Resume - Hi, I'm Sebastian Marrero

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Experience

Nomura Logo Nomura Securities – Instinet Technology Solutions Analyst

Jul 2023 – Nov 2025 · New York, NY

  • Leading performance testing sprints with product/dev teams to improve trading platform reliability and UX
  • Managing onboarding for 40+ electronic market connections, generating $244K+ in recurring revenue
  • Building Tableau dashboards to monitor algorithm performance and connectivity metrics
  • Spearheading A/B testing for a trading network monitoring tool, improving response time to client network issues by 60%
  • Analyzing client-reported issues to inform system enhancements and accelerate resolution timelines
  • Translating technical troubleshooting into Jira action items and Confluence guides for team-wide use

Castle Placement Logo Castle Placement — Analyst (Part-Time)

Aug 2022 – Dec 2022 · Remote

  • Sourced and profiled $812M in Canadian agritech deals for capital raising
  • Conducted private market research using PitchBook and CapIQ to create investor playbooks for VC and PE clients

Bernstein  Logo Bernstein — Private Wealth Management Intern

Jun 2022 – Aug 2022 · Washington, DC

  • Assisted advisors managing $1.6B AUM across 1,500 private clients
  • Forecasted wealth scenarios based on income, taxes, and expenses for HNW individuals
  • Conducted investment research and due diligence on private equity, credit, and impact products
  • Identified strategic partners to assist entrepreneurs during cashflow events in client lifecycle

BioXFEL Logo BioXFEL NSF Science & Technology Center — Research Intern

May 2020 – Jul 2020 · Houston, TX

  • Composed a research grant proposal resulting in a $6,000 stipend acquisition across 375 contact hours
  • Conducted independent research on SARS-CoV-2 protein chemistry and performed experimental processes of crystallography in collaboration with graduate school students and senior researchers at Rice University
  • Attended and presented in faculty meetings on various research topics pertaining to the objective of the research grant

NSF Logo National Science Foundation — LSAMP Research Intern

Feb 2020 – May 2020 · Houston, TX

  • Composed a research grant proposal resulting in a $1,250 stipend acquisition across 60 contact hours
  • Collaborated with senior faculty to present research on plastic chemical composition and methods to optimize pollution regulation
  • Operated manufacturing equipment technologies such as 3D-printing and laser engraving to make project deliverables
  • Coordinated a team effort to develop inventive solutions to plastic pollution prevention and reduction

Education

Vanderbilt Vanderbilt University — B.A. in Economics

Aug 2021 – May 2023 · Nashville, TN

  • Dean’s List: Fall 2021, Fall 2022, Spring 2023
  • Relevant Coursework: Economics of Risk, Applied Python Programming, Business Development, Negotiation, Financial Management

HCC Houston Community College — A.S. in Engineering Science

Aug 2019 – May 2021 · Katy, TX

  • Dean’s List: Fall 2019, Spring 2020
  • Relevant Coursework: Calculus I & II, Physics I, Programming in C++, Engineering Management

Leadership & Activities

Vice President – Kappa Sigma, Vanderbilt IFC
Dec 2021 – Dec 2022

  • Elected to lead biweekly interfraternity meetings and coordinate campus-wide initiatives

Excel Modeling Club – Participant
Fall 2022

  • Selected from 90+ applicants for an 8-week intensive on financial modeling and valuation (DCF, Comps, Statements)

Vanderbilt Business Review – Writer
Feb 2022 – May 2023

  • Published articles on international economic policy, globalization, and development

Skills & Tools

Languages: Python, SQL, R
Data Tools: Jupyter, Tableau, MySQL, PostgreSQL, pgAdmin, Excel
ML & Analysis: pandas, NumPy, scikit-learn, matplotlib, seaborn, TextBlob
Workflows: Agile, Jira, Confluence, Git, GitHub, Salesforce CRM
Certifications: SIE, Series 7, 63, 57
Other: Fluent in Spanish


Awards

  • Western Colorado Community Foundation (Faye Shofner Talley, Marge Miller Scholarships)
  • Tulsa Community Foundation (NGL Energy Partners Dependent Scholarship, 2021–2022)
  • Saccomanno Higher Education Foundation Scholarship (2019–2020)