ION · 7 hours ago
Lead Python Developer, Risk Technology
ION Group is seeking a 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 and developing high-quality, scalable microservices in an Agile environment.
AccountingAsset ManagementFinanceFinancial ServicesSoftware
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
Qualification
Required
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
Proven experience with market and credit counterparty risk platforms (mandatory)
Experience developing cloud-native applications on AWS (mandatory)
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
Bachelor's or Master's degree in Computer Science, Engineering, Physics, Math, or equivalent work experience
Benefits
Employees may be eligible for a discretionary bonus, which is determined upon company and individual performance.
Company
ION
ION Group provides solutions for electronic trading, position management, pricing, risk management, and downstream processing for clients.
H1B Sponsorship
ION has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (2)
2024 (1)
2022 (2)
2021 (4)
Funding
Current Stage
Late StageLeadership Team
Recent News
2025-12-19
2025-12-04
2025-12-03
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