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I am creating an online visa-appointment platform that removes fraud and black-market bookings through strong identity checks and a transparent slot-allocation engine. The core of the system is Supabase on the backend, with Sumsub handling passport, facial-match and liveness verification, and Twilio (plus email) delivering real-time notifications. Both the admin and consulate dashboards are equally critical. The admin side focuses first on system settings and notification controls, while the consulate view needs clear priority rules, slot visibility and a friction-free workflow for approving or rejecting applicants. I am after a clean, fast UI—nothing design-heavy, just intuitive screens built with solid front-end practices. I’m looking for a full-stack developer who is comfortable wiring multiple APIs together, structuring data models in Supabase, and thinking proactively about security or fraud-prevention patterns. If you have experience with similar verification stacks—or have integrated alternatives such as Onfido or Passbase before—let me know; your insight could shape later phases. Initial target is an MVP in three to five weeks, with scope for ongoing iteration once the first consulates come online. MVP acceptance criteria: • Sumsub verification fully integrated, storing results in Supabase • Slot-allocation logic that prevents double booking and exposes priority rules to the consulate dashboard • Admin dashboard managing system settings and notification templates • Consulate dashboard for day-to-day appointment handling • SMS and email triggers fired on key events • Brief architecture document outlining data flow, auth, and extensibility points When you reply, include links or brief summaries of past API-centric projects plus a short outline of how you would structure this system end to end. I value clear thinking, clean code and rapid iteration over heavy design work.
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167 freelancer chào giá trung bình $4.061 USD cho công việc này

****** Online Visa-Appointment Platform **** I checked your JD and I will build a secure, fraud-resistant visa-appointment system with Supabase backend, Sumsub identity verification, and Twilio/email notifications. The platform includes admin and consulate dashboards, each optimized for intuitive, fast workflows and clear slot-management rules. We’ll implement robust slot-allocation logic, preventing double bookings while exposing priority rules for consulates. 1. Applicant / User • Account creation & login • Identity verification (passport, facial match, liveness) • View available appointment slots • Book appointment • Receive SMS/email notifications 2. Consulate Staff • View appointment slots and applicant details • Approve or reject bookings • Apply priority rules • Receive notifications for updates 3. Admin • Manage system settings • Configure notification templates • Monitor overall activity • Access logs and reports • Manage slots and consulate access Let’s chat… Thanks
$3.200 USD trong 25 ngày
9,7
9,7

With over a decade of experience in web and mobile development, particularly in API-centric projects, I understand the unique challenges you face in building an AI Visa Booking Platform that prioritizes security and efficiency. Your focus on strong identity verification and transparent slot allocation aligns perfectly with my expertise in integrating multiple APIs, structuring data models, and implementing proactive security measures. In past projects, I have successfully implemented similar verification stacks and handled complex data structures to ensure seamless functionality. My proactive approach to security and fraud prevention aligns with your project requirements, and I am confident in delivering a clean, fast UI that prioritizes usability and functionality over unnecessary design elements. For your MVP, I will ensure full integration of Sumsub verification, implement slot-allocation logic to prevent double booking, and create intuitive dashboards for both admin and consulate users. With a focus on clean code and rapid iteration, I will work diligently to meet your timeline and budget requirements. I am ready to discuss further details and provide insights on how I would structure this system end-to-end. Let's connect and make your AI Visa Booking Platform a reality.
$4.000 USD trong 45 ngày
9,0
9,0

Hi, I went through your requirement and understand you’re building a visa appointment platform focused on eliminating fraud—using strong identity verification (Sumsub), a fair slot-allocation engine, and real-time notifications via Twilio/email. The dual-dashboard setup is key: admin for system control and configs, and consulate for clear prioritization and smooth applicant handling. I’ve worked on API-heavy MVPs involving identity verification, booking systems, and real-time workflows—especially integrating third-party services and designing scalable Supabase-backed architectures. A few quick questions: * Should slot allocation be rule-based only, or include dynamic prioritization (e.g., urgency tiers)? * Do you expect multi-country/consulate scaling in the MVP itself? * Any compliance requirements (GDPR, data residency)? My approach: Supabase (Postgres + Auth + RLS) as the core, edge functions for slot logic, webhook-based sync from Sumsub, and event-driven notifications via Twilio. Clean React-based dashboards with role-based access. Happy to discuss further and share project links. Best, SNR
$3.500 USD trong 20 ngày
9,1
9,1

Hello, With extensive experience in web services and software development, our team at Our-Software is well-equipped to handle your AI Visa Booking Platform project. Our expertise in PHP and Website Design will ensure that we are comfortable wiring the multiple APIs together for a seamless integration. We also have a deep understanding of structuring data models thanks to our proficiency in using technologies like Supabase. Moreover, we have a great track record of successfully developing and designing websites, which are intuitive with clean codes just as you expect for your visa-appointment platform. We value clear thinking, rapid iteration, and solid backend practices making us an ideal choice for your project. Additionally, we empathize with your concerns on security and fraud-prevention pattern; our past experiences have made us proactive in dealing with such issues. To give you a brief of how we would structure the system end to end: Firstly, we would integrate Sumsub verification seamlessly into your platform ensuring that results are stored securely in Supabase. Secondly, our slot-allocation logic will effectively prevent double booking while making the priority rules transparent for the consulate dashboard. Thirdly, we will design an Admin dashboard that gives you full control over system settings and notification templates. Fourthly, our Consulate dashboard will be friction-free to ensure a smooth workflow for handling ap Thanks!
$3.000 USD trong 15 ngày
8,6
8,6

Hi there, I reviewed your visa-appointment platform brief, and this is exactly the kind of project we handle well. I like that you're tackling fraud prevention head-on—that's a real pain point in this space. I have a couple of quick questions about your AI integration approach and whether you're handling appointment scheduling through government APIs or building your own system. Either way, we can make this work smoothly. I have delivered 1500+ web and mobile projects over 14+ years — happy to share relevant examples. Let's chat about next steps. Thanks, Hasan
$3.000 USD trong 60 ngày
8,7
8,7

Hi, I understand you need a clean, fast UI for an AI visa booking platform with strong identity and slot-allocation verification using Supabase, Sumsub, and Twilio integrations. Your focus on fraud prevention and intuitive admin/consulate dashboards aligns well with my full-stack development expertise. I will structure backend Supabase data models to securely store Sumsub results, design slot logic to prevent double booking with clear priority rules, and build straightforward React-based dashboards for seamless workflow. My experience integrating similar verification APIs (Onfido, Passbase) ensures robust security and clean code practices. I'd deliver an MVP in 3-5 weeks with architecture docs. Let's discuss your preferences for slot priority and notification triggers next. What specific priority rules should the consulate dashboard enforce for slot allocation? Best regards, Muhammad
$4.500 USD trong 30 ngày
8,3
8,3

Hi, This is Elias from Miami. I checked your project description and understand you’re building an online visa-appointment platform focused on preventing fraud through identity verification, fair slot allocation, and real-time notifications. The MVP centers on a Supabase backend with Sumsub, Twilio, and email integrations, plus clean admin and consulate dashboards that make approvals, settings, and booking workflows simple and reliable. I’ve worked on similar API-heavy platforms involving authentication, third-party integrations, dashboard workflows, and secure data handling. I’d be happy to go through the details and suggest the best structure for the MVP so it stays clean, secure, and easy to extend. I have a few questions to get better understanding. Q1 – Will applicants create their own accounts in the MVP, and if so, do you want Supabase Auth to handle all user roles including admin and consulate users? Q2 – How should the slot-allocation engine prioritize applicants — first come first served, rule-based scoring, or a manual review step from the consulate side? Q3 – Do you already have the Sumsub, Twilio, and email event flows mapped out, or should I help define the full verification and notification workflow end to end? Looking forward to hearing from you.
$4.000 USD trong 7 ngày
8,0
8,0

Hi, I have extensive experience in integrating multiple APIs, structuring data models, and implementing security measures in web applications. For your AI Visa Booking Platform, I will seamlessly integrate Sumsub, Supabase, and Twilio to ensure secure identity verification and real-time notifications. I will prioritize functionality over design, focusing on intuitive admin and consulate dashboards. Let's discuss further to align on the project details. Regards, Sai Bhaskar
$3.000 USD trong 45 ngày
7,8
7,8

⭐⭐⭐⭐⭐ Build a Reliable Online Visa Appointment Platform with Strong Security ❇️ Hi My Friend, I hope you're doing well. I've reviewed your project needs and see you're looking for a full-stack developer for your visa appointment platform. Look no further; Zohaib is here to help you! My team has already completed 50+ similar projects in developing secure online platforms. I will ensure strong identity checks and efficient slot allocation while integrating the necessary APIs effectively. ➡️ Why Me? I can easily develop your online visa-appointment platform as I have 5 years of experience in full-stack development, specializing in API integration, database management, and user interface design. I have a strong grip on Supabase, Sumsub, and Twilio, ensuring a robust and secure system. ➡️ Let's have a quick chat to discuss your project in detail and let me show you samples of my previous work. I look forward to discussing this with you! ➡️ Skills & Experience: ✅ Full-Stack Development ✅ API Integration ✅ Supabase Management ✅ Database Design ✅ Frontend Development ✅ Backend Development ✅ User Experience Design ✅ Security Best Practices ✅ Real-Time Notifications ✅ System Architecture ✅ Project Management ✅ Agile Methodologies Waiting for your response! Best Regards, Zohaib
$3.400 USD trong 2 ngày
7,7
7,7

Hi, ➡️ I read your project description about creating a secure, online visa-appointment platform. Your focus on robust identity checks and efficient slot-allocation is crucial for the success of such a platform. ⏺️ I specialize in full-stack development with extensive experience in Supabase and API integrations, including Sumsub and Twilio for real-time operations. My approach emphasizes clean code, proactive security measures, and intuitive UI design to ensure a frictionless user experience. I have previously developed systems with similar requirements, focusing on security and efficient data handling. Regards, Aftab Ahmad Full Stack Developer (12 Years of experience)
$3.000 USD trong 30 ngày
7,4
7,4

Hello, I can deliver your online visa-appointment platform end-to-end, integrating Supabase for the backend, Sumsub for identity verification, and Twilio/email for real-time notifications. I would design secure, normalized data models in Supabase, implement the slot-allocation engine to prevent double-booking, and build intuitive admin and consulate dashboards with clear workflows and priority rules. My approach prioritizes clean API integrations, robust security patterns, and rapid MVP delivery within your 3–5 week target, while providing documentation for future extensibility. I’ve previously built similar API-centric systems with identity verification, multi-role dashboards, and real-time notifications, and can provide references upon request.
$4.000 USD trong 7 ngày
7,2
7,2

Hello, I am excited about your project to build an AI-driven visa booking platform designed to eliminate fraud and black-market bookings. With over 9 years of full-stack development experience, Smart Sols specializes in secure, scalable, and user-friendly web applications. Our expertise in backend development using Laravel and native PHP, combined with proficient frontend skills in Vue.js and React.js, will ensure your platform is robust and intuitive. We also have strong experience integrating AI components and designing seamless UI/UX with Figma, which aligns perfectly with your goals. We understand the critical importance of security and reliability in visa appointment systems and are confident we can deliver a tailored solution that meets all your requirements efficiently. We look forward to potentially working together to bring your vision to life with quality and professionalism at every step.
$5.000 USD trong 35 ngày
6,9
6,9

Hello, "Hey there! I'm Mirza Muhammad from Live Experts, and I would love to help you bring your AI Visa Booking Platform to life. As a seasoned full-stack developer with expertise in various languages and platforms, I have the skills you need to build a robust and secure system like yours. Throughout my career, I've wired multiple APIs together and structured complex data models making me comfortable with your preferred stack of Supabase, Sumsub, and Twilio. One of the key aspects of your project is the ability to prevent fraudulent activity. My experience with security and fraud-prevention patterns will definitely come in handy here. While I haven't incorporated Onfido or Passbase before, I have integrated alternate solutions for similar requirements which have given me valuable insights into transaction processing, identification verification, and secure payment processing. This experience will contribute positively to all phases of your project. In terms of structure, my plan involves first integrating Sumsub verification seamlessly and securely using Supabase as a storage solution. Creating an intuitive dashboard for both admins and consulates that meet their unique needs is my priority - allowing admins to manage system settings effectively alongside ensuring the consulate dashboard has better slot-visibility. Moreover, having mastered Solid Front-end practices across many projects, I assure you of a clean & fast user interfa Thanks!
$5.000 USD trong 2 ngày
6,6
6,6

Hello! As per your project post, you’re looking to build an AI powered visa appointment platform designed to prevent fraud and black market bookings through strong identity verification and a transparent slot allocation system. The goal is to create a secure and efficient platform where applicants can verify their identity, request visa appointments, and interact with a system that ensures fair slot distribution. My focus will be on delivering a secure MVP platform featuring: Supabase backend with structured data models for applicants, consulates, and appointment slots, identity verification integration using Sumsub for passport validation, facial match, and liveness checks, real time notifications through Twilio and email, transparent slot allocation logic to prevent unfair bookings, and dedicated dashboards for both admins and consulates. The admin panel will manage system settings, notifications, and platform configuration. I specialize in full stack development, API integrations, secure authentication systems, and scalable backend architecture. My focus will be on building a modular platform where Supabase handles authentication and data storage while external verification and notification services integrate seamlessly into the workflow. Let’s connect to discuss the architecture, fraud prevention mechanisms, and the fastest path to delivering the MVP within your timeline. Best regards, Nikita Gupta.
$3.000 USD trong 45 ngày
6,4
6,4

Your architecture is solid - Supabase + Sumsub + Twilio is a clean stack for this kind of anti-fraud booking system. I've built similar multi-API platforms before, including identity verification flows and slot/scheduling engines with conflict prevention. Here's how I'd approach it: Supabase for auth, row-level security on all appointment data, a booking engine with optimistic locking to prevent double-slots, and Sumsub webhooks feeding verification status back into the user record. Admin and consulate dashboards in React or Vue, kept minimal and functional. I've integrated Sumsub specifically before, plus Twilio for SMS/email triggers on state changes. Happy to share examples privately. I can have the MVP ready in 4 weeks with weekly demos so you can steer direction early. - Usama
$4.500 USD trong 28 ngày
6,6
6,6

Hi there, I reviewed your project about building a secure visa-appointment platform using Supabase, Sumsub verification, and Twilio/email notifications, with both admin and consulate dashboards. My approach: • Design a Supabase data model for users, verification status, appointment slots, and booking rules with strong constraints to prevent double booking. • Integrate Sumsub for identity, facial match, and liveness checks, storing verification results securely. • Build admin and consulate dashboards with clean, fast UI for managing settings, slots, approvals, and workflows. • Implement slot-allocation logic with priority handling and real-time availability updates. • Configure Twilio and email triggers for key events like verification, booking, approval, and reminders. You will receive a working MVP with secure verification, reliable booking logic, dashboards for both roles, and a clear architecture document. Would you like the slot allocation to support queueing/waitlist logic in case of cancellations or over-demand? Cheers, Alexander
$3.000 USD trong 7 ngày
6,5
6,5

Hi there, I appreciate the opportunity to assist you in developing your innovative visa-appointment platform. As a top California freelancer with a portfolio of five-star reviews, I am confident that my extensive experience in full-stack development and API integration perfectly aligns with your project needs. I have previously worked on projects that involved complex API wiring and data models in Supabase, ensuring seamless user experiences while prioritizing security against fraud. The critical functionality you require, such as integrating Sumsub for verification, designing intuitive admin and consulate dashboards, and setting effective notification systems using Twilio, will be tackled with a clear focus on usability and robustness. I propose to deliver an MVP within three to five weeks, keeping the lines of communication open for ongoing improvements as the platform scales. Could you expand on the specific user roles and permissions you envision for both the admin and consulate dashboards? Thanks,
$4.885 USD trong 12 ngày
6,5
6,5

Your platform’s core challenge is securing identity while keeping workflows smooth for admins and consulates. I’ve built similar booking and verification systems tying together Supabase with ID checks like Onfido and integrated Twilio-triggered notifications, so I understand how to keep the data flow clean and fraud-resistant. Here’s how I’d structure it: Supabase as the single source of truth with tables for users, appointments, slots, and verification results. Sumsub’s webhook responses update verification states and trigger slot allocation logic enforced by database constraints to block double bookings and enforce priority rules. Admin settings and notification templates live in a config table editable via the admin dashboard UI. The consulate dashboard queries real-time slot availability, verification status, and appointment queue with simple, responsive components to approve or reject efficiently. To ensure security, I’d implement role-based auth in Supabase’s policies and encrypt sensitive data at rest. For notifications, I’d build modular services so SMS and email send reliably on status changes, retrying failures. Do you have specific priority rules planned for the slot allocation engine? Also, should integration include a manual override for edge cases? I’m ready to start crafting the MVP and can have the initial architecture and data flow document scoped within the first few days.
$4.000 USD trong 7 ngày
6,0
6,0

Hi! I specialize in building secure, API-driven platforms that prevent fraud and streamline complex workflows. With 9+ years of experience in full-stack development, Supabase, and real-time notification systems, I deliver robust, scalable solutions. Here's how I can help: * Integrate Sumsub for passport, facial-match, and liveness verification with Supabase storage * Implement transparent slot-allocation logic and priority rules for consulate dashboards * Build admin dashboards for system settings and notification controls * Trigger real-time SMS and email notifications on key events * Ensure clean, fast, and intuitive UI for both admin and consulate workflows Could you clarify if multi-consulate support with different rules per consulate is required for MVP?
$4.000 USD trong 7 ngày
5,9
5,9

Hi there, I understand you need an MVP visa-appointment platform using Supabase, Sumsub for KYC/liveness, and Twilio/email for realtime alerts , I’ve built API-driven booking and verification flows before and can wire these services securely and quickly. - Integrate Sumsub with Supabase: store verification results, webhooks, and audit trail - Implement slot-allocation engine preventing double-booking, exposing priority rules in the consulate dashboard - Build Admin dashboard for system settings, notification templates and staged deploys - Deliver Consulate dashboard with approve/reject workflow, slot visibility, SMS/email triggers and brief architecture doc Skills: ✅ Supabase ✅ Sumsub / identity verification APIs ✅ Twilio & email notifications ✅ API integrations, webhooks, auth (JWT/session) & deployment ✅ Security/fraud patterns: audit logging, rate limits, transactional locking Certificates: ✅ Microsoft® Certified: MCSA | MCSE | MCT ✅ cPanel® & WHM Certified CWSA-2 I’m available to start and can deliver the MVP in 3-5 weeks. Which consulate workflows (priority rules, required documents, daily slot limits) should be configurable per-consulate in the MVP? Best regards,
$3.800 USD trong 7 ngày
5,6
5,6

DUbai, United Arab Emirates
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