MSc. Data Science (Distinction), BSc. Chemical Engineering (Honours), former New Methods Data Scientist @ NIQ with 9+ years of well-established professional and academic track record. I specialize in machine learning research & model deployment, functional programming, statistical and mathematical computation, and business consulting. I'm highly technical and extremely rigorous while maintaining a personable touch through every client interaction, and have a proven track record in the petrochemical, market research, and consulting sectors. I selectively partner with clients, prioritizing high-profile projects that align with my expertise and pristine standards. ■ SOCIALS ───────────────────── ◉ LinkedIn: /in/pablo-aguirre-nunez ◉ GitHub: github.com/pabloagn ◉ Technical Blog: pabloagn.com ■ METHOD ───────────────────── ◉ I only deliver top-quality work and abstain from requests that trade quality for cheap solutions. ◉ I also abstain from requests that undervalue the task. (If the budget is constrained and you acknowledge this, I will take the case and propose a viable, realistic approach.) ■ TOOLS (I can attest to any expertise if required) ───────────────────── ◉ Programming Languages (General & Systems): ◎ Python, SQL, Julia, Rust, Go, C++, Java, Bash ◉ Functional Programming: ◎ Scala, Haskell, Nix, Lisps ◉ Data Science, Analytics & High-Performance Computing: ◎ Polars, Pandas, NumPy, SciPy ◉ Machine Learning, Modeling & Bayesian: ◎ Ray Ecosystem, JAX, PyTorch, TensorFlow, Scikit-learn, PyMC, Hugging Face Hub, StatsModels, MLflow, Kubeflow ◉ LLMOps, Observability & AI Tooling: ◎ LangFuse, Pydantic Ecosystem (Pydantic, Logfire, PydanticAI, Pydantic Gateway), Gradio, Prompt Engineering (Jinja2 templating), Experimentation & Evaluation Tooling ◉ Back-End, APIs & Systems Programming: ◎ FastAPI, Node.js, uvicorn, Inference Endpoints (Modal, Baseten), Dramatiq (task processing), Jinja2 templating ◉ Distributed Systems, Data Engineering & Infrastructure: ◎ Kubernetes, kind, Docker, Apache Airflow, Apache Spark (Scala, PySpark), Apache Flink, Apache Kafka, Terraform, GitOps (Argo CD), Linux (NixOS, Debian-based, Kali, Oracle Enterprise), Hadoop ◉ Cloud Platforms: ◎ AWS, GCP, Azure ◉ Monitoring, Logging & Observability Stack: ◎ Prometheus, Grafana, Loki, Promtail ◉ Databases & Storage: ◎ PostgreSQL, MySQL, MariaDB, MongoDB, Redis, Oracle DB, Qdrant, Azure Blob Storage ◉ Data Visualization & Reporting: ◎ Power BI (DAX, Power Query M), Tableau ◉ IaC & DevOps: ◎ NixOS, Nix Flakes, Terraform, GitHub Actions, CI/CD pipelines ◉ Prototyping & Front-End: ◎ Figma, Adobe Illustrator, React, Turborepo, pnpm, Streamlit ◉ Documentation & Version Control: ◎ Typst, LaTeX, Markdown, Git, GitHub ◉ Project & Workflow Management: ◎ Linear ■ INDUSTRIES OF EXPERTISE ───────────────────── ◉ Petrochemical ◉ Agricultural ◉ Financial ◉ Consumer and Retail ◉ Insurance ◉ Business Consulting ■ AREAS OF EXPERTISE ───────────────────── ◉ Behavior of complex systems and processes ◉ Mathematical modeling across diverse contexts ◉ Robust data analysis, interpretation, and validation ◉ Strategic consulting in technically complex fields ◉ Deep understanding of consumer behavior ◉ Cross-disciplinary collaboration and communication ◉ Abstracting business problems into computational solutions ◉ Designing, testing, and delivering complex systems to both technical and non-technical stakeholders ◉ Contributing to the open-source community through maintained projects and utilities ■ WAY OF WORK ───────────────────── ◉ We meet → I understand your business problem → I provide feedback and help manage expectations. ◉ If it’s a go and the timeline is realistic, we plan. Else, I assemble a bigger team with dedicated experts. ◉ I develop the solution → you provide feedback → I deliver the final version. ◉ We set short/medium/long-term maintenance support if required. ◉ We both win. ■ AVAILABLE UPON REQUEST ───────────────────── ◉ Verified credentials / CV ◉ A full Business Services Offering ◉ Previous work evidence ◉ References (Professional / Academic) ■ BUSINESS HOURS (BST) ───────────────────── ◉ Mon - Fri, 9:00 hrs - 19:00 hrs ◉ Sat, 9:00 hrs - 14:00 hrs Expected response time: ◉ During BD: 30 minutes ◉ Outside of BD: 2 hours Complexity, simplified. Let's work together.

With 6+ years of experience in data science and analytics, I help businesses turn raw data into clear, actionable strategies. My background combines data analysis, KPI management, and AI/ML engineering, giving me the ability to deliver both insightful dashboards and automation-driven solutions. I’ve successfully delivered projects for global brands like Amazon, Volvo, Ferrero, and Mindshare, focusing on scalable analytics, conversational AI, and data pipelines that drive measurable impact. ✨ What I can do for you: KPI & Data Analysis – Track business performance with precise reporting and interactive dashboards (Power BI, SQL, Looker Studio, Python). AI/ML Solutions – Predictive analytics, classification, clustering, and ML pipelines (scikit-learn, XGBoost, TensorFlow). Chatbots & NLP – Build smart conversational AI (OpenAI, LangChain, RASA, Dialogflow) with intent detection, sentiment analysis & summarization. APIs & Data Pipelines – Automate workflows, integrate third-party APIs, and design ETL processes for real-time insights. I combine technical depth with business understanding, ensuring you don’t just get data—you get solutions that optimize, automate, and scale smarter. Let’s discuss how I can support your next project! 🚀

I'm a Senior AI Engineer with 5+ years of full-time experience building production AI systems — most recently a multi-agent chatbot for a global money-transfer platform operating across 160+ countries, handling live transaction tracking, exchange-rate queries, and customer support end-to-end. I build RAG chatbots, AI agents, and computer vision systems that go beyond demos into real, deployed products: fast, accurate, and built to scale. Core stack: OpenAI / GPT-4.1, LangChain, LangGraph, FastAPI, WebSocket, Redis, FAISS, PostgreSQL, PyTorch, OpenCV, YOLOv8. What I can help with: RAG chatbots over PDFs, websites, policies, and internal documents AI agents and tool-calling / workflow automation OpenAI / GPT API integration Computer vision systems: object detection, tracking, anomaly detection (YOLOv8, OpenCV) FastAPI backend development and API-connected automation My work is also published in peer-reviewed venues (IEEE conferences, IT Professional journal) on applied computer vision systems. If you tell me your use case, I'll tell you honestly whether AI is the right tool for it — and if it is, how I'd build it.

⭐ "Trayambak has demonstrated absolute mastery of the subject matter. Even though the automation was in Spanish software, he adapted and understood it in record time. Highly, highly recommended." — Recent Client I build intelligent Python automations, reverse-engineer complex systems, and create secure data workflows that save businesses hundreds of manual hours. As a Certified Ethical Hacker (CEH) and ML Specialist, I specialize in building scalable solutions using Python, Machine Learning, cybersecurity practices, and advanced automation technologies. My focus is on creating practical systems that improve efficiency, security, and data-driven decision making. What I can help you with: • Complex Web Automation & API Reverse Engineering • Machine Learning model development and integration • Python backend development and API creation • Data analysis, processing, and visualization • Workflow and business process automation • Cybersecurity analysis and secure system design • AI chatbot development and automation tools • Technical project management for complex software systems I focus on writing clean, scalable, and secure code while delivering reliable solutions that create real business value for clients. If you are looking for someone who can transform technical ideas into working intelligent systems, I would be happy to collaborate with you. Let's talk!

I’m a Senior Software Engineer with 7+ years of experience building scalable, business-focused solutions across web development, cloud platforms, and AI systems. I specialize in full-stack development, data engineering, and AI integration, delivering high-impact products for enterprises and startups. 🚀 I’ve led teams in developing portals, dashboards, and authentication systems using technologies like React, Node.js, Django, D3.js, Azure, AWS, and Firebase. I’ve also built intelligent chatbots and tutor agents using LangChain, GPT, Pinecone, and Llama3. 💼 As a Top Rated Upwork freelancer with a 100% Job Success Score, I’m committed to excellence, long-term collaboration, and transforming ideas into high-performance digital products. 💻 Tech Stack Highlights: React, Next.js, Node.js, Django, FastAPI, MongoDB, PostgreSQL, Azure, AWS, Firebase, LangChain, GPT, CI/CD, Power BI, Tableau

Senior Data Engineer and AI Engineer with 15+ years in data engineering, AI engineering, and cloud data platforms. I build production data pipelines, ETL workflows, LLM and RAG systems, and machine learning infrastructure on AWS, GCP, Azure, Snowflake, Databricks, and Apache Spark. Most of my data engineering work is end to end. I take a messy data problem, or an AI feature that "almost works," and turn it into something reliable that runs in production without someone babysitting it. After 15+ years as a data engineer, you learn the hard part is rarely the model or the framework. It's the data, the edge cases, the pipelines, and keeping the system maintainable once you've handed it over. As an AI engineer I treat LLM and RAG work the same way: take a prototype that almost holds together and make it a production AI system that survives real traffic, real users, and real data. Recent data engineering and AI engineering projects: - An AI inbound phone system built on Twilio with OpenAI Whisper and GPT-4, handling real-time voice intake and call routing. - Enterprise Power BI data models for healthcare and financial reporting, around 30 tables and 40+ DAX measures, including IFRS 9 staging, RAROC, and NIM trends. - HL7 FHIR R4 integrations with Epic, Cerner, and Athenahealth for a clinical AI platform. - Cut LLM inference cost on a high-volume voice product by 25% by reworking how it used the OpenAI Realtime API and its per-turn token replay. Data engineering: Apache Spark, PySpark, dbt, Apache Airflow, ETL and ELT pipelines, data warehousing, data modeling, Snowflake, BigQuery, Redshift, Databricks, Delta Lake, Kafka, Kinesis, Fivetran. AI engineering and machine learning: OpenAI GPT-4o, Claude, Gemini, LangChain, LlamaIndex, RAG pipelines, AI agents, prompt engineering, vector search (Pinecone, Weaviate, pgvector), PyTorch, TensorFlow, scikit-learn, MLflow, model deployment. Cloud and DevOps: AWS (Glue, EMR, Lambda, Redshift, SageMaker, Athena), GCP (BigQuery, Dataflow, Vertex AI), Azure (Synapse, Data Factory, Azure ML), Terraform, Docker, Kubernetes, GitHub Actions. Automation and integration: n8n, Make, Power Automate, REST and GraphQL APIs. Governance and compliance: GDPR, HIPAA, SOC 2, RBAC, PII masking, encryption, data lineage. Languages: Python, SQL, Scala, PySpark, FastAPI, Flask. How I work: I'd rather ask the right questions up front than build the wrong thing quickly. I'll tell you when something is a bad idea, give you timelines I can keep, and leave you with code and documentation your own team can maintain. I've delivered data engineering and AI engineering projects for startups and enterprises across the US, Europe, and Asia. If you're looking to hire a data engineer or AI engineer who can own the work end to end, from raw data pipeline to production AI system, I'm available now. Tell me what you're building and I'll give you a straight answer on how I'd approach it.

Machine-Learning Engineer applying deep neural networks to reinforcement learning, NLP computer vision, and other interesting problems! In the midst of publishing a paper on predicting the outcome of sporting events. Background in Cryptography and full-stack development experience as well. When I'm not working catch me at USCF tournaments, playing basketball or working on my research!

Presently pursuing my M.Sc. degree in Biomedical Engineering at Bangladesh University of Engineering and Technology, Bangladesh. I am currently working on biomedical signal processing and deep learning-based health informatics projects as an active member of the m-health lab. My other research interests include biomedical simulations, biomedical Instrumentation, and edge device optimization. I am pretty much proficient in python and Matlab programming.

Leveraging over two decades of experience in Technology and High-Frequency Trading (HFT), I've worked in premier institutions including Aviva, FTSE, Merrill Lynch, Bank of New York, Kingdon Capital, Syneos Health Services, HSBC, Dresdner, Royal Bank Of Canada, Mitsubishi, Credit Suisse, and Insch Kintore. I bring to the table proficiency in: Trading Systems & Market Infrastructure ✅ HFT & Market Making: Ultra-low-latency systems, FPGA acceleration, co-location (NY4/TY3), FIX/ITCH/OUCH. ✅ Forex ECNs: Deep expertise in Cboe FX, EBS, and institutional FX market microstructure. ✅ Hedge Fund Infrastructure: OMS/PMS, real-time risk engines, portfolio analytics, multi-asset connectivity. ✅ Prediction Markets: Oracle integration, automated settlement, and market resolution protocols. ✅ Trading Expertise: Order book microstructure, AMM strategies, CEX dynamics, ICT/SMC (MT5). Exchanges, Blockchain & Tokenization ✅ Crypto Exchange: Matching engines, custody integration, KYC/AML, fiat on/off ramps. ✅ DeFi & DEX: AMMs, liquidity pools, cross-chain bridges, decentralized trading infrastructure. ✅ Blockchain & L1/L2: Custom chains, consensus mechanisms, rollups, validator infrastructure. ✅ Tokenization & RWA: Security tokens, real-world asset tokenization, regulatory frameworks. ✅ Crypto & Web3: Solana, Ethereum, QuickNode, Jupiter, Fireblocks. AI, Quant & Advanced Modelling ✅ AI/ML for Finance: Quant pipelines, alpha signal generation, feature engineering, and modeling across Forex and crypto markets. ✅ LLM Systems: LangChain, LangGraph, OpenAI MCP, agentic workflows, observability, and data reconciliation. ✅ Frameworks: PyTorch, TensorFlow, Transformers (low-rank, factorized), LLMs (GPT, BERT, PaLM). ✅ Advanced Methods: Deep Q-Learning, Reinforcement Kalman Filters, Mean Field Games. Engineering, Data & Low-Latency Stack ✅ Languages & Systems: C, C++, C#, .NET, Python, Rust, Go, TypeScript, Solidity, CUDA, Verilog/VHDL. ✅ Data & BI: SQL, MDX, XML, XBRL, SSAS, Power BI, star schema design. ✅ Real-Time Data: Kdb+/q, in-memory columnar streaming systems. ✅ Low-Latency Tech: FPGAs, SmartNICs, FIX, CME, NASDAQ, Trading Technologies, QuantConnect. Cloud, DevOps & Platforms ✅ Containerization: Docker, Kubernetes. ✅ Cloud: AWS (ECS, EMR, Glue, Firehose, SageMaker), Azure, Azure ML, DevOps. ✅ Data Platforms: Databricks. ⭐ I pride myself on my stellar reviews and feedback which are a testament to my dedication to excellence and client satisfaction. ⭐ My robust portfolio and strong work history demonstrate the breadth and depth of my expertise.

🧐𝗪𝗵𝗮𝘁 𝗶𝗳 𝘆𝗼𝘂𝗿 𝗱𝗮𝘁𝗮 𝗰𝗼𝘂𝗹𝗱 𝗮𝗻𝘀𝘄𝗲𝗿 𝘆𝗼𝘂𝗿 𝗯𝗶𝗴𝗴𝗲𝘀𝘁 𝗯𝘂𝘀𝗶𝗻𝗲𝘀𝘀 𝗾𝘂𝗲𝘀𝘁𝗶𝗼𝗻𝘀 𝗶𝗻 𝘀𝗲𝗰𝗼𝗻𝗱𝘀 𝗶𝗻𝘀𝘁𝗲𝗮𝗱 𝗼𝗳 𝗵𝗼𝘂𝗿𝘀? That's exactly what I help businesses achieve. With 8+ years of experience, I build interactive Power BI, Looker Studio, and Tableau dashboards that turn scattered data into clear insights. From executive KPI dashboards to automated business reports, I help teams spend less time creating reports and more time making decisions. 𝗪𝗵𝗮𝘁 𝗜 𝗖𝗮𝗻 𝗛𝗲𝗹𝗽 𝗬𝗼𝘂 𝗪𝗶𝘁𝗵 • Power BI Dashboards • Looker Studio Reports • Tableau Dashboards • Executive & KPI Dashboards • Business Intelligence • Data Visualization • DAX & Power Query • SQL & Excel Reporting • Automated Reporting 𝗪𝗵𝘆 𝗨𝗽𝘄𝗼𝗿𝗸 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲 ✔ Quick Response ✔ Interactive dashboards that are easy to understand ✔ Automated reporting that saves valuable time ✔ Clean, modern, and business-focused visualizations ✔ Accurate KPI tracking and actionable insights ✔ Reliable communication and on-time delivery 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀 ↩↩ E-Commerce • Finance • Healthcare • Marketing • Retail • SaaS • Logistics Whether you're tracking sales, finance, marketing, operations, or business performance, I'll build a dashboard that's tailored to your goals, not just another report. Send me a message or invite me to your project, and let's discuss how we can turn your data into decisions that drive real business growth.