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Jesslin MammenJM

Jesslin Mammen

Data Analyst & Automation Specialist

On-demand
Paris, FR
3-7 years

Average response time: 1 hour

About Jesslin

I'm Jesslin, a data analyst and automation specialist currently completing my MSc in Data Sciences and Business Analytics at ESSEC Business School and CentraleSupélec in Paris.

Before my MSc, I spent 5+ years at United Airlines leading automation and analytics projects that saved over 600 hours annually and identified $12M in operational cost savings. I know how to turn messy data into decisions that actually get used.

What I offer:
• Data cleaning, analysis, and reporting (Python, SQL, Excel)
• Interactive dashboards and visualizations (Power BI, Matplotlib)
• Python automation scripts for repetitive workflows
• Business process documentation and flowcharting

I work cleanly, communicate clearly, and deliver on time. Available for short and medium-term projects until July 2026.

Languages: English (fluent), French (beginner), Hindi (fluent)
  • English

    Native or bilingual

  • Hindi

    Native or bilingual

  • Malayalam

    Native or bilingual

  • French

    Basic

Can work on-site
Paris (up to 50km)

Experience

  • United Airlines
    Senior Analyst, Payroll Support & Data Analytics
    AVIATION AND AEROSPACE
    December 2023 - August 2025 (1 year and 8 months)
    Gurugram, Haryana, India
    • Led automation of employee schedule modifications within a legacy system, saving approximately 600 hours annually and eliminating manual touchpoints across multiple regional teams.
    • Built an HR and Labor Relations dashboard tracking suspensions and associated costs, surfacing $12M in potential savings through actionable insights.
    • Automated recurring payroll processes using SQL, Python, VBA, and UiPath (RPA), improving payment accuracy and ensuring compliance with state regulations.
    • Partnered with stakeholders to build WalkMe-based in-app guidance, accelerating staff adoption of new internal platforms.
    SQL Python RPA Microsoft Excel Microsoft Power BI
  • United Airlines
    Analyst, Payroll Support & Data Analytics
    AVIATION AND AEROSPACE
    December 2021 - December 2023 (2 years)
    Gurugram, Haryana, India
    • Designed and maintained dashboards for airport and technical operations tracking actuals vs. forecast across FTEs, hours, and spend using SQL, Spotfire, and Power BI.
    • Developed automated reports for leadership to monitor policy compliance, system anomalies, staff safety, and cost-saving opportunities.
    SQL TIBCO Spotfire Python Microsoft Excel Data visualization
  • Moody's Risk Management Solutions
    Risk Analyst
    January 2020 - November 2021 (1 year and 10 months)
    Noida, Uttar Pradesh, India
    • Ran quarterly portfolio roll-ups to derive expected loss and real-time marginal risk metrics; delivered insights on loss drivers and distributions to clients.
    • Analyzed client portfolios and computed TVaR, VaR, and Probable Maximum Loss using SQL and proprietary catastrophe modeling tools.

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Education

  • MSc in Data Science & Business Analytics
    ESSEC Business School & CentraleSup´ elec
    MSc in Data Science & Business Analytics
  • MSc in Mathematics
    Christ University
    2018
    MSc in Mathematics

Skill set

Categories