Lead Fullstack (Go/React) Engineer

Our client, Fortune 500 company is seeking a Lead Fullstack (Go/React) Engineer to serve as the technical visionary for their fraud detection platform, combating insurance fraud through data-driven, AI-enhanced technology. This role is part of a larger strategy to deliver a scalable, configurable, and intelligent platform that exceeds client expectations across a diverse, global client base. This is a fully remote, long-term position with a required overlap of US working hours (2-6 PM CET minimum, 2-7 PM CET preferred) , with occasional in-person team sessions in Prague (roughly once a quarter). Responsibilities Own the technical roadmap for a cutting-edge insurance fraud detection SaaS platform, focused on performance, scalability, and configurability. Lead and mentor a high-performing, full-stack development team, supervising, reviewing, and approving developers' work. Design and build complex, modular platform features, developing backend services in Golang , collaborating on the frontend in React/TypeScript , and managing inter-service communication via gRPC . Own PostgreSQL database management , writing SQL/PL-SQL queries and optimizing for data integrity and performance. Drive the integration of AI-driven features , partnering with data science and analytics teams to enhance fraud detection accuracy and automation. Act as the primary technical liaison across US, EU, and India-based teams, aligning roadmaps and accelerating delivery. Lead code reviews and champion coding standards, security protocols, and documentation across the development lifecycle . Work Conditions Type: Full-time & Long-term contract work Start Date : ASAP Location : Remote (99%) in Europe; must be able to travel freely within Europe for workshops. US Time Zone Overlap : Required ( 2 PM - 6 PM CET ) Contract with European LLC Strong full-stack expertise spanning Golang (backend) and React/TypeScript (frontend) Proven experience leading and mentoring cross-functional, distributed development teams Backend experience with Golang, REST, gRPC, Azure Services, Azure Kubernetes, Azure Redis, Azure Blob, Azure CI/CD/ADO Frontend experience with ReactJS, TypeScript, Tailwind Hands-on experience with PostgreSQL , including complex SQL/PL-SQL queries and performance tuning Strong problem-solving skills, with a track record of resolving critical, client-impacting technical issues Excellent verbal and written communication skills, able to translate technical concepts for varied stakeholders Security Best Practices: Knowledge of API authentication methods such as OAuth and JWT. Ability to participate in the discussions and lead the technical discussions Have a consultancy mindset → always try to find a solution for the client Make decisions about the solution and design