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

We are looking for a Senior Software Developer with excellent technical skills and outstanding interview abilities. The ideal candidate should be able to communicate clearly, think through problems in real time, and perform exceptionally well in technical discussions, coding interviews, and system design sessions. Requirements - 8+ years of professional software development experience - Strong expertise in one or more technologies such as Python, Node.js, Java, .NET, React, or similar - Solid understanding of system design, APIs, databases, cloud platforms, and distributed systems - Excellent problem-solving and analytical skills - Exceptional verbal and written English communication - Ability to explain technical concepts clearly and confidently - Strong performance in live coding, debugging, and system design interviews - Professional attitude and ability to think under pressure Responsibilities - Design, develop, and maintain scalable software solutions - Collaborate with engineering and product teams - Participate in architecture discussions and technical decision-making - Write clean, maintainable, and high-quality code - Mentor team members and contribute to best engineering practices Ideal Candidate - Performs exceptionally well in technical interviews and coding assessments. - Communicates ideas clearly and confidently. - Can discuss past projects in depth and explain technical decisions. - Demonstrates strong ownership and leadership qualities.

We’re seeking a Full Stack Engineer (mid- to senior-level) with strong expertise in Node, React, and TypeScript to design, build, and maintain the APIs, workflows, and interfaces that power the Probada platform. This is a hands-on, end-to-end role that blends backend logic, data-driven workflows, and modern, component-based frontend development. You’ll work directly with our Lead Developer and CEO to ship features that have immediate, meaningful impact in classrooms and communities. Key Responsibilities Design, implement, and maintain backend APIs and workflows using Node and TypeScript Build responsive, maintainable user interfaces in React following component-driven best practices Integrate frontend and backend components into cohesive, scalable systems Collaborate closely with designers, product managers, and engineers to deliver high-quality features Optimize platform performance, reliability, and maintainability Participate in code reviews, testing, and CI/CD processes Requirements 3+ years of professional full-stack development experience Strong proficiency in Node, React, and TypeScript Solid understanding of component-driven architecture and modular design Familiarity with Git workflows, Agile development, and CI/CD pipelines Excellent problem-solving, debugging, and communication skills Additional Preferences Experience with MongoDB, Parse Server, GraphQL, Docker, Jest, Material UI, IntelliJ IDEA, or Jira Interest or experience in edtech, workforce development, or scalable SaaS platforms

Looking for a younger male/female to react record and react to specific niches to videos that will be provided to you.(You will literally just need to authentically react and watch Shorts/Tiktoks lol.) Looking for someone in these niches with true and authentic understanding of this niche and consistently are already involved in them: - CS2 - Rocket League - Valorant - Minecraft -------------- Please apply by do the following: 1. Send instagram/Image of you 2. Do you have access to a decent microphone/camera to record? 3. Reply with what niche you truly gravitate towards(Only 1), and tell me what you actually do/know about this(Show expertise). 4. Have you ever recorded yourself in a video format before? Show me, even if its cringe. Thank you.

We are seeking a Mid to Senior-level Fullstack Developer (3–5 years of experience) to not only maintain and expand our platform (Next.js frontend + Django backend) but also guide us in fully integrating AI-powered coding assistance across the full stack. The frontend is already set up for AI-assisted editing (e.g. Cursor), and we want to evolve our backend similarly. The ideal candidate will help us transition the entire development environment, so both we and the developer can leverage state-of-the-art AI coding tools. Beyond coding, you’ll act as a mentor, helping us better understand the backend’s architecture and workflows while integrating AI-driven development tools into our process. You’ll have a key role in making our stack both stable and future-ready, with AI-assisted flexibility. The Context Our frontend was recently ported to Next.js in an ad-hoc manner, leaving certain sections in need of refactoring and stabilization. We have committed to keeping our backend in Django to leverage its robust processing capabilities. You will be the point person for bridging these two environments. Key Responsibilities -Maintenance & Stability: Perform routine maintenance and optimization across the full stack. -Bug Fixing: Identify and resolve issues within the existing Next.js frontend and Django backend. -System Reliability: Provide technical support and troubleshooting during system downtime. -Feature Implementation: Build and deploy new features, ensuring seamless integration between the AI pipeline and the user interface. Required Technical Profile -3–5 years of professional fullstack experience. -Frontend: Proficiency in Next.js and React; experience cleaning up/refactoring "messy" or legacy codebases is a plus. -Backend: Strong experience with Django (Python), specifically working with complex data pipelines or API integrations. -Mindset: A pragmatic approach to coding—balancing the need for new features with the necessity of technical debt reduction.

Senior Full-Stack Engineer — Canvas Medical EHR Lead Contract · Monthly retainer · Remote (US-based) · Ongoing -= DONT APPLY IF =- Not physically present in USA you're an AGENCY. I need 1 person. no middleman Generalists and "I can pick up Rails" applicants will not be a fit. If we can't see your projects on github dating back years (temp) you're not serious. Anyone who's thinking of making someone else do the work, go away. No time for games. Summary I'm hiring a senior full-stack engineer to lead the build-out and launch of a longevity-medicine platform: B2B formulary ordering for licensed providers, plus a patient prescription and reorder portal, built on Canvas Medical (a programmable, ONC-certified EHR). The design and product logic are set. I need someone who configures the EHR, builds the integrations, finishes the frontend, ships it, and keeps it running. This is not a learn-on-the-job seat. It is a finisher seat. What you'll own Configure and extend Canvas Medical to the prescription, formulary, and patient-portal workflow by writing Python plugins on the Canvas SDK Integrate the platform over the Canvas FHIR (R4) API, including provider registration, ordering, billing, and the patient portal Finish and ship the product frontend and bind it to the API Handle deployment, uptime, and ongoing monthly support and iteration after launch Stack Python (Canvas SDK plugins run inside the EHR) Canvas FHIR R4 API (FastAPI-based); Django ORM for data access Frontend: finishing an existing web frontend and wiring it to the API Healthcare data handling under HIPAA Must have Senior-level Python. Non-negotiable. The SDK is Python. Hands-on FHIR / healthcare data integration. This is the differentiator and the first thing I screen for. Experience with Canvas Medical or a comparable EHR or health-data platform (Medplum, Redox, Health Gorilla, or similar) HIPAA and PHI handling experience. This is a live EHR with patient data, not a storefront. Frontend competence to finish a web app and connect it to a REST/FHIR API A track record of shipping. Links to live work, not a list of frameworks. Strong async communication and reliable follow-through Nice to have Direct Canvas SDK plugin experience (Events, Data, Effects) Prior digital-health, telehealth, or pharmacy-tech product work Experience taking a stalled or unfinished product across the finish line Engagement Contract, paid on a monthly retainer Remote, US-based for this lead role Long-term: build phase first, then ongoing support. I'm looking for a durable relationship, not a one-off. To apply In your reply, include: Links to things you've shipped, FHIR and EHR work prioritized One example of a project you took from stuck to done, and what you did? Whats your favorite car? Your monthly availability in hours? Thanks

We’re looking for an experienced full-stack React / React Native developer to help maintain and grow our B2B SaaS platform. Yelli is a web and mobile platform used by restaurants and hospitality businesses for training, onboarding, communication, testing, and operational documentation. The platform is already live with paying customers, and we are currently focused on improving the product, shipping new features, and scaling the platform. This is not a greenfield project. You'll be stepping into an existing codebase and working directly with the founder to improve, maintain, and evolve the product. Tech Stack: - Node.js - TypeScript - React - React Native - MySQL - AWS (EC2, S3, CodeDeploy) - Firebase - GitLab CI/CD What You'll Be Doing: - Maintaining and improving an existing web and mobile application - Fixing bugs and troubleshooting production issues - Shipping new features and enhancements - Reviewing existing architecture and suggesting improvements - Participating in weekly planning and progress meetings - Communicating progress and blockers proactively - Taking ownership of assigned projects from start to finish What We're Looking For: - 5+ years of professional full-stack development experience - Strong experience with React and React Native - Strong Node.js and TypeScript experience - Experience working with AWS-hosted applications - Experience with MySQL and relational database design - Comfortable working within an existing codebase - Strong debugging and problem-solving skills - Excellent written and verbal English communication - Reliable, responsive, and self-directed Bonus Points - SaaS startup experience - Hospitality or restaurant technology experience - UI/UX experience - Experience leading projects or mentoring developers - DevOps or infrastructure experience !!Important!! Communication is extremely important for this role. We are looking for someone who can communicate clearly, participate in weekly video meetings, explain technical decisions in plain English, and provide consistent updates on progress and blockers. Engagement Details: - Part-time freelance to start - Approximately 10–20 hours per week - Long-term opportunity for the right person - Direct relationship with the company (no agencies or subcontracting) When applying, please include: - A brief summary of your React Native experience - A SaaS product you've worked on that is currently live - Your availability (hours per week) - Your hourly rate - Why you think you'd be a good fit for this role Please do not use AI-generated proposals. We are looking for thoughtful, personalized responses that demonstrate relevant experience.

We're a small SaaS for makers (candle/soap/craft businesses) called Makers Manager. We need a Shopify integration built. This is a focused engagement, not a build-from-scratch project: our app already exists (React + TypeScript + Supabase), and I handle most day-to-day development myself. What the integration does (this is the whole MVP): - Sales in: pull orders from each connected Shopify store into our app (webhook + a reconciliation fallback, idempotent so re-syncs never duplicate). - Products + inventory out: push product catalog and inventory levels from our app to Shopify. Our app is the source of truth for stock. When a Shopify sale comes in, we recompute stock and push the authoritative number back out. - Multi-tenant: every one of our customers connects their own Shopify store via a one-click "Connect and authorize" flow. No customer should ever have to generate an API token — this must be a proper public Shopify app using OAuth. Scope of your work: - The public Shopify app: OAuth authorization-code flow, secure per-workspace token storage (server-side only, encrypted), connect/disconnect. - Orders-in and inventory/products-out sync (GraphQL Admin API; inventorySetQuantities for per-location stock). - SKU matching, with unmatched line items surfaced for the user (never silently dropped). - Compliance to pass review: protected-customer-data request/attestation and the three mandatory GDPR webhooks (customers/data_request, customers/redact, shop/redact). - I'll build the UI and the CRUD-y pieces myself. You must have (please don't apply otherwise): - Shipped at least one public Shopify app that passed Shopify's app review. Include a link or the app name. This is the #1 requirement — I need someone who's already done the OAuth + protected-data + compliance path, not learning it here. - Real experience with the Shopify Admin GraphQL API, webhooks (HMAC verification), rate-limit/backoff, and the Inventory API (per-location levels). - Comfortable with a Postgres/Supabase backend and row-level security for multi-tenant data isolation. Nice to have: inventory/COGS domain experience; prior maker/commerce tools; Etsy or other marketplace APIs (we'll do those next). How we'll work: - Fixed-price, milestone-based. The first step is a small paid trial task (a few hours): stand up the OAuth handshake against a Shopify dev store and store a token securely. If that goes well, we do the full build in milestones. - I'm responsive and technical, so you won't be waiting on me or guessing at requirements — there's a detailed spec ready to share.

SHOPIFY CUSTOM APP MIGRATION — LIFT-AND-SHIFT, NO DEVELOPMENT I'm looking for an experienced developer to perform a clean lift-and-shift migration of two existing custom Shopify apps from my current development agency's hosting infrastructure onto hosting that I own and control. This is purely a migration job. No new features, no code changes, no enhancements. The apps work as intended in their current state — I simply need them moved. THE TWO APPS BEING MIGRATED 1. A custom currency recorder app used for dual-currency (KYD / USD) transaction reconciliation in our Shopify store. 2. A custom Shopify POS UI extension that integrates with our in-store loyalty program (Jericommerce). Both apps are currently live and in operational use. They cannot go dark, even briefly, during the migration. WHAT I NEED FROM YOU - Coordinate with my current developers to obtain the source code, environment variables, deployment configurations, and any other materials needed to redeploy the apps on new infrastructure. - Recommend a target hosting environment that makes the most sense long-term for this kind of workload (e.g. Render, Heroku, AWS, DigitalOcean) and explain why. - Stand up the new hosting environment under accounts that I own. - Deploy the apps onto the new hosting in a staging state, run them in parallel with the existing deployment, and confirm they are functioning identically to the current production version. - Confirm with me, in writing, that the migrated apps are fully functional before any cutover takes place. I will not authorize the cutover until you have demonstrated the new deployment works as expected. - Execute the cutover — switching webhook endpoints, DNS, Shopify app URLs, or any other relevant routing — in a way that produces zero downtime or operational disruption. - Verify all Shopify connections (webhooks, OAuth, app proxies, POS UI extension registration, etc.) are correctly wired to the new hosting after cutover. - Document the new deployment so I have a clear record of where each app lives, how it is accessed, how the environment is configured, and how to maintain it going forward. WHAT I AM NOT LOOKING FOR - No new features. - No code refactoring. - No "improvements" to the apps. - No exploratory audit or rebuild. - The apps work. They just need to live somewhere else. If you see something in the codebase you'd genuinely recommend addressing, flag it to me separately — but do not change it as part of this engagement. Migration first, anything else later, only if I ask. WHO YOU'LL BE COORDINATING WITH This migration involves three parties: 1. You (the migration contractor). 2. My current development team (who will provide source code and deployment details). 3. Me (overseeing the engagement and approving the cutover). You will need to be comfortable coordinating with my current developers professionally to obtain what you need from them. The relationship is winding down, but the handover should be cordial and efficient. I will introduce you to them directly once we have an agreed scope and timeline. WHAT I'M LOOKING FOR IN A CONTRACTOR - Strong experience with Shopify custom apps (private apps, public apps, app extensions, POS UI extensions). - Strong experience with cloud hosting and deployment (Render, Heroku, AWS, DigitalOcean, or equivalent). - Experience with zero-downtime migrations and parallel-deployment cutover patterns. - Comfortable working with code you did not write and deploying it without making changes. - Direct, honest communication style. I do not need to be managed or shielded — I just need clear updates and reliable execution. - IP ownership: all deployment configuration, hosting accounts, environment variables, and documentation produced under this engagement belong to me. QUOTE AND PROPOSAL Please provide: - A fixed-price quote for the full migration as described above. - Your recommended hosting environment and rationale. - An estimated timeline from kickoff to cutover. - A brief description of your relevant prior experience (Shopify app migrations, hosting transitions, or similar). - Any clarifying questions you have before quoting. Looking forward to hearing from you.

We are a medically backed, pre-seed healthtech platform preparing for an immediate enterprise pilot deployment. Our core user interface, interactive data features, and content architecture are functionally built utilizing modern AI-assisted development tools. We are seeking a senior, hands-on engineer with specific healthtech deployment experience to serve as our Execution Contractor for an immediate hardening sprint. You will own the backend security architecture, external cloud infrastructure configuration, and technical compliance validation required to transition our high-fidelity MVP into a secure production environment. What You’ll Do Harden Backend Security: Transition frontend route guards into strict, server-side authentication and authorization boundaries across all data-access paths. Architect Secure Infrastructure: Migrate core data architectures out of staging environments and securely provision an external, HIPAA-compliant cloud database tier. Manage Vendor & Compliance Workflows: Audit our technical vendor stack to securely embed enterprise API protocols, ensuring strict data handling and compliance alignment across all integrated platforms. Validate & Sign-Off: Run edge-case testing and performance audits to completely secure data handling pipelines, delivering a technical go/no-go sign-off for our upcoming pilot cohort. The Technical Stack Frontend: React 18+, TypeScript Backend: Node.js, Express.js Database/ORM: PostgreSQL via Drizzle ORM Environment/Tooling: WebSockets, Enterprise AI APIs, Secure Cloud Infrastructure (AWS / Supabase) Who You Are A seasoned full-stack or backend engineer with a proven track record of successfully deploying applications into live clinical, medical, or heavily regulated environments. Deeply knowledgeable in server-side encryption, data pseudonymization, and secure cloud networking. Highly comfortable inheriting, auditing, and optimizing architectures built alongside AI-assisted development workflows. An execution-focused builder who thrives in high-velocity sprints and values absolute production discipline. To Apply: Please submit your proposal directly through Upwork with a brief summary of your healthtech deployment experience, specifically highlighting your experience with secure data pipelines, PostgreSQL, and HIPAA configurations.