Giovanna Castillo
@giovannacastillo
I manage complex contracts, recover revenue, and reduce project risk across telecommunications and financial services.
PeruWhat I'm looking for
At Nokia Solutions and Networks Peru, I managed a US$20MM customer and supplier contract portfolio, resolving claims, overseeing compliance, and coordinating project, legal, finance, and purchasing stakeholders. I helped recover 40% of exposure from a US$30MM Mexico account and recovered US$100k in overdue receivables.
Across telecommunications projects, I’ve negotiated turnkey contract terms, strengthened billing and change-order controls, and protected project margins. I’ve also led external workforce cost initiatives, recruited 200+ 3G and 4G specialists, and delivered measurable savings and risk reductions across Latin America.
Experience
Work history, roles, and key accomplishments
Managed a portfolio of customer and supplier contracts valued at US$20MM, ensuring contractual compliance and resolving disputes. Achieved significant recoveries including 40% of a US$30MM exposure and US$100k in overdue accounts.
Led contractual negotiations in pre-sale phases and managed change orders to improve project margins. Implemented tracking systems and identified financial risks, avoiding losses over US$8MM.
External Workforce Category Manager
Jan 2008 - Jan 2011 (3 years)
Implemented cost reduction initiatives and managed recruitment of external personnel for 3G and 4G technologies. Achieved 5% savings on annual expenditure and established strategic alliances for staffing.
Managed cost structures and budgets for major projects including CLARO and Telefónica Venezuela, achieving high accuracy and profitability. Implemented management control models and risk identification.
Updated cost plans and established billing triggers for the TIM Peru Project. Optimized support processes, reducing deviations from 15% to 1% and achieving 85% on-time collections.
Administrative Assistant
Los Portales SA
Jan 2000 - Dec 2000 (11 months)
Provided administrative support in a real estate company.
Administrative Assistant
Inverfin SA
Jan 1999 - Dec 2000 (1 year 11 months)
Provided administrative support in a financial corporation.
Assistant in the Risk Division
Banex Bank
Jan 1998 - Dec 1999 (1 year 11 months)
Assisted in risk division operations at a Peruvian bank.
Intern – Administration
Prisma Sociedad Agente de Bolsa SA
Jan 1994 - Dec 1998 (4 years 11 months)
Interned in administration at a stock brokerage and financial advisory firm.
Education
Degrees, certifications, and relevant coursework
World Commerce & Contracting
CCM Practitioner, Contract Management
Earned the CCM Practitioner certification in 2022.
Universidad Peruana de Ciencias Aplicadas
Bachelor of Business Administration, Business Administration
2013 - 2018
Completed a Bachelor of Business Administration from 2013 to 2018.
Nokia Solutions and Networks
Lean Six Sigma for Beginners, Lean Six Sigma
Completed the Lean Six Sigma for Beginners certification in 2015.
Nokia Solutions and Networks
Customer Project Management, Change and Claim Process, Project Management
Completed the Customer Project Management, Change and Claim Process certification in 2012.
Nokia Solutions and Networks
Customer Project Management, Processes, Tools & Scheduling and Risk and Quality Management, Project Management
Completed the Customer Project Management, Processes, Tools & Scheduling and Risk and Quality Management certification in 2006.
Tech stack
Software and tools used professionally
Availability
Location
PeruAuthorized to work in
Salary expectations
Social media
Skills
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