I am a dedicated leader and senior manager (upwork top rated plus), proficient in Spanish, English and French, with 12+ years of experience consistently translating vision into successful reality, always aligned with organizational objectives, while driving transformative outcomes. I have large experience leading globally distributed teams, and managing projects, delivery, product, operations and departments in various sectors including SaaS, advertising, payroll, fintech, software development, retail, e-commerce, engineering, education and social impact. With large experience managing complex projects using both waterfall and agile frameworks, building and managing project plans, product roadmaps, implementing risk management plans, managing the software development life cycle, elevating customer experience, enhancing systems functionalities, implementing software, driving organizational change, developing high performing teams and optimizing processes and operations though workflow optimization, automation, and the implementation of standards and KPIs. Proven track record of achieving 60% reduction in cycle time, 30% revenue growth, and successfully turning around at-risk client accounts and underperforming departments. Large expertise implementing Wrike and Clickup, training teams on the systems, and building automations in Zapier and Workato

Hi, I am Vishnu, a Senior Full-Stack Developer with 10+ years of experience in Electron, Tauri, AI/ML, SaaS development, MVP development, automation, and cross-platform desktop applications. I build reliable software products using Electron, Tauri, React, Next.js, TypeScript, Node.js, Python, FastAPI, OpenAI, Claude, LangChain, RAG, vector search, and modern cloud technologies. Most of my work sits at the intersection of desktop app development, full-stack engineering, AI integration, workflow automation, and SaaS product development. I help startups, SMBs, and product teams build applications for Windows, macOS, Linux, and the web, from early-stage MVPs to production systems used by real businesses. 🎯 𝐀𝐫𝐞𝐚𝐬 𝐈 𝐜𝐚𝐧 𝐡𝐞𝐥𝐩 𝐲𝐨𝐮 𝐰𝐢𝐭𝐡: 𝐃𝐞𝐬𝐤𝐭𝐨𝐩 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 Electron development, Tauri development, desktop app development, cross-platform apps, desktop SaaS clients, offline-first tools, system tray apps, multi-window applications, file managers, local database apps, background services, auto-updaters, code signing, native OS integrations, Windows apps, macOS apps, and Linux apps. 𝐀𝐈, 𝐌𝐋 & 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 AI agents, AI chatbots, AI assistants, AI automation, AI-powered SaaS, document Q&A, RAG pipelines, OpenAI integration, Claude integration, LangChain workflows, vector search, embeddings, prompt engineering, data extraction, OCR workflows, API automation, workflow automation, and AI features inside existing products. 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐒𝐚𝐚𝐒 & 𝐌𝐕𝐏 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 SaaS platforms, MVP development, custom web applications, admin dashboards, APIs, internal tools, client portals, CRM tools, authentication, payments, subscriptions, cloud deployment, database-backed applications, multi-tenant platforms, and scalable backend systems. 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬 & 𝐁𝐮𝐬𝐢𝐧𝐞𝐬𝐬 𝐖𝐨𝐫𝐤𝐟𝐥𝐨𝐰𝐬 REST API integrations, third-party API integrations, CRM integrations, payment integrations, Stripe integrations, Google API integrations, email automation, notification systems, reporting workflows, data syncing, webhooks, and internal operations automation. My usual stack includes Electron, Tauri, React, Next.js, Vue.js, TypeScript, JavaScript, Node.js, NestJS, Python, FastAPI, Django, PostgreSQL, MongoDB, Supabase, Firebase, Redis, Stripe, AWS, Azure, Docker, Vercel, Cloudflare, OpenAI, Claude, LangChain, RAG, Pinecone, and vector databases. I care about building software that is not only functional, but maintainable. Desktop apps especially need proper architecture, secure local storage, smooth updates, reliable packaging, installer setup, code signing, and clean release flows. AI features need to be useful, controlled, and properly connected to the product, not added as a gimmick. For Electron and Tauri projects, I can help with the full development cycle: architecture, UI, backend APIs, local storage, native features, packaging, installer setup, auto-updates, code signing, debugging, performance optimization, and production release. For AI projects, I can help design and build practical AI workflows, including RAG chatbots, document search, AI assistants, AI agents, data extraction tools, internal automation, and LLM-powered product features. ☑️ 𝐒𝐨𝐦𝐞 𝐨𝐟 𝐦𝐲 𝐫𝐞𝐜𝐞𝐧𝐭 𝐰𝐨𝐫𝐤 𝐢𝐧𝐜𝐥𝐮𝐝𝐞𝐬: • Cross-platform Electron apps for Windows, macOS, and Linux • Tauri apps with lightweight performance and secure local storage • AI-powered document search and Q&A systems using RAG • Desktop SaaS clients with authentication, billing, and API sync • Internal automation tools connected to CRMs and third-party APIs • Enterprise reporting dashboards with offline-first support • File management and synchronization tools with OS-level integrations • Code signing, auto-update, and release pipeline setup • Full-stack SaaS MVPs for startups and SMBs • OpenAI and Claude integrations inside existing applications • Admin dashboards, client portals, and internal business tools • API integrations, Stripe billing, CRM sync, and webhook automation 🏆 𝐖𝐡𝐚𝐭 𝐜𝐥𝐢𝐞𝐧𝐭𝐬 𝐬𝐚𝐲 𝐚𝐛𝐨𝐮𝐭 𝐦𝐞 🏆 ⭐⭐⭐⭐⭐ “Absolute expert with great communication skills, we will work together soon again.” ⭐⭐⭐⭐⭐ “Vishnu is an exceptional developer whose work consistently exceeds expectations.” ⭐⭐⭐⭐⭐ “Very knowledgeable and went above and beyond to meet our requirements. Highly recommend.” ⭐⭐⭐⭐⭐ “Resolved a complex code signing issue for my application, and I couldn't be more pleased with the outcome.” I work best with clients who want a technical partner, not just someone to complete tickets. I can collaborate on planning, architecture, development, debugging, deployment, AI integration, automation strategy, and long-term product improvements. Just click on INVITE or MESSAGE button with your project details, and I’ll respond with a clear plan for building a robust, scalable solution around your needs. Looking forward to hear from you!

Once a Structural Engineer, now a 2x AI Founder — I evolved from building physical structures to architecting intelligent systems that scale across industries. Over the last few years, I’ve led 40+ AI Solutions from Ideation to Enterprise Grade Production. 2 of the companies has been acquired by a Unicorn, and many others scaling up more. ✅ I am a fit if: You are the direct decision maker or can approve technical direction You have a project budget of at least $5,000 USD for the first phase You are targeting $10,000+ in measurable efficiency or operational savings within 90 days You are ready to begin within the next 2 weeks ❌ I am not a fit if: Pricing is the primary factor above outcome, speed, and quality. Your business falls under gambling, adult, or similar restricted categories. You are not collaborative or not open to strategic guidance. ⚡ Real Results ✅ KairaIQ Platform – Processed 500+ policy documents & automated 90% of manual data workflows using autonomous AI agents
 ✅ Agentic Microservices System – Reduced latency from 30s → 5s by refactoring into 12 parallel AI services
 ✅ Government AI Platform – Scaled to 4M+ users with 100K+ daily AI-powered requests
✅ Computer Vision Systems – Achieved 96% accuracy in real-time detection across 142K+ images
 ✅ AI Automation Pipelines – Eliminated manual data entry by 90% via OCR, scraping & document intelligence systems
 ✅ Global Experience – Delivered AI systems across US, Nigeria, UK, Netherlands, Spain, Russia, Italy & enterprise-grade distributed environments 🧩 Our Expertise 🔊 AI Systems & Intelligent Automation Production-grade LLM-powered platforms and agentic workflows Real-time AI pipelines for document processing, research & decision-making Multimodal AI systems (text, vision, speech) for enterprise use-cases Memory-enabled, context-aware AI systems with long-term reasoning 🧠 Autonomous & Agentic Architectures Scalable multi-agent systems for research, operations & workflow automation Advanced RAG pipelines with hybrid retrieval (vector + web + structured data) Distributed task orchestration using Celery, Redis & microservices Deterministic AI systems with structured outputs and validation layers 🛍️ Applied AI Systems (Industry-Focused) AI platforms for fashion, marketplaces & enterprise SaaS products Intelligent document intelligence systems for policy, legal & compliance workflows AI-powered matching, recommendation & personalization engines End-to-end automation pipelines for data extraction, enrichment & insights 📊 AI Analytics & Decision Intelligence Real-time AI-driven dashboards & insight generation systems Predictive modeling & business intelligence pipelines Automated reporting with natural-language summaries from structured + unstructured data High-scale data processing systems handling 100K+ daily operations 💼 Custom AI Systems & Platforms Enterprise-grade AI SaaS platforms (multi-tenant, scalable, cloud-native) RAG-based knowledge systems for internal tools & customer-facing products Computer vision systems (YOLO, VGG) for real-time intelligence AI-powered workflow automation replacing manual operations at scale 💡 How We Help 🔨 End-to-End AI Product Development From idea → architecture → MVP → production scale
We don’t just build — we design systems that last 👥 Technical Leadership & Build Execution Act as AI/Engineering Lead or CTO partner Architect systems, lead teams, and ensure production delivery Bring structure, speed, and clarity to complex AI builds ⚙️ Optimize, Refactor & Scale Transform monoliths into scalable microservices architectures Improve latency, reduce cost, and increase reliability Take systems from prototype → production-grade infrastructure 🤝 Why Teams Work With Me ✅ Production-First Mindset – built systems serving millions of users & real workloads
 ✅ Deep AI + Engineering Expertise – from models → infrastructure → product
 ✅ Speed with Structure – fast execution without breaking systems
 ✅ Clear Thinking & Architecture – not just code, but scalable systems design
 ✅ Global Experience – shipped across US & Africa markets 💬 Let’s Talk I usually respond quickly.
If you're building or scaling an AI system — I can help you design it right, build it fast, and scale it properly. 📩 Message me — let’s turn your idea into a production-ready AI system.

Summary Coding with Laravel since 2015 
Backend 70% FE 30%
 Experienced as a Team Lead (up to 5 people) Can develop from A to Z (Architecture, Designs, HTML, CSS, Javascript, MySQL, PHP, Laravel, Testing, Linux Servers, CI/CD, Review, Maintenance) 
Stripe API Integrations (advanced) Favourites: Laravel, Livewire, TailwindCSS, Vue.js, VPS, Vanilla Javascript 🦖 
Master: MBA Bachelor: Computer Science In the recent years: • Created a custom integration for Stripe API with Laravel 11 to generate, view, and update invoices, credit notes, and quotes. Created DTOs and mockups from Stripe objects and services for better manipulation of API data. • Transformed the non-technical requirements of the CEO into technical documents with schemas and timeframes • Transformed FIgma mockups into Laravel 10 and Livewire functionality • Created a responsive CMS using Vue.js and connected it via APIs to the core Laravel project • Used Laravel 10 for CRUD, join queries, request validations, actions, services, API integrations, and more. • Lead of 3 engineers; responsible for work breakdown, sprint planning, task delegation and code review. • Used TDD via PHPunit to ensure code stability and efficiency • Created a CI/CD via Circle.ci and Bitbucket • Planned and led large-scale refactors to convert monolithic codebase to microservices, and integrated CI/CD • Planned, led and migrated the core codebase from Laravel 5.2 to 8.0 and PHP from 5.6 to 8.1 • Used PHPUnit to create tests and features. Ensured smooth deployments via Circle.CI and Bitbucket • Created APIs using Typescript to get, update and delete data from the database • Migrated the CMS from Vanilla.js to Vue.js and connected it via APIs to the Laravel backend • Created, tested and imported APIs via Postman Education University POLITEHNICA of Bucharest Bachelor - Computer Science: 2010 - 2014 Master - Management Engineering, Business and Administration: 2014 - 2016

As an IIT graduate and versatile full-stack developer, I specialize in building high-performance mobile and web applications across FullStack Mobile & Web App, React Native, SaaS, eCommerce, PHP, and B2B platforms. With deep expertise in both front-end and server-side customization, I focus on delivering scalable, user-centric solutions that drive real-world impact and business value. Tech Expertise: ✔ Frontend: PHP, HTML, CSS, JavaScript, jQuery, ReactJS, NextJS, ✔ Backend: PHP, MySQL, REST API, GraphQL , Custom PHP Frameworks, WordPress Core Framework, Laravel, Node.js, Custom Plugin API, ✔ Plugin : WooCommerce ✔ AI Integration: OpenAI, ChatGPT, GPT-3 ✔ Tools: GitHub, API Integration, Webpack, NPM, YARN ✔ Markup & Styling: HTML5, CSS3, SVG, SCSS, SASS ✔ Responsive Web Design: Optimized for all devices Advanced AI & ML Expertise : 🔹 Cutting-Edge AI Solutions: ChatGPT, Midjourney, Stable Diffusion, DALL·E, and more. 🔹 Proficient in Large Language Models: Expertise in GPT, Llama, Mistral, and Yandex GPT. 🔹 Custom GPT Development: Langchain, agent creation, and task-specific customization. 🔹 Data Science & Machine Learning: Skilled in Numpy, Pandas, Scikit-learn, TensorFlow, PyTorch, and Keras. 🔹 Generative AI Mastery: Advanced experience with Stable Diffusion, LoRA, and fine-tuned models for custom image/video solutions. 🔹 Web Development: Python back-end specialist. 🔹 Automation & Optimization: Crafting scripts and bots to streamline processes. About Me: 👉 19+ years of proven experience in Web Application Development 👉 Expertise in building social networks and CRM analytics web applications 👉 Versatile Tech Stack: From React and NextJS to Laravel and GraphQL 👉 Industries Served: Social Media, ERP, CRM 👉 Collaborative, innovative, and results-driven approach 👉 Committed to delivering 100% job success with top-quality results Why Choose Me? 🥇19+ Years of Expertise in Tech Industry 🥇 Experienced in SaaS Based Product 🥇 Specialists in Custom WordPress, WooCommerce & Mobile App Development 🥇 Fast, Professional & Innovative Solutions

I'm an experience Python full stack developer with 4+ years of software engineering expertise in the design and implementation of REST APIs, web apps, AWS-specific solutions, Heroku deployments and web scraping. I used to code up new features and modules, debugging applications as client requirements from the back-end using Python & Django as a framework and from the front-end using ReactJs and have familiarity with front end languages like Javascript, bootstrap4 and CSS4 for web application client side designing. Worked closely with Database Administrators to store data in SQL and NoSQL databases, ETL technologies like Yarn Cluster, HUE, Airflow, Zeplin etc. I have hands-on knowledge on transforming business models using PySpark, Pandas and Numpy packages. Types of work you can hire me for: • REST APIs in Python (Flask and Django-Rest-Framework) • Web apps in Django • AWS solutions - ECS, Lambda, EC2, S3, SES, RDS... • Heroku deployments • Web Scraping - scrapy, Selenium. Scraping job sites, e-commerce platforms, company directories, financial markets. Additional skills: Database-related experience - PostgreSQL, Elasticsearch, Redis, MongoDB, Unit testing - CI/CD, pytest, unittest, nose Other experience - Docker, Git, Swagger, pandas Language: Python3.7, SQL, Java script, HTML, bootstrap4, CSS ETL Technologies : PySpark, Pandas, Numpy and Apache Airflow, Web Scraping. IDE : Pycharm, Visual Code, Sublime text, Mysql Workbench, Dbeaver, VDI, Postman, Jupyter Notebook.

💥Energetic🧐Experienced 💎Skilled🙂Friendly 👨‍💼Professional🔋 💯💯💯💯Sir, If you are looking for an Expert Browser Extension Developer | Full Stack Developer with MERN Stack and MEAN Stack | Mobile App Development with Flutter | API Integration, who is worth the time and money you invest and deliver projects on time and add value to your company, well you have found the right freelancer.💯💯💯 🔴 I have an absolute command of the following Technologies:- 👉Google Chrome Browser Extension 👉Mozilla Firefox Browser Extension 👉Browser DOM Manipulation 👉MV2 to MV3 Chrome Extension Migration 👉Web Scraping 👉Browser Automation 👉Selenium 👉HTML5 👉CSS3 👉JavaSript 👉Angular 👉React 👉jQuery 👉Node.js, NPM and Yarn 👉Expres.js 👉MongoDB and mongoose 👉JWT 👉Cookies and IndexedDB 👉SessionStorage and localStorage 👉API Integration 👉Cross Platform Development with Flutter 👉Progressive Web App (PWA) 👉Browser Notification 👉Git 👉GitHub 🔴 Here are a few of the projects I worked on for clients on Upwork:- 1️⃣ Tickets Chrome Extension($3000 project) In this project, I developed a chrome extension that fetched information about the seats and displays them in an attractive manner so that users who want to buy tickets on those platforms could do it with ease. A YouTube link is provided in the portfolio section. 2️⃣Dev Tools Chrome Extension($1700 project) This extension exports a JSON file containing information the user selected as well as additional data such as Url, base URL, and page title. It also exports screenshots of selected DOM elements by communication from content-script to the dev-tools panel via service-worker relay. Upon full completion of the project, the client gave me a $200 bonus in addition to the $1500 original agreement. He also reviewed me with a 5-star. U can verify this on my Upwork work history. A YouTube link is provided in the portfolio section. 3️⃣Screenshot Taker Extension This extension lets you capture any part of the screen you want to take a screenshot of and gives you options to save the Selection in an SVG format or Cancel. The extension is activated by clicking the browser action button. Once clicked, the cursor changes to a plus cursor, and then any part of the browser screen can be selected by dragging the mouse. A YouTube link is provided in the portfolio section. 4️⃣Food Delivery Responsive Website This application built using the front-end framework Angular is used to order food online. The application provides a form to hotels to register their restaurants and make their services available online. The application lists all registered food services in a responsive manner using Bootstrap and updates the list when there is a new addition to the list. The restaurant owners can perform CRUD operations on their restaurants. Please have a look at of the screenshots taken on my portfolio. 5️⃣Digital Lottery Mobile App using Flutter This application is built using Flutter, the cross-platform mobile application development framework from Google. The users can sign-up, sign in, and make a seven-digit lottery number selection by scrolling widgits on the UI. The user can see a list of lotteries already bought and gets notified when a lottery draw has taken place. Some screenshots are provided in my portfolio. 6️⃣Google Maps, Linkedin, and Uploadcare API Integrations I have gone through plenty of documentation provided by big platforms like Linkedin, Google, and Uploadcare to integrate their services into our apps and websites. I have implemented the OAuth 2.0 authentication and authorization to gain authorization code grant and fetch user information like email, username and profile picture. 🔴I have excellent communication skills both verbal and written in English. I am available to discuss project details and demonstrate projects on Google Meet and Zoom Meetings. Best Regards.

I’m a Full Stack Developer (MERN + Next.js) who helps startups turn ideas into scalable MVPs and SaaS products that are fast, clean, and production ready. With over 6 years of experience, I have worked on building AI powered platforms, real estate applications, marketplaces, ERP and CRM systems, and eCommerce solutions. My focus is on writing efficient, modular, and maintainable code that grows with your business. 🧑‍💻 What I Offer: ⚛️ Frontend Excellence: Modern, pixel-perfect, and responsive UI/UX using React, Next.js, and Tailwind CSS. ⚙️ Robust Backend: Scalable RESTful APIs and secure backend services with Node.js & Express. 🤖 AI & LLM Integration: Custom GPT workflows, prompt engineering, and real-time recommendations. ☁️ Cloud Deployment: AWS, DigitalOcean, or Hostinger with optimized CI/CD pipelines. 📱 Complete Solutions: Clean code, performance optimization, and seamless cross-device UX. 🧠 Tech Stack: As a full-stack developer, I have expertise in MERN Stack development & custom web development technologies: ✅ Frontend:     ⚛️ React / React (TS) / Next.js     🌐 HTML / JavaScript (ES6+)     🎨 Tailwind CSS / Material UI / Bootstrap / SCSS     📱 Responsive & Mobile-First Design ✅ Backend:     ⚙️ Node.js / Express.js     🔗 RESTful APIs / Web APIs ✅ Database:     🍃 MongoDB     🐘 PostgreSQL ✅ Dev Tools & Workflow:     📦 NPM / Yarn     🔀 Git (GitHub / GitLab / Bitbucket)     🧰 Jira / Trello ✅ Cloud & Deployment:     ☁️ AWS (S3 / EC2 / IAM)     ☁️ Digital Ocean     ☁️ Hostinger 🧠 AI & LLM Integration:     🤖 OpenAI API (GPT-3.5/4)     ✍️ Prompt Engineering     📅 AI-based Scheduling & Recommendations 💼 Industries Served: 🏠 Real Estate Platforms 🧺 Laundry & Service Booking Apps 🧑‍💻 Project Management Tools 🏫 School & Education Portals 🏥 Hospital & Medical Systems 💼 Recruitment & Job Portals 🛒 eCommerce Websites & Marketplaces 🧩 ERP & CRM Systems 🎓 eLearning Platforms 🗂️ Electronic Medical Records (EMR) 👥 Payroll & Employee Management 💬 Social Networking & Dating Platforms 🔄 Auction & Comparison Engines ✈️ Hotel & Flight Reservation Systems 🚀 Featured Projects: 🧠 AI Vacation Planner Created a smart vacation planning tool using MERN stack and OpenAI API. It integrates with the user's calendar to suggest optimized vacation plans based on their availability and helps them plan future trips with minimal leave usage. This tool focused heavily on UX/UI and personalized AI-driven recommendations. 📊 Custom Admin Dashboard Developed a scalable and modern admin panel using React.js and Tailwind CSS, built for performance and clarity. 🛒 eCommerce Platform Built a complete shopping experience with advanced filters, secure payment integration, and a responsive UI. 🏢 ERP System Engineered a robust ERP solution tailored to manage operations, inventory, and staff workflows efficiently. Let’s bring your ideas to life with clean architecture, intelligent automation, and seamless design. 📩 Ready to build something impactful? Let’s talk today!

QA freelancer with a Master's in Computer Science. Among the top 1% of expert-vetted talents on Upwork. 15 years of QA experience. I worked on core products for companies such as Swiss Re, Thomson Reuters, VeriFone, and Wolters Kluwer. I am available 40+ hours per week in your time zone. My services include: • Testing of web, desktop, and mobile (Web, Native, Hybrid, and Progressive apps) products on all test levels (component, integration, system, acceptance) • Functional testing • Non-functional testing: - Usability: Accessibility: UI, UX testing - Compatibility: Cross-browser, Cross-platform, Hardware compatibility, Operating system compatibility, Network compatibility testing - Performance: Load, Stress, Scalability, Volume, Spike, Endurance testing - Reliability: Resilience, Fault Tolerance, Recovery testing - Security: Penetration, Vulnerability, Security policy, Security audit - Localization and Internationalization testing - Data integrity testing - Data availability testing - Installation testing - Configuration testing - Response time testing - Resource utilization testing - Memory leak testing - Power consumption testing - Interrupt testing - Portability testing - External system integration testing - Availability testing - Maintenance testing - Migration testing - Rollback testing - Transaction integrity testing - Documentation testing - Workflow testing • Change-related testing (Impact analysis, Re-testing, Confirmation testing, Integration testing, Regression testing, Smoke testing, User acceptance testing) • Automation testing (GUI, API, CI/CD) • Providing Documentation (Requirements, Test plans, Test strategies, Checklists, Test cases, Use cases, User stories, Test reports, Program and methods of testing, Traceability matrices, How-to and User guides) • Agile frameworks (Kanban, Scrum) installation and maintenance, including all responsibilities of Agile Coach and Scrum Master • QA Management (Pre-sale activities, Consulting, Auditing, Providing test strategies, Implementation of testing processes, Building QA departments from scratch, Team leadership, Resource allocation, Recruitment, Interviewing, Coaching, Mentoring, Resolving conflict situations, Motivation, Performance reviewing, Providing estimates and reports) • BA (Requirements elicitation; Mockups and prototypes creating; Acceptance criteria, BRD and FRD writing) List of tools: • Operating Systems: macOS, Ubuntu, Windows, Android, iOS • Bug Tracking Systems, Dashboards, Test Case Management Tools: ClickUp, Google docs, JIRA, Micro Focus Quality Center, monday, Notion, Qase, Redmine, Smartsheet, TestRail, Tosca, Trello, VSTS, YouTrack, Zenhub, Zephyr for Jira • Agile: Miro, Parabol, PlanningPokerOnline • Design: Adobe XD, Figma, InVision App, Zeplin • Automation testing: Android Studio, Appium, Selenium, REST Assured, Allure, Docker, Serenity BDD, JUnit, IntelliJ IDEA, Eclipse IDE, WebStorm, Gradle, Maven, Bitbucket, GitHub, GitLab, SourceTree, CircleCI, Jenkins, TeamCity, JMeter, Tomcat, Autoit, T-Plan Robot, BrowserStack • Mobile Testing: Bitrise, Firebase Crashlytics, Genymotion, Google Analytics, HockeyApp, InstallOnAir, OpenStf, Pgyer, TestFlight, Urban Airship, Vysor, Xcode, Yarn • API: APIMatic, Postman, Swagger • Browsers and Plugins: Chrome, Chrome Remote Desktop, DevTools, Lighthouse, Internet Explorer, Microsoft Edge, Mozilla Firefox, Omnibug, Opera, Safari, UC Browser, WhatFont • Communication: Email services, DingTalk, Discord, Google Chat, Google Hangouts Meet, Microsoft Teams, Rocket Chat, Skype, Slack, Whereby, X Spaces, Zoom • DB: Compass, Oracle SQL Developer • VPN and Proxy: Browsec, Charles Proxy, Cisco AnyConnect, Fiddler, Pulse Secure • Blockchain: Binance, BRD, Bybit, Currencycom, Electrum, Enjin Wallet, Ganache, Hardhat, Kraken, Metamask, MEXC, OKX, OpenSea, Poloniex, Remix, SkyHarbor, Truffle, Trust Wallet, Uniswap • Recording: Jam, Gyazo Pro, LightShot, Loom, Nimbus Capture • Others: AnyDesk, Azure, CallHippo, Cawemo, Confluence, Diagrams, Dropbox, Gamma, Helpshift, Hubstaff, Lightroom, Mailpit, MS Office, OBS Studio, OpenAI, PuTTY, Photoshop, TeamViewer, TempMail, Upwork, Virtual machines, WordPress, Wowza, XMind Hardware and park of mobile devices: • iOS: iPhone 16, iPhone 13 Pro, iPhone 13, iPhone 12 Mini, iPhone Xs Max, iPhone 6 • Android: Samsung Galaxy M01 with Android 10, Xiaomi Redmi 9A with Android 10 • Desktop: Windows and macOS Note: Testing can be provided on any devices out of the list at your request

Hi, I am a web engineer with nearly 7 years full stack web development experience, working alongside teams of designers, developers, and sales & marketing professionals. My primary skills include web development and server management, writing code using various concepts including OOP, utilizing application frameworks and libraries based on JavaScript, PHP, CSS and others. I am highly skilled in a variety of platforms, development frameworks and programming languages, and can easily adapt to new platforms that are built around modern Computer Science concepts. Among them Laravel. Javascript, CSS, HTML. I understand and implement development concepts such as OOP, application design, custom implementation of modern authentication methods such as single sign-on (SSO) and token-based verification, front-end and back-end development. I can work with several stacks, among them LAMP. My highlights are: 💎 Advanced knowledge PHP, JavaScript, CSS, HTML, Vue.js, Node.js, ES6 and Babel. 💎 Advanced CMS frameworks development such as Laravel. 💎 All API integrations, such as Facebook, Instagram, Twitter, Youtube, etc. 💎 Web server setup and security. LAMP setup on Apache, Nginx, Ubuntu Server. 💎 Practical knowledge of web tooling such as WebPack, NPM, Yarn, Gulp and PostCSS. 💎 Experience with ES6 and newer ES specifications. 💎 Deep knowledge of concurrency, resiliency, caching, HTTP and REST. 💎 Experience of client-side software development. 💎 Passionate about building distributed, scalable, reliable, and low latency web services. 💎 Diagnostic and troubleshooting with Chrome/Safari developer tools. 💎 Performance and optimization for websites, web apps, server and client side scripts. 💎 Enhancing PageSpeed, server response time and performance best-practices. 💎 Experience, building single-page web applications. 💎 Experience working in an Agile environment. 💎 Experience working with distributed teams of developers, designers, sales & marketing. 💎 Configure and installing Docker. 💎 API resources and integration, data transformation. PHP - simplehtmldom, regular expressions & string manipulation. ✅ I never take any project which I think I can't do in time. ✅ I always meet my client's Deadline. ✅ I provide hundred percent 100% support after the contract ends for 1 month.