Teams at Interactive Brokers

Conduct end-to-end application penetration testing across web, API, and mobile applications using black-box and white-box methods. Perform manual secure code reviews, trace vulnerabilities to exploitable impact, develop proof-of-concepts and automated security tooling, validate remediation, and produce technical reports. Mentor junior security professionals and contribute to AppSec methodology. Red team, mobile security, compliance, and exploit development experience are preferred.

Analyzes and reconciles corporate action information, company records, clearinghouse and bank data. Collects and processes client instructions, communicates with internal and external stakeholders, operates proprietary systems, supports system enhancements, tests functionality, and resolves deadline-sensitive shareholder service issues. The role focuses initially on proxy and shareholder services across North American, European, and APAC markets, with cross-training in bankruptcy and class actions.

Investigates and resolves client inquiries involving margin, liquidations, trade cancellations, order execution, financial products, and exchanges. Provides support through telephone, tickets, and chat while educating clients on trading platforms. Coordinates with client service, programming, clearing, compliance, and other global teams. Reviews systems and procedures, recommends enhancements, and contributes to client service policies and technology improvements.