Senior Engineer ContractorSeeking a senior engineer contractor with strong GraphQL expertise and deep frontend experience in ReactJS, Next.js, and React Native. This role will focus on GraphQL integration, best practices, and query optimization, while also contributing to frontend application development. The candidate will help define and document GraphQL standards to improve consistency, performance, and developer experience across teams.Responsibilities include:Design and implement GraphQL queries and integrations for frontend applicationsOptimize data fetching, performance, and API consumption patternsDefine, document, and promote GraphQL best practices and standards across teamsContribute to improving GraphQL usage patterns, governance, and consistencyBuild and maintain modern web applications using ReactJS and Next.jsDevelop mobile features using React NativeIntegrate frontend applications with GraphQL and REST APIsCollaborate with backend teams for seamless data flow and system integrationParticipate in code reviews, sprint planning, and agile ceremoniesTroubleshoot and resolve production issues; support operational stability