About me

Key Account Manager

Builder Mindset | Enterprise Relationship Specialist | Tech-Savvy

I'm an enterprise SaaS professional with a strong background in Key Account Management, business development, and strategic customer growth across fintech, real estate intelligence, and technology markets.

Over the past years, I've managed complex relationships with large enterprise clients — including The Coca-Cola Company, AB InBev, Nestlé, and Walmart — leading high-value commercial discussions, cross-functional projects, and long-term strategic partnerships. My profile combines commercial execution with deep technical fluency, allowing me to navigate both executive conversations and data-driven environments with credibility.

Beyond account management, I naturally operate as a builder and operator. I enjoy creating systems, structuring processes, identifying market inefficiencies, and turning ideas into scalable solutions. I'm particularly motivated by products that solve complex business problems, strengthen decision-making through data, and create long-term value.

Samuel Constantini

Experience

Key Account Manager

Ailet USA
May 2023 – May 2026
  • Led executive-level relationships across a 7-country book of business — Coca-Cola, Walmart, Nestlé, Merck, AB InBev, OXXO
  • Drove +13.3% ARR growth through proactive account planning, consultative selling, and upselling initiatives
  • Reduced churn by 25.2% across enterprise accounts
  • Built 12 performance dashboards in HubSpot for customer health, NPS, CSAT, and growth visibility
  • Implemented AI-driven Python engagement strategies, increasing customer lifetime value by 12+ months

Sales Manager

Wattio
May 2022 – May 2023
  • Owned the full B2B sales cycle from prospecting to closing and onboarding
  • Expanded revenue base by +55%, achieving an average ticket of R$5K MRR per client
  • Led a team of 3 across onboarding and RevOps
  • Utilized Salesforce and HubSpot to manage pipeline and improve forecasting accuracy

Business Development Analyst

ASAAS
May 2021 – May 2022
  • Identified 500+ high-fit prospects with 90%+ ICP match accuracy using NLP and Python
  • Built automated prospecting frameworks and optimized Salesforce Sales Cloud workflows
  • Partnered with SDR, marketing, and sales teams to improve conversion rates and pipeline quality

Skills & Tools

Account Management

Enterprise KAM, Renewal Management, Contract Negotiation, Stakeholder Engagement (C-Suite), Consultative Selling, Churn Reduction

Revenue & Growth

ARR Growth, Pipeline Management, Forecasting, RevOps, B2B Sales Cycle, Upselling & Cross-Selling

CRM & Tech

Salesforce (Sales Cloud, Marketing Cloud), HubSpot, BI Dashboards, Excel (Advanced)

Data & Automation

Python, NLP, AI-driven Engagement, API Knowledge, SaaS Architecture

Languages

EnglishFluent
PortugueseNative
SpanishFluent
GermanIntermediate

Education

B.Sc. Mechanical Engineering

Universidade Federal de Itajubá, Brazil
2009 – 2018

Specialization — Mechanical Engineering

Universität Duisburg-Essen, Germany
2012 – 2014

Specialization — Aerospace Engineering

Universidad Pontificia Bolivariana, Colombia
2011