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Struggling with slow, unreliable data pipelines, rising cloud costs, or a data stack that can't keep up with your AI initiatives? I help businesses fix exactly that. I'm a Senior Data Engineer with hands-on experience helping businesses design, build, and scale reliable data infrastructure across Azure, GCP, and AWS. I specialize in end-to-end ETL/ELT pipelines, real-time data processing, and cloud-native data architecture using PySpark, Python, SQL, Databricks, and BigQuery. Across 21+ completed projects on Upwork, I've delivered more than $100K in data engineering solutions, including systems processing over 10 million records with performance improvements of up to 40%. My work spans automated ingestion frameworks, CRM and analytics integrations, RAG-based LLM pipelines, and cloud cost optimization without sacrificing performance. Clients consistently point to my clear communication, reliability, and commitment to quality, reflected in my 100% Job Success score and Top Rated Plus status. Whether you need a pipeline built from scratch, an existing data stack optimized, or an ongoing data engineering partner, I bring the technical depth and communication needed to get projects delivered on time and on budget. If you have a data challenge, let's connect and discuss how I can help move your project forward.

I’m a Software Engineer, Instructional Designer, and IT Instructor with over 10 years of software development experience and 7 years in teaching and curriculum design. I specialize in building robust, scalable software solutions while also designing and delivering engaging, real-world training programs that bridge theory and practice. As a developer, I’ve built enterprise-grade applications using Java, J2EE, Spring, React, PHP, and Python. My hands-on experience ensures every project I take on is technically sound, performance-driven, and aligned with modern development standards. As an educator, I’ve taught software development, AI integration, and full-stack (MERN) development at institutions such as CircuitStream, triOS College, and Georgian@ILAC. I design full curriculum packages, video-based lessons, and corporate upskilling programs that simplify complex topics and make learning actionable. My approach is rooted in mindful education—using storytelling, reflection, and project-based learning to make concepts stick. What I can help you with: - Software Development (Full Stack, AI Integration, API Design, Automation) - Curriculum & Course Design (academic, corporate, or e-learning) - Technical Content Creation (slides, videos, documentation, and labs) - Training & Instruction (Python, Java, React, SQL, Cloud, DevOps) - Assessment Design (quizzes, projects, and evaluation frameworks) If you’re looking for a professional who combines deep technical expertise with a passion for clear, effective teaching, I’d love to collaborate with you to build high-quality software and impactful learning experiences.

I am a full-stack developer with deep knowledge of cryptography with AI and its mainstream models. I specialize in integrating post-quantum cryptography (lattice-based), zero-knowledge proofs, and building encrypted, verifiable AI systems, e.g. blockchains and other ledgers. My expertise extends to migrating AI models to post-quantum computable encryption for future-proof security, developing algo-trading solutions for DeFi. I am proficient with Clouds, deploying software in Kubernetes clusters across Azure, AWS, GCP, and OpenShift. Key Expertise: -- Full Stack Development: Backend Development: Java, Spring Boot, Scala, Go, Rust, C++, Python, Node.js Frontend Development: Angular, React, Vue.js, HTML/CSS, TypeScript, WebAssemebly Cloud Platforms: AWS, Azure, Google Cloud, OpenShift, Docker, Kubernetes Databases: SQL Server, Oracle, MongoDB, PostgreSQL, MySQL, Neo4j, Cassandra Messaging: Kafka, Akka, ActiveMQ, RabbitMQ, Azure Event Hub & Google Pub/Sub Identity and Security: OID, OAUTH2, PKI, KeyClock, EntraID, AWS Congito and other identity providers, PKI, AES, RSA, ECC -- AI & Machine Learning Expertise: Generative AI: Development of large language models (LLMs, OpenAI, Vertex Ai, ChatGPT, LLama), RAG and Agentic AI, LangGraph, LLamaIndex, LangChain & LangGraph, and other NLP solutions Machine Learning: Building and deploying machine learning models for classification, prediction, and data analytics Autonomous Agents, Graphs & Knowledge Graphs: Experience in building autonomous AI agents capable of decision-making, planning, and task execution using reinforcement learning, multi-agent systems, and LLM-based architectures. Developed agents for real-time data processing, automated workflows, computer vision, and self-adaptive AI solutions in diverse environments. AI Frameworks: TensorFlow, PyTorch, Scikit-learn, Keras, MediaPipe FHE (Fully Homomorphic Encryption): Expertise in secure data processing, enabling encrypted AI and machine learning workflows Natural Language Processing (NLP): Implementing intelligent agents, conversational AI, and language models for automated decision-making Computer Vision: AI-based image and video recognition using deep learning techniques Edge AI: Developing and deploying AI solutions on edge devices, leveraging WebAssembly and MediaPipeline -- Cloud App Migration & DevOps Expertise: Cloud Migration: Extensive experience in migrating enterprise applications to the cloud using both lift-and-shift and refactoring approaches Lift-and-Shift: Proven ability to seamlessly migrate legacy systems to cloud platforms like AWS, Azure, and Google Cloud with minimal disruption to operations Cloud-Native Refactoring: Re-architecting applications to fully leverage cloud-native services such as serverless, containerization, and microservices for enhanced scalability and performance Infrastructure as Code (IaC): Expertise in automating deployments using tools like GitHub Actions, Terraform, and Azure Resource Manager CI/CD Pipelines: Designing and managing continuous integration and delivery pipelines with tools like Jenkins, Azure DevOps, and GitLab CI DevOps Tools: Proficient in Docker, Kubernetes, OpenShift, and monitoring solutions like Splunk, Prometheus, and Grafana -- Blockchain & Cryptography Expertise in Web3, Solana, zkSnarks, Circom -- Blockchain Algo Marginal Trading: Hyperliquid, Binance, Coinbase Post - quantum blockchain migrations encrypted computations to ensure privacy and security

𝗝𝗮𝘃𝗮 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 🖥️, 𝗦𝗽𝗿𝗶𝗻𝗴 𝗕𝗼𝗼𝘁 🌱, 𝗠𝗶𝗰𝗿𝗼𝘀𝗲𝗿𝘃𝗶𝗰𝗲𝘀 🛠️, 𝗔𝗪𝗦 ☁️, 𝗥𝗘𝗦𝗧 𝗔𝗣𝗜𝘀 🔗 I help businesses build scalable, secure, and high performance backend systems that handle growth without slowing down. Most applications work well in the beginning. The problems start when traffic increases. APIs become slow, deployments become risky, and maintaining the code becomes expensive. That's where I come in. 𝗔𝘀 𝗮 𝗦𝗲𝗻𝗶𝗼𝗿 𝗝𝗮𝘃𝗮 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 𝘄𝗶𝘁𝗵 𝟭𝟯+ 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲, I've helped startups and enterprise companies design, build, and optimize backend systems that scale reliably in production. I am not just a Java Developer who writes code. I help businesses create backend architectures that support growth, improve performance, and reduce technical debt. 𝗥𝗲𝘀𝘂𝗹𝘁𝘀 𝗜'𝘃𝗲 𝗗𝗲𝗹𝗶𝘃𝗲𝗿𝗲𝗱 • Built scalable Java Developer solutions serving thousands of daily users with high availability. • Designed Microservices architectures that reduced deployment risks and improved system reliability. • Developed Spring Boot applications that improved API response times and backend performance. • Helped businesses migrate legacy systems into modern Java Developer architectures. • Delivered production ready backend platforms for startups and enterprise organizations. Every project starts with a business goal and ends with measurable results. 𝗪𝗵𝗮𝘁 𝗜 𝗗𝗼 𝗝𝗮𝘃𝗮 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 • Custom backend application development • Enterprise Java solutions • Legacy application modernization • Backend performance optimization • Secure and maintainable architecture 𝗦𝗽𝗿𝗶𝗻𝗴 𝗕𝗼𝗼𝘁 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 • REST API development • Spring Security • Spring Data JPA • Authentication and authorization • Scalable backend services 𝗠𝗶𝗰𝗿𝗼𝘀𝗲𝗿𝘃𝗶𝗰𝗲𝘀 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲 • Distributed systems design • Service decomposition • API Gateway implementation • Event driven architecture • System scalability and resilience 𝗔𝗪𝗦 𝗖𝗹𝗼𝘂𝗱 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀 • AWS deployment and infrastructure • EC2, ECS, Lambda • Cloud architecture design • Monitoring and optimization • Cost effective cloud operations 𝗥𝗘𝗦𝗧 𝗔𝗣𝗜 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 • API design and implementation • Third party integrations • Payment gateway integration • Documentation and testing • Secure API architecture 𝗪𝗵𝗮𝘁 𝗠𝗮𝗸𝗲𝘀 𝗠𝗲 𝗗𝗶𝗳𝗳𝗲𝗿𝗲𝗻𝘁 Most Java Developers focus only on writing code. I focus on the business impact of the software. 𝗕𝗲𝗳𝗼𝗿𝗲 𝗯𝘂𝗶𝗹𝗱𝗶𝗻𝗴 𝗮𝗻𝘆𝘁𝗵𝗶𝗻𝗴, 𝗜 𝗮𝘀𝗸: • Will this architecture still work when traffic grows? • Can future developers maintain it easily? • Is it secure? • Is it optimized for performance? • Can it scale without major rewrites? This approach helps clients avoid costly problems later. 𝗪𝗵𝗼 𝗜 𝗪𝗼𝗿𝗸 𝗕𝗲𝘀𝘁 𝗪𝗶𝘁𝗵 • Startups building new SaaS products • Businesses scaling existing applications • Companies modernizing legacy Java systems • Teams adopting Microservices architecture • Organizations migrating workloads to AWS • Businesses needing secure and scalable REST APIs 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 Java, Spring Boot, Spring Security, Hibernate, JPA, Microservices, AWS, Docker, Kubernetes, REST APIs, Kafka, RabbitMQ, PostgreSQL, MySQL, MongoDB, Redis, Maven, Gradle, Git, CI/CD, Jenkins 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗛𝗶𝗿𝗲 𝗠𝗲 • 13+ years of Java Developer experience • Clean, maintainable code • Scalable backend architecture • Strong communication • Reliable delivery • Long term technical thinking If you're looking for a Java Developer who understands both software engineering and business objectives, let's discuss your project. Send an invitation and I'll respond within a few hours. Keywords: Java Developer, Senior Java Developer, Java Backend Developer, Java Software Engineer, Spring Boot Developer, Spring Boot Expert, Java Application Development, Enterprise Java Developer, Java Web Services, REST API Developer, RESTful API Development, Backend Developer, Backend Engineer, Microservices Developer, Microservices Architecture, Distributed Systems, AWS Developer, AWS Cloud Engineer, Java AWS Developer, Docker, Kubernetes, Kafka, RabbitMQ, Hibernate, JPA, Spring Security, API Integration, Database Design, PostgreSQL, MySQL, MongoDB, Redis, SaaS Backend Development, Scalable Application Development, Cloud Native Applications, Java Consultant, Software Architecture, System Design, Enterprise Application Development, Performance Optimization, CI/CD, Jenkins, Maven, Gradle, Full Stack Java Developer.

I build data systems that actually work in real-world conditions — not just clean demo pipelines. Most datasets are messy, incomplete, delayed, or inconsistent. I specialize in designing pipelines that handle that reality: cleaning, validating, and transforming data so it becomes usable for analytics and decision-making. I’ve worked on projects involving large-scale data processing, streaming pipelines, and financial data analysis, where accuracy and reliability matter more than anything. What I can help you with: • Build end-to-end data pipelines using Python, PySpark, and SQL • Design ETL workflows for messy, real-world datasets • Set up streaming systems using Kafka + Spark • Data cleaning, validation, and anomaly detection systems • Web scraping and API-based data collection • Financial data analysis and automation • Dashboard-ready data modeling (for BI tools) Tech Stack: • Python, PySpark, SQL • Databricks, Delta Lake • Kafka (Streaming Pipelines) • BigQuery (Analytics) • Airflow (Basic orchestration) • APIs, Web Scraping • Streamlit (Dashboards) I focus on building systems that are: Reliable • Scalable • Practical • Not over-engineered If you need someone who understands both the data and the system behind it — I can help.

Welcome to my profile👋 I’m a Full-Stack Developer with a passion for crafting custom solutions, especially for Shopify. I love helping businesses make the most of their Shopify stores. With extensive experience, I’m skilled in working with Liquid, customizing themes using ThemeKit, building private and custom apps, enhancing Shopify Plus features, and fine-tuning advanced checkout options. I know Shopify inside and out and always follow its best practices to keep things running smoothly. Being a full-stack developer means I can handle both the front-end and back-end to deliver tailored solutions that perfectly fit my clients’ needs. With a strong command of modern tools and technologies, I’m ready to tackle projects of all sizes! 𝐂𝐨𝐫𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐒𝐤𝐢𝐥𝐥 𝐒𝐞𝐭: 📌 Languages: JavaScript, TypeScript, CSS, SCSS/SASS/LESS, HTML5, PHP 📌 Frameworks: JavaScript (Next.js, Remix, T3, NestJS, Apollo, Nuxt, Universal), React (Next.js, Remix) 📌 ORMs: JavaScript (TypeORM, Prisma, Sequelize, Mongoose), PHP (Eloquent, Doctrine ORM) 📌 Databases: MongoDB, PostgreSQL, MySQL, MariaDB, Redis, Oracle DB, Microsoft SQL Server 📌 Queue Services: AWS SQS, Apache Kafka, RabbitMQ 📌 Authentication: Auth0, Amazon Cognito, Firebase Authentication, SuperTokens, Passport 📌 Social APIs: Google, Facebook, Twitter, Instagram, YouTube, Reddit, Snapchat, Pinterest, Viber, Telegram, Twilio, etc. 📌 Payment APIs: PayPal, Stripe, and more AI APIs: OpenAI 📌 Blockchain: Web3, Ethers.js, Hardhat 📌 Deployment Platforms: VPS (DigitalOcean, AWS EC2/ECS, Hetzner), AWS (Amplify, ELB), Google Cloud (App Engine), Azure DevOps, Heroku, Vercel, Netlify, Firebase Hosting, Edgio 📌 DevOps Tools: Docker, Kubernetes, Ansible, AWS (Lambda, DynamoDB, API Gateway, S3), GitLab, GitHub I am passionate about using my diverse skill set to deliver top-quality solutions and to help bring your project to the next level. Whether you need a customized Shopify solution or a complex full-stack application, I am ready to assist. 🙌🏼 👉🏻 Feel free to share your project details, and I would be happy to arrange a quick call to discuss your requirements, provide an estimation, and get started on development. I look forward to collaborating with you. 𝙅𝙪𝙨𝙩 𝙬𝙧𝙞𝙩𝙚 𝙢𝙚 𝘿𝙈. ↗️ Shopify | Shopify Certified | Shopify Developer | Shopify Theme Designer | Shopify Theme Developer | Shopify Store | Shopify Website Design | Shopify Expert | Shopify Specialist | Shopify App Developer | Shopify Public App Developer | Ecommerce | LandingPage Shopify expert | Shopify Plus | Ecommerce developer | WebDesign | Dropshipping | MERN