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Posted 4 days ago
  • Hourly: $50.00 - $125.00
  • Expert
  • Est. time: 1 to 3 months, 30+ hrs/week

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.

  • Hourly
  • Intermediate
  • Est. time: 1 to 3 months, Less than 30 hrs/week

We are looking for 2-3 AI engineers/developers to help us build/complete an AI go-to-market (GTM) tool that looks at both structured and unstructured data, runs it all through our AI engine, and provides insights and recommendations straight to sales people. The tool is able to handle large volumes of data and provide actionable insights for business decision-making. Our engine consists of a prioritization algorithm, pattern matching and sentiment analysis. We use our recommendation engine to deliver the output (insights) straight to our tool which is "Apple-simple", intuitive and gamified. No more sales time wasted on looking at dashboards and trying to agree on which insights are important and which should be acted on. What you'll do Own features end-to-end across theFastAPI backend (IEngine) and Next.js 15 / React 19 frontend— from Claude prompt design to UI polish. Extend the intelligence pipeline: meeting ingestion (Google Drive + Deepgram realtime), Claude-driven action card generation, Neo4j relationship graph, and Supabase-backed state. Build customer-facing dashboard surfaces — deals, gamification, coaching, trust graph — with TypeScript, Tailwind, shadcn/ui, and D3. Operate WebSocket transcription sessions and async job pipelines reliably under real meeting load. Instrument with Sentry, harden auth (NextAuth :left_right_arrow: JWT :left_right_arrow: FastAPI service-to-service), and keep deploy pipelines green. Build with simulators: when you can't test against live meetings, generate realistic synthetic transcripts through our simulator service. Stack you'll work in Backend: Python 3.11, FastAPI, Uvicorn, PyJWT, Anthropic SDK, Deepgram, Neo4j, Supabase (Postgres + realtime), WebSockets Frontend: TypeScript, Next.js 15 (App Router), React 19, NextAuth 5, Tailwind, shadcn/ui, D3, Stripe Infra: Fly.io, GitHub Actions, Sentry, Supabase AI: Claude (Opus/Sonnet) for transcript analysis, action card generation, and agentic dev workflows What we're looking for 4+ years building production web applications, ideally across Python and TypeScript. Comfort designing and shipping features against an LLM API — prompt iteration, structured outputs, evals, cost/latency tradeoffs. Real Claude or OpenAI production experience required. Experience with multi-tenant SaaS patterns, JWT auth, and one or more of: graph databases, realtime systems, audio/transcription pipelines. Comfort with AI-assisted development workflows (Claude Code, Cursor, etc.) — not just as a code-completion tool, but as a way to plan and ship features. Bias toward shipping. Small surface area, high ownership, no committee.

  • Fixed price
  • Expert
  • Est. budget: $4,000.00

What this is: I'm the founder of a working AI SaaS platform (FastAPI/uvicorn backend, React/Vite frontend, deployed on AWS). The product pipeline is built and live! I need an experienced engineer to build the authentication, payments, and usage-entitlement layer that gates the product behind login and paid usage. You'll work against a runnable stub repository (real routes + data shapes, proprietary internals removed) - so you can build and test the full layer without ever touching the core IP, and afterwards - I will merge your work into the production app! Scope: • Auth (Clerk): signup/login, session lifecycle, backend session/JWT verification, inject a validated `user_id` into protected endpoints. • Payments (Stripe): Checkout for purchasing usage credits, plus a webhook that credits the user's ledger on successful payment. The webhook MUST be signature-verified, idempotent (Stripe retries-credit exactly once), and reconcilable (handle webhook-failed-but-payment-succeeded). • Entitlement ledger (the core): a credit balance per user with atomic check-and-decrement (two concurrent requests must never double-spend) on PostgreSQL. A `check_entitlement(user_id, ...)`gate that expensive endpoints call before doing paid work. • Server-side route gating: enforce entitlement on every paid endpoint (not just hidden in the UI); clean 401/402/403 responses. • Frontend integration (React): login/signup UI, buy-credits/checkout flow, balance display,graceful "out of credits" states, wired to the above. • Tests for the money-critical paths (webhook idempotency, atomic decrement, gating-bypass attempts). Stack you'll work with: Python 3.11, FastAPI, Pydantic, uvicorn (Linux). React + Vite, Tailwind. PostgreSQL. Clerk. Stripe. Who I'm looking for: Someone who has shipped this exact kind of system to production before. In your proposal, briefly tell me: 1. How you ensure Stripe webhook idempotency and handle reconciliation when a webhook fails but payment succeeded. 2. How you'd implement the atomic credit check-and-decrement so concurrent requests couldn't double-spend. 3. A relevant production system you've built (Stripe + auth + usage metering ideally). *I'd much rather a short, specific proposal - than a long generic one!* Working with me: I'm an engaged founder who genuinely enjoys building, and I want this to be a good experience for both of us! I'm responsive, communicate clearly, and I respect your expertise - because you're the specialist here,and I'm hiring you because you know this much better than I do! I'm not a micromanager and I'm not nitpicky - I just want the end results to be solid! I review in milestones, asking questions because I like understanding the work (not because I'm second-guessing you), and I make decisions quickly so you're never stuck waiting on me! The scope is already well-defined (detailed spec + a runnable stub repo on engagement), so you're not pricing around a vague, shifting target - it's a clean, bounded build. I care about getting the money-handling pieces right, and I'm betting you do too - if that resonates, I think we'll work well together! IP / engagement: A mutual NDA + IP-assignment (work-for-hire) before repo access. You build against stubs; you won't receive the proprietary pipeline. Work is milestone-based, fixed-bid preferred. To apply: Answer the three questions above + share 1-2 relevant examples, and ballpark your timeline and milestone structure (suggested: auth → payments+webhook → ledger+gating → frontend → tests/docs)!

  • Fixed price
  • Intermediate
  • Est. budget: $15,000.00

DataSci Technologies, Inc. is an enterprise software C-Corp. We own our domain (datascitechnologies.com) and have finalized our independent institutional asset valuation. We are seeking an elite, Expert-level Full-Stack Product Architect / Fractional CTO to build the V1 / MVP layout of our proprietary predictive AI platform, the DST Codex, from the ground up. The Product & Target Audience: The DST Codex is a secure, high-end portal built specifically for institutional asset management firms and real estate conglomerates managing $250M to $10B+ in AUM [1.1]. The platform maps out, quantifies, and visualizes hidden operational risk metrics—known as "Shadow Variables"—to protect institutional capital. The user interface must look like a premium, dark-mode institutional banking terminal. Required Technical Scope (Full Lifecycle Build):Infrastructure & Security: Secure database architecture setup using AWS or Google Cloud Platform with enterprise-grade encryption. Front-End & Interface: Building a pristine, highly aesthetic, dark-mode responsive dashboard layout (React, Vue, or enterprise visual frameworks like WeWeb/Bubble). The Core Visualization Layer: Engineering interactive, custom open-source data tracking charts (utilizing D3.js or high-performance visualization packages) to map out predictive risk telemetry. User Auth: Airtight, password-protected multi-tenant user authentication and client login portals. Project Structure: We are a capital-efficient C-Corp moving at high velocity. We are looking for an experienced product builder who can act as a long-term technical partner. Please share your portfolio of completed SaaS platforms/dashboards, outline your architectural recommendations, and state your standard fixed-price or monthly fractional structures for a 60-day development milestone sprint.

  • Fixed price
  • Expert
  • Est. budget: $1,500.00

*NO AGENCIES, Single Engineers Only* SeatWaves is a live ticket resale platform with a fully operational web version, complete Broker API, and TicketMaster API integration already in production. We are looking for a skilled mobile developer to finish the final leg of our iOS and Android app — not start from scratch. The previous development team completed approximately 88% of the mobile frontend UI. The Figma designs are finalized. The backend APIs are live. What we need now is someone to come in, understand the existing codebase quickly, wire everything together, and deliver a production-ready app. What's Already Done → Live web platform (full-featured, production-ready) → Broker API — fully built and operational → TicketMaster API — fully integrated → Figma UI/UX designs for iOS and Android — finalized and approved → iOS & Android frontend — ~88% complete (UI built, needs backend wiring) What Needs to Be Completed → Wire existing mobile frontend to live backend APIs (authentication, listings, checkout flows, broker inventory) → Integrate TicketNetwork API — inventory feed and seat availability → Implement interactive seat map API integration → Bot protection and rate limiting hardened for high-traffic onsale events → Queue integrity and load-resilience architecture for peak traffic → End-to-end QA testing on iOS and Android → Store-ready builds (App Store + Google Play submission prep) Why $1,500? We want to be transparent about the budget and why we feel it's fair for the right developer. The heavy lifting has already been done. The UI is built. The APIs exist. The designs are approved. This engagement is scoped specifically around integration, security hardening, and QA — not ground-up development. We estimate 3–5 weeks of focused work for an experienced React Native or Flutter developer who can hit the ground running. We are not paying for a full build — we are paying for a sharp finisher who can take 88% to 100% efficiently and cleanly. We're offering $1,500 fixed price for a clearly scoped, well-documented completion sprint. Applicants who try to reprice this into a full rebuild will not be considered. Who We're Looking For → Strong experience with React Native or Flutter (please specify) → Proven ability to inherit and work within existing codebases → Experience integrating third-party APIs (ticketing, payments, or marketplace preferred) → Familiarity with security best practices for high-traffic consumer apps → Clear communicator — we need daily async updates and weekly check-ins → Portfolio or GitHub showing mobile apps you've shipped, not just started To be considered, please include the following in your proposal: 1. A brief overview of a similar project you've completed (inherited codebase or API integration work preferred) 2. Your estimated timeline to complete the remaining scope 3. Your preferred framework (React Native or Flutter) and why 4. Any questions you have about the existing stack Generic proposals will be declined. We're looking for someone who has read this carefully and can speak specifically to the work at hand. READY TO FINISH SOMETHING REAL? The foundation is built. The designs are done. The APIs are live. We need a finisher — someone who delivers, not someone who starts over.

  • Hourly: $51.00 - $80.00
  • Expert
  • Est. time: 1 to 3 months, Less than 30 hrs/week

Job Summary / Duties I’m looking for an expert-level UX/UI product designer with excellent judgment, strong web app design instincts, and an unusually good aesthetic sense. The ideal person can quickly understand an existing web application by reviewing both the live URL and the GitHub repository, then produce clear, actionable recommendations for improving the interface, user experience, visual hierarchy, usability, information architecture, and overall polish. This role is not just about making things “look nicer.” I want someone who can think like a senior product designer: identify friction points, simplify workflows, improve clarity, spot inconsistencies, propose better interaction patterns, and explain the reasoning behind each recommendation. The work will typically involve: * Reviewing an existing web app through the live URL and GitHub repo * Auditing the current UX/UI against modern web app best practices * Producing clear markdown files that document proposed changes, rationale, priorities, and implementation notes * Creating visual mockups, ideally interactive prototypes, that show the recommended improvements * Using tools like Figma/Adobe CC/whatever-you-prefer, GitHub, Codex, Claude Code / Claude-based coding workflows, or similar AI-assisted development tools to inspect the app and develop recommendations * Suggesting practical changes that a developer can actually implement * Prioritizing improvements by impact, effort, and user value * Noticing subtle design issues around spacing, typography, layout, affordances, responsiveness, accessibility, and interaction design * Helping turn rough functional web apps into clean, intuitive, polished, professional products I am happy to pay more for the right person. I care much more about expertise, speed, taste, and quality of output than finding the lowest rate. A great fit would be someone who can accomplish a lot in a focused hour and produce thoughtful, usable deliverables without needing heavy direction. Please include examples of web apps, dashboards, admin tools, SaaS products, or internal tools you have improved. Bonus points if you can show before/after UX work, product audits, Figma prototypes, GitHub-based workflows, or examples of markdown-based design specs you have created for developers.

  • Hourly
  • Intermediate
  • Est. time: 3 to 6 months, 30+ hrs/week

Long-term partnership. Individual operator or tight team. Bootstrapped venture. Propose your engagement. Project Overview BuildQuest is a SaaS marketplace helping homeowners plan $100K–$2M construction projects — major remodels, additions, custom builds. We solve a chronic problem that has plagued residential construction for decades, and we solve it from both sides of the marketplace. Order matters: BuildQuest was built to serve homeowners first. Pros come second. That orientation defines our positioning, pricing, and every decision. What we are BuildQuest is a real SaaS platform in active development — not a slide deck and not a solo founder side project. There’s a serious engineering team, a UI/UX and product lead, and an advisory board with deep tech backgrounds. The product is in good hands. What’s been founder-built and now needs a marketing partner is the public-facing marketing layer — brand voice, story, creative, distribution, infrastructure. That’s the work this hire takes over. Companion Document We’ve also attached the BuildQuest Marketing Manifesto to this posting — eight specific beliefs that shape what we’re hiring for. Please review it before responding. Candidates who reference it directly in their proposal will be evaluated more favorably. The two-sided problem Homeowner side (B2C — primary audience, paying customer). Planning a major project today means fragmenting effort across Pinterest, contractor calls, cost calculators, and trial-and-error research — to figure out what to build, articulate a personal style, land on a realistic budget, and find qualified pros. Months or years. Many projects die in the planning phase. Pro side (B2B — served through serving homeowners). Design and construction pros burn hundreds of hours on unrealistic prospects, then get charged by referral services to chase the same kind of leads. They’re tired of being courted as the customer. How BuildQuest flips the script. Most marketplaces in this category court pros as the customer and treat homeowners as the lead being sold. We do the opposite. Homeowners are the paying customer. Pros earn access by being good at their work — and what they get is fundamentally different from a referral platform: clients with clear scope, defined style, realistic budgets, ready to engage. That’s the B2B strategy: serve pros by serving the homeowner well. Why Now • AI is rewriting consumer discovery. Google search volume is plateauing for the first time. Homeowners increasingly ask ChatGPT, Perplexity, and Claude. The search-and-aggregator model that built Houzz and Angi is structurally shifting. • The referral-platform model is collapsing under pro fatigue and broken unit economics. • Consumer expectations for premium service in residential construction are at an all-time high — with almost nothing in the current landscape meeting them. Someone builds the homeowner-first incumbent in this space within the next 24 months. We intend it to be us. The marketing partner who joins now helps decide what that brand becomes. Why this engagement is different Long-term partnership, preserves your independence. Joining for the long haul — not executing a campaign and disappearing, and not a soft pitch to W-2. The best independents are independent for real reasons; we respect that. Brand DNA, not brand amplification. The narrative, voice, message architecture, and launch playbook are still being shaped. You help architect them. That window closes at launch. A storytelling and visual craft role at its core. The marketing partner owns the brand’s words and the visual output of marketing — mockups, ad creative, collateral, video concepts, social. Clint runs UI/UX and product design; the marketing partner runs marketing design. Two crafts, side by side. Founder-led content is the engine. Bill’s podcast (59 episodes and growing), book, and 30+ years of expertise are the engine. The partner builds the systems around it that scale the founder’s authority — amplification, distribution, repurposing. Founder-engaged collaboration. Bill is present at the weekly working session, looped in on meaningful decisions, and reviewing what goes out before it ships. The partner brings finished thinking and finished work; Bill reacts, we refine, we ship. Decisions happen in days, not months. Core focus areas Creative voice, copy & visual execution (primary) • Develop the brand voice and message architecture for both audiences (homeowner-first B2C, pro-serving B2B) • Write the core marketing collateral — landing pages, email sequences, ad copy, sales pages, social posts, video scripts, podcast descriptions • Produce designed mockups and finished-feeling marketing collateral — show up to working sessions with visualized concepts, not just briefs • Identify hook points — the moments where a homeowner (or pro) commits — and architect messaging and creative around them • Build the educational content strategy that translates 30+ years of construction expertise into content that genuinely teaches and converts • Develop launch narratives across pre-launch, beta, soft launch, public phases Launch & lifecycle systems (primary) • Design and execute waitlist and beta tester recruitment • Recruit design and construction pros to the platform’s free tier • Architect the full lifecycle — acquisition, activation, retention, expansion, referral, win-back • Run early acquisition tests with discipline on owned vs. rented attention Distribution & owned channels • Build distribution systems that turn content into actual attention • Prioritize owned media (email, podcast, community) over rented (paid) • Establish partnership and co-marketing strategy with adjacent brands Polish & revamp the marketing layer • Elevate the current marketing websites (founder-built; in need of partner-driven polish or revamp) • Audit and elevate current social presence and email list • Keep / optimize / rebuild decisions; lead execution Marketing infrastructure • Propose and implement CRM, automation, analytics, reporting • Email automation workflows • AI-augmented content workflows turning 59+ podcast episodes into multi-channel reach Content strategy, SEO & AI-era discovery • Modern SEO: semantic search, topic clusters, E-E-A-T • AI-era discovery: GEO/AEO, structured content for LLM citation, presence inside AI-generated answers • Repurposing systems for long-form expertise • Local SEO for the pro side Required capabilities Creative voice and copy. This role lives or dies on storytelling. You take 30+ years of construction expertise and turn it into stories homeowners feel and pros trust. You write hooks that convert. You design educational content that earns trust by genuinely teaching. You think in hook points and architect messaging around them. You write in long-form and short-form, B2C and B2B. Visual design fluency. You bring concepts to life visually — mockups, layouts, ad creative, social posts, video concepts, marketing collateral that’s already designed when it hits the table. Fluent in modern design tools (Figma, Canva, AI design and video tools). You produce finished-feeling work without waiting on a designer. Sector experience. U.S. home improvement, real estate, or residential design/construction — or proven ability to go deep on a complex category fast, with portfolio evidence. 0→1 launch experience. You’ve shaped brand positioning from scratch and taken products through pre-launch → beta → soft → public launch. Portfolio work to show. AI-era discovery (GEO/AEO). You build for presence inside AI-generated answers, not just search results pages. The most consequential shift in marketing discovery since Google itself The mission for a 2026 launch. Distribution-first thinking. Content abundance is no longer the constraint; distribution is. You measure success on reach and engagement, not output volume. Lifecycle marketing. You think in the full arc — acquisition, activation, retention, expansion, referral, win-back — not just the funnel top. Modern, AI-augmented marketing practice. You’ve built technology-augmented workflows that deliver meaningful productivity gains. Show us how a single operator or tight team uses today’s tools to deliver what used to take ten people — and how that leverage serves both sides of a two-sided marketplace. Analytics, stack architecture, systems thinking. Expert-level analytics, A/B testing, attribution, dashboard design. Can propose and implement a marketing stack appropriate to an early-stage two-sided SaaS. Reusable workflows. Strongly preferred • Two-sided marketplace experience — chicken-and-egg dynamics, geographic clustering, network effects • Vertical SaaS marketing — deep industry credibility, partnerships, community over feature comparisons • Founder-led content systems — you’ve built repurposing and distribution around a founder’s voice without losing the voice Helpful, not required • Performance marketing (Meta Ads, Google Ads, LinkedIn) • Podcast and long-form content optimization • Conversion rate optimization • Prior fractional or agency experience with early-stage clients What you’d be working with • Podcast: 59 episodes (and growing) of long-form expert content with established production workflows • Quinn AI Guide: designed character with voice synthesis and locked tagline, integrated into the platform • Companion brand: book + podcast feeding the platform’s AI knowledge base • Brand Standards v2: visual identity foundation in place • Two marketing websites — founder-built; in need of partner-driven polish or revamp • Live interactive tools on the platform site (proof of the platform philosophy) • Social presence across multiple channels — also founder-built, also needs elevation • Small email list ready to grow and segment How the founder works High standards, intense attention to detail. Every element of design, development, and brand reflects 30+ years of working on projects where one missed detail costs months and tens of thousands. Founder-engaged collaboration. Bill is present at the weekly working session, looped in on meaningful decisions, and reviewing what goes out before it ships. The partner brings finished thinking and finished work; Bill reacts, we refine, we ship. Decisions happen in days, not months. Deep respect for marketing’s value. Bill is not the founder who treats marketing as “spend” or expects magic. He’s looking for a partner whose expertise he respects, whose work he’ll back, and whose voice carries weight in decisions. Dual-vantage perspective. Bill operates from rare understanding of both homeowner and pro perspectives. Expect this to enrich every conversation about positioning, message, and audience. Engagement Structure We are intentionally not specifying fixed hours, retainer amounts, fee structures, or budget. We want you to propose what fits this engagement. Tell us: • Solo operator or tight team • Time commitment you’d propose for this scope • Engagement model (retainer, project-based, hybrid) • Marketing stack you’d recommend and approximate run-rate cost • How you’d structure the first 90 days • Your view on staying beyond launch as a long-term partner We evaluate on quality of thinking, fit with our reality, and the strength of the work itself — not just on price. Application Requirements Please submit your proposal through Upwork with the following: 1. Respond to the Manifesto Review the BuildQuest Marketing Manifesto (attached to this posting). In your cover letter, name 1–2 principles that most resonate with you and 1 you’d push back on or refine. This isn’t a trick — we want genuine engagement with how we think. 2. Cover Letter (300 words max) • Your reaction to the Manifesto • Your sector experience — home improvement, real estate, residential design/construction, or how you’ve gone deep on complex categories before • How you operate as a modern, AI-augmented marketer — and how that leverage serves both sides of a two-sided marketplace • Your view on long-term partner vs. project-only work 3. Writing Sample One piece of writing you’re proud of — a landing page, email sequence, long-form post, ad campaign, or brand narrative. The piece that best represents your voice and your craft. Attach it directly, or describe it in your proposal with a clear summary. 4. Visual Sample One piece of marketing design work you’ve produced — ad creative, social, landing page mockup, video frame, or marketing collateral. Attach it directly, or describe it clearly. We want to see your voice and your visual craft. 5. Portfolio (2–3 examples) • A 0→1 brand or launch you’ve shaped from scratch • A modern marketing workflow or system you’ve built — using technology including AI tools as force multipliers • A messaging architecture or positioning framework you’ve developed • Bonus: home improvement, real estate, marketplace, ConTech/PropTech, or founder-led content systems 6. Stack & Approach • The marketing stack you’d propose for an early-stage two-sided SaaS (homeowner-first) • Your view on AI-era discovery (GEO/AEO) and how you’d execute on it • Your default tools and why — especially CRM, automation, content, analytics • Approximate monthly run-rate cost of the stack you’d propose 7. Engagement Proposal • Solo or tight team • Time commitment • Model (retainer, project, hybrid) • Indicative fee structure • 90-day approach at a high level • Long-term partnership perspective 8. Three References • Preferably from B2B/B2C SaaS engagements • At least one able to speak to modern, AI-augmented capabilities Optional but valued • Short Loom video (2–3 minutes) introducing yourself • Example of a workflow or automation you’ve shipped Interview Process • Initial call with the founder (30 min) — fit, background, sector experience, Manifesto reaction • Take-home exercise (finalists only) — brand audit, positioning hypothesis, 90-day approach, stack recommendation, AI-era discovery move, and a 200-word creative sample • Working session with founder + designer (90 min) — present the exercise, discuss thinking, share visual samples • Reference checks • Final negotiation on engagement terms and offer About the Founder 30+ years in residential design and construction. Author of a published book on the homeowner experience. Host of a long-running industry podcast (59 episodes and growing). Advisory board includes past clients from Apple and senior tech leadership roles. Has built the AI guide and content workflows powering the platform — which is part of why he thinks differently about what a small team can do with modern tools. Mission: Serve homeowners first. Solve a chronic, decades-old problem at the front of the residential construction value chain. Deliver pros a fundamentally different kind of client — by serving the homeowner well.

  • Hourly: $35.00 - $60.00
  • Intermediate
  • Est. time: Less than 1 month, Less than 30 hrs/week

Project Overview I’m launching a multi‑product SaaS platform and need a UI Finisher who can jump into an existing Next.js + Tailwind + shadcn/ui codebase and deliver pixel‑perfect UI updates based on Base44 designs. This is a precision frontend implementation role — not design, not full‑stack, not a rebuild. You’ll be working directly in the codebase to finalize hero sections, pricing cards, routing behavior, and OAuth UI polish. What You’ll Work On • Pixel‑perfect hero section implementation • Pricing card layout + responsive behavior • Navigation + product domain routing fixes • OAuth button + callback UI polish • shadcn/ui component cleanup (spacing, variants, tokens) • Matching Base44 designs exactly Tech Stack Requirements • React • Next.js (App Router) • Tailwind CSS • shadcn/ui • TypeScript Nice to Have • Experience with Base44 or similar design systems • Strong eye for detail + responsive polish • Ability to work fast in tight iteration loops Deliverables • Hero parity • Pricing card alignment • Routing corrections • OAuth callback polish • Component cleanup Timeline Immediate start. Estimated 6–12 hours of work for the right person. To Apply, Answer These 3 Questions Share a link to a project where you implemented UI in Next.js + Tailwind + shadcn/ui. What’s your workflow for achieving pixel‑perfect fidelity from Figma/Base44? How many hours do you estimate for the scope above?

Posted 2 weeks ago
  • Hourly: $40.00 - $50.00
  • Expert
  • Est. time: More than 6 months, Less than 30 hrs/week

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.

  • Hourly: $8.00 - $10.00
  • Expert
  • Est. time: 1 to 3 months, 30+ hrs/week

Rate: $10/hr | 40 hrs/week | Long-term contract Job Success Score: 90% minimum required Individual developers only — no agencies ⚠️ This is NOT a greenfield build. The app already exists and is in active development. We are looking for a strong, senior React Native developer who can take ownership, write clean production-ready code, and help us get to launch without endless back and forth on PRs. ⛔ No major refactors ⛔ No new features unless explicitly approved ⛔ No “I rewrote everything” approaches About GoShopBlack: GoShopBlack is a marketplace mobile app that connects users with Black-owned businesses. The app is built in React Native with a Supabase backend and has draft builds on both Google Play and the Apple App Store. I do regular code reviews via GitHub and expect PRs to be tested, clean, and production-ready before submission. This is a serious long-term role — not a one-off project. Hours can increase for the right developer. What You'll Be Working On: - Ongoing React Native development for iOS & Android - Search and filter system by location, category, and business type - Google Maps API integration (not yet built — this is a key upcoming feature) - Business profiles (hours, contact info, website links, reviews) - Customer ratings and review system - Business submission and admin approval flow - E-commerce integration for businesses that sell online - Social login (Facebook & Gmail) plus email/password auth - Phase 2: push notifications, in-app messaging, ad integration, AI recommendations What I'm Looking For: - Senior-level React Native experience — you must show me apps you have shipped to the App Store and Google Play - Strong Supabase experience — this is our backend, no Firebase or AWS - Google Maps API integration experience - GitHub proficiency — include your GitHub profile in your proposal - Job Success Score of 90% or higher - Clean, well-structured code with no demo or test code in PRs - Someone who self-tests thoroughly and does full end-to-end testing before submitting a PR - Strong communicator who gives daily updates and flags issues early - Weekly proof of progress required (Git commits, test builds, or screen recordings) - Must be comfortable with Hubstaff time tracking from day one - Must be willing to sign an NDA and contract before starting Deliverables • Business profiles with operating hours, contact info, links, and gallery • Google Maps API integration for directions • Customer rating & review system • Business submission (enable businesses to submit details for approval) • UI/UX polish: clean, modern, mobile-optimized interface • App Store deployment: finalize builds & publish to Google Play & Apple App Store • • Future Enhancements (Phase 2 – Optional): • Membership/subscription for premium business listings • Push notifications for promotions and new listings • In-app messaging/chat • In-app transactions for e-commerce listings • AI-powered recommendations • Social/community features • • Requirements: • Fluent in English (speaking & writing) • Proven experience in Flutter (React Native also considered) • Backend experience with Supabase / Firebase / Node.js • Strong Google Maps API integration experience • Experience publishing apps on Google Play & Apple App Store • Strong UI/UX design sense • Ability to provide weekly proof of progress (commits, test builds, or demos) • Willingness to sign an NDA and contract • • How to Apply: • Please start your proposal with the word Love (to confirm you read the full post). • • Include: • Examples of previous apps you’ve developed (especially directories, e-commerce, or review systems) • A short outline of how you would approach reviewing and completing this project. • • Confirmation that you can commit to $1,600/month on weekly milestones.

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