Tim S. Downs Mullen

Scrum Master · Senior Systems Engineer

tim@downsmullen.com · (319) 481-2824 · linkedin.com/in/tim-downs-mullen-0599a050

Servant Leader Velocity +98–115% 2 Patents USMC Veteran

Summary

Results-driven leader with 25+ years across aerospace and financial services. Proven record in Agile/SAFe/Scrum, Lean optimization, and full SDLC delivery. Skilled at coaching high-performing teams, aligning stakeholders, and delivering measurable gains in velocity, predictability, and ROI. Patents in RFID security and automated checklist methods.

Core Competencies

Agile / SAFe / Scrum Lean Improvement End-to-End Delivery Team Coaching Cross-Functional Leadership Process Automation Systems Engineering Security Architecture Program Management

Technical Skills

Languages: Python, .NET, C#, C++, Java, SQL, HTML, XML, UML, ANSI C

Tools: Jira, Confluence, Salesforce, Selenium, MS Project, Visual Studio, Subversion, DOORS, ClearCase, NUnit, AutoCAD, ProEngineer, Adobe

Methods: Agile (SAFe, Scrum, XP, Kanban), Lean, TDD, Full SDLC

Experience

Collins Aerospace — Scrum Master / Software Systems Engineer (2019–2025)

Transamerica / TCS — Agile Coach / Scrum Master (2013–2019)

Rockwell Collins — Lead Project Engineer (2004–2013)

Intermec Technologies — Software Engineer III (2000–2004)

United States Marine Corps — Intelligence Specialist, Corporal (1988–1992)

Education

B.S., Computer Engineering — Iowa State University (Graduated with Distinction, 3.5 GPA)

Download

Download Interview Packet (PDF)