Senior Fullstack JavaScript Engineer Oowlish is seeking an experienced technology professional to enhance our diverse and vibrant team. As a valued member of Oowlish, you will collaborate with premier clients from the United States and Europe, contributing to pioneering digital solutions. We offer the convenience of remote work, allowing you to craft a work-life balance that suits your personal and professional needs. We're looking for candidates who are passionate about technology, proficient in English, and excited to engage in remote collaboration for a worldwide presence. About the Role: We're seeking a Senior Fullstack JavaScript Engineer with strong expertise in Node.js and React, and a solid foundation in backend architecture and relational databases. This is a great opportunity for someone passionate about modern JavaScript/TypeScript development who enjoys autonomy and working in dynamic environments. Key Responsibilities: - Design, build, and maintain full-stack applications using React, Node.js, and Koa - Develop RESTful APIs and backend services following microservices architecture - Write efficient, scalable code in JavaScript and TypeScript - Work with PostgreSQL to design, query, and optimize relational data models - Collaborate in a Linux-based development environment - Participate in code reviews, architectural discussions, and technical planning - Implement and maintain CI/CD pipelines and support robust testing practices Must Haves: - 5+ years of professional experience in software development - Strong proficiency in JavaScript (JS) and TypeScript (TS) - Solid experience building frontend applications with React - Advanced knowledge of Node.js and at least 1–2 years of experience with Koa - Deep understanding of relational databases, especially PostgreSQL - Experience working in a Linux development environment - Solid grasp of software design principles, REST APIs, and micro-services architecture - Familiarity with testing frameworks and CI/CD pipelines Nice to Have: - Exposure to Docker, containerized environments, or cloud platforms - Experience working in Agile teams or startup environments - Understanding of application performance tuning and monitoring Benefits & Perks: - Home office - Flexible Hours - Competitive compensation based on experience - Career plans to allow for extensive growth in the company - International Projects - Oowlish English Program (Technical and Conversational) - Oowlish Fitness with Total Pass - Connecting You (Internet allowance) - Anniversary bonus - Wedding gift - Pet adoption incentive - New baby Oowl bonus - Back to School bonus - Streaming Subscription - PTO Bonus - Games and Competitions