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Seasoned Web Developer and Blockchain enthusiast with a proven track record in the IT and services industry. Expertise in Research, PHP, HTML, JavaScript, and Blockchain development, including Smart Contracts. Skilled in automation, application testing, and cybersecurity analysis for web and mobile apps.
Senior Full‑Stack Developer with over seven years’ experience designing, building and maintaining large‑scale web applications. Track record of delivering end‑to‑end solutions by partnering with stakeholders to translate business and user needs into reliable software. Committed to clean, maintainable code, performance tuning, security best practices, and automated CI/CD pipelines. Nearly two years of hands‑on AI experience, integrating machine learning models and automation to boost product intelligence. I’ve contributed as a developer at global leaders Adobe and Newgen, as well as at high‑growth startups MoveInSync and Zillious Solutions. Skills Advanced: Java, MySQL, PostgreSQL, Spring, Hibernate, Spring Boot, Maven/Gradle, Microservices, Multithreading & Concurrency Control, Web Services (SOAP & REST), RPC, Git, Google Cloud Platform (GCP), Database Modeling & Schema Design, SQL (Stored Procedures/Functions, Triggers), Docker, Kubernetes. Intermediate: TypeScript, Python, Angular, React, API Gateway, Service Discovery, Load Balancer, ELK Stack, Kafka, RabbitMQ, Redis Cache, RAG (Retrieval-Augmented Generation), AI Agents, LangGraph, Vector Databases, AI Workflows, Fine‑Tuning. Core Strengths: Scalable system design, back‑end architecture, data structures & algorithms. How I Can Help You – I’m here to tackle your toughest technical challenges with expertise and dedication. Special Offer – Enjoy your first session free! (Terms & Conditions apply — let’s discuss your needs during our requirement-gathering call.) Satisfaction Guaranteed – Not satisfied? Request an instant refund, no questions asked. For a comprehensive overview of additional technologies and frameworks tailored to your needs, please refer to the Expertise section of my profile.
Technical leader with 9 years building scalable solutions across auction platforms, content management systems, and enterprise applications. Currently leading AI-First development at Pickles Auctions, helping teams adopt GitHub Copilot and modern development practices. Strong background in microservices, CLI tools, and data engineering with a focus on mentoring developers and designing systems that solve real business problems.
With over 15 years of experience across software engineering, architecture, and product leadership, I specialize in building high-performing engineering teams, architecting scalable systems, and driving strategic product delivery. As a Tech Lead and adjunct faculty member, I combine hands-on technical expertise with leadership, mentorship, and education to deliver enterprise-grade solutions while developing the next generation of engineers. Technology Stack: Mobile & Web: Flutter/Dart, React, Multi-tenant Architectures Cloud & Backend: AWS (AppSync, Amplify, Lambda), Firebase, GraphQL, REST APIs Languages: C/C++/C#, Dart, Java, Python, JavaScript/TypeScript Specialized: IoT, Embedded Systems, Edge AI, Information Security Architecture: Clean Architecture, Microservices, Event-Driven Systems Leadership & Roles: Tech Lead / Chapter Lead – Leading cross-functional teams of 8+ engineers Product & Engineering Manager – Driving product strategy and delivery Solutions Architect – Designing enterprise systems and multi-tenant platforms Educator & Mentor – Adjunct faculty + 300+ mentees on Codementor Key Expertise: Teaching computer science fundamentals and advanced topics Leading distributed engineering teams and establishing technical standards Architecting and delivering complex SaaS platforms Strategic product roadmapping and stakeholder management Building developer assessment frameworks and quality systems Mentoring engineers from junior to senior levels Educational Background: PhD Candidate, Computer Engineering (Edge AI Research) Master of Computer Engineering Master of Business Administration (MBA) Postgraduate Diploma, Software Development Skills (UNIX) Bachelor of Computer and Information Sciences Current Focus: Building scalable multi-tenant platforms, AI-driven development workflows, team capability development, and strategic consulting and education.
* 15+ years of experience in software development. * 7 years of building apps with NodeJS, React and Angular. * 5 years of hands-on work with cloud-based. * Solid background in computer science and software development. * Proficient in important practices like Clean Code, Refactoring, Test Automation, and CI/CD. * Exceptional at solving problems and learning new technologies quickly.
With over a decade of experience in full-stack development, I specialize in **Ruby on Rails, custom eCommerce solutions** (Spree, Solidus), **ReactJS**, and **DevOps**. My expertise spans designing and developing scalable, distributed cloud-based applications with a strong foundation in **database architecture** and **system refactoring**. As a technology leader, I’ve successfully delivered complex, high-impact projects across industries including **Real Estate, Finance, Healthcare, Marketing**, and **eCommerce**. My portfolio includes building sophisticated eCommerce marketplaces, **SaaS platforms**, and multi-channel selling applications. I am passionate about crafting innovative, robust software solutions tailored to meet diverse business needs. **Key Expertise:** - **Backend:** Ruby on Rails, building and scaling RESTful APIs. - **Frontend:** ReactJS, JavaScript, responsive UIs with Tailwind CSS, and Bootstrap. - **eCommerce Solutions:** Spree, Solidus, custom marketplaces, multi-tenant SaaS platforms. - **Database Architecture:** MySQL, PostgreSQL, MongoDB, Redis, Cassandra, optimized for high performance and scalability. - **DevOps:** CI/CD pipelines (CircleCI, AWS Pipeline), containerization (Docker), cloud platforms (AWS, GCP, Heroku, DigitalOcean). - **Test-Driven Development:** Expertise in TDD using RSpec, ensuring high code quality and maintainability. In addition to my technical expertise, I have a strong commitment to **open-source contributions** and have developed multiple **Ruby/Rails/Spree extensions**. I also bring a wealth of experience in **refactoring legacy code bases**, implementing **performance optimisation**, and improving **scalability** and **security**. My passion lies in helping businesses unlock their full potential through technology, and I am always eager to collaborate on long-term, impactful projects. Let’s build the future, one line of code at a time. Best regards, Rahul Singh
I do it all, I do iOS (swift and Obj C) , Android (Kotlin and Java), front end (I use my own JS framework, although I know vue or react), and Node Js for my back end, I prefer MongoDB, but I can use SQL like Postgres, Been programming for nearly 20 years so I know the ups and downs. I have clone Uber, Twitter , Tinder and other major apps for clients, like "tinder for job matching between employers and candidates".
I'm a **polyglot fullstack software developer** (*I'm able to effectively work with multiple languages, tools, and frameworks*) with over 13+ years of industry experience in web application development. I'm also an instructor and mentor in various bootcamps having lead class cohorts, mentored groups of students and 1:1 tutoring sessions. I'm experienced in **Python**, **ECMAScript** (Javascript or Node.js), **Java**, **C#** **Ruby**, **PHP**, and even **Scala**. I work in both frontend and backend spectrums of the web stack, so whether you're debugging something in React.js or you're stuck on a complex SQL query, I'm more than happy to help in your code debugging adventures. My instruction style is that I like to guide the student towards learning *how* to solve rather than simply giving you the solution - I don't believe a student should be stuck on always referring back to a senior developer to get unblocked, but should be empowered to solve their own problems. Now that's real mentorship!
Hey there, I'm having **8+ years** of experience in **PHP server side** scripting language. **Skills:** * Back-end: PHP, CakePHP, Laravel, LAMP/LEMP stack * Front-end: Javascript, jQuery, Vue.js, Inertia.js * Database: SQL(MySQL, Postgres), Redis * Dev-Ops: Linux, Docker, Git(Gitlab, Github, Bitbucket), Supervisor * Third party APIs: Xero, Quickbooks, Slack, Stripe, [Customer.io](http://customer.io/), Twilio, Facebook API, Google API and many more * Coding Standards: PSRs, EditorConfig * Static Analysis tools: PHPStan, Psalm, SonarQube * Testing: PHPUnit, Cypress, Little bit of Python + Selenium * CI/CD: GitHub Actions, Travis, Jenkins * Error Tracking: Rollbar, Sentry * Building RESTful APIs * Data Integration solutions
Technical cofounder, board member, and seasoned operator with experience building and growing early stage companies (pre-seed to late Series), large scale government and commercial projects, and nonprofits.
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