I'm a seasoned Principal Engineer with extensive experience building high-performance, distributed systems for industry leaders like Mastercard, D. E. Shaw, and other top-tier MNCs in Finance, Healthcare, and Pharma domains. Over the years, I’ve architected and developed scalable solutions across real-time data pipelines, ultra-low latency systems, and large-scale B2B/B2C applications—all optimized for high throughput and reliability. 🛠 Core Skills & Technologies: Languages: Python, Java Big Data: Hadoop, Spark, Spark Streaming Cloud Platforms: AWS, Azure, GCP DevOps: Docker, Kubernetes, PCF Others: Data modeling, analytics tooling, Android app development 🚀 Key Achievements: Built a real-time stream processing pipeline handling 30+ billion events per month Developed a sensor ingestion system processing millions of events per minute Engineered APIs capable of supporting millions of concurrent users Created domain-specific data models and analytics tools using Python and modern data tech Developed and launched Android apps on the Play Store with strong user reviews and ratings I specialize in taking complex business requirements and turning them into scalable, cloud-native systems. If you're looking for someone who can both lead technically and deliver hands-on—let’s connect and make it happen.

Expert Technical Architect ---- Let's Connect ✅ 100 % Responsive ✅ 15,593 Upwork hours ✅ Total jobs 126 ✅ ISO 9001: 2015 certified ✅ 85% Job Success Our expertise is centered on designing and developing intelligent and adaptive applications whether for desktop or for the web. We've depth knowledge working with Artificial Intelligence, Machine Learning, LSTM, CNN, RNN, OpenCV, Tensorflow, Keras, etc.. Worked on many AI Tech/Projects, including, but not limited to, Face/Objection Detection, Deep Video Analytics, NLP/NLU, PredictionIO, Recommendation Engine, Conversational Chatbots, Vehicle Route Planning, Sentiment Analysis, Supervised/Unsupervised Learning, etc. Responsibility includes collaborating with the clients to gather the business specifications, improving the scope in terms of technicality and user experience by offering suggestions on scope and latest technologies and furnishing clients with all required information about the organization, services offered, our area of expertise, the processes being followed and all other required information related to the project to help make clients an informed decision. "10 year" of collective experience works in: ✅ Deep Learning, Tensorflow, Keras, Computer Vision, OpenCV, Keras, Optaplanner, DatumBox, Raspberry Pi, etc. ✅ Amazon Web Services, AWS Lex, IBM Watson, PredictionIO, etc.. ✅ Hadoop, Mahout, HBase, Elastic Map Reduce, etc. Always Ready to sell 40/hrs a week. Lets Connect & discuss your needs.

I’m a developer with experience in NLP、LLM 、 CV and recommendation system and bigdata. 1. I’m experienced in RAG、langchain、deepspeed、llm、 object dection、video generation 2.I’m experienced in hadoop/hdfs/yarn/hbase/redis/kafka/hive, 2. I’m experienced in tensorflow/kubeflow/tf serving/trtion serving 3.I’m experienced in k8s/docker/html/jqurey/spring boot/mybatis 4.I’m experienced in aws componet, such as emr/ec2/s3/code deploy

Offering 20+ years of practical experience in Linux System Administration, working with software development teams, and working with startups, medium and large businesses. Education: B.Sc. from UBC in Computer Science Languages: English, French, Russian Technology skills: Linux command-line, cPanel/WHM, Plesk, Apache, nginx, Squid; MySQL, bind, FTP, Exim, sendmail, iptables, NFS, bash scripting, php, memcached, KVM, VMWare, Nagios, Zabbix, WordPress, Joomla, AWS. Linux System Administration: Redhat, Ubuntu, Gentoo * Installation/configuration/optimization, monitoring, Installing/Updating software * Backup, DDoS protection, Security Highlighted Experiences: I have directly managed 300+ servers. Worked as a team to manage network of thousands of servers.

Professional Summary: Experienced IT professional with 7.5+ years in Big Data, ETL, and Cloud Testing across Automobile, banking, healthcare, Travel, and insurance domains. I am proficient in Hadoop, AWS, SQL, Python & Snowflake and automation using Shell/Python. Skilled in validating data pipelines, conducting end-to-end testing, and ensuring high data quality across diverse platforms. Agile-savvy, cross-functional team collaborator with a passion for scalable, efficient QA solutions. * 7+ years of hands-on experience in Big Data Testing (Hadoop), AWS Cloud Testing, and ETL Data Warehousing validation across client-server and web-based applications. * Proficient in testing and validating Hadoop ecosystem components including AWS, Databricks, HDFS, Big SQL, MapReduce, HBase, Hive, Oozie, Sqoop, and Spark. * Expertise in conducting various types of testing Functional, Integration, Regression, GUI, Performance & Acceptance Testing

✅ Web Development: Tasks that I can help with: - Develop high-performance, scalable web applications. - MVP development - Legacy project optimization - Support 24/7 - Integrate third-party APIs and services ✅ Data Analytics: We empower companies to transform into data-driven organizations, enabling them to make informed decisions, optimize operations, and achieve strategic goals through actionable insights derived from their data. - Consulting and Strategy Development - Data Warehousing and Storage Solutions: Amazon Redshift, Snowflake, Oracle, Hadoop - Data Pipeline Development: ETL, DBT, ELT, AWS Glue - Data Analysis and Reporting: Excel, SQL, R, Python, SAS - Business Intelligence (BI) Solutions: Tableau, Power BI, QlikView, Looker ✅ DevOps: We are AWS Partner and Vanta Partner I can help with Performance & efficiency, Costs optimization, Availability 95-99,9999%, Scalability Our Services: - Security Compliance: SOC2, HIPAA, GDPR - Cloud Assessment & Architecture - Kubernetes management and support - CI/CD pipeline automation - Monitoring & Alerting - Disaster recovery ✅ Data Scraping: We help to enhance your marketing efficiency, supercharge lead generation, and uncover deep customer insights, enabling you to make data-driven decisions and stay ahead in the competitive market. - Custom Data Scraping Solutions - Social Media Scraping - E-commerce Data Scraping: Extracting product details, prices, reviews, and other relevant information from e-commerce websites. - Competitor Analysis - Custom Data Scraping Solutions

Hi there! I'm Andrew and I've recently become "Expert-Vetted" by UpWork (top 1% of the platform) I'm a lead software engineer with over 8 years of experience in startups and government. At the Department of Veterans Affairs, I developed applications to improve communication with millions of veterans, while mentoring junior engineers. As the CTO of WunderPics and PickleWave, I led the development of a revolutionary photo marketplace and developed advanced sports analytics. I am currently developing an AI application, focused on Lean Manufacturing to boost operational efficiency and promote continuous improvement. I bring a strong ability to deliver impactful solutions, combining my technical expertise with a commitment to serving the public good. Key highlights of my experience: * Led fullstack engineering teams to deliver MVPs for startups across various industries. * Created AI-driven systems using OpenAI and Anthropic APIs to provide enterprise solutions. * Designed and built data-intensive applications using Apache Spark and Hadoop. * Developed and maintained high-traffic software used by millions of users per month. * Leverage design tools like Figma and Photoshop to deliver high-quality user interfaces. My recent work has focused on leveraging AI technologies, where I’ve built custom AI systems integrated with OpenAI and Anthropic APIs to solve real-world business problems. I’m passionate about delivering world-class software and am excited to work on teams that challenge me while creating real value for clients.

World-class expert in clouds, storages, data platforms, and high-performance systems, having led teams and core projects at AWS S3 and Apple. US Inventor. Lately, I have been focusing primarily on Clouds, Data Platforms & Data Governance, but fluent in the entire big data stack, including DevOps methologies, high-performance JVM installations (incl Spring), databases and Data Science. I emphasize reliability, clearly written processes, and agile turnaround with all stakeholders. I am now bootstrapping my own B2B startup, where I handle CustDev, Product Management, GTM, complex UX, enterprise search with AI and everything else. I am not that proficient in these areas, but I am learning something new every day. As a hedge against startup turbulence, I am happy to share my core competencies with companies through Upwork!

I am a Senior Data Engineer with over 7 years of experience in building robust enterprise data solutions. My expertise spans data warehousing, ETL development, and SQL performance tuning, with a strong focus on delivering actionable insights across financial services, insurance, e-commerce, and livestreaming analytics. I excel at transforming complex business requirements into clear data models, automated batch processes, and BI-ready data marts. My ability to work fluently in English, Mandarin, and Cantonese enables me to collaborate effectively in diverse environments. I quickly adapt to various database and cloud technologies, ensuring optimal solutions that drive value. If you need a data professional who can elevate your project with precision and innovation, let's connect to discuss how I can help.

I’m a Data Engineer & Data Analyst with hands-on experience in Big Data ecosystems, ETL pipelines, cloud infrastructure, and data visualization. I specialize in transforming complex datasets into valuable insights that support decision-making and business growth. I’ve worked with a wide range of technologies including Python, SQL, Spark, Flink, Kafka, Airflow, and Hadoop, and I’m skilled in building both batch and real-time data pipelines. I also design interactive dashboards using Power BI, SSRS, and Grafana, enabling clear communication of key metrics to stakeholders. 🧰 Technical Expertise Programming: Python, SQL Data Engineering: HDFS, Spark, Flink, Kafka, Hive, HBase, MapReduce ETL & Workflow: SSIS, Airflow, Flume, Elasticsearch, Redis Data Analytics: Pandas, NumPy, Matplotlib, Seaborn Visualization: Power BI, SSRS, Grafana Cloud & DevOps: AWS (IAM, EC2, VPC), Docker Databases: SQL Server, NoSQL (Redis, Elasticsearch) 📚 I also have strong foundations in Linux systems, Database Fundamentals, and Data Warehousing concepts, and I’ve completed professional training in: Big Data Engineering (Huawei HCIB) Python Programming Data Analytics & Visualization Cloud Services & Docker Generative AI & Prompt Engineering 🎯 I’m passionate about: Building scalable data systems Automating data workflows Applying AI-driven techniques to solve real-world problems ✅ What I can help you with: ETL pipeline design & implementation Big Data processing (batch & streaming) Dashboarding & reporting solutions Data cleaning, transformation & modeling Cloud infrastructure setup for data projects 💼 Employment History Data Engineer – Secured Smart Systems (Remote) Built and optimized SQL Server databases and ETL workflows using SSIS. Developed multidimensional models (SSAS) and dashboards (Power BI, SSRS). Applied AI models to solve business problems. Python Instructor – I School (Part-Time, Remote) Taught Python fundamentals and problem-solving through hands-on projects. 🎓 Education Bachelor of Engineering in Systems & Computer Science Al-Azhar University (2019 – 2024) GPA: Very Good with Honors | Graduation Project: Excellent 🧪 Certifications & Courses Huawei HCIB – Big Data Power BI – ITI Introduction to Data Mining – Huawei Introduction to AI – Zewail University Programming Fundamentals Diploma – Route Fundamentals: Python, Linux, Databases Working with Data: Pandas, Numpy, NoSQL, Data Warehouse, Visualization Data Processing Frameworks & Scheduling, CI/CD Cloud Services (AWS) & Docker Freelancing & Employability Skills 🛠 Skills Data Engineering Big Data Processing ETL & Data Pipelines Data Analytics Data Visualization AWS Cloud Python Programming SQL / NoSQL Databases Docker Generative AI & Prompt Engineering 🌍 Languages Arabic – Native English – Professional Proficiency