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Senior Full‑Stack Developer with over seven years’ experience designing, building and maintaining large‑scale web applications. Track record of delivering end‑to‑end solutions by partnering with stakeholders to translate business and user needs into reliable software. Committed to clean, maintainable code, performance tuning, security best practices, and automated CI/CD pipelines. Nearly two years of hands‑on AI experience, integrating machine learning models and automation to boost product intelligence. I’ve contributed as a developer at global leaders Adobe and Newgen, as well as at high‑growth startups MoveInSync and Zillious Solutions. Skills Advanced: Java, MySQL, PostgreSQL, Spring, Hibernate, Spring Boot, Maven/Gradle, Microservices, Multithreading & Concurrency Control, Web Services (SOAP & REST), RPC, Git, Google Cloud Platform (GCP), Database Modeling & Schema Design, SQL (Stored Procedures/Functions, Triggers), Docker, Kubernetes. Intermediate: TypeScript, Python, Angular, React, API Gateway, Service Discovery, Load Balancer, ELK Stack, Kafka, RabbitMQ, Redis Cache, RAG (Retrieval-Augmented Generation), AI Agents, LangGraph, Vector Databases, AI Workflows, Fine‑Tuning. Core Strengths: Scalable system design, back‑end architecture, data structures & algorithms. How I Can Help You – I’m here to tackle your toughest technical challenges with expertise and dedication. Special Offer – Enjoy your first session free! (Terms & Conditions apply — let’s discuss your needs during our requirement-gathering call.) Satisfaction Guaranteed – Not satisfied? Request an instant refund, no questions asked. For a comprehensive overview of additional technologies and frameworks tailored to your needs, please refer to the Expertise section of my profile.
Microsoft AI Certified and Innovative Applications Architect with 8+ years of IT experience and extensive knowledge on Designing, Architecting, Developing, Deploying and Testing well versed technical solutions using C++, C#, [ASP.NET](http://asp.net/), .NET Core, .NET 5/6/7/8, Angular, Angular JS, JavaScript, JQuery, HTML5, CSS3, SASS, IONIC 5, T-SQL.
I’m a Senior Software Engineer with 10+ years of experience building scalable full-stack, SaaS, and AI-powered applications. My core stack includes JavaScript/TypeScript, React, Node.js, Python, PostgreSQL, and AWS, with strong experience designing cloud-native and microservices-based systems. In recent years, I’ve focused heavily on AI-driven platforms and intelligent automation. I recently architected an enterprise AI copilot platform using Python (FastAPI), Node.js, LangChain, Weaviate, and multiple LLM providers. The platform supports conversational AI, RAG-based document retrieval, realtime streaming responses, and voice interaction using speech-to-text and text-to-speech services. I’ve also worked on AI-driven multimedia systems involving voice-enabled AI avatars, realtime conversational interfaces, media upload pipelines, and AI-assisted content workflows. My experience includes practical use of FFmpeg for media compression, streaming optimization, format conversion, and multimedia processing workflows, alongside integrations with OpenAI and ElevenLabs APIs for voice and conversational AI experiences. Previously, I developed AI assistants and automation tools including a LangChain-powered ecommerce support chatbot and a voice-enabled AI assistant using Flask, ChromaDB, and OpenAI. These systems combined LLM reasoning with contextual retrieval pipelines to deliver accurate, production-ready AI interactions. Beyond AI systems, I’ve built and scaled multiple production SaaS platforms across fintech, ecommerce, HR, e-voting, and enterprise operations. Notable projects include FlexiCoop (multi-tenant fintech SaaS), Fivage cloud storage platform, Scavenge ecommerce systems, and cross-platform offline-first POS applications built with Electron. On the infrastructure side, I regularly deploy and scale applications using AWS services including EC2, RDS, S3, CloudFront, Route53, IAM, and CI/CD pipelines through GitHub Actions and AWS Amplify. I also actively leverage AI-assisted development tools such as Cursor, GitHub Copilot, and ChatGPT to accelerate engineering workflows, refactor legacy systems, and rapidly prototype scalable features. Overall, I enjoy building AI-enabled products and scalable systems that bridge intelligent automation with real business workflows while delivering reliable, high-performance user experiences. Currently, I am actively building and scaling AI-powered SaaS systems, enterprise copilots, fintech platforms, and conversational AI workflows involving RAG pipelines, vector databases, voice interaction systems, and cloud-native infrastructure.
Senior Software Engineer with 8 years of experience building backend applications and enterprise software. Experienced in Java, Spring Boot, Microservices, REST APIs, System Design, and Distributed Systems. Worked on scalable applications, performance optimization, production support, and software architecture. Currently working at Microsoft, contributing to the WPF framework and leading initiatives around modernization, automation, accessibility, and performance improvements. Previously worked at Siemens Healthineers building backend services and APIs for medical imaging systems. Skilled in designing reliable, scalable, and maintainable software solutions while collaborating with cross-functional teams. Core expertise: • Distributed Systems & Microservices • System Design (HLD + LLD) • Java, Spring Boot, C#, .NET, [ASP.NET](http://asp.net/) • REST APIs & Backend Engineering • Performance Optimization & Scalability • Concurrency, Reliability, and Production Debugging • CI/CD and Release Engineering Conducted 50+ design/code reviews and contributed to engineering best practices across teams.
Application Developer in a wide variety of business applications. Particularly interested in server side technologies. Experienced in Java J2EE web application development including Content Management System (Alfresco), Portal Applications (Liferay and SharePoint). Experience in interfacing different business application using middleware servers (BizTalk, SSIS). Experience in Big Data Implementation using Spark, Scala, Hive, Hbase, and Pig. Experience in various domain like banking (credit card application), media & entertainment, Logistic and manufacturing. Specialties: Big Data Application implementation in Scala and spark using Horton works platform. Design and Implemented projects with data load up to 1 TB per hour with complex transformation.
I’m a full-stack software engineer with experience building AI-powered applications, scalable backend systems, automation tools, and modern web platforms. Over the years, I’ve worked across different areas of technology — from backend architecture and cloud infrastructure to frontend development, APIs, automation, and real-time systems. Recently, I’ve been focused heavily on AI/LLM applications, including conversational systems, speech-to-text pipelines, text-to-speech services, and language learning platforms powered by local and cloud-based models. I work primarily with: • Python (FastAPI, Flask) • Node.js / Express • React / Next.js • PostgreSQL • Docker & microservices • Firebase • AWS & Linux environments I enjoy solving difficult engineering problems, simplifying complex systems, and helping founders or teams move projects forward quickly without unnecessary overengineering. Some of the things I can help with: * AI/LLM integrations * ChatGPT/OpenAI integrations * Microservices architecture * REST APIs * Backend systems * Authentication systems * Docker deployment * Automation scripts * Web app development * Debugging difficult production issues * Performance optimization * Cloud/server setup * Speech-to-text and voice applications I also have a background in Electrical/Electronics Engineering, which shaped the way I approach systems, troubleshooting, and problem-solving in software. If you need someone who can jump into an existing project, understand systems quickly, and build practical solutions, I’d be happy to help.
Backend Developer with knowledge of **PHP**, **JS**, **React**, **MySQL,** **MongoDB**. Former employee of _Anvato Inc_, **Google TVC** Former employee of Jotform Inc. Enthusiast on web backend development.
I'm Full-Stack Software Engineer who has a passion for building high quality software that meets the diverse and complex needs of my clients. I specialize in web development using cutting-edge technologies such as Node.js, Typescript, Java, Spring Boot, React, Redux, Nest.js, WASM (mainly Rust), OpenAPI, Docker, Kubernetes, Serverless and AWS. My mission is to create maintainable, testable, and scalable code that delivers value and solves problems. I have successfully migrated legacy applications to modern frameworks and platforms, built scalable and secure cloud-based solutions, and developed innovative features and functionalities for various industries and domains. I also have experience in working with big data and generating reports for operational analytics. I have a Bachelor's degree in Computer Science from Rivers State University of Science and Technology. I am always eager to learn new technologies and best practices.
Hey I'm Oscar! I'm a full-stack software engineer currently working for Snapchat and I've worked with C/C++/C#, Swift, JavaScript, Golang and more! My top frameworks are Node.JS, React, React Native. I love helping others and finding solutions to any problem. Over the years, I have build websites, mobile apps and robust backend architectures with the latest technologies.
Hardik is extremely experienced Software Engineer with over **11** years of experience in designing and developing large-scale mission-critical software products. He currently specialises in backend development using technologies like `Java, Spring Boot, Kafka, RDBMS, NoSQL DB, Supabase, Postgres, Snowflake, AWS, GCP, BigQuery, NodeJS, Third Party Payment Integrations, migrating monolith applications to microservices, CQRS, event driven microservices, distributed systems and much more`. Hardik is good practitioner of Test Driven Development approach. Hardik have used Kafka streams for asynchronous event processing in microservice architecture. He is also a winner of more than **5** state level and national level coding competitions. **He has superb communication and presentation skills.** Hardik can handle any project needs - from bootstrapping a fresh project to provisioning servers / cloud services to deployments and maintenance. Schedule a meeting: https://calendly.com/hardikavaiya/15min
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