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  • Hourly: $65.00 - $125.00
  • Intermediate
  • Est. time: 1 to 3 months, Less than 30 hrs/week

Join our family-owned janitorial supply distributor in Rahway, NJ, established in 1961. We are seeking an experienced developer to integrate Claude AI into our enterprise systems. The role involves developing custom solutions, ensuring seamless integration, and optimizing AI performance. Collaborate with our team to enhance our operations and customer experience.

Posted 2 months ago
  • Hourly: $35.00 - $80.00
  • Expert
  • Est. time: 3 to 6 months, Less than 30 hrs/week

Frontend: React Native (Expo SDK 54), TypeScript Backend: Firebase — Firestore, Cloud Functions (Node, v1), Firebase Auth, Firebase Storage Architecture: Multi-tenant data model (multiple client organizations sharing one Firestore database, isolated by security rules) Auth: Email/password via Firebase Auth, role-based access (general contractor / subcontractor roles) Firebase / React Native SaaS (Contract, with potential for ongoing work)

Posted 3 weeks ago
  • Hourly
  • Expert
  • Est. time: More than 6 months, 30+ hrs/week

We are seeking a full stack physical AI engineer to develop intelligence systems for boats and other hardware. The role involves integrating AI with physical systems to enhance functionality and efficiency. The ideal candidate will have experience in both hardware and software development, with a strong understanding of AI technologies and their applications in real-world systems.

  • Fixed price
  • Intermediate
  • Est. budget: $150.00

I need a clean, completely deduplicated spreadsheet of all automotive-related businesses physically located within Sacramento County, CA. I do not need contact names, phone numbers, or emails. I only need the physical building addresses so I can cross-reference them with a title company and CoStar. Required Industry Targets (NAICS & Keyword Groups): Please ensure your search covers retail, specialty, and commercial B2B operations using the following classifications: Service & Repair: General Auto Repair, Transmissions, Body/Paint, Glass, Oil Change, Alignments, and Smog/Emissions Stations (NAICS 8111 codes). Wholesale & Distribution: Parts wholesalers, tire distributors, and auto wreckers/salvage yards (NAICS 4231 codes). Retail & Dealerships: New/used car dealers, retail auto parts stores, and retail tire dealers (NAICS 441 codes). Note: For map registries like Google Maps that do not use NAICS, please use the corresponding industry terms to ensure no specialty shops or wholesale warehouses are missed. Required Deliverables: Business Name, Street Address, City, Zip Code, and Primary Category. Data Cleanliness Requirement: The final list must be completely deduplicated. I want one unique row per physical building address, regardless of how many businesses operate inside it. In the case of a multi-tenant commercial building with multiple automotive tenants, please remove suite/unit numbers and deduplicate by the main street address so that each physical building is listed only once. This is for a mailing campaign, and I cannot have multiple postcards going to the same building owner. My budget is set to $150 for a complete, accurately cleaned deliverable. I am looking for quality work, not the cheapest price.

  • Hourly
  • Expert
  • Est. time: More than 6 months, Less than 30 hrs/week

Senior Healthcare Software Architect — Independent Builder Only I'm not looking for someone to invent this product. I'm looking for someone to help me finish it. I'm a healthcare professional and founder of an early-stage healthcare software company. The product is beyond the prototype stage and has undergone extensive automated testing and independent technical review. I'm looking for one experienced technical professional to help prepare the platform for secure deployment and an initial controlled pilot. My goal is to find one independent builder who enjoys working directly with a founder and helping mature a product over time—not simply completing isolated development tasks. Product-specific information will be shared only after initial screening, execution of a mutual NDA, and determination that the engagement is a good fit. Initial Engagement We’ll begin with a small paid engagement designed to determine whether we’re a good technical and working-style fit. The initial milestone will include: * Reviewing an existing repository-grounded technical and pilot-readiness assessment * Validating or challenging the highest-priority findings * Recommending an implementation approach where appropriate * Implementing the first agreed production-readiness milestone If we work well together, my intention is to continue the relationship through implementation, secure deployment, and pilot readiness. Potential Responsibilities Depending on the outcome of the initial milestone, future work may include: * Production architecture * Secure cloud or containerized deployment * Authentication and authorization * Secure handling of regulated healthcare data * Audit logging and observability * Secrets and configuration management * Reliability, testing, and operational readiness * Security and enterprise review preparation * Ongoing technical guidance as the product matures The product is currently being developed and validated using synthetic data and publicly available materials. The objective is to build a secure production-ready foundation before any real-world deployment. How I Like to Work I value thoughtful engineering and collaborative decision-making. My preferred workflow is: * Discuss implementation approaches before writing code. * Keep changes appropriately scoped. * Explain significant architectural recommendations before implementation. * Review meaningful changes together. * Maintain passing automated tests throughout development. * Preserve existing architecture unless there is a clearly justified reason to change it. If that sounds like your preferred way of working, we'll probably work well together. Independent Candidates Only I'm looking for one independent professional who will personally perform the work. I am not looking for: * Development agencies * Consulting firms * Teams * Account managers * Subcontracting arrangements * Candidates who delegate implementation to others The person who applies should be the same person who reviews the code, makes technical recommendations, performs the engineering work, and remains my primary technical contact. Required Experience Applicants must have direct experience developing healthcare or digital-health software. Strong candidates will also have experience with several of the following: * Healthcare SaaS or clinical software * HIPAA-aligned systems * AI- or LLM-enabled software * Secure cloud or containerized deployment * Authentication, authorization, encryption, and secrets management * Audit logging and observability * Production reliability * Enterprise security or vendor-review processes * Moving healthcare software from prototype or MVP into pilot or production Engagement Details * I’m more interested in finding the right long-term technical partner than selecting the lowest-cost proposal. Please recommend an appropriate initial scope and engagement structure based on your experience and proposed approach. * Additional work is expected if we are a good mutual fit. * NDA required before product-specific information or repository access is shared. * Initial repository access will be limited and expanded only as appropriate. * Occasional real-time meetings for planning and design discussions are expected, with flexibility regarding time zone. To Apply Please begin your proposal with: Independent healthcare builder Complete the screening questions included with this posting. Generic proposals, agency submissions, subcontracting arrangements, or responses that do not address the requested questions will not be considered.

  • Hourly: $100.00 - $120.00
  • Expert
  • Est. time: Less than 1 month, Less than 30 hrs/week

Overview I have a Next.js website with a newsletter signup form that currently submits directly from the browser to HubSpot's Forms v3 endpoint. I want to add a lightweight LLM-based spam filter that inspects each submission *before* it reaches HubSpot, and silently rejects (or flags) anything that looks like spam/bot/junk input. Current setup - Framework: Next.js (App Router, TypeScript, React client component) - The form component (`NewsletterForm.tsx`) POSTs directly to `https://api.hsforms.com/submissions/v3/integration/submit/[portalId]/[formGuid]` - Fields collected: `firstname`, `lastname` (optional), `jobtitle`, `email` - Portal ID and Form GUID are public form identifiers (no secrets today) What I want you to build 1. Create a server-side API route in the Next.js app (e.g. `app/api/subscribe/route.ts`) that: - Receives the form fields from the client - Runs an LLM spam/quality check (e.g. OpenAI or similar) to classify the submission as legit vs. spam — checking for gibberish names, fake/disposable emails, nonsense job titles, injection attempts, etc. - If legit → forwards the submission to HubSpot (server-side) - If spam → rejects gracefully with a generic message (no HubSpot write) 2. Update the existing `NewsletterForm.tsx` to POST to the new internal API route instead of calling HubSpot directly. 3. Keep the LLM API key server-side only (use an environment variable — never expose it to the client). 4. Preserve the existing UX: loading / success / error states should still work. Deliverables - Working API route with the LLM spam check + HubSpot forwarding - Updated form component - Brief note on which env vars to set (`OPENAI_API_KEY`, etc.) and how to configure them - Clean, typed TypeScript that matches the existing code style Nice to have (optional) - Basic rate limiting / honeypot field as a cheap first line of defense before the LLM call - Configurable spam threshold or a logged "reason" when something is rejected Requirements to apply - Strong Next.js App Router + TypeScript experience - Experience calling an LLM API (OpenAI or equivalent) from a server route - Familiarity with HubSpot Forms API is a plus To apply, please briefly answer: 1. Which LLM/provider would you use and roughly what would it cost per submission? 2. How would you handle the case where the LLM API is slow or down — do you fail open (let it through) or fail closed (block it)? 3. Have you integrated with HubSpot Forms before? (yes/no is fine)

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

We are academic researchers studying how software engineering work is organized and how it has changed over time, particularly in response to generative AI tools. We are looking to interview several software engineers about their professional experience. Any information you provide will be used as part of academic research outputs, and will not be attributed to your name or your company. Compensation: $30 fixed rate (i.e., $60/hour for a 30-minute Zoom interview) --- Who we're looking for - Currently working or recently worked (within the past 6 months) as a full-time software engineer at a company. Since we are interested in learning about your usage of AI within a software engineering team, we cannot accept individuals who do not have this form of recent experience. - Any level of seniority welcome What the interview covers - How engineering work is organized at your company (or past company) - How workflows have changed in response to AI - Your experience with tools and workflows Output - The qualitative interviews will be used to inform research hypotheses for the academic project - With permission, we would also include the information directly in the qualitative section of an academic paper, covering interviews with 30+ tech workers --- e.g., as paraphrased or anonymized quotes --- To apply, please briefly describe: 1. Your experience in software engineering roles, over the past 4 years -- company names, job titles held, and dates of positions held 2. Your availability for a 30-minute video call interview Thank you!

Posted 2 months ago
  • Fixed price
  • Expert
  • Est. budget: $120,000.00

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.

  • Hourly: $70.00 - $85.00
  • Expert
  • Est. time: More than 6 months, Less than 30 hrs/week

We need to build a hosted MCP server (Claude + ChatGPT connector) with semantic search and admin panel for our agency. ABOUT THE PROJECT We are a video strategy and production company serving B2B SaaS marketing teams. We're turning our video planning methodology (a few hundred documents plus a large library of analyzed video examples) into a hosted MCP server, so clients can plan videos from their own AI assistant (Claude and ChatGPT) and our internal team can use a deeper tier of the same system. IP protection is the point: content stays on our server, clients get answers, and access is revocable per client. WHAT YOU'D BUILD - A hosted MCP server (Streamable HTTP, always on) exposing tools for retrieval, video type recommendations, script and storyboard drafting support, brief filling, and brief submission. - Semantic search / vector retrieval over 200-300 documents plus hundreds of structured video records - Two access tiers (client vs internal), per-client credentials, revocable access, usage logging - An admin tool I can operate without a developer: content re-sync from Google Docs, batch video ingestion, client management - Integrations: Google Docs, ClickUp, and email for request intake. HOW WE'LL WORK - Independent freelancers only, no agencies. I want to work one-on-one with the person actually writing the code, from the first call to launch. - Four milestones: MVP (internal testing), private beta (per-client auth, recording transcription), personalization (per-client profiles, reliability hardening), commercial launch (billing, dashboard, rate limits). We commit milestone by milestone, starting with the MVP. - I'm a non-technical founder. I need plain-language explanations, options with tradeoffs, and predictable weekly updates. - You work independently; I test everything personally between milestones. - NDA and IP assignment required. A detailed brief goes to shortlisted candidates. YOUR PROPOSAL MUST INCLUDE 1. Rough per-milestone pricing, with the video-analysis pipeline and transcription broken out as line items. 2. Recommended stack and architecture, with reasoning a non-developer can follow. 3. One-time build cost vs ongoing monthly costs (hosting, vector database, APIs). 4. Timeline per milestone and your weekly availability. 5. Your assumptions and what you'd need from me. 6. MCP servers or AI integrations you've built (links or descriptions) Proposals that skip per-milestone pricing won't be considered.

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

GenEnterprises is a healthcare technology company seeking a specialist to validate patient-access APIs. The role involves ensuring seamless integration with healthcare systems and verifying API functionality. The ideal candidate will have experience in healthcare technology and API validation, with a strong understanding of data security and compliance. What you'll do (per vendor) -Discover the vendor's SMART-on-FHIR endpoints from their conformance statement (/metadata) or .well-known/smart-configuration. -Complete a provided configuration file with the correct authorize/token/FHIR endpoints and patient-access scopes. -Run our provided validation harness against the vendor's sandbox and prove the full authorization flow completes end-to-end — either public-client (PKCE) or confidential-client (client secret) depending on the vendor: authorize → code → token exchange → patient context. -Document any vendor quirks (audience value, extra scopes, non-standard discovery, sandbox limits). What we provide -The validation kit (a small Node harness + config template + rules — runs locally). -The sandbox credentials for the vendor: a client_id, plus a client_secret for confidential vendors, and the registered redirect URIs. -Sandbox access details and the specific vendor to start with. Deliverables -A completed connector configuration — patient-scoped only. Public vendors carry no secret; confidential vendors carry only the sandbox secret we provide (never a production secret). -The endpoint-discovery source you used (the /metadata or .well-known URL). -Evidence of a successful sandbox run: the harness "PASS" page/screenshot and console output showing an access token and a resolved patient ID. -Confirmation the registered redirect URI matches the config exactly. -Notes on any vendor-specific quirks. Requirements -Hands-on experience with SMART-on-FHIR patient-access authorization. -Solid understanding of OAuth 2.0 Authorization Code, both PKCE (public client) and client-secret (confidential client) flows, and when each applies. -Comfortable reading FHIR R4 conformance statements to locate endpoints and scopes. -Enough Node.js to run a provided harness (npm install, edit a JSON config, npm start). -Precise and evidence-driven — you prove things work rather than assuming. Nice to have -Prior integration with EHR/health-data vendors (Veradigm/FollowMyHealth, athenahealth, Epic, Cerner/Oracle Health, Aetna, or similar). -Familiarity with patient access APIs and healthcare interoperability standards. What you will NOT have access to (and won't need) -No production systems, no real patient data — everything is sandbox/synthetic. -No access to our codebase or database — the kit is fully standalone. -No vendor account administration — we own the developer registration; you receive the sandbox credentials only. This keeps the engagement clean and low-risk for both sides. An NDA is required before we share the kit. Engagement -Fixed price per vendor. First vendor is a paid pilot (budget: $[SET BUDGET]); strong work leads to ongoing per-vendor engagements. -Remote, flexible hours. Turnaround for the pilot is typically a few days once you have the sandbox credentials. To apply — please answer these (applications without answers will be skipped) -Which EHR vendor sandboxes have you completed a SMART-on-FHIR patient-access OAuth flow against (PKCE or client-secret)? Name them. -Given only a FHIR base URL, how do you find the authorize and token endpoints? -In one or two sentences: what is the difference between a public and a confidential OAuth client, and when would you use PKCE?

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