Technical Integration Lead

Toptal is an exclusive network of the world’s top freelance software developers, designers, finance experts, marketing professionals, product managers, and project managers. We offer freelance opportunities strictly on an independent contractor basis.* We're looking for an experienced Technical Integration Lead to support the first release of a retirement and private wealth portal delivered by a third-party vendor. You'll lead integration planning and technical design, working with business stakeholders, technical teams, and vendors to ensure seamless system connectivity and testing. Key Responsibilities: Define and validate integration designs, workflows, system dependencies, and data mappings. Develop integration specifications, test scenarios, and technical documentation. Guide integrations using MuleSoft, REST APIs, and SFTP. Coordinate with stakeholders and vendors to resolve integration gaps. Support integrations across CRM, Oracle, Workday, BlackLine, Charles Schwab, and external financial institutions. Key Requirements: Proven experience leading complex enterprise integrations as an Integration Lead, Technical Lead, or Integration Architect. Experience with retirement services and private wealth integrations. Strong knowledge of integration architecture, MuleSoft, REST APIs, and SFTP. Ability to translate business requirements into technical designs and test documentation. Experience with insurance-related workflows is a plus. Engagement Details: Location: Remote; North American candidates preferred. Commitment: Full-time (40 hours/week). Duration: Approximately 6–12 months. Interested in contributing to a complex enterprise integration initiative? We'd love to hear from you! *This opportunity is for independent contractors only. We do not support C2C, C2H, third-party employment arrangements, or visa sponsorship.