Who we are? Keen solutions is an reputed IT company based in India with a strong focus and expertise in Business Analytics, Big DATA, Data Engineering technology. In modern business world the Data can provide strong insights We help organizations to create and sustain competitive advantage through data. We assist top managers and leaders to make data centric business decisions. We work extensively on Data visualization tools like PowerBI, Tableau and Looker. We also have strong expertise in Big data technology and Machine Learning and we work extensively on Python and R and Cloud technology. We have vast experience in various industries like Finance, Retail, Healthcare, Education, Manufacturing, Real estate, Energy, Media, Entertainment. We have worked with the clients across the globe and have delivered quality projects. Since we have worked with some of the complex projects for international clients we focus on strong communication, timely deliveries and quality work. We work with strong ethos and building and maintaining strong relationships with the clients is our core business Mantra. What we can offer? We have delivered analytics reports & dashboards for all major business functions across various business domains like Sales dashboards Marketing dashboards Financials dashboards HR dashboards Operations Dashboards Educational Dashboards We work through 720 Degree project cycles which means our expert team works from business requirement gathering to project execution. Requirement Gathering Prepare scope of work Defining the architecture ETL Data Modelling Data Visualization Deployment Training Deployment and support. We provide remote, onsite or Hybrid assistance. If you have any doubt about the big data and analytics adaption our technical managers can have a detailed conversation to take things forward.

I'm a proficient data application engineer with 10+ years of working experience and a strong command of Java. I've built robust big data platforms using technologies such as Hadoop, Hive, Doris, and Flink. Specializing in Java web applications, I excel in frameworks such as Spring Boot and JPA.

I am a software craftsman specialized in building distributed infrastructure scalable for processing large volumes of data at high speed. I build flexible systems by composing modular tools that can adapt changes faster. I have been passionately leveraging my skills and delivering software solutions for last 15+ years in different industries. I envision about the end goal of having maximum positive impact for my efforts. I enjoy sharing my knowledge and experience with others.

Senior Data Engineer building production ETL/ELT pipelines, cloud data warehouses, and analytics platforms that turn fragmented data into reliable, business-ready insight. Over 1,700 hours on Upwork with a 100% Job Success Score, specializing in Airflow orchestration, dbt transformation, and Snowflake/BigQuery warehousing across AWS, GCP, and Azure. 𝗪𝗵𝗮𝘁 𝗜 𝗯𝘂𝗶𝗹𝗱 𝗗𝗮𝘁𝗮 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 & 𝗣𝗶𝗽𝗲𝗹𝗶𝗻𝗲𝘀 - ETL/ELT pipelines (batch + streaming) - Workflow orchestration with Airflow, Dagster, MWAA, Step Functions - Data ingestion, replication, and CDC with Fivetran, Airbyte, Meltano - Pipeline monitoring, alerting, and cost optimization 𝗗𝗮𝘁𝗮 𝗪𝗮𝗿𝗲𝗵𝗼𝘂𝘀𝗶𝗻𝗴 & 𝗠𝗼𝗱𝗲𝗹𝗶𝗻𝗴 - Snowflake, BigQuery, Redshift, Databricks, ClickHouse, Postgres - Star, Snowflake, Kimball, and Data Vault modeling - Schema evolution, partitioning, and clustering - Query performance tuning for BI workloads 𝗖𝗹𝗼𝘂𝗱 & 𝗜𝗻𝗳𝗿𝗮𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲 - AWS (S3, Lambda, Glue, Athena, MWAA, Step Functions) - GCP (BigQuery, Pub/Sub, Cloud Functions, Dataflow) - Azure (Data Factory) - Docker, Kubernetes (EKS/GKE/AKS), Helm 𝗥𝗲𝗮𝗹-𝗧𝗶𝗺𝗲 & 𝗦𝘁𝗿𝗲𝗮𝗺𝗶𝗻𝗴 - Apache Kafka, Spark Structured Streaming - Event-driven architectures - CDC pipelines for low-latency analytics 𝗔𝗻𝗮𝗹𝘆𝘁𝗶𝗰𝘀 & 𝗕𝗜 - Power BI, Looker, Tableau, Looker Studio - Superset, Metabase, Klipfolio - Semantic layers and self-service KPI dashboards 𝗥𝗲𝗰𝗲𝗻𝘁 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 𝗜𝗺𝗽𝗮𝗰𝘁 - Built a real-time FinTech analytics platform (Markets4U) with ClickHouse and Power BI for sub-second dashboard latency - Designed a smart real estate analytics stack (ECAP) using Airflow, dbt, and Snowflake for automated property reporting - Unified Salesforce and operational data (ASR) into a centralized customer analytics layer with Power BI - Modernized a legacy Excel reporting workflow into a full Airbyte → dbt → BigQuery → Looker Studio pipeline 𝗪𝗵𝘆 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 𝗸𝗲𝗲𝗽 𝗵𝗶𝗿𝗶𝗻𝗴 𝗺𝗲 - 𝗘𝗻𝗱-𝘁𝗼-𝗲𝗻𝗱 𝗼𝘄𝗻𝗲𝗿𝘀𝗵𝗶𝗽: architecture → development → deployment → documentation - 𝗕𝘂𝘀𝗶𝗻𝗲𝘀𝘀-𝗳𝗶𝗿𝘀𝘁: data shaped to support decisions, not just processed - 𝗖𝗹𝗲𝗮𝗿 𝗰𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗶𝗼𝗻: frequent updates, no surprises, proactive escalation - 𝗣𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻-𝗴𝗿𝗮𝗱𝗲: modular, testable, scalable pipelines built to grow with your product Send me a message about your data challenge, I'll review it and recommend the cleanest path forward.

Software Engineer, Backend, specializing in high-performance systems, database optimization, and event-driven distributed architectures. Key achievements in production: - Reduced database query counts by 92.83% and improved API response times by 65.45% through Django ORM optimizations and PostgreSQL composite indexing - Designed and built a high-throughput log ingestion platform achieving 2.8x throughput improvement (6,071 → 17,255 req/s) using Node.js cluster mode, Redis Streams, and ClickHouse - Increased consumer throughput by 2.7x and cut memory usage by 80% by rewriting a Node.js worker in C++ with native threads - Reduced network payload size by 54% and increased parsing throughput by 9.4x via a polyglot API layer supporting HTTP/1.1, HTTP/2, and gRPC with Protocol Buffers - Engineered complex PL/SQL stored procedures handling 100K+ records under strict reliability requirements for the Egyptian Armed Forces Core expertise: - Backend: Node.js, Python/Django, Fastify, gRPC, REST API design - Databases: PostgreSQL, ClickHouse, Redis Streams, Oracle, PostGIS - Infrastructure: Docker, NGINX, AWS (EC2, S3), GitHub Actions CI/CD, OpenTelemetry, Jaeger - Architecture: Event-Driven, Onion/Hexagonal, Message Queues, Distributed Systems I bring a systems-thinking mindset to every project — from identifying bottlenecks at the query level to redesigning full pipeline architectures for scale.

I build high-throughput backend systems, real-time bidders, identity graphs, analytics pipelines, and fraud detection engines, that process millions of requests at sub-200ms latency. What I've built and shipped: Ad-Tech & Programmatic: A complete programmatic advertising stack from scratch, real-time bidding engine (Go, OpenRTB 2.x) with an 8-stage request pipeline, 14-filter targeting system, and three pricing models. Self-hosted Prebid Server with a custom bidder adapter. Cross-device identity resolution service integrating LiveRamp, ID5, UID2, and Prebid with TCF 2.0 compliance. Cookie sync, fingerprint hashing, and confidence-scored identity linking across devices. Analytics & Data Pipelines: ClickHouse analytics pipeline with Kafka ingestion for real-time ad performance, intent scoring, bid multipliers, CLV modeling, cart abandonment signals, and channel attribution. Hourly cron-based scoring service processing millions of user profile records. Mobile SDKs & Fraud Detection: Android SDK (Kotlin) with Prebid header bidding, GAM mediation, and on-device fraud detection, device fingerprinting, VPN/network detection, Play Integrity, root/emulator checks, and behavioral signal analysis. Built a dedicated bot/IVT detection platform, originally in Node.js, rewritten in Go for 10x throughput improvement. SaaS & Web Platforms: B2B SaaS hiring platform (NestJS/TypeScript/MySQL/Stripe) with multi-tenant architecture. Real-time vehicle recovery marketplace with WebSocket-based matching. NFC-based loyalty app backend (MERN stack) with 10K+ Google Play downloads. Universal tracking pixel (vanilla ES6+) with auto-event capture, ecommerce funnel tracking, and GDPR/CCPA compliance. Core stack: Go, Node.js/TypeScript, Python, Kotlin, React/Next.js, NestJS Databases: MongoDB, PostgreSQL, MySQL, ClickHouse, Redis, Aerospike Infrastructure: AWS, Docker, Kafka, Prometheus/Grafana, OpenTelemetry I respond within a few hours, communicate proactively, and close contracts cleanly. Happy to discuss your project scope on a quick call.

*Core Expertise (AI, ML, Computer Vision) AI Development & LLM Integration: Custom model training, fine-tuning, and deployment using Transformers, LangChain, Hugging Face, RAG, llama.cpp, Unsloth, vLLM Machine Learning Engineering: Predictive modeling, Deep Learning (CNN, GAN, Transformer models), and advanced data processing with TensorFlow, PyTorch, Keras * Computer Vision Applications: Object detection, image segmentation, and 3D vision (OpenCV, YOLO, MMCV, dlib, Kinect, Intel RealSense, HoloLens); video analytics with FFmpeg * Full-Stack Software Development Back-End / DevOps: .NET Stack (C#, Entity Framework, NHibernate), REST APIs, Microservices, containerization (Docker/Kubernetes), and CI/CD pipelines * Front-End: React, TypeScript, JavaScript, Redux, MobX — building modern, responsive web applications * Mobile Apps: iOS, Android, and cross-platform development for AI-driven mobile experiences * QA & Maintenance Services Testing: Unit, automation, regression, and stress testing using Cypress, TestLink, custom frameworks * Support: Cloud/server maintenance, DB backups, bug fixing, and 24/7 technical support * Trusted by Global Brands Successfully delivered 200+ projects for Intel, NEC, Samsung, DHL, VIATechnik, Amberg Technologies, and other clients across Europe, North America, MENA, and Asia-Pacific. * We’ve completed complex AI and software development projects in the UK, USA, Switzerland, Spain, Germany, Belgium, and beyond. * Why Clients Choose My Team Proven AI and Machine Learning expertise with measurable results * Strong background in full-stack development and system architecture * Collaborative approach, clear communication, and agile delivery * Always up to date with the latest AI, LLM, and Computer Vision technologies Let’s discuss how to design, build, and optimize your next AI-powered application, Computer Vision platform, or intelligent automation system.

Give me your workflow bottleneck — I'll turn it into an AI system that runs 24/7 without breaking. That's what I do: production-grade AI automation. Not demos, not ChatGPT wrappers — systems that survive real traffic and actually save money. 𝗥𝗲𝗰𝗲𝗻𝘁 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝘀: → diffray.ai — 30 specialized AI agents reviewing GitHub PRs for security, performance, architecture. Under 2 min per review → PrivatClaw — SaaS platform deploying AI Telegram bots in 3 seconds. Provisioning, billing, monitoring — fully automated → Telagon — real-time analytics for 700K+ Telegram channels. Go + ClickHouse, sub-second queries at scale → Enterprise LLM pipeline at a 150+ microservice platform (99.999% SLA) — automated work that used to take senior engineers hours 14 years shipping backend systems. Cut infra costs by 40%. Reduced load times by 95%. Built AI pipelines that replaced manual engineering work. 𝗪𝗵𝗮𝘁 𝗜 𝗯𝘂𝗶𝗹𝗱: • Multi-agent LLM pipelines — custom orchestration, not off-the-shelf wrappers • AI integration into existing products — APIs, webhooks, data pipelines • Telegram bot automation at scale • Workflow automation with n8n and custom Node.js/Python 𝗦𝘁𝗮𝗰𝗸: TypeScript · Node.js · Go · Python · OpenAI API · Claude API · LangChain · n8n · AWS · Kubernetes Based in South America (UTC-3). 4-5h overlap with US East, full overlap with US West afternoon. Have an AI automation idea? Message me — happy to discuss your project in a quick call.

I specialize in crafting efficient, serverless architectures that drive business intelligence and real-time analytics. With a strong foundation in AWS, I've developed automated data pipelines that transform raw e-commerce data into actionable insights, alongside a production-ready fraud detection system capable of processing millions of transactions per second. My expertise extends to robust data modeling, interactive dashboard creation, and infrastructure automation using tools like Terraform. I deliver solutions that require zero server management while ensuring scalability and performance. If you're looking for a data engineer who can harness the power of cloud technology to elevate your projects, let's discuss how I can contribute to your success.

I fix bugs fast and build things that work. Backend broken? Database slow? App crashing? Server down? Send me the details — I'll diagnose it and give you a clear plan within hours. What I deliver: → Bug Fixing — fast diagnosis, fast turnaround, across any stack I know → Laravel & PHP — APIs, performance optimization, N+1 fixes, full backend systems → Python & Django — automation, backend services, scripting, data processing → Android Apps — Kotlin, Java, Firebase, Room DB, Play Store publishing → MySQL & Databases — query optimization, ClickHouse, schema design, migration → DevOps & Linux — server setup, hardening, Docker, Ansible, Nginx, CI/CD 9+ years building and maintaining production systems at scale. RHCE, RHCA, CCNA certified. I've managed infrastructure serving 50,000+ concurrent users and built data pipelines processing millions of records