Summary
Overview
Work History
Education
Skills
Relevant Course Work
Languages
Timeline
Generic
Oliver Grannis Pflaum

Oliver Grannis Pflaum

New York

Summary

Organized technology professional, proficient in QuickBooks, Microsoft software, coding languages, and ArcGIS. Experienced in both technical and social skills. Expert public speaker with experience leading conferences with hundreds of participants.

Overview

3
3
years of professional experience

Work History

Bookkeeper/Driver

Glencadia Dog Camp
09.2024 - Current
  • Maintained accurate financial records and reconciliations using QuickBooks and Zoho, ensuring compliance with NY accounting standards.
  • Prepared monthly financial reports to inform strategic budget decisions.
  • Drove Large 16 foot Sprinter Van in NYC Area to pick up and drop off dogs

GIS Analyst

Environmental Defense Fund
01.2025 - 05.2025
  • Partnered with the Environmental Defense Fund (EDF) to develop GIS-based tools identifying affordable housing locations in North Carolina while safeguarding wetlands, biodiversity, and flood-prone zones.
  • Led a team using ArcGIS Pro and Python to conduct multi-layer spatial analyses integrating climate adaptation, infrastructure resilience, and environmental justice, to advocate housing policy for 9 North Carolina counties.
  • Delivered policy-relevant, data-driven recommendations to support sustainable housing development strategies balancing environmental sensitivity with community needs.
  • Applied advanced geospatial methods to inform state and local planning decisions, strengthening long-term resilience in vulnerable communities.
  • Developed Excel-based model to determine development potential while protecting wetlands and avoiding flood zones, providing policymakers with actionable tools.

Director

Columbia SIPA
09.2023 - 05.2024
  • Directed a nonprofit educational organization serving hundreds of underprivileged high school students in the New York City area through free Model UN conferences and teaching programs.
  • Oversaw multiple committees of Columbia undergraduates, managing logistics, curriculum design, and outreach to schools.
  • Developed and implemented educational curricula tailored to partner schools’ needs, strengthening students’ debate, public speaking, and critical thinking skills.
  • Managed organizational strategy, budgeting, and long-term program sustainability, while upholding CESIMS’ philanthropic mission.
  • Collaborated with school administrators and NYC education stakeholders to expand program access, fostering equitable educational opportunities for underserved students.

Head Intern

Shaun Abreu's Constituent Services
05.2023 - 09.2023
  • Managed high-volume constituent communications, addressing issues related to housing, public benefits, and city services.
  • Assisted constituents in navigating NYC agencies, resolving cases involving tenant rights, social services, and community resources.
  • Designed and implemented new tracking workflows that reduced case resolution time.

Education

BA - Sustainable Development

Columbia University
New York
05-2025

Skills

  • Technical: ArcGIS Pro, ArcGIS Online, Python, R, Java, C#, Microsoft Excel
  • Analytical: Data modeling, quantitative analysis, environmental policy research, public speaking
  • Languages: German (Advanced)
  • Quickbooks
  • Accounting and bookkeeping

Relevant Course Work

Geographic Information Systems for Sustainable Development, Big Data With Python, Environmental Policy and Governance, Global Politics of Climate Change, Practicum in Innovative Sustainability Leadership, Workshop in Sustainable Development, Challenges of Sustainable Development, Energy Law, Cities and Sustainability, Earth Resources and Sustainable Development

Languages

German
Professional Working

Timeline

GIS Analyst

Environmental Defense Fund
01.2025 - 05.2025

Bookkeeper/Driver

Glencadia Dog Camp
09.2024 - Current

Director

Columbia SIPA
09.2023 - 05.2024

Head Intern

Shaun Abreu's Constituent Services
05.2023 - 09.2023

BA - Sustainable Development

Columbia University
Oliver Grannis Pflaum