Full-Stack Developer for Comprehensive Platform
Budget / SalaryHourly project
TypeFreelance project
LocationRemote
Posted1 hour ago
**THE PDF FILE HAS MORE DETAILS
Independent Full-Stack Product Builder Needed for Proprietary Multi-Portal Platform
I’m seeking an independent full-stack product designer/developer to audit and advance a proprietary platform combining a public website with three authenticated portals:
* Client Portal
* Studio Admin Portal
* Artist Professional Portal
This is not a basic website, landing page, or form project. It will involve platform architecture, UX/UI, full-stack development, role- and record-level permissions, complex workflows, secure data handling, AI-assisted functionality, testing, deployment, and future expansion.
The first step is a paid technical discovery engagement to validate the existing foundation, define a practical MVP, and establish a clear development path.
Existing Foundation
You will not start from a blank page. Current materials include:
1. Product vision and architecture
2. Branding and design direction
3. Portal structures and navigation
4. User roles and workflows
5. Information architecture
6. Functional requirements and business rules
7. Data relationships
8. AI concepts and workflow ideas
9. Future expansion plans
10. Developer handoff materials
11. Initial development code
The codebase is a starting point, not a constraint. You should be comfortable recommending what to preserve, refactor, replace, or rebuild.
Platform Overview
Public Website
A public-facing website with content, resources, forms, navigation, and entry points into the platform.
Client Portal
An authenticated environment for account management, guided intake, questionnaires, approved information and file submission, progress tracking, personalized workflows, and deliverables.
Studio Admin Portal
An authenticated environment for authorized staff to manage users, records, workflows, tasks, permissions, documentation, operations, and AI-assisted processes.
Artist Professional Portal
An authenticated environment for authorized professionals to access assigned information, records, tasks, files, workflows, communications, and role-specific functionality.
The preferred direction is one unified application with role-based authentication and permissions.
Potential Scope
Work may include:
1. Product architecture and technical planning
2. UX/UI and responsive design
3. Website and portal development
4. Authentication and account management
5. Role- and record-level permissions
6. Database, API, and backend development
7. Secure file and image storage
8. Complex forms and conditional workflows
9. Branching, dependencies, and save/resume functionality
10. Notifications, tasks, and status tracking
11. Search, filtering, and dashboards
12. Data routing and structured records
13. Integrations
14. Testing, QA, deployment, and documentation
15. Maintenance and future development
AI and Workflow Engine
A major component will be an AI intelligence layer integrated into the platform, not a standalone chatbot.
Potential capabilities include guided intake, dynamic questionnaires, conversational follow-up, information extraction, classification, summarization, analysis, prioritization, task generation, recommendations, draft communications, structured deliverables, authorized information retrieval, human review, and future image analysis.
Workflows may include branching, dependencies, dynamic questions, contradiction detection, escalation, review queues, role-specific routing, automation, structured outputs, records, history, and permission-controlled information sharing.
The architecture should allow workflows, questions, rules, permissions, and outputs to evolve without rebuilding the entire application.
Phased Engagement
Phase 1: Paid Technical Discovery and MVP Plan
The first assignment will:
1. Audit the existing code, architecture, designs, workflows, database, permissions, handoff materials, and AI concepts
2. Identify risks, gaps, dependencies, and security concerns
3. Determine what to preserve, refactor, replace, or rebuild
4. Validate core user journeys
5. Separate MVP requirements from future functionality
6. Recommend the technology stack and architecture
7. Define implementation and testing strategy
8. Estimate effort, timeline, infrastructure, and major costs
Deliverables should include a technical audit, risk assessment, recommended architecture, MVP scope, prioritized roadmap, data and permissions recommendations, AI integration plan, estimated timeline and budget, and a clear decision point for development.
This phase may be a fixed-price milestone or capped hourly engagement.
Phase 2: MVP
The MVP should establish a secure end-to-end foundation including:
1. Public website
2. Shared authentication
3. Core database
4. Role-based permissions
5. Client Portal
6. Studio Admin Portal
7. Essential Artist Professional Portal
8. Core intake and conditional logic
9. Secure records and files
10. Authorized data routing
11. Limited human-reviewed AI functionality
12. Notifications and task tracking
13. Audit logging
14. Testing and deployment
Phase 3: Expansion
Future work may include advanced AI, expanded questioning, automation, image analysis, dashboards, reporting, configurable workflows, integrations, additional roles, AI monitoring, performance improvements, and advanced deliverables.
Security and Privacy
Relevant experience should include secure authentication, least-privilege access, encryption, protected file storage, consent, data minimization, retention and deletion controls, AI provider security, protection against data leakage and prompt injection, audit logs, backups, recovery, security testing, and human oversight.
User data may not be used for external model training without authorization.
Ideal Candidate
I’m seeking one highly capable independent professional, not a large agency. Relevant experience includes:
1. Full-stack SaaS and platform development
2. Multi-portal systems
3. Client and admin applications
4. Role-based access control
5. Database and API architecture
6. Complex forms and workflow systems
7. AI-enabled applications and orchestration
8. Conversational AI and structured outputs
9. Human-in-the-loop systems
10. Secure personal, document, and image data
11. Image analysis or computer vision
12. React, Next.js, PostgreSQL, or comparable technologies
13. Cloud infrastructure and integrations
14. Figma and product design
15. Code auditing and refactoring
16. Deployment and maintenance
Strong technical judgment, product thinking, security awareness, discretion, communication, independence, and realistic estimation are essential.
This may suit a portfolio-build candidate seeking a substantial end-to-end case study. Any public portfolio use requires prior written approval and appropriate anonymization. Prior knowledge of the business domain is not required.
Budget and Confidentiality
The initial engagement is a paid Phase 1 discovery and planning assignment. The MVP will be scoped afterward around a realistic first release. Because the budget is limited, the first assignment will be focused and practical. Hourly or milestone-based work is acceptable, with defined scope, deliverables, payment terms, and approval for each phase.
No unpaid test project or speculative development is required.
An NDA is required before detailed information is provided. Confidential information includes the business concept, architecture, terminology, workflows, methodology, AI logic, data structures, code, user data, materials, roadmap, and project IP.
Project materials may not be shared, reused, published, used for another client, used for AI or model training, or included in a portfolio without written authorization.
How to Apply
Please send:
1. Brief introduction and relevant full-stack experience
2. Comparable platform examples and your role
3. Preferred technology stack
4. Database, authentication, multi-portal, and permissions experience
5. Complex workflow and AI application experience
6. Image analysis experience, if applicable
7. Security and privacy experience
8. Code audit and refactoring experience
9. Experience working from existing specifications
10. Availability for Phase 1
11. Hourly rate or milestone preference
12. Confirmation that you work independently and can sign an NDA
13. Proposed Phase 1 audit approach
14. How you would keep the build practical and cost-effective
15. Whether you are interested in a potential portfolio case study, subject to approval
Please keep your application high level. Do not request the complete business concept before screening.
Next Step
The immediate goal is to select an independent senior builder for a paid technical review, define a focused MVP, and establish a practical path to a secure platform spanning the public website, three authenticated portals, AI-assisted workflows, secure data routing, and future functionality.
Independent Full-Stack Product Builder Needed for Proprietary Multi-Portal Platform
I’m seeking an independent full-stack product designer/developer to audit and advance a proprietary platform combining a public website with three authenticated portals:
* Client Portal
* Studio Admin Portal
* Artist Professional Portal
This is not a basic website, landing page, or form project. It will involve platform architecture, UX/UI, full-stack development, role- and record-level permissions, complex workflows, secure data handling, AI-assisted functionality, testing, deployment, and future expansion.
The first step is a paid technical discovery engagement to validate the existing foundation, define a practical MVP, and establish a clear development path.
Existing Foundation
You will not start from a blank page. Current materials include:
1. Product vision and architecture
2. Branding and design direction
3. Portal structures and navigation
4. User roles and workflows
5. Information architecture
6. Functional requirements and business rules
7. Data relationships
8. AI concepts and workflow ideas
9. Future expansion plans
10. Developer handoff materials
11. Initial development code
The codebase is a starting point, not a constraint. You should be comfortable recommending what to preserve, refactor, replace, or rebuild.
Platform Overview
Public Website
A public-facing website with content, resources, forms, navigation, and entry points into the platform.
Client Portal
An authenticated environment for account management, guided intake, questionnaires, approved information and file submission, progress tracking, personalized workflows, and deliverables.
Studio Admin Portal
An authenticated environment for authorized staff to manage users, records, workflows, tasks, permissions, documentation, operations, and AI-assisted processes.
Artist Professional Portal
An authenticated environment for authorized professionals to access assigned information, records, tasks, files, workflows, communications, and role-specific functionality.
The preferred direction is one unified application with role-based authentication and permissions.
Potential Scope
Work may include:
1. Product architecture and technical planning
2. UX/UI and responsive design
3. Website and portal development
4. Authentication and account management
5. Role- and record-level permissions
6. Database, API, and backend development
7. Secure file and image storage
8. Complex forms and conditional workflows
9. Branching, dependencies, and save/resume functionality
10. Notifications, tasks, and status tracking
11. Search, filtering, and dashboards
12. Data routing and structured records
13. Integrations
14. Testing, QA, deployment, and documentation
15. Maintenance and future development
AI and Workflow Engine
A major component will be an AI intelligence layer integrated into the platform, not a standalone chatbot.
Potential capabilities include guided intake, dynamic questionnaires, conversational follow-up, information extraction, classification, summarization, analysis, prioritization, task generation, recommendations, draft communications, structured deliverables, authorized information retrieval, human review, and future image analysis.
Workflows may include branching, dependencies, dynamic questions, contradiction detection, escalation, review queues, role-specific routing, automation, structured outputs, records, history, and permission-controlled information sharing.
The architecture should allow workflows, questions, rules, permissions, and outputs to evolve without rebuilding the entire application.
Phased Engagement
Phase 1: Paid Technical Discovery and MVP Plan
The first assignment will:
1. Audit the existing code, architecture, designs, workflows, database, permissions, handoff materials, and AI concepts
2. Identify risks, gaps, dependencies, and security concerns
3. Determine what to preserve, refactor, replace, or rebuild
4. Validate core user journeys
5. Separate MVP requirements from future functionality
6. Recommend the technology stack and architecture
7. Define implementation and testing strategy
8. Estimate effort, timeline, infrastructure, and major costs
Deliverables should include a technical audit, risk assessment, recommended architecture, MVP scope, prioritized roadmap, data and permissions recommendations, AI integration plan, estimated timeline and budget, and a clear decision point for development.
This phase may be a fixed-price milestone or capped hourly engagement.
Phase 2: MVP
The MVP should establish a secure end-to-end foundation including:
1. Public website
2. Shared authentication
3. Core database
4. Role-based permissions
5. Client Portal
6. Studio Admin Portal
7. Essential Artist Professional Portal
8. Core intake and conditional logic
9. Secure records and files
10. Authorized data routing
11. Limited human-reviewed AI functionality
12. Notifications and task tracking
13. Audit logging
14. Testing and deployment
Phase 3: Expansion
Future work may include advanced AI, expanded questioning, automation, image analysis, dashboards, reporting, configurable workflows, integrations, additional roles, AI monitoring, performance improvements, and advanced deliverables.
Security and Privacy
Relevant experience should include secure authentication, least-privilege access, encryption, protected file storage, consent, data minimization, retention and deletion controls, AI provider security, protection against data leakage and prompt injection, audit logs, backups, recovery, security testing, and human oversight.
User data may not be used for external model training without authorization.
Ideal Candidate
I’m seeking one highly capable independent professional, not a large agency. Relevant experience includes:
1. Full-stack SaaS and platform development
2. Multi-portal systems
3. Client and admin applications
4. Role-based access control
5. Database and API architecture
6. Complex forms and workflow systems
7. AI-enabled applications and orchestration
8. Conversational AI and structured outputs
9. Human-in-the-loop systems
10. Secure personal, document, and image data
11. Image analysis or computer vision
12. React, Next.js, PostgreSQL, or comparable technologies
13. Cloud infrastructure and integrations
14. Figma and product design
15. Code auditing and refactoring
16. Deployment and maintenance
Strong technical judgment, product thinking, security awareness, discretion, communication, independence, and realistic estimation are essential.
This may suit a portfolio-build candidate seeking a substantial end-to-end case study. Any public portfolio use requires prior written approval and appropriate anonymization. Prior knowledge of the business domain is not required.
Budget and Confidentiality
The initial engagement is a paid Phase 1 discovery and planning assignment. The MVP will be scoped afterward around a realistic first release. Because the budget is limited, the first assignment will be focused and practical. Hourly or milestone-based work is acceptable, with defined scope, deliverables, payment terms, and approval for each phase.
No unpaid test project or speculative development is required.
An NDA is required before detailed information is provided. Confidential information includes the business concept, architecture, terminology, workflows, methodology, AI logic, data structures, code, user data, materials, roadmap, and project IP.
Project materials may not be shared, reused, published, used for another client, used for AI or model training, or included in a portfolio without written authorization.
How to Apply
Please send:
1. Brief introduction and relevant full-stack experience
2. Comparable platform examples and your role
3. Preferred technology stack
4. Database, authentication, multi-portal, and permissions experience
5. Complex workflow and AI application experience
6. Image analysis experience, if applicable
7. Security and privacy experience
8. Code audit and refactoring experience
9. Experience working from existing specifications
10. Availability for Phase 1
11. Hourly rate or milestone preference
12. Confirmation that you work independently and can sign an NDA
13. Proposed Phase 1 audit approach
14. How you would keep the build practical and cost-effective
15. Whether you are interested in a potential portfolio case study, subject to approval
Please keep your application high level. Do not request the complete business concept before screening.
Next Step
The immediate goal is to select an independent senior builder for a paid technical review, define a focused MVP, and establish a practical path to a secure platform spanning the public website, three authenticated portals, AI-assisted workflows, secure data routing, and future functionality.
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