I’m a quantitative researcher and trader with nearly 10 years prior experience at a major Chicago market making and high frequency trading firm. I can help your team analyze and extract insight from large datasets, design and evaluate systematic strategies, build and validate backtests, and troubleshoot complex execution, latency, and performance issues. If you need help with ✅ backtesting ✅ strategy evaluation ✅ execution analysis ✅ reconciling backtest vs. live performance ✅ debugging/troubleshooting trading strategies ✅ latency investigation and performance benchmarking ✅ data visualization ✅ Conveying complex analytical concepts into long form content or reports ✅ Ghostwriting advanced finance and trading content that performs on social ✅ Growing your X or LinkedIn account with organic content in the finance & trading niche ✅ Or simply extracting meaningful and insightful conclusions from very large datasets, I can bring institutional grade expertise to your project. 🌟 Additional highlights • Extensive experience with ₿ crypto market data and the Defi and NFT ecosystems • Series 7 license during prior tenure • LIVE trading floor experience and responsibility for design, refinement, support and monitoring of a ✅ 50+ server global trading strategy infrastructure executing ✅ 100M+ shares per month. • On our peak days, we approached 20% of the SPY market volume in addition to the rest of the portfolio. • Market microstructure and orderbook expert working directly w/exchange market data. • Regularly reported strategy performance, infrastructure behavior, and operational findings to fellow traders and management, including a one time direct report of critical findings to CME Group. • Strong general knowledge of multiple assets classes and global financial markets and news cycles 📊 Strategy Research & Backtesting • Conducted terabyte scale tick data research including microsecond level replay, queue position and slippage modeling, fill probability and order book interaction studies, & latency sensitivity analysis • Maintained and refined predictive models across multiple live product classes, exchanges, and market regimes that traded over 100 million shares per month. • Monitored live performance for microsecond sensitive strategies, diagnosing discrepancies between simulated vs. live behavior providing insight into signal degradation, slippage, order placement logic, parameter sensitivity, and venue specific execution problems. • Deep experience in predictive modeling including time series forecasting, robustness testing, and systematic strategy evaluation. • Collaborated with fellow traders, researchers, and developers to refine models based on execution behavior across markets. 👷 Infrastructure & Systems Experience • Supported a LIVE complex low latency global trading infrastructure across Chicago, New York, Paris, Frankfurt, and London, daily for nearly 10 years. • Deep knowledge of internal networking infrastructure at major exchange colocation facilities worldwide, and its effect on latency sensitive strategies. • Understanding of idiosyncratic matching engine and order book mechanics at major worldwide equity and futures exchanges • Hands on experience with ITCH, OUCH, FIX, CME MDP 3.0 exchange data protocols • Direct exchange connectivity and feed handler experience • Packet and message level execution and backtesting experience • Low latency server coordination and monitoring • Contributed to the rollout of a new generation of low latency trading software, including execution research performance validation, .deployment and production monitoring • Operated in CI/CD environments with Git, Atlassian tools and an Agile iterative model deployment workflow coordinated with a large in house development team. 🌎 Cross-Asset & Cross-Region Markets Experience across major US equity and ETF markets and European index futures including • ES, YM, NQ, TF US Futures • FESX, FDAX, CAC (Euronext Paris), FTSE (LIFFE/ICE Europe) European Futures • Major US ETFs • Major US large cap Equities • Exchange venues: CME, NASDAQ, NYSE, ARCA, BZX/BYX, EDGA/EDGX, IEX, Eurex, LIFFE, ICE, Euronext Paris, and dark pools. • Options competency but not in direct trading capacity 📈 Strategy development types • futures vs. equities arbitrage • event driven stat arbs • short term predictive models • fill and hedge/spread driven strategies • basis strategies • volatility arbitrage • both market making and 'taker' strategies • cross venue and cross region latency sensitive strategies ⚒️ Technical Skills & Credentials • R (expert), SQL (advanced), VBA, Bash scripting • C++ environment familiarity (not a developer role) • Tradingview, Pinescript • Strong familiarity working in Linux environments • Git, CI/CD workflows, Atlassian tools (JIRA etc) • AWS • Backtesting in Hadoop framework • Hands on experience with ITCH, OUCH, FIX, CME MDP 3.0 exchange data protocols • FINRA Series 7 licensed (held during tenure)

As an established Machine Learning Engineer, I bring a plethora of knowledge in AI, data science, and computer vision to the table. With a fantastic track record of successfully completing over 100 projects and amassing over 130 hours of practical experience, I am a trusted partner in your journey towards cutting-edge solutions. My experience includes Python, JavaScript, Django, Flask, React, Angular, HTML, CSS, Git, SQL, and REST APIs. I've developed my talents to not only construct appealing and user-friendly apps, but also predictive models and complex algorithms that drive data extraction, web scraping, and automation processes with pinpoint accuracy. While working with a wide range of customers, startups, and organizations, I've built a reputation for producing great outcomes and important insights that can help you surpass your competitors. My solutions are built to match your specific needs and drive business success, from improving operational efficiency to decreasing expenses and increasing income. Meeting the expertise of an experienced software engineer, I understand the whole software development lifecycle, guaranteeing flawless implementation from idea to execution. My careful approach to debugging and troubleshooting fixes issues quickly, allowing for the seamless growth of projects. I excel at front-end and back-end development, mobile app development, database management, cloud computing, and DevOps, ensuring that your projects are developed with scalability, security, and performance at their heart. I am devoted to effective communication and cooperation, making complicated technical concepts understandable, and building a transparent and productive partnership with a client-centric emphasis. My competitive hourly pricing, which is set at 25 dollars per hour, reflects the great value and return on investment I offer. I would love to show my previous work and experience on my profile and with clients as well. Let's harness the potential of AI and data science to improve your business and generate long-term success. My key highlights are: -Python and JavaScript knowledge -Agile methodology and database management -Full-stack development and mobile app development -DevOps and cloud computing -Designing for scalability and security, as well as testing and debugging -Knowledge of frameworks such as Django, React, and Angular -Outstanding communication, presentation, and narrative abilities I am also mentioning my particular expertise in each of the respective fields: -Data Analysis: Python (NumPy, Pandas), R, SQL -Data Science: Scikit-learn, TensorFlow, Keras, PyTorch -Computer Vision: OpenCV, Image Processing, Object Detection, Image Classification -DevOps: Git, Docker, Kubernetes, Jenkins -Web Development: Django, Flask, React, Angular, HTML, CSS -Cloud Computing: AWS, Google Cloud Platform (GCP) -Database Management: MySQL, PostgreSQL, MongoDB -Data Visualization: Matplotlib, Seaborn, Tableau -Big Data: Hadoop, Spark -Natural Language Processing (NLP): NLTK, spaCy -Automation: Selenium -Testing: Pytest, Robot -Machine Learning: Linear Regression, Decision Trees, Random Forests, Gradient Boosting, Support Vector Machines (SVM), K-Nearest Neighbors (KNN), Neural Networks -Deep Learning: Convolutional Neural Networks (CNN), Recurrent Neural Networks (RNN), Long Short Term Memory (LSTM), GANs -Operating Systems: Linux, Windows

AI, Machine Learning & AI Agents ★ Generative AI & Large Language Models (LLMs): Advanced prompt engineering, fine-tuning, multi-modal LLMs, domain-specific knowledge models ★ RAG (Retrieval-Augmented Generation) Pipelines: Enterprise-grade knowledge retrieval, question answering, semantic search, and hybrid search systems ★ AI Agent Engineering: Autonomous, multi-step agents, workflow orchestration, decision-making pipelines, AI-driven assistants ★ Deep Learning Architectures: Transformers, BERT, GPT, CNNs, RNNs, LSTMs, Autoencoders, GANs, diffusion models ★ Advanced Machine Learning: Ensemble methods (Random Forests, XGBoost, LightGBM, CatBoost), probabilistic modeling, Bayesian inference ★ NLP & Multilingual AI: Named Entity Recognition (NER), text classification, sentiment analysis, text summarization, translation, and semantic embeddings (including Amharic and low-resource languages) ★ Computer Vision: Object detection, OCR, semantic segmentation, pose estimation, video analysis, multimodal AI integration ★ MLOps & Model Lifecycle Management: Model versioning, deployment, monitoring, scaling, hyperparameter tuning, A/B testing, CI/CD pipelines for AI models ★ Vector Search & Embeddings: FAISS, Chroma, Pinecone, Milvus, semantic search, recommendation systems Data Science, Data Analysis & Data Engineering ★ETL/ELT Pipelines & Data Transformation: Enterprise-grade pipelines, automated cleaning, feature engineering, normalization, and integration ★Big Data & Distributed Computing: PySpark, Dask, Hadoop, distributed data processing, scalable analytics ★Data Modeling & Warehousing: Dimensional modeling, OLAP/OLTP systems, relational and NoSQL databases, data lake architectures ★Advanced Analytics & Forecasting: Statistical analysis, predictive modeling, time series forecasting, anomaly detection, causal inference ★Data Visualization & Insight Reporting: Interactive dashboards, KPI monitoring, storytelling with data using Plotly, Seaborn, Matplotlib, Tableau, Power BI ★Automated Workflow & AI Pipelines: Airflow, n8n, Prefect, Zapier, MLflow, automated monitoring, and alerting Backend & API Development ★ Python Backend Frameworks: Django, Flask, FastAPI with enterprise-grade design patterns, async microservices, high-throughput APIs ★ API & Microservices: RESTful & GraphQL APIs, OAuth2/JWT authentication, rate limiting, API versioning, and scalable service orchestration ★ Database Management: SQL (PostgreSQL, MySQL), NoSQL (MongoDB, Redis, Cassandra), database optimization, indexing, query performance tuning ★Asynchronous & Event-Driven Systems: Celery, RabbitMQ, Kafka, Redis queues, real-time streaming and task orchestration ★ Cloud Deployment & DevOps: AWS (Lambda, EC2, S3, SageMaker, RDS), Docker, Kubernetes, Helm, Terraform, CI/CD pipelines, monitoring (Prometheus/Grafana) Programming & Tools ★ Languages: Python (advanced OOP, concurrency, metaprogramming), SQL, JavaScript, Java, Bash/Shell scripting ★ AI & ML Tools: TensorFlow, PyTorch, Keras, Scikit-learn, Hugging Face Transformers, ★ LangChain, LangGraph, Prophet, Optuna, Ray Tune ★ Data Tools & Libraries: Pandas, NumPy, PySpark, Dask, Scipy, Tableau, Power BI, Excel Advanced Analytics ★ Backend & DevOps Tools: Django, Flask, FastAPI, Docker, Kubernetes, Git/GitHub, CI/CD pipelines, AWS, Terraform Additional Skills ★ Scripting & Automation: Bash, Python scripting for automation, task orchestration, and workflow optimization ★ Software Testing & QA: Unit testing, integration testing, automated testing frameworks, quality assurance, and code review best practices ★ Project Management Tools: Jira, Trello, Asana, Monday.com, and agile workflow management

I am an expert Quantitative Developer / Analyst with 7+ years of working experience in Hedge Funds. I have a solid background in Software development (15+ years) and extensive experience with data-related projects (10+ years) My experience includes the following: * working with all kinds of asset types: Equities, Options, Futures, Options on Futures, and Crypto. * developing different systematic trading strategies, including intraday, futures, options strategies, arbitrage, etc. * using ML in quantitative projects, like sentiment analysis. * working with dozens of different data APIs, from Yahoo Finance to Bloomberg * building custom dashboards/web apps with Plotly Dash / R Shiny. * building highly scalable cloud infrastructures in AWS. * deriving trading signals from vast amounts of open data. I'm one of the top-rated Pine Script Developers with 20k+ followers on TraidngView: QuantNomad The technological stack includes but is not limited to the following: Programming Languages: Python, R, Pine Script, EasyLanguage, C++ Backtesting engines: Vectorbt, Backtrader, selfmade option/future engines. Databases: PostgreSQL, MongoDB, Redshift, DynamoDB, Cloud Solutions: Amazon AWS, Microsoft Azure. Tools: Git, JIRA, Confluence. OS: Windows, Linux.

I'm a skilled Technical Recruiter / Headhunter who leverages AI-integrated processes to identify and deliver top-tier niche talent. For over a decade I've studied businesses in a variety of industries from the inside out getting a deep understanding of their unique team/technology/operations while advising on market insights and managing the recruitment strategy and process along the way. 🎖UpWork Expert Vetted Badge & Top Rated Plus Badge🎖 When we establish a business partnership I focus on working efficiently to identify the type of candidate that fits your specific business needs and environment. This is accomplished utilizing my proprietary sourcing/screening process and deep understanding of technology, industries, and market conditions in addition to my natural ability to read people ensuring you're not only getting an individual with the right skillset, but also a team member who fits your company's culture. Typical IT Placements Made: ✅ Executive Leadership ✅ AI/ML Engineers & Architects ✅ Security Engineers & Architects ✅ AWS / Azure Cloud Engineers & Architects ✅ Sales Hunters & Business Development Executives ✅ Product Managers / Owners ✅ Event & Digital Marketing Specialists/Managers ✅ Web / Wordpress Developers ✅ JavaScript & Python Developers ✅ DevOps Engineers & Architects ✅ SOC Analysts / Incident Response ✅ Threat Hunters ✅ Project / Program Managers ✅ Network Engineers ✅ .NET / Java Developers ✅ Mobile Development Engineers ✅ Help Desk / Desktop Support Typical Electronics Manufacturing Placements Made: ✅ Executive Leadership ✅ Engineering Managers ✅ LEAN / Process Engineers ✅ Program Managers ✅ Quality Engineers ✅ Production Managers ✅ Purchasing ✅ Planners ✅ Technicians, Inspectors, Assemblers 🏆 From an IT Executive who has been with Amazon, NerdWallet, Hallmark 🏆 "I've been hiring for these types of roles (at various organizations) for over a decade. You are the best recruiter I've ever had. Im not sure how you find these people but you do." 🏆 Review from an electronics manufacturing client I've worked with for 7 years 🏆 "ZZ Consulting and Zach, in particular, have been instrumental in recruiting candidates for our Management team, Engineers, and Program Managers. Zach does an excellent job in finding those “passive” candidates who are currently employed but are open to new opportunities. Anybody can place an advertisement and find people who are actively seeking employment but Zach has outperformed his competition by finding those candidates that are hard to reach on our own." Jay Cadler President EMS/CM Provider Keywords: GTM Go To Market AI Machine Learning LLM Large Language Model AWS Azure Terraform Kubernates IaaS Infrastructure as code IAS Insomnia Postman Java Nuxt Nextjs JavaScript React Reactjs GraphQL GIT Nitro Vue Vuejs Node Nodejs PostgreSQL REST CI CD Continuous Integration Continuous Development E-commerce Series A Series B Series C Javascript HTML Python IAM Active Directory Cybersecurity SOC SIEM Threat Hunting Encryption IPS IDS Pen Penetration Splunk Carbon Black Crowdstrike Malware Cloud HubSpot SalesForce C# PHP Swift SMT PCB PCBA BGA CM EMS ATS Breezy HR Zoho Recruit Greenhouse JazzHR ava, C++, HTML5, CSS3, SQL, Unix, Linux, RedHat, .NET, iOS, Android, Active Directory, SDLC, HPQC, Vizio, MS Project, Waterfall, Agile, Scrum, Salesforce, Hadoop, ZenDesk, Spiceworks, Freshdesk

Seasoned Senior Database Architect with 10+ years of experience designing, optimizing, and managing large-scale database systems. I specialize in PostgreSQL, MySQL, Microsoft SQL Server, and Power BI, delivering high-performance solutions that support critical business operations. 🚀 Key Achievements: Lead architect for the Paris 2024 Olympic Games, designing MySQL-based systems for OnePlan Events. Spearheaded the redesign and database optimization of VMware vSphere (6.7 to 8.0), improving automation and system performance. 🛠️ Expertise Includes: Database Design & Optimization (PostgreSQL, MySQL, SQL Server) ETL Pipelines, Data Warehousing, and Data Migration SQL Query Performance Tuning and Optimization Power BI Dashboards and Advanced Data Analysis NoSQL Technologies: MongoDB, Oracle I thrive on translating complex data challenges into scalable, reliable, and efficient solutions, working closely with engineers, analysts, and stakeholders to drive results. Whether you need to optimize an existing database, migrate critical data, or build a robust Power BI reporting system, I bring a strategic, business-driven approach to every project. 📩 Let’s connect to discuss how I can help your business scale with smarter, faster, and more resilient data solutions.

Hello! I am a Bay Area based full-stack graphic designer dedicated to complete designs with an understanding of your business goals and user mindset. I believe in beautiful, clean design that tells your brand story and makes complex ideas accessible. • Logos • Presentations (Pitch Decks, Templates, Etc.) • Brand Guidelines • Website Design • Website Development (SquareSpace, Wordpress, Webflow) • Infographics • Business Cards • Social Media • Display Banners • Flyers • One-Sheets • Brochures • White Papers • Illustration • Iconography

I help engineering teams deliver complex software projects by providing technical leadership, architectural guidance, and clear communication between developers and stakeholders. If you need a fractional technical lead who can step in quickly, earn the team's trust, and keep projects moving, that's what I do. Over the past 20+ years, I've architected, designed, and delivered distributed systems, data platforms, and cloud-native applications across high-growth startups and large enterprises, including Capital One, LendUp, and Omniscience. My technical background spans cloud-native systems on AWS, event-driven architectures with Kafka, large-scale data pipelines using Spark and Hadoop, and backend services in Java and TypeScript. I stay current with AI and LLM engineering trends so I can help teams evaluate where these technologies fit within existing architectures and workflows. I also published a technical article on microservices architecture for the Capital One Engineering blog. Beyond architecture, my strength is leading technical execution. As a Tech Lead and acting Scrum Master, I facilitated sprint planning, backlog refinement, and retrospectives while working closely with product owners and senior leadership. I redesigned the contractor hiring process, which eliminated ineligible candidates earlier and improved interview efficiency by 50%. I also created retrospective conditions where developers felt safe enough to share real concerns, which led to measurable improvements in team morale and motivation. In addition to my engineering background, I’m a certified stress and burnout recovery coach. That experience brought a dimension of emotional intelligence that is essential to effective leadership: the ability to build trust, facilitate productive conversations, navigate conflict, and create an environment where engineers feel supported. Education and Certifications: MS in Software Engineering, Carnegie Mellon University; BS in Computer Science, University of Tehran; Certified ScrumMaster (Scrum Alliance); AWS Certified Solutions Architect. If you need someone who can lead engineering teams, manage delivery, keep stakeholders and developers aligned without losing sight of the technical details, let's talk.

I’m a seasoned Data Engineer with a strong academic foundation and extensive professional experience in designing, implementing, and optimizing data pipelines that power data-driven decision-making across diverse and complex organizations. I specialize in building scalable, resilient, and secure data architectures tailored to the unique needs of businesses—ensuring seamless data access, transformation, and storage across enterprise systems. 🔧 Technical Expertise: Programming & Data Tools: Python, SQL, R, Power BI, and machine learning libraries ETL & Data Architecture: Advanced ETL pipelines, data warehousing, and data governance strategies that ensure high data quality and compliance Big Data & Cloud: Proficient in Apache Spark, Hadoop, and cloud platforms (AWS, Azure, GCP) for efficient and scalable data processing Optimization & Collaboration: Skilled in performance tuning, cross-functional collaboration, and translating complex business requirements into actionable data solutions Whether you need help modernizing your data stack, implementing a robust analytics pipeline, or transforming messy data into clear insights, I bring a strategic and hands-on approach to help your business thrive with data.

With an MBA in Finance and over 10 years of professional experience, I have developed expertise in Risk Management, Fraud Investigation, Project Management, Internal Audit, Compliance Testing, Corporate Banking, and Operations. I have successfully led teams and provided strategic direction to achieve organizational objectives. My experience includes proficiency in utilizing various tools and programming languages such as SQL, Big Data Hadoop, Hive, VBA, Tableau, Advanced Excel, and several Business Intelligence (BI) tools. Additionally, I am a certified Trifacta Wrangler professional, having achieved a score of 94% on the certification exam.