Python/ Full-Stack Developer

We’re seeking a Python Full-Stack Developer to join our client’s Midtown NYC team, supporting a business-critical platform used within the Quantitative Investment Strategies (QIS) group. This person will be responsible for building/maintaining applications across the full technology stack, including Python services, web-based user interfaces, APIs, databases, data-processing components, and system integrations., We’re seeking a Python Full-Stack Developer to join our client’s Midtown NYC team, supporting a business-critical platform used within the Quantitative Investment Strategies (QIS) group. This person will be responsible for building/maintaining applications across the full technology stack, including Python services, web-based user interfaces, APIs, databases, data-processing components, and system integrations.

• Design, develop, enhance, and maintain production-quality Python applications and services.
• Build modular, reusable, and testable software components while improving and maintaining an existing codebase.
• Refactor and modernize legacy applications and scripts to improve scalability, performance, maintainability, and operational stability.
• Participate in technical design discussions, code reviews, testing, deployments, releases, and production support activities.
• Design, build, and maintain web-based user interfaces used by business, operations, and technology teams.
• Develop workflows for data visualization, operational monitoring, process execution, exception management, and user-driven actions.
• Integrate front-end applications with Python services, APIs, databases, and enterprise workflows.
• Enhance and maintain web applications using Python-based frameworks such as FastAPI, Flask, Streamlit, or Quart.
• Apply best practices related to usability, application security, validation, performance, and maintainability.
• Design and develop integrations with internal systems, third-party platforms, and market data providers.
• Build and support REST APIs, GraphQL APIs, database integrations, file-based interfaces, and event-driven messaging solutions.
• Implement data validation, transformation, reconciliation, caching, retry mechanisms, timeout controls, and error-handling processes.
• Develop database access, data transformation, and reporting solutions using SQL, Python, and Pandas.
• Support relational and time-series databases while optimizing performance and data accessibility.
• Build and maintain batch-processing and scheduled workflows, including operational controls, dependency management, restartability, and auditability.
• Collaborate with business users, quantitative teams, support teams, infrastructure teams, and application owners to deliver technology solutions.

• 3+ years of professional software development experience with significant recent hands-on Python development experience, including object-oriented programming, application architecture, package design, and support of production-grade applications and services.
• Experience building and supporting full-stack applications, including web-based user interfaces, backend services, APIs, and database-driven solutions.
• Strong experience designing, developing, and maintaining system integrations using REST APIs, enterprise interfaces, and data-processing frameworks, with the ability to handle data validation, transformation, troubleshooting, and operational support.
• Strong SQL and database experience, including relational and time-series databases, data transformation, and analysis using tools such as Pandas.
• Experience working within large, complex codebases, including debugging, troubleshooting, enhancing existing functionality, and resolving production issues from root cause through long-term remediation.
• Experience implementing automated testing strategies, including unit, integration, API, and regression testing, preferably using pytest or similar frameworks.
• Experience with source control, CI/CD pipelines, release management, automated deployments, and Linux and/or Windows server environments.
• Strong troubleshooting, problem-solving, and production support skills, with the ability to diagnose application, integration, performance, and data-quality issues.
• Strong communication and collaboration skills, with experience partnering with business stakeholders, technology teams, infrastructure teams, and cross-functional partners.
• Preferred experience with Python web frameworks such as FastAPI, Flask, Streamlit, or Quart; modern front-end technologies including React, JavaScript, TypeScript, HTML, and CSS; and tools supporting containerization, observability, messaging, scheduling, and automated deployments.

Access to enroll in healthcare coverage that begins on day-1 of employment!Interested? Apply today!

The company operates in the Financial Services industry in New York.