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Ryan Holzer

Staff Software Engineer at Corteva Agriscience
Intro Book
Seasoned full-stack developer delivering robust web applications.
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Location
Norwalk, Iowa, United States, US
Languages
  • English Native or bilingual proficiency
Skills
  • Web Development
  • Css
  • Actionscript
  • Digital Marketing
  • Javascript
  • Show all
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Bio

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Topline AI
Ryan Holzer is a seasoned full-stack web developer with expertise in mobile applications, digital marketing, and user interface design. He has over 10 years of experience in the industry, with a strong background in languages such as HTML, CSS, JavaScript, and mobile development using iOS and Android. Ryan has worked with various companies, including Corteva Agriscience, Granular, and Meredith Corporation, and has a degree in Communication Design from Wartburg College.

Credentials

  • Shaping up with Angular.js
    Code School
    Mar, 2016
    - May, 2026
  • Staying Sharp With AngularJS
    Code School
    Mar, 2016
    - May, 2026
  • HTML5 & Hybrid Badge
    Salesforce Trailhead
    Jan, 2016
    - May, 2026
  • Mobile Basics Badge
    Salesforce Trailhead
    Jan, 2016
    - May, 2026
  • Native iOS Badge
    Salesforce Trailhead
    Jan, 2016
    - May, 2026
  • Offline Management Badge
    Salesforce Trailhead
    Jan, 2016
    - May, 2026
  • The Complete iOS 9 Developer Course - Build 18 Apps
    Udemy
    Nov, 2015
    - May, 2026
  • Up and Running with Node.js
    Lynda.com
    Nov, 2015
    - May, 2026
  • Agile Project Management
    lynda.com
    Jul, 2015
    - May, 2026
  • Captivate 8 Essential Training
    lynda.com
    Jul, 2015
    - May, 2026
  • Foundations of Programming: Test-Driven Development
    lynda.com
    Jul, 2015
    - May, 2026
  • Building a Note-Taking App for iOS 8
    lynda.com
    Jan, 2015
    - May, 2026
  • iOS App Development with Swift Essential Training
    lynda.com
    Jan, 2015
    - May, 2026
  • Swift Programming Language First Look
    lynda.com
    Jan, 2015
    - May, 2026
  • iOS 8 New Features
    lynda.com
    Dec, 2014
    - May, 2026
  • Introduction to Sprite Kit with iOS7 and Xcode 5
    Udemy
    Mar, 2014
    - May, 2026
  • Titanium Certified Developer
    Appcelerator
    Nov, 2013
    - May, 2026
  • Foundations of UX: Multidevice Design
    Lynda.com
    May, 2016
    - May, 2026
  • Foundations of UX: Prototyping
    Lynda.com
    May, 2016
    - May, 2026
  • Planning a Career in User Experience
    Lynda.com
    May, 2016
    - May, 2026
  • UX Design Techniques: Ideation
    Lynda.com
    May, 2016
    - May, 2026
  • UX Design Techniques: Overview
    Lynda.com
    May, 2016
    - May, 2026
  • 2019 Apple WWDC Conference
    Apple
  • Data Management Badge
    Salesforce Trailhead
  • Data Modeling Badge
    Salesforce Trailhead
  • JavaScript Road Trip Part 1
    Code School
  • JavaScript Road Trip Part 2
    Code School
  • JavaScript Road Trip Part 3
    Code School
  • Salesforce Platform Basics Badge
    Salesforce Trailhead

Experience

  • Corteva Agriscience
    • Johnston, Iowa, United States
    • Staff Software Engineer
      • Jan 2023 - Present
      • Johnston, Iowa, United States

      Granular become a brand within Corteva at the end of 2022. This change resulted in minor internal reorganization.

  • Granular
    • United States
    • Farming
    • 100 - 200 Employee
    • Staff Software Engineer
      • Sep 2021 - Jan 2023

    • Senior Software Engineer II
      • May 2018 - Sep 2021

      Mobile software engineer focusing on native development with iOS and Android. This position is a continuation of my time with DuPont Pioneer as Dow/DuPont merged to form the company Corteva. During that time, Granular was formed as part of Corteva.Responsibilities: • Strong knowledge of IOS and/or Android operating systems• Development of native mobile solutions (iOS, Android)• Swift• Java • Kotlin• Xcode and Objective-C familiarity• Android Studio• Automated testing, Unit, Integration, E2E• Version control with Git• CICD with Jenkins & Bitrise• Fastlane

  • DuPont Pioneer
    • Mobile Domain Architect
      • Feb 2017 - May 2018

    • Software Developer
      • Feb 2017 - Mar 2017

      My contract with Aureon was converted to a full-time position with DuPont Pioneer.Responsibilities: • Strong knowledge of IOS and/or Android operating systems• Development of native and cross-hybrid mobile solutions (iOS, Android, Xamarin Forms)• Swift• Java• Xcode and Objective-C familiarity• Android Studio• Automated testing, Unit, Integration, E2E• Version control with Git

  • Aureon
    • Johnston, Iowa
    • Mobile Developer
      • Jun 2016 - Feb 2017
      • Johnston, Iowa

      Aureon is a business solutions provider that placed me at Dupont Pioneer as a Mobile Development contractor.Responsibilities: • Strong knowledge of IOS and/or Android operating systems• Development of native and cross-hybrid mobile solutions (iOS, Android, PhoneGap, Xamarin Forms)• Swift• Xcode and Objective-C familiarity• Automated testing, Unit, Integration, E2E• Version control with Git and SVN

  • Two Rivers Marketing
    • Des Moines, Iowa Area
    • Interactive Developer
      • Sep 2011 - Jun 2016
      • Des Moines, Iowa Area

      Two Rivers Marketing is a full service marketing agency focused on providing strategies and digital solutions for its clients. Two Rivers Marketing stays atop industry trends, in-touch with new technologies and platforms, and well-versed in all things that might drive measurable results.Responsibilities: • Design and develop iOS and Android mobile applications.• Customer facing user interface design and front-end development, including HTML and CSS development within responsive web design framework.• Website, application, and email design concept development, and implementation.• Assist in project scoping and planning activities.• Translate end-user requirements and objectives into experience design, wire frames, interactive design, graphics/branding, etc. • Collaborate as part of an integrated, cross-functional team.• Create scalable and reusable code adhering to industry standards and best practices.• Stay up-to-date and maintain a high level of expertise in digital technologies and marketing trends.• Provide technical leadership for client proposals, mobile applications, and emerging technologies.

  • QA Graphics
    • Ankeny, IA
    • Lead Flash/Flex Developer
      • May 2011 - Sep 2011
      • Ankeny, IA

      QA Graphics provides comprehensive graphic outsourcing and creative design services. QA Graphics also develops an Energy Efficiency Education Dashboard (EEED), solution which can be used to display a building’s energy efficiencies and educate others about what makes a building sustainable. Responsibilities: • Designed and developed a new framework that utilizes reusable AS3 OOP code for both Flash and Flex. • Implemented and managed version control software. • Provided leadership and expertise with existing QAG applications and emerging technologies. • Designed, developed, and maintained Flash and Flex components that integrate historical data provided from QAG gateway devices. • Documented procedures and best practices for all aspects of the development process.

  • Meredith Corporation
    • Des Moines, IA
    • Systems Engineer Rich Media
      • Oct 2008 - May 2011
      • Des Moines, IA

      Meredith is one of the nations leading media and marketing companies with businesses centering on magazine and book publishing, television broadcasting, integrated marketing and interactive media. Responsibilities: • Built web applications for www.bhg.com, www.parents.com, and all other Meredith supported web sites. • Thought proactively from a customer perspective by proposing efficiencies when working on projects. • Developed high quality, well documented system code based on requirements developed in conjunction with application experts in Interactive or from other departments within the company. • Acted as a technical consultant to other departments on emerging technology. • Conducted Rich Media code reviews and unit testing.

  • Quality Attributes Software
    • Ames, IA
    • Application Developer
      • Aug 2007 - Oct 2008
      • Ames, IA

      QAS is a software company immersed in the Cleantech and Green Building industries. QAS develops enterprise intelligent building software solutions that include energy monitoring & verification, ongoing commissioning and renewable energy. Responsibilities: • Designed and developed reusable OOP classes and/or project-specific Flash/Flex work. • Provided Flash, HTML, and JavaScript maintenance/repairs using new and existing Flash projects. • Communicated with team members in efforts to create reusable ActionScript 3.0 Flash/Flex components. • Evaluated projects and acted as Flash team lead to determine appropriate use of reusable code versus customized code. • Converted Actionscript 2.0 flash files to system compatible Actionscript 3.0 Flash and Flex components. • Documented enhancements and updates to procedures in the company’s Wiki. • Mentored one intern and three co-workers with Flash, Flex, and HTML/CSS.

  • Studio One
    • Des Moines, IA
    • Senior Developer
      • 2006 - Aug 2007
      • Des Moines, IA

      Studio One was a start-up company designed to provide a one-stop shop for all photographers. The company goal was to provide image storage in addition to all print solutions for professional photographers. Responsibilities: • Created the Studio Assist web application from inception with ColdFusion and Flex. • Built image upload application in Flex that successfully manipulated images and saved information to a SQL database using ColdFusion components. • Managed SQL database architecture and developed all end user applications to interact with dynamic content using ColdFusion, HTML, JavaScript, CSS and Flash. •Interacted with clients to gain feedback on modifications and enhancements to the company web application.

  • Wells Fargo
    • West Des Moines, IA
    • Cold Fusion Contractor
      • 2006 - 2006
      • West Des Moines, IA

      Responsibilities:• Converted online learning courses from a pre-existing system to a new learning management system using JavaScript and HTML. • Maintained a management system which monitored conversion progress. • Effectively problem solved ColdFusion and Javascript program errors and researched alternate solutions. • Assessed technology opportunities and ensured departmental management was consistent with strategy recommendations.

  • FedEx Express
    • Memphis, TN
    • Sr. Business Systems Analyst
      • Jul 2005 - 2006
      • Memphis, TN

      Responsibilities:•Planned and managed projects utilizing best practice methodologies in SQL and Oracle to ensure customer satisfaction, project timeliness and maximum effectiveness. • Assessed technology opportunities in ColdFusion, Flash, and CSS to ensure departmental management was consistent with strategy recommendations. • Provided decision support for departments by constructing analytical capabilities and management information systems. • Recorded a specifications document and ensured it was in compliance with IT standards, procedures, and methodologies. • Facilitated meetings with system users and assisted in data creation and client processes • Designed, developed, and maintained a new intranet web site using ColdFusion, Flash, CSS, JavaScript and SQL.

  • Allied Insurance a Nationwide Company
    • Des Moines, IA
    • Software Developer - Cold Fusion Contractor
      • 2004 - Jul 2005
      • Des Moines, IA

      Responsibilities:• Responsible for retrieving, verifying and searching submitted VIN’s using ColdFusion, SQL, and JavaScript. • Created JavaScript and ColdFusion logic that insured valid information submission. • Provided HTML, CSS, and layout expertise for new insurance agent center screens. • Designed, coded, tested, debugged, documented and implemented complex ColdFusion applications according to standards.

  • Iowa Bankers Insurance and Services, Inc.
    • Johnston, IA
    • Interface Designer/Graphic Specialist
      • 2001 - 2004
      • Johnston, IA

      Responsibilities:• Designed, developed, and maintained the Iowa Bankers Association web site using HTML, CSS, and Flash. • Created Microsoft Access database driven content using ColdFusion and Dreamweaver. •Developed rich internet applications with the use of Flash and ColdFusion • Incorporated web based Flash components for advanced registration forms. • Provided member banks and strategic partners with web services and DNS support. • Created high quality original artwork for marketing, educational, and other promotional materials. • Assisted the Marketing Communications VP in promoting IBA and affiliate web sites

Education

  • 1997 - 2001
    Wartburg College
    Bachelor of Arts (BA), Communication Design

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Industry Focus. “Computer Software”

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