Senior React Native Engineer — Take Over & Launch a Consumer Social App We're looking for a senior React Native engineer to take ownership of an existing, fully-built consumer social media app and get it to App Store launch quality. The app already works. A previous developer built it end to end, and we have a complete, functioning codebase. What we need now is an experienced engineer to take the wheel, harden it, and ship it: tighten the design, fix the speed, clean up the backend, eliminate bugs, and make every feature work exactly as intended. This is a polish-and-launch role, not a build-from-scratch role, so we want someone genuinely strong at improving an existing codebase rather than rewriting it. This is a video-first social product — an infinite media feed, video upload and playback, user profiles, direct messaging, notifications, and engagement/retention mechanics. Think of the surface area of a modern social app, and our bar is that it should feel as smooth and fast as the top social apps on the store. Right now it's close, and we need someone to take it the last mile. What you'll own Performance & smoothness — profile and fix slow screens, janky scrolling, slow cold starts, memory issues, and re-render problems. Feed and video playback in particular must be flawless. Design polish — tighten spacing, animations, transitions, and component consistency so the UI looks and feels professionally finished. Backend cleanup — review and improve the backend: data models, queries, API/edge functions, security rules, storage, and the media pipeline. Efficient, reliable, and ready for real users. Bug elimination — hunt down and fix every bug; deliver a stable, well-tested app. Feature completeness — make sure all existing features work as envisioned, end to end, with proper edge-case and error handling. App Store launch — get it through Apple App Store review: build config, signing, App Store Connect, privacy/permissions, store technical requirements. (Android is a likely follow-on.) The stack you'll be working in Frontend: Expo + React Native + TypeScript, Expo Router (Reanimated and EAS Build/Submit a plus) Backend: a managed cloud backend with Postgres, authentication, file/object storage, realtime subscriptions, and row-level security (BaaS-style; comfortable with SQL, policies, and serverless/edge functions) Video: a managed video pipeline for direct uploads, transcoding, and adaptive HLS streaming, plus object storage and CDN delivery Notifications: push notifications (OneSignal or similar) Payments: Stripe integration experience is a plus Native device APIs: comfort with camera, media library, background tasks, location, and notifications; able to write/maintain native modules when needed Tooling: Git, EAS, environment management, basic CI/CD, crash/error monitoring (e.g., Sentry) Must-haves 4+ years building production React Native apps, with shipped App Store apps you can show us Deep, demonstrable experience profiling and optimizing React Native performance (list/image/video tuning, memoization, startup and bundle optimization) Strong with a Postgres / BaaS-style backend (schema design, SQL, security rules, serverless functions) Real experience with video upload and playback Have taken an app through Apple App Store review to a live release Excellent written English, proactive communication, and comfort owning a codebase someone else wrote Nice-to-haves Realtime/social feed and messaging at scale, Reanimated/gesture-heavy UI, Stripe or marketplace payment flows, crash analytics and feature flags, and prior experience launching a consumer/social app. How we work Small, fast-moving founding team with direct access to the founder and quick decisions. We'll start with a short paid trial task so we can both confirm fit before committing to ongoing work; strong performers move into an ongoing, long-term engagement. Some overlap with US Central time is required. An NDA is required before code access. To apply, please include: Links to 1–3 App Store apps you've built and your exact role on each A time you made an existing React Native app dramatically faster or smoother — what was slow, what you did, and the measured result Your experience with video upload/playback and with a Postgres/BaaS backend Your weekly availability and your US-Central overlap Start your reply with the word "SMOOTH" so we know you read this. Generic proposals will be ignored.

We need an app and hardware for a net raising system that is patent pending. This will be a solar powered system that will enable the user to raise and lower pickleball, tennis, padel, and volleyball nets from their phone. It will also need to be able to engage the motor to adjust the net tension by .1 lbs at a time.

We are seeking an experienced developer proficient in FlutterFlow or Bubble to create a mobile app. The ideal candidate will have a strong understanding of no-code or low-code platforms and be able to deliver high-quality solutions efficiently. Responsibilities include designing, developing, and testing the app to ensure it meets our specifications. If you have a passion for innovative app development and a proven track record, we would love to hear from you.

With all the advancements in ai, I dont need a coder but someone who knows how to run multiple Ai platforms so as to execute business plans for new ventures

Senior Mobile SaaS / Unity Entitlements Engineer for B2B Licensing Platform Project Overview: Simcoach Games develops behavioral health and educational games used by clinics, schools, clinicians, and families. We are looking for a senior technical resource to help us design and build lightweight access, licensing, and an entitlement layer for our Unity-based mobile games. Our current games are distributed through the Apple App Store and Google Play. We need to evolve from separate consumer and enterprise app versions toward a cleaner model where games can be downloaded easily, while access is controlled through parent purchases, clinic/school licenses, organization activation codes, or other entitlement rules. This is not a game development project. We are looking for someone with experience building mobile SaaS infrastructure, app-store purchase flows, backend entitlement systems, and simple admin tools. Scope of Work: The initial engagement will focus on one representative game and should produce a reusable pattern that can later be applied across our game portfolio. The expected scope includes: Recommend architecture for B2C and B2B access control across iOS and Android Design an entitlement model for organizations, users/devices, games, licenses, activation codes, expiration dates, and access rules Implement or integrate app-store purchase handling for parent/consumer unlocks Implement a clinic/school activation flow, such as organization codes or device activation Build a lightweight backend entitlement service Build a simple internal admin portal for Simcoach staff to create organizations, issue/revoke access, manage license status, and view activations Create a reusable Unity integration package or pattern that our internal developers can apply to other games Document the architecture and implementation clearly for future development Architecture must be compatible with future HIPAA compliance (encrypted data at rest and in transit, audit logging, BAA-ready cloud hosting). We will engage a HIPAA attorney separately, but the infrastructure should not create compliance debt. Advisory (Ongoing): Guide our team on App Store consolidation: merging duplicate listings, applying for Apple Unlisted App Distribution, configuring Apple Business/School Manager volume purchasing, and Google Play enterprise distribution. Recommend architecture for future integrations with ABA practice management platforms (CentralReach, Motivity, RethinkBH) via REST API/SSO. Ideal Experience: Strong mobile SaaS architecture experience Apple StoreKit and Google Play Billing experience, or experience with RevenueCat or similar tools Unity/C# integration experience Backend/API development experience using Firebase, Supabase, AWS, or similar platforms Experience with authentication, entitlements, activation codes, license management, and admin portals Familiarity with privacy-sensitive healthcare, behavioral health, or education products Ability to design pragmatic solutions for a small startup with limited engineering and support resources Helpful but Not Required: Experience with healthcare, digital therapeutics, behavioral health, edtech, or serious games Familiarity with HIPAA/FERPA-aware product design Experience with shared-device or clinic/school deployment models Experience supporting both direct-to-consumer and enterprise customers from the same mobile app What Success Looks Like: A successful engagement will give Simcoach a practical, scalable, and maintainable access model that reduces app-store confusion, avoids manual account administration, supports B2B clinic and school sales, and preserves a viable path for parent/consumer purchases. We are looking for a senior, pragmatic resource who can help us make the right architectural decisions, implement an MVP, and leave our internal team with a reusable foundation.

We are looking to do a new build of our patch bay label designer tool. Customers are currently able to pick their model of patch bay, add text labels, colorize, and group. They can then checkout and it creates print ready artwork for our team to produce. The UI is a bit clunky and there are some features we want to add such as an admin tool to add and edit labels. You can see the current tool here: https://create.traceaudio.com/

We are seeking a highly efficient, production-focused UI Designer to apply our finalized brand identity to our new personalized wellness app. Please read carefully: We do not need a creative director, UX researcher, or branding expert. Our brand identity, typography, color palette, and visual direction are 100% complete. We need a fast, detail-oriented designer (preferably working in Figma) to take our comprehensive brand guidelines and build out our main mobile app pages and static elements (like the navigation menu bar). Scope of Work: - Translate our provided PDF brand guidelines into high-fidelity mobile UI screens. - Design core application pages (Home, Playlists/Listening screens, Settings, etc.). - Design persistent static elements (e.g., bottom navigation bar, headers). - Deliver fully organized, developer-ready files. Requirements: - Expertise in Figma (or standard UI software). - Immediate availability and the ability to turn around screens quickly. - Strong attention to detail: you must follow our color hex codes, font weights, and spacing rules exactly. - A portfolio that demonstrates clean, minimal mobile UI execution (especially apps utilizing frosted glass/translucent effects). To Apply: Please start your proposal with the word "OUTFIT" so we know you read this description. Include a link to 2-3 specific mobile app projects in your portfolio that demonstrate a minimal, clean aesthetic with translucent or frosted UI elements. Do not send your entire portfolio. Let us know your estimated hourly rate and availability this week.

Position Summary The Camera Integration Software Developer plays a critical role in bridging the gap between our enterprise Video Management System (VMS) and the physical security landscape. This individual is responsible for the full lifecycle - researching, architecting, and maintaining of integrations for IP security cameras and Physical Access Control Systems (PACS). Operating with a high degree of autonomy, you will lead the technical implementation, debugging, and validation of hardware-to-software interfaces. This role requires a versatile problem solver comfortable with both high-level software development and hands-on electrical troubleshooting. As a key contributor to our engineering team, your work will directly impact the reliability and scalability of our enterprise security solutions, ensuring that our software remains compatible with the industry’s most advanced hardware.

We're building a digital signage platform that runs across Android, webOS, and Tizen devices, and we need a senior Android engineer with real embedded/signage experience to help us level it up. Must-have: - Strong Android development in Kotlin - Experience building for digital signage, smart TV, streaming devices, kiosks, or similar embedded media platfroms - Comfort with concurrency, async, multithreading, and debugging race conditions and memory issues - Experience building for 24/7 device uptime Strong plus: - Experience with the signageos.io platform - Android SoC work (Amlogic, Rockchip, Qualcomm, MediaTek) - Media3 / ExoPlayer, hardware decoders, video playback pipelines webOS or Tizen - MDM / fleet management, MQTT - Performance tuning on constrained hardware The work: Media playback, device management, content delivery, and platform reliability across a fleet of long-running devices. This is device platform engineering, not mobile app development. If you've built signage or smart TV software at scale — especially on signageos.io — please mention it up front in your proposal.

We are building a browser-based virtual trading card pack opening experience inspired by the excitement and animation style of the Pokémon TCG Pocket app. https://www.youtube.com/watch?v=GKNsrJY4D3U Users will purchase virtual packs, open them through an engaging animated experience, receive cards based on configurable rarity odds, and optionally request shipment of physical cards. We are looking for a developer or small team capable of delivering the entire project from start to finish. Core Requirements Frontend Experience The pack opening experience should feel exciting, polished, and mobile-friendly. Features include: * Mobile and desktop responsive * Pack carousel where users can scroll through multiple pack choices * All packs may visually appear similar initially * User selects a pack before opening * Animated pack opening sequence * Smooth reveal animations * Sound effects support * Epic and Legendary card reveal effects * Fast loading experience * Modern UI and UX We want an experience comparable to modern digital card-opening games. Pack Logic Users purchase a pack and receive cards based on predefined rarity percentages. Example structure: * Common * Uncommon * Rare * Vintage * Epic * Legendary Admin must be able to control: * Hit rates * Card pools * Available inventory * Pack configurations *Inventory Management System* A backend inventory system is required. Example: Common Pool: Horsey x500 Nidoran x300 Staryu x250 Legendary Pool: Mewtwo x5 Charizard x3 Lugia x2 Admin should be able to: * Add cards * Remove cards * Edit quantities * Upload card images * Enable or disable cards * View inventory remaining When a card is awarded, inventory should decrease automatically. Pack Configuration System Admin should be able to create new packs. Examples: ShadowMind Pack Retro Pack Vintage Pack Holiday Pack Each pack should have: * Custom artwork * Custom odds * Custom card pools * Active/inactive status User Accounts Users should be able to: * Create account * Login * View collection * View opening history * View owned cards * Request shipment of cards Collection System : Vault Users should have a digital collection page showing: * Cards owned * Quantity owned * Rarity * Card images * Opening history Physical Fulfillment System After opening packs, users should have the ability to request shipment of physical cards. Requirements: * Shipping address collection * Shipment request system * Admin fulfillment dashboard * Mark orders shipped * View shipment history Admin Dashboard Admin dashboard should include: * Inventory management * Pack management * User management * Shipment management * Order history * Analytics Payments Integrate Stripe / apple pay Users should be able to: * Purchase packs * View order history * Receive purchase confirmation Technology Preference Preferred: * Next.js * React * PostgreSQL * Stripe Open to recommendations if a better stack is proposed. Deliverables * Fully functioning production-ready web application * Source code * Admin dashboard * Database setup * Mobile responsive design * Deployment assistance * Basic documentation Proposal Requirements Please include: 1. Fixed price for the complete project 2. Estimated timeline 3. Similar projects completed 4. Recommended technology stack 5. Examples of gaming, collectible, loot-box, card-opening, or marketplace projects Important Please provide one total fixed-price bid for the complete project. We are looking for a long-term development partner but want a complete build quote for Version 1 of the platform. This is a real project that will move quickly for the right developer.