Hola, my name is

Mariel.

Technology, analytics and optimization enthusiast

About Me

I am an engineer with 8+ years of combined experience in technical consulting, software development and solution implementation. My career has taken me to work in the EMEA, LATAM and NORAM regions for clients in various fields, such as manufacturing, control engineering, digital twins and analytics.

My interests lie in the junction between technology and applied mathematics, with a particular focus on using analytical techniques to make informed decisions on operational challenges. I also enjoy supplementing my skills with new tech stacks for building user-friendly and adaptable software solutions that deliver value.

Latest stacks I have been working with:
  • Java
  • CentOS
  • Docker
  • Podman
  • Python
  • Pop!_OS

Experience

Solution Consultant II - FICO
Aug 2022 - present
  • Implementation of analytics solutions to a range of customers in banking and retail in the LAC region.
  • Responsible for the full implementation cycle: configuration, data migration, development, testing

Tech stack

  • FICO's proprietary software Blaze, Decision Modeler
  • Java
  • Python
Analytics Consultant - Freelance
Nov 2021 - present
  • Development of machine learning and mathematical optimization models, heuristic methods and simulations for solving problems.
  • Data analysis: treatment exploratory data analysis (EDA), data mining, natural language processing (NLP) and visualizations.
  • Lead instructor of short courses on Data Analysis and Data Science in Python aimed at audiences with little to no programming experience.

Tech stack

  • EDA matplotlib, pandas, seaborn
  • LaTeX
  • Machine Learning Naive-Bayes classifier for sentiment analysis
  • NLP NLTK, TextBlob
  • statistics SciPy, statsmodels
  • Ẁeb development Hugo
Research Assistant - The University of Edinburgh
Sep 2021 - Feb 2022

I worked as an Operational researcher in the CReDo project, a digital twin demonstrator that aims to improve climate resilience across infrastructure networks. Collaborated with Lars Schewe and Chris Dent from the University of Edinburgh, and Maksims Abalenkovs from the Hartree Center.

Project deliverables:

  • Development of connectivity models of each network to assess impact and fault propagation.
  • Development of a mathematical model for defining the best
    restoration steps for bringing the most sites to operation.
  • Model deployment in Podman containers.

Tech stack

  • Git
  • LaTeX
  • Optimization Cbc solver
  • Python NetworkX, pandas, Pyomo
  • Podman
Sr Engineer - AspenTech - MX
Jul 2019 - Oct 2020

Led a team of software developers of a dynamic optimiser used for unifying Supply chain management with Process control solutions. Highlights during this tenure are:

  • Developed modifications to the product core maintaining quality and adding value to end-users.
  • Created example applications used in development testing.
  • Mentored team members on their career development and progression.
  • Provided tier-3 support to implementation engineers and end-users.

Tech stack

  • AspenTech's proprietary software DMC3, GDOT, Aspen Unified
  • C#
  • Fortran
  • MS PowerBI
  • Perforce
  • SQLite
Technical Consultant - AspenTech - UK
Jan 2017 - Jul 2019

Transferred to AspenTech’s EMEA headquarter office and became the subject matter expert in Advanced Process Control (APC) in the region.

Highlights during this tenure are:

  • Delivered 1098h of training courses to customers in public classrooms and on-site.
  • Created custom training materials for nonlinear control operations for YASREF (Yanbu site) and LyondellBasell (Wesseling site).
  • Lead a campaign of proactive health check visits to improve satisfaction and accelerate customer success. A few customers that benefitted from these visits were Borealis (Stenungsund site), OMV (Burghausen, Schwechat and Petrobrazi sites) and Sabic (Wilton site)
  • Delivery of consulting services to customers, such as Cepsa (Palos de la Frontera site), Total (Mitteldeustschland site) and Elkem Silicones (Roussillon site).

Tech stack

  • AspenTech's proprietary software Aspen Watch, DMCplus, DMC3, IQ, PCWS
  • OPC OPC Expert, Matrikon OPC Explorer
  • Remote desktop TeamViewer, WebEx
  • Salesforce
  • Virtualization MS Hyper-V, VMWare
Associate Technical Support Consultant - AspenTech - MX
Dec 2013 - Jan 2017

Joined the global team of technical consultants assigned to the Advanced Process Control (APC) suite of products. My responsibilities involved:

  • Troubleshooting typical usage problems
  • Detection of product defects and escalation to R&D and Product Management
  • Delivery of virtual training courses to customers, e.g. Flint Hills Resources, Wacker Chemie
  • Authoring knowledge base articles with technical tips and best practices

Tech stack

  • AspenTech's proprietary software Aspen Watch, DMCplus, PCWS
  • Remote desktop TeamViewer, WebEx
  • Virtualization MS Hyper-V, VMWare

Education

2021
MSc. in Operational Research
The University of Edinburgh
GPA: Merit. 3.7 / 4.0
  • Awarded a scholarship for postgraduate studies by Consejo Nacional de Ciencia y Tecnología (CONACYT).
  • Dissertation: Heuristical methods for the airport slot allocation problem. Supervised by Prof Miguel F. Anjos.
  • Shortlisted for the Sense of Belonging student award 2021, for creating and fostering collaborative networks among the cohort

Tech stack

  • LaTeX
  • Optimization FICO Xpress, NEOS server
  • Python folium, geopandas, Jupyter, matplotplib, NumPy, pandas, Pyomo, seaborn, scikit-learn, SciPy
  • R caret, dplyr, ggplot2
  • Simulation Simul8
2012
BEng. in Chemical Engineering
Universidad Nacional Autónoma de México
GPA: Magna cum laude. 3.7 / 4.0
  • Women in STEM scholarship holder.
  • Concentration in Project Management and Biotechnology
  • Awarded a study abroad scholarship to study at the University of Technology, Sydney, sponsored by Fundación UNAM and The Coca-Cola Company.

Extracurricular Activities

  • Completed 480h of volunteering work in a Teacher’s training program. Delivered lectures, ran tutorial sessions and maintained a website with assignments and revision material for the Superior Algebra course

Tech stack

  • CAD AutoCAD, MS Visio
  • Chemical drawing ChemSketch
  • Data analysis OriginLab
  • LaTeX
  • Mathematics Maple, Mathcad, Polymath
  • Process simulation Aspen HYSYS, Aspen HTFS
Jul 2022 - Dec 2022
Java Programming MOOC
University of Helsinki
  • Self-learning Java using the MOOC from the University of Helsinki
  • My solutions to the exercises can be found on the Java I and Java II repositories

Stack

  • Java
  • Maven
Feb 2022 - May 2022
Full Stack Web development training
LaunchX / Inovaccion Virtual
  • 3 months web development training program sponsored by Microsoft Mexico

Stack

  • HTML
  • CSS
  • JavaScript
  • NodeJS

Projects

Dat Lab
Hugo Javascript Python
Dat Lab
Dat Lab is a website where I publish the content created for the training courses I run. The courses are targeted to people who want to supplement their skills and expand their productivity with programming and technology, yet have little to none programming experience. The courses vary from Data Analysis, Introductory Python to Applied statistics. This site is in Spanish.
Airport slot allocation
Python
Airport slot allocation
A script that assigns a slot to air carrier landing/take-off requests to use runways and terminals, considering capacities and IATA regulations. The assignment is done heuristically using a greedy constructive algorithm, yielding results in seconds. MSc dissertation project.
Facility location for obnoxious sites
Python Pyomo Jupyter notebook
Facility location for obnoxious sites
A mini case study using real data from a waste management system in Central Portugal. The model calculates the number of facilities (transfer stations, recycling centers and incinerators) and the best location using a mixed-integer linear programming (MILP) model.

Get In Touch

My inbox is always open. Whether you are interested in supplementing your operations with analytics or we have similar ideas, feel free to drop a note. mariel [dot] rsal [at] gmail [dot] com