Senior Python Developer, Risk Technology, Mexico City

Company: Ion
Location: Mexico City
Type: full_time
Posted: Aug 19, 2026
Views: 0
The Role
Lab49 is seeking a Mexico city-based skilled Python Developer to work on complex and challenging projects that drive transformative change for top-tier financial services clients. The role involves building next-generation financial systems, developing high-quality, scalable microservices, and creating systems to process various data streams using cutting-edge technologies. Operating in an Agile environment, this position requires strong expertise in Python, experience with market and credit counterparty risk platforms, and proficiency in developing cloud-native applications on AWS.

RESPONSIBILITIES:

  • Develop scalable Python-based microservices to process data streams using streaming, messaging, and REST technologies.
  • Design and implement robust solutions for market and credit counterparty risk platforms.
  • Utilize advanced Python features, such as context managers, decorators, and descriptors, to build efficient and maintainable code.
  • Architect and implement solutions using Consul, Docker, Kubernetes, Kafka, and Spark.
  • Collaborate with cross-functional teams in an Agile environment to deliver high-quality financial systems.
  • Create and optimize database models for SQL, MongoDB, and key-value stores.
  • Build and maintain testing frameworks using Behave and PyTest to ensure software reliability.
  • Design and implement asynchronous operations, multithreading, and multiprocessing in Python.
  • Develop and deploy cloud-native applications in AWS environments.
  • Lead the design and integration of messaging, streaming, and REST APIs.
  • Ensure high-performance, scalable solutions with consistent deployment processes.
  • Be present at the office in Mexico City 1 day per week or more if required

    • REQUIRED SKILLS AND EXPERIENCE:

  • 8+ years of commercial-grade software development experience with complex applications.
  • Strong expertise in Python 3.4+, including advanced language features, asynchronous operations, and OOP/functional programming principles.
  • Experience developing cloud-native applications on AWS.
  • Experience in capital markets, asset classes
  • In-depth knowledge of microservices architecture and data modeling.
  • Expertise in messaging, streaming, and REST API development.
  • Familiarity with tools like Consul, Docker, Kubernetes, Kafka, and Spark.
  • Proficiency in Agile development methodologies.
  • Excellent spoken and written English (C1+)
  • Excellent communication and interpersonal skills
  • Bachelor's or Master's degree in Computer Science, Engineering, Physics, Math, or equivalent work experience.

    • DESIRED SKILLS AND EXPERIENCE:

  • Proven experience with market and credit counterparty risk platforms is highly desirable
    • Lab49/ION is committed to maintaining a supportive and inclusive environment for people with diverse backgrounds and experiences. We respect the varied identities, abilities, cultures, and traditions of the individuals who comprise our organization and recognize the value that different backgrounds and points of view bring to our business.
    Lab49/ION adheres to an equal employment opportunity policy that prohibits discriminatory practices or harassment against applicants or employees based on any legally impermissible factor.
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    About the Company

    Name: Ion

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