🔹 I build data platforms that handle petabytes of data, millions of events, and ensure zero-tolerance downtime. I’m a senior data engineer and cloud architect with over a decade of experience building production-grade, petabyte-scale data platforms for high-growth, data-intensive businesses. I specialize in real-time analytics, low-latency systems, and cloud cost optimization — the kind of work that breaks if done wrong and gets noticed by leadership when done right. 🚀 Proven Business Impact - +18% revenue uplift by detecting and blocking high-risk fraud users in a real-time data platform - Less than 30ms read/write latency for high-DAU applications handling millions of events per day - Production-grade pipelines supporting analytics & ML with strict data quality guarantees What I’m Typically Brought In For - Stabilizing broken or unreliable data pipelines - Designing real-time or near-real-time architectures - Reducing Snowflake/cloud warehouse costs Core Stack: - Cloud & Warehousing: AWS, GCP, Snowflake, Databricks - Data Engineering: Spark, Kafka, Airflow, dbt, Terraform - Real-Time Systems: Kafka, Flink, DynamoDB - Architectures: Data Lakes, Warehouses, Lakehouses How I Work I ship systems that survive production, scale, and audits. That means clear scope, measurable outcomes, and no “hope it works” engineering. 📌 If your data platform is a bottleneck or a liability, let’s fix it properly. Message me to discuss your system and constraints.

Is your legacy Java monolith slowing down your deployments or driving up cloud costs? I help companies modernize their tech stack using Scala, Cats Effect, and Akka/Pekko to build resilient, functional systems that scale. Moving from Java to Scala isn’t just a syntax change—it’s a performance shift. I specialize in the "Strangler Pattern," allowing you to migrate critical modules into high-performance microservices without interrupting your production environment. Why work with me? - Pure Functional Expertise: I leverage Cats and Cats Effect to build type-safe, asynchronous systems that eliminate entire classes of runtime bugs. - High-Concurrency Mastery: Using Akka and Pekko, I design actor-based systems capable of handling massive throughput and real-time data processing. - Modern Data Stack: Deep experience with Kafka for event-streaming and Apache Pinot for real-time analytics. - Cloud Optimization: I don't just write code; I tune the JVM. I’ve helped clients slash GCP/AWS spend by optimizing resource allocation and implementing smart autoscaling. A "Big Tech" partner for your US team: Based in the EU, I provide a strategic time-zone overlap. I can build while your US team sleeps and be available for syncs during your morning—creating a high-velocity, 24-hour development cycle.

Hola, My name is Art. I'm a software engineer with strong knowledge of algorithms and data structures. I'm proficient in next languages and technologies: - .NET Stack: C#, WPF, WCF, ASP WebAPI, ASP MVC. - Scala: Play Framework, Akka, SBT, Spark, Hadoop; I'd like to provide good documentation and high-quality software through a lot of automation - unit tests, integration test (with Docker for mocking external services/db).

🚀 Building AI Products That Survive Beyond the Demo 🤖 AI-Native Product Development & Enterprise AI Engineering ⚡ 22+ Years of Software Engineering Excellence ⚡ 8+ Years of AI, Machine Learning & Automation Experience ⚡ 2,000+ Successfully Delivered Projects on Upwork ⚡ Top Rated Plus Talent ⚡ AI Agents, LLM Applications, Automation & Intelligent Workflows ⚡ Scalable Architectures Designed for Real Users and Real Growth ⚡ Trusted by Clients Across 20+ Countries ⚡ Helping Businesses Turn AI Hype into Measurable Business Results My goal is simple: build intelligent software that delivers measurable business results. I specialize in AI, Python, and Machine Learning while leading multidisciplinary teams capable of delivering full-cycle software solutions across a wide range of technologies—from MVPs to enterprise-scale platforms used by thousands of users worldwide. 🔥 WHAT YOU GET ✔ AI Development that automates processes, reduces operational costs, and accelerates business growth. ✔ Production-ready Python backends designed for scalability and long-term maintainability. ✔ Full-stack delivery—from UI/UX to cloud deployment and ongoing support. ✔ A single technology partner capable of building complete products end-to-end. 🏆 ACHIEVEMENTS ✔ 2,000+ successfully completed projects as a Top Rated Plus professional. ✔ Delivered products used by 20,000+ active users across SaaS, Healthcare, FinTech, and Marketplace platforms. ✔ Improved operational efficiency by 30–40% through AI-powered automation. ✔ Reduced repetitive manual workloads by up to 65% using AI Agents and intelligent workflows. ✔ Built scalable ML pipelines processing terabytes of data daily. ✔ Accelerated MVP launches by 30–40%, helping startups reduce technical risk and reach the market faster. ✔ Led teams of AI Engineers, Python Developers, Full-Stack Developers, Data Scientists, QA Engineers, and MLOps Specialists. 🚚 SOLUTIONS WE DELIVER As an AI Developer and AI Agent Developer, I build Generative AI applications, AI platforms, AI chatbots, AI copilots, AI Builders, AI Trading Bots, OpenAI-powered products, Azure AI solutions, Retrieval-Augmented Generation (RAG) systems, semantic search engines, knowledge assistants, and AI Model Integration workflows using OpenAI API, ChatGPT API Integration, OpenAI Codex Prompt, Claude integrations, and modern LLM architectures. As a Python Developer, I design scalable applications using Python, FastAPI, Django, Flask, REST API Development, GraphQL, API Integration, Microservices, Database Development, Software Debugging, and Website Optimization practices. As a Full-Stack Development partner, our team delivers Web Applications, AI App Development, Ecommerce Websites, Website Redesign, Browser Extensions, Google Chrome Extensions, Platform Plugins, Payment Gateway Integration, CRM Integrations, and Odoo Development solutions tailored to business goals. ⚒️ TECHNOLOGY ECOSYSTEM Backend expertise includes Python, Node.js, PHP, Java, Kotlin, Scala, Ruby, C#, .NET Framework, ASP.NET, ASP.NET MVC, Micronaut, Jakarta Server Faces (JSF), Jakarta Server Pages (JSP), and SQL. Frontend development capabilities cover JavaScript, TypeScript, HTML, HTML5, CSS, CSS3, Sass, Bootstrap, React, Angular, AngularJS, Vue.js, jQuery, CreateJS, Adobe Photoshop, and Google Analytics to create engaging, conversion-focused user experiences. Our data expertise spans PostgreSQL, MySQL, MongoDB, Microsoft SQL Server, SQLite, MariaDB, Oracle Database, Oracle NoSQL, Neo4j, Azure Cosmos DB, Amazon DynamoDB, Amazon Aurora, Apache Cassandra, LevelDB, Realm Database, and other enterprise-grade database technologies. Cloud, DevOps, and infrastructure capabilities include Amazon Web Services (AWS), Microsoft Azure, Google Cloud Platform (GCP), Docker, Kubernetes, CI/CD pipelines, Cloudflare, Apache HTTP Server, NGINX, Apache Tomcat, Microsoft IIS, Oracle WebLogic, Eclipse Jetty, LiteSpeed, WildFly, GlassFish, IBM WebSphere, and Odoo environments. We also leverage Git, HTTP protocols, Scrapy, JUnit, Database Architecture best practices, and modern engineering workflows to ensure secure, scalable, and maintainable software delivery. 🤝 LET'S BUILD TOGETHER Whether you need AI Development, AI Agent Development, RAG implementation, OpenAI API Integration, ChatGPT-powered products, Full-Stack Development, API Development, Ecommerce Solutions, Enterprise Platforms, Website Optimization, or end-to-end software delivery, I'm ready to help transform your ideas into scalable products that deliver real business value. Let's discuss your project and build something exceptional together.

Looking to seamlessly integrate IT with your business goals - and do it fast? 🚀 Whether you need a full product built from scratch, modernization of a legacy application, or staff augmentation to strengthen your in-house team - we’ve done it all for hundreds of clients worldwide. I lead a team of 200+ vetted in-house engineers across every major web and mobile tech stack, ready to match you with the right expert within 24 hours. When you hire from us, you work directly, 1-on-1, with your chosen engineer - no middle layers, no constant handoffs. We back every engagement with clear guarantees and stay available for support. 🧑‍💻 About Me With 10+ years in IT management and a technical background, I’ve grown from developer to Project Manager, to PMO, to Head of Delivery — overseeing over 680 completed projects on Upwork with a 100% Job Success Score and 80+ Clutch reviews (avg. 4.8★). My specialization is in building self-managed teams that deliver end-to-end - from idea to launch - so you can focus entirely on your business while we handle delivery. 🛠 Areas of Expertise Full-Stack Development: React, Angular, Vue, Node.js, PHP, .NET, Python, Java, Ruby, Scala Frontend Development: React, Next.js, Angular, Vue.js Backend Development: Node.js, Express, Java, .NET, PHP, Python Mobile Development: Swift, Kotlin, React Native, Flutter CMS: WordPress, Shopify, Magento, Drupal, Webflow Specialized Services: DevOps, QA Engineering, UI/UX Design, AI/ML, Blockchain Engagement Models: End-to-end delivery, Legacy app modernization, Staff augmentation Industries: Fintech, eCommerce, Media & Entertainment, Healthcare, Automotive, GIS, Education, and more. 🏆 Key Achievements 680+ projects delivered on Upwork with 100% JSS Scaled teams from 2 to 22 members and built 15+ self-managed teams Guided/participated in 300+ additional projects outside Upwork Top-10 US real estate rentals project & Scrum Master for CIBC (Canada’s largest bank) If you’re looking for a reliable partner who can quickly connect you with top talent and ensure smooth, direct collaboration, let’s talk. Let’s connect and discuss your goals - I can match you with the right specialist and have them start within 24 hours.

AI Automation • Cloud Data Platforms • Agentic Workflows • Streaming Pipeline . Real-Time Analytics Principal Data Engineer and Architect extensive experience in building cloud-scale data ecosystems and AI-driven automation frameworks. Expert in architecting resilient, high-throughput platforms on AWS, GCP, and Azure that optimize unit economics and accelerate time-to-insight. Proven track record in transitioning legacy architectures to modern, agentic, and streaming-first environments across Telecom, Fintech, and SaaS. Core Tech Stack & Architecture Data Engineering & Orchestration: Expert-level implementation of AWS Glue, Amazon Athena, and MSK; professional mastery of Apache Airflow and PySpark for complex ETL/ELT lifecycle management. Cloud Data Warehousing: Architecting multi-cloud environments using Snowflake, Google BigQuery, and Amazon Redshift; specialized in storage tiering, clustering optimization, and cross-platform governance. AI & Workflow Automation: Designing low-code/no-code and agentic automation pipelines using n8n, Zapier, and Claude Code; integrating LLMs and RAG-based architectures into production data workflows to automate content and operational metadata. Modern Data Stack: Leveraging PostgreSQL, Redis, and Elasticsearch for high-performance caching and state management in automated SEO and content delivery pipelines. Strategic Impact Highlights Architectural Modernization: Designed decoupled, horizontally scalable pipelines using Kafka/MSK, Snowflake, and AWS Glue; implemented partitioning and backpressure strategies to stabilize SLAs and enable independent scaling of ingestion and compute. Cost & Performance Engineering: Reduced end-to-end pipeline latency by 60–90% through streaming-first designs; lowered cloud OpEx by 20%+ via job right-sizing, BigQuery/Snowflake cost controls, and automated cluster autoscaling. DevOps for Data: Established robust CI/CD patterns using Docker, Git, and GitLab, incorporating Infrastructure-as-Code (IaC) and automated recovery to achieve 99.9% availability and reduce MTTR by 50%

🏆 𝗧𝗢𝗣 𝗥𝗔𝗧𝗘𝗗 𝗣𝗟𝗨𝗦 - among the top 3% talent on Upwork 🏆 ⭐️ 𝟒𝟖+ happy clients ⭐️ 𝟑𝟎𝟎𝟎+ hours clocked With over 7 years of experience, I offer an unparalleled blend of expertise in data engineering and full stack development. My comprehensive skill set enables me to deliver robust technical solutions that drive business growth and operational efficiency. 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 Big Data Solutions: Proven proficiency in Cloudera Hadoop, Denodo, Spark, Impala, Hive, Flink, Airflow, Kafka, and Nifi. I design and implement scalable big data solutions to manage and analyze large datasets effectively. ETL Implementation: Extensive experience with Informatica Cloud (IICS), Informatica BDM, SSIS, Talend, and Fivetran, facilitating seamless data extraction, transformation, and loading processes. Cloud Technologies: Advanced knowledge of cloud platforms including AWS (Redshift, Glue, Data Pipeline, S3, EMR), Microsoft Azure (Data Factory, Synapse Analytics, Databricks), and Google Cloud Platform (Big Query, Dataproc). I architect and implement cloud-based data solutions to enhance data accessibility and scalability. Data Warehousing and Analytics: Expertise in Data Modeling, Reporting (SSRS), Data Analysis (Pandas), Data Cleaning, Visualization, and Pre-Processing. Proficient with BI tools such as Power BI, Tableau, and Google Data Studio to convert data into actionable insights. Computer Vision: Specialized skills in Convolutional Neural Networks for advanced computer vision tasks including pose recognition, multi-object detection, and human tracking. Generative AI / LLMs / NLP: Expertise in smart chatbots development, LLM Finetuning & Optimization, custom AI agents development, automation solutions for internal workflows & SaaS applications and large scale AI Infrastructure Development. Mobile & Web Applications: Delivered over 30 mobile and web applications utilizing native and cross-platform technologies, including React Native and the MERN stack. My work includes developing custom solutions tailored to specific business needs. Frontend Technologies: Expertise in JavaScript, React Native, React JS, Next JS, HTML, CSS, Material UI, and Tailwind CSS. I focus on creating intuitive and responsive user interfaces that enhance user experience. Backend Technologies: Proficient in Node JS, Nest JS, Express, AWS, MongoDB, Firebase, and MySQL. I develop robust backend systems to support scalable and secure applications. API & Microservices: Skilled in designing and implementing token-based RestFul API servers and microservices architectures to ensure seamless integration and scalability. Project Delivery: A track record of delivering projects on time with 100% client satisfaction. I adhere to strict deadlines to ensure timely project completion without compromising quality. 𝗪𝗵𝗮𝘁 𝗜 𝗢𝗳𝗳𝗲𝗿 Custom Development: Tailored mobile and web application development with a focus on cross-platform solutions and user-centric design. Data Solutions: Comprehensive data engineering services including ETL processes, cloud data architecture, and advanced analytics to optimize data usage and drive business decisions. Integration & Support: Backend development, database integration, third-party API integration, quality assurance, and post-launch support to ensure seamless operation and performance. 𝗡𝗼𝘁𝗮𝗯𝗹𝗲 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 & 𝗣𝗿𝗼𝗷𝗲𝗰𝘁𝘀 I have had the privilege of working with esteemed clients such as OnePlan, GoPlay, ActiveMentor AI, and Tribe Me, delivering solutions across diverse sectors including fitness, real estate, e-commerce, and fintech. 𝗖𝗼𝗻𝘁𝗮𝗰𝘁 To discuss how my expertise can contribute to your business objectives, please connect with me for a complimentary 30-minute consultation. 𝗛𝗶𝗴𝗵𝗹𝗶𝗴𝗵𝘁𝗲𝗱 𝗦𝗸𝗶𝗹𝗹𝘀: Full Stack Development | Full Stack Web Development | Full Stack Mobile Development | Application Development | Front-end Development | Back-end Development | SaaS Development | Android App developement | iOS Development | AI Chatbot Development | CMS Development | AI Integration | Crypto Wallet Development | Desktop Software Development | Ecommerce Website Development | Shopify | Shopify Apps | Mobile App Development | Mobile Game Development | Scripting & Automation | Mobile Design | UX/UI Design | Web Design | Smartphone | Database Development | JavaScript (JS) | TypeScript | React (React.js, ReactJS) | React Native (ReactNative) | Node.js (Node, NodeJS) | Next JS (Next.js) | Nest JS | Python | Scala | Pyspark | Django | Flask | Laravel | Vue.js | Swift | Kotlin | PHP | Flutter | Azure DevOps | Azure App service | Deployment Automation | Amazon Web Services (AWS) | Amazon EC2 | Firebase | MongoDB | MySQL | PostgreSQL | API Integration | OpenAI API | Generative AI Modeling | Machine Learning | Data Analytics | Data Visualization | A/B Testing | Data Extraction | Data Processing

I am a Software Engineer with over a decade of experience in Backend development, CRUD, Web, RESTful APIs, Unit Testing, and Scala. I am dedicated to creating scalable applications that help my clients stand out. I am currently seeking challenging projects and opportunities to utilize my problem-solving skills and experience to help businesses achieve their goals in both technology and business domains. If you value well-designed, impactful software systems delivered efficiently, I am the right person for you. Technologies and platforms I am proficient in include Scala, Play Framework, Akka, RDBMS, NoSQL, ZIO, HTTP4S, Cats Effect, Monix, Kafka, AWS, Apache Spark, RAG, Gen AI, LLMs, Claude, Codex, and Functional Programming.

Full-Stack AI Lead with 15+ years of experience in AI/ML/Data Engineering. Specialist in productionizing Document AI, Agentic LLM Workflows, and Scalable Big Data systems. Master’s in Applied Mathematics. 𝐀𝐠𝐞𝐧𝐭𝐢𝐜 𝐀𝐈 & 𝐋𝐋𝐌 - Architecting production-grade agents and multi-intent workflows using LangGraph and LangChain. - Implementing NeMo Guardrails, DeepEval, and Langfuse to ensure security and near-zero hallucination rates. - Developing high-performance FastAPI backends for real-time operational data integration. 𝐃𝐨𝐜𝐮𝐦𝐞𝐧𝐭 𝐈𝐧𝐭𝐞𝐥𝐥𝐢𝐠𝐞𝐧𝐜𝐞 & 𝐎𝐂𝐑 - Specialist in extracting structure from "dirty" or non-digital sources using Visual NLP and OCR. - Lead Developer of Spark OCR. - Author and main contributor of open-source projects: Spark PDF and ScaleDP. - Expertise in document layout analysis, data extraction, and semantic search. 𝐏𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧 𝐌𝐋𝐎𝐩𝐬 & 𝐁𝐢𝐠 𝐃𝐚𝐭𝐚 - Architecting scalable infrastructures using Vector DBs (Milvus, Pinecone, Qdrant). - Optimizing Apache Spark (PySpark, Streaming) and Databricks pipelines; reduced processing time from days to hours. - Implementing robust CI/CD via Databricks Asset Bundles, Jenkins, and GitHub Actions. 𝐏𝐫𝐢𝐯𝐚𝐜𝐲 & 𝐂𝐨𝐦𝐩𝐥𝐢𝐚𝐧𝐜𝐞 - Automated de-identification and redaction for GDPR/HIPAA. - Specialist in masking sensitive information in DICOM, PDF, and image formats. 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬 AI & LLM: LangGraph, LangChain, RAG, Llama 3, Gemini, GPT-4, Vertex AI, Hugging Face, GliNER. Backend: Python, Scala, FastAPI, Node.js, PostgreSQL, MongoDB. Vector DBs: Pinecone, Milvus, Qdrant. Infrastructure: AWS, GCP, Azure, Docker, Kubernetes, Jenkins, AirFlow. Big Data: Apache Spark (PySpark, Streaming, MLlib), Kafka, Kinesis.

I design and build scalable web applications that are fast, reliable, and built to grow. With 8 plus years of experience, I help startups and growing businesses turn ideas into production ready software. From architecture to deployment, I focus on clean code, performance, and long term maintainability. My core expertise includes: React and Next.js frontends Java Spring Boot and Rust backend systems REST and GraphQL APIs PostgreSQL and MongoDB AWS, Docker, Kubernetes I take ownership, communicate clearly, and build systems that support real business growth. If you need a developer who thinks beyond just writing code, let’s connect.