Devendrasinh Chauhan

Devendra (Dave) Full stack Front-end, back-end & DevOps Engineer SUMMARY • Total over a decade of experience across Cloud Computing, IoT, Web/Mobile Development, DevOps, and Linux Server Administration, with 6+ years of hands-on expertise in AI/ML and Generative AI. • Strong expertise in Generative AI/ML including OpenAI, Azure OpenAI, LangChain, LLMs, LlamaIndex, Vector Databases, and RAG-based applications. • Solid decade-long experience in IoT, along with full-stack Web & Mobile development, system architecture, and cloud-native engineering. • Technologies: ReactJS, Redux, Next.js, Node.js, MongoDB, Python (Django, FastAPI), PHP, MySQL, MS SQL, DynamoDB, Golang, Cassandra, Apache, SVN, Git. • Architecture Expertise: Microservices, Serverless (AWS Lambda), REST & gRPC APIs, RabbitMQ. • DevOps Tools: Docker, Kubernetes, Terraform, Ansible, Chef, Puppet, Jenkins, GitHub Actions, Git. • Extensive experience with AWS & Azure Services including Azure Functions, Azure DevOps, Azure OpenAI, App Services, Storage Accounts, Route53, ACM, Elastic Load Balancer, EFS, Data Pipeline, Data Lake, AWS Glue, EKS/ETL, IoT, ML, Sagemaker, AppSync, Cognito, Amplify, S3, EC2, ECS, ECR, LBS, RDS, MTurk, Lambda, API Gateway, DynamoDB, SES, SNS, MWAA (Apache Airflow), CodeDeploy, CodeCommit, BeanStalk, MediaConvert, Media Pipeline, MediaPackage, MediaLive, MediaStore, Chime, and many others. • Monitoring/Test Tools: Grafana, CloudWatch, Jest, Mocha. . AI SKILLS I bring forth over 6 years of hands-on experience in Generative AI, OpenAI. My proficiency extends across a diverse skill set, combining expertise in custom AI Chatbots, Generative AI, and leveraging state-of-the-art Large Language models. Specializing in crafting Conversational Agents, I navigate the complexities of AI Development frameworks and platforms with finesse. Page 1 Devendra (Dave) Full stack Front-end, back-end & DevOps Engineer KEY PROJECTS 1. Project: D2C – Direct To Carrier ( https://directtocarrier.io/ ) Domain: Logistics & Supply Chain (Carriers, Shippers & Freight Intermediaries) Description: D2C is a cloud-native logistics platform that enables carriers, shippers, and freight intermediaries to manage loads, automate workflows, track shipments, and exchange logistics data efficiently using a scalable serverless architecture. Responsibilities: Worked as a Full Stack Engineer & Serverless Architect, responsible for designing and implementing end-to-end serverless solutions, developing scalable backend APIs, building ReactJS-based frontend modules, integrating third-party logistics services, optimizing cloud performance and costs, ensuring security and reliability, and collaborating with cross-functional teams to deliver high-availability logistics workflows on AWS. Tech Stack: Python, FastAPI, Node.js, ReactJS, Redux, AWS Lambda, API Gateway, DynamoDB/RDS, S3, IAM, Cognito, CloudWatch, SQS/SNS, Serverless Framework, Git October’ 2024 – September’ 2025 2. Project: Delta Thermal – IoT Serverless Cloud Application ( https://deltathermalinc.com/ ) Domain: IoT, Industrial Monitoring & Cloud Analytics Description: Delta Thermal is a serverless, cloud-based IoT application designed to monitor, analyze, and visualize real-time thermal and operational data from connected devices. The platform supports live data streaming, GPS tracking, map-based visualization, analytics dashboards, and statistical reporting to enable better operational insights and decision-making for industrial use cases. Responsibilities: Worked as a Full Stack Engineer, responsible for designing and developing serverless backend services, building real-time ReactJS dashboards, integrating IoT device data streams, implementing socket-based communication, GPS and Google Maps tracking, performing data processing and analysis using Python libraries, exposing GraphQL APIs, and ensuring scalability, reliability, and performance on AWS cloud infrastructure. Tech Stack: Python, Node.js, ReactJS, AWS Lambda, API Gateway, DynamoDB, GraphQL, Socket.IO, GPS, Google Maps API, NumPy, OpenCV, CloudWatch, Git January’ 2024 – September’ 2024 3. Project: Cashrewards – ( https://www.cashrewards.com.au/ ) Domain: E-Commerce / Cashback & Rewards Marketplace Description: Cashrewards is a high-traffic cashback and rewards marketplace enabling users to earn cashback, bonuses, and gift cards by shopping with partnered merchants. The platform supports complex partner Page 2 Devendra (Dave) Full stack Front-end, back-end & DevOps Engineer integrations, secure transactions, investor dashboards, and scalable reward calculations with strong performance and SEO requirements. Responsibilities: Worked as a Full Stack Developer, responsible for building and maintaining high-performance frontend applications using React and Next.js with server-side rendering for SEO optimization; developing and managing Node.js microservices for user accounts, cashback computation, gift card redemptions, and investor modules; designing secure REST and GraphQL APIs for partner, payment, and promotion integrations; implementing scalable data models in MongoDB for fast geolocation-based queries; leveraging AWS serverless services to build event-driven, cost-efficient architectures; implementing authentication (JWT), caching, rate limiting, and API security; deploying and maintaining services on AWS; and setting up CI/CD pipelines for automated deployments and rollbacks. Tech Stack: ReactJS, Next.js, Redux, Tailwind CSS, Node.js, Express, REST & GraphQL APIs, MongoDB, AWS Lambda, API Gateway, S3, CloudFront, CloudWatch, CI/CD, JWT Authentication January’ 2023 – December’ 2023 4. Project: FibonacciPartner ( https://fibonaccipartner.com/ ) Domain: AI-Driven Digital Marketing & Analytics Description: FibonacciPartner is an AI-powered marketing platform designed to help businesses analyze, optimize, and scale their digital marketing campaigns across social media channels. The platform leverages data analytics, AI insights, and performance statistics to improve campaign ROI on platforms like Facebook, Instagram, and TikTok. Responsibilities: Worked as a Full Stack Engineer, responsible for developing AI-enabled backend services, building responsive ReactJS dashboards, integrating social media marketing APIs, processing and analyzing large datasets for campaign insights, implementing serverless workflows on AWS, and ensuring scalable, secure, and high-performance delivery of marketing analytics features. Tech Stack: Python, FastAPI, ReactJS, AWS Lambda, API Gateway, S3, DynamoDB/RDS, CloudWatch, Facebook Ads API, Instagram API, TikTok API, Parquet Data Processing, Statistics & Analytics, Git July’ 2022 – Dec’ 2022 5. Project: Makerble – ( https://about.makerble.com/ ) Domain: CRM / Impact Management Platform Description: Makerble is a unified 4-in-1 platform combining CRM, Scheduling, Surveys, and Impact Reporting to help organizations effectively manage participants, streamline operations, and measure outcomes in real time. The platform replaces disconnected spreadsheets and siloed systems with a single, insight-driven solution. Responsibilities: Worked as a Full Stack Developer, responsible for developing and maintaining frontend applications, designing and implementing backend APIs, managing databases, and handling DevOps tasks. Contributed to building scalable ReactJS user interfaces, developing secure Node.js APIs, optimizing PostgreSQL Page 3 Devendra (Dave) Full stack Front-end, back-end & DevOps Engineer data models, deploying and maintaining cloud infrastructure on AWS, and ensuring system reliability, performance, and scalability. Tech Stack: AWS Services, ReactJS, Next.JS, JavaScript, TypeScript, Node.js, PostgreSQL, REST APIs, CI/CD, Git January’ 2021 – June’ 2022 6. Project: RepoApp – ( https://www.repoapp.com/ ) Domain: Platform - Lost & Found Management / Customer Claims / Hospitality & Retail Solutions Description: RepoApp is a centralized lost and found property management platform that helps businesses in loss prevention, hospitality, and guest relations efficiently track, manage, and recover lost items and customer claims. The system enables faster resolution, improved customer experience, and operational efficiency for organizations handling high volumes of lost property. Responsibilities: Worked as a Full Stack Developer, responsible for writing clean and logical code, developing core lost-and-found property management modules, implementing workflows for loss prevention and guest relationship teams, building powerful search functionality for quick identification and retrieval of items, and reviewing development activities to ensure compliance with SOPs and quality standards. Tech Stack: Angular, TypeScript, JavaScript, Node.js, AWS Services, REST APIs, Git January’ 2018 – December’ 2020 7. Project: Lighthouse AI – ( https://app.lighthouseai.com ) Domain: AI-Driven Pharmaceutical Supply Chain & Analytics Description: Lighthouse AI is an AI-powered platform designed to optimize and modernize pharmaceutical supply chain operations. The system leverages advanced analytics, machine learning, and generative AI to improve demand forecasting, inventory optimization, risk prediction, and decision-making across complex pharma supply networks. Responsibilities: Worked as a Backend Engineer, responsible for developing scalable data processing pipelines, implementing AI/ML-driven backend services, handling large-scale data transformations, integrating predictive models into production workflows, optimizing performance for analytics workloads, and ensuring reliability and accuracy of supply chain insights using distributed computing and machine learning frameworks. Tech Stack: Python, FastAPI, Generative AI, PySpark, TensorFlow, PyTorch, Keras, NumPy, Pandas, Machine Learning Pipelines, Data Analytics November’ 2016 – October’ 2017 Page 4 Devendra (Dave) Full stack Front-end, back-end & DevOps Engineer 8. Project: IOOGO – DIY Tax – ( https://ioogo.com/ ) Domain: US Income Tax SaaS Platform Description: IOOGO – DIY Tax is a US-based SaaS tax filing and financial management platform that enables individuals and businesses to prepare, validate, and file income tax returns online. The platform provides step-by-step tax guidance, automated calculations, secure document management, and compliance-focused workflows. Responsibilities: Worked as a Backend API Developer, responsible for designing and developing secure, highperformance RESTful APIs to support tax filing, accounting, and financial planning modules; implementing real-time data validation and secure document upload workflows; integrating third-party services for email and SMS notifications; designing and optimizing MongoDB schemas for tax records, financial data, and audit logs; deploying and maintaining backend microservices on GCP; and collaborating closely with frontend teams to define API contracts and ensure seamless integration. Tech Stack: Node.js, Nest.js, Express, REST APIs, MongoDB, ReactJS, Google Cloud Platform (GCP), Email & SMS Integrations, Git May’ 2016 – October’ 2016 9. Project: Otsuka Healthcare Platform – ( https://www.otsuka.com/en/ ) Domain: Healthcare, Life Sciences & Data Analytics Description: Otsuka Healthcare Platform is a data-driven healthcare and life sciences solution focused on analyzing large-scale clinical, operational, and research datasets to support healthcare insights, decisionmaking, and innovation. The platform leverages advanced analytics, machine learning, and scalable data pipelines to enable secure and efficient processing of healthcare data. Responsibilities: Worked as a Full Stack Developer, responsible for designing and developing backend data processing services and APIs using Python and Go; building scalable data pipelines and analytics workflows using PySpark and AWS Redshift; implementing machine learning models and data transformations for healthcare insights; developing frontend integrations and dashboards where required; optimizing data ingestion, processing, and querying for large datasets; collaborating with data scientists and stakeholders to translate analytical requirements into production-ready solutions; and ensuring performance, security, and scalability across the platform. Tech Stack: Python, Go (Goland), AWS Redshift, Machine Learning, PySpark, PyTorch, NumPy, Pandas, Requests, AWS Services, REST APIs, Git Aug’ 2015 – April’ 2016 10. Project: Roomzz – ( http://roomzz.net ) Domain: Online Video Conferencing & Real-Time Communication Page 5 Devendra (Dave) Full stack Front-end, back-end & DevOps Engineer Description: Roomzz is a cloud-based online video meeting platform built to support secure, scalable, and high-quality virtual communication. The platform enables real-time video meetings, live streaming, and interactive sessions for users, leveraging cloud-native services to ensure low latency and high availability. Responsibilities: Contributed to the development of the platform by building and integrating frontend and backend components, implementing real-time video communication and live streaming features, integrating third-party communication services, managing cloud infrastructure on AWS, and ensuring scalability, performance, and reliability of the system. Tech Stack: AWS Services, ReactJS, Nest.js, Node.js, AWS Chime, Twilio, MUX Live Streaming, WebRTC, REST APIs, CI/CD, Git June’ 2013 – May’ 2015 11. Project: TIN – ( https://tin.info ) Domain: SaaS Platform for Digital Marketing Services Description: TIN is a SaaS-based digital marketing platform providing marketing automation, analytics, communication, and third-party service integrations for businesses. Responsibilities: Worked as a Full Stack Developer, responsible for developing backend APIs, frontend dashboards, integrating communication and Google APIs, managing cloud services, and ensuring scalable and secure application delivery. Tech Stack: AWS Services, Python, FastAPI, ReactJS, Node.js, AWS Chime, Twilio, Google APIs, REST APIs July’ 2012 - May’ 2013 12. Project: Toolsvilla – ( https://toolsvilla.com/ ) Domain: B2B eCommerce Platform Description: Toolsvilla is a B2B eCommerce platform enabling manufacturers, distributors, and businesses to buy and sell industrial tools and equipment through a scalable digital marketplace. Responsibilities: Worked on frontend and backend development, implemented product catalogs, order workflows, and integrations, built scalable APIs, and deployed cloud-based services to support B2B commerce operations. Tech Stack: Angular, Node.js, Python (Django), AWS Services Feb’ 2011 - June’ 2012 EDUCATION • BACHELOR OF ARTS (ENGLISH), GUJARAT UNIVERSITY – MAY’ 1994 – JUNE’ 1997 Page 6 Devendra (Dave) Full stack Front-end, back-end & DevOps Engineer • • • DIPLOMA IN INFORMATION TECHNOLOGY, APTEH COMPUTER EDUCATION – AUGUST’ 1997 – DECEMBER’ 2000 COMPUTER OPERATING & PROGRAMMING ASST. (COPA), I.T.I. VARDHARI – JANUARY’ 2000 – DECEMBER’ 2001 SECRETARIAL ASSISTANT IN INFORMATION TECHNOLOGY (SAIT), T.E.B.-GHANDINAGAR - JANUARY’ 2001 – MAY’ 2002 Soliciting your favour for according and consideration to my application Page 7