Product Designer (UI + Front-End) | Design & Build Digital Experiences About Optimism Optimism is a modern media and technology platform building the future of well-being. We operate a growing ecosystem of health, wellness, and longevity brands—and are building toward becoming the most trusted and accessible destination for well-being. We are highly design-driven and care deeply about clarity, taste, trust, and human-centered experiences. We’re looking for an exceptional Product Designer who can both design and build. We’re looking for someone who can move fluidly between UI design and implementation—creating elegant interfaces and bringing them to life. The Opportunity You’ll help shape the digital experience across Optimism’s ecosystem—from landing pages and subscription flows to editorial products, email experiences, quizzes, onboarding journeys, and lightweight product interfaces. You should feel comfortable moving from: Concept → Design → Build → Launch → Test → Optimize We value people who care equally about aesthetics and performance. What You’ll Work On - Design high-quality UI across web, email, and product experiences - Create landing pages, onboarding journeys, quizzes, subscription flows, and conversion experiences - Translate strategy and user journeys into elegant, intuitive interfaces - Build and launch experiences directly (or work closely with engineering where needed) - Prototype rapidly and test ideas in market - Optimize experiences through iteration, experimentation, and performance insights - Help evolve scalable design systems and reusable UI components - Partner across product, growth, editorial, and engineering teams What We’re Looking For Strong UI Craft You have exceptional visual taste and understand: - Layout - Typography - Hierarchy - Interaction design - Conversion-focused UX - Systems thinking Builder Mentality You are comfortable turning designs into live experiences and understand front-end implementation. Experience with some of the following: - Figma - HTML/CSS - JavaScript - React - Webflow - Framer - WordPress You do not need to be a full-stack engineer, but you should be highly implementation-minded. Experience We Value - Product design, UI design, growth design, or front-end experience design - Designing conversion flows and onboarding experiences - Email design systems and responsive templates - A/B testing, experimentation, and optimization - Subscription, media, editorial, or content platforms - AI-assisted workflows for design and prototyping Ideal Candidate You are: - Highly detail-oriented - Fast-moving and iterative - Systems-minded - Collaborative - Curious - Comfortable operating in ambiguity - Obsessed with creating thoughtful, beautiful digital experiences Most importantly: you love building, not just designing. To Apply Please include: 1. Portfolio (required) 2. Examples of experiences you both designed and implemented 3. Your favorite product or digital experience and why you think it works 4. Your experience with front-end tools and no-code/low-code platforms 5. A brief note on how you use AI in your design workflow

We're looking for a senior full-stack engineer to take on hands-on work across our web platform, architecting features, building APIs, and delivering polished, performant UI. Looking for someone that can do full stack but is heavy UI developmenet leaning. You'll be doing: Building full-stack features end-to-end (dashboards, booking, payments, admin tools, etc.) Modernizing existing code and reducing technical debt Node.js services, REST APIs. Performance optimization across front-end and backend CI/CD, automated testing, container-based deploys You should have: 8+ years building production web apps Strong TypeScript across a modern framework (React) Solid Node.js / Express backend experience AWS or GCP, Docker, and CI/CD experience Comfort with PostgreSQL Automated testing (Jest, Vitest, or similar) Bonus: AdonisJS, Golang

We're a fast-moving studio building several SaaS products. The first — closest to launch — is a tool for churches and pastors. A lot of our app is built fast with AI-assisted workflows, which makes it functional but generic-looking. Your job is to give it taste: establish a clean, reusable design system and redesign our core screens so the product feels premium, trustworthy, and genuinely beautiful — then hand polished, dev-ready designs to our developers to build. This starts as a focused contract project — a design system + a redesign of our launch product's key screens — with strong potential to continue ongoing as we add more products. What you'll do Audit our current screens and redesign them into something clean, modern, and premium Build a reusable design system (components, color, typography, spacing, patterns) that our developers build within — so quality stays high without you touching every screen Design user flows and mockups for new features — improve usability, not just looks Hand off dev-ready designs in Figma (organized, spec'd, with all states) that our developers + AI build from accurately Review the built screens against your designs and polish the flows that matter most Bring brand sensibility — for our faith product that means calm, warm, reverent, and trustworthy, not flashy Our setup Our developers build in Next.js + React + Tailwind CSS (often with shadcn/ui). Designs that map cleanly to that world — and a smooth Figma → code handoff — make everyone faster. You don't need to write code, but understanding how design becomes front-end is a real plus. You're a great fit if you Have a portfolio of real SaaS / web-app product design (not just landing pages or logos) Have built or worked within a design system Have strong taste and restraint — you make things beautiful without over-designing Think about user flows and usability, not only visuals Communicate clearly and work independently Can overlap a few hours with US time zones Nice to have Can do light front-end yourself (a "design engineer" who designs and builds in React/Tailwind) Experience designing for faith, community, or trust-sensitive products Comfortable designing within / extending shadcn/ui + Tailwind To apply — answer these (applications without answers are skipped) Share 1–2 SaaS or web-app products you designed. What was the before/after, and what problem were you solving (not just "made it prettier")? Have you built or worked within a design system? Briefly, how? How do you hand designs to developers so they build them accurately? Your part-time weekly availability and US time-zone overlap. Shortlist step (paid) A short paid trial: we'll give you one real screen from our app and ask you to redesign it plus a few sentences on your reasoning. We hire from the trial, not the résumé.

I’m building the final UX surfaces for a July 1 SaaS launch and need a fast, reliable React + Supabase engineer who can execute clean, production‑ready screens and flows. The project is front‑end heavy, well‑defined, and focused on UI polish, dashboards, forms, and simple Supabase integrations. You’ll work directly with me (the founder) in a clear, async workflow with daily check‑ins. I move quickly, communicate clearly, and provide detailed requirements for each screen or flow. What I need built Dashboard_flows - user dashboards, scoring views, operator tools UX_surfaces - responsive screens using React, TypeScript, Tailwind Form_and_flow_logic - multi‑step flows, validation, state handling Supabase_integration - basic CRUD, auth, RLS‑safe queries Admin tools - simple internal views for data visibility UI polish - spacing, alignment, loading/error states Stripe_integration - light subscription or billing touchpoints This is not deep backend work. It’s clean, fast UI execution. How I work Clear requirements - I provide detailed specs for each screen Async- updates - daily check‑ins, async communication Fast iteration - I respond quickly and unblock immediately Direct founder access - no layers, no bureaucracy What I’m looking for React Typescript experience Tailwind UI polish Supabase familiarity Stripe comfort Clean communication US based Timeline & budget Start today 2 to 3 week contract 45 to 70 hr Potential ongoing work If you can start immediately and have examples of polished React/Tailwind work, I’d love to see your GitHub or recent projects.

# Overview We're a healthcare analytics company with an internal web portal (built in **Next.js 16 / React 19 / TypeScript / Tailwind CSS v4**) that embeds Power BI reports for our partners. The app works, but it was built quickly and needs to be brought up to a **production-quality standard**. It's a small, focused codebase (~2,400 lines), so this is a high-impact, well-scoped engagement — not a sprawling legacy rescue. We're looking for a senior frontend engineer to either **refactor the existingcode or rebuild it from a clean foundation** (your call — we want your recommendation), and to leave us with a maintainable, tested, polished application. # What you'll be working on A single Next.js App Router application that: - Renders a landing/navigation experience and a set of dashboard pages. - Embeds Power BI reports via `powerbi-client-react` ("App Owns Data"). - Reads a small amount of data from Postgres for user settings. **Authentication is fully handled upstream (SSO) and is OUT OF SCOPE.** You will never need credentials, secrets, or access to our production environment. (See "How we work" below.) # Scope of work 1. **Code quality & structure** — Establish a clean, consistent architecture: sensible component structure, strict TypeScript, and tooling (ESLint + Prettier). The repo currently has no linting or formatting setup. 2. **Testing & CI** — Add a testing setup (unit + a few integration/e2e tests for critical paths) and GitHub Actions CI gates (lint, typecheck, test on PR). There are currently **no tests** — establishing this foundation is a core deliverable. 3. **UI / UX polish** — Implement to our provided design direction: responsive layout, proper loading/error/empty states, and a polished feel around the (heavy) Power BI embeds. **We will provide the design/branding** — you implement it well, you don't need to invent the visual identity. 4. **Recommendation up front** — In an early milestone, give us a short written assessment: refactor vs. rebuild, and your proposed approach. **Out of scope:** authentication/SSO, SEO (the app is private and login-gated), backend/Power BI infrastructure, and anything touching production data. # Required skills - Deep, demonstrable experience with **Next.js (App Router)**, **React 19**, and **TypeScript** (strict mode). - **Tailwind CSS** proficiency and a strong eye for implementing designs faithfully. - Experience setting up **testing (e.g. Vitest/Jest + Playwright)** and **CI pipelines (GitHub Actions)** for frontend apps. - A track record of taking quick-build apps to **maintainable, production-grade** quality. ### Nice to have - Prior **Power BI embedding** experience (`powerbi-client-react`, "App Owns Data") - Accessibility (WCAG AA) and frontend performance optimization experience. # How we work (please read) - We operate in a regulated healthcare environment. You will work against a **sanitized copy of the repository** — no real report IDs, secrets, customer data, or production access. All data is mock/synthetic. - **Hourly engagement** via Upwork's tracker, with a cap. We estimate **~40–100 hours**; we'll set a weekly cap and review progress in milestones. - We value clear communication, small reviewable PRs, and your honest technical judgment over just "doing what's asked."

Senior UI/UX Designer About the Role We are looking for a highly capable UI/UX Designer to help redesign and modernize an existing low-code platform into a React + Python application. This is primarily a UX/UI design role focused on creating intuitive workflows, navigation, wireframes, prototypes, and high-fidelity designs in Figma. To be successful, you must be able to quickly understand complex business processes and translate them into clean, efficient user experiences. This is an initial 2-month engagement with strong potential for extension and additional projects. Responsibilities Design end-to-end user experiences for workflow-driven web applications. Create user flows, wireframes, prototypes, and high-fidelity designs in Figma. Analyze existing workflows, process maps, and system behavior to understand business requirements. Simplify complex operational processes into intuitive user experiences. Define navigation structures, information architecture, and reusable design patterns. Collaborate closely with product stakeholders and frontend engineers to ensure accurate implementation. Leverage AI tools such as Claude and Figma AI to accelerate design exploration and iteration. Requirements 4+ years of UI/UX or Product Design experience. Strong Figma skills, including components, design systems, prototyping, and developer handoff. Experience designing SaaS, enterprise, or workflow-heavy applications. Ability to quickly understand business processes and convert requirements into effective screen flows. Strong product sense, business acumen, and attention to detail. Excellent communication and collaboration skills. Experience using AI-assisted design tools, including Claude. Preferred Experience redesigning legacy or low-code applications. Experience with healthcare, financial, operations, or other process-driven systems. Familiarity with role-based workflows and HIPAA-conscious design principles. Engagement Details Initial 2-month contract with strong extension potential. Must be available and working 9:00 AM – 5:00 PM EST. Opportunity to contribute to additional UI/UX projects across the team.

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

Summary I'm building Artcade, a patent-pending peer-judged creative skill-gaming platform where people compete in drawing, photo, and writing contests, in 31-player cohorts, for real-money prizes. The mission is simple: incentivize imagination. The whole experience is generally built with AI prototyping. React/TypeScript, every screen from game selection through voting, results, wallet, and compliance. It was built fast and AI-native, and it's production-ish quality. Now I need a founding-level frontend/mobile engineer to help us on the last mile: convert it to a React Native iOS app and get a real build into TestFlight. That's the one thing that matters first. If you've shipped real mobile apps, you obsess over how a touch interface feels, and you're comfortable blending AI dev tools with strong engineering fundamentals, this role is for you. What You'll Do - Convert our React/TypeScript prototype into a React Native iOS app and get it live on TestFlight (the #1 priority. It unblocks everything downstream) - Stand up and manage TestFlight builds through a paced, compliance-gated cadence (build → cert gate → adjust → continue) - Own the drawing canvas end-to-end — multi-tool, touch optimization, responsiveness, performance. It's our signature surface and it has to feel great - Build the core game and voting flows (cohort fill, submission, the gated 5×6 → 5 → 1 voting flow, results) plus wallet, profile, progression, and responsible-gaming screens - Bring a real point of view on animation, transitions, and game feel — not just ship tickets - Use AI dev tools (Claude Code, Codex, similar) to move fast, and help systematize what works - Collaborate directly on product direction — this is a founding seat, not a ticket queue Ideal Candidate Experience - React Native Engineer (5+ years) with shipped mobile apps. - Real apps live on TestFlight / the App Store — React Native and/or native iOS (Swift/SwiftUI), not web-with-a-responsive-layout. - Strong React / TypeScript experience helpful. - UX craft on interactive, canvas, or touch-heavy surfaces. Mobile Expertise - React Native (Expo / bare workflow) and the iOS build + TestFlight pipeline - Touch handling, gesture systems, and 60fps performance on device - Animation depth — Framer Motion, Reanimated, or SwiftUI animation Craft & Canvas - Canvas / graphics / drawing-tool experience (Canvas API, WebGL, custom rendering) - A portfolio piece that's interactive and feels good to use — show us something you made - An eye for game feel, transitions, and micro-interactions AI-Native Builder Profile (Must-Have Mindset) - You've recently vibe-coded and are comfortable with AI dev tools like Claude Code, Codex, Droid - You blend AI output with your own logic and refactors — fluent, not dependent - You think of AI as a collaborator that lets a small team ship like a big one - You love testing new workflows and systematizing what actually works Highly Valuable - Mobile game experience — especially drawing / creative tools / rich touch interaction - Skill gaming, iGaming, or real-money gaming background (Skillz, Big Run, PrizePicks, etc.) - Real-time UX (WebSocket waiting rooms, live game state) - Design-fluent enough to pair tightly with a brand designer Soft Skills & Mindset - Operates like a founder — autonomous, pragmatic, fast - Runs from a prototype and a POV, doesn't wait for pixel-perfect specs - Communicates clearly and async-friendly - Comfortable with a paced, gated start-stop rhythm (the cert cadence is part of the job) - Cares how things feel, not just whether they work What You'll Get - A founding frontend seat on a product that's already built and ready to ship - Direct collaboration with the CTO on architecture and the CEO on product - 1099 contract-to-hire to start, converting to a full-time early-employee seat with equity on mutual fit - Real ownership of the surface users touch most — the draw tool is yours - The chance to define how an entire creative-gaming product feels on mobile Our Mission - We're building creative skill gaming that rewards imagination with real prizes. - The product is built. The job is to make it real on mobile, and make it feel incredible. - If you've shipped mobile apps you're proud of, you sweat the details of touch and motion, and you want to own a signature surface from day one, you'll fit right in. Note - This is U.S.-based and work-authorized (1099 → W-2 path). Rate is $50-70/hr depending on experience, negotiable up for strong mobile-game or drawing-tool backgrounds. We'll start with a short paid sprint on the actual codebase to align on pace and quality, then scale from there. Looking forward to building together.

Contract Full Stack Engineer – Manufacturing Data Platform Development Overview We are seeking an experienced full stack software engineer to design and implement a cloud-based manufacturing data platform to support device production testing, quality tracking, and manufacturing analytics. Our current manufacturing test workflow uses a Windows-based test application that logs production test data into Google Sheets. As we scale production and introduce contract manufacturing, we are transitioning to a structured cloud database architecture using Supabase and PostgreSQL. The contractor will be responsible for establishing the backend data infrastructure, assisting with integrating existing manufacturing test software with the new platform, and developing flexible data visualization and analytics tools for engineering and manufacturing teams. This is an opportunity to build a foundational manufacturing data system that will support production scaling, quality improvements, and future automation. Scope of Work 1. Database Architecture & Supabase Implementation Design and implement a production-ready database architecture using: Supabase PostgreSQL REST APIs Cloud-based authentication and security Responsibilities include: Define database schema for manufacturing test data Create tables and relationships for: - Device serial numbers - Production lots - Firmware versions - Hardware revisions - Test results - Calibration data - Operator information - Failure codes - Manufacturing history - Implement database indexing and optimization - Establish backup and data retention strategies - Configure user access permissions for internal teams and manufacturing partners 2. Manufacturing Test Software Integration Our existing Windows test application currently performs device testing and uploads results to Google Sheets. The contractor will: -Assist team members with replacing Google Sheets API integration with database/API integration -Develop secure REST API endpoints -Integrate authentication between the test application and backend -Design reliable data upload workflows -Handle offline operation and data synchronization considerations -Ensure robust error handling and logging Preferred experience: -C# / .NET desktop applications (current data gathering tools) -REST API development -Cloud database integration 3. Manufacturing Dashboard & Data Analytics Platform -Develop an intuitive interface for engineering, manufacturing, and quality teams. The platform should provide: High-Level Production Dashboards Examples: -Units tested per day/week/month -Production throughput -Pass/fail rates -First pass yield -Failure trends -Failure Analysis Tools Ability to analyze: -Failure categories -Failed test steps -Firmware correlation -Hardware revision correlation -Production lot trends -Time-based trends -Flexible Data Exploration The system should provide spreadsheet-like flexibility similar to Google Sheets pivot tables. Desired capabilities: -Dynamic filtering -Sorting -Grouping -Pivot-style summaries -Custom reports -Export capability (CSV/Excel) -User-defined views The implementation can be: -Web application -Desktop Windows application -Hybrid solution The priority is flexibility, maintainability, and ease of use by engineering teams. Technical Requirements Required experience: -PostgreSQL database design -Supabase platform experience -REST API development -Full stack application development -Data visualization/dashboard development -Cloud application architecture -Authentication and user management Preferred experience: -Quality systems -Production test software -Electronics manufacturing data -Statistical process control (SPC) -Yield analysis Preferred Technology Experience Backend: -PostgreSQL -Supabase -REST APIs -Python, Node.js, C#, or similar backend technologies Frontend: -React / Next.js -TypeScript -Dashboard frameworks -Data visualization libraries Desktop (optional): -C#/.NET -WPF -WinUI Analytics: -SQL reporting -Data aggregation -Pivot-style analysis tools Deliverables Phase 1 – Database Foundation -Supabase project setup -Database schema -Authentication system -API architecture documentation Phase 2 – Test Software Integration -Updated Windows tester integration -Data upload API -Error handling -Production validation Phase 3 – Manufacturing Dashboard -Production overview dashboard -Yield reporting -Failure analysis interface -Flexible data exploration tools Phase 4 – Documentation & Handoff -Database documentation -API documentation -Deployment instructions -Training for internal engineering team Contract position: Estimated duration: 3–6 months initially -Potential for ongoing support as manufacturing systems expand -Remote acceptable Ideal candidate: -Independent engineer comfortable owning architecture decisions -Able to work directly with engineering leadership -Comfortable building an initial system quickly while maintaining long-term scalability About the Product We are developing a battery-powered consumer electronics device transitioning from engineering prototypes into scaled manufacturing. The manufacturing data platform will become a critical component of our production infrastructure, supporting internal engineering teams and external manufacturing partners.

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.