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Jaime Gutierrez Sanchez Senior Python Developer | Tech Lead | COBOL AnalysJG

Jaime Gutierrez Sanchez

Senior Python Developer | Tech Lead | COBOL Analys
  • Suggested rate
    €300 / day
  • Experience8-15 years
  • Response rate100%
  • Response time1 hour
The project will begin once you accept Jaime's quote.
Location and workplace preferences
Location
Lisboa, Portugal
Remote only
Primarily works remotely
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Skill set
Jaime in a few words
Senior Python Developer with over 7 years of
experience in the financial sector, specializing in
backend software development for Machine
Learning applications, with strong knowledge of
OOP and design patterns.

My goal is to continue building efficient and
scalable backend solutions, focusing on Machine
Learning and API development. I am looking for
opportunities where I can apply my skills in Python,
API design, and team leadership, while continuing
to learn and contribute to the company’s growth.
Experience
  • BNP Paribas Personal Finance
    Senior Python Developer & Tech Lead
    October 2020 - Today (4 years and 8 months)
    Lisbon, Portugal
    • Developed Python-based solutions for marketing systems powered by Machine Learning.
    • Utilized Pandas, Polars, Plotly, and Streamlit for data processing and visualization.
    • Designed and implemented new features using OOP principles and design patterns to build scalable and maintainable solutions.
    • Refactored and maintained existing code to improve performance.
    • Created and reviewed unit tests using Pytest.
    • Planned the technical roadmap and refined user stories in collaboration with Product Owners.
    • Built and maintained REST APIs with FastAPI, using Pydantic for data validation.
    • Provided technical leadership, conducted code reviews, and mentored developers.
  • BNP Paribas - Sopra Steria (BBVA) - 2C Consulting (Infocaja)
    COBOL Analyst & Senior Developer
    October 2010 - October 2020 (10 years)
    Bucharest, Romania
    Various consulting firms for clients in the banking sector BNP Paribas - Sopra Steria (BBVA) - 2C Consulting (Infocaja) Oct 2010 – Oct 2020 Madrid - Bucharest
    • Maintenance and development of banking applications using COBOL, JCL, DB2, and CICS.
    • Analysis and resolution of incidents in critical financial environments.
    • Assessment, analysis, and creation of PoCs to demonstrate the feasibility of new implementations.
    • Continuous and corrective support to ensure system stability and efficiency.
    • Task automation and workflow optimization using CONTROL-M.
    • Key participation in large-scale banking integration projects (e.g., Banco Mare Nostrum, LiberBank).
    • On-call technical support for critical systems.
    • Technological environment: TSO (ALNOVA, COBOL, DB2, CICS, JCL, Changeman, CONTROL-M...)
Recommendations
Education
  • Bachelor of Engineering
    Universidad de Extremadura
    2007
    Bachelor of Engineering in Telecommunications,