👉Hi, I’m a Mobile App Developer with hands-on experience in React Native, Flutter, FlutterFlow, iOS, Android, Firebase, Supabase, Node.js, API integrations, and AI-enabled mobile app development. I help clients build, upgrade, fix, and launch mobile applications that need clean UI, stable backend connectivity, smooth app performance, and production-ready release support. I can work on new mobile apps as well as existing codebases that need upgrades, bug fixing, API integration, app store submission, or feature improvements. 🚀 My recent Upwork work includes: - Mobile App Upgrade Specialist - Worked on upgrading and improving an existing mobile app, handling app-level fixes, codebase updates, and production support. - Mobile App in React Native for Telematics - Built and supported a React Native mobile application for a telematics use case, including mobile flows, backend connectivity, and real-world app functionality. - Full Stack Mobile Developer for Mental Health App Helped turn an unstructured and detailed product vision into a complex, functional mental health application. The client rated the work 5.0 and highlighted collaboration, clear communication, quality, and professionalism. 🚀 I can help you with: - React Native mobile app development - Flutter mobile app development - FlutterFlow app development - iOS and Android app development - Hybrid mobile app development - Firebase and Supabase integration - Node.js backend integration - REST API integration - AI mobile app features - Claude/OpenAI-based app features - In app purchases - App upgrades and bug fixing - Website to mobile app conversion - App Store and Play Store release support - Healthcare, mental health, telematics, SaaS, and booking apps 👉 Clients usually hire me when they need someone who can take ownership of the app, understand the product flow, fix technical issues, and deliver stable mobile features without unnecessary delays. I focus on clear communication, clean implementation, and practical solutions that are easy to maintain. 📩 If you need a reliable mobile app developer for React Native, Flutter, AI mobile features, Firebase, Supabase, API integrations, or app upgrades, I can help you build and improve your mobile product.

Detrás de cada proyecto que avanza, hay alguien que sabe comunicarlo bien. Soy Jailenne, Asistente Virtual en Colombia. Tengo formación administrativa de 8 años en entornos corporativos y estoy a punto de graduarme en Psicología. Actualmente desarrollo un proyecto personal en el área de Inteligencia Emocional y me especializo en lo que genuinamente hago bien: comunicarme con claridad, organizar ideas y convertirlas en algo visual y útil. No soy experta en todo. Soy muy buena en tres cosas: ✦Diseño en canva: Creo contenido visual claro y ordenado. Presentaciones, guías, contenido para redes sociales y propuestas que realmente comunican lo que necesitan decir. ✦Brindo soporte administrativo y organizacion: Archivos, datos, correos, seguimientos. El tipo de trabajo que mantiene todo lo demás funcionando, hecho con atención y sin necesidad de recordatorios. ✦Comunico y redacto: Esto es lo que más natural me sale. Ayudo a poner ideas en palabras, estructurar mensajes y crear documentos que la gente realmente entiende, además de mantener excelente comunicación con clientes. Soy nueva en Upwork. Lo que no es nuevo es mi forma de trabajar. Envíame un mensaje y cuéntame sobre tu proyecto. Me encantaría saber más sobre lo que estás construyendo.

Top Rated · 100% Job Success · 8 jobs · 711 hours · $20K+ delivered · 5-star streak 5 production AI SaaS shipped. 44 database migrations. 24 Claude agents running in production. 19 cron jobs running 24/7. Zero templates. I'm an AI Systems Engineer specializing in Claude and Codex. I build production AI agents, automations, and AI-coded SaaS — each one custom-engineered for the business that pays for it. No two builds are the same, because no two operations are the same. WHAT I BUILD - AI agents (WhatsApp, web chat, voice) with custom RAG, memory, tool use, and brand-voice consistency; - AI automations in n8n + custom Node/TypeScript where workflows hit their ceiling; - AI-coded SaaS MVPs — Next.js + Supabase + Stripe + Claude/OpenAI, production-ready in 4-6 weeks WHO I'M FOR - Founders shipping an AI product who got burned by a template-stacker and need someone who actually engineers; - Agencies whose Bubble or n8n stack is hitting its ceiling under real user volume (I've migrated two. I can migrate yours.); - B2B operators who need AI integrated into revenue systems, not bolted on as a demo. WHO I'M NOT FOR - Buyers shopping on price — that's the template-stacker tier, and I'll tell you upfront; - "AI strategy" calls with no implementation budget; - Projects under $1,500 — the economics don't work for custom-engineered work below that; THE STACK TypeScript · Next.js · n8n · Claude (Anthropic) · OpenAI · Supabase · PostgreSQL · pgvector · Stripe · Evolution API · Apify · Inngest · Modal WHY "ENGINEERED, NOT ASSEMBLED" Most "AI automation experts" wire 5 n8n nodes together and call it a system. That works for prototypes. It breaks for revenue. I engineer the architecture FIRST — error handling, retries, observability, edge cases, multi-tenancy, security — then build. The result is something you can hand to another engineer or scale 10x without rebuilding. The 3 portfolio projects below are production systems running today: - WhatsApp AI therapy SaaS: full Stripe lifecycle, custom RAG over real source books, LGPD compliance, ethics-eval CI gate; - Multi-tenant B2B cold-outreach platform: 207 n8n nodes across 15 workflows, 9 cron jobs, Claude reply drafting with prompt caching, ~5,000 verified emails/month per tenant - Bubble → Next.js rebuild for an active client: 44 migrations, 20 Claude agents, 185 users migrated, full multi-tenant RLS. THE BACKGROUND (and why the rate keeps going up) Mechanical engineer → 3 years as Tech Lead at a Bubble agency → AI Systems Engineer. On Upwork, I started at $11/hr in mid-2024. Today I'm at $55/hr. Every step up was earned from a client who paid the previous tier: $11 → $15 → $20 → $22 → $30 → $40 → $55 The work that earned each raise is on this profile. Read the reviews. HOW I WORK 1. You send 3 lines: goal, deadline, budget range 2. We do a free 20-min discovery call. I tell you straight if I'm the right fit. If I'm not, I'll refer someone who is. 3. Fixed scope or hourly with daily updates — your call 4. Clean handoff: code + docs + Loom walkthrough 5. 14 days post-launch support included CURRENT AVAILABILITY Taking 2 new builds per month. Currently booking ~3 weeks out. Send me 3 lines — goal, deadline, budget range. First 20-min call is on me. Even if we don't end up working together, you'll leave with an architectural opinion worth more than the 20 minutes.

I lead growth strategies for financial and personal brands. My approach: understand cultural insights, coordinate multidisciplinary teams, execute integrated strategies. I've scaled revenue +659%, customer acquisition +568%, and audience +107% in recent projects. Specialized in strategic thinking, not tactical execution. I work with companies that need real growth, not vanity metrics.

I hold a Bachelor's degree in Computer Engineering from the University of Las Palmas de Gran Canaria and have a passion for developing innovative software projects. During my final years at university and over 5 years as a developer, I specialized in mobile software development using React-Native. However, in response to the local job market demands, I have spent the last 10 years, particularly the last 7, honing my skills in web development with a focus on WordPress and Prestashop, developing dozens of projects. Currently, I am a partner and developer at 21ninjas S.L., a leading digital design, development, and marketing company based in the Canary Islands. On Upwork, I am looking to offer my extensive expertise in WordPress and Prestashop development to help clients create robust, user-friendly websites that meet their business needs. If you're looking for a dedicated professional to bring your web project to life with WordPress or Prestashop, I would be thrilled to collaborate with you.

I am a BS Psychology graduate from Bahria University Islamabad with a CGPA of 3.45/4.00 and supervised practical experience in clinical psychology, rehabilitation, autism support, behavioral management, and clinical documentation. My experience includes working in supervised clinical and educational settings where I developed skills in case history documentation, psychosocial observation, behavioral observation, progress reporting, clinical note-taking, therapeutic communication, and professional client support. I can assist clients with: • Psychology research and academic research • Literature and information-based research • Psychology-related report writing and documentation • Case history and progress-report formatting • Behavioral observation and documentation • ABA and autism-support materials • Psychology educational content • Data entry and organization • Virtual assistance and administrative support I am detail-oriented, organized, empathetic, and committed to producing clear and professional work. My supervised experience at a drug rehabilitation center, psychology and autism training center, and school environment has strengthened my ability to handle sensitive information, communicate professionally, and follow structured instructions. I am available for both one-time projects and long-term remote collaboration and I always aim to deliver accurate, well-organized work on time.

I am a skilled translator, transcriber, and content writer with experience in delivering high-quality language services. I provide accurate translations, precise transcriptions, and engaging content tailored to your needs. Whether you need document translation, audio/video transcription, or well-researched articles and blog posts, I ensure timely and professional results. Let's work together to bring your ideas to life!

Hi there, Sapphire here. First off, thank you for stopping by. It's a big deal that someone "checks my profile". See this... "Your work is good tbh. You know how you meet freelancers and you know you can't afford them? That's me rn 😂" This is one of the testimonials from a client I recently worked with. I wrote a 10-day email nurturing sequence for his digital product funnel. It's what I do almost everyday. Write copies to help people sell their product. If I were to hire myself, my top reason for hiring 'me' would be my speedy delivery. However, more to that? It would be the quality of my work and the keen attention to detail. Copywriting requires very keen attention to details and unfortunately, not a lot of people can afford to pay attention to detail. Buy hey! I'm rich. I can afford to do that. (Pun intended)😉 Okay. Let's get serious. I'm a Marketing and Consumer Psychologist with 3+ years of experience. My ideal day involves studying why people buy and why they don't and trust me, this is not to toot my own horn but... I can sell anything with words. All I need is a ample time (usually ranges from a few hours or days) to perform a thorough and comprehensive research of your product, and I can guarantee that anyone who really needs it would buy it. So let's make a quick deal. If you currently are in need of; 1. A Funnel Copywriter; By funnels, I mean from the advertising copies, landing page copies, sales copies, down to the email nurturing sequence, I'd do that for you. I won't save you time, but I'd make you money, too. Good money.🤭 2. If you need long/short form website articles for your brand or company, I would do that for you. Engagements are borne from relatability and I thrive at that; creating relatable copies irrespective of the niche. 3. If you currently are in need of a contract-based Copywriter for short-term writing projects. I'd be a perfect fit for the job, too. Also, you can work with me using any of the projects listed on my profile. I look forward to working and earning from you. Have a great day.☺️

I am a detail-oriented digital marketing professional with three years of hands-on experience in content creation and strategic communication. I excel in crafting audience-focused campaigns that align with clear marketing objectives and leverage data insights to optimize performance. My expertise lies in utilizing emerging digital marketing tools and trends to enhance brand visibility and boost engagement. I thrive on transforming insights into actionable strategies that deliver sustainable results. Whether you need compelling content, effective storytelling, or strategic implementation, I am here to elevate your brand's presence in the digital landscape. Let's connect and explore how I can contribute to your project's success.

After 35+ interior design projects successfully completed across New York, Seattle, Los Angeles, Texas, Canada, Saudi Arabia, and beyond, I noticed something important: Your body decides whether a home feels ‘right’ long before your mind does. And what your body's looking for isn't beauty… it's safety, familiarity, and the feeling of belonging. Most design stops at beautiful. I start where it actually counts, which is how a space makes you feel. My name is Felicia, and I design for the feeling of relief of a home that truly feels like yours the moment you walk in. Here’s what some of my previous clients (all verified on Upwork) had to say about me: "Working with Felicia was an absolute pleasure. She took the time to truly understand my vision, asked thoughtful questions, and made the entire process feel collaborative from start to finish. Communication was always smooth, and she was warm, patient, and easy to work with. Even as my ideas evolved, she was able to turn them into beautiful, cohesive designs for our home office, toddler’s bedroom, and baby’s nursery. She also helped source products and offered practical solutions to make sure everything could realistically come to life. I’m so grateful for her creativity, professionalism, and guidance, and would highly recommend her to anyone looking for a designer who truly listens." Kris, Stay-at-Home Mother, Winnipeg, Canada Contemporary Scandinavian Home "Working with Felicia was a fantastic experience. She took the time to truly understand both the space and what I was hoping to achieve, then brought everything together with a unique design approach that exceeded all my expectations. Communication was clear and consistent throughout the project, the execution was seamless, and the final result was even better than I had imagined. She has an exceptional eye for design and made the entire process effortless." Abdullah, Business Owner, Qatar Modern Eclectic Home "Felicia was amazing! She was extremely patient, she went above and beyond for our requests and she has an excellent eye for design. She helped us redesign our living room, and every time we walk into our living room now, we're really happy with the results!" Jens, IT Professional, San Francisco, USA Mid-Century Modern Home "She truly listened to what I wanted, even the parts I couldn't articulate, and delivered a cozy, reading retreat that exceeded my expectations. The final design felt warm, cabin-like, and thoughtfully created, with beautiful wood details, ambient lighting, and inviting reading nooks." Jessica C., Airbnb Owner, Tennessee Cozy Cabin Reading Retreat ----- So, how do we design a home that feels like yours? It starts with one crucial question: When you walk into your dream home, what are the three feelings you want to feel? It sounds simple, but it's where everything real is hiding. It’s where your body resides. One client told me she wanted her space to feel delightful. We sat with that word for a while, and it slowly opened up…. what she actually meant was nostalgia. She was designing a cabin for people worn out by adulthood, and what she really wanted was for them to feel like kids again the moment they stepped inside! That single word, once we understood it, shaped the entire design. That's the part most design skips. I don't start with what you want your home to look like. I start with how you want it to feel, how you think, what drains you, what you quietly need your space to do for you that it isn't doing now. Then I design backward from there. We'll explore this over a relaxed discovery call, usually 30 to 45 minutes. There's no intake form to fill out beforehand, no pressure for you to have everything figured out. I simply want to hear about your space and your life, and I'll likely ask more questions than you're expecting, because I genuinely want to understand what we're working with before we design anything. From there, the process moves naturally. I'll put together a moodboard and a clear design direction, then move into a full layout and 3D renderings, so you can see and feel the space before a single thing is purchased. Once it feels right to you, I handle the sourcing and product selection, and I stay with you through implementation so the process never feels like something you're navigating alone. If you've been living in a home that looks fine but has never quite felt like yours, that's exactly the conversation I'd love to have with you. Send me a message and let's set up a discovery call. Talk soon, Felicia TL;DR: I design homes your body trusts before your mind even understands why, rooted in safety, familiarity, and belonging (not just beauty). 35+ projects successfully completed across the US and beyond, all 5-star reviews on Upwork. Send me a message and let's design a home that finally feels like yours.