I have 8+ years of experience in consulting and developing Web applications. As a full-stack developer, I assist clients in transforming their ideas into a complete product. I can consult, build, set up, and maintain web applications, particularly in the Open-Source domain. Why me? ------------------------------------------------------------------------------------- *24*7 Availability @skype *100% Bug-Free Code *Provide High-Quality Services *Good Listener and Good Communication Skills. *Use Latest IDEs for Development. *Free 180 Days Support after Completing the Project/Assignment. ---------------------------------------------------------------------------------- I have experience with the following technologies: - React.js/Angular.js - Python/Django, - GraphQL - API (REST framework) - Flask - Elasticsearch - Data scraping - MySQL, PostgreSQL, SQLite - HTML/CSS (HTML5/CSS3) - JavaScript, jQuery (Bootstrap, Foundation, SASS, LESS) - Unix, Mac, Windows operating systems I like to be involved in the full life-cycle of the project, from requirement analysis, initial design, and implementation through to deployment and production support

Hi, I'm an experienced senior backend Developer, and I'm very interested in PHP and Symfony Framework. I have consistently delivered projects on time and under budget. I am available to chat by IM, email and would be happy to set up a convenient time to discuss the application you're moving to and some ideas.

With 15 years in the software industry, I’ve gained extensive experience in driving projects from ideation and system requirements, cost/time estimations to successful launch, collaborating with cross-functional teams to ensure alignment across engineering, product, design, and business functions. I’ve worked across various industries, including 3D graphics, transportation, IoT, AV systems and grocery, which helped me develop a diverse skill set that spans across AI/ML, project management and technical expertise in full software engineering stack including backend (Node.js, Go, Python), frontend development (React, Next.js), cloud infrastructure (AWS, Kubernetes), mobile app (both iOS and React Native), embedded systems (OSs/RTOS and IoT systems) and application security. Mobile/Frontend/Embedded/IoT (7 years): In the past, I’ve developed the Moove/Dantaxi app (a leading taxi system in Denmark being used by millions of people) from scratch where I led and grew the team. I’ve worked in diverse workplaces in different setups - from startups to scale ups to corporations. Backend/Cloud/DevOps (5 years): My current responsibilities at Quixel | Epic Games Inc. mainly include developing scalable and resilient backend systems for 3D content production and AWS Cloud Infrastructure in order to fuel the metaverse content creation. Previously I developed the backend system for the Epic Games' MetaHuman.

Hello, Thank you for checking out my profile, I'm an independent freelancer working in software dev for more than a decade now. Below is a quick overview of my core strengths as a solution developer and technical architect. Technical Overview: • Coded expense manager, flight data service, Battleship games, Bidding system, weather monitoring service, etc for multiple users. • The expert mode in REST API's development using Spring Boot 3/Spring Cloud Streams, Spring Security, and Spring Gateway along with microservice architecture. • In Databases, for RDBMS (Postgres, Mysql, Clickhouse), NoSQL (AWS Dynamo, MongoDB, Redis), and Elastic Search. • Extensively worked in AWS techs like SQS, SNS, Fargate (ECS), and MSK (Kafka). • Dockerized microservices and created CI CD pipeline for service deployment . • Have designed multiple complex systems from zero to full-fledged deployment in production. • A problem solver for any complex system with minimal guidance. You can count on me. How can I help you: • Have worked in multiple domains like banking, financial, telecom, gaming, travel, supply chain, etc so can help with any type of project. • Designed complex architecture in the past so can help in technical architecture space for pros and trade-offs of the current system. • Consult for any software development that needs data management or a high level of concurrency or even if you are stuck at an unknown place during development. Thanks. Looking forward to working with you. On Upwork have worked on Google API, AWS, Websocket, Otel, MongoDB, Postgres and Elastic search.

🥇Expert-Vetted (Top 1% on Upwork) 📈 500+ hours ⭐5-Star ratings across all projects 💼 10+ years of experience. I DO NOT use any AI coding tools in my work. No I am not a dinosaur. For me it is faster to write the code down nigher to express to llm what I need and how to do it and then fix it errors. In a day when it chamges there will be no need for software developers, for software engineers maybe. I can use llm when I generate tests (works good as skeleton for boilerplate coding) or when I am working with frontend. One langue to another convertor is also a good tool. I'm an experienced Backend Software Development Engineer, and LLM researcher and have experience in working at some of the best AI labs in the world. During my tenure at Microsoft AppCenter, I successfully deployed ML models into production using Azure ML and designed highly scalable APIs in Python, C, and C++. My code is instrumental in facilitating over a hundred thousand tests daily on real hardware for Android and iOS devices. Before that, I worked on various Python/NodeJS projects. Now as a lead developer or a team lead or an individual freelancer I am helping startups to rock the thing! Overcoming completes with building high advanced systems and bringing AI revolution closer. Some of the feedback given by customers across the world: - Kirill is absolutely best freelancer I worked with... - Working with Kirill was a fantastic experience. He was insightful and helpful in all aspects of the development process... - Rockstar! ... Hardcore Linux nerd, 15 years with Linux as my main OS on my workstation. PostgreSQL evangelist. And believing that mobX can save the world. Are you ready to apply high-quality AI in your company? If you're looking for a quality professional, feel free to drop a line! When you invest in my services, you're not just hiring a developer - you're partnering with a strategic technology advisor who bridges the gap between AI capabilities and real business results. My track record speaks for itself through consistently exceptional client reviews.

🚀 Data Engineer & Solution Architect | Scaling Data Platforms 10× Without Breaking Them I design data systems that don’t just run, they scale, perform, and stay reliable under real-world pressure. With 7+ years building enterprise-grade platforms, I’ve seen the same story repeat: A pipeline works at 10M records… then collapses at 100M. Costs spiral. Latency explodes. Nobody wants to touch the legacy system. That’s where I come in. 🧠 What I Actually Deliver I architect cloud-native data platforms built for tomorrow not quick fixes for today. ✔ Migrate fragile legacy systems to modern, resilient architectures ✔ Design scalable data lakes and lakehouses ✔ Optimize pipelines bleeding money and compute ✔ Build real-time analytics for mission-critical decisions ✔ Create foundations ready for AI/ML workloads Result: Systems that grow with your business instead of holding it back. ⚙️ Deep Technical Expertise Across the Stack ☁️ Cloud Platforms AWS: Glue, EMR, Redshift, Kinesis, S3, Lambda, Lake Formation, DMS, MSK, RDS Azure: Data Factory, Synapse, Databricks, DevOps GCP: Dataflow, Cloud Functions, Cloud Storage 🔥 Big Data & Streaming Apache Spark (Scala & PySpark) • Kafka • Kinesis • NiFi • Hadoop Ecosystem • Airflow • Delta Lake 💻 Programming Python • Scala • SQL • Shell • Java 🗄️ Databases & Storage PostgreSQL • MySQL • Oracle • SQL Server • MongoDB • Cassandra • DynamoDB • Elasticsearch 🛠️ DevOps & Infrastructure Docker • Kubernetes • OpenShift • Terraform • Jenkins • Ansible • Git 📊 Observability & Governance CloudWatch • ELK • Grafana • Athena IAM • Lake Formation • Encryption • Audit Logging • Okta • Cognito 🏢 Enterprise Experience That Matters I’ve delivered production systems for Fortune 500 organizations across finance, energy, hospitality, and SaaS handling hundreds of millions of records daily. From ingestion → transformation → real-time analytics → security → DevOps automation — I design the full lifecycle. 🏆 Proven Impact ✔ Re-architected legacy pipelines → 5× performance boost & 60% cost reduction ✔ Built event-driven systems processing 500M+ records/day ✔ Delivered secure data lakes with row-level governance ✔ Reduced MTTR by 70% with end-to-end observability ✔ Led zero-downtime cloud migrations ✔ Secured $2B+ transaction data with encryption platforms 🤝 Best Fit For Organizations That Need 🔹 Cloud migration with strong architectural guidance 🔹 Performance or scalability bottlenecks 🔹 Data platforms for AI/ML initiatives 🔹 Multi-cloud or hybrid strategies 🔹 Long-term reliability over quick hacks ⚠️ Not a Fit For ❌ One-off scripts or basic SQL tasks ❌ Temporary data cleanup work ❌ Short-term patch solutions I focus where architecture decisions create lasting business value. 💬 What Clients Value Most Clear thinking on complex problems Communication executives understand Engineering teams trust Systems built to last 👉 If your data platform needs to scale, stabilize, or modernize then let’s talk.

I’m a Full-Stack Developer and AI Automation Engineer specializing in building scalable SaaS products and AI-powered applications. I help startups and businesses design, develop, and deploy modern web platforms, AI integrations, and automation systems. My focus is always on clean architecture, performance, security, and long-term scalability. 🚀 What I can help you build Full-stack SaaS applications (MVP to production) AI-powered web apps using OpenAI / Claude / LLMs AI Agents with tool usage and multi-step workflows RAG systems (Retrieval-Augmented Generation) for chatbots and knowledge bases Document intelligence (PDF parsing, extraction, summarization, classification) Browser automation workflows (web scraping, form submissions, data collection) CRM and business workflow automation Secure backend systems with authentication and role-based access Admin dashboards, internal portals, analytics panels 🧠 AI & Automation Expertise Prompt engineering and structured outputs (JSON / function calling) LangChain and LangGraph agent systems Vector databases, embeddings, semantic search Chunking strategies for high accuracy retrieval Multi-agent workflows and automation pipelines API-based AI integrations and custom AI tools 💻 Core Tech Stack JavaScript / TypeScript MERN Stack (MongoDB, Express, React, Node.js) Next.js (Full-stack development) OpenAI, Claude, LangChain, LangGraph Pinecone / FAISS / ChromaDB (vector search) AWS (EC2, S3, Lambda, IAM, CloudFront, Cognito) REST APIs, Webhooks, third-party integrations ✅ How I work Clear communication and frequent progress updates Clean, production-ready, maintainable code Strong focus on security and scalability Business-first mindset (I care about outcomes, not just code) If you're looking for someone who can build your product end-to-end and integrate AI the right way, feel free to contact me.

I am experienced in building ECommerce websites using latest technology stack which can scale to large customer base across multiple geographies. I am a seasoned technology leader who is performance-driven, result oriented, strategic, and process-focused in creating software solutions to enhance business productivity in Digital Commercespace. I am data driven and agile mindset in providing value add to the customers with incremental product development. Supports client account teams in running multiyear initiatives and technology roadmaps.

OPEN FOR LONG TERM PROJECT I am a full stack developer with 12+ years of experience delivering enterprise-grade projects for globally-renowned companies such as R Systems, UnitedHealth Group, and most recently, Publicis Sapient. -Exposure of end-to-end development of software products from requirement analysis to system study, coding, testing, debugging, documentation, and implementation. -Helped in building the architecture and design of several web solutions and distributed systems from scratch. I do have working experience in designing and building scalable modules. o I work extensively on optimization and scaling the micro services implemented with Java 17 & Java 21, Python, NodeJS, Kotlin, Spring Boot 3, Spring AI, REST Web Services, Microservices, ELK Stack, Kafka, and GraphQL. o AWS: S3, SES, SNS, Setup EC2, RDS, API Gateway, ECS, Fargate, AWS code build deploy pipeline, AWS-Lambda, CDN(CloudFront), Security Group, Step Function, Serverless o Docker Implementation, Docker Image Setup, Jenkins CI/CD, Liquibase o Design Patterns: Singleton, Factory, Builder, Strategy, Decorator o Web Services: Restful Web-services, SOAP, and Micro-services o Databases: MySQL, Oracle, PostgreSQL, Mongo, Dynamo DB I have remote work experience and strong communication skills & domain expertise includes banking, healthcare, education, and insurance.

Senior Data Architect & AWS Data Engineering Manager | 12+ Years Enterprise Experience I help enterprises design, build, and govern scalable data platforms that drive real business decisions — not just store data. Currently leading enterprise-wide data transformation at Publicis Sapient as AWS Data Architect for Omantel's Customer Personalization Platform — architecting real-time analytics pipelines, Data Governance frameworks using AWS DataZone, and Agentic AI solutions for advanced customer intelligence. Previously at DELL Technologies, I led migration of DELL's global data lake from Azure to on-prem Greenplum, built data pipeline strategies, and supported MLOps teams across multiple business units. What I bring to your project: End-to-end Cloud Data Architecture (AWS-certified: Data Analytics Specialty + Cloud Practitioner) Big Data Platform design & migration (Hadoop, Spark, Kafka, Hive, Airflow) Data Governance & Cataloging (AWS DataZone, Alation, Collibra) ETL/ELT pipeline engineering (Airflow, NiFi, Talend, SSIS, ODI) Database expertise: Greenplum, PostgreSQL, Oracle RAC, MSSQL Server Infrastructure as Code: Terraform (HashiCorp Certified) I've delivered data solutions across Telecom, Fintech, Banking, and Government sectors in Egypt, the Gulf, and globally. Whether you need a full architecture review, a migration plan, or hands-on engineering — I deliver.