Open to opportunities

Johan Castillo User

@johancastillova

Executive Assistant & Accounting student. Expert in AI. Optimized workflows, reducing workload by 30% and boosting productivity by 50%.

Venezuela

Message

What I'm looking for

I am looking for a role where I can leverage my expertise in AI-driven workflow optimization and strategic communication to drive measurable results. In my current experience as a Team Lead, I’ve successfully reduced executive workloads by 30% and boosted team productivity by 50% through process automation and agile frameworks.

Results-driven Executive Communications Assistant & Public Accounting student with a proven track record of optimizing executive workflows through AI integration (Claude, Gemini, ChatGPT). Currently serving as a Team Lead and digital proxy for a CEO of a 10+ brand holding, where I successfully reclaimed 30% of executive weekly time and boosted departmental efficiency by 50% via Trello-based agile frameworks.

Expert in managing complex digital ecosystems, financial governance, and market expansion—consistently delivering 20+ qualified leads monthly. I combine technical proficiency in Salesforce and ERP systems with a C2 Proficient English level to provide high-level strategic support. My focus is simple: automating the routine to prioritize high-value decision-making.

Experience

Work history, roles, and key accomplishments

Current

Executive Communications Lead

Current

Grand Teton Professionals LLC

Dec 2025 - Present (2 months)

Serve as digital proxy for the CEO of a 10+ brand holding, optimizing communications to reclaim 30% of the CEO's weekly high-value time and migrating departmental workflows to Trello to boost efficiency by 50%. Lead a two-person communications unit and produce executive briefs for rapid decision-making.

Trello Workflow Design Stakeholder Management Team Leadership Salesforce AI Tools (Claude Gemini)Transcription (Tactiq)Executive Communication

Administrative Operations Assistant

Jesus Alcalá - Freelance Motion Designer

Nov 2022 - Nov 2025 (3 years)

Managed market research and outreach that generated 20+ qualified leads per month, maintained digital portfolios and social media presence, and oversaw client onboarding communications to ensure seamless client lifecycle management.

Lead Generation Market Research Client Onboarding Social Media Management Portfolio Management Email Communication CRM Outreach

Administration & Finance Intern

Albatros Airllines C.A.

Feb 2022 - Aug 2022 (6 months)

Financial Governance: Executed bank reconciliations for corporate payroll with absolute
accuracy in financial reporting.

ERP Proficiency: Utilized the SAFIRO financial system to process invoices and audit
accounts payable.

Invoice Processing Invoice Management Bank Reconciliation Email Support Email Communication Payroll Payment Processing Payroll Management Invoice Review Invoice Validation Invoicing Invoice Approvals Administrative Support Administrative Assistant Excel Excel Sheets Support Support Ticketing Systems

Education

Degrees, certifications, and relevant coursework

University of Carabobo

Public Accounting, Public Accounting

2024 -

Currently pursuing a degree in Public Accounting at the Faculty of Economic and Social Sciences. This program focuses on comprehensive accounting principles and practices.

I.D Pablo VI

Mid-level technical qualification, Financial Administration

Completed a Mid-level technical qualification in Financial Administration. The curriculum provided foundational knowledge and practical skills in financial management.