DARIO ARTURO BALLESTEROS VIDAL

Customer Experience & Data Analyst

Actively looking · Member since 17 Sep 2026

Message

Location: Barcelona, Spain

Desired salary: Unspecified

Work preference: Remote Only / Full Time

Experience level: Mid

About

Professional summary

I am a Customer Experience and Data Analyst with more than four years of experience connecting CX metrics, including CSAT, CES, and NPS, to measurable business outcomes in B2C and B2B environments.

I use SQL, Python, R, spreadsheets, and BI platforms to analyze customer feedback, operational performance, and journey friction points. I am comfortable using AI-assisted workflows for complex queries and exploratory analysis while validating outputs manually.

My background includes Voice of Customer strategy, journey mapping, quality assurance, KPI and OKR design, reporting automation, and process improvement. I focus on translating data into practical recommendations for operational and business teams.

At Kueski, I improved feedback delivery, Close the Loop prioritization, survey response rates, reporting efficiency, and customer-service outcomes. My work supported sustained high CSAT and NPS results, improved first-contact resolution, and reduced recontacts.

I have six years of remote-work experience collaborating with distributed, cross-timezone teams. I am open to international remote opportunities and bring a business-oriented communication style, strong documentation habits, and a fast-learning mindset.

Tech stack & tools

Working toolkit

Collaboration

Jira

Marketing and Sales Tools

Salesforce

Experience

Career history

Customer Experience / Data Analyst Kueski

Aug 2023 – May 2026

Analyzed 200 to 500 customer satisfaction surveys per day and delivered daily, weekly, and monthly insights to responsible teams. Built statistical and AI-assisted analysis models to identify customer-journey friction points, reduce churn, and support profitability decisions.

Automated Close the Loop prioritization, evaluation formats, reporting, survey triggers, and spreadsheet workflows. Increased Close the Loop efficiency by 50%, improved B2B survey response rates by up to 50%, and reduced report update time by 70%. Led Voice of Customer and Journey Mapping initiatives, designed CX KPIs and OKRs, and delivered interactive dashboards and AI-generated reports. Sustained B2B CSAT above 90%, B2C NPS above 65, key-merchant NPS at 70, and improved FCR by 30%.

Quality Assurance Specialist Kueski

Dec 2019 – Aug 2023

Conducted quality audits for more than 50 agents across B2C and B2B operations, including customer service, collections, back office, fraud, social media, merchant support, onboarding, technical support, sales, and marketing. Redesigned case-selection methodology using satisfaction-survey insights, reducing weekly evaluated ticket volume from 200 to 100 while preserving impact.

Designed and standardized quality formats and criteria that improved CSAT by 15% and increased evaluation consistency. Documented internal B2B service processes to improve response times and operational efficiency, and delivered individualized feedback and coaching that achieved zero error recurrence for coached agents for at least three consecutive weeks.