Java Lead Architect – React Front End (Ad-Tech Domain) Lead the architecture, design, and development of enterprise-scale React.js applications for digital marketing and advertising platforms supporting high-volume customer engagement. Design and implement ad-tech integrations including Google Ads, campaign management platforms, audience targeting, ad serving, tracking, and analytics solutions. Provide architectural leadership for Java-based backend systems and React frontend applications within a fast-paced financial services environment. Develop scalable solutions for real-time campaign delivery, ad personalization, customer acquisition, and marketing performance optimization. Collaborate with digital marketing, product, analytics, and engineering teams to align technology solutions with business and customer engagement goals. Ensure applications meet enterprise standards for security, scalability, performance, compliance, and reliability expected in regulated financial domains. Architect and integrate REST APIs, third-party marketing platforms, customer data platforms (CDP), and analytics tools. Lead modernization initiatives involving microservices, cloud-native architecture, and modern frontend frameworks. Establish technical standards, frontend architecture best practices, CI/CD processes, and development governance. Mentor engineering teams and provide hands-on leadership in React.js, Java, microservices, and ad-tech platform integrations. Experience working in advertisement technology, digital marketing ecosystems, customer targeting platforms, or campaign analytics environments is highly preferred. Prior experience supporting enterprise-scale platforms for banking, payments, fintech, or customer engagement solutions is a strong plus.