Join our team as a senior AI Architect working closely with our product and engineer teams to design practical AI capabilities within our SaaS platform. This is a hands-on role focused on building reliable, production-grade conversational and AI-assisted features — not experimental research projects. You will work closely with product and engineering teams to design scalable AI patterns, integrate modern LLM technologies, and help shape how AI capabilities are embedded into real operational workflows. You will focus deeply on architecture, implementation quality, reliability, usability, scalability, observability, and operational robustness. This role is ideal for someone who understands both modern AI tooling and the realities of shipping enterprise SaaS software in production environments. We value people who can think critically about architecture, tradeoffs, operational realities, and long-term maintainability — not just prototype AI demos.

Overview We're an independent research project building a wearable assistive device that delivers graded haptic (vibration) guidance cues to help a runner with visual impairment stay on course. We already have a working software simulator and a defined design direction — we now need an engineer to build a physical, body-worn prototype that a person can actually wear and test while running. This is a build-to-spec engagement: the concept and design come from our team, and you provide the engineering and fabrication to bring it to life. Scope — Functional prototype Functional prototype from off-the-shelf components (microcontroller, motion sensing, haptic actuator array, battery) Firmware implementing our cueing logic A wearable form factor (belt or vest) that stays securely in place and tolerates motion and sweat 1–2 working units we can field-test in controlled, supervised conditions Required skills Embedded firmware (C/C++) on ESP32, nRF52, or similar; BLE Haptic feedback — driving a vibration-motor array with graded, spatial patterns (e.g., DRV2605 or equivalent) IMU/motion-sensor integration Comfortable taking a concept to a working, body-worn prototype quickly Strong pluses e-textile / smart-garment or soft-goods integration (or a partner who handles it) Prior wearable or assistive/accessibility device work Basic mechanical/enclosure design Mission-driven research prototype, not a funded product launch — budget is reasonable but lean; we value resourcefulness and clear communication.

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.

We are seeking an experienced Optical Engineer with Zemax experience to help develop an adaptive vision heads-up display (HUD) system that combines prescription vision correction, adaptive optics, and windshield projection technology. The ideal candidate has experience with optical system design, lens modeling, HUD/AR displays, imaging systems, waveguides, photonics, or adaptive optics. This project is currently at the prototype stage and already includes functioning electronics, display hardware, sensors, and adaptive lens hardware. We are now seeking expertise specifically in optical architecture, lens design, image quality optimization, and HUD optical performance.

Description (~30-50 hours over 3 months): We're building a compliance-critical capital-markets platform (commercial real estate) on Postgres/Supabase — multi-tenant, invitation-based access, append-only audit trail, signed-link document access. We need a security-focused senior engineer as our independent data-layer reviewer: you review and sign off, you don't write the product code. The codebase is written by AI coding agents under a governed pipeline (agents open PRs only; every merge is human; security-surface work happens in gated, supervised sessions). Your job is to audit agent-written SQL and policies with full rigor — provenance is a reason for more scrutiny. If AI-written code puts you off, or impresses you into leniency, this isn't the engagement. The work, in three review gates: Foundation pass (first, ~8–16 hrs, scheduling in 2–4 weeks): schema for two distinct permission families; invitation-based RLS policies plus their 36-test adversarial suite (negative tests, fail-closed lint, no-auto-expose probes); append-only audit enforcement; signed-URL issuance module. This review gates real customer data entering the system. Includes a short threat-model working session at the start. App-surface pass (~4–8 weeks out, ~6–12 hrs): storage/VDR access paths, document permissions, onboarding gates. Visibility pass (~8–12 weeks out, ~8–16 hrs): criteria-based visibility — the "wrong stranger sees a teaser" bug class. Optional light advisory retainer between gates. You have: Deep, hands-on Postgres RLS experience in production multi-tenant systems — you can articulate how RLS schemes fail silently and how to test for it Supabase-specific experience strongly preferred (auth model, storage signed URLs, PostgREST exposure surface) An adversarial review style — you try to break isolation, not read for style Experience with regulated or financial data (audit trails, access evidence) preferred Clear written findings a non-technical founder can act on Engagement: hourly, no FTE conversion expected. Findings delivered as written reports; fixes are implemented by our pipeline and re-reviewed by you. Remote, async-friendly, US-hours overlap helpful.

# Senior Industrial Designer / CAD Engineer (Organic Consumer Product + DFM Experience) We are looking for an experienced Industrial Designer / CAD Engineer with strong **Design for Manufacturing (DFM)** experience to help finalize the design of a premium consumer beauty product for injection molding. This project is **not a concept design from scratch**. We have already gone through multiple design iterations and are looking for someone with the technical and aesthetic skillset to bridge the gap between our existing prototypes and a final production-ready CAD file. ## What Currently Exists * Original 3D scans of the reference comb that inspired the project * Existing ZBrush files * Existing SolidWorks files * First-generation 3D printed prototype * Second-generation 3D printed prototype * Second-generation prototype with hand-sculpted DAS air clay modifications illustrating desired refinements to the final form The primary challenge is accurately translating these physical refinements into a manufacturable CAD model while preserving the subtle ergonomic and aesthetic qualities of the object. ## Current Challenges Our previous design team utilized separate ZBrush and SolidWorks designers, and we believe the transition between those workflows introduced inaccuracies and compromises to the form. In particular: * We do not believe the original tooth geometry was accurately recreated from the scanned reference. * We need to preserve the performance characteristics of the original comb while elevating the overall industrial design and ergonomics. * The final form must feel like a premium beauty product while remaining optimized for injection molding. ## Scope of Work * Refine and finalize the existing 18-tooth comb design * Reconstruct a second 22-tooth version based on the original scanned reference geometry * Ensure both versions are optimized for injection molding and manufacturing * Work collaboratively through multiple refinement iterations using physical prototypes * Help create a complementary wall-mounted shower holder/base that integrates with the final comb design (basic sketches already exist) ## Ideal Candidate We're specifically looking for someone with experience in: * Industrial design * Organic surface modeling * Consumer products * Beauty or personal care products (preferred) * Injection molding * Design for Manufacturing (DFM) * Translating physical prototypes into production-ready CAD geometry * ZBrush and SolidWorks (or equivalent surfacing workflows) ## Location **Strong preference for candidates located in New York City or the Tri-State area.** We believe this project will require in-person collaboration to review physical prototypes, compare them against the original reference object, and make nuanced ergonomic and aesthetic refinements that are difficult to communicate remotely. ## Timeline Timing is a priority. We are looking to begin immediately and move through this refinement process as quickly as possible with the right partner. If you have experience bringing high-end consumer products from prototype to production and are comfortable balancing organic aesthetics with manufacturability, we'd love to hear from you. Please include examples of relevant consumer product work and any injection-molded products you've helped bring to market.

Senior HIPAA Infrastructure Engineer We are building modern telemedicine and healthcare infrastructure focused on performance, scalability, security, and compliance. We are looking for a senior-level infrastructure engineer who understands how to architect and manage secure healthcare environments while maintaining fast website and application performance. This is NOT a basic web hosting or sysadmin role. You should understand: * HIPAA environments * healthcare infrastructure * cloud architecture * server performance * security hardening * DevOps workflows * modern web application infrastructure * scalable hosting environments * APIs and integrations * modern frontend/backend ecosystems Our stack may involve: * PHP * WordPress * React / Next.js * APIs * Docker * server-side tracking * cloud infrastructure * telemedicine applications * secure patient workflows We need someone who can help architect the right infrastructure decisions long-term. Responsibilities Infrastructure & Cloud * Architect and manage cloud/server infrastructure * Configure scalable hosting environments * Optimize uptime, reliability, and performance * Setup staging/development/production workflows * Infrastructure planning and documentation * Monitoring and alerting systems Security & HIPAA * Secure healthcare infrastructure * Server hardening * Access control and permissions * SSL/TLS configuration * Firewall and WAF setup * Backup and disaster recovery systems * Audit logging and monitoring * Secure API/webhook handling * HIPAA-conscious infrastructure planning Performance Optimization * Improve website/application speed * Diagnose server bottlenecks * Optimize Core Web Vitals * CDN and caching optimization * Database optimization * Infrastructure scaling * High-traffic performance tuning Development Infrastructure * Docker/containerized workflows * CI/CD pipelines * Deployment automation * Development environment management * Infrastructure support for React/PHP applications Requirements You should have strong experience with: * AWS * DevOps * HIPAA environments * Network/security best practices * Infrastructure management * Server administration * Performance optimization * Modern hosting environments * Docker * APIs and integrations * Telemedicine * Healthcare startups * WordPress optimization * React/Next.js hosting * Cloudflare * Server-side tracking * HIPAA marketing systems What We’re Looking For * Senior-level thinker * Strong communicator * Proactive and highly organized * Security-minded * Performance-focused * High ownership mentality * Able to troubleshoot complex infrastructure issues * Able to think long-term about scalability and architecture We are looking for someone who can become a long-term infrastructure partner, not just complete random tasks. To Apply Please send: 1. A Loom video introducing yourself 2. Examples of healthcare/HIPAA infrastructure you’ve worked on 3. Details about your AWS and DevOps experience 4. Performance optimization examples 5. Your preferred infrastructure stack 6. Your availability 7. Your hourly rate or monthly retainer Please put: “Optimized” at the top of your proposal so we know you read the full posting.

Mechanical Design Engineer – PTC Creo (Pro/E) – Inkjet Printer Service Station About the Project Addmaster Corporation is seeking an experienced Mechanical Design Engineer proficient in PTC Creo (formerly Pro/ENGINEER) to assist with the development of a next-generation thermal inkjet printer mechanism. We are designing a new service station for a thermal inkjet print engine and are looking for an engineer who can transform engineering concepts into robust, manufacturable mechanical designs. This is a 2–3 month contract with the possibility of additional work as the project progresses. What You'll Do Working closely with our engineering team, you will: Design a precision service station for an HP thermal inkjet printer. Develop complete 3D models and detailed manufacturing drawings using PTC Creo. Refine engineering concepts into production-ready mechanical designs. Participate in design reviews and contribute practical design improvements. Design components suitable for machining, sheet metal fabrication, plastic injection molding, and 3D printing. Build and evaluate prototype components using our in-house 3D printers. Assist with prototype assembly and testing. Recommend and source commercially available components such as bearings, springs, fasteners, sensors, motors, gears, and linear motion components. Work with our engineering team to improve reliability, manufacturability, cost, and ease of assembly. Required Qualifications Expert proficiency using PTC Creo / Pro-E. Strong mechanical design experience. Experience creating production-ready mechanical assemblies. Knowledge of GD&T, tolerance analysis, and Design for Manufacturing (DFM). Experience designing precision mechanisms. Excellent communication skills and the ability to work collaboratively with a small engineering team. Preferred Qualifications Experience with one or more of the following is highly desirable: Inkjet printing systems Printer mechanisms Service stations Printhead maintenance systems Work Location This position is not intended to be fully remote. While some design work may be completed remotely, the successful candidate should be able to work on-site at our engineering facility in Monrovia, California, as needed. Hands-on collaboration is an important part of this project. You will have access to: Working printer mechanisms Prototype hardware In-house 3D printers Engineering test equipment Our mechanical and electrical engineering teams Being able to inspect prototypes, participate in design reviews, and iterate designs quickly with the team is a significant advantage. Candidates located in Southern California, or those willing to travel to Monrovia on a regular basis, are strongly preferred. Project Details Duration: Approximately 2–3 months Schedule: Approximately 40 hours per week (flexible) Contract Type: Hourly or Fixed Price NDA required before project details are shared About Addmaster Addmaster Corporation develops innovative specialty printing systems for healthcare, banking, industrial, and OEM applications. Our products combine precision mechanical engineering, electronics, embedded software, and thermal inkjet technology to solve challenging real-world problems.

We're looking for a senior mobile engineer with real native iOS and Android depth to build the mobile experience for a secure healthcare app. The mobile app is the main product, and the standout features — Apple Wallet passes, home-screen widgets, Live Activity / Dynamic Island — are native OS extensions that can't be built in JavaScript. This is not a "React dev who also does some mobile"; it's a real mobile engineer. The app serves healthcare field representatives who need secure mobile workflows for managing documents, credentials, status visibility, and access in the field. What you'll own: - Web: React + TypeScript, working against an API client generated from the backend so the two never drift - Mobile (cross-platform): React Native + Expo for shared app UI and logic - Mobile (native): the real differentiators — Apple Wallet passes (PassKit), home-screen widgets (WidgetKit), Live Activity / Dynamic Island (ActivityKit) — native iOS (Swift) and Android (Kotlin) - On-device security: storing credentials safely with platform secure storage (Keychain/Secure Enclave on iOS, Keystore/StrongBox on Android) Must have: - React and TypeScript (modern hooks, a server-cache library like TanStack Query) - React Native and Expo, ideally on the current New Architecture - Real native iOS (Swift) and Android (Kotlin) experience, not just JS wrappers - App Store / TestFlight / Play Console release experience - On-device secure storage (Keychain/Keystore) awareness Strongly preferred: - Apple platform extensions: PassKit, WidgetKit, ActivityKit (Live Activity) - Working against a generated / contract-driven API client - Monorepo and shared-package experience - Front-end testing discipline

Project Description: I am looking for a licensed Professional Engineer in Texas to review and PE stamp a set of mechanical/plumbing drawings for a solar panel production line. TIEMLINE IS ONLY A FEW DAYS The drawing package includes: 1. HVAC Drawing Set The HVAC set includes HVAC symbols, abbreviations, general notes, air systems notes, ductwork requirements, code notes, and related mechanical/HVAC sheets for the project. 2. Plumbing / Compressed Air / Nitrogen Drawing Set The plumbing set includes compressed air and nitrogen piping drawings, equipment connection details, riser diagrams, and plumbing specifications. The scope includes providing compressed air and nitrogen supply to the production line equipment. Required Services: The selected engineer will be responsible for: Reviewing the HVAC and plumbing/compressed air/nitrogen drawing packages for code compliance, completeness, and technical accuracy. Providing comments or redlines if revisions are required before stamping. Reviewing the final revised drawings after comments are addressed. Providing a Texas PE stamp/seal and signature suitable for permit submission, if the drawings meet applicable requirements. Confirming whether any additional calculations, specifications, equipment data sheets, or code-compliance documentation are required before stamping. Project Details: Jurisdiction: Houston, Texas Code references shown in the drawings include Houston/Texas building, mechanical, plumbing, and energy code requirements. The plumbing notes state that plumbing work shall meet Houston Texas Building Code 2021 requirements with applicable amendments and Houston mechanical/plumbing codes. Must Have Qualifications: Texas licensed Professional Engineer in Mechanical Engineering or related discipline. Experience with commercial/industrial HVAC and plumbing permit drawings. Experience with compressed air and nitrogen distribution systems is preferred. Familiarity with Houston permitting requirements is preferred.