Senior Software Developer- Python

Company OverviewInteractive Brokers Group, Inc. (Nasdaq: IBKR) is a global financial services company headquartered in Greenwich, CT, USA, with offices in over 15 countries. We have been at the forefront of financial innovation for over four decades, known for our cutting-edge technology and client commitment.IBKR affiliates provide global electronic brokerage services around the clock on stocks, options, futures, currencies, bonds, and funds to clients in over 200 countries and territories. We serve individual investors and institutions, including financial advisors, hedge funds and introducing brokers. Our advanced technology, competitive pricing, and global market help our clients to make the most of their investments.Barron's has recognized Interactive Brokers as the #1 online broker for six consecutive years. Join our dynamic, multi-national team and be a part of a company that simplifies and enhances financial opportunities using state-of-the-art technology.This is a hybrid role (3 days in the office/2 days remote).About Your TeamThe Financial Crimes Surveillance team develops and maintains sophisticated systems that detect and prevent fraud, market manipulation, and money laundering across Interactive Brokers' global platform. In this role, you'll architect, implement, optimize, and maintain large-scale data pipelines and surveillance models that process massive volumes of financial data. The team consists of software engineers, data engineers, compliance specialists, and data scientists working on mission-critical infrastructure that directly protects the integrity of the financial system.The Scale & ImpactProcess 1+ billion order events and 6+ million trades dailyProtect 4.5+ million client accountsDirect impact on financial security and regulatory complianceWhat Will Be Your Responsibilities Within IBKRTechnical ExcellenceDesign, optimize, and extend transaction surveillance and data pipeline processes to enhance system efficiency, reliability, and scalabilityNavigate seamlessly between strategic, system-level architecture and function-level implementation details of our surveillance system, which orchestrates 150+ processesOptimize data architectures and databases for maximum performance and reliabilityBuild developer tooling to accelerate development workflows and system monitoringEnsure data accuracy, security, and compliance with regulatory standards Ownership and Cross-Functional PartnershipTake ownership of projects and sub-systems from planning through resolution, making impactful decisions on complex technical and business-related questionsCollaborate effectively with quantitative engineers, surveillance model developers, and Compliance stakeholders to translate complex business requirements into scalable designs and processesIdentify project bottlenecks, risks, and limitations; calculate costs; and provide strategic insights to stakeholdersTransform high-level surveillance concepts into production-ready processes that deliver actionable insightsData Architecture & StewardshipOwn and curate dozens of mission-critical datasets that drive surveillance operationsDesign, build, and automate robust data pipelines to support real-time and batch processingDevelop advanced data quality frameworks to proactively identify issues before they impact operationsInnovation & OptimizationContribute to the evolution of coding standards and internal code review processesDrive best practices in data storage, retrieval, governance, and privacy protectionDrive automation of processes and workflows to reduce manual effort and enhance system maintainabilityWhich Skills Are Required5+ years of professional software engineering experience in Python, C++ or Java3+ years of professional experience in Python as a primary language (non-scripting)Extensive experience in Polars, Pandas or NumPy1-3 years of professional experience with Linux operating systemsThorough understanding of databases and SQLExperience with large Python codebasesBachelor's or master's degree in Computer Science, or a related areaHigh attention to detailGood To HaveExperience with data engineering or ETL pipelinesKnowledge of financeKnowledge of C++ or JavaMasters/PhDTo be successful in this position, you will have the following:Self-motivated and able to handle tasks with minimal supervision.Superb analytical and problem-solving skills.Excellent collaboration and communication (Verbal and written) skills.Outstanding organizational and time management skills.Company Benefits & PerksCompetitive salary, annual performance-based bonus and stock grantRetirement plan 401(k) with competitive company matchExcellent health and wellness benefits, including medical, dental, and vision benefits, and a company-paid medical healthcare premium.Wellness screenings and assessments, health coaches and counseling services through an Employee Assistance Program (EAP)Daily company lunch allowance provided, and a fully stocked kitchen with healthy options for breakfast and snacksCorporate events, including team outings, dinners, volunteer activities and company sports teamsEducation reimbursement and learning opportunities