Hire the Best Google Protocol Buffers Developers

I’m a Software/AI & VPS Engineer, I can fix anything with zero mistakes n build everythings easily n fastest, i got unlimited Codex token, love to do things OpenClaw, Blockchain, Pipeline, flutter, flutterflow, build tools, Internal tools, Modules, Bot, PineScript, Mod, sys Linux n i can copy any site 100% match quick n easy n i strong in backend and full-stack systems and build Web apps, Mobile Apps, Desktop Apps, Rust/Tauri, Electron, Browser Extension n trading system, n strong Web3 edge (EVM, Stellar & Solana). I turn ambiguous ideas into secure, reliable, human-centered products using TypeScript/JavaScript, React/Next.js, Node.js/Nest, Go, Python, Solidity, Rust (Anchor), and modern infra. I care about clean architecture, measurable impact, and great developer experience (DX) also so features ship fast and safe, also love building an Apps & AI things. for the security side, I bring pentest/audit mindset to every build: threat modeling, fuzzing & invariants, automated checks in CI, and clear, actionable reports. I also provide English technical translation/localization for whitepapers, docs, and UI strings. Languages: TypeScript/JavaScript, Vue, Go, Python, Solidity, Rust (Anchor), Php, Ruby, C & C++ Frontend: React, Next.js, Tailwind, Radix/shadcn, Vite, SSR/SSG/ISR, Flutter Backend: Node.js (Nest/Express/Fastify), Go (Gin/Fiber), GraphQL, REST, gRPC, WebSockets Web3: Solidity, Rust/Anchor, Hardhat, Foundry, OpenZeppelin, viem/wagmi, ethers.js, WalletConnect v2, Safe, The Graph, IPFS Testing: Jest/Vitest, Playwright, Supertest, Foundry (fuzz/invariants), Slither, Echidna Data: PostgreSQL, MySQL, SQLite, Prisma/TypeORM/Knex, Redis DevOps: Docker, GitHub Actions, basic K8s, AWS/GCP basics, Sentry, OpenTelemetry, Tenderly, OpenZeppelin Defender Security: OWASP ASVS/API, RBAC/ABAC, token design, key/secret rotation, rate limiting & anomaly detection, audit reports DeFi staking: with upgradeable proxies storage-safe upgrades, 0 criticals in audit NFT marketplace royalty splits, subgraph indexing, gas-optimized listings Solana program PDA-secured escrow with CPI, wallet-adapter UX, >95% test coverage Payments & off-chain settlement Webhooks + queues, idempotent APIs, chargeback handling Security engagement BOLA/IDOR class bugs identified; implemented header-precedence fixes & authZ binding

Individual with 27,000+ hours worked on Upwork with 100% JOB SUCCESS. My experiences: ✓ OOP and System Design; ✓ Theoretical knowledge and practical experience with design patterns; ✓ Asynchronous and multithreading development (TPL); ✓ Rest API design, architecture and implementation; ✓ 3rd party API integration using existing packages or from scratch; ✓ Microservices and monolith architectures; ✓ GIT (Azure DevOps, github, bitbucket), SVN and TFS version control systems; ✓ .NET / .NET Core C#; ✓ TypeScript; ✓ JavaScript (jQuery, linq.js, lodash, underscore, moment, HighCharts); ✓ CSS/LESS/SASS, Bootstrap, Bootswatch; ✓ XML, XSLT, Serialization/Deserialization (XML, Binary, JSON); ✓ ASP.NET Core; ✓ ASP.NET MVC / Web API; ✓ AngularJS 1.x, Angular 2-21; ✓ React (basic); ✓ Kendo UI (JS and ASP.NET MVC wrapper) and DevExtreme; ✓ Bootstrap, Bootswatch; ✓ SMS integration (Twilio, Plivo, SMSru); ✓ Payments integration (Authorize.Net, Chargify, Stripe, Hint, Paymentwall) ✓ Email integration (SendGrid, MailGun, Gmail, custom SMTP); ✓ Reports integration (PowerBI, LogiReports, Crystal Reports); ✓ Medical partners inegration: Hint, Redox, EazyScripts, AthenaHealth, PokitDok, RxNT; ✓ SignalR; ✓ Microsoft Azure (Azure SQL, Azure AD, MobileApp, WebApp, ApiApp, Azure Storage, EventHub, Stream Analytics, Application Insights and others); ✓ AWS (EC2, Load balancer, ECS, S3, DynamoDB, Redis); ✓ WCF and WebServices; ✓ Entity Framework (Full and Core) ✓ LINQ and Dynamic LINQ; ✓ Database architect and optimization including Microsoft SQL/T-SQL; ✓ Caching (Redis); ✓ Brokers: RabbitMQ, MSMQ, Kafka, Azure Service Bus ✓ .NET Desktop (WinForms, WPF: MVVM, MVP); ✓ .NET for MacOs; ✓ Telerik, DevExpress, ComponentOne frameworks for WinForms and WPF; About me: • 16+ years of professional experience in all stages of the SDLC (Software Development Life Cycle) involving studying of the user requirements, analyzing, designing, implementation, testing, deployment, documentation and maintaining of various stand-alone, intranet, client-server and web-based projects with exposure to diverse business domains including Retailing, Medical, Financial and Banking • 12+ years of non-stop experience of working remotely and locally with companies located in USA and Germany • 8+ years of non-stop UpWork experience • Strong skilled in .Net technologies • Experience in developing cross-platform applications • Experience in client / server web-technologies • Solid background in computer science • Ability to work well within tight deadlines and under pressure • Self-motivated • Good team player with excellent coorganizational and mentoring skills • Fluent level of English

Hi, I’m Qaisar a senior System & Cloud Engineer + Full-Stack Developer with 10+ years of hands-on experience helping businesses build, migrate, automate, and scale their technology with confidence. I work with startups and growing companies that want reliable systems, secure infrastructure, and software that actually works in production not fragile setups or demo-only solutions. 🔹 What I Do Best Cloud, IT & Systems Administration Google Workspace setup, administration & complex migrations (Workspace ↔ Workspace, cPanel/IMAP → Workspace, Google → Microsoft 365) Microsoft 365, Azure, Windows Server & Active Directory Email deliverability & security: SPF, DKIM, DMARC, MX, DNS VMware virtualization, server optimization & infrastructure planning Backup & disaster recovery with Veeam Firewalls & networking: pfSense, MikroTik, VPNs, VLANs, load balancing 👉 Result: Secure, downtime-free environments with clean migrations and zero data loss Full-Stack Development & AI Automation Build production-ready SaaS apps, dashboards & internal tools Automate manual workflows using AI & event-driven automation Integrate AI into real business systems (not experiments) Tech Stack Frontend & Backend: React, Node.js, TypeScript, Express AI & Automation: OpenAI API, LangChain, RAG pipelines, n8n, Agentic AI Databases: PostgreSQL, MySQL, MongoDB, Redis, Pinecone DevOps: Docker, CI/CD, cloud deployment & server management Integrations: REST/GraphQL APIs, Webhooks, CRMs, ERPs, Slack, MS Teams 👉 Result: Systems that save time, reduce tools, and scale cleanly ✅ What Clients Like About Working With Me Clear communication & honest timelines Strong planning before execution Deep technical knowledge across IT + software + cloud Long-term mindset systems built to grow, not break “Get it done” attitude with real ownership 🏢 About My Team I run Sysconnects, a small, focused team delivering cloud engineering, full-stack development, and AI-driven automation. When needed, I can scale quickly with experienced resources without sacrificing quality. If you need one person who understands infrastructure and software, I’m here to help.

I have extensive working experience in successfully registration in Twilio A2P 10DLC , Twilio text message marketing, Voice API, Bulk messaging, Twilio studio IVR Flows and ensuring businesses stay compliant while maximizing engagement. 𝐖𝐡𝐞𝐭𝐡𝐞𝐫 𝐲𝐨𝐮’𝐫𝐞 𝐮𝐬𝐢𝐧𝐠 𝐓𝐰𝐢𝐥𝐢𝐨, Aircall, 𝐆𝐨𝐇𝐢𝐠𝐡𝐋𝐞𝐯𝐞𝐥 (𝐆𝐇𝐋), 𝐉𝐮𝐬𝐭𝐂𝐚𝐥𝐥.𝐢𝐨, 𝐒𝐦𝐫𝐭𝐏𝐡𝐨𝐧𝐞.𝐢𝐨, 𝐑𝐢𝐧𝐠𝐂𝐞𝐧𝐭𝐫𝐚𝐥, 𝐆𝐨𝐜𝐨𝐧𝐧𝐞𝐜𝐭, 𝐨𝐫 𝐀𝐥𝐨𝐰𝐚𝐫𝐞, I streamline your SMS marketing strategy and make compliance seamless. 📌 What I Offer: ✅𝐀𝟐𝐏 𝟏𝟎𝐃𝐋𝐂 𝐑𝐞𝐠𝐢𝐬𝐭𝐫𝐚𝐭𝐢𝐨𝐧 & 𝐂𝐨𝐦𝐩𝐥𝐢𝐚𝐧𝐜𝐞 – I handle your TCR brand & campaign registration to prevent SMS filtering and ensure carrier approval. ✅ 𝗧𝗖𝗥 𝗔𝘂𝘁𝗵𝗲𝗻𝘁𝗶𝗰𝗮𝘁𝗶𝗼𝗻+ 𝗩𝗲𝗿𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝗔𝘀𝘀𝗶𝘀𝘁𝗮𝗻𝗰𝗲 – Get approved quickly with my step-by-step guidance. ✅ 𝗧𝗿𝗼𝘂𝗯𝗹𝗲𝘀𝗵𝗼𝗼𝘁𝗶𝗻𝗴 𝗦𝗠𝗦 𝗖𝗮𝗺𝗽𝗮𝗶𝗴𝗻 𝗥𝗲𝗷𝗲𝗰𝘁𝗶𝗼𝗻𝘀 – I resolve A2P 10DLC rejections and compliance issues. ✅𝗧𝘄𝗶𝗹𝗶𝗼, 𝗚𝗼𝗛𝗶𝗴𝗵𝗟𝗲𝘃𝗲𝗹 & 𝗘𝗻𝗴𝗮𝗴𝗲𝗕𝗮𝘆 𝗦𝗠𝗦 𝗦𝗲𝘁𝘂𝗽 – I integrate SMS marketing with your CRM and automation platforms. ✅ 𝐀𝐯𝐨𝐢𝐝𝐢𝐧𝐠 𝐒𝐌𝐒 𝐅𝐢𝐥𝐭𝐞𝐫𝐢𝐧𝐠 & 𝐌𝐞𝐬𝐬𝐚𝐠𝐞 𝐃𝐞𝐥𝐢𝐯𝐞𝐫𝐚𝐛𝐢𝐥𝐢𝐭𝐲 𝐈𝐬𝐬𝐮𝐞𝐬– I optimize messages to ensure high open and response rates. 📈 Results You Can Expect: ✔ Seamless A2P 10DLC registration with minimal delays. ✔ Increased SMS deliverability & engagement rates. ✔ A compliant and professional SMS marketing setup. ✔ Higher ROI from SMS campaigns. 💡 Bonus Services: ✅ Website Redesign for A2P Compliance – Optimize your website with opt-in forms, clear T&Cs, and a trust-building design. ✅ Custom Integrations & API Development – Enhance your SMS workflows with custom automation & API integrations. 🚀 Let’s Get Started! Facing A2P 10DLC or TCR compliance issues? Let’s fix them today! 📩 Click the "Send a Message" button, and let's get your SMS campaigns approved.

Computer professional with more than 9 years of experience in modern approaches for web, mobile and infrastructure development. Core skills: ✔ JavaScript(ES5, ES6, ES7), TypeScript, Angular(2-11), Ionic, NextJS ✔ Twilio SIP Trunking and Media Integration ✔ VAPI and ElevenLabs Voice Agents integration with Live Telephony Calls ✔ AWS SQS, SNS, EC2, Rabbit MQ, Web Sockets, Stripe, sFox, Algolia, PayCaddy ✔ MongoDB, PostreSQL ✔ Node.js, ExpressJS, NestJS ✔ ICE Servers, Media Servers ✔ WebRTC

Hi Guest, First of all, thanks for visiting our profile. I am doing freelancing since 2010 and my expertise on complete VoIP solution including Freeswitch, Asterisk, PJSip, Opensips and Kamailio. I just recently launched a company which is not offering only VoIP solution but Zeus in Web Development(PHP, WordPress etc), Mobile App Development(Android & iOS). We are a team of members having extensive knowledge of all the services we are offering. We have successfully completed many projects delivered competent results with 100% accuracy with lifetime free support. To keep in mind 100% availability, Our dedicated manager is always online to make sure our client will face no more difficult to ask any query at any time. Let me mentioned the technologies which are our core strength listed below: - Development of Linphone Mobile VoIP Diallers - Development of PJSIP Mobile VoIP Diallers - Installation, development, customization, and maintenance of Asterisk,FreeSwitch Switch,Kamalio and OpenSIPs Servers - Android app development - iOS app development - Flutter Cross Platform App Development - Electron App Development - Web application development - ReactJS and ReactNative development for web and mobile applications - Testing and bug fixing for existing applications Consulting for ongoing projects Project consulting for Android, iOS, ReactJS, Asterisk, FreeSwitch, OpenSIPs, Kamailio, ASTPP, RTPengine, MediaProxy, RTPproxy, FreePBX, and A2Billing Expertise in developing Flutter WebRTC applications Expertise in developing ReactNative WebRTC applications Our price is very reasonable which allows us to work with us. Please share your requirement today only with us to check our capabilities to take your experience on the next level. To name a few tools & technologies that I have worked on: • High-level languages: C++, Objective C, Java, Python, PHP • IDEs: Xcode, Android Studio, Eclipse • Version Control & CI: SVN, Git, Perforce, Bitbucket, Jenkins • DBMS: MS SQL, MySQL, Oracle, PostgreSQL, MongoDB • Frameworks: Django, Zend, Magento, Django REST • Management tools: VersionOne, Jira, Trac, MS Project, MS Visio, XMind, Bugzilla, Balsamiq • Amazon Web Services (AWS) - EC2, S3, SQS, SNS, RDS, CloudTrail, Cloudfront