Hire the Best Amazon DynamoDB Developers

If your AWS bill keeps climbing, production breaks under load, or a compliance deadline is getting close - the problem is rarely just AWS. It’s the architecture. I step into fragile systems and fix both: cloud infrastructure, and the application design running on it. Because even perfect AWS setup cannot save software that wasn’t designed to scale, isolate failures, or handle real production traffic. Most teams I work with are stuck in one of these situations: - AWS costs rising every month with no clear reason - Systems that pass tests but fail under real traffic - Compliance pressure from regulators or auditors - Constant firefighting instead of controlled releases Hiring more engineers or adding more monitoring increases complexity. I simplify the architecture - both infrastructure and code-level design - so the problems stop repeating. Recent outcomes: - Avoided a $5M federal penalty by delivering a critical federal platform before deadline, focusing only on what was required for compliant launch - Cut hosting costs from $96K to $14K per year by eliminating architectural waste across infrastructure and services - Designed and delivered a FedNow-ready, Federal Reserve-compliant real-time payments system scaling to 60,000 transactions per second using horizontally scaled services built specifically for cloud behavior What changes after I’m done: - Infrastructure and software designed to scale together - Predictable AWS costs - Systems that stay stable under load - Clear documentation and runbooks - A team that can operate it independently I build boring, predictable systems on purpose. Boring systems survive audits, scale events, and 3am incidents. If you’re dealing with cost pressure, reliability issues, or compliance risk, send me your biggest concern. I’ll tell you exactly what I would fix first and whether it’s worth doing. If it’s not a fit, I’ll say so.

I've spent 10+ years building scalable systems for startups and enterprise platforms used by millions of users. As a CTO, Engineering Manager, and hands-on architect, I focus on building reliable products that align with real business goals. Some of the platforms I've helped build: * Led engineering at PrepLadder (Unacademy), scaling the platform to 2M+ users with AWS microservices, DRM-protected video streaming, and personalized learning systems * Co-founded Enciser (IoT & energy management), where I designed a serverless AWS architecture for real-time device tracking with mobile apps on iOS and Android * Built infrastructure and backend systems for companies like Zucora, TruckBook, Emerald Planet, and Kryptet using GoLang, Kubernetes, Docker, Redis, Cassandra, and cloud-native architecture * Designed and deployed scalable cloud systems across 50+ live projects Core technologies I work with: Backend & Frontend: Python, Node.js, Go, React, React Native, Next.js, Django, Flask Databases: PostgreSQL, MySQL, MongoDB, DynamoDB, Cassandra, Redis, ScyllaDB Cloud & DevOps: AWS, Docker, Kubernetes, Terraform, Jenkins, GitHub Actions, Ansible Integrations: Stripe, Twilio, OpenAI, Firebase, Shopify, Slack, SendGrid, Google Maps, Zendesk, and more What I’m especially good at: * Building scalable backend architecture * Real-time systems using WebSockets, MQTT, and event-driven pipelines * Cloud infrastructure and DevOps optimization * AI & LLM integrations * Leading engineering teams and shipping production-ready systems What working with me looks like: I believe in clear communication, clean architecture, and long-term maintainability. I stay involved throughout the project, document technical decisions properly, and focus on building systems that are reliable, scalable, and easy to maintain. I've worked with teams across Canada, Australia, Sweden, and India, and I’m comfortable leading both async and collaborative workflows. If you're building a product that needs to scale reliably, let’s connect. ramansaini.in

Get $100 AWS Credit + a complimentary, No-Strings-Attached AWS Cloud Assessment. ⭐⭐⭐⭐⭐ "Rarely have I worked with someone as skilled and thorough as Carlos is. Setting up my team on git, configuring our AWS servers to be safe, scalable, and fast, working with my developers to optimize code, being a good person". James Rector, UPWORK 100+ 5-star projects, I'm one of highest-rated and highest-earning AWS freelancer on UPWORK. I have been helping SaaS businesses to build scalable, secure, highly available and high-performing environments on AWS following DevOps/Dev Ops best practices. Here is what I can help you with: ✅ Review of your AWS current architecture performance, security and costs ✅ Architecture of new AWS infrastructure and Data Pipelines ✅ Migrations to AWS, AWS Cost Reduction, Database Optimisations, DevOps Engineer ✅ Managed Services SLA Problems that I solve: ⚡️ Performance At Scale: I build and deploy industry-tested and proven infrastructure code that ensures your application runs and performs fast without compromising security. ⚡️ Cost Optimisation: My infrastructure architecture enables the efficient use of resources and can help you save up to 90% in your AWS costs ⚡️ Security & Compliance: I can help you Scale and innovate quicker while building a solid foundation that will help you maintain a secure, compliant environment. ⚡️ Training & DevOps. I can help you increase your team's technology adoption while automating your DevOps/ Dev Ops processes. Technologies that I adopt and I'm an expert at: ➡️. AWS services such as s EC2, ECS, EKS (Kubernetes), S3, RDS, Step Functions, Lambda, AWS Gateway API, DynamoDB, Beanstalk, Elasticache, SNS, SES, IAM, ControlTower, WAF, Shield, Cloudformation, Cloudfront, CloudWatch, VPC, Route 53, Certificate Manager and others. ➡️. Supporting services such as CDK, Terraform, Rancher, ISTIO, Prometheus, Grafana, Teleport, Papertrail, Graylog, New Relic, Dynatrace, DataDog, Kafka, NEO4J and Spot.io. ➡️. Strong CI/CD DevOps engineering using GitHub/BitBucket Pipelines, CircleCI, ARGOCD. Industries: - FinTech - Media - Ecomm - and more! Here are some of the case studies of the clients I have helped with: 1. MONETRACK - Deploying a client stack in minutes on AWS instead of weeks Industry: Finance Problem: An unreliable process that caused constant frustration and delays. Process: Each deployment would take days to weeks to be set up, requiring between 5-6 people. Results: They now deploy a client stack in minutes instead of weeks using AWS EKS and a customised CI/CD process. In addition, I have: · Improved deployment time from weeks to minutes. · 80% reduction in costs per deployment. · Secure alignment with their client's compliance requirements. 2. Tourism Media - Great flexibility, deploying applications faster and secure on AWS Industry: Media Problem: With no CI/CD integration across all deploys, the job to integrate each stack was inconsistent and pruned to errors. Process: Deployment was not consistent across the board; they were also not resource-friendly Result: They can now push out a consistent deployment process across the company while being quickly adopted by their teams. In addition, I also have: · Improved deployment time by 60% · 70% costs reduction in EC2 instances · Greater scalability and reliability than their Legacy infrastructure. 3. Value-Ad - Scale 10X more on AWS with great stability and without the extra cost. Industry: Finance Problem: An infrastructure that could not scale securely and effectively was harming their client base. Solution: Deploy a new AWS EKS (Kubernetes) environment that is scalable, highly available, secure (PCI-DSS compliant) and cost optimised using AWS Well Architect Framework best practices. Result: They can now handle 10X more requests with excellent stability and without extra cost than their legacy infrastructure. In addition, I have added: · Greater scalability and reliability · Deployments are simplified and done in minutes instead of hours · 32% cheaper than its previous infrastructure Now a bit of myself: I'm a passionate professional with 25 years of experience in enabling business strategies through the practical application of technology architecture principles, practices, and tools. User-centric and solution-oriented, I have managed projects and teams across Australia, New Zealand, the USA, Brazil, the UK, Ukraine, Singapore, Vietnam and India over the past 14 years. A problem-solver in a broad range of technology stacks covering Architecture, Development, Integration, Data, Infrastructure, and Support. Seamless configuration and migration include fast deployment of critical and complex workloads on the cloud with hands-on expertise in AWS Services. Send me a message. I would love to discuss your project.

⭐ 10+ years of experience (Swift | Objective-C | SwiftUI) ⭐ Developed app using SwiftUI and Combine framework ⭐ Developed Finance app, Fitness app, Social media apps, Utility apps, E-commerce, Music app, etc. ⭐ Following MVVM, MVC coding pattern, ⭐ Maintaining code using Git, PRs, able to fix conflicts, etc. ⭐ Confortable using Jira, Trello, Asana, Linear, etc. for task management I can help you to develop High-Quality app for your business. My Expertise: - Migrate Projects -- Convert UIKit project to latest SwiftUI project -- Convert Objective-C project to latest Swift project -- Convert old Swift project to latest Swift Project - Maintain old Objective-C project and add more features over the time - Native iOS - Rest APIs Development using Python - Server-less Apps using AWS or Firebase SDKs - Version control using BitBucket, Git, GitLab. - Task management using Jira, Trello, Asana, GitLab - Extensive knowledge in object-oriented software development, MVC, MVVM, VIPER architecture, multithreading, networking, and memory management. - Universal links / Dynamic links: Firebase Deeplink, branch.io - AI API Integration: ChatGPT API usage as per the client requirements MY CLIENTS SAY: ⭐⭐⭐⭐⭐ "Dhaval understood exactly what I wanted and exceeded my expectations. Very friendly and great communication. He is highly knowledgeable in his field and goes out of his way to explain to customers the technical process of things. He is simply the best developer, and app quality is superb. Highly recommended. A++" ⭐⭐⭐⭐⭐ "Dhaval is a great developer, and he did everything i want excellently. He was always available and open to communication while we were working. I strongly suggest everyone work with him." ⭐⭐⭐⭐⭐ "Thanks Dhaval, much appreciated." I am following MVC or MVVM coding patterns throughout the application. Using best practices to fire Rest/SOAP API calls, parse JWT and maintain proper session using it. Store data into data models, properly handle each case of payment(In-App Purchase or 3rd Party SDK like Stripe, PayPal), and maintain consistency between app and server. As a full-stack Mobile application developer, I can develop APIs using the python language, and it will be hosted on Google Cloud Functions, and I can consume the Rest APIs in the mobile application. I have developed the following types of Application: ♔ Finance App ♔ Health App, which connect with Apple health, Manual health data entry, readings from health devices, etc. ♔ Cruise App which accessible only on Cruise ♔ Utility Apps like NFC, Barcode, or QRCode Read/Write ♔ Social media apps like Create Post, location-based users/post listing, making connections, In-App Purchase for a premium feature ♔ Chatting apps using Firebase Realtime or Firestore database, Signal-R, Socket.io ♔ Server-less apps using Firebase or AWS ♔ E-Commerce apps with location-based or filtered product listing, cart management, payment gateway integration like Pay_pal SDK, Stripe SDK For App Security, I am using the following things: ♔ JWT Token management ♔ Encode password or required data using AES256 or required Algorithm ♔ Store data sensitive data into Key Chain/ User Defaults To Store/Maintain Data throughout the App Life Cycle, I am using the following: ♔ Data Models - Store and maintain data into Data Models, Arrays, Dictionaries, etc. as per the requirement of the functionality ♔ CoreData - Store/Retrieve data ♔ SQLite - Store/Retrieve data To Develop a Server-less App, I am mainly using either Firebase or AWS Services like below: ♜ Google Firebase: ♘ Authentication - For user management like Signup, login, forgot password, etc. ♘ Realtime Database / Cloud Firestore - For storing custom data in non-relational tree and document database structure, respectively. ♘ Cloud Functions - For hosting functions that can be trigger based on events or create Rest APIs ♘ Cloud Messaging - For sending push notifications ♘ Crashlytics - To teach the crashes and solve it quickly ♘ AdMob - To integrate Google Ads ♜ AWS: ♘ Cognito - For user management like Signup, login, forgot password, etc. ♘ DynamoDB - For custom data storing in non-relational Document Database structure ♘ S3 Bucket - For storing files like images, video, etc. ♘ SNS - For sending push notifications ♘ Cloud Watch - For maintaining logs and trigger events ♘ Lambda - For writing functions that can be trigger based on a particular event I am managing my Source Code using the below Version Control systems: ♔ Git ♔ BitBucket Other Technical Expertise And Area Of Domain Field IOS | Android | Native App Development | UIKIT | SwiftUI | IAP | Subscription | App Improvements | Memory Management | Take Over Existing APP | Music App | E-commerce App | Social Media App

I help startups and SaaS teams run their applications reliably on AWS by taking full ownership of the cloud, deployment, and operational layer. Instead of hiring multiple specialists, you get one engineer responsible for making your system stable, scalable, secure, and cost-efficient in production. I design, build, deploy, and maintain AWS environments so your developers can focus on product features while the infrastructure runs smoothly. ═══════ What I can handle end-to-end ═══════ ➤ AWS infrastructure setup (VPC, networking, IAM, security, databases, compute) ➤ Scalable deployments using EC2, ECS, or serverless services ➤ CI/CD pipelines and automated release workflows ➤ Monitoring, logging, alerting, and incident stability ➤ Cost optimization and resource efficiency ➤ Backups, security hardening, and reliability best practices ➤ Targeted backend or automation fixes that require system-level understanding This covers the entire AWS and operations layer of a production system.

Overview: You have an AI product idea — or an existing product that needs AI built into its core. You need someone who won't just write code, but make the hard architectural decisions that determine whether your product scales or breaks at 10,000 users. That's what I do. I've shipped 5 AI-native products in the last 2 years, each running in production with real users today. Not prototypes. Not demos. Production systems handling real data, real money, and real compliance requirements. Recent results: → Built an AI conversation intelligence platform that analyzes calls across 19 dimensions in real-time — now processing hundreds of conversations daily for a US-based SaaS company → Delivered an AI medical education platform with 11 LLM-powered endpoints, integrating clinical evidence from randomized controlled trials — used by healthcare professionals for continuing education → Shipped an AI learning platform with 9 specialized AI pipelines — 500+ study hours saved for users within months of launch → Architected an AI-powered industrial support system with vector search and multi-tenant isolation — deployed across operator, technician, and admin roles for a European client What makes me different from other AI developers: Most developers bolt AI onto existing products as a feature. I architect systems where AI is a core capability — from database schema to user experience. Every project I deliver includes production infrastructure (CI/CD, monitoring, error tracking), not just application code. I also run a team at Growth Loops Technology, which means I can scale up when your project needs it — without you managing multiple freelancers. I'm the right fit if you need: → An AI-native product built end-to-end (backend, AI pipelines, deployment) → LLM integration done properly (structured output, RAG, multi-stage pipelines) → A senior architect who can own technical decisions and communicate clearly → Someone who ships on schedule and writes code that holds up in production Technical depth (for the engineers reading this): Backend: NestJS, Node.js, TypeScript, Python, FastAPI, Django AI/ML: GPT-4o, Claude, LangChain, LangSmith, Whisper, AssemblyAI Data: PostgreSQL, Redis, BullMQ, Pinecone, OpenSearch, Meilisearch Infra: Docker, GitHub Actions, AWS, Cloudflare R2, Sentry 15+ years of software engineering. Every project delivered with authentication, async job processing, multi-tier caching, and production monitoring baked in from day one.