Software Engineer/Fullstack (Tangerang)

Client : Information Technology - Software Development Location : Karawaci, Tangerang, Indonesia Working arrangement : Full WFOEmployment status : Contract PKWT 12 Months under Phincon (extendable)RequirementsAt least 5+ years of experience as a Senior Software Developer (Fullstack).Strong proficiency in JavaScript, including its syntax and core features.In-depth knowledge and hands-on experience with Frontend JavaScript frameworks such as ReactJS or VueJS.Expertise in Backend development using Node.js (ES6 or TypeScript) and frameworks such as ExpressJS, GraphQL, or AdonisJS.Experience working with microservices architecture, message brokers, and unit testing (preferred).Familiarity with database technologies such as Oracle, MySQL, PostgreSQL, MongoDB, or SQL Server.Proven experience in both consuming and designing RESTful APIs.Understanding of user authentication and authorization across multiple systems, servers, and environments (for example, using JWT).Ability to integrate multiple data sources and databases into a unified system.Understanding of differences between multiple delivery platforms (mobile vs. desktop) and optimizing outputs for each platform.Proficient in using version control tools such as Git.Knowledge and experience working with cloud environments such as GCP, AWS, or Azure.ResponsibilitiesDevelop and package new products, features, and user interfaces from wireframe models.Ensure the best performance and user experience of applications.Write clean, readable, and testable code following best practices.Optimize applications for maximum speed and scalability.