# Senior Full-Stack Developer/Technical Consultant
## Sentinel MVP Beta Support & Multi-Project Technical Leader

**Contract Type**: Full-time or Part-time Contract (30-60 day intensive, then ongoing)
**Budget**: $50-100/hour (no retainer options)
**Location**: Remote (US timezone preferred)
**Start Date**: Immediate
**Duration**: Initial 30-60 days intensive, potential for long-term

### Company Overview
We're a technology company building innovative AI-powered solutions across multiple industries. We just launched **Sentinel MVP** - a comprehensive legal practice management system - into beta testing yesterday (August 2025). This AI-powered platform includes document analysis, workflow automation, case management, and integrations with legal services.

We also develop several other projects including a healthcare LIMS system, health optimization platforms, and AI-driven personal assistant systems, all using modern AI development tools like Claude Code and Cursor.com.

### The Opportunity
We're seeking a **Senior Full-Stack Developer/Technical Consultant** to provide immediate support for our Sentinel MVP beta launch while also contributing to our other projects as needed. This is a unique consulting role where you'll provide strategic technical guidance and help orchestrate AI-assisted development across multiple innovative platforms.

**Why This Role Is Exciting:**
- Support a brand-new beta launch with active users testing NOW
- Work across multiple cutting-edge projects (legal tech, healthcare, AI systems)
- Use modern AI development tools (Claude Code, Cursor.com, n8n)
- Direct impact on real users from day one
- Expand into leadership roles across our project portfolio

### Critical Phase: Sentinel MVP Beta Support (HIGHEST PRIORITY)

**We launched Sentinel to beta testers yesterday!** Your immediate focus will be:

**Phase 1: Beta Fire Support**
- Monitor beta user feedback and issues in real-time
- Rapidly diagnose and guide fixes for critical bugs
- Update documentation based on user confusion points
- Ensure system stability during active testing

**Phase 2: Rapid Iteration**
- Implement high-priority fixes based on beta feedback
- Enhance features causing user friction
- Optimize performance bottlenecks discovered in testing
- Guide UI/UX improvements based on real usage patterns

**Phase 3: Beta Expansion Preparation**
- Prepare system for larger beta cohort
- Document all fixes and improvements
- Create onboarding materials for new beta users
- Establish long-term support processes

### About Sentinel MVP (Currently in Beta)

**What's Already Live:**
- ✅ AI-powered document analysis for legal documents
- ✅ Visual workflow automation builder
- ✅ Complete case and client management system
- ✅ OAuth integration (Google/Microsoft)
- ✅ Mock Litify API integration
- ✅ Email/SMS notification system
- ✅ Attorney and client portals with role-based access

**Active Beta Testing Scenarios:**
- Integration testing with OAuth connections
- Workflow automation with AI analysis
- Multi-user data isolation verification
- Document upload and analysis workflows
- Email/SMS notification delivery

**Tech Stack:**
- **Frontend**: HTML5, CSS3 (Tailwind), JavaScript (Alpine.js), Firebase Hosting
- **Backend**: Firebase (Auth, Firestore, Functions)
- **AI**: OpenAI API for document analysis
- **Integrations**: SendGrid, Twilio, OAuth2, Mock Litify API
- **Automation**: n8n workflows

### Your Primary Responsibilities

#### 1. **Sentinel MVP Beta Support (CRITICAL - First 30 Days)**

**Real-Time Beta Management:**
- Monitor beta testing feedback channels
- Triage and prioritize reported issues
- Guide rapid bug fixes and improvements
- Communicate with beta testers on fixes

**Technical Issue Resolution:**
- Debug integration failures (OAuth, email, SMS)
- Fix data isolation issues between users
- Optimize AI document analysis accuracy
- Resolve workflow automation bugs

**Documentation & Training:**
- Update beta user guide based on feedback
- Create video tutorials for complex features
- Write technical documentation for fixes
- Develop FAQs from common issues

#### 2. **Healthcare LIMS Consulting (Secondary Priority)**
- Review architecture for production readiness
- Guide HIPAA compliance improvements
- Advise on facility data isolation
- Optimize complex laboratory workflows

#### 3. **Cross-Project Technical Leadership**
- Provide architecture guidance across all projects
- Establish AI development best practices
- Create reusable patterns and templates
- Mentor on modern development approaches

#### 4. **AI Development Process Optimization**
- Structure effective prompts for Claude Code and Cursor
- Guide n8n workflow implementations
- Establish testing strategies for AI features
- Document patterns for future development

### Other Projects You'll Contribute To

**Healthcare LIMS System (Production-Ready)**
- **Status**: 90% complete, needs production deployment guidance
- **Tech**: React, Node.js, PostgreSQL, GCP
- **Focus**: HIPAA compliance, data isolation, performance optimization

**Telion Health: Senior Care Platform (Mid-Priority)**
- **Status**: Pre-launch planning complete
- **Tech**: Elation Health EMR, CareSimple RPM, telehealth integration
- **Focus**: Medicare billing integration, facility onboarding

**Physiome Health: Health Optimization Platform**
- **Status**: 24-week development roadmap ready
- **Tech**: Firebase, PostgreSQL, OpenAI o3 model
- **Focus**: Direct-to-consumer health tracking and AI insights

**Meta Assistant: Personal AI System**
- **Status**: Architecture complete, implementation ready
- **Tech**: React Native, CrewAI, n8n, multi-agent system
- **Focus**: Life automation through coordinated AI agents

### Required Qualifications

**Must-Have Technical Skills:**
- **5+ years full-stack development** with production applications
- **Firebase expertise** (Auth, Firestore, Functions, Hosting)
- **JavaScript/Node.js proficiency** including modern frameworks
- **API integration experience** (OAuth, webhooks, REST)
- **AI/ML integration experience** (OpenAI API preferred)
- **Debugging complex systems** with multiple integrations

**Beta Testing & Launch Experience:**
- Managed beta programs for SaaS applications
- Real-time issue triage and resolution
- User feedback collection and prioritization
- Rapid iteration based on user behavior
- Documentation creation for technical and non-technical users

**Preferred Qualifications:**
- Legal technology or practice management systems
- Healthcare compliance (HIPAA) experience
- n8n or workflow automation tools
- AI development tools (Claude, Cursor, Copilot)
- Mobile development (React Native)

### What Makes You Perfect for This Role

You're the right fit if you:
- ✓ Thrive in fast-paced beta environments with real users
- ✓ Can context-switch between multiple projects efficiently
- ✓ Excel at debugging complex integration issues
- ✓ Create documentation that actually helps users
- ✓ Understand AI-assisted development workflows
- ✓ Communicate effectively with non-technical stakeholders
- ✓ Take ownership of problems and drive solutions
- ✓ Are available for immediate start (beta is live NOW!)
- ✓ Comfortable signing NDA and invention assignment agreements

### What We Offer

**Compensation Options:**
- **Hourly Rate**: $50-100/hour based on experience
- **Performance Bonuses**:
- $2,000 for successful beta stabilization
- $5,000 for successful V1.0 production launch

**Work Arrangement:**
- **100% Remote** with flexible hours
- **Immediate Start** - beta users are actively testing
- **Direct Communication** with founders
- **Growth Opportunity** into CTO/Lead Architect role

**Professional Benefits:**
- Lead multiple innovative projects
- Work with cutting-edge AI development tools
- Build your portfolio across legal tech, healthcare, and AI
- Shape products used by real professionals
- Learn and implement modern development practices

### How to Apply

**Please submit a proposal including:**

1. **Cover Letter** addressing:
- Your experience with live beta support
- A specific example of rapid issue resolution
- Your availability to start THIS WEEK

2. **Relevant Experience**:
- Beta testing or launch support examples
- Firebase/Firestore production applications
- AI integration projects (especially OpenAI)
- Multi-project management experience

3. **Technical Approach**:
- How would you set up beta monitoring?
- Your process for triaging user-reported issues
- Experience with similar tech stacks

4. **Logistics**:
- Can you start within 48 hours?
- Hours available per week (need 25-40 for first month)
- Timezone and working hours
- Rate expectations

5. **Legal Requirements**:
- Willing to sign NDA and invention assignment agreement?
- Comfortable with IP assignment for work product?

6. **Quick Assessment**:
Based on the Sentinel beta guide, what would you monitor first?

### Screening Questions

1. **Beta Experience**: Describe your most challenging beta support experience. How did you handle critical issues while users were actively testing?

2. **Firebase at Scale**: What's the largest Firebase application you've worked on? What were the main challenges?

3. **AI Integration**: Have you integrated OpenAI or similar APIs into production applications? What considerations did you have?

4. **Multi-Project Management**: How do you context-switch between different projects while maintaining quality?

5. **Immediate Availability**: The beta is live now. Can you dedicate 30-40 hours/week starting this week?

### Interview Process

**Step 1: Application Review** (Within 12 hours)
- Quick review of your proposal
- Focus on beta/launch experience

**Step 2: Technical Call** (Within 24 hours)
- 30-minute discussion about Sentinel architecture
- Review your approach to beta support
- Discuss immediate availability

**Step 3: Legal Agreements** (Before paid trial)
- Sign NDA (Non-Disclosure Agreement)
- Sign Invention Assignment Agreement
- Confirm understanding of IP requirements

**Step 4: Paid Trial** (Start within 48 hours)
- 4-8 hours reviewing Sentinel beta
- Identify top 3 issues and solutions
- Create initial action plan

**Step 5: Full Engagement** (By end of week)
- Start full-time beta support
- Access to all systems and documentation
- Daily standup with founders

### Why Work With Us?

**Immediate Impact**: Beta users are testing RIGHT NOW. Your work directly affects real legal professionals using the system today.

**Diverse Projects**: From legal tech to healthcare to AI assistants - work on cutting-edge solutions across industries.

**Modern Development**: We embrace AI-assisted development while maintaining high code quality and user experience standards.

**Growth Potential**: This role can expand into technical leadership across our entire portfolio of innovative projects.

### Next Steps

**The Sentinel beta launched yesterday and we need support NOW!**

If you're excited about jumping into an active beta, working across multiple innovative projects, and using modern AI development tools, we want to hear from you today.

Submit your proposal now - we're reviewing applications immediately and conducting interviews this week.

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**Keywords**: Firebase, Firestore, Beta Testing, AI Integration, OpenAI, Legal Tech, SaaS, JavaScript, Node.js, OAuth, SendGrid, Twilio, Claude, Cursor, n8n, Healthcare, React, Technical Consultant

We are seeking an experienced Python developer who can assist us with urgent fixes on our web application. The ideal candidate should have a strong background in Python programming and web development. You will be responsible for debugging, optimizing, and implementing new features. This role requires immediate availability, as we need the issues resolved as soon as possible. If you are passionate about coding and problem-solving, we would love to hear from you!

File Upload & Handling (PDF, Image files)

Cloud Storage Integration (e.g., OneDrive, Google Drive, S3)

JSON Parsing & API Communication

UI/UX Design (clean, responsive interfaces)

Prompt Engineering (structured output)

Deployment (Firebase, Vercel, Supabase, or custom server)

Secure Data Handling & Basic Auth

Fast, Independent Development & Clear Communication

We are seeking a highly experienced software engineer based in the United States, with 6-8 years of professional coding and project management experience. The ideal candidate should have a proven track record of working directly with individual clients on a variety of projects.

While your primary expertise should focus on one or two specific technologies, you must be open to learning new tech and adaptable to evolving project requirements. Excellent communication skills in English are essential, as this role involves client interactions and collaborative discussions.

This is a part-time opportunity, approximately 4-5 hours per week, with compensation exceeding $5,000–$7,000 USD per month, or even more depending on your expertise and contributions. It’s a great chance for a software engineer in the U.S. looking to supplement their income during spare time while working on interesting and diverse projects.

Note: The hiring process includes a code challenge (estimated 4–8 hours) and an interview.

We are seeking experienced freelancers to assist with conducting interviews as part of our recruitment process. The ideal candidates should possess strong communication skills and the ability to evaluate candidates effectively. You will be responsible for preparing interview questions, facilitating discussions, and providing feedback on candidates' performances. This is an excellent opportunity to contribute to our hiring efforts on a freelance basis.

Interviews will follow a structured format, including reviewing code challenges and running LeetCode-style tests with candidates. You’ll be expected to turn on your camera during interviews to ensure clear and professional communication. As you’ll be representing our company, we ask for a high level of professionalism in every interaction.

Requirements
- Experience with ExpressJS, Postgres and modern web technologies.
- Strong communication and interpersonal skills.
- Communicate well in English.

Research Assistant Needed to Find Crypto-Compatible Dropshipping Suppliers

We’re launching a next-generation ecommerce marketplace — a hybrid of Shopify and Alibaba — built entirely around cryptocurrency payments (BTC, ETH, USDC, and more).
Unlike traditional platforms, our system eliminates banking barriers and opens the door to fast, low-fee international transactions — but this only works in crypto-friendly regions.
Countries like China, India, and Turkey have strict regulations around crypto payments, so we’re focusing on identifying top-tier suppliers in countries such as:

Malaysia
Brazil
Taiwan
Mexico
UAE
South Africa
And other crypto-permissive regions

Your Role:
We’re looking for a detail-oriented virtual assistant or researcher to:
Identify dropshipping or wholesale suppliers in the above countries

Collect and organize supplier info in a Google Sheet or Excel file, including:
• Business Name
• Website
• Email
• Country
• Product Category
• Crypto-friendly (Yes/No — based on site info or contact)

Reach out using a provided script

Log any quality replies or leads into the document for follow-up

Bonus Points If You Have:
Experience with dropshipping, ecommerce sourcing, or supplier outreach

Knowledge of cryptocurrency or blockchain basics

Prior work with global B2B directories (e.g., AliExpress, Faire, DHgate, GlobalSources)

Time Commitment:
We’re aiming for 50–100 leads to start, with potential for ongoing work based on results.
If you’re proactive, reliable, and ready to help us build something cutting-edge — we’d love to hear from you.
Please start your application with “CryptoSupply” so we know you read the full job post.

. Introduction & Project Vision

We are developing a next-generation mobile social platform for iOS and Android, uniquely blending live interaction with local, peer-to-peer commerce. Our vision is to empower users to not only connect through shared live experiences but also to buy and sell products within their trusted, local social circles.

We are seeking an experienced individual developer or an agile development agency to partner with us on the technical execution of this ambitious MVP.

2. Roles & Responsibilities

Please note that we have an in-house UI developer. Their responsibility will be to provide high-fidelity mockups (e.g., in Figma), all necessary design assets (icons, fonts, images), and a comprehensive style guide.

The selected development partner will be responsible for the technical and functional implementation of the application based on these provided designs. The scope of your work does not include visual design, UX research, or asset creation.

3. Scope of Work: Core MVP Features

The MVP will integrate three primary pillars: Social Interaction, Live Streaming, and Local Commerce.

A. Core Social & Authentication

User Authentication & Profiles: Secure sign-up/login (email/password, Google/Apple). User profiles with photo, bio, etc.

B. Live Interaction & Streaming

Live Streaming Engine: Integration with the Agora SDK for users to "Go Live."

Real-Time Engagement: Live chat and animated reactions within streams.

Co-Watching: Ability for viewers to join streams, with an optional feature for the host to invite a viewer to co-broadcast.

Content Feed: A main feed showing live streams and product listings from friends.

C. Marketplace & Local Commerce

Product Listings: Users can create product listings with a name, description, price, videos, and photos.

Location-Based Discovery:

The app must request and handle user location permissions.

Users can discover products from friends and other sellers "nearby" (e.g., within a user-defined radius on a map or in a sorted list).

Payment Processing:

Integration with Stripe Connect is mandatory.

The system must handle onboarding sellers, processing payments from buyers, and routing funds correctly between parties.

On-Demand Local Delivery:

Integration with the DoorDash Drive API.

After a purchase, the buyer should have the option to have the item delivered via DoorDash.

The system must be able to get delivery quotes, schedule a driver, and provide basic tracking status updates to the buyer and seller.

Order Flow: A simple checkout process and a basic order history view for both buyers and sellers.

4. Proposed Technology Stack

Mobile Frontend: Flutter OR React Native. We invite you to propose the framework you believe is best suited for this project's demands.

Real-Time Engagement: Agora SDK

Backend API: Node.js with the NestJS framework (using TypeScript)

Database: PostgreSQL (familiarity with its PostGIS extension for geospatial queries is highly desirable).

Authentication & Storage: We are strongly inclined towards using Supabase for its integrated solution.

Deployment: The backend should be containerized using Docker and deployed on a modern cloud service (e.g., AWS Fargate, Google Cloud Run).

5. Expected Deliverables

Full source code for the mobile application (iOS & Android) and backend API.

Setup and configuration of the database and all third-party service integrations.

Clear documentation for the architecture, APIs, and deployment process.

Final application successfully submitted to the Apple App Store and Google Play Store.

6. Proposal Requirements

Interested parties should submit a proposal containing the following:

Introduction & Portfolio: A brief introduction to you or your team. Please provide links to projects demonstrating experience with Flutter/React Native, e-commerce platforms, payment gateway integrations (Stripe), and third-party logistics APIs.

Framework Recommendation & Justification: Clearly state whether you propose using Flutter or React Native. Provide a strong justification for your choice, specifically addressing the challenges of building a high-performance, interactive app with complex UI, video, and map components.

Technical Approach: A high-level overview of how you plan to architect the application, particularly the integration of Stripe Connect, DoorDash Drive, and the location-based services.

Team Composition: Who would be working on this project and what are their roles/experience?

Estimated Timeline & Milestones: A detailed project plan with key milestones, acknowledging the increased complexity of the commerce and delivery features.

Detailed Cost Breakdown: A clear cost estimate. We are open to fixed-price project bids or phased/milestone-based payments.

Questions: Any questions you have for us.

Employment Type: Full-time Contract (40 hours/week, Monday-Friday)
Duration: 3-6 months with potential for extension

We're building a cutting-edge AI-powered information retrieval and synthesis platform that combines real-time web search, vector databases, and large language models to deliver accurate, cited responses to user queries. You'll join a team working on advanced RAG (Retrieval-Augmented Generation) systems with sophisticated content processing pipelines.

Role Specializations Available:
Role A: Backend Systems & Integration Specialist

Review and merge pending pull requests
Ensure code quality and system integration
Performance optimization and monitoring setup

Role B: Frontend & User Experience Engineer

Develop React-based user interface
Implement responsive design and user interactions
Integrate with backend APIs and handle real-time updates

Role C: Platform & Infrastructure Engineer

Complete end-to-end system integration
Implement production monitoring and alerting
Performance testing and optimization

Required Technical Skills:

Backend: Python 3.12+, FastAPI, asyncio, SQLAlchemy/Pydantic
Frontend: React 18+, TypeScript, Modern CSS (Tailwind preferred)
Databases: Vector databases (Qdrant/Pinecone), Redis caching
AI/ML: OpenAI API integration, embedding models, RAG architectures
Infrastructure: Docker, AWS (EC2, ECR, S3, CloudWatch), GitHub Actions
Testing: pytest, integration testing, performance testing

Preferred Experience:

5+ years full-stack development experience
Experience with AI/ML platforms and LLM integration
Knowledge of search systems and content processing
Production experience with microservices architecture
Strong async programming background

What We Offer:

Competitive hourly rate based on experience
Opportunity to work with cutting-edge AI technology
Direct impact on product development and architecture

Application Requirements:

Portfolio demonstrating relevant technical experience
Available for immediate start
Commit to consistent 8-hour daily availability (Mon-Fri)
Strong communication skills for remote collaboration

We are building a next-generation legal support platform that connects law firms to critical services like court filings, records retrieval, subpoena preparation, and investigations. Our internal fulfillment engine is operational. What we need now is the foundational middleware and API layer that makes those services accessible to external platforms.

We are looking for a hands-on full stack developer who can build this from the ground up. You will take the lead on architecture, development, and implementation. This is a zero-to-one build, supported by a product lead with deep legal tech experience, but you will be the primary technical driver.

What you’ll be building:

A middleware/API platform using .NET and modern web architecture
Job intake endpoints that receive structured requests from various systems
Validation and normalization logic for service types, jurisdictions, and document requirements
Credential and authentication management (user-supplied court credentials)
Routing layer to forward jobs into our fulfillment engine
Webhook system for outbound job status updates
Lightweight internal dashboard or tooling if needed

What we’re looking for:

Strong experience in .NET and modern web development (frontend + backend)
Ability to design and build scalable APIs from scratch
Comfort working independently without a large engineering team
Clear communication and documentation skills
Bonus: Experience in legal tech, court systems, or service-based platforms

We are seeking a talented developer to assist in building a Natural Language Processing (NLP) based human communication application. The app will enable humans to respond to questions via voice input, with responses being accurately documented. The ideal candidate should have experience in voice recognition, NLP technologies, and app development. If you are passionate about improving patient communication through innovative technology, we want to hear from you!