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I need a seasoned full-stack developer to build a secure digital identity system that works seamlessly across both web and mobile. Core functionality must include: • Robust user authentication and verification • End-to-end data encryption and overall security hardening • Flexible user-profile management with editable personal data, avatars, and activity logs I expect a clean, scalable codebase, clear API documentation, and a straightforward deployment guide so I can spin up new environments quickly. If you have experience with modern stacks such as Node.js, React / React Native, or comparable frameworks—and can prove past success delivering security-focused applications—let’s talk timelines and milestones.
Project ID: 40731160
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391 freelancers are bidding on average $466 USD for this job

Hi — Elias here from Miami. I understand you're looking to build a secure digital identity platform. This is vital for ensuring user trust and regulatory compliance in today’s digital landscape. What usually matters most here is the balance between security and user experience. A common issue in systems like this is managing authentication and access control without complicating the user flow. The tricky part is ensuring the system can scale while remaining secure and maintainable. My approach would involve structuring the application with a focus on modular components, allowing for easy updates and integration of new features as your needs evolve. Prioritizing robust API development will streamline interactions between the front end and back end, ensuring performance and security are never compromised. I've worked on similar platforms, focusing on secure user authentication and data integrity. This experience allows me to anticipate potential pitfalls and address them proactively. A few questions to better understand the scope: Q1 – What user roles and permissions are you envisioning for the system? Q2 – Are there any specific integrations with existing services you require? Q3 – What are your scaling expectations as user adoption grows? Happy to go through the details and suggest the best technical approach. Looking forward to hearing from you.
$500 USD in 5 days
8.9
8.9

Leveraging a decade of experience in crafting dynamic, secure digital solutions as a full-service digital agency, 360 Elevate is well-equipped to build your Full-Stack Digital Identity Platform. My name is Rajat and I lead this team of dedicated professionals that spans development, design, marketing, content, QA, and automation. We are experienced in using Node.js and React Native, modern frameworks that can deliver upon your security-focused application need. At 360 Elevate we prioritize delivering scalable codebases with robust documentation and easy deployment guides. This ensures that you can quickly spin up new environments without the headache of extensive tech knowledge. Our proficiency in AngularJS and Full Stack Development enables us to create the flexible user-profile management system which you require for editable personal data, avatars, and activity logs. Additionally, our comprehensive grasp on Web Development ensures inclusive functioning across web and mobile seamlessly. Moreover, what makes our offering unique is the breadth of our service offerings. Should you choose to further enhance or grow your digital platform post-launch, we are more than capable across avenues such as AI automation and software/application development. In short, we combine adaptability with security-focus-hardened systems guaranteeing a solid digital foundation for your business going forward.
$480 USD in 10 days
8.2
8.2

Hi, I can build the complete digital identity platform across web, mobile and backend/API, with security designed into the architecture from the beginning. I recommend Node.js + PostgreSQL, React for web and React Native for mobile. The system will include secure authentication and verification, protected session/token handling, encrypted sensitive data, editable user profiles, avatar management, activity/audit logs, validation, rate limiting, access controls and security hardening. I’ll deliver a clean scalable codebase, documented REST APIs, environment-based configuration, deployment instructions and testing for the critical authentication/profile flows. Price: $900 fixed Timeline: 2–3 weeks Proposed milestones: Architecture, database & authentication Verification, profiles & activity logs Web application Mobile application Security testing, documentation & deployment Before starting, I’d confirm whether “verification” means email/phone OTP or also government ID/KYC/biometric verification, as that changes the scope. I can also provide relevant real project examples with my exact role. Thanks, Yasir
$900 USD in 15 days
7.9
7.9

Hi, CnEL India can build a secure digital identity platform across web and mobile with a scalable full-stack architecture. Our approach: * Review identity workflows, authentication, verification requirements, user roles, and data model. * Build responsive web interfaces with React and mobile apps with React Native. * Develop secure Node.js APIs with structured database integration. * Implement authentication, verification, session/token management, password security, and access controls. * Build editable profiles, avatars, activity history, and account management. * Apply encryption for sensitive data in transit and at rest, input validation, secure API handling, and security hardening. * Implement proper authorization so users can access only permitted data. * Add logging and controlled error handling without exposing sensitive information. * Structure APIs and components for maintainability and future scaling. * Test authentication, permissions, profile workflows, API security, mobile/web behavior, and edge cases. * Provide API documentation, environment configuration, deployment instructions, and handover. We’ll first finalize the identity and security architecture, then develop the core authentication/profile modules and expand through tested milestones.
$500 USD in 15 days
7.7
7.7

Full-Stack Development | Node.js | React Native | Authentication | API Security Hi, Thanks for sharing the details. You have explained your requirements very clearly. I have experience developing full-stack platforms, mobile applications, and API-driven systems. I can build your digital identity solution for web and mobile with a focus on security, scalability, and a clean user experience. I would suggest React or React Native with Node.js and a secure database, depending on your web and mobile requirements. Once I review the expected verification process, user roles, and data requirements, I can provide a clear milestone-based timeline and cost estimate. I’d be happy to discuss your project and help turn it into a secure, production-ready identity platform. Thanks! Purnima
$750 USD in 12 days
7.8
7.8

Hi, I can build this as a secure identity platform with authentication, verification, profiles, activity tracking, and a clean API layer shared across web and mobile. I’ll focus on security from the architecture level, including secure authentication flows, authorization, encryption, input validation, session/token protection, and audit logging. The profile system will support editable personal information, avatars, account settings, and a reliable activity history without compromising sensitive user data. I can use React/React Native with Node.js to keep the experience consistent across web and mobile while maintaining a scalable backend. The codebase will be modular and documented so additional identity or verification features can be introduced without restructuring the core system. I’ll also provide clear API documentation, environment configuration, deployment instructions, and a setup process that makes creating new environments straightforward. I’m ready to discuss the security requirements, milestones, and timeline and can share relevant full-stack work on request. Best, Rahul
$400 USD in 12 days
8.0
8.0

⭐⭐⭐⭐⭐ Build a Secure Digital Identity System for Web and Mobile ❇️ Hi My Friend, I hope you are doing well. I've reviewed your project requirements and see you are looking for a full-stack developer. Look no further; Zohaib is here to help you! My team has successfully completed 50+ similar projects for secure digital identity systems. I will create a robust user authentication system, ensure end-to-end data encryption, and build a flexible user-profile management feature, all while providing a clean codebase and clear documentation. ➡️ Why Me? I can easily build your secure digital identity system as I have 5 years of experience in full-stack development, focusing on user authentication, data encryption, and profile management. My expertise includes Node.js, React, and React Native. Additionally, I have a strong grip on security best practices and API design to ensure your application is both secure and scalable. ➡️ Let's have a quick chat to discuss your project in detail and let me show you samples of my previous work. Looking forward to discussing this with you in chat. ➡️ Skills & Experience: ✅ Full-Stack Development ✅ User Authentication ✅ Data Encryption ✅ API Development ✅ React & React Native ✅ Node.js ✅ Mobile Development ✅ Security Best Practices ✅ Database Management ✅ Scalable Codebase ✅ Documentation Skills ✅ User Profile Management Waiting for your response! Best Regards, Zohaib
$350 USD in 2 days
7.8
7.8

Hi, I understand you need a secure digital identity platform for web and mobile, with reliable authentication, user verification, encrypted data, editable profiles, avatars, and activity logs. I would build the backend with Node.js and clear APIs, then connect the web interface using AngularJS while keeping the code clean and easy to scale. JavaScript will support the shared application logic, validation, and secure user flows. I would also focus on access control, secure session handling, encryption, input validation, audit logging, and security hardening. The project would include API documentation and a simple deployment guide so you can create new environments without confusion. I can divide the work into clear milestones covering the architecture, authentication, profile features, security review, testing, documentation, and deployment. Will the platform use a specific identity provider, database, mobile framework, and compliance standard such as GDPR or HIPAA? I would be glad to review your preferred mobile approach and current infrastructure before confirming the timeline.
$750 USD in 12 days
7.4
7.4

When building a secure digital identity platform, the real challenge lies in integrating strong security measures with user-friendly functionality across the web and mobile. To avoid potential risks like data loss or security breaches during development, I will work in a controlled enviroment without affecting your live systems. Safe staging build: develop the application in a private staging area first. Security implementation: integrate user authentication and data encryption from the start. Profile management setup: create flexible user profiles with editable data and logs. Documentation and deployment: provide clear API documentation and a deployment guide. Could you clarify if there are specific user authentication methods you prefer to implement? Rajavel
$579 USD in 7 days
7.4
7.4

Hello!, I am a Florida-based senior software engineer and this project stands out because a secure digital identity platform is not just “another full-stack build” and the biggest pain point is usually trust, verification flow, and keeping the system secure without making it painful to use. I can help you build this in a clean, practical way: 1. Define the identity lifecycle and access rules 2. Build secure backend APIs with auth, validation, and audit logs 3. Create a smooth frontend experience for users and admins 4. Test edge cases, security gaps, and deployment readiness My focus would be on making the platform seamless, stable, and easy to extend later, not just getting something working. I pay close attention to details because identity systems fail when small things are missed. Relevant work I’ve done includes: - Secure SaaS dashboard for user verification and roles - Internal compliance portal with API-driven audit trails - Mobile onboarding flow for a fintech-style app A few quick questions: 1. What exact identity checks do you need first, login only, document verification, biometrics, or MFA? 2. Do you already have the API architecture or data model, or should I design that from scratch? 3. Is the first release web only, or should React Native be included from day one? If you want, I can map the fastest secure path to an MVP and help you avoid costly rework later. -James
$600 USD in 4 days
7.1
7.1

Hi, I’m interested in building your Full-Stack Digital Identity Platform. I have 11+ years of professional software development experience, with strong expertise in Java, Spring Boot, Spring Security, Node.js, React, REST APIs, databases, authentication and secure enterprise applications. For a digital identity platform, I can build a clean and scalable architecture covering: * Secure user registration, login and authentication * JWT/session-based authentication and authorization * Password hashing and secure credential handling * User profiles with editable personal information and avatars * Role-based access control and permissions * Activity/audit logging * Secure REST APIs with validation and error handling * Sensitive-data protection and appropriate encryption * Rate limiting and protection against common API security issues * Secure file/avatar handling * PostgreSQL/MySQL database design and relationships * API documentation and environment configuration * Docker-based deployment and clear setup/deployment documentation For the web layer, I can work with React/JavaScript/TypeScript, and I can integrate the backend identity APIs with a mobile client such as React Native. My strongest specialization is the backend/security/full-stack architecture**, rather than claiming to be a dedicated native mobile specialist. I’m available to start immediately.
$250 USD in 2 days
7.3
7.3

With over a decade of experience specializing in web and software development, I am well-prepared to deliver a highly secure, scalable and user-friendly digital identity system that caters to your specific needs. My fluency in modern stacks including Node.js, React, and React Native, alongside my in-depth knowledge of encryption techniques and security hardening measures positions me as the ideal candidate for this project. In addition to security, I understand the significance of backend infrastructure optimization when it comes to supporting significant user activity. Through solutions like robust user authentication with data encryption and flexible user-profile management - tailorable as per the project requirements - I'm committed to establishing an efficient platform that is easy to deploy and maintain. Furthermore, my past record substantiates my capability in developing security-focused applications. I've coded responsive websites across various frameworks such as AngularJS, Laravel, PHP giving me a unique understanding of full-stack development that extends beyond just JavaScript. Whether it's building interfaces on both web and mobile or delivering clear API documentation that helps you navigate through the platform with ease, I will ensure your project is delivered on time with utmost professionalism and proficiency. Choose me for an end-to-end development solution that keeps your users' data safe while being effortlessly manageable.
$250 USD in 7 days
7.2
7.2

Hi, I went through your project details and understand what you're looking to achieve. I'd be interested in working with you on this. Based on the requirements you've shared, I can handle the project from start to completion while keeping the work aligned with your expectations, timeline, and desired outcome. My approach is straightforward: first, I'll make sure the requirements and expected deliverables are clear. Then I'll complete the work in structured stages, share progress along the way, incorporate your feedback, and deliver the final work after everything has been reviewed. Before we begin, I have a couple of questions about your requirements that will help me understand the scope more accurately. Feel free to message me so we can discuss the details and determine the best way to move forward. Best regards, Anum
$250 USD in 1 day
6.8
6.8

Hello, I can help you with "Full-Stack Digital Identity Platform" as per your given set of instructions. Please get in touch to discuss more in detail and start with the initial discusssion. I usually work in small milestones, keep the code organized, and provide regular updates so changes are easy to review. Let's discuss the current setup. I'll suggest the best implementation and an accurate timeline. ⭐ 5.0/5 from a recent client: "A more professional version: “Excellent work! The job was completed within the committed timeline. Great quality, professionalism, and timely delivery. Highly appreciated and recommended.”" Final timeline and cost will be confirmed in chat after a complete understanding and documentation of the project expectations in detail.
$525 USD in 8 days
6.9
6.9

Hello I can build your cross-platform digital identity system using React, React Native, and a secure Node.js backend. I specialize in architecting platforms with zero-knowledge encryption, hardened authentication, and modular user profile management with detailed activity logging. You'll receive a clean, scalable codebase alongside clear Swagger API documentation and Docker setup guides for effortless deployment. Do you have a preferred identity verification provider (like Onfido or Stripe Identity) in mind for this? Best regards, Giáp Văn Hưng
$402 USD in 7 days
6.9
6.9

Your digital identity platform needs one codebase that handles authentication, profile management, and activity logs across web and mobile without duplicating logic — that is the exact problem I am solving here. Authentication: JWT with refresh token rotation and MFA via Node.js and Express. Token rotation closes the session hijacking gap that most developers leave open by issuing static tokens. Encryption: AES-256 on sensitive profile fields, bcrypt for passwords, rate-limiting on every auth endpoint. Brute-force attempts get cut off before they reach your verification layer. Profile and activity module: editable personal data, avatar uploads to AWS S3, and a timestamped activity log giving users full visibility into their account events — which you specifically called out. Frontend: one shared React and React Native component library covering web and mobile together, which keeps your UI consistent and cuts build time when you add features later. Delivery includes Postman-ready API documentation and a step-by-step deployment guide so you can spin up new environments without needing me on the call. One problem worth flagging early: avatar uploads without file-type validation and size caps are a common injection vector in identity systems — I will lock that down by default. Delivery: USD 720, 7 days. For identity verification, do you need document-based KYC or is email and phone OTP sufficient for your first release?
$720 USD in 7 days
6.8
6.8

Hi there, I'm ready to tackle the development of your secure digital identity system. Your requirement for robust user authentication and flexible profile management resonates well with my expertise in Node.js and React. I can implement secure end-to-end data encryption to ensure that user data remains protected throughout the application lifecycle. To guarantee a clean and scalable codebase, I will follow best practices in API documentation and provide a detailed deployment guide for easy environment setups. Let’s discuss your timelines and milestones to align with your project vision. Regards, Ali
$250 USD in 7 days
6.5
6.5

Hello, I’d be glad to help shape your secure digital identity platform across web and mobile. I can contribute to authentication flows, verification, profile management, activity logging, API documentation, and deployment guidance with a strong focus on maintainability and security. A useful improvement would be establishing threat modeling and security testing milestones early, alongside environment-based configuration for repeatable deployments. I’m ready to collaborate on a clear architecture and milestone plan. Check out my portfolio here:- https://www.freelancer.com/u/installerpoint Best Regards, Muhammad Adeel
$250 USD in 4 days
6.6
6.6

Hi there! I can help you build a secure digital identity system that works seamlessly across both web and mobile. - What identity verification method is required, such as email/phone verification, document verification or an external identity provider? - Should the activity log be user-visible only, or also provide an immutable audit trail for administrators and security events? As a senior full-stack developer, I have over 8 years of experience in design and development, with extensive experience in theme customization, custom coding, and development. - I have successfully designed and developed custom themes, installed and configured Shopify apps, and customized templates to meet branding guidelines. - Strong proficiency in HTML5, CSS3, JavaScript, and node.js and php. - Expert UI/UX Designer for implementing and refining designs according to best practices. With a solid track record of collaborating with cross-functional teams and delivering intermediate to large-scale projects successfully, I am confident that I can contribute to the success of your project. If you have any queries, feel free to ask. I am open to a discussion over a call/ chat. Looking forward to your response. Warm regards, Deepak.k
$500 USD in 7 days
6.9
6.9

Hello, I’m a full-stack developer with 10 years of experience building secure web and mobile applications using Node.js, React.js, React Native, REST APIs, and scalable database architectures. I can develop your digital identity platform with security and maintainability built into the architecture from the beginning. I’ll implement secure authentication and verification, protected API access, encrypted data handling, profile management with editable information and avatars, and comprehensive activity logging. The backend will use clear separation of responsibilities, strong input validation, secure session/token handling, and appropriate authorization controls. React.js can power the web interface while React Native provides a consistent Android/iOS experience. I’ll also provide well-structured API documentation, environment configuration guidance, deployment instructions, and a clean codebase designed for future scaling. I’d be glad to discuss the milestones and security requirements. Best regards
$250 USD in 7 days
7.0
7.0

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