We are looking for a developer with extensive knowledge of JavaScript who can build a backend from scratch using Express.js and MongoDB (Mongoose), has strong knowledge of JSON, APIs, Redis, Node.js, the EJS template engine, HTML and CSS. Has good understanding on how to debug web applications (such as missing files, missing or bad API responses, non-trivial JavaScript bugs that break the application). Can read and modify compiled Next.js, Nuxt.js, other frameworks or obfuscated JavaScript code without the original source code. Has basic knowledge of Next.js, Nuxt.js and other frameworks. Has ability to write JavaScript helpers to automate certain tasks e.g. operations on strings, arrays, objects, files or processing data to match a required structure. Has basic networking knowledge. Basic reverse engineering skills.

Job Description: We are seeking an advanced development partner or agency to architect and deploy a secure, high-availability AI automation platform that bridges modern intelligent agents with our existing legacy infrastructure.The core of this project requires building autonomous AI agents and dynamic RAG (Retrieval-Augmented Generation) pipelines for semantic search, which must securely interface with our backend databases and legacy applications.You will lead the end-to-end development, from writing robust backend APIs and designing a responsive React JS frontend, to configuring the underlying Linux servers and automated CI/CD pipelines. Key Responsibilities: Build custom AI agents and chatbots using advanced LLM API integrations and Model Context Protocol (MCP) tooling.Develop custom web crawlers to securely ingest, index, and structure big data into high-availability databases.Modernize and migrate legacy software components (including Classic ASP, PHP, and Java) into a modern TypeScript and Node.js microservices architecture.Implement workflow automations via Zapier/Make and deeply integrate third-party systems like Salesforce, Odoo ERP, Twilio, and Stripe payments.Set up robust DevOps practices, including automated QA testing, Linux server hardening, and comprehensive monitoring/observability metrics. Required Skills & Tech Stack: AI & Automation: LLM APIs, RAG, Semantic Search, Voice/Transcription, Zapier, Make.com.Core Languages: Python, Node.js, TypeScript, PHP, Java, Classic ASP.Frontend/CMS: React JS, Modern JS Frameworks, WordPress.Data & Infrastructure: Big Data engineering, advanced web scraping, Linux/Mail server administration, VMware alternatives, CI/CD pipelines, Networking & Security.Integrations: Salesforce, Odoo, Twilio, Google Workspace APIs.Web3 (Plus): Solidity, Smart Contracts, Token operations. Project Scope & Deliverables: Size: Large-scale enterprise migration and AI upgrade.Deliverables: Fully deployed AI workflows, a modern user dashboard, migration of legacy core features, and documented DevOps infrastructure.Experience Level: Expert.Budget Strategy: Hourly or fixed-price milestone contract.

We are seeking a skilled web developer to enhance our web application using React and integrate Stripe for payment processing. The ideal candidate will have a strong background in developing applications with JavaScript, Node.js, Next.js, and Supabase. Responsibilities include implementing user-friendly interfaces, ensuring smooth payment transactions, and maintaining code quality. If you are passionate about building responsive and efficient web solutions, we want to hear from you!

Job Description Summary We're looking for a senior full stack JavaScript / TypeScript engineer to join an active client engagement immediately. The work centers on taking a Chrome Extension from MVP to production, alongside a companion SaaS application used by the team managing the extension. General information This engagement is part of a larger product build for one of our clients. An MVP of the Chrome Extension has already been developed, and the focus now shifts to building, hardening, scaling, and shipping a production-ready release. The SaaS application serves the internal team that manages and operates the extension, and will be built in parallel. You'll be joining an existing engineering team with a project manager already in place. The role requires someone who can orient quickly in an active codebase, collaborate closely with teammates, and interface with project stakeholders when needed. Work is coordinated through Jira, and the team communicates via Slack and Zoom. You'll be onboarded with a Microsoft account that provides SSO access to the tools and systems you need from day one. Development work is performed by connecting to a secure dev workspace directly from your local IDE. Tasks and Deliverables - Take the Chrome Extension from MVP to a stable, production-ready release. - Contribute to the development of a companion SaaS application for the client's internal team. - Integrate into the existing engineering team and align with the project manager on priorities and delivery. - Engage with project stakeholders directly as needed throughout the engagement. - Maintain code quality, documentation, and engineering standards appropriate for a production product. Required experience - Senior-level full stack JavaScript and TypeScript experience. - Demonstrated experience building and shipping Chrome Extensions. - Strong front-end engineering skills, including a modern framework such as React. - Solid back-end experience with Node.js and REST API development. - Proven ability to onboard into an existing codebase and contribute without a long ramp-up period. - Experience working within a structured engagement — alongside a PM, an existing team, and external stakeholders. - Familiarity with Jira for task tracking and project coordination. - Excellent English communication skills; US-based or US timezone required. - Availability during standard US business hours, Monday through Friday. Nice to have: - Experience with SaaS architecture, including multi-tenant application patterns. - Familiarity with Chrome Extension APIs including content scripts, background service workers, and the Chrome storage API. - Background working in agency or client-services environments. Engagement highlights - Step into an active, well-scoped project with established project management and a clear path to production. - Work across two connected workstreams — a Chrome Extension and a SaaS platform — with room to take meaningful ownership. - Join an engaged team with strong client-side collaboration and defined stakeholder involvement. Additional information All candidates selected for engagement are subject to a standard background check prior to onboarding.

**Senior React / Next.js Developer Needed for 4–6 Week Contract** We’re looking for an experienced React and Next.js developer to join an existing project for a 4–6 week contract. The project is a complex web-based dashboard with multiple repositories, several third-party integrations, and a fairly involved infrastructure setup. The immediate goal is to help us catch up on outstanding deliverables, complete in-progress features, resolve bugs, and support the project through QA and release. This is best suited for a senior developer who can quickly understand an existing codebase, work independently, and contribute without requiring extensive onboarding. **Responsibilities** * Build and complete features in React and Next.js * Work across multiple repositories and shared services * Debug issues across the frontend, backend integrations, and deployment environment * Review and improve existing code where necessary * Address QA feedback and resolve bugs efficiently * Help stabilize features ahead of release * Communicate progress, blockers, and technical risks clearly * Coordinate with the existing team throughout development and QA **Required experience** * Strong professional experience with React and Next.js * Experience working in large or complex existing codebases * Comfortable navigating multiple repositories * Strong JavaScript or TypeScript skills * Experience consuming and debugging APIs * Familiarity with modern deployment and CI/CD workflows * Ability to work independently and deliver within an established project structure * Strong attention to detail during QA and release preparation **Experience with the following is a plus** * Vercel * Cloudflare Workers * Mailgun or Mailjet * Twilio SMS integrations * Email delivery and notification systems * Serverless infrastructure * Authentication and permissions for dashboard applications * Third-party API integrations * Monitoring, logging, and production debugging **Project details** * Contract length: approximately 4–6 weeks * Project type: complex website dashboard * Engagement: short-term contract, with the possibility of additional work based on project needs * Start date: as soon as possible * Work arrangement: remote When applying, please include: * A brief summary of your React and Next.js experience * Examples of complex dashboard or SaaS projects you have worked on * Experience working across multiple repositories * Any relevant experience with Vercel, Cloudflare Workers, Mailgun, Mailjet, or Twilio * Your availability over the next 4–6 weeks * Your hourly rate Please begin your proposal with the phrase **“Next.js Dashboard”** so we know you read the full posting.

I’m looking for an experienced Next.js developer to help update and improve my existing website. The site has already been built in Next.js, and I’m looking for someone who can work with the existing codebase not rebuild it from scratch. This will begin as a small project, but I’m looking for someone I can continue working with long-term as we add new features and make ongoing improvements. Responsibilities ● Update and improve our existing Next.js website ● Make design and content changes ● Create new pages and sections as needed ● Improve mobile responsiveness ● Optimize website speed and performance ● Fix bugs and troubleshoot issues ● Ensure SEO best practices are followed ● Deploy updates through Git/Vercel (or similar) Required Skills ● Strong experience with Next.js ● React.js ● JavaScript/TypeScript ● HTML/CSS ● Tailwind CSS (preferred) ● Git/GitHub ● Experience deploying with Vercel ● Strong attention to detail ● Excellent communication in English Bonus Skills ● Experience with Stripe integrations ● CMS experience (Sanity, Contentful, etc.) ● SEO optimization ● Experience with luxury brands or high-end website design ● UI/UX design experience What I’m Looking For ● Someone who communicates well and responds promptly ● Someone who takes pride in clean, organized code ● Someone who can make recommendations rather than simply follow instructions ● Reliable and available for ongoing work To Apply Please include: 1. Links to Next.js websites you’ve built. 2. Your portfolio or GitHub. 3. How many years you’ve been working with Next.js. 4. Your hourly rate or fixed-price estimate. 5. Your availability. 6. Please start your proposal with the word “Charleston” so I know you’ve read the entire post. I’m looking forward to building a long-term relationship with the right developer.

Job Description We are an early-stage SaaS platform prepping for an invite-only soft launch. Our application is built using a modern JavaScript stack (React frontend, Node.js backend). We are looking for an experienced, highly disciplined full-stack engineer to evaluate our current architecture for commercial readiness and finish our remaining launch features. This is a paid, contract-based project. We are looking for immediate execution, not co-founders or equity partners. How We Will Begin (Milestone 1: Paid 4-Hour Code Audit & Report) Before writing any feature code, your very first engagement will be a paid, 4-hour architecture diagnostic . We need an objective, expert assessment of whether our current codebase is robust enough for commercial deployment. • 3 Hours - Codebase Ingestion & Diagnostic: Deep-dive into our existing repository files to inspect data flows, state management, backend routing, and technical risk • 1 Hour - Deliverable Report: Provide a concise written summary answering: 1. Is the current architecture commercial-ready? (Yes/No, with specific reasons). 2. What exact refactoring or security measures are required to make it launch-ready? 3. Your fixed-price/hourly quote and exact timeline to complete the remaining tasks below. ________________________________________ Remaining Development Tasks (Post-Audit Scope) Phase 1: UX & Processing Flow • Scan Progress Animation: Redesign a multi-step loading/processing screen sequence (an 8-step pipeline tracking data ingestion, filtering, and quality standards) • Phase 2: Data Quality & Integrity Layer • Live Discovery Panel: Build/finalize a real-time sidebar panel that searches existing platform records as the user types to prevent duplicate database queries • Canonical Entity System & Search Normalization: Implement backend logic and frontend filters to normalize user search inputs (handling inconsistent capitalization, spacing, hyphens, abbreviations, and common aliases) to cleanly map multiple variations to a single canonical database record Technical Requirements • Strong proficiency in React (hooks, state management, clean architecture) • Strong proficiency in Node.js and relational/non-relational database normalization logic • Experience with smooth CSS/JS processing animations • Ability to write clear, actionable technical discovery/readiness reports To Apply Please submit your proposal detailing your experience auditing existing JavaScript codebases for commercial scale. Please explicitly confirm your availability to complete the 4-hour Code Audit & Report milestone.

We're building multiple AI-powered SaaS products and MVPs using modern technologies. We're looking for an experienced Full Stack Developer to help build new features, fix bugs, improve performance, and ship products quickly. Most tasks are small and focused (typically 4–8 hours each), with the opportunity for long-term collaboration across multiple projects. What You'll Be Working On Typical tasks include: • Building new features with Next.js and NestJS • Working with Supabase (Auth, Database, RLS, Storage, Edge Functions) • Developing AI chat features using OpenAI or other LLM APIs • Integrating Stripe subscriptions and payment flows • Building REST APIs and backend services • Creating responsive UI with Tailwind CSS • Fixing bugs and improving application performance • Refactoring and improving existing code • Reviewing and improving AI-generated code from Cursor, Claude Code, Lovable, or similar tools • Helping launch SaaS products and MVPs quickly Engagement • Small tasks (typically 4–8 hours each) • Ongoing work across multiple projects • Flexible schedule • Async communication • Long-term opportunity for the right developer When Applying Please include: • Your best Next.js + Supabase project • A SaaS or MVP you've built • Your experience with Stripe and AI integrations • Your experience with Cursor, Claude Code, or similar AI tools • Your availability this week What We're Looking For Ideally, you: • Have strong experience with Next.js, NestJS, and TypeScript • Have solid experience with Supabase • Have built SaaS products or MVPs • Have experience integrating Stripe and AI APIs • Can work independently and solve problems efficiently • Write clean, maintainable, and scalable code • Are comfortable using AI coding tools • Communicate clearly and provide regular progress update

We’re seeking a full-stack developer to help build a SaaS MVP using TypeScript and Next.js. The platform will center around a PostgreSQL-backed system with user authentication, role-based access control, asset tracking, inspection logging, and photo upload functionality. This is a data-driven product, so experience designing clean, scalable database structures and building reliable backend workflows is important. As part of the initial phase, we plan to launch a beta using Airtable to validate workflows and refine the data model before transitioning to a fully custom build. Experience working with Airtable or integrating it into early-stage products is a strong plus. We’re looking for someone who has solid experience with TypeScript and Next.js, can move efficiently, and is comfortable working on an evolving product. The goal is to have a functional MVP completed within the next three months. This isn't a hard deadline, if our goal is ambitious let us know and we can discuss.

DO NOT SEND AN AI GENERATED PROPOSAL. READ THROUGH THIS POST AND GIVE US YOUR HUMAN RESPONSE. Location: Remote Team size: Small (you’ll know everyone’s name) Stack: Java 21 / Guice / Gradle backend + React 19 / TanStack / MUI frontend **To apply** 1. Give us a few sentences for why you're a fit for the description below. 2. Include a Github/Gitlab/Gitea link to a recent PR you’re proud of (any language) 3. 5–10 minute Loom of you using Claude Code on a real task. **About the role** QAction is a large-scale Java enterprise document, records, and workflow platform — multi-project Gradle build, ~15 modules, customer-specific deployments (USDA, Ditco, Ascension, Mayo). The backend is being modernized behind an OpenAPI v2 surface (oasv2); the frontend is being rebuilt off GWT onto React 19 + TanStack Router/Query/Start with MUI v7. We need a developer who’s equally comfortable extending a v2 endpoint in a Guice-wired Java service as they are wiring up a TanStack Query call behind a Lexical editor or a virtualized data table — and who treats Claude Code as a peer on the keyboard, not a novelty. You’ll work directly with the product lead. No layers, no JIRA theater. Ship, review, iterate. **What you’ll do** Own vertical slices end-to-end: OpenAPI spec → Manager/ManagerImpl + EndpointImpl in QAction Java → React 19 / TanStack Query UI → JUnit + Playwright coverage. Extend the QAction Java backend: Guice (constructor injection only), Hazelcast-aware code paths, customer-deployment-aware module wiring, JUnit under oasv2. Build Modern UI features in the React 19 stack: TanStack Router/Query/Start, MUI v7 + Emotion, React Hook Form + Zod, Lexical, dnd-kit, OIDC auth (oidc-client-ts), TypeScript with the wrapper-component discipline already in place (Button, Icon, LabeledObject, ScrollShadows, etc. — never raw MUI in features). Move features off GWT onto the React 19 stack one slice at a time, without breaking the legacy app. Pair with Claude Code daily — write prompts that ship code, review agent diffs critically, and improve our skills/agents library when the workflow has friction. Keep integration tests honest: real DB + Solr + Keycloak at the seam, not mocks. Tech direction you’ll be living in **Backend** Java 21, Gradle multi-project (build single modules — ./gradlew QAction:build — never clean build) Guice DI, constructor injection, Manager/ManagerImpl naming (we don’t use “Service”) OpenAPI-first v2 endpoints in oasv2, canonical error model, paginated response classes as standalone beans in oasv2.beans Hazelcast clustering, Solr search, Postgres/MSSQL, Keycloak/OIDC FileNet integration, document import/migration tooling, RMT/remote services **Frontend** React 19 + TypeScript, Vite 7, TanStack Router + Query + Start + Table MUI v7 + Emotion, MUI X Date Pickers + Tree View Lexical (rich text), @dnd-kit + Atlaskit pragmatic-drag-and-drop, react-virtualized, react-pdf React Hook Form + Zod, oidc-client-ts + react-oidc-context, notistack, pino File naming kebab-case, @/ path imports, theme-first styling, wrapper components over raw MUI Adjacent surfaces in scopes over time **What we’re looking for** 8+ years shipping production app code across backend and frontend. You’ve owned services and UIs, not just one or the other. Java fluency — Guice or Spring DI, REST/OpenAPI design, JUnit. Bonus if you’ve worked in a 1M+ LOC enterprise Java codebase with customer-specific module deployments and didn’t flinch. Modern React fluency — React 18/19, TypeScript, TanStack Query (or React Query), a real opinion about effect dependency graphs, comfort with virtualized tables and rich-text editors. OpenAPI-first thinking. Specs are the source of truth, not documentation written after the fact. Claude Code power user. You write prompts that delegate well, you know when to use a subagent vs. inline, you’ve built or extended skills/hooks/MCP integrations. You can show us a recent session where Claude shipped something non-trivial under your direction. Small-team temperament. You’re allergic to ceremony. You read code before asking. You raise a small PR when it’s ready. **Nice to have** GWT (you won’t write new GWT, but you’ll need to read and migrate it). Workflow / BPMN, records management, e-signature, or ECM domain experience. Hazelcast, Solr, Keycloak operational familiarity. Lexical or another modern rich-text editor. Playwright (you’ll inherit a calibrated suite — we want you to improve it, not rewrite it). Docker compose stack bring-up across Postgres, MSSQL, Solr, Keycloak. Python services or Helm/Kubernetes deployment experience. **How we work** Small PRs. Every change ships through review. If it’s getting big, split it. Test-driven design. Tests come with the code, not after. JUnit on the Java side, Vitest + Playwright on the React side. Daily standups. 15 minutes, async-friendly, but we show up. Memory-backed Claude Code sessions — agents learn the codebase with you, not against you.