Full Stack Developer (MERN Stack & Nest.js)

We are seeking a highly skilled Full Stack Developer with strong expertise in the MERN stack (MongoDB, Express.js, React, Node.js) along with hands-on experience in Nest.js. The ideal candidate will be responsible for building scalable, secure, and high-performance web applications, working across both front-end and back-end systems.This role requires strong technical capabilities, problem-solving skills, and the ability to collaborate effectively within a cross-functional team.Experience RequiredMinimum 1–2 years of proven experience as a Full Stack Developer working with the MERN stack and modern JavaScript frameworks like Nest.js. Experience beyond this range is highly valued.Key ResponsibilitiesFront-End DevelopmentDevelop responsive and high-quality interfaces using React.js.Implement reusable front-end components and ensure consistent performance.Integrate front-end features seamlessly with backend APIs and services.Back-End DevelopmentBuild robust, scalable, and secure server-side applications using Node.js, Express.js, and Nest.js.Develop well-structured, maintainable APIs and backend modules.Work with MongoDB for schema design, queries, aggregations, indexing, and optimization.CollaborationCollaborate with product managers, developers, and QA teams throughout the software development lifecycle.Participate in sprint planning, code reviews, and architecture discussions.Gather feedback to improve system performance and user experience.Quality & PerformanceWrite clean, well-documented code following industry best practices.Optimize applications for performance, scalability, and reliability.Debug issues across multiple environments, browsers, and devices.Skills & QualificationsCore Development SkillsStrong proficiency in JavaScript, React.js, Node.js, Express.js, Nest.js, and MongoDB.Solid understanding of RESTful APIs, MVC architecture, and microservices concepts.Experience with HTML5, CSS3, and responsive design implementation.Hands-on experience with Git for version control.Strong debugging, analytical, and testing skills.Additional SkillsExcellent communication and teamwork abilities.Ability to manage multiple projects in a fast-paced environment.A portfolio or GitHub profile showcasing MERN and/or Nest.js projects.PreferredExperience with state management libraries like Redux or Context API.Familiarity with Agile/Scrum methodologies.Knowledge of UI frameworks such as Material UI, Tailwind CSS, or Chakra UI.Why Join Us?Be part of a dynamic and innovative development team.Work on impactful, real-world projects with room for professional growth.A supportive environment that encourages learning and skill expansion.Shift HoursUS Hours — 7 PM to 4 AMContact Info📧 careers@theonellc.com 📍 Office # S-7, 2nd Floor, Victoria Square, Satellite Town, Commercial Market, Rawalpindi 🌐 https://theonellc.com/