I excel at analyzing and manipulating data, from megabytes to petabytes, to help you complete your task or gain a competitive edge. My first and only language is English. My favorite tools: Tableau, Alteryx, Spark (EMR & Databricks), Presto, Nginx/Openresty, Snowflake and any Amazon Web Services tool/service (S3, Athena, Glue, RDS/Aurora, Redshift Spectrum). I have these third-party certifications: - Alteryx Advanced Certified - Amazon Web Services (AWS) Certified Solutions Architect - Professional - Amazon Web Services (AWS) Certified Big Data - Specialty - Amazon Web Services (AWS) Certified Advanced Networking - Specialty - Amazon Web Services (AWS) Certified Machine Learning - Specialty - Databricks Certified Developer:
 Apache Spark™ 2.X - Tableau Desktop Qualified Associate I'm looking for one-time and ongoing projects. I especially enjoy working with large datasets in the finance, healthcare, ad tech, and business operations industries. I possess a combination of analytic, machine learning, data mining, statistical skills, and experience with algorithms and software development/authoring code. Perhaps the most important skill I possess is the ability to explain the significance of data in a way that others can easily understand. Types of work I do: - Consulting: How to solve a problem without actually solving it. - Doing: Solving your problem based on your existing understanding of how to solve it. - Concept: Exploring how to get the result you are interested in. - Research: Finding out what is possible, given a limited scope (time, money) and your resources. - Validation: Guiding your existing or new team is going to solve your problem. My development environment: I generally use a dual computer-quad-monitor setup to access my various virtualized environments over my office fiber connection. This allows me to use any os needed (mac/windows */*nix) and also to rent any AWS hardware needed for faster project execution time and to simulate clients' production environments as needed. I also have all tools installed in the environments which make the most sense. I'm authorized to work in the USA. I can provide signed nondisclosure, noncompete and invention assignment agreements above and beyond the Upwork terms if needed. However, I prefer to use the pre-written Optional Service Contract Terms www [dot] upwork [dot] com/legal#optional-service-contract-terms.

I am a highly experienced full stack and devops engineer that can bring valuable expertise to a variety of projects; Whether you are a small business looking to launch an ecommerce website, a nonprofit looking to modernize your digital infrastructure or an entrepreneur looking to stand up a computational prototype, I'm your guy! I've founded a profitable business and have a range of expertise not only in hard technical areas, but also adjacent domains like digital marketing/SEO, customer discovery and UX design. If you're looking for someone pragmatic, who possesses broad experience, excellent interpersonal skills and who can delivery quickly and reliably, then you should shoot me a message!

I’m a senior mobile app developer who helps startups and businesses launch high-performing apps quickly. I’ve built and shipped multiple apps on the App Store and Google Play, including Star Twin, Apex AI, and Jewelry Vault. I specialize in: • React Native / Next.js / TypeScript apps • AI integrations (OpenAI, Gemini, Replicate, custom models) • Payments integration. • Mobile App backends. • SaaS backends and scalable APIs I like to move quickly, from idea to a working MVP in weeks, not months. ⚡ Want to add AI-powered features to your mobile app? Let’s talk.

Full Stack and AI engineering leader who designs and builds production-grade applications using React, Node.js, Python, and AWS. Amazon and Verizon alum with deep experience in distributed systems, IoT platforms, real-time data pipelines, and applied AI/LLM integrations. Hands-on developer comfortable building frontend interfaces, backend APIs, ML pipelines, and cloud-native architectures. Combines strong product intuition with the ability to architect, code, and deploy intelligent systems that scale globally.

I am a lead developer with three years of experience in building dynamic applications using Angular, React, .NET, and Flutter. My projects have ranged from full-stack solutions to front-end developments, where I focus on creating user-friendly interfaces that enhance user experience. I thrive in collaborative environments, utilizing my leadership skills to guide teams and foster creativity. My technical expertise is complemented by strong organizational abilities and a commitment to meeting deadlines. If you're looking for a developer who can tackle challenges head-on and deliver high-quality results, let's discuss how I can contribute to your project and help you achieve your goals.

I build patient-facing healthcare applications and the practice-side systems used to manage them. Using the Flexway platform, I help independent practices, healthcare founders, and care organizations turn their methodology into a structured continuous care experience. The result is not just a patient portal. It is a connected care system that can include: A branded patient application Daily care plans, tasks, check-ins, and progress tracking Patient updates through photos, documents, voice notes, and device readings Practice-side workflows for reviewing patients and prioritizing follow-up Patient signals, structured reports, and AI-assisted care intelligence Products, memberships, services, laboratories, pharmacies, devices, and care partners Healthcare document generation and processing Operational support around fulfillment, coordination, and patient experience Each implementation is designed around the practice’s own care model, patient journey, services, and operational requirements. Flexway is especially suitable for organizations developing membership care, cash-pay services, longitudinal programs, and other models where patient engagement and continuity matter beyond a single consultation. I can help you define the care experience, structure the workflows, configure the patient and practice applications, connect the required resources, and prepare the system for real-world use.

As a Senior Product Designer with 20 years of experience, I specialise in the operational engine rooms of digital products: case management systems, agent-facing help desks, manager dashboards, and data-dense enterprise workflows, designed end to end from journey mapping through to shipped screens. My financial services background spans HMRC, CreditFix Debt Solutions, Brookson's business and personal wealth portal, and FinancialForce's Salesforce-based financial applications, alongside agent-facing ServiceNow tooling for DWP and Bayer and criminal case management workflows for the Ministry of Justice. Equal parts UX and UI, I bring structure to ambiguous, multi-system builds, communicate design rationale confidently to stakeholders, and work daily in Figma, Jira, and Confluence, with tablet/mobile app experience across iOS and Android and an active AI-assisted design workflow. My global product work at Philips and Amadeus included designing for RTL (Arabic) locales.

I provide complete software solutions to my clients. I can work with you even if all you have is an idea. Programming Languages - Ruby - C/C++ - Python - Golang - Java Web Development - HTML/CSS/JavaScript - NodeJs, AngularJs, JQuery, Bootstrap, RESTful API, MQTT - Apache, PHP, Tomcat Systems - Linux - Docker, Kubernetes - MySQL, PostgreSQL, MongoDB - AWS: IoT, SQS, EC2, RDBMS, Aurora Db - Raspberry Pi, Arduino, AVR Microcontrollers, IoT - RFIDs, RF Transceivers, ESP8266 - Android/iOS development Certifications - CompTIA Security+

I'm a backend and AI infrastructure engineer with 11 years building production systems at Razorpay, Cashfree, and CustomGPT - currently Lead Engineer at CustomGPT, where I own our AI data pipeline and LLM orchestration layer. Recent work clients hire me for: - Migrating 330M+ vector embeddings from Pinecone to pgvector with zero downtime, cutting vector DB costs by 70% - Building multi-provider LLM orchestration (OpenAI, Anthropic, Azure OpenAI) with failover and cost routing - Designing async ingestion pipelines (Python, Celery, Redis) processing docs/web content at scale - Cutting AWS infra spend (reduced a $30K/month bill to $21K) through query optimization and right-sizing - Full observability stack setup (Prometheus, Grafana, Loki, OpenTelemetry) I've also led a monolith-to-microservices migration handling real payment infrastructure (UPI, cards, netbanking) at IPL-scale traffic. If you need someone who can both architect the system and actually ship it, not just advise - let's talk about your project.

Internationally-known Sr. Software Developer/Architect/Manager with a wide range of experience in everything from mobile app creation on iOS (Apple iPhone & iPad) and Android to other platforms such as the back-end web services that support the mobile apps. Proven track record of developing high-quality software on time and within budget every time for small businesses and Fortune 500 companies including Google, Apple, MCI, Intel, and Verizon. Notable Achievements: * Inventor of 12 patents. * Inventor of both Voice over IP & Skype. * Legal strategist/expert witness for Sony in VoIP case. * Created Europe's first PC-to-Phone calling service. * Provided technical evaluation of a $4 Billion business deal for Qwest. * Created a crime analysis system for Police Departments. * Created high-traffic e-commerce websites integrated with vendors and distributors using EDI. * Created an assembly-line software system for a high-end hardware repair company. * Co-created Walmart's in-store television broadcasting system. * Created mobile apps for customer order management. * Added barcode scanning functionality to several mobile apps. * Created Yellow Pages mobile app for large phone book publisher. * Created weather apps, news apps, social network apps, podcasting apps, and others. Specialties: Software architecture, development, and management roles. Technologies such as C/C++, Assembly, PHP, Laravel, Java, Javascript, Objective-C, C#, .NET, MS SQL Server, Oracle, MySQL, PostgreSQL, XML, HTML, Android, iPhone iOS, VoIP, H.323, SIP, Linux, Apache, Windows, Mac OS X, AJAX, and SOAP.