information
  • Supervised the data extraction from over 400+ client sites
  • Created the template that analyzed massive and highly complex data sets, performed ad-hoc analysis and data cleanse
  • Led a team of 4, created manuals and procedure that was essential in the team's daily tasks
  • Performed Peer reviews

Business Process Analyst

ROYAL CARIBBEAN CRUISES LTD
07.2016 - 09.2016
  • Coordinated and led requirements gathering sessions, project goals, business and detailed requirements
  • Facilitated reviews and obtained sign-offs of requirements by all stakeholders
  • Collaborated with clients to gather and document their business requirements while working with the technical team to design and develop innovative solutions
  • Documented business requirements, functional specifications and uses cases

Application Developer/Team Lead

BARCLAYS
06.2015 - 06.2016
  • Led a 16-member onshore and offshore team using Agile/Scrum methodologies in building a mobile applications
  • Worked closely with stakeholders and product owners to refine functional designs and deliver innovative solutions
  • Worked with Business and Architects to define requirements and collaborated with Product to identify and address gaps or dependencies in the requirements

Internal Application Developer

03.2015 - 04.2015
  • An iOS application that access stream of sensor data in real time from various wearable devices using BLE technology and transform the data to be integrated into a cloud storage architecture, through Salesforce
  • Development of a Mobile app application (iOS)
  • Worked on Apple Watch integration to the application

Application Tech Lead

Pioneer Natural resources
01.2015 - 02.2015
  • Led the development of iPad app for the oil industry in a very tight time-frame of 2 weeks
  • Led a team of Offshore developers (5 devs)
  • Architect and designed the application, coded the prepopulated database and offline sync of data
  • Participated in UX/UI design
  • Assessed requirements, evaluated technology solution, design and architecture of the Application
  • Assigned tasks, followed up issues that arose and daily updates of progress to the Client's product owner
  • Performed Peer and Code reviews
  • Leading collaborations within developers to make sure the full stack of the project are working together
  • Maintained the source code versions in GIT and use JIRA for issue tracking
  • Worked on implementation of continuous integration in Xcode using OSX Server for maintaining versions of build archives and testing

Internal Tech Lead

11.2014 - 12.2014
  • Led development in all phases of SDLC
  • Led a team of Offshore developers (2 devs)
  • Created and defined storyboarding, designed and architect the application
  • Collaborated with the visual designers offshore on the overall feel of the app
  • Participated in UX/UI design
  • Assigned tasks, followed up issues that arose and daily updates of progress to the Client's product owner
  • Performed Peer and Code reviews
  • Maintained the source code versions in GIT and use JIRA for issue

Tech Lead

Dex Media
05.2014 - 08.2014
  • Company Overview: Dex Media is a leading print and digital marketing company
  • The project scope was to update the application to current technology (from iOS 5.1 to iOS 7), improve on the architecture to take advantage of the redesign on the backend and upgrade the custom software framework used
  • Sole iOS resources onsite in the project, in an agile environment
  • Managed team of 4 resources (1 onsite, 3 offshore)
  • Coordinated with Business management, stake and product owners, in scope and direction of mobile development, task estimations and expectations
  • Groomed user stories, assessment of requirements and internal processing using scrum/agile methodologies
  • Assigned task and enforced code standards
  • Updated, refactored and redesigned the SalesPrep app
  • Updated code base from iOS 5 to iOS 7 and fixed layout, errors and deprecated methods issue that arose
  • Dex Media is a leading print and digital marketing company

Application Developer

Dr. Pepper Snapple Group
12.2013 - 04.2014
  • The DPSG app is a universal enterprise app for their sale and marketing group

Education

Bachelor of Science - Computer Science

University of Nairobi
Nairobi, Kenya

Skills

  • Agile methodology
  • Requirements gathering
  • Data analysis
  • User interface design
  • Software development
  • Team leadership
  • Solution implementation

Certification

  • Amazon Web Services (AWS) Certified Solutions Architect
  • Certified SAFe 6 Advanced Scrum Master

Timeline

Technical Business Analyst/Agile Scrum Master

Disney
02.2021 - 12.2024

Application Developer

RENT-A-CENTER, INC.
01.2021 - 03.2021

Application Developer

CENTURYLINK
08.2020 - 12.2020

Application Developer

INTERCONTINENTAL HOTELS GROUP
01.2020 - 04.2020

Mobile Architect / Developer

AT&T - Warner Bros
10.2019 - 12.2019

Business Process Architect

WALGREENS BOOTS ALLIANCE, INC.
02.2019 - 09.2019

User Experience Lead

Saudi Aramco
11.2018 - 01.2019

System Analyst

Berkshire Hathaway Inc
09.2018 - 10.2018

System Analyst | Scrum Master

Major Healthcare Corporation
01.2018 - 09.2018

Technical Architect

DEUTSCHE TELEKOM
04.2017 - 11.2017

Data Analyst

Johnson & Johnson
10.2016 - 04.2017

Business Process Analyst

ROYAL CARIBBEAN CRUISES LTD
07.2016 - 09.2016

Application Developer/Team Lead

BARCLAYS
06.2015 - 06.2016

Internal Application Developer

03.2015 - 04.2015

Application Tech Lead

Pioneer Natural resources
01.2015 - 02.2015

Internal Tech Lead

11.2014 - 12.2014

Tech Lead

Dex Media
05.2014 - 08.2014

Application Developer

Dr. Pepper Snapple Group
12.2013 - 04.2014

Bachelor of Science - Computer Science

University of Nairobi

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