Ranjan Singh

Software Engineer II at Telos

Ranjan Singh

As a Software Engineer II at Telos. I am a dedicated Full-Stack developer with a passion for innovation and a keen eye for staying ahead in the rapidly evolving tech industry. My expertise lies in crafting visually appealing and seamlessly functional web applications using technologies such as React, React Native, Node.js, and Next.js. I am also skilled in AI development, leveraging frameworks like Langchain to build cutting-edge AI applications. I am committed to delivering exceptional results by prioritizing quality, efficiency, and elegance in every project I undertake.

Currently working on

Timeline

2024-2025

  • Architected and launched Telos, an AI-powered journal platform for intentional living (https://heytelos.com/), serving users seeking mindful self-reflection.
  • Engineered a high-performance backend utilizing Server-Sent Events (SSE) and auto-scaling with Cloud Run, delivering seamless real-time data synchronization.
  • Designed and implemented an intelligent Chat Agent with Retrieval-Augmented Generation (RAG) capabilities using Langchain and multiple LLM providers including Claude and OpenAI, delivering personalized AI-driven guidance and significantly enhancing user engagement.
  • Built a Python-based HTML-to-image conversion application, automating high-fidelity content generation and optimizing user workflow efficiency.
  • Contributed to Microsoft's Presidio open-source project, enhancing PII data de-identification capabilities.

2022-2023

  • Engineered an AI-powered personalized trip itinerary generator (Quick Start), revolutionizing travel planning through intelligent automation and user preference analysis.
  • Automated email attachment processing for travel planning workflows, significantly reducing manual effort and enhancing user experience.
  • Implemented AI-driven booking import functionality for transportation and accommodation, streamlining the reservation management process.
  • Strengthened application reliability by implementing comprehensive error boundaries and Sentry monitoring, reducing crash rates and improving overall stability.
  • Optimized backend architecture for enhanced concurrency handling, achieving improved scalability and performance under high load conditions.
  • Developed sophisticated internal tools for streamlined application management and comprehensive performance monitoring.
  • Completed advanced certifications in Software Architecture & Technology of Large-Scale Systems and Artificial Intelligence A-Z™, expanding technical expertise in enterprise-scale solutions.

2021

  • Architected and developed a robust Node.js backend using Express.js, successfully processing 20,000+ legal cases weekly across multiple law firms.
  • Enhanced system communication efficiency by implementing RabbitMQ message queuing between Crawler and Backend services, reducing pending request backlogs by 80%.
  • Created and published sharp-multer NPM package, providing automated image resizing, optimization, and watermarking capabilities for multer file uploads.
  • Integrated real-time in-app notifications using Socket.io, improving user engagement and communication responsiveness.
  • Successfully migrated React Native application from legacy version 0.53 to 0.60, ensuring compatibility with modern devices and enhanced performance.
  • Developed and published custom React Native package Country Code Picker, contributing to the open-source community.

2020

  • Developed a comprehensive e-commerce platform using Next.js and Material-UI for Revo Telecom Parts Inc, managing 60,000+ SKUs with advanced product catalog functionality.
  • Significantly improved SEO performance by implementing multi-language support across the entire product catalog, enhancing global market reach.
  • Engineered intelligent auto-localization features supporting 8 languages without relying on IP-based detection, improving user accessibility and experience.
  • Architected and developed both native mobile application and backend infrastructure for wedding marketplace Wedcell, creating a comprehensive platform for wedding service providers and couples.
  • Mastered modern web technologies including ReactJS, TypeScript, Redux, and Ant Design, expanding full-stack development capabilities.

2018 - 2019

  • Implemented advanced GPS-based location tracking solutions using React Native and Firebase, delivering precise real-time positioning capabilities.
  • Developed offline-first location tracking architecture, ensuring reliable data collection even in low-connectivity environments.
  • Integrated Hermes JavaScript engine to optimize React Native application startup performance, reducing initial boot time significantly.
  • Built a sophisticated native IoT control application with Bluetooth and WiFi connectivity, enabling seamless device management and monitoring.
  • Designed and developed a 2D endless runner mobile game featuring custom character design using Unity Game Engine, demonstrating versatility in game development.