
Juan Luis Martinez
Senior Python Backend Developer | MLOps
Salary / Daily rate
Alcoi, Alicante, Spain
Freelance, open to permanent contract
Skills
Languages
About me
Intro
Seasoned MLOps and Python Developer with 23+ years in tech, specializing in AWS, machine learning, and financial systems. Led successful projects at Zurich Insurance and EUIPO, implementing high-performance ETL pipelines and ML solutions. Expert in building scalable backend systems, crypto trading bots, and AI-driven applications with deep expertise in DevOps, cloud infrastructure, and both SQL/NoSQL databases.
Work experience
MLOps
Zurich Insurance
Mar 2024 - Present
2 years 8 months
Spain · Remote
Senior Python Backend Developer
Adagio Consultores
Feb 2024 - Jan 2025
1 year
Madrid, Spain
Senior python backend developer
Zurich Insurance Company LtdFreelance
Jan 2022 - Dec 2023
2 years
Zürich, Switzerland
Senior python backend developer
EUIPO - European Union Intellectual Property OfficeFreelance
Aug 2021 - Jan 2022
6 months
Alicante, Comunidad Valenciana / Comunitat Valenciana, España · Remote
Responsibilities: ◦ Make demonstration web projects with the machine learning libraries produced from my team and created the infrastructure to deploy it. ◦ Migrate old projects done with Mysql to MongoDB and setup again on Kubernetes. ◦ Create Apache Airflow DAGs ETL pipelines to get EUIPO internal data. ◦ Migrate old projects done with Mysql to MongoDB and setup again on Kubernetes. ◦ Deploy with Bitbucket and Jenkins CI/CD pipeline to Kubernetes (ArgoCD). Achievements: ◦ Integrated Python machine learning libraries with FastAPI and Python Streamlit websites. ◦ Set up and debug project in Jenkins and Kubernetes at the most low level to make it run. ◦ Develop Airflow DAG with git deployment of python libraries on the fly.
Python software engineer
Freelance customersFreelance
Dec 2013 - Jan 2022
8 years 2 months
Alicante · Remote
Responsibilities: ◦ Develop different projects, mainly crypto trading finance bots or ETL pipelines for real time data. ◦ Develop a bunch of serverless Python applications (serverless) in AWS Lambda for Chick-Fil-A a restaurant chain in the USA. ◦ Develop a machine learning program to get gender of Twitter users with a bayesian algorithm based on race, religion and political views. ◦ Develop and setup the environment for horse betting software. Achievements: ◦ Deployed a program that is able to get more than 200 crypto exchanges (with all their assets) in 5 seconds pace to a California client. ◦ Got Yelp Chick-Fil-A all restaurant comments from API and used Sagemaker AI then marked comments as positive, negative or neutral, also discovered all restaurants that has 3 or more FBI sanitary complaints with AWS Redshift. ◦ Created a horse betting software that makes 250 daily calculations with data since 2005 to today in only 1 minute, the client get an Excel file with all calculation results from a Python flask server. ◦ Some of the projects uses Docker or Kubernetes, also I made CI/CD from bitbucket to deploy directly on AWS EC2 or VPS servers.
PHP/Python developer
PractiGo GmbHFreelance
Mar 2011 - Dec 2013
2 years 10 months
Alicante · Hybrid
Responsibilities: ◦ Build a full CRM from scratch for a internship tourism german company in PHP. ◦ Modify osCommerce behaviour for a e-commerce web site. Achievements: ◦ Made the full CRM with a full text search tool. ◦ Setup a Linux server and its services for the CRM as a central server. ◦ Added all company emails with clients to full text search tool. ◦ Connected program invoices with accountability using ODBC on SQL Server. ◦ Managed Bremen office from Spain.
Perl/PHP developer
Vodafone
Sep 2008 - Mar 2011
2 years 7 months
Madrid y alrededores, España · On-site
Responsibilities: ◦ Repair and extend a group of perl stat scripts from log files of all Vodafone’s logs from Spain and Germany phone Internet access. ◦ Reporting to Vodafone’s marketing department directly. Achievements: ◦ Make all the previous program works again. ◦ Added PHP Cacti graphs to show reports results. ◦ Setup a FreeBSD server to store and execute all the scripts and web graphs.
PHP developer
Prisacom
Apr 2007 - Oct 2008
1 year 7 months
Madrid y alrededores, España · On-site
Responsibilities: ◦ Renew and bright main website of Santillana, a popular education website in Spain. ◦ Renew and bright main website of El País del Suscriptor, the main newspaper in Spain. Achievements: ◦ Prisacom has their own PHP framework, learned it myself in only 15 days. ◦ Made an automatic decompressor and deployment of educational contents in Santillana website.
Developer and systems administrator
Viuda de Tadeo Juan, S.A.
Feb 2001 - May 2007
6 years 4 months
Alcoy/Alcoi, Comunidad Valenciana / Comunitat Valenciana, España · On-site
Responsibilities: ◦ Maintain all computer infrastructure on main office and remote offices. ◦ Maintain and create main Informix applications and SCO Unix server. Achievements: ◦ Created perl/Python scripts to get packages data from other companies from email and insert automatically on main Informix application database. ◦ Made the conversion of spanish coin peseta to euro with 100% success, take into account that peseta was always an integer number and euro is a decimal or float. ◦ Setup and maintain mail server and proxy servers on a Linux Debian server. ◦ Connected remote company offices to main office database.
Education
I am 100% self-learner
No grade
1992 - 2011
19 years