Senior FullStack Developer (Node/PHP/React)

Description

Job Details Contract Type: * Freelance (PJ) Professional Area: Information Technology / IT Work Mode: Remote Responsibilities and Duties We are expanding our team and seeking a Senior Full Stack Developer to work in a dynamic, distributed, and highly scalable environment. This professional will play a key role in enhancing our platform's architecture and will be instrumental in technical decision-making and implementing significant improvements in performance, scalability, and observability. If you possess strong technical experience, an engineering-oriented mindset, and prior experience with high-availability systems, we want to meet you! Responsibilities: Develop and optimize backend applications with PHP and Node.js. Create and maintain frontend interfaces using React and jQuery. Work with event-oriented architectures, implementing solutions with NSQ and Kafka. Apply effective caching strategies using Redis and Memcached. Model and optimize data using MongoDB. Ensure application observability with OpenSearch/Kibana and New Relic. Implement and manage containerized environments using Docker. Actively participate in architectural decisions and code reviews. Ensure quality, performance, and security of developed systems. If you are passionate about technology, have substantial development experience, and seek new challenges, join our team! We look forward to learning your ideas and contributions to our project. Requirements and Qualifications Backend Technical Requirements Solid experience with PHP and Node.js REST API development Experience with distributed systems Good architectural practices (SOLID, Clean Code, Design Patterns) Frontend Experience with React Experience with jQuery (maintenance/evolution of legacy systems) API integration Good frontend performance practices Architecture & Infrastructure Experience with messaging/event streaming (NSQ and/or Kafka) Use of Redis and Memcached for caching Experience with MongoDB Experience with Docker Monitoring and observability with OpenSearch/Kibana and New Relic Differentiators Experience with microservices architecture High-scale or high-volume event systems Experience with critical environments (fintech, marketplaces, SaaS platforms) DevOps culture Job Code: 2197