Software Engineer | Golang | Elixir | AWS

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Ratnesh Maurya

<h3>About Me</h3>I am a Backend Engineer specializing in distributed systems, microservices, and AI-powered infrastructure. My work focuses on building reliable systems and intelligent automation at the intersection of these fields. Currently, I am based in Gurugram and working at Initializ.<h3>Experience</h3><ul><li>Initializ (Aug 2023 – Present) - Software Development Engineer<ul><li>Developed a Digital Lending Platform to power the full digital loan lifecycle, including KYC integrations (Aadhaar, PAN, Experian), credit workflows, and AI-assisted automation.</li><li>Designed a RAG Document Intelligence system for large-scale unstructured PDFs using Python, Ollama, and vector retrieval.</li><li>Built a Secret Management Platform with end-to-end encryption, RBAC, and a custom Kubernetes controller for automated secret injection.</li><li>Created a Golang-based Production Log Analyzer to enhance production observability in high-volume environments.</li></ul></li><li>EMSEC Pvt. Ltd. (Mar 2023 – Aug 2023) - Software Developer Intern<ul><li>Developed High-Throughput REST APIs handling over 1,000 requests per minute for production workloads.</li><li>Automated an SSL Certificate Scraper pipeline to collect certificate data from over 300 domains.</li></ul></li></ul><h3>Projects</h3><ul><li>Personal Tracker: A habit, expense, sleep, and study tracker with interactive analytics dashboards.</li><li>Rehabify: A platform for centralized de-addiction centre management, covering patient records, treatment tracking, and operations.</li><li>JSONic: A high-performance JSON parsing, formatting, validation, and manipulation tool powered by a Go engine.</li><li>mdconverter: A real-time text to Markdown converter with live preview and formatting options.</li></ul><h3>Writings</h3><ul><li>That Little Square Does a Lot: How QR Codes Actually Work (Apr 15, 2026)</li><li>Go 1.26.2 Released: Security Fixes, Regression Patches, and an Upgrade Playbook (Apr 9, 2026)</li><li>cursor-claude-personas: Give Your AI Coding Assistant a Domain Expert Brain in 30 Seconds (Mar 21, 2026)</li><li>Five Caching Strategies Every Backend Dev Should Know (Feb 24, 2026)</li></ul>

Beyond Portfolio

Discover a suite of free developer tools crafted by Ratnesh Maurya, designed to enhance productivity and streamline your workflow. This collection includes a JSON formatter and validator that allows you to format, validate, minify, and convert JSON to TypeScript and Go types. The habit tracker helps you monitor your daily routines, sleep patterns, and expenses with a GitHub-style activity calendar. The Markdown converter instantly transforms text into clean Markdown with real-time previews. Compare npm, Go, and Elixir Hex packages side by side with the npm package comparison tool, providing insights into bundle size, download trends, and dependencies. Additionally, the Elixir JSON converter facilitates the conversion of Elixir maps to JSON and vice versa. Explore practical notes on backend architecture, distributed systems, and AI engineering through the backend engineering blog. These tools are accessible online, free of charge, and require no sign-up, making them an essential addition to any developer's toolkit.

The DevToolbox

MD Converter is a powerful online tool designed to transform plain text into clean, structured Markdown effortlessly. Whether you're working with notes, documents, code snippets, or articles, this tool provides a seamless conversion experience. Key features include real-time split preview, smart heading detection, and automatic code block recognition, making it an essential tool for developers and writers alike. Users can enjoy table formatting, bullet and numbered list creation, and blockquote recognition, all with a single paste action. The tool supports a wide range of languages, including JSON, TypeScript, JavaScript, Python, Bash, CSS, HTML, and YAML, ensuring accurate code block detection. Additionally, MD Converter offers a dark and light theme, keyboard shortcuts, and the ability to download the converted Markdown as a .md file. With its user-friendly interface and comprehensive feature set, MD Converter is the perfect solution for anyone looking to streamline their Markdown creation process.

MD Converter — Instant Text to Markdown

Notepad — Canvas &amp; Document is a versatile tool designed for both creative and structured note-taking. It offers a unique combination of a free-form canvas for drawing and writing, alongside A4 document pages for organized notes. This dual functionality allows users to seamlessly switch between creative brainstorming and detailed documentation. Key features include the ability to draw freely, making it ideal for sketching ideas or diagrams, and structured document pages that cater to more formal note-taking needs. The integration of React ensures a smooth and responsive user experience, making it a reliable choice for enhancing productivity. Whether you're a student, professional, or creative, this tool adapts to your workflow, providing a flexible platform for capturing thoughts and ideas.

Notepad — Canvas & Document

Discover the power of role-based AI personas with this comprehensive collection designed for developers and tech enthusiasts. This project offers 38 distinct AI persona packs tailored for Claude Code, Cursor, and VS Code environments. Each persona is equipped with .claude and .cursor configurations, providing domain-specific rules and skills to enhance your coding experience. <h3>Key Features:</h3><ul><li>Domain Expertise: Instantly transform your AI coding tool into a domain expert by copying a persona's config into your project.</li><li>Seamless Integration: No need for prompt engineering or system prompts. Just copy and code.</li><li>Wide Compatibility: Supports Claude Code, Cursor, and VS Code, ensuring flexibility across different platforms.</li><li>Rapid Setup: Get started in just 30 seconds by cloning the repo and copying the desired persona into your project.</li><li>Diverse Persona Options: Choose from personas like senior-frontend-developer, security-engineer, technical-writer, and more, each tailored to specific roles and technologies.</li></ul>Enhance your development workflow with ready-made workflows for documentation, pull requests, and automation. This open-source project encourages contributions and collaboration, making it a valuable resource for the developer community.

Domain Expert Brain in 30 Sec for your IDE

Explore all my thoughts on web development, programming, and technology. Learn from real-world experiences and practical insights. This blog, authored by Ratnesh Maurya, delves into various aspects of web development, backend engineering, and system design. It covers topics such as file storage, data compression, and building modern web applications using Next.js and other technologies. The blog also provides insights into optimizing memory layout in Go, deploying websites with GitHub Actions, and designing scalable architectures for ride-sharing apps. With a focus on practical knowledge and real-world applications, this blog is a valuable resource for developers looking to enhance their skills and understanding of modern web technologies.<h3>Key Features</h3><ul><li>Technical Insights: In-depth articles on web development, system design, and programming.</li><li>Real-World Applications: Practical examples and case studies from the tech industry.</li><li>Modern Tech Stack: Utilizes JavaScript, TypeScript, Node.js, React, Next.js, and more.</li><li>Comprehensive Guides: Step-by-step tutorials on deploying websites and optimizing code.</li></ul>Whether you're a seasoned developer or just starting out, this blog offers valuable insights and knowledge to help you navigate the ever-evolving world of technology.

All Blog Posts | Ratn Labs

Rehabify is a transformative platform designed to guide individuals towards a brighter future. While specific technical details are not provided, the platform emphasizes the importance of enabling JavaScript, suggesting a web-based application. Rehabify aims to offer a seamless user experience, potentially leveraging modern web technologies to deliver its services. The core functionality revolves around providing support and resources for personal development and rehabilitation, ensuring users have the tools they need to succeed. Although the exact features are not detailed, the emphasis on a brighter tomorrow indicates a focus on positive outcomes and user empowerment. By integrating cutting-edge technology, Rehabify strives to create an impactful and supportive environment for its users.

Rehabify- The Path to a Brighter Tomorrow

JSONic is a powerful and lightweight utility designed to simplify working with JSON data. This web-based application offers a comprehensive suite of tools for developers, including JSON Formatting and Pretty Printing, JSON Validation with Error Reporting, and JSON Comparison and Diff Analysis. With an Interactive JSON Tree View, users can easily navigate and manipulate JSON structures. Additional features include JSON Minification and Compression, JSONPath Query Execution, and JSON to TypeScript Type Generation. JSONic is accessible for free and operates on any modern web browser with JavaScript enabled. Created by Ratnesh Maurya, this tool is ideal for developers seeking efficient and intelligent solutions for JSON processing.

JSONic - Lightweight JSON Utility

Personal Tracker is a comprehensive web application designed to help you track various aspects of your personal life, including habits, sleep, food, study, expenses, and journal entries. This tool aims to assist you in building better habits and achieving your goals through detailed analytics and insights. Key features include:<ul><li>Habit Tracking with streak monitoring to keep you motivated.</li><li>Sleep Analytics for tracking duration and quality of sleep.</li><li>Food Logging with a North Indian food database to monitor your diet.</li><li>Study Time Tracker with topic categorization to enhance productivity.</li><li>Expense Management with multi-currency support for financial tracking.</li><li>Daily Journal for capturing thoughts and reflections.</li><li>Interactive Analytics Dashboard to visualize your progress.</li><li>PWA Support for mobile installation, allowing offline access.</li></ul>Personal Tracker is free to use and can be installed as a Progressive Web App (PWA) on your phone, providing seamless functionality across both desktop and mobile devices. With a focus on privacy and security, your data is encrypted and secure, giving you control over your privacy settings. Join thousands of users who are already tracking their progress and achieving their goals with Personal Tracker.