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Sr Python Developer

Date Posted: Mar 3, 2026

Job #1686384
Contract
Chicago, Illinois, USA

We have partnered with our client in their search for a Senior Python Developer in Chicago, IL

Responsibilities

  • Develop and deploy Python-based APIs and microservices for machine learning and AI solutions, ensuring scalability, reliability, and maintainability.
    * Collaborate with AI/ML teams to productionize ML models (e.g., regression, classification, NLP, GenAI) and integrate them into business applications.
    * Automate model lifecycle management including versioning, deployment, monitoring, and retraining using MLOps best practices.
    * Implement and enforce data integrity, normalization, and reconciliation processes, leveraging tools like Great Expectations or custom validation logic.
    * Ensure robust testing, monitoring, and observability for all deployed services, including logging, metrics, and alerting.
    * Develop and optimize high-performance SQL and NoSQL queries for large-scale data warehousing and transactional systems.
    * Champion Agile software engineering practices and participate in code reviews, sprint planning, and continuous integration/deployment processes.


Skills Required

  • * Advanced Python: Deep expertise in Python, memory management, and high-performance libraries for processing multi-gigabyte flat files.
    * Data Integrity & Normalization: Experience with financial data types, floating-point arithmetic pitfalls, and building automated reconciliation tools.
    * GenAI Ops: Practical experience hosting and querying private LLMs (e.g., GPT, Opus, Llama 3) for code-translation and automation tasks.
    Experience with MLOps tools (MLflow, Kubeflow, SageMaker, Vertex AI, or similar).
  • Experience in creating and deploying AI Agents.
    * Familiarity with financial data and regulatory requirements.
    * Strong communication and mentoring skills.

Education & Work Experience

  • 5+ years of experience in application development using Python, Scala (and/or Java).
    * 2+ years of hands-on experience with a public cloud platform (AWS, Azure, or Google Cloud)
    * 2+ years of experience with NoSQL databases (e.g., MongoDB) and one relational database (e.g., PostgreSQL, MySQL, Oracle).

Title Senior Python Developer

Location Chicago, IL

Client Industry Fintech

Ref ID 1866384

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