Cloud Security & DevSecOps Engineer for teams running on AWS, Azure, GCP, BigQuery, ETL, and CI/CD. I help teams secure cloud infrastructure, data pipelines, and deployment workflows without slowing engineering down. That includes IAM, Entra ID, vulnerability assessment, security analysis, CI/CD hardening, DevSecOps, and information security work across the full environment. Most clients come to me when things already feel messy. Access is too open, cloud infrastructure has grown without clear security rules, CI/CD is moving fast without enough guardrails, and nobody is fully sure where the real risk is. That is exactly why they hire me. I do not just point out issues. I work on the actual infrastructure, access model, cloud setup, and delivery flow so your team can reduce risk, stay organized, and keep shipping with more confidence. 𝙎𝙚𝙧𝙫𝙞𝙘𝙚𝙨 𝙄 𝙊𝙛𝙛𝙚𝙧: 𝟭. Cloud Security Reviews: I review cloud infrastructure, identity, networking, permissions, workloads, and data flows to find real security gaps and give clear priorities. 𝟮. DevSecOps & CI/CD Security: I secure CI/CD workflows so teams can build, test, and deploy with better controls, fewer mistakes, and less production risk. 𝟯. IAM & Entra ID Hardening: I improve IAM, Entra ID, roles, permissions, least privilege, and access design so the right people get the right access without unnecessary exposure. 𝟰. Vulnerability Assessment: I run vulnerability assessment work, validate findings, remove noise, and help your team focus on what actually matters. 𝟱. Security Analysis: I break down risks in plain English so leadership, engineering, and operations can understand what is wrong, what matters most, and what to fix first. 𝟲. Cloud Infrastructure Security: I help secure infrastructure in AWS, Azure, and GCP, including compute, networking, storage, identity, and deployment patterns. 𝟳. Data Engineering & ETL Security: I support secure ETL flows, BigQuery environments, and data architecture decisions where access, movement, storage, and control of data matter. 𝟴. Information Security Support: I help teams improve their information security setup with practical controls, documentation, clearer ownership, and cleaner processes. 𝟵. Quality Assurance for Security Changes: After fixes are made, I verify that the changes actually work and that the environment is more secure, stable, and easier to manage. 𝙏𝙝𝙚 𝙠𝙞𝙣𝙙 𝙤𝙛 𝙬𝙤𝙧𝙠 𝙄 𝙝𝙚𝙡𝙥 𝙢𝙤𝙨𝙩 𝙬𝙞𝙩𝙝: 🔹 Securing AWS, Azure, and GCP environments without slowing down delivery 🔹 Hardening IAM, Entra ID, permissions, and access controls 🔹 Improving CI/CD security and building cleaner DevSecOps workflows 🔹 Running vulnerability assessment and turning findings into real fixes 🔹 Securing ETL pipelines, BigQuery environments, and data infrastructure 🔹 Helping engineering teams understand and reduce cloud security risk 🔹 Cleaning up weak infrastructure and making it easier to maintain over time 🔹 Supporting information security work with practical implementation, not theory 𝙄 𝙖𝙢 𝙚𝙭𝙥𝙚𝙧𝙩 𝙖𝙩: 𝟭. Cloud Security, CI/CD Security, CyberSecurity, Information Security, DevSecOps 𝟮. Azure, AWS, and GCP, Docker, Kubernetes 𝟯. Vulnerability Assessment, Cloud Infrastructure, Security Analysis 𝟰. Azure, AWS, and GCP, Docker, Python 𝟱. BigQuery, ETL, and Data Engineering 𝟲. IAM, Entra ID, SOC, SOC2, ICO Thanks for reading my bio, I am happy to help you, just send me a message and we can discus everything in more detail.

I build AI systems that hold up in production, and I've been an engineer for 18+ years, an engineering leader for most of the last decade. I co-founded a venture-backed SaaS platform, ran its engineering as VP for nine years, and helped raise over $20M. These days I work as a fractional CTO and hands-on AI engineer. I still write the code. Most of my recent work is AI agents and retrieval systems, specifically the parts that get hard once you leave the demo behind: holding latency and cost down, grounding answers in real data instead of letting the model guess, evaluating quality so you actually know when a change made things worse, and getting permissions right so the system never answers from a document the user was never allowed to see. Recent work I've built or architected: - A governed AI operating system for an enterprise retail and fashion brand, running entirely inside the client's own Google Cloud tenant. Sole delivery engineer: the full Terraform infrastructure (AlloyDB/pgvector, Cloud Run, IAM, Secret Manager, VPC Service Controls), a canonical data layer ingesting six external systems with PII masking at ingestion, a suite of Claude-powered agents behind a deterministic policy gate enforcing brand and commercial rules, a 50-case eval harness with per-run cost accounting, and a Next.js leadership app, all engineered for the client to own and operate after handover. - An AI-augmented delivery pipeline (spec-driven, agent-run against a ticket backlog) that shipped 200+ fixes and features in a single month with very little direct developer time. - Production AI agents with real cost management, not a prototype that quietly burns the budget. - A multi-agent, character-led knowledge assistant: distinct specialists, a routing layer, retrieval grounding, and guardrails, all behind one interface. - Enterprise RAG architecture: document-readiness assessment, hybrid retrieval and reranking, GraphRAG for relationship questions, adaptive routing, and evaluation gated in CI. Before AI ate my calendar I shipped plenty of other things: an LMS with SCORM, a website builder with a large user base, event booking, commerce, enterprise chat, TV apps, mobile games. EdTech and SaaS are home turf. Working with me, you get someone who'll architect the thing and then build it, who'll tell you when the simpler approach is the right one, and who measures whether the AI is working rather than trusting the vibes. Stack: TypeScript and JavaScript end to end. React, React Native, Next.js, Node, NestJS, Express, GraphQL, serverless. AWS (Solutions Architect certified) and GCP, Docker, EKS, Terraform. Postgres, MySQL, MongoDB, DynamoDB. Prisma, TypeORM, Apollo. Heavy on testing: Jest, RTL, Playwright, Cypress, full e2e suites. PMP on the delivery side. Open to fractional CTO, tech lead, and senior build engagements, large or small. Tell me what you're stuck on and I'll tell you straight whether and how I can help.

⭐️ Web Accessibility / Digital Accessibility / Document Accessibility ⭐️ ADA / WCAG 2.1 / WCAG 2.2 / EAA / Section 508 ⭐️ Get 50% of your investment with me back in tax credits...more below. Hi, I'm Will, and I help make accessibility accessible. I am an IAAP (International Association of Accessibility Professionals) and Trusted Tester certified Accessibility Consultant with myself having over 10 years of experience, and my team having over 30 years of experience providing full-service digital accessibility services. Having three siblings with disabilities, I learned from my personal experience that it wasn't that my siblings couldn't access the world, but it was that the world was made inaccessible to them. I have since dedicated my life to this work and specialize in helping organizations by providing customized digital accessibility solutions. I've worked with over 400 businesses to develop strategies for accessibility testing, remediation, and prevention. I will help not only ATTAIN compliance, but also help you MAINTAIN and SUSTAIN compliance. I can support you in one of two ways: 1️⃣ Work with me as an individual, where I can help you in all of the services mentioned below. 2️⃣ Work with my team where we can ramp up capacity in all the services mentioned below. I have a distinct niche in helping digital agencies (UI/UX, product and SaaS development, marketing, web development, app development, and even other accessibility companies) stand up and scale digital accessibility services for their end clients as a white label or named partner. Message me to learn more about how I can help your agency stand up your accessibility services efforts for your clients, help you respond to an RFP, or discuss how you can integrate me into your team. I will help you: ✅ Perform audits for your website or app under Accessibility Standards: 🔹 WCAG (Conformance Levels: A, AA, AAA) 🔹 ADA - Section 508 of the Rehabilitation Act (US) 🔹 AODA (Canada) 🔹 EN 301 549 (EU) and European Accessibility Act (EAA) ✅ Create a customized roadmap and help remediate any pressing accessibility issues ✅ Perform assistive technology testing using NVDA, JAWS, VoiceOver, keyboard navigation, and Google TalkBack ✅ Build an accessible website from scratch ✅ Test and remediate documents (PDF, Forms, Word, Excel, PowerPoint) ✅ Create a VPAT (Voluntary Product Accessibility Template) Report ✅ Make your video, audio, & social media content accessible (captions, transcriptions, alt-tags) ✅ Train you and your team on accessibility for testing, marketing, and development Ask me about: 🔹 How I can get you 50% of your accessibility investment with me back 🔹 Our certified accessibility insurance policy I look forward to helping you reach your accessibility goals!

I'm a UX designer and web developer with 14 years of experience working with universities and corporations — now bringing that same level of craft and professionalism to startups, small businesses, and independent founders. I design with intention and build with care. My work spans responsive web development, mobile app development (iOS and Android), and UX/UI design — so I can take a product from concept to launch without handoff gaps slowing things down. For smaller teams and growing businesses, that kind of end-to-end ownership is often exactly what's needed. You bring the vision — I bring the skills to make it real. Whether you have a fully fleshed-out idea or just a strong sense of what you want to build, I'm here to execute on it. No need to translate your thinking into technical language — I'll meet you where you are and take it from there. Most recently, I independently designed, built, and shipped Camera Vault, a native mobile app available on both the App Store and Google Play — handling everything from UX and branding to release management on both platforms. Who I work best with: -Independent founders and startups moving from idea to launch -Small businesses that need a trusted design and dev partner, not an agency -Clients who value quality and want someone who takes ownership If you have a project that needs to get done right, I'd love to work with you.

Hi, I'm Xiuny! I'm a senior Full-Stack Software Engineer with over 4 years of experience leading complex projects from concept to launch. Whether you're a startup needing a rapid prototype or an established business building a scalable, high-performance system, I can help. I am your all-in-one technical partner. My expertise covers the full development lifecycle: Core Expertise: Full-Stack Web, Mobile App (iOS/Android), and Game Development. Key Technologies: C++, Java, JavaScript, React.js, and Node.js. Game Engines: Expert in Unreal Engine 5 (Blueprints & C++). Full Project Management: I manage the entire process, from architecture and prototyping to deployment and optimization. Clear Communication: I am committed to your success and will keep you updated every step of the way. I'm precise, efficient, and bring creative solutions to every project. Let's build your next big idea together. Send me a message!

I help companies fix and scale their CRM and revenue systems. Most teams don’t need more tools. They need Salesforce, HubSpot, and their internal systems to actually work together. For the past 15 plus years, I’ve been designing and building CRM ecosystems that connect: - Salesforce and HubSpot - Custom-built CRM platforms - NetSuite and financial systems - eCommerce and operational tools The result is a single, reliable system for pipeline visibility, marketing attribution, and revenue operations. What I Typically Fix - CRM pipeline data that sales teams don’t trust - Marketing attribution that doesn’t tie to revenue - Duplicate and inconsistent data across systems - Manual processes slowing down operations - Disconnected platforms (CRM, ERP, Marketing, Product) Core Expertise Salesforce - Sales Cloud, Service Cloud, Experience Cloud, CPQ / Revenue Cloud - Marketing Cloud and Account Engagement (Pardot) - Apex, Lightning Web Components, Flow automation - API integrations (REST / SOAP) - Data modeling, governance, and large data volume design HubSpot - Marketing, Sales, Service, CMS, and Operations Hub - Lead lifecycle design and automation - Marketing attribution and pipeline tracking - Salesforce and HubSpot integration architecture - Custom CRM Development (25+ Years) This is where I differentiate. I don’t just configure CRMs. I build them when needed. - .NET / C# enterprise applications - Node.js and React-based CRM platforms - Custom data models and workflow engines - API-first architecture for scalability NetSuite & Revenue Operations - NetSuite integration with Salesforce and HubSpot - Quote-to-cash and financial data synchronization - Order, billing, and revenue workflows - CRM ↔ ERP data ownership and governance Full-Stack Development (React Focus) - React applications connected to CRM systems - Backend services (Node.js, .NET, APIs) - Integration layers across CRM, ERP, and product systems - Scalable architecture for high-growth environments Integration & Architecture - I design systems, not just connections. - API-first architecture (REST, GraphQL, webhooks) - Event-driven integration patterns - Middleware and workflow orchestration - Cross-platform data governance and ownership rules Common platforms: Salesforce, HubSpot, NetSuite, Shopify, Stripe, DocuSign, Twilio, and internal systems AI Inside CRM I implement AI where it impacts operations: - Lead scoring and prioritization - CRM data enrichment - Automated workflows and decisioning - AI embedded inside Salesforce and HubSpot processes Experience Work delivered for companies including: - Bloomberg - Cargill - CoStar - Porsche - MIT - Humana - Across SaaS, healthcare, financial services, education, real estate, and eCommerce. How I Work I focus on architecture first. - Define system ownership (what lives where) - Fix data structure and pipeline logic - Build integrations that don’t break at scale - Deliver systems teams actually use Best Fit Projects - Salesforce architecture and complex integrations - HubSpot implementation and automation design - Revenue operations system design - CRM rebuilds or migrations - NetSuite ↔ CRM integration - Custom CRM or React-based platforms

Top Rated developer (100% Job Success) with 5+ years building fintech and payments systems. I specialize in Java (Spring Boot), TypeScript, Node.js, and React/React Native, with hands-on experience delivering production-grade financial applications for clients across Europe. Recent fintech work includes: building payment flows with Google Pay and card processing integrations, developing real-time transaction systems using WebSockets, architecting backend microservices for financial data processing, and delivering full-stack features in security-sensitive, compliance-aware environments. I understand fintech isn't just about code — it's about reliability, auditability, and regulatory constraints. I bring a structured approach to every engagement: clear communication, thorough documentation, and production-ready deliverables that hold up under real-world load. Tech stack: Java (Spring Boot), TypeScript, Node.js, React, React Native, PostgreSQL, REST APIs, WebSockets, microservices, Docker. Available for backend, full-stack, and API integration projects. I work well with both early-stage fintech startups and established financial services teams. Let's build something solid.

I’m an Electrical Engineer with a strong foundation in power electronics, enhanced by hands-on expertise in full-stack development, system simulation, and graphic design. My unique ability to combine technical precision with creative problem-solving enables me to deliver high-quality, customized solutions across a broad spectrum of engineering and software projects. My work spans embedded systems, IoT product development, and custom hardware design, where I specialize in building solutions using ESP32, STM32, and Nordic (nRF52) microcontrollers. I develop responsive, low-power firmware using FreeRTOS and Zephyr, and integrate real-time features like BLE communication, sensor interfacing, and OTA updates. On the UI side, I create elegant embedded interfaces using LVGL and design flows powered by SquareLine Studio, enabling rich user experiences even on constrained hardware. In parallel, I build modern web and mobile applications using tools like React, Node.js, and Electron, ensuring seamless cloud-to-device interaction. Whether it’s a smart wearable, a solar-powered monitoring device, or a cross-platform control dashboard, I bridge the gap between hardware, firmware, and software—delivering complete, production-ready systems from the ground up. My Core Expertise: 🌐 Embedded Systems & IoT Development 🌐 Design and deployment of custom IoT solutions using ESP32, STM32, and Nordic (nRF52) microcontrollers. Low-power optimization, BLE connectivity, and real-time data acquisition with FreeRTOS and Zephyr RTOS. Prototyping smart devices with integrated sensors, battery management, and OTA capabilities. UI/UX for embedded devices using LVGL, with design workflows in SquareLine Studio. From concept to working prototype, I bring devices to life—wirelessly and beautifully. 📲🔧 --- ⚡Power Electronics & Renewable Energy Systems ⚡ Design and analysis of inverters, converters, and power supplies. Simulation and optimization using MATLAB, Ansys, and PyroSim. Specialization in renewable energy systems, including solar power and energy storage solutions. Recent achievement: Awarded lab equipment for PCB design—because even engineers need shiny new tools to play with! 🛠️ --- 💻Full-Stack Development 💻 Development of dynamic, data-driven web platforms with seamless user experiences. Back-end: Proficient in Node.js, Express.js, PHP, and databases (MySQL, MongoDB, PostgreSQL). Front-end: Skilled in React, Angular, and Vue.js for responsive, user-friendly interfaces. Experience in building RESTful APIs and cross-platform applications using React Native and Electron. I make websites so smooth, they’re basically digital butter. 🧈 --- 🔍Simulation & Analysis 🔍 Electrical simulations, control system analysis, and optimization using MATLAB. Finite Element Analysis (FEA) with Ansys for reliability and efficiency of electrical components (transformers, motors, etc.). Fire and smoke simulations with PyroSim for safety and efficiency in industrial applications. If simulations were a movie, I’d be the director, producer, and special effects team. 🎬 --- 🎨Creative Design & Branding 🎨 Web design: Crafting visually appealing and functional websites. Branding: Designing logos, banners, packaging, and cohesive brand identities (color schemes, typography, imagery). App interface design: Balancing aesthetics and functionality for enhanced user experiences. Lighthearted note: I don’t just make things work; I make them look good while doing it. 💅 --- Why Collaborate With Me? Technical Excellence: A proven track record in delivering innovative solutions across multiple domains. Attention to Detail: Precision in design, development, and analysis to ensure optimal performance. Clear Communication: Transparent and consistent updates to keep projects aligned with your goals. Custom Solutions: Tailored approaches to meet your unique requirements, whether in power electronics, software development, or creative design. Bonus: I bring a positive attitude and a dash of humor to every project—because who says engineering can’t be fun? 😄 --- Let’s Work Together If you’re looking for a reliable partner to bring your ideas to life, I’d love to connect. Whether it’s designing a power electronics system, developing a custom web application, or creating a standout brand identity, I’m here to help. Let’s collaborate to achieve your goals and create something exceptional. --- Get in Touch Feel free to reach out to discuss your project or explore how we can work together. I look forward to hearing from you—let’s turn your vision into reality! 🚀

I’m Vinicius Assis Neves, a Senior Mobile and Web Developer from Brazil with extensive experience in cross-platform development, specializing in Flutter. Over the past several years, Flutter has been my core technology for building efficient, high-quality mobile applications. In addition to Flutter, I have strong experience in web development, Android development, and basic knowledge of iOS development. I am proud to be an Upwork Top Rated Freelancer, recognized for my outstanding performance and consistent success across both short- and long-term projects. My professional journey began as a mobile developer at Lemon Inteligência, where I started working with Flutter. Thorought, I also took on a part-time role on Upwork for an Australian company. Eventually, I transitioned to working mostly on Upwork, where I’ve since honed my skills in system architecture, mobile and web development, web scraping, security, and best coding practices. My skill set includes: • Mobile App Development (Flutter, Android) • Backend Development (Node.js, PHP, AWS) • Web Development (CakePHP, WordPress) • Database Management (MySQL, PostgreSQL) • Cloud Architecture (AWS services, including Lambda, API Gateway, and S3) Although Flutter development remains my primary focus, I am always eager to learn new technologies and continuously expand my skill set. I’ve had the privilege of working on a wide variety of projects, from mobile apps to complex web systems, and I’m confident that we can achieve great results together. Feel free to reach out anytime to discuss your project or ask questions about my experience. I’m excited to collaborate with you!

Senior UX/UI for live products where mistakes are expensive. Predictable shipping without management overhead or rework. 🟢 It’s a fit when: - You already have a live product, but UX complexity is starting to slow the team down - There are complex flows, data-heavy screens, and product constraints - Design decisions regularly require extra clarification for developers - You need someone who can get productive fast, without hand-holding - The product is in production, and mistakes are expensive or risky - You want to bring structure and consistency without a breaking everything 🟢 Production problems I’ve handled - Expanding a U.S. government system where UX mistakes were costly - Scaling a B2B platform across multiple growth stages as complexity increased - Rebuilding a data-heavy SaaS into a full V2 once further expansion became unsafe 🟢 What to expect: ownership, predictable delivery, and fewer decisions on your side. - Clear scope and deliverables agreed upfront - Regular async updates, no constant check-ins required - Working within existing product constraints - Dev-friendly, production-ready deliverables - Practical solutions without unnecessary complexity - Design decisions carried through to implementation - UX choices grounded in real flows, edge cases, and implementation 🟢 How engagement starts: We start with a short call to align on your product state, constraints, and what needs to be solved first. The goal is to quickly confirm whether this makes sense and define a low-risk next step. If there’s a fit, I’ll suggest a concrete starting point with a predictable scope.