✅ 2000+ Hours Worked ✅ 10+ Years of Experience ✅ 50+ Projects Completed ✔ PHP, Laravel, Yii2, PHPUnit, OOP, MVC, SOLID ✔ MySQL, MongoDB, ElasticSearch ✔ JavaScript, Node.js, Ajax, jQuery, Socket.io ✔ Docker ✔ Nginx, Apache ✔ Steam API ✔ Git ✔ Linux administration

We provide consultancy services in IT Infrastructure monitoring (DevOps and SRE) implementation and administration, Remote IT Infrastructure Support for Linux administration, Windows administration, server monitoring and Network Monitoring. We can work during US/Europe/Asia Time zones. I am an expert with 25 years of IT infrastructure-related services. I have a team who are expertise in IT Infrastructure , Bigdata and Web development. Expertise in below: Zabbix ElasticSerach Grafana Prometheus Jaeger OpenTelemetry Zipkin Signoz Datadog Fluentbit Beats Telegraf Ninjatrader and Metatrader Automation AWS, GCP and Azure Cloud Administration Linux Administration Windows Administration Bigdata (Hadoop, Hive, Spark, Teradata) Web Development Backup tools ServiceNow Integration Event Forwarder/Event Filtering/Event Enrichment/Event Correlation Alert Management/Alert Blackout and Brownout, Alert Noise reduction Prepare high level design, detailed design and technical IT Infrastructure architecture

I have a Bachelor of Engineering in Computer Science from Gujrat Technological University with 4+ years of experience in development. On basis of this I can help you to create a project from scratch, help you on your on going project and provide support on your job for sure. So according to your needs I will provide the best and suitable solutions. My priorities are quality and respect of your satisfaction, deadlines and budget. I love to share my passion and love for development. Feel free to contact me and let's get the conversation going on.

I am an Engineer who has multidisciplinary experiences and is expert in Big Data Processing and API Development. I am experienced in creating and implementing scalable data architectures, developing and optimizing ETL (Extract, Transform, Load) processes, and ensuring data quality and integrity. I am also experienced in developing APIs and providing the best solutions for the tech problems.

A Senior Architect with extensive experience of more than 15+ years in building time sensitive and real-time system architectures, I have a strong background in Java, C#, Python, and NodeJS. With a track record of success in developing distributed file systems, intelligent transport systems, digital media and transformation infrastructures, and implementing PKI systems, I bring a wealth of knowledge to the table. I have also gained significant expertise in data and event-driven architecture, allowing me to design and implement scalable, high-performance solutions for clients. My experience working with stream processing frameworks such as AWS Kinesis, as well as message brokers such as RabbitMQ& AWS MQ, has enabled me to build real-time data pipelines that can process high volumes of data and respond to events in real-time. In addition to my technical expertise, I possess excellent leadership skills, enabling me to guide teams in delivering complex projects within challenging timeframes. My experience working with AWS has allowed me to become proficient in cloud-based architectures, and I have leveraged this knowledge to design and deploy scalable, high-performance solutions for my clients. Overall, I am a result driven Tech Lead who combines technical expertise with strong leadership and project management skills to deliver successful outcomes for clients, with particular strengths in data and event-driven architecture. EXPERTISE IN DOMAINS - Intelligent Transport Systems (Architecture & Implementation) - Digital Content Management System (Live & Recorded content distribution and playback) - Banking & Fintech - PKI (Certificate Issuance & Management, digital certificates, security compliance) Healthcare - eCommerce & Payment Systems - Cloud (AWS) Architecture & Development

📌Software Engineer. Laravel developer. 📌IT infrastructure design, integration, support and maintenance. 📌API design and develop. Data synchronization. 📌DevOps experience. 🎓Master's degree 💪Over 15 years of experience with LAMP/LEMP (Linux, Apache/Nginx, MySQL, PHP) 💪Over 5 years of experience as a Backend Laravel developer. ✔Proficiency with Object Oriented Programming(OOP) concepts using PHP7/8. ✔Experience in SQL queries including performance tuning, stored procedures, query optimization, managing indexes and tables. ✔Proficiency with fundamental front end languages such as HTML, CSS, and JavaScript. ✔Familiarity with JavaScript frameworks such as jQuery, Bootstrap, React and Vue. ✔Proficiency with server-side languages such as PHP, Java, Golang ✔Proficient in databases such as MySQL, Maria DB, SQLite and NoSQL technologies such as Redis, Memecached, etc.. ✔Experience in quality assurance and unit testing, acceptance testing, and integration testing. ✔Security best practices and vulnerability assessments 🛠️CI/CD 🛠️Cloud-based infrastructure design and implementation 🛠️Containerization technologies (Docker) 🛠️Version control systems (Git) 🛠️Technology research and recommendations 🛠️Monitoring and alerting systems, performance optimization and log analysis 🛠️Script development and automation 🛠️Networking and security fundamentals 🛠️Collaboration and communication with development teams 🛠️System documentation and training Involved in Agile methodologies in development. Good problem-solving skills. Attention to detail. Meeting both technical and consumer needs. Staying abreast of developments in web applications and programming languages. Good communication skills. Quick learning ability. ⭐Backend - Laravel ecosystem (Forge, Nova, Sanctum, Horizon, Filament, Breeze, Jetstream) .Multi-Tenant SaaS Solutions ⭐Frontend - ReactJs / VueJs / Jquery+Bootstrap. AdminLTE, React-admin (marmelab) ⭐Mobile - React Native+EXPO , JAVA

I am Muoi Nguyen (Teddy), Top Rated Plus Senior Developer with 6+ years and 21,000+ hours on Upwork. I build and scale production web apps the modern way — using AI-agent coding tools (Claude Code, Cursor) in my daily workflow to ship faster and cleaner than the old line-by-line approach. I've engineered applications that serve hundreds of thousands of users and handle tens of thousands of concurrent users — including real-time, WebSocket-based features — so I design for real load: caching, async processing, horizontal scaling, and solid cloud infrastructure, not just code that works on a demo. What I do: ✅ Full-stack web app development (Python/Django, React/Next.js) ✅ High-scale architecture — apps serving 100K+ users, 10K+ concurrent ✅ Real-time apps — WebSocket / live updates, chat, notifications, dashboards ✅ DevOps & cloud — AWS, Google Cloud, Azure, Docker, Kubernetes, CI/CD ✅ LLM API integration — AI-powered apps with OpenAI & Anthropic (Claude) APIs ✅ API development & integration (REST, GraphQL) ✅ ETL & automation / crawling pipelines ✅ POC & MVP development — fast, using AI-assisted workflows How I work (the AI-era workflow): ⚡ AI-agent coding tools (Claude Code) for rapid, well-tested delivery ⚡ Agentic/automated workflows for repetitive engineering tasks ⚡ Integration-test automation (Playwright) so features ship verified ⚡ Clear, structured collaboration — I plan, build, review, and test in tight loops Tech: Frontend: React, Next.js, TypeScript, Tailwind, SCSS, HTML5/CSS3, JavaScript, jQuery Backend: Python, Django, DRF, Django Channels, Flask, FastAPI, Celery, Node.js, Express, WebSocket, GraphQL (Apollo) Data: PostgreSQL, MySQL, MSSQL, Elasticsearch, MongoDB, Redis, Firestore Cloud/DevOps: AWS, Google Cloud, Azure, Docker, Kubernetes, NGINX, CI/CD AI: OpenAI API, Anthropic Claude API, LLM app integration, AI-agent dev tooling (Claude Code, Cursor) If you want a senior developer who builds for scale and already works the way the best teams are moving toward, let's talk.

Hi, I'm Waris and I'm a Top Rated Plus freelancer with over 7 years of experience as a Full Stack Engineer and around 8000 work hours done on Upwork alone! I've been helping startups and enterprises build scalable, high-performance web apps, APIs, AI integrated solutions and cloud-native systems. I specialize in backend development using Python (Django, FastAPI), GoLang, and Node.js, and have delivered large-scale applications in industries like SaaS, healthcare, CRM/ERP, marketing, and real estate. I work end-to-end from system architecture and database design to frontend integrations and CI/CD deployments using modern cloud services like AWS and Azure. 🛠 Core Technologies & Tools Backend: Python (Django, FastAPI), Golang, Node.js, .NET Core, Java Spring Boot Frontend: React.js, Next.js, Vue.js, Nuxt.js, Angular Databases: PostgreSQL, MySQL, MSSQL Server, MongoDB, Redis, Elasticsearch, DynamoDB DevOps & CI/CD: Docker, Jenkins, GitHub Actions, GitLab CI/CD, Testcontainers Cloud Platforms: AWS (Lambda, S3, RDS, Cognito, API Gateway, SES, SQS), Azure (Logic Apps, Functions), DigitalOcean Functions Message Queues: Kafka, Azure Service Bus API & SDKs: REST, GraphQL, gRPC, Stripe, Mailgun, GitLab SDK ERP/CRM Expertise: Workflow automation, custom modules, invoicing systems, multi-tenant CRM ETL & Data Pipelines: High-frequency, high-volume data transformation and sync systems Authentication & Security: OAuth2, JWT, Cognito, Role-Based Access Control 📌 Why Clients Choose Me End-to-End Ownership: From architecture to deployment, I manage complete solutions. Business Logic Expertise: Deep understanding of CRM, invoicing, MRP, and enterprise workflows. Fast & Reliable: Deliver high-quality code quickly, often ahead of schedule. Scalable Systems: Build platforms that grow with your business and handle scale effortlessly. Clear Communication: Regular updates, proactive problem solving, and strong collaboration..

🚀 Senior AI/ML Engineer | Deep Learning & Generative AI Architect 🏆 Top-Rated Freelancer with 10+ Years of Applied AI Engineering Experience 🌟 Specialized in Machine Learning, Deep Learning, LLMs, Computer Vision & MLOps 💼 2300+ Hours of High-Impact AI Development Delivered 📞 Available for Full-Time Engagements (40+ Hours/Week) 🏅 100% Job Success Rate – Delivering Production-Grade AI Systems As a Senior AI/ML Engineer, I specialize in designing, developing, and deploying production-grade Artificial Intelligence solutions that transform complex data into measurable business value. With over a decade of experience in Machine Learning, Deep Learning, Data Science, and Software Engineering, I have delivered intelligent systems across finance, healthcare, enterprise automation, e-commerce, and research-driven applications. My expertise spans the complete AI lifecycle, including data engineering, feature engineering, model development, optimization, deployment, monitoring, and MLOps. I build scalable, explainable, and high-performance AI systems that operate efficiently in production environments. I have extensive experience with TensorFlow, PyTorch, Scikit-Learn, Hugging Face Transformers, and modern cloud technologies. My focus is on building predictive models, Generative AI applications, recommendation systems, intelligent automation platforms, and autonomous decision-making systems. Core Areas of Expertise Machine Learning & Predictive Analytics Development of supervised and unsupervised learning solutions using XGBoost, LightGBM, CatBoost, Random Forest, SVM, KNN, and ensemble learning techniques for classification, regression, forecasting, anomaly detection, and recommendation systems. Deep Learning & Neural Networks Building advanced architectures including CNNs, RNNs, LSTMs, GRUs, Autoencoders, GANs, and Transformers for computer vision, NLP, time-series forecasting, and multimodal AI applications. Generative AI & LLMs Development of enterprise AI applications using GPT, BERT, LLaMA, Retrieval-Augmented Generation (RAG), prompt engineering, vector databases, semantic search, AI agents, and LLM fine-tuning. Natural Language Processing (NLP) Creating intelligent NLP solutions for sentiment analysis, semantic search, document ranking, text classification, NER, question answering, summarization, and conversational AI. Reinforcement Learning Designing Deep Reinforcement Learning systems using DQN, PPO, Actor-Critic, and Policy Gradient algorithms for algorithmic trading, optimization, and autonomous decision-making. Technical Skills & Technologies Frameworks: TensorFlow, PyTorch, Keras, Scikit-Learn, Hugging Face, OpenCV Machine Learning: XGBoost, LightGBM, CatBoost, Random Forest, SVM, Ensemble Learning Generative AI: GPT, BERT, LLaMA, RAG, LangChain, AI Agents, Fine-Tuning Databases: PostgreSQL, MySQL, MongoDB, Redis, Elasticsearch, FAISS, Pinecone Cloud & MLOps: AWS, Azure, GCP, Docker, Kubernetes, MLflow, CI/CD Pipelines Selected Projects Algorithmic Trading: AI-powered trading and portfolio optimization systems using Deep Reinforcement Learning and predictive analytics. Generative AI Applications: RAG-powered chatbots, enterprise knowledge assistants, and intelligent document processing solutions. Computer Vision: Gesture recognition, image classification, object detection, and real-time inference systems. Healthcare AI: Predictive models for heartbeat recognition, physiological signal analysis, and patient risk assessment. NLP Solutions: Semantic search, multilingual document ranking, information retrieval, and text analytics platforms. Core Competencies Machine Learning | Deep Learning | Generative AI | LLMs | NLP | Computer Vision | Reinforcement Learning | MLOps | Predictive Analytics | Data Science 📈 Ready to Build Enterprise-Grade AI Solutions and Intelligent Automation Systems? Let's Connect! Keywords:- Machine Learning, Deep Learning, Artificial Intelligence, Generative AI, Large Language Models, LLMs, NLP, Natural Language Processing, Computer Vision, Reinforcement Learning, Deep Reinforcement Learning, TensorFlow, PyTorch, Keras, Scikit-Learn, Hugging Face, Transformers, GPT, GPT-4, BERT, RoBERTa, T5, LLaMA, Mistral, RAG, Retrieval-Augmented Generation, AI Agents, Agentic AI, LangChain, LangGraph, Prompt Engineering, Fine-Tuning, LoRA, QLoRA, Embeddings, Semantic Search, Vector Databases, Pinecone, FAISS, Weaviate, ChromaDB, XGBoost, LightGBM, CatBoost, Random Forest, Gradient Boosting, SVM, KNN, Decision Trees, Ensemble Learning, Feature Engineering, Feature Selection, Data Preprocessing, Data Cleaning, Time Series Forecasting, Predictive Analytics, Statistical Modeling, Bayesian Analysis, Anomaly Detection, Recommendation Systems, Classification, Regression, Clustering, Dimensionality Reduction, PCA, AutoML, Explainable AI, XAI, SHAP, LIME, CNN, RNN, LSTM, GRU, Autoencoders, GANs, Diffusion Models, Stable Diffusion, Object Detection, Image Classification, OCR, OpenCV.

I architect and deliver production-grade backend systems that scale from high-throughput event pipelines to complex enterprise integration platforms. With 8+ years of hands-on experience in Java and the Spring ecosystem, I specialise in building microservices, RESTful APIs, and integration layers that handle real business complexity. My core strength lies in Apache Camel and Enterprise Integration Patterns (EIP), designing systems where data flows reliably across distributed services while integrating with third-party APIs and legacy platforms. At Narvar, I worked in the carrier integrations team where I helped reduce carrier onboarding timelines from days to hours, contributed to platforms processing 10M+ webhook tracking transactions daily, and helped replace legacy tooling with automated, scalable workflows. I also designed REST APIs for carrier booking flows, including return-via-pickup capabilities alongside traditional label-based returns. Earlier in my career, I built ingestion and streaming modules integrated with enterprise payment systems, gaining deep experience in high-throughput backend platform design. Currently, I am building a middleware data integration platform using Apache Camel and Change Data Capture (CDC) to enable secure and scalable data synchronization across multiple external systems. I bring strong engineering fundamentals including SOLID principles, Test-Driven Development (TDD), event-driven architecture, and distributed systems design. I focus not only on writing code but on designing systems that are resilient, scalable, and maintainable in production. ********CORE EXPERTISE******** Java (Core & Advanced) REST API Development Apache Camel & Enterprise Integration Patterns (EIP) Microservices Architecture Distributed Systems Event-Driven Architecture System Integration & Middleware Messaging Systems (Kafka, Pulsar, RabbitMQ) ********FRAMEWORKS AND TECHNOLOGIES******** Spring Ecosystem Spring Boot, Spring Cloud, Spring Security, Spring Integration, Spring AOP, Spring Actuator, Micrometer Messaging and Integration Apache Camel, Apache Kafka, Apache Pulsar, RabbitMQ, Spring JMS Build Tools Apache Maven Testing JUnit5, Mockito, Rest Assured, Postman, Apache JMeter ORM JPA, Hibernate, MyBatis Databases PostgreSQL, MySQL, Redis, Elasticsearch, Apache Cassandra Infrastructure and Deployment Docker, Kubernetes, CI/CD, CircleCI Cloud AWS (Lambda, S3, SQS, EC2) Monitoring Prometheus, Grafana Other Tools HashiCorp Vault, Auth0, Google Cloud Scheduler, Git Frontend (Basic) HTML5, CSS, Thymeleaf Recently, I started my freelance journey full-time, helping teams build scalable backend systems, APIs, and enterprise integration platforms. If you are looking for help with Java backend systems, microservices, or complex integrations, feel free to reach out. Vaishali Gupta Senior Engineer, Distributed Systems