# Full-Stack AI Engineer — Semantic Search + Next.js + Supabase (Long-Term, Contract-to-Hire) ## About We're building an AI-native platform that makes a large archive of recorded talks genuinely discoverable and useful: need-based semantic search over transcribed media, with a subscription product built around it. We have a clear product vision and architecture and are looking for a lead engineer to build the first version and grow with us long-term. Full product details are shared with shortlisted candidates under NDA — this post focuses on the engineering and the skills we need. ## The engineering challenge You'll build a two-part system that shares one database: 1. **A content pipeline (Python):** ingest recorded talks, transcribe them, chunk and enrich the transcripts with metadata using an LLM API, generate embeddings, and store everything in Postgres. 2. **A web app (Next.js):** fast, crawler-friendly, SEO-strong content pages with structured data; retrieval-based search that returns relevant source material with links/citations; user accounts; and Stripe-gated paid content. We care a lot about retrieval *quality* and clean, maintainable architecture — this is a real product, not a prototype. ## Required tech stack - **App:** Next.js (App Router), TypeScript, Vercel. Strong SSR/SSG, SEO, and JSON-LD structured-data experience. - **AI/backend:** Python; production RAG (embeddings, chunking, retrieval quality); LLM API integration. - **Data:** Postgres + **pgvector** (via Supabase); embeddings via a hosted model (Voyage/OpenAI). - **Auth & gating:** Supabase Auth with row-level security. - **Payments:** Stripe (subscriptions + one-time). ## Required skills - Shipped production Next.js (App Router) + TypeScript apps with strong SSR/SEO. - Built a real RAG / vector-search system in production — not a tutorial clone. - Comfortable in Python for data pipelines. - Postgres + pgvector and Supabase in production. - Stripe integration. - Plans before building; communicates clearly in writing. ## Nice to have - Audio/video transcription experience (Whisper / faster-whisper / Deepgram / AssemblyAI). - Agentic coding workflows (e.g., Claude Code). - Content-heavy SEO products or media libraries. ## Engagement - Hourly, contract-to-hire. ~20–40 hrs/week to start; long-term for the right person. - We start finalists on a **small paid test project** (a single self-contained slice of the pipeline) before the full engagement — that's how we evaluate fit. ## Confidentiality This is a proprietary product. Shortlisted candidates sign a mutual NDA before we share full scope and context. Please don't expect complete product details in the first exchange — strong technical applicants will have everything they need to be evaluated, and the rest follows the NDA. ## How to apply Applications that skip these are ignored: 1. **Start your proposal with the word `pgvector`** so we know you read this. 2. Link **two** projects: one live Next.js/SSR app, and one RAG/embeddings or LLM-integration project. Tell us what *you* personally built. 3. Answer briefly: *An offline embedding pipeline and a live search query must use the same embedding model — why does that matter, and how would you guarantee it?* 4. One line on your approach to chunking long-form audio/video transcripts for good retrieval.

We’re looking for an experienced full-stack Meta ads operator to validate paid acquisition for Revuzo, a B2B SaaS product for local businesses. This is not a consulting or done-with-you role. We need someone who can take ownership of the complete process: * campaign strategy * ad concepts and hooks * copywriting * creative production or coordination * campaign setup * tracking * landing page recommendations * campaign management * testing and optimization * weekly reporting You may use your own designer, editor, actor or UGC creator, but you remain responsible for delivering the full campaign. Product: Revuzo helps local businesses generate more Google reviews, improve their reputation and increase visibility across Google and AI search. The platform sends review requests through email, SMS and WhatsApp, manages reviews, captures private feedback and helps businesses improve their overall online visibility. Initial niches include: * auto repair * med spas * dentists * other service-based local businesses Website: https://www.revuzo.com Live product demo: https://app.revuzo.com/try/#/home?category=auto-repair-pro Current stage We are still in validation and are starting our second cold email acquisition test. We already have: * a developed cold email outbound system * defined local business ICPs * improved positioning * a stronger offer * a personalized Visibility Report as the lead magnet * internal onboarding and trial conversion systems The initial funnel will likely be: Meta ad * free Visibility Report * report review or booked call * trial * paid customer We are open to better recommendations based on your experience. Creative responsibility Creative strategy and production are a major part of this role. We do not currently have finished ad creatives or customer testimonial footage. You must be able to develop strong concepts and produce or coordinate the creatives. Possible formats include: * business owner or UGC-style videos * actor-based scenarios * screen-recorded Visibility Report walkthroughs * software demo ads * motion graphics * static ads One possible angle: A local business owner believes their Google reputation is already strong, but the free Visibility Report reveals hidden review, ranking, competitor or visibility gaps. Revuzo then helps them improve those areas and attract more customers. We expect you to recommend which concepts and formats should be tested first. First-month objective The first 30 days are for validation, not immediate scaling. Expected scope: * review the offer and funnel * recommend the first niche * create the campaign strategy * develop at least 3 different creative concepts * produce multiple ad variations * install or verify Meta tracking * launch and manage the campaigns * monitor lead quality * introduce new tests when needed * report weekly Initial ad spend: * approximately $1,000-$2,000 for the first month Freelancer budget: * approximately $1,000-$2,000 for the first month * depending on experience and what is included If the validation produces promising results, this can become an ongoing engagement with increased spend. What matters We are not only looking at: * clicks * impressions * cheap leads * surface-level ROAS We care about: * qualified Visibility Report requests * booked calls * qualified trials * activated trials * paid customers * customer acquisition cost Requirements * strong Meta lead generation experience * experience with B2B SaaS, local business offers, audits, reports or marketing services * strong creative strategy skills * ability to produce or coordinate creatives * strong tracking and attribution knowledge * full-funnel thinking * clear weekly communication * willingness to work inside Revuzo-owned accounts Everything must remain owned by Revuzo, including: * Meta Business Manager * ad account * pixel and datasets * audiences * campaign history * landing pages * creative source files * lead and conversion data Application Start your application with “Revuzo” so I know you read the full description. Please answer: 1. Share one relevant Meta campaign you managed, including the offer, audience, ad spend, lead cost and customer results. 2. Which parts did you personally handle, including strategy, copy, creatives, landing page, tracking and campaign management? 3. How would you test and advertise Revuzo’s free Visibility Report during the first 30 days? 4. Can you handle the full creative process, and what is your fee with everything included?

**About us** House of Horror Haunted Carnival is Miami's largest haunted attraction, now in its 25th year. Our 2026 season opens September 24 at Tropical Park. We do the majority of our ticket sales same-day, to a heavily Spanish-speaking local audience, so our website has to answer questions fast on a phone at 5 PM on a Saturday. **The project** We have a working React chat widget already built — a bilingual (English/Spanish) visitor concierge that answers questions about hours, tickets, and attractions, and links to the right ticket page. It currently calls the Anthropic API directly from the browser, which is fine for a demo and unacceptable in production. Your job is to take it live: 1. Stand up a small server-side endpoint on our infrastructure that holds our API key and proxies requests to the Anthropic API. 2. Repoint the widget at that endpoint and remove the client-side key and prompt. 3. Add basic protections: rate limiting, CORS restriction, input validation, graceful failure. 4. Wire a small JSON schedule file that drives an "open tonight" indicator, so our staff can edit closed dates without a developer. 5. Add UTM tagging and analytics events on ticket-link clicks. 6. Test on real iOS and Android phones and hand off code in a repo we own. We have a written build spec covering the architecture, the endpoint, the schedule logic, and a QA checklist. We'll share it with shortlisted candidates. This is a well-defined project, not an open-ended research task. **You should have** - Solid JavaScript/React, plus server-side experience (Node, PHP, or serverless functions) - Shipped and deployed API endpoints before, on a live site - Working understanding of environment variables, CORS, and rate limiting - Comfort testing mobile-first on real devices - Clear communication and fast turnaround Experience with the Anthropic or OpenAI APIs is a plus but not required — this is a standard HTTP integration. **No machine learning, model training, or AI infrastructure work is involved.** Please don't propose a chatbot platform, a vector database, or a rebuild; the widget is finished and we like it. **Timeline & terms** - Fixed price. Please quote your number and your hours. - Delivered and tested on staging within 2 weeks of start; live no later than **September 1, 2026**. - We'd like the option to keep you on a small retainer for the season (Sept 24 – Nov 1) for quick fixes. Say whether you're open to that. - All code delivered to a repository we own. The API account and key stay in our name. **To apply, answer these three questions in your proposal** (proposals without answers won't be reviewed): 1. Where does the API key belong, and why? 2. If the site needs to know we're closed on a specific date, how would you handle that? 3. Briefly, what have you deployed that's most like this? Please also tell us your availability on evenings and weekends during opening weekend (Sept 24–27).

## Project Overview I am seeking an experienced Senior AI Systems Architect / Full-Stack Engineer to evaluate and potentially lead the technical architecture of a new enterprise software platform currently under development. At this stage, I am not looking for someone to simply write code. I am looking for an experienced technical professional capable of evaluating architecture, recommending technologies, and helping define the engineering roadmap for Version 1. The project involves the integration of artificial intelligence, enterprise software architecture, workflow automation, secure data management, API integrations, and cloud-based application design. Because the project contains proprietary intellectual property, detailed information will not be disclosed during the initial interview process. Candidates selected to move forward will be asked to execute a Non-Disclosure Agreement before reviewing project documentation. ## Initial Objectives • Review the existing project at a high level. • Evaluate technical feasibility. • Recommend the most appropriate technology stack. • Design the production architecture. • Develop an implementation roadmap. • If mutually agreed, continue as the lead software architect for Version 1. ## Required Experience Applicants should have significant experience with: • Enterprise software architecture • Artificial Intelligence integration • API development and integration • Full-stack application development • Cloud architecture and deployment • Database design • Authentication and application security Excellent communication skills are important. I am looking for someone who enjoys solving complex architectural challenges and who is interested in building something from the ground up. ## Please Include 1. A brief summary of your architecture experience. 2. Examples of enterprise software systems you have helped design. 3. AI-related experience. 4. Your preferred technology stack. 5. Why this opportunity interests you. The initial engagement is intended as an architectural evaluation. A longer-term relationship may develop if there is a strong mutual fit.

We are building a custom Drone Operating System for advanced UAVs and lighter-than-air platforms. The system requires robust flight control integration, real-time sensor fusion, edge AI capabilities, and reliable connectivity (including satellite and radio links).We need an experienced full-stack AI developer to: Design and implement core Drone OS modules (flight stack interfaces, sensor fusion, mission management) Integrate edge AI models for perception, decision-making, and optional voice interaction Build reliable communication layers (MAVLink/ROS 2, Starlink, radio) Create clean APIs, logging, and ground-station interfaces Ensure the system is modular, testable, and suitable for real-world flight testing Required skills: Strong experience with PX4, ArduPilot, or similar flight stacks + ROS 2 Python and C++ (production-quality code) Edge AI / onboard inference (NVIDIA Jetson or equivalent) Real-time systems and sensor fusion Full-stack capability (backend services + basic frontend/ground control interfaces) Nice to have: Experience with GNSS-denied navigation, anti-jam techniques, or multi-sensor fusion Prior work on UAV, robotics, or autonomous systems Familiarity with satellite connectivity or long-range radio links This is a hands-on development role with direct impact on a real flying system. We value clean architecture, reliable code, and clear communication. Please share relevant past projects (especially any drone, robotics, or edge AI work) and your availability. Looking forward to working with a strong technical partner.

Wagner Site Solutions is seeking a skilled UI/UX Designer, Web Developer, or Full-Stack Designer/Developer to build a modern, clean, and highly functional industrial e-commerce website. The platform will include 13-15 products, each with multiple variation types, structured product data, and a streamlined user experience. For layout and simplicity, please reference Motion.com. Our site should follow a similar structure but must be uplifted significantly in terms of modern design, branding, polish, and overall user experience. Project Scope: Full e-commerce website build, 13-15 products with multiple variation types, clean, modern UI with strong visual hierarchy, structured product data and variation logic, smooth navigation, fast, stable, scalable front-end/back-end, and strong brand alignment for Wagner Site Solutions. Who Should Apply: UI/UX Designers, Web Developers, Full-Stack Designer/Developers, Agencies or individuals capable of end-to-end delivery. Specializing in only design or only development is perfectly fine — please apply. Next Steps: I’d like to schedule a 30-minute Microsoft Teams meeting to review the full scope. After our discussion, please provide an estimated number of hours based on your typical workflow. Please Apply If… You have experience with e-commerce builds, clean UI/UX, or industrial/product-heavy websites. Thank you, Ryan – Wagner Site Solutions

Looking for a fractional CTO (10–20 hrs/wk) for JoinJam, a consumer music collaboration app. Responsibilities include technical ownership of reliability, security, release discipline, Sev-1 triage, and architecture. Experience with SwiftUI iOS and full-stack development is preferred. This is an ongoing part-time retainer role, not a rewrite or feature factory.

I am looking for a full stack developer to build a multi tenant sass system for a delivery service for car dealerships. I attached the product requirements and specs. I am open to all quoting estimates but care about execution and delivering the actual product requirements, architecture, & business objectives laid out by our head of products. Please provide your expertise for how you would stage the development cycles

I am seeking an experienced senior full-stack / SaaS / AI developer or small development team to architect and build the MVP for a new premium digital platform. This is an early-stage product, but it is well beyond the idea stage. Significant work has already been completed defining the business requirements, user experience, workflows, visual direction, administrative requirements, privacy/security principles, and MVP scope. The initial engagement is to build the first SaaS product and underlying technical foundation for a larger business that may expand into additional digital capabilities over time. This is not a basic website project or generic AI chatbot. The MVP will require a secure authenticated customer application and administrative environment incorporating structured records, document/image uploads, AI/API-assisted processing and research, generated customer deliverables, subscription/payment capabilities, and administrative workflows. High-Level MVP Requirements The application is expected to include capabilities such as: Secure customer registration and authentication Customer dashboard and account management Creation and management of structured customer records Secure photograph and document upload/storage AI/LLM and third-party API integrations AI-assisted research, analysis, and content generation Structured storage of AI/research results Professional customer-facing document/report generation Private administrative dashboard and workflow tools Human review/approval capabilities Subscription and payment integration Role-based permissions and appropriate access controls Privacy-focused data architecture Production deployment, backups, logging, and monitoring Responsive, polished web-based user experience The platform will handle information customers consider private and potentially sensitive. Security, privacy, data minimization, and access control therefore need to be considered at the architectural level from the beginning. Technology Approach I am deliberately not prescribing a technology stack. I have done some early experimentation with low-code tools to help visualize the concept, but I am open to: Traditional full-stack development Low-code platforms such as Bubble Hybrid architecture Other appropriate modern approaches I want the selected developer to recommend the architecture based on the actual product requirements, including development speed, security, AI/API integration, maintainability, scalability, operating cost, portability, and avoidance of unnecessary vendor lock-in. Existing Product Work Detailed product-definition materials have already been developed, including: Product and MVP specifications User/customer workflows Administrative workflows Data requirements AI/research requirements Privacy/security requirements Customer deliverable concepts Visual/design direction MVP acceptance criteria Future product considerations These materials and the detailed business concept will not be included in the public posting. They will be shared with selected finalists after an NDA/confidentiality agreement is executed. The selected developer will therefore not be starting with a blank sheet of paper. Developer Profile I am looking for someone with demonstrated experience building production SaaS applications and who can contribute technical judgment rather than simply execute instructions. Relevant experience should include several of the following: Full-stack SaaS development AI/LLM API integration Third-party API integration Relational database architecture Authentication and authorization Secure file/document storage Administrative portals and workflows Subscription/payment integration Automated PDF/report generation Privacy/security architecture Cloud deployment Monitoring and logging I am particularly interested in developers who have previously taken a new SaaS product from requirements/architecture through working production MVP. Engagement I anticipate a milestone-based fixed-price engagement. The first milestone will likely involve reviewing the confidential specifications, validating/refining the MVP scope, recommending the technology architecture, confirming the data/security approach, and producing an agreed development plan before proceeding into the full build. I am open to an ongoing relationship with the right developer as the platform grows, but the application should be architected and documented so that the business retains control of its technology and another qualified developer could support it if necessary. Please Answer These Four Questions 1. Relevant experience: Please provide two examples of SaaS/AI applications you have personally helped build. Briefly explain what the products did, your specific role, the technology used, and whether you were involved from architecture through production deployment. 2. Technology selection: Without knowing the confidential business concept yet, what factors would lead you to recommend traditional full-stack development vs. Bubble/low-code vs. a hybrid architecture for a new AI-enabled SaaS MVP? 3. AI and security experience: Please describe your experience integrating AI/LLM services into production applications that also contain private customer information, uploaded documents/images, authentication, and role-based access controls. 4. Development approach: When a founder already has detailed product requirements, workflows, and design direction, how do you normally take that material from technical architecture → MVP development → testing → production launch and handoff? Please do not provide a generic proposal. I am particularly interested in your answers to these four questions. If your response does not include answers to these four questions, it will be disregarded in order to save your time and mine. Additional product information will be provided to selected candidates following execution of an NDA.

Existing founder is looking for a full stack engineer to be the founding engineer at Socratix, an agentic AI powered data platform for sales teams connecting Zoom, Teams and other communication data together to drive insights and deals. Product is currently in MVP state and requires development to a SOC II production grade platform for early customers. Ideally, this role becomes full time as part of the founding team presenting to investors later in the year. Must have an understanding and appetite for startups and working in an unstructured environment with a build mentality. Part time is an option for Sr. experienced engineers who have the capacity to execute rapidly due to their experience. Equity and salary will be discussed. Founder is in NY, NJ, but open to locations. Remote role.