Hire the Best Amazon S3 Developers in California

📣 FREE technical consultation (details below) 🐻 Proud UC Berkeley graduate (Applied Mathematics & Economics) and an entrepreneurial, reliable full-stack software developer with broad expertise across modern technologies (listed below). 💪💪💪 With experience as: • Full-Stack Team Lead at Camping World, a publicly traded company • Lead Technical Teaching Assistant at Hack Reactor, a leading software engineering bootcamp • Founder of Atini Studio, a high-performance software development agency With years of experience working with clients and leading engineering teams, I prioritize accountability, clear communication, and efficient execution. 🌈🌈🌈 I’m the founder of Atini Studio, a vibrant software development agency and a team I like to call software doctors: highly skilled engineers and creative UI/UX designers who diagnose, fix, and elevate digital products. ⌨️⌨️⌨️ What I help clients with: 📌 MVP development for startups 📌 Full-stack web applications 📌 Cross-platform mobile apps 📌 AI-powered features & integrations 📌 Clean implementation from Figma to production 📌 API integrations (Stripe, OpenAI, Google, Zoom, etc.) 📌 Performance optimization 📌 Technical architecture planning 📌 Product roadmap & scaling strategy We also leverage AI internally to accelerate development workflows and improve efficiency, so you get faster delivery without sacrificing quality. 🧩 Complimentary Technical Consultation Not sure how to move forward with your product? I can help you clarify: • The right tech stack • MVP scope • Timeline and budget expectations • System architecture decisions • Whether your current product is built correctly I offer a complimentary strategy session to help you create a clear and practical execution plan. 💻 Tech Stack: • Front End JavaScript | TypeScript | React | Next.js | React-Native | Angular | Vue.js | Tailwind CSS • Back End Node.js | NestJS | Python | Django | PostgreSQL | MongoDB | MySQL | ORM | GraphQL • API Integrations ChatGPT / OpenAI | Stripe | Google | Zoom | and more... • DevOps Amazon Web Services (AWS) | Firebase/GCP(Google Cloud Platform) | Azure | Docker • Testing Jest | Mocha | TDD • Developer Tools Git | npm | Webpack | Babel | Agile Methodology | Nginx • Design Adobe XD | Figma

As a CISSP-certified Information Security Manager with deep DevOps and DevSecOps experience, I help organizations secure their systems without slowing delivery. I combine strategic security leadership with hands-on technical execution across cloud infrastructure, CI/CD pipelines, and modern application stacks. My approach bridges security, engineering, and operations, ensuring security is built into how teams design, deploy, and operate systems—not bolted on later. SERVICES OFFERED Security Assessments & Risk Management • Conduct in-depth security assessments, threat modeling, and risk analyses • Identify vulnerabilities across cloud infrastructure, applications, CI/CD pipelines, and networks • Prioritize remediation aligned with real business and engineering impact DevSecOps & Secure SDLC • Integrate security into CI/CD pipelines (GitHub Actions, GitLab CI, etc.) • Implement automated controls for SAST, DAST, dependency scanning, secrets management, and IaC security • Define and operationalize secure SDLC practices without reducing developer velocity Cybersecurity & Cloud Security Strategy • Design and implement programs aligned with ISO 27001, SOC 2, PCI-DSS, and NIST • Secure AWS, Azure, and GCP using least privilege, logging, monitoring, and defense-in-depth • Build scalable architectures that support growth Incident Response & Operational Security • Lead and support incident response and breach handling • Coordinate containment, recovery, and root-cause analysis • Improve logging, alerting, and detection Compliance & Audit Readiness • Prepare organizations for SOC 2, ISO 27001, HIPAA, PCI-DSS, and GDPR • Translate compliance requirements into practical technical controls • Produce audit-ready documentation and evidence Endpoint, Network & Platform Security • Implement endpoint protection and device hardening • Design secure network architectures and zero-trust patterns • Improve identity and access management across cloud and SaaS Security Training & Engineering Enablement • Provide practical security training for engineering and DevOps teams • Run phishing simulations and awareness programs • Help teams understand why controls exist WHY WORK WITH ME • CISSP-certified with hands-on DevOps and cloud security experience • Practical, production-ready security controls • Experience with startups through enterprise environments • Direct, clear communication with no unnecessary complexity Let’s build a secure, scalable, and audit-ready environment that supports engineering teams and protects your business as it grows.

🅷🅴🆈 👋 Hi! I’m a veteran full stack developer, mobile app developer, and team lead leading a senior long-term team capable of taking products from idea → launch → scale → maintenance. I’ve been in professional software development for 25+ years and mobile app development for 17+ years, delivering scalable iOS Development, Android App Development, Flutter, React Native, and backend-driven platforms across startups, SaaS products, enterprises, and high-growth mobile ecosystems. Clients usually come to us when they need more than just coding - they need a technical partner who understands architecture, business logic, scalability, monetization, and long-term product growth. As a mobile application developer, ios developer, android developer, flutter developer, and full stack developer, I specialize in building high-performance native and cross-platform mobile apps used by millions of users worldwide. I work with native iOS development using Swift, SwiftUI, UIKit, and Objective-C, native Android development with Kotlin and Java, as well as Flutter, React Native, and hybrid app development for scalable cross-platform delivery. Over the years, I’ve helped build 700+ apps across fintech, healthcare, social networking, education, entertainment, e-commerce, IoT, and enterprise SaaS. My experience covers the full mobile app development lifecycle - system architecture, UI/UX implementation, backend development, API Integration, DevOps, deployment, scaling, optimization, and long-term product evolution. 🏆 Why Clients Choose Me ✔️ 25+ years as a full stack developer and software architect
 ✔️ 17+ years in mobile app development
 ✔️ 700+ mobile apps delivered across iOS, Android, Flutter & React Native
 ✔️ Expertise in native app development, hybrid app development, and scalable backend systems
 ✔️ Reduced crash rates by up to 70% and improved app performance by 50% on production apps
 ✔️ Built mobile platforms used by 5M+ users worldwide
 ✔️ Strong experience with Mobile App Improvement, Mobile App Bug Fix, and modernization projects
 ✔️ Long-term experience with startups, SaaS companies, enterprises, and Fortune 500 clients
 ✔️ Full-cycle delivery: architecture → development → deployment → scaling → support 📱 Native iOS & Android Development • Native iOS Development with Swift, SwiftUI, UIKit, Combine, Objective-C • Native Android App Development with Kotlin, Java, Jetpack Compose • Smartphone app optimization for performance, UX, and scalability • Clean Architecture, MVVM, VIPER, modular app structures • Device integrations: BLE, GPS, biometrics, camera, sensors, HealthKit, Google Fit • App Store & Google Play deployment pipelines • Multi-language apps with localization and accessibility support • Advanced performance optimization and memory management 🔁 Cross-Platform & Hybrid App Development • Flutter developer expertise for scalable cross-platform products • React Native development with custom native module integrations • Kotlin Multiplatform Mobile (KMM/KMP) • Shared business logic across iOS and Android • Adaptive UI systems and responsive mobile layouts • Cross-platform architectures reducing development time by 40–60% 🔧 Backend, API Integration & Infrastructure • REST API and GraphQL API Integration • Firebase, Node.js, PHP, and scalable backend services • Authentication systems, caching, offline sync, token management • SQLite, Room, Realm, Core Data • Push notifications: FCM, APNS, OneSignal • Real-time chat, geolocation systems, dashboards, and live data platforms • Backend-connected mobile ecosystems with scalable cloud infrastructure ⚙️ DevOps, CI/CD & Delivery • Fastlane, GitHub Actions, Bitrise, Firebase App Distribution • Automated testing and deployment pipelines • Beta testing, crash analytics, staged rollouts • CI/CD optimization for faster and safer release cycles • AWS and scalable cloud deployment workflows 📊 Analytics & Monetization • Firebase Analytics, Mixpanel, Amplitude, Google Analytics • In-app purchases, subscriptions, AdMob, Facebook Ads • Retention optimization and funnel analytics • Data-driven product iteration and growth optimization 🔌 Advanced SDK & Hardware Integrations • AVFoundation, CameraX, Core Bluetooth, Core Motion • Stripe, Twilio, Agora, Sendbird, Mapbox, OpenCV • IoT dashboards, BLE integrations, voice/video systems • Camera-heavy and sensor-based mobile applications 🌍 Industries Served • Fintech & Banking • Healthcare & Fitness • E-commerce & Retail • Smart Home & IoT • Education & E-learning • Social Networking • Travel & Hospitality • Entertainment & Media • SaaS & Enterprise Platforms ✅ Let’s Build a Mobile Product That Scales!

Senior WordPress Developer. Reliable and responsive. Result-oriented work. On time. "Top Rated Plus" Upwork premium freelancer, member of an Upwork PRO group. 14+ years skill in full-stack web site development (prototype, graphic design, front-end, back-end, SEO). Back end experience: PHP (WordPress, Laravel), C# (ASP .NET MVC, Web API, Entity Framework, Orchard, Kooboo, Umbraco). Front end experience: HTML5 / CSS3, SASS, LESS, Bootstrap 5, Html5 animation, JS, jQuery, AJAX, Json, Rest API, Angular 1-2-4, React.js, Vue.js, Node.js, Three.js. Other experience: Windows/Unix Server administration, Git, Azure, AWS and cloud solutions. In terms of WordPress can provide: ✔️ custom theme design or theme/template modification; ✔️ responsive HTML (will pass Google mobile-friendly test, work on any device and OS); ✔️ retina display support; ✔️ HTML5 animation if needed; ✔️ WordPress/Woo back end; ✔️ WordPress multisite and membership, BuddyPress, bbPress; ✔️ custom plugin development; ✔️ 3rd-party services and payment systems API integration; ✔️ SEO, make AMP compliant, setup CDN (Cloudflare); ✔️ support; ✔️ warranty. Great experience with: ✔️ e-commerce; ✔️ payment systems integration (PP, Stripe, Authorize.net and similar); ✔️ Google Maps API (custom design, clusters, routing, radius, speed/time/distances calculation, etc.); ✔️ responsive CRM and dashboards, high-traffic web-projects; ✔️ experience with Microsoft Power BI. Keep the warranty, always available, fast response and turnaround. === TAGS === WordPress Developer ; WordPress expert ; Fullstack developer.

I'm a highly skilled Top Rated Plus senior sofware and infrastructure engineer, specializing on Python and Typescript. I have extensive experience in: - Serverless infrastructure design and development utilizing variety of AWS services like: Lambda, DynamoDB, SQS, Step Functions, Batch - High-load infrastructure design: recently deployed Batch processing for AI model allow it to server thousands parallel requests with help of AWS Batch and AWS StepFunctions - DevOps: Infrastructure as code, AWS CDK, Serverless framework, Terraform, setting up CI/CD - Python and Typescript programming Technologies I’m working with: Serverless Framework, Cloudformation, AWS Lambda, DynamoDB, API Gateway, AWS Cognito, AWS Batch processing, Python, TypeScript, Node.js, Dart, Flutter, React

TLDR; I’m familiar with most AWS products and DevOps engineering. I work alone and might be able to assist with issues from workloads running inside AWS. Please read on for more details. ——— I’m Lam, a full-stack AWS Cloud Engineer/Solutions Architect/DevOps with 8 years of experience working with AWS platform. My expertise includes managing, troubleshooting, building, and migrating AWS cloud environments, including EC2 Linux servers, RDS databases, DNS transfer, and hosting. I am also skilled in auditing AWS environments for best practices and the AWS well-architected framework, and have assisted clients in preparing for SOC2, PCI, and HIPAA compliance. I am dedicated to helping clients optimize costs, ensure scalability, improve reliability, increase performance efficiency, enhance security, and achieve operational excellence. * AWS skills: - Onboard new projects onto AWS. - Migrate workloads from other cloud providers or on-premises to AWS. - Setup new AWS accounts and Organizations from scratch. - Design and configure Control Tower/Landing Zone with AWS Organization on enterprise scale. - Organizing AWS multi-account environment using recommended account strategies. - Expertise in designing and implementing scalable, reliable, and fault-tolerant systems on AWS. - Ability to choose the best AWS service for specific data, compute, database, or security needs. - Familiarity with AWS best practices in architecture and well-architected framework. - Proficiency in estimating AWS costs and finding ways to control them. * DevOps skills: - Proficiency in automating the build and deployment of applications from Git repositories to AWS using various services such as EC2, Lambda, ECS, EKS, Elastic BeanStalk, S3, and other common services. - Experience in developing automation scripts using Bash, and Python for Linux infrastructure. - Skilled in creating Shell/Chef code to automate server builds, OS patches, and application deployments to various environments. - Ability to design reliable infrastructures for IT products using the infrastructure-as-code concept with CloudFormation, Terraform, Pulumi, and AWS CDK, whether they are being migrated from on-premises or developed on the AWS platform. - Experience in implementing custom monitoring and integrating monitoring methods into deployment processes to create self-healing solutions on Linux EC2 instances. - Expertise in managing multiple AWS accounts, enforcing network security, managing user/group permissions, optimizing service performance, and controlling costs. * Common jobs that I have done: - Deploy new AWS Organizations with Control Tower / Landing Zone with guardrails. - Organize multiple accounts into Organizational Units per AWS best practices. - Configure SSO authentication for AWS users in multi-account environments using third party Identity Providers. - Deploy security measures and toolings to detect and prevent security issues in AWS (GuardDuty, Config, Detective, Security Hub, etc.) - Introduce startups and individuals to the benefits of AWS. - Resolve compliance issues like SOC2. - Experience in containerizing native applications such as Django, .NetCore, Nodejs, and Java to run on AWS ECS, including one-step builds and deployments using CICD tools like Jenkins, AWS CodePipeline/CodeBuild/CodeDeploy/CodeCommit. - Skilled in troubleshooting VPC/networking issues, including communication between AWS resources such as Lambda and private RDS/ElastiCache/EC2. - Expertise in Cloud security using tools such as IAM, VPC, Security Groups, S3 ACL, WAF, GuardDuty, and CloudTrail. - Experience in setting up serverless stacks using Lambda, DynamoDB, S3, and CloudFront. - Ability to review proposed or existing AWS architecture for factors such as security, cost-optimization, HA, backup, and performance. - Skilled in setting up secure access between on-premises and private subnets in VPC using tools like openVPN and SSH tunnel. - Proficiency in creating CloudFormation templates for quick replication of AWS stacks, including for disaster recovery and deployment to multiple regions, as well as for easily creating and removing resources. I'm also holding all associate and professional AWS certifications: - AWS Solutions Architect - Professional - AWS DevOps Engineer - Professional - AWS Security Specialty - AWS SysOps Administrator - AWS Developer Please also take a look at my past projects and customer reviews for extra details. --- If you need assistance with quick fixes, have any questions about your AWS environment, or have an interesting project you'd like to discuss, please don't hesitate to reach out to me.