PRODUCT MARKETING · VERTICAL GTM · SALES ENABLEMENT

I turn complex technology into industry solutions that sales teams can take to market.

HEC Paris MBA candidate with 7+ years across product marketing, sales and strategy in manufacturing & financial services, and freelance LLM evaluation for major AI labs through Outlier (Scale AI).

French & Argentine citizenship · HEC Paris MBA

Gaston Leiva, product marketing professional and HEC Paris MBA candidate

$1.2B

Global segment covered by a 5-year EMEA roadmap

$14M

Pipeline built in 6 months

150+

Salespeople enabled with GTM assets across companies

$104K

Profit as founder from 5 Argentina-Paris trips for 100+ customers

CASE STUDIES

Turning market insight into commercial action

4 case studies show how I developed vertical GTM systems, commercialized technical products, activated sales teams, and improved current LLMs models.

CASE STUDY · AMCOR · VERTICAL GTM

Building a vertical GTM system for a $1.2B segment

Designed a 5-year EMEA roadmap and created segment playbooks, battlecards, launch toolkits and case studies for commercial teams. Separately, identified an unmet fish-market need and led 6 salespeople to build a $14M pipeline in 6 months.

Impact: GTM assets used by 50+ salespeople at Amcor; coordinated 11 EMEA product launches.

Vertical GTM · Sales enablement · Manufacturing

View the Amcor vertical GTM case study

CASE STUDY · AVERY DENNISON · PRODUCT LAUNCH

Commercializing a technical solution across EMEA

Built positioning, pricing and launch tools for ThermaVIP+, a technical packaging solution for COVID vaccine transport, supporting EMEA commercialization.

Impact: Generated $500K in first-year revenue from the EMEA launch.

Positioning · Product launch · Sales enablement

Read ThermaVIP+ case study

CASE STUDY · AVERY DENNISON · SALES ACTIVATION

Activating a sales network for a circular-economy service

Owned AD Circular commercial development in France and enabled existing label-sales teams to introduce the recycling service within their customer relationships.

Impact: Ranked #1 among 12 countries for AD Circular sales performance.

Sales activation · Indirect leadership · Circular economy

Read AD Circular case study

CURRENT AI WORK · OUTLIER / SCALE AI

Evaluating LLM quality

Evaluate and improve LLM outputs across mathematics, reasoning and languages (French, Spanish and English). I evaluated 500+ tasks.

Focus: Identify reasoning and language failures and apply evaluation criteria consistently across three languages.

LLM evaluation · LLM prompting · Error analysis

CORE EXPERTISE

The capabilities behind the outcomes

6 capabilities I use to turn customer and market insight into differentiated propositions, field-ready content and product launches.

01

Vertical GTM

Translate industry needs into prioritized segments, value propositions and actionable launch plans.

02

Positioning and messaging

Turn technical capabilities into differentiated customer propositions and consistent sales narratives.

03

Sales enablement

Build playbooks, battlecards, case studies and launch tools that commercial teams can reuse.

04

Customer and market intelligence

Combine interviews, market data and competitive analysis to guide product and GTM decisions.

05

Product launches

Align Sales, R&D and technical stakeholders to commercialize solutions across markets.

06

Technical storytelling

Translate technical products and concepts into clear narratives for executive, commercial and technical stakeholders.

RELEVANT EXPERIENCE

A career connecting insight, products and growth

Experience across global industrial companies, financial services, entrepreneurship and LLM evaluation.

OUTLIER / SCALE AI

November 2024–Present

Remote · Freelance

Senior Reviewer

Evaluate and improve LLM outputs across mathematics, reasoning, French, Spanish and English.

Focus: LLM model evaluation, error identification and consistent quality assessment.

Amcor

September 2023–June 2025

Paris, France

Marketing Specialist, Meat EMEA

Designed the 5-year EMEA roadmap for a $1.2B global segment, coordinated 11 product launches that took the portfolio to 100% recyclable, and built the playbooks and battlecards the sales team used to sell it.

Impact: Built a $14M pipeline in six months; GTM assets used by 50+ salespeople at Amcor.

Recognition: Selected as Retail Ambassador (20 of 10,000 employees) and presented strategy to Aldi and Leclerc.

RELATED CASE STUDY

Amcor vertical GTM case study

AVERY DENNISON

October 2021–September 2023

Oegstgeest, Netherlands

European Graduate Program, Product Manager and Sales Manager

Worked across product management and sales to commercialize technical packaging and circular-economy solutions across Europe.

Impact: Generated $500K from the ThermaVIP+ launch and drove a no-launch decision that avoided $1M in annual cost.

Recognition: Ranked #1 among 12 countries as French Sales Manager for the AD Circular label-recycling program.

RELATED CASE STUDIES

BOSTIK

September 2020–September 2021

Paris, France

International Product Manager Assistant

Analysed a 100+ SKU portfolio to set pricing for two launches across 40+ countries.

Digital experience: Launched a business-unit web application with an external development agency.

SOCIÉTÉ GÉNÉRALE

September 2018–August 2020

Bayonne, France

Marketing Assistant

Built Excel VBA dashboards that automated performance tracking across 28 retail-banking agencies; the region finished in the national top10.

Impact: Improved management visibility and contributed to a top-ten regional performance ranking.

MUJERES EN PARIS

August 2016–Present

Paris, France · Founder

Founder, Mujeres en Paris

Built and monetized a 180K+ follower audience through content, group travel, partnerships and commercial experimentation.

Impact: Generated $104K in profit from five group trips; pivoted during COVID to virtual tours and 600 branded masks; co-created four events for 122 entrepreneurs.

ABOUT

Industry-grounded product marketing for technical markets

I have spent my career translating technical products, customer needs and market shifts into product strategies, launches, sales tools and commercial opportunities across manufacturing, packaging and financial services. Alongside my HEC Paris MBA, I evaluate LLM outputs through Outlier (Scale AI).

I bring industry context, customer insight and field execution to technical go-to-market problems.

CONTACT

Let’s discuss product marketing, GTM and technical commercialization

I am based in Paris and currently completing my HEC Paris MBA. I am interested in Product Marketing, GTM and strategy internships or full time roles across enterprise technology, AI and industrial markets in Europe.

French & Argentine citizen · HEC Paris MBA