We're looking for a senior US-based developer to review our product architecture, codebase, and technical setup before launch. This is a short-term consulting role (~6–10 hours total) focused on scalability, performance, maintainability, security, and overall product readiness. Current stack includes React Native / Expo, Supabase, API integrations, web development frameworks, and automation workflows. We're looking for someone who can: • Review mobile and web application architecture
 • Evaluate backend structure, database design, and API integrations
 • Identify potential issues, bottlenecks, and security concerns
• Suggest improvements for scalability and long-term maintainability 
• Review automation workflows and system reliability
 • Assess launch readiness and best practices
 • Provide actionable technical feedback and recommendations
 • Communicate clearly and collaboratively This is not a full development role—it's a senior technical review and advisory engagement. Requirements: • US-based only
 • Senior-level experience in mobile and web application development
 • Experience shipping and scaling production products 
• Strong understanding of modern backend systems, APIs, and automation tools
 • Excellent communication skills Please include: • Relevant projects and products you've worked on 
• Years of experience
 • Areas of expertise (mobile, web, backend, automation, etc.) 
• Hourly rate 
• Availability (ASAP or within the next week)

Professional Auto Appraisals is seeking an experienced full-stack developer to add a customer onboarding portal to our existing appraisal management application. Important: We already have a working claim management/tracking system. We are not looking for a new CRM, dashboard, or claim management platform. This project is to extend our existing application and automate the client onboarding process. Developer must be comfortable reviewing and modifying an existing codebase. This is not a greenfield project. The selected developer will be extending an existing appraisal management application and integrating new functionality into the current architecture. Project Goal Create a customer-facing portal that allows a client to: * Submit claim information * Upload documents * Complete required agreements * Sign documents through DocuSign * Pay online * Automatically create a claim in our existing application after onboarding is complete Required Workflow Step 1 - Customer Intake Customer completes an online intake form from our website. The form should collect: * Name * Email * Phone number * Address * Insurance carrier * Claim number * Adjuster information * Vehicle year, make, and model * VIN * Mileage * Settlement offer amount * Lienholder information * GAP coverage information * Vehicle photos * Insurance valuation report * Supporting claim documents Step 2 - Document Generation The intake information should automatically populate our existing document templates: * Appraisal Agreement * Letter of Authorization * Right to Appraisal Request (if applicable) Step 3 - Embedded DocuSign Signing We already have a DocuSign account. Requirements: * Use the DocuSign API * Use embedded signing directly within the website/application * Auto-populate templates with intake information * Obtain signatures on the Appraisal Agreement and Letter of Authorization * Return completed documents to the application Step 4 - Online Payment After signing is complete, the customer should pay online. Requirements: * Stripe integration preferred * Payment confirmation stored in the application * Failed payment handling * Receipt generation Step 5 - Claim Creation A claim should only be created in the production claim tracker after: * Required documents have been signed * Payment has been successfully received Once those conditions are met, the system should: * Create a new claim record in the existing application * Attach all intake information * Attach uploaded files * Attach signed PDFs * Set initial status to: "New Intake - Paid" Optional Lead Tracking Prior to payment, the system may maintain a temporary lead record for incomplete or abandoned submissions. These records should not appear as active claims in the production claim tracker. File Storage The system should: * Store uploaded files securely * Store signed PDFs * Associate all files with the claim record * Google Drive integration is preferred if practical with the existing application architecture Technical Requirements Experience with: * Existing application integrations * React * Node.js * Replit deployments * PostgreSQL or similar databases * DocuSign API * Embedded DocuSign signing * Stripe integration * Webhooks * Secure file uploads * Google Drive API * Mobile-responsive interfaces Deliverables * Customer intake portal * Document automation * DocuSign integration * Payment integration * Automatic claim creation * File upload and storage * Status automation * Documentation for future maintenance When applying, please provide examples of: * DocuSign API projects * Embedded signing implementations * Stripe integrations * Workflow automation projects * Applications integrated into existing systems rather than built from scratch The ideal developer understands API integrations, workflow automation, and extending an existing application without replacing current functionality. The ideal candidate is someone who's built: SaaS applications Customer portals Payment workflows E-signature integrations Not someone whose experience is primarily brochure websites or WordPress sites.

Upwork Job DescriptionTitle: React Developer: Integrate POA&M DashboardProject Overview:I am looking for a senior React developer to add a "Plan of Action and Milestones" (POA&M) tab to an existing NIST CSF-based cybersecurity questionnaire application. The goal is to automatically capture "No" and "Partial" responses from the questionnaire and display them in a FedRAMP-compliant format.Scope of Work:Feature Integration:

About the Business I own Meet U @ The Net, an established beach volleyball league in Southern California. Website: https://meetuatthe.net The league currently runs multiple seasons per year, has strong player retention, and regularly reaches registration capacity. I am looking for a developer or small team to help modernize the business systems while providing documentation and knowledge transfer so I can eventually manage and improve the platform myself. This is not a one-time project. I intend to build the platform in phases over multiple seasons. Phase 1 Goals CRM Foundation Current data exists across: Excel Airtable Google Sheets The goal is to consolidate historical league data into a single CRM/database. Examples: Players Teams Seasons Registrations Waitlists Payments Participation history Website Rebuild Build a modern website focused on: Registrations League information Schedules Standings FAQ Mobile responsiveness SEO foundation AEO foundation Registration System Support: Individual registrations Team registrations Waitlists Coupon codes Discount codes Payment tracking Waiver System Requirements: Team captains can register teams Individual players must create their own profile Individual players must sign their own waiver Waiver tracking and status management Knowledge Transfer (Required) I do not want a black-box system. I want: Written documentation Loom walkthrough videos Live walkthrough sessions Ability to ask questions after launch The goal is to learn how the system works while it is being built. Future Phases (Not Part of Phase 1) Future projects may include: Scheduling tools Referee score entry portal Automatic standings Sponsorship CRM AI features Mobile applications The initial focus is building a strong foundation. Preferred Technologies Open to recommendations. Currently interested in: Next.js Supabase OpenAI GitHub Budget Approximately: $5,000 – $7,000 for Phase 1 Future phases expected if Phase 1 is successful. Looking For Full-stack developer or small team CRM/database experience SaaS experience Strong communication Documentation-focused Comfortable working with non-technical founders Please send: Relevant projects Technologies used Availability Pricing model Examples of documentation or client training

OVERVIEW We are a technical advisory firm that partners with VC-backed companies to design, build, and scale their engineering foundations. We embed with our clients as a core part of their technical team, not as outside consultants handing over a document, but as engineers who own the outcome alongside them. Our current client is a VC-backed company operating in the auto logistics space. They're at an exciting and critical stage: they have product-market fit, they have backing, and now they need to build the production infrastructure to match their ambitions. We've been brought in to lead that build, and we're looking for a senior full stack engineer to join us for it. This is a greenfield backend API platform built in TypeScript on Node.js with Express or Fastify, and you'd be involved from the very beginning. That means shaping the architecture, setting the patterns, and building something that will need to handle real production load in a fast-moving, operationally complex industry. The backend we're building needs to be reliable, well-structured, and built to grow. If you want to do meaningful backend work on a greenfield codebase, in a real industry with real complexity, working with a team that has high standards, this is the opportunity. WHAT YOU'LL BE BUILDING A production-grade backend API platform in TypeScript on Node.js, using Express or Fastify. Because we're starting from scratch, the early decisions carry significant weight and you'll be part of making them. API architecture, project structure, middleware conventions, authentication approach, error handling, observability, data access patterns: these are all on the table and we want engineers who have opinions about them informed by experience. Day-to-day you'll be writing and reviewing TypeScript, contributing to architecture and design discussions, collaborating with the team on Slack, and joining at least one Zoom sync per week with the broader team and client stakeholders. WHAT WE'RE LOOKING FOR - 5 to 10 years of professional software engineering experience with a strong backend or full stack background. Specifically: - Fluent in TypeScript with a solid working knowledge of the Node.js runtime, including async patterns, error propagation, and performance characteristics, not just the surface API - Hands-on Express and/or Fastify experience with real APIs built using them, a clear understanding of their trade-offs, and the ability to make informed structural decisions without needing to be guided - A track record of shipping and operating production systems, having been accountable for something running live, having handled production incidents, and thinking seriously about reliability, logging, and failure modes. - Comfort operating in a greenfield environment with some ambiguity, able to ask the right questions, help define what isn't yet defined, and take ownership of outcomes rather than waiting for a fully formed spec. - Strong English communication skills, written and spoken. We're a distributed team, async-first on Slack, and we interface directly with a client whose business is moving fast. Clear communication is as important as clean code US-based strongly preferred with meaningful overlap with US business hours required for team and client collaboration NICE TO HAVE - Cloud infrastructure experience (AWS, GCP, or Azure) - Familiarity with authentication protocols (OAuth 2.0, OIDC) - API versioning strategy experience - CI/CD pipeline experience - Domain familiarity with logistics, fleet management, or supply chain systems is a genuine bonus HOW WE WORK We are a tight team with high standards and low tolerance for vague communication or dropped balls. Slack is our primary channel, async-first with responsiveness expected during working hours. We sync on Zoom at least weekly, more often during active design and planning phases. We use Jira for our ticket management. You'll receive a Microsoft 365 account on hire for SSO access to all internal and client tooling from day one. We don't micromanage. What we do expect is proactive communication, early flagging of blockers, and the kind of ownership that comes naturally to engineers who treat a codebase as something worth getting right, not just getting done. On a greenfield project with a client at a pivotal growth stage, that distinction matters. HIRING PROCESS - Intro call (15 min) - the firm, the client, the project, your background, and your questions - Technical screen (if applicable, via Coderbyte) - Background check - standard criminal background check required for all hires, no exceptions - Offer and onboarding - Microsoft 365 account and full tooling access provisioned before day one HOW TO APPLY We read every proposal that makes a genuine effort. Please include: - A description of a production backend system you've built, including what it did, the scale it operated at, your specific contributions, and what decisions you made that you're proud of or would revisit today - Your honest assessment of your TypeScript and Node.js depth. We value specifics and self-awareness over a list of buzzwords Links to code, whether GitHub, open source contributions, a portfolio, or anything else that shows us how you think and work We work with companies at inflection points and we hold ourselves and the engineers we bring in to a high standard. If this project sounds like the kind of work you want to do, make that clear in your proposal and tell us why this domain, this stage, and this type of build appeals to you specifically.

I’m building a multi-city, multi-state food delivery marketplace app similar to DoorDash and Uber Eats, with planned nationwide expansion. The platform includes full support for English, Arabic (RTL), and Spanish languages. This is a serious long-term project with significant growth potential. Looking for a passionate US-based agency to build something great together and provide ongoing support as the business grows. Platform Overview: Four interconnected products: • Customer app (iOS + Android) • Driver app (iOS + Android) • Restaurant dashboard (web) • Admin panel (web) Core Features Needed: • Multi-city and multi-state architecture — nationwide scalable from day one • Real-time order tracking via Google Maps • Stripe Connect, Apple Pay, Google Pay, and PayPal payments • In-app wallet system • Twilio masked calling and messaging between customers and drivers • Driver and restaurant self-onboarding portals • Background check integration for drivers • Ratings, reviews, promo codes, loyalty and referral program • Scheduled orders and contactless delivery • Surge pricing and analytics dashboards • Customer support chat integration • Refund and dispute management • Push notifications • Three languages — English, Arabic with RTL, Spanish • AWS deployment What I’m Looking For: • US-based agency with full team in the United States • Experience building food delivery or marketplace apps • Dedicated project manager for this project • Milestone-based payments • Full code ownership transfers to me • Monthly maintenance and support retainer available after launch covering bug fixes, iOS and Android OS compatibility updates, and ongoing improvements To Apply Please Include: • Brief intro about your agency and team • Links to 1 or 2 relevant food delivery or marketplace apps your agency built that are currently live • Your estimated timeline and fixed price quote • Your monthly maintenance and support retainer price after the initial 90 day warranty period • Availability for a video call with your full team Budget: Open to proposals Timeline: 3 to 4 months Experience: Expert Type: Agency only

About the Role We are a funded fintech startup building a first-of-its-kind platform at the intersection of digital banking and social media intelligence. Think credit scoring — but for creators and entrepreneurs. Our platform combines financial tools, OAuth-connected social data, and a proprietary scoring engine into a seamless product used by creators, small business owners, and entrepreneurs. We are looking for a Senior Full-Stack Developer to own our entire technical stack — from server infrastructure to front-end experience — and help us scale from beta into a full product launch. This is not a freelance gig. This is a full-time salaried role with real equity potential at an early-stage company that is actively raising its seed round. You will be the technical backbone of the company. You will work directly with the founding team. What You Will Be Working On A PHP/Laravel API backend serving a multi-app ecosystem across production, staging, and demo environments A vanilla JS + HTML/CSS front-end for a consumer-facing creator dashboard, public profile pages, and a verification system A proprietary scoring engine that processes consented, first-party OAuth data from platforms including X/Twitter, Instagram, TikTok, LinkedIn, and YouTube A digital banking portal for investor and user financial management (Mercury, Dwolla, Stripe integrations) A server infrastructure running on a dedicated Hetzner bare-metal server (Ubuntu 24, Plesk, Apache, MySQL, Redis) that you will own end to end An admin dashboard for internal team operations — user management, lending, capital, communications Upcoming work: CI/CD pipeline implementation, Redis migration to internal infrastructure, TikTok and Meta OAuth API wiring, mobile-responsive passes, and banking partner integration The Stack Backend: PHP 8.x / Laravel, MySQL, Redis Front-End: Vanilla JavaScript, HTML5, CSS3 (no framework — clean component-based architecture) Infrastructure: Ubuntu 24.04, Plesk Obsidian, Apache, Hetzner dedicated server Integrations: OAuth 2.0 (X, Instagram, TikTok, LinkedIn, YouTube), Dwolla, Mercury, Twilio, Firebase, Stripe, Shopify Version Control: GitHub (org-based, branch workflow) Other: QR code generation, real-time verification systems, social data normalization What We Are Looking For Must-haves: 5+ years of full-stack development experience Strong PHP/Laravel — you can read, debug, and architect Laravel apps without hand-holding Solid vanilla JavaScript — you do not need React or Vue to build clean, fast, interactive UIs Comfortable owning server infrastructure — SSH, Linux, Plesk or cPanel, Apache config, MySQL administration Experience with OAuth 2.0 integrations — connecting to social media platform APIs is second nature Familiarity with fintech concepts — payments, banking APIs, KYC/AML flows, or financial data handling Git workflow discipline — clean commits, branch management, no cowboy pushes to main Strong written communication — you document your work, you write clear commit messages, you can explain architecture decisions to non-technical stakeholders Strong pluses: Experience at a fintech startup or financial technology company Familiarity with social media platform developer programs (X API, Meta Graph API, TikTok for Developers) Experience setting up CI/CD pipelines (GitHub Actions, Forge, Envoyer, or similar) Experience with Redis configuration and migration Any background in credit scoring, data normalization, or analytics engine architecture Prior W-2 employment experience (this is not a 1099 contractor role) What You Get Full-time salaried position — compensation discussed during interview based on experience Direct access to and collaboration with the founding team The opportunity to be the lead technical voice at a company that is actively fundraising and preparing for a full public launch A codebase that is real, live, and in use — not a greenfield project, not a prototype Remote-first culture — flexible hours, async-friendly, results-driven What This Is Not This is not a short-term project or hourly contract This is not a role where you will be handed a spec and left alone This is not a company where the tech is an afterthought — the product IS the technology

We are seeking a motivated and skilled Front-End Developer to join our apparel technology team. In this exciting role, you will play a key role in building and enhancing the next generation of operational tools that will be utilized across various departments within our organization. Your primary focus will be on creating intuitive web applications and interactive dashboards that deliver real-time insights into crucial aspects of our operations, including production performance, inventory movement, sales trends, and overall operational efficiency. As a Front-End Developer, you will collaborate closely with a diverse group of professionals, including data analysts, operations managers, product stakeholders, and back-end engineers. Your collaborative efforts will be essential in transforming complex business data into clear, concise, and actionable user experiences. You will be responsible for designing and implementing user interfaces that not only convey critical information effectively but also enhance user engagement and accessibility. This position is particularly well-suited for developers who are passionate about creating data-rich applications and who excel at building user-friendly interfaces. You will be challenged to solve complex problems related to information presentation and workflow optimization, all while employing best practices in front-end development. Additionally, you will have the opportunity to stay updated on emerging technologies and trends, allowing you to improve and innovate the applications you develop. Your contributions will have a significant impact on the organization, empowering teams to make informed decisions, improving workflow visibility, and ultimately increasing productivity in multiple areas of the business. This is a unique opportunity for a talented developer looking to make a meaningful difference in an innovative and fast-paced environment. The required skills and requirements for this position are listed below: - Strong proficiency in React, JavaScript, TypeScript, HTML5, and CSS3. - Experience developing data-driven web applications or dashboard interfaces. - Understanding of frontend architecture and reusable component design. - Experience consuming APIs and handling dynamic data within applications. - Familiarity with state management solutions such as Redux, Zustand, or similar tools. - Strong debugging and troubleshooting skills. - Experience working with Git and collaborative development environments. - Ability to communicate effectively with both technical and non-technical stakeholders. - Strong attention to detail and commitment to user experience quality.

Description We are building Cardinal Hearts, a Stanford-centered digital wellness and anonymous peer support platform designed to help students navigate romantic relationships--share experiences, seek support, access personalized resources, and foster meaningful reflection in a psychologically safe environment. The platform will be fully accessible across both mobile and desktop devices, with a seamless, intuitive experience on each. We are looking for a talented full-stack developer to build a high-resolution functional MVP/prototype with scalable frontend and backend architecture. This is not a traditional social media platform — the interaction model should feel intentional, supportive, privacy-conscious, and community-centered. --- Core Features Frontend Development We need a modern, clean, responsive application that works seamlessly across: * Mobile devices * Tablets * Desktop/laptop browsers Key features include: * Anonymous posting feed * Post creation flow * Stanford-inspired branding/aesthetic * Tagging/filter system: * “Seeking Advice” * “Just Wanted to Share” * User onboarding/login flow * Saved/bookmarked posts * Ability to “follow/save” posts for later viewing * Personal Diary feature (see below) * Responsive UI optimized for both mobile and desktop --- Community Interaction Features We want engagement to feel emotionally supportive rather than performative social media. Features include: * “I Resonated” reaction button on posts * Anonymous resonance counts visible publicly * Optional sorting/filtering by most resonated posts * Private “This Didn’t Resonate” feedback option (not visible to other users; used only for internal analytics and personalization) * Aggregate engagement signals used to improve content surfacing and recommendations --- Diary Feature (Personal Reflection System) Each user will have a **Diary**, which serves as their personal timeline of activity and reflection. Core functionality: * All public posts automatically appear in the user’s Diary, organized by date * Users can also write **private diary entries** that are never shared publicly * Clear distinction between: * Public posts (community-visible + stored in diary) * Private reflections (personal only) Diary capabilities: * Chronological timeline view of all entries * Ability to filter between public and private entries * Optional tagging of entries (e.g., reflection, advice-seeking, personal note) * Centralized place to revisit personal experiences over time --- Mood & Reflection Calendar Feature We also want a reflective mood tracking system inspired by apps like *Natural Cycles*. When users reflect or write in their diary, they can optionally select a **mood using an emoji-based system** (e.g., “Anxious 😟”, “Sad 😔”, “Calm 🙂”, etc.). Core functionality: * Users can attach a mood to each entry (optional) * Mood input should be fast and lightweight (emoji + label selection) Visualization: Users can view their data in: * Daily view (mood + associated entries) * Weekly trends * Monthly calendar or heatmap visualization of mood patterns Purpose: This feature helps users identify emotional patterns over time by connecting: * Mood states * Life events/reflections * Written posts Example: A user may notice repeated “anxious” moods on days involving a specific relationship dynamic, enabling deeper self-awareness and reflection over time. The goal is to support insight, not diagnosis — helping users better understand emotional patterns and triggers. --- Resource Library + Personalized Recommendations We are also building a curated **digital resource library** populated with materials from Stanford’s SHARE (Sexual Harassment/Assault Response & Education) office. Library may include: * Books * Articles * PDFs * Support resources * Educational materials Features: * Admin upload and management system * Categorization/tagging of resources * Personalized recommendations based on: * User posts * Diary entries * Mood data * Tag usage Recommendation system: Can initially be rules-based (no need for full AI at MVP stage) Examples: * Users expressing loneliness may be shown community/support resources * Users seeking relationship advice may receive relevant reading materials Privacy and sensitivity are critical to design. --- Analytics Dashboard (Admin/Internal) We need a basic analytics dashboard including: * Total users * Daily/weekly active users * Posts over time * Most-used tags * Most resonated-with posts * Resource engagement metrics * Repeat visitor tracking Advanced visualization requests: * Calendar view of engagement activity * Heatmap-style visualization for user engagement over time * Trend tracking for usage patterns (daily/weekly/monthly) We are open to recommendations for the best charting libraries/tools. --- Backend Development Requirements * Secure Stanford-only login/authentication * Stanford SSO preferred if feasible * Otherwise .edu-based restriction system * Database architecture and setup * Anonymous posting logic (ensuring privacy separation from identity) * User accounts and diary storage system * Saved posts/bookmarking system * Tag and category management * Moderation/reporting tools (basic MVP) * Scalable backend structure for future expansion --- Preferred Tech Stack Open to recommendations, but currently considering: * React / Next.js * Node.js * Firebase or Supabase * PostgreSQL --- Ideal Candidate * Strong full-stack web development experience * Experience building social or community platforms * Strong UI/UX instincts * Experience with authentication and secure systems * Comfortable building privacy-first products * Strong communication and fast execution mindset * Product/design thinking is a plus Bonus if you have experience with: * Anonymous social platforms * Mental wellness or student-facing products * Recommendation systems * Data visualization dashboards --- Deliverables * Functional high-fidelity MVP/prototype * Clean, documented codebase * GitHub repository handoff * Deployed staging/testing environment --- To Apply Please include: 1. Relevant portfolio/projects 2. Recommended tech stack for this build 3. Estimated timeline 4. Estimated budget range 5. Your approach to: * Anonymous posting architecture * Diary + mood tracking system * Personalized recommendation system 6. Any suggestions or improvements based on your experience We are aiming to move quickly and begin development ASAP.

We are building an AI-powered hospitality assistant for full-service restaurants. The product helps guests find the right dishes, increases average check size automatically, and reduces pressure on staff during peak hours — all with zero hardware required. What we need: • Mobile-first web app — opens in the browser, no download required • AI conversation layer using OpenAI GPT-4o or Anthropic Claude API • Owner dashboard for menu management, daily priorities, and live order notifications • Multi-tenant architecture — each restaurant’s data is fully isolated • Real-time notifications between guest interface and staff • Multilingual support: English, Spanish, Arabic • Milestone-based payments with a functional demo at each stage • Full IP transfer on project completion Required: • Live web apps in your portfolio that are currently active • Hands-on experience with OpenAI or Anthropic APIs — name the project • Multi-tenant SaaS experience • Willingness to sign NDA and work-for-hire agreement before project start