Usability testing jobs

I have a handful of projects that I'm working on via LLM up to this point, and I've found critical errors in the testing it designed for the debugging process in one, so I need them all audited to make sure they so what they're intended to do and there are no back doors or other issues written into the code that will compromise potential user security or core functionality. I will need to maintain IP ownership of any and all parts of this project in perpetuity, so that will need to be agreed to explicitly in writing. Reviewer will be first choice for any work to be done on the apps. I know the network monitor is fairly buggy, but the anti-surveillance tool appears to be working. Need a second set of eyes though, as my technical acumen is not very advanced, hence usin...

...significant money? 9. What experience do you have with YouTube, creator/influencer partnerships, affiliates or referral marketing? 10. How would you track whether individual creators actually generate registrations, returning users and revenue? 11. What EXACTLY will you personally deliver during the first 30 days for your bid? 12. What advertising budget would you recommend for initial testing? 13. If testing succeeds, what would you recommend as an ongoing monthly marketing budget? 14. Do you have experience/familiarity with astrology, tarot, spirituality, relationships or self-discovery audiences? Helpful, but NOT required. PLEASE DO NOT SEND A GENERIC COPY-AND-PASTE PROPOSAL. I am looking for someone entrepreneurial, creative, analytical and aggressive about gro...

TITLE: PCB testing and firmware development for acoustic transducer ---------------------------------------------------------------------------------------------------------------- THIS PROJECT HAS TWO PARTS *. Existing PCB Verification, Testing & Validation *. Developing firmware (for STM32) for the burst generation & echo processing Existing PCB Verification, Testing & Validation -------------------------------------------------------------------------- There is a PCB which is already designed & developed, to drive the "underwater ultrasonic transducer". We have the PCB. This PCB needs verification, testing, and validation in all aspects, such as voltage, current, any defects, leaks etc.. The goal is to confirm the manufactured boar...

...Process high-volume financial data streams in real time * Detect anomalies using AI-driven models (not rule-based systems) * Generate actionable risk intelligence * Operate under strict performance, latency, and scalability benchmarks Mock pipelines, placeholder logic, or simulated outputs will be treated as non-delivery. ⸻ Budget & Payment Structure – $45,000 Fixed $40,000 – Advance Payment (Testing Phase Funding) * Paid upfront upon project commencement * Intended to fund development, infrastructure, and execution Important: * This payment does not constitute delivery, acceptance, or completion * It does not waive any performance, scope, or deployment requirements * It does not limit the Client’s rights in the event of non-delivery or breach ⸻ $5,...

...Survival. This clause survives termination of the contract. 8. Strict no partial acceptance. There is no partial acceptance of work and no payment beyond the Milestones expressly set out above for incomplete or partially functional deliverables. "Substantial completion" or "near completion" does not qualify. Completion of individual components does not entitle the Freelancer to proportional payment. Testing, feedback, or engagement from the Client does not itself constitute acceptance. Acceptance occurs only upon full completion of the Deliverables as set out in this posting. 9. Refund rights (material breach). Failure to deliver a complete, working system as specified in this posting constitutes material breach. This includes missed delivery obligations, a no...

...caching where appropriate, and consistent error handling when a model fails to return a result. This is a pure backend/API service — no UI work involved. Key requirements: • Strong backend/API development skills (Python, Java, or C#) • Experience serving ML models via API (e.g. FastAPI, TorchServe, Triton, or similar) • Comfortable working with request queuing and rate-limiting under load • Solid testing discipline for API and pipeline reliability Deliverables: • Working inference API endpoint(s) with versioned model routing • Request queuing/rate-limiting and error-handling logic • Test suite covering standard and edge-case inputs Payment Structure — £1,350 GBP Fixed, 3 Milestones Milestone 1 – Advance Payment: &poun...

...Survival. This clause survives termination of the contract. 8. Strict no partial acceptance. There is no partial acceptance of work and no payment beyond the Milestones expressly set out above for incomplete or partially functional deliverables. "Substantial completion" or "near completion" does not qualify. Completion of individual components does not entitle the Freelancer to proportional payment. Testing, feedback, or engagement from the Client does not itself constitute acceptance. Acceptance occurs only upon full completion of the Deliverables as set out in this posting. 9. Refund rights (material breach). Failure to deliver a complete, working system as specified in this posting constitutes material breach. This includes missed delivery obligations, a no...

...Code quality: strongly-typed components, sensible folder structure, linting and formatting already configured. Keep native modules to a minimum—only introduce them when a pure JavaScript approach can’t achieve the needed performance or platform integration. • Maintainability: shared UI elements should live in a small design-system folder; business logic tucked behind hooks or services for easy testing. Deliverables 1. Complete React Native (TypeScript) project in a private Git repository. 2. README with setup, run, and build instructions plus notes on any native modules chosen. 3. Short Loom walk-through showing authentication, tab navigation, offline behaviour, and syncing. I’ll provide: • Postman collection + OpenAPI spec. • High-f...

...full-time commitment for the duration of the contract. Key Responsibilities Complex Prompt Creation: Craft detailed, highly realistic scenario prompts rooted in actual accounting workflows — reconciliation and month-end close, AR/AP management, payroll processing, BAS/tax preparation, financial statement review, chart-of-accounts restructuring, and multi-entity reporting in QuickBooks. AI Model Testing: Execute prompts directly within the AI platform to surface failure modes, hallucination triggers, and reasoning gaps. Continuously iterate and escalate task complexity to rigorously evaluate performance. Rubric & Checklist Authoring: Write objective, self-contained scoring checklists and rubrics supported by explicit reference sources and justifications so peer review...

...Survival. This clause survives termination of the contract. 8. Strict no partial acceptance. There is no partial acceptance of work and no payment beyond the Milestones expressly set out above for incomplete or partially functional deliverables. "Substantial completion" or "near completion" does not qualify. Completion of individual components does not entitle the Freelancer to proportional payment. Testing, feedback, or engagement from the Client does not itself constitute acceptance. Acceptance occurs only upon full completion of the Deliverables as set out in this posting. 9. Refund rights (material breach). Failure to deliver a complete, working system as specified in this posting constitutes material breach. This includes missed delivery obligations, a no...

...Search • Recently Watched • Continue Watching • Settings The exact design can depend on the existing player being customized. DESIGN STYLE The design should be: • Dark • Modern • Clean • Professional • Easy to read on a television • Fast and simple to navigate I am not expecting a completely unique UI if an existing high-quality player is being customized. I care more about reliability, usability and performance than whether every screen was designed from scratch. APK / DISTRIBUTION The finished app must be delivered as an APK. It should install and work on: • Amazon Fire Stick • Amazon Fire TV • Android TV • Google TV • Android-based TV boxes Customers should be able to install it through Downloader...

...Fettling/Grinding → Machining → Welding → Pressure Testing → Inspection → Packing → Dispatch Our major product priorities are: Copper Tuyeres Tuyere Coolers Cooling Plates Other Copper Castings Brass Castings Aluminium Castings Fabrications The layout should particularly optimize the manufacturing flow of copper tuyeres, tuyere coolers and cooling plates, while also accommodating other products. Existing Factory The existing factory currently contains areas including: Raw material storage Cutting Induction furnace/melting Moulding Core making Casting Fettling/grinding Sand preparation Shot blasting Welding Machine shop Multiple lathes Boring machines Drilling machines CNC machine Hacksaws Shaper/planner Water pressure testing Water flow ...

...They use Tapestry for UM, while enrollment and claims are still processed through IDX. They already have an outbound 278 from Epic to IDX but now need to establish new outbound 278 integrations to six delegated health plans for the CMS-0057 requirement. The engagement is primarily to take those six payer integrations through build/configuration, payer-specific requirements and companion guides, testing, defect resolution, and production readiness. They're targeting completion around mid-November....

...and fine-tuning the fermentation profile until we achieve repeatable, high-quality idli batter performance. Experience with lactic-yeast co-cultures, GRAS regulatory considerations and small-to-pilot scale transfer will be valuable. Deliverables • Detailed development plan outlining target phenotype for idli fermentation • Laboratory protocols for strain construction, screening and stability testing • Data package showing performance against current benchmark cultures (rise time, pH shift, sensory notes) • Recommendations for scale-up, shelf-life maintenance and starter culture preservation (freeze-drying or other) Acceptance criteria • Strain must complete batter fermentation within 6–8 h at 30 °C • Final batter pH 4.3 ±...

I run a growing...From there, zero-in on landing page optimisation—headline hooks, trust elements, on-page SEO harmony, layout tweaks, speed gains, all the small hinges that swing big doors. Key milestones • Competitor traffic & funnel audit with Similarweb data • Written prioritised roadmap to raise conversions (quick wins + long-term plays) • Redesigned or wire-framed landing page variation ready for A/B testing • Implementation guidance and performance check-in after the first test cycle I’ll supply full analytics access, historic campaign data and creative assets. You bring the strategic eye, crisp copy instincts and a track record of lifting CBD or similarly regulated-niche brands above the noise. Let’s convert more of what we...

... Generate high-quality leads and genuine customers, not just clicks or impressions. The freelancer will be responsible for: * Meta/Facebook & Instagram advertising * Google Search Ads * Audience research and targeting * Keyword research * Ad copy and creative recommendations * Landing-page recommendations * Conversion tracking * Pixel/GA4 setup and optimization * Retargeting campaigns * A/B testing * Weekly performance reporting * Cost-per-lead and customer acquisition optimization Target Markets Primary: USA Secondary: India and selected international markets where the service can legally operate. Important Compliance Requirements We only want legitimate transactions involving legitimately obtained gift cards. The marketing strategy must not target or encourage: * St...

I already have a complete spearfishing reel model that was delivered in a previous project; the only thing missing for perfect usability is the handle’s proportions. I need that single element resized so the grip feels balanced in the water and clears the diver’s glove without adding bulk elsewhere in the reel assembly. You’ll start from my existing 3D file (STEP + STL) and adjust the handle dimensions as we discuss—primarily overall length and knob diameter—while preserving the current mounting interface and aesthetic lines. Once the new dimensions are approved, please return updated source files, a watertight STL for print testing, and a quick drawing showing critical measurements so I can verify it on my end. If you’re comfortable iter...

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...Monitor and optimize open rates, reply rates, and deliverability Provide regular performance reports Required Skills: Proven experience building cold email infrastructure at scale (10,000+ emails/day) Strong grasp of deliverability and domain/mailbox setup Experience with tools like Instantly, Smartlead, Apollo, or Lemlist Ability to write high-converting copy tailored to ICP and buyer persona A/B testing experience for subject lines and email copy We have 2 requirements before applying: Share a sample email template targeting our services (Website Design, Web Development, Digital Marketing, or Hosting) that you've previously used in a real campaign, along with performance proof (open/reply rate or screenshot). An A/B test template — two email variations with two s...

...Python/FastAPI or Node.js for the backend, React/ for the frontend, and LangChain or LlamaIndex where appropriate. We are open to better technical recommendations. *Deliverables* * Fully functional RAG chatbot * Frontend chat interface and admin dashboard * Backend APIs and vector database integration * Secure production deployment * Complete source code * Setup and deployment documentation * Testing and post-launch bug support When applying, please include: 1. Examples of RAG or AI chatbot projects you have completed 2. Your recommended architecture and technology stack 3. How you will reduce hallucinations and verify answer quality 4. Estimated timeline and fixed-price cost 5. Your availability for future improvements Please start your proposal with *“RAG READY&rdquo...

...* Terraform; * GitHub Actions; * CI/CD; * separate development, staging and production environments. Architecture preference: **modular monolith**, no unnecessary microservices. ### Testing * unit tests; * integration tests; * Playwright end-to-end tests. ## Required Experience Please apply only if you have strong experience with: * senior full-stack development; * React / ; * TypeScript; * Node.js backend development; * PostgreSQL; * REST API design; * authentication and role-based access; * admin / back-office systems; * production deployment; * Git / pull-request workflows; * automated testing; * building software from architecture to production. ## Very Important Experience We are especially interested in developers who have built: * price comparison websites;...

...mobile UI * Proper loading, error and empty states * Push notification support * API-based synchronization * Reliable state management * Production-ready implementation * Testing on both iOS and Android ## Deliverables * Complete React Native mobile application * iOS build * Android build * Existing booking API/backend integration * Student authentication and profile * Student dashboard * Teacher directory and profiles * Booking functionality * Booking history * Lesson details * Learning content screens * Learning progress * Push notifications * Source code * Basic technical documentation * Assistance with deployment and testing ## Important Before Development Before development begins, the developer will review the existing booking API/backend and workflow to understa...

... • Refresh or retrain the underlying data models; I’ll provide sample email logs for you to fine-tune on. Interface refinement Right now the layout is functional but clunky. I want the overall user experience to feel intuitive—fewer clicks from draft to send, clearer confidence scores, and in-context editing without hunting through sub-menus. Visual design tweaks are welcome if they help usability, but the prime target is UX flow. Tech stack The current build sits on a Python backend with FastAPI, PostgreSQL, and a lightweight Vue front end, all containerised in Docker. If you prefer alternative tools for the NLP layer—SpaCy, Hugging Face Transformers, OpenAI API—spell out why and how you’d integrate them. Deliverables 1. Updated codeb...

...tags: Intuit QuickBooks · Accounting · Python · API Integration · Financial Analysis · Data Management · SQL Budget: Fixed price, milestone-based. Bid the full scope. Timeline: 3–4 weeks from kickoff. What I need A reproducible synthetic dataset for a fictitious solid-waste hauling company, covering 24 consecutive months of operations. This is for internal staff training, reporting/BI sandbox testing, and month-end close practice. No real company, customer, vendor, or employee data will be used or accepted. The scope has two linked layers: Financial layer — a populated QuickBooks company file (GL, AR, AP, payroll, fixed assets). Operational layer — the underlying service, tonnage, container, and route data that the ...

Current Website: Design: Custom redesign in Figma Development: Shopify Scope Premium redesign of the existing Shopify website in Figma. Improved homepage, navigation, and product presentation. Mobile-responsive desig...homepage, navigation, and product presentation. Mobile-responsive design and optimization. Existing Store Locator integration. B2B/Wholesale setup with retailer registration. Wholesale pricing and order functionality. Improved customer journey and overall user experience. Speed and performance optimization. Basic on-page SEO setup. Shopify development and implementation of the approved Figma design. Testing across desktop and mobile devices. Final Delivery A redesigned, responsive, optimized Shopify website ready for customers and wholesale retailers.

...WooCommerce + custom theme A custom frontend/backend can be proposed if there is a strong technical reason. The platform must be scalable from 100 products to 5,000+ products and from hundreds to 1,000+ monthly orders. 18. LEGAL/INFORMATION PAGES Create: • About Us • Contact Us • Privacy Policy • Terms & Conditions • Shipping Policy • Return & Refund Policy • Cancellation Policy • FAQ 19. TESTING Before final delivery, test: • Product browsing • Search • Filters • Cart • Coupons • Checkout • UPI • Cards • COD • Payment failure • Refunds • Shipping • Tracking • Email notifications • WhatsApp integrations • Mobile responsiveness • Analytics •...

I run a South-African SaaS platform that lets companies of any size discover public and p...and cost per acquisition Success is measured by realistic growth in qualified sessions, trial registrations and conversions to paid plans—please indicate targets you believe are attainable on our budget. When you reply, attach or link to at least two campaigns you have run for SaaS, B2B or tender-related services, and outline: 1. Your day-to-day approach (how hands-on you are with tweaks and testing) 2. The budget breakdown you recommend across channels and creative 3. Expected milestones and deliverables over the 30-day window I’m after a partner who treats this like their own money, optimises relentlessly and can prove it with transparent reporting. If that sounds like ...

...website. I need a specialist who can plan, launch, and continuously optimise campaigns on Facebook and Instagram, making full use of Meta Ads Manager, the Meta pixel, and standard best-practice targeting techniques. The job begins with reviewing my current funnel and audience insights, then building a campaign structure that can scale: ad sets segmented by objective, creative variations for testing, and clear UTM tracking so results feed cleanly into Google Analytics. I’ll supply brand guidelines and any existing creative assets; you’ll advise what’s missing and help refine copy or visuals to hit performance benchmarks. Deliverables I expect: • Turn-key campaign setup in Meta Ads Manager (Facebook + Instagram) • Pixel and event tracking verified o...

Hi, thanks for reaching out. Based on the requirements discussed, here’s my quote for the web development work: Web Development — $250 Includes: Responsive website development Front-end implementation Basic backend/API integration Mobile and desktop compatibility Basic testing and bug fixes Deployment assistance Estimated delivery: 5–7 business days Revisions: Up to 2 rounds Please let me know if you’d like to proceed, and I can provide the next steps.

Complete branding and website redesign for Chris Dixie Photography, including a new professional logo, modern Figma website design, and responsive WordPress development. The project will focus on creating a sophisticated, clean, and image-led visual identity that reflects the client’s urban photography style. It will include portfolio and gallery setup, content integra...redesign for Chris Dixie Photography, including a new professional logo, modern Figma website design, and responsive WordPress development. The project will focus on creating a sophisticated, clean, and image-led visual identity that reflects the client’s urban photography style. It will include portfolio and gallery setup, content integration, mobile responsiveness, WordPress CMS configuration, testing...

Performance Marketing Specialist – Meta Ads We are looking for an experienced Performance Marketer to manage and optimise Meta Ads (Facebook & Instagram) for our brands. Responsibilities Plan, execute and optimise Meta Ad campaigns Manage campaigns for e-commerce, workshops and service-based lead generation Handle audience research, retargeting and creative testing Monitor and improve ROAS, CPL, CPA and conversions Analyse performance and continuously optimise campaigns Work with the creative team to develop high-performing ad creatives Scale successful campaigns while maintaining efficiency We’re Looking For Proven hands-on experience with Meta Ads Manager Experience with e-commerce + service-based businesses Strong understanding of Meta Pixel, conversion tracking...

...progress and completion - Onboarding progress/status tracking - Basic assessments/tests and completion logic - Driver profile/account functionality - Driver support/query functionality - Notifications/updates functionality - Basic admin functionality for our internal team - Allow administrators to manage users, training/content and relevant statuses - Appropriate document/content storage - Testing, bug fixing and production hardening - Build the final Android application - Assist with Google Play deployment - Configure the required production environment - Provide documentation and handover on completion Supabase or a similar cost-effective backend solution is preferred, although we are open to recommendations from an experienced developer. Existing Build The atta...

...DMX lighting system configuration - Setup and configuration of lighting fixtures and moving heads - Initial ballroom scene development - Lighting sequences and show playback setup - Gobos/logos and editable event elements - Reusable lighting controls and scene structure - Testing the workflow to ensure the scenes operate correctly Second Milestone — $200 The remaining milestone will cover: - Completion of the remaining ballroom designs - Final lighting sequences and adjustments - Scene consistency and optimization - Testing across the completed designs - Final corrections and project delivery The goal is to create a reusable UE5 + DMX environment where the 20 ballroom designs can be presented and controlled efficiently, rather than treating each scene as a comple...

...hero spots (15s/30s) for YouTube, Meta, and paid social cutdowns. • Always-on UGC/micro-influencer pipeline: 8–15 creator assets per month, usage rights cleared for ads. • Menu-item modules: product-first cuts that plug directly into catalog and Shopping creative. • Franchise module: founder/operator story, unit economics narrative, and “apply” CTA—kept visually distinct from guest ads. • Testing cadence: hooks, first frames, offers, and end cards rotate weekly; losers are killed inside seven days. 6. Technical foundation (week one) 1 Business Manager / MCC audit: pixels, CAPI, enhanced conversions, domain verification, catalog quality, event match rates. 2 Facebook Shop catalog hygiene: titles, images, prices, availability, coll...

I’m revamping the interface of an AI-powered chat application. The product already works well, but its current look is plain. I...Conversation list / navigation panel – Settings and any auxiliary screens 2. Component library and style guide defining colours, type scales, spacing and interaction states 3. Handoff assets ready for engineering: organised layers, design tokens or equivalent, plus motion specs for micro-interactions Acceptance criteria • Consistent visual system across all screens and modes • Clear usability in both desktop and responsive layouts • Final files delivered in editable format with all assets grouped and labelled If this sounds like your kind of project, let’s create an interface that makes our users feel ...

I’m rolling out the first customer-facing release of our U.S. start-up product and need a React specialist who treats testing and quality assurance as the heartbeat of every commit. Here’s the landscape Our REST APIs are live, wire-ready, and I have high-fidelity Figma screens waiting. Your code should translate those pixels into clean, reusable React components (hooks, context, TypeScript welcome) while keeping performance lean. Quality first Testing and quality assurance is the priority. I expect functional coverage across modern desktop and mobile browsers, with a mix of manual exploration and any automated suites you judge effective. Unit and component tests must guard critical business logic, and every sprint should close with a concise test plan plus a...

...and offers Required Qualifications • Actively enrolled in a U.S. college or university and still pursuing your degree (must not have already graduated) • U.S.-based with no need for visa sponsorship • Currently majoring in Marketing, Communications, or Social Media Management • Strong written communication skills and genuine interest in direct-response copywriting • Comfortable with data, testing, and performance metrics • Self-directed, organized, and able to own projects end-to-end with minimal supervision • Reliable access to a computer and stable internet for remote work Ideal Candidate Traits Curious about what makes people reply. Obsessed with improving numbers week over week. Comfortable sending volume while protecting quality. Eag...

...integrations and CSV/Admin bulk import for rapid listing setup. * Referral System: Multi-tier referral tracking engine. Technical Scope & Requirements: * Architecture: API-First (Node.js, React/, Supabase/PostgreSQL or equivalent scalable stack). * Design: We will provide the front-end UI/UX layout templates; your team will focus on front-end integration, backend logic, API connections, testing, and final deployment. * Future Ecosystem Pipeline: Successful and timely delivery of this first module opens immediate priority access to our broader platform ecosystem (TOGETHER Master, SMART!, NOTARY), structured with upfront base fees and guaranteed 1% annual revenue shares. Please submit your bid with examples of relevant full-stack applications (wallets, real-time chats, or cla...

...detail. My preferred stack is React Native for the shared frontend layer; if you are comfortable weaving native modules or platform-specific tweaks into that workflow, even better. The scope covers everything from setting up the project repository through to releasing a production-ready build on Google Play and the App Store. Along the way I’ll need clean, well-commented code, component-level testing, and logical Git commits so future iterations remain straightforward. Deliverables • React Native codebase configured for Android and iOS • Integration of any native modules we identify as necessary • Debug-ready and release builds submitted to both stores • Brief hand-off notes and setup instructions To help kick things off, share examples of pas...

I need an experienced NeoLoad engineer to own the entire performance-testing lifecycle for our upcoming release. Our top priority is rigorous load testing: you will design, build, and execute tests that accurately simulate real-world user volumes, then translate the results into clear, actionable insights for my development team. You will: • Design detailed performance test plans, workload models, and realistic test scenarios • Create reusable NeoLoad scripts that cover our Web, API, and enterprise modules • Run load, stress, endurance, and scalability suites as needed, monitoring application, database, and server metrics in real time (Dynatrace, AppDynamics, or similar tools are already in place) • Pinpoint bottlenecks, quantify their impact, and r...

I need a single, cohesive we...CRM later. A responsive interface (React, Vue, or similar) backed by a solid RESTful or GraphQL service (Node, Laravel, Django, etc.) is ideal, but I’m open to your proven stack as long as it is well-documented and easy for another developer to maintain. Deliverables 1. Source code in a private repo with clear setup instructions 2. SQL or NoSQL schema scripts 3. Admin credentials for testing plus one demo user for each role 4. Short video or live demo walk-through 5. Deployment guide so I can move the app to my own server or a cloud instance I will review against the feature list above, clean UI/UX, bug-free operation, and code readability. If something here is unclear, ask before you build—I’ll respond quickly so we h...

I need an attractive, mobile-friendly informational website that clearly presents my gym, our philosophy, and the service...implemented so search engines can find us locally, and I’m open to your recommendations on the CMS or framework you feel is best (WordPress, Webflow, custom HTML/CSS—whatever lets me update text and photos quickly). Please include in your proposal: • A brief outline of the tech stack you recommend • Any similar gym / fitness sites you’ve built • Estimated timeline for design, development, testing, and launch Once the site is live and working flawlessly, I’ll take care of hosting and routine updates, but if you offer ongoing support packages feel free to mention them. Looking forward to collaborating on a polished web...

I need a native Android application whose sole purpose is to help users work smarter and stay organised. The app will be positioned squarely as a ...Clean Material-design styling, smooth performance on recent Android versions and sensible local data storage are non-negotiable. If you can architect the project so that future integrations—such as Google Workspace or Microsoft Office—can be added without rewriting major sections, that would be ideal. Deliverables • Full Android Studio project (Kotlin or Java) • Signed release-ready APK for testing • Read-me or short screencast showing build/run steps Once the first milestone build is approved I will iterate with you on refinements and UI polish, so the codebase must be well-structured and documented e...

I need a custom mixed-signal circuit engineered from the ground up to drive an optical wireless communication link. The design must cleanly blend an accurate analog front-end—handling photodiode ...typical office lighting. Deliverables • Complete schematic in Altium, KiCad, or equivalent • PCB layout files and Gerbers ready for manufacturing • Annotated BOM with supplier links • Hardware circuit designs (Not Simulation) with validation • Brief design report explaining key decisions and expected performance metrics Acceptance criteria 1. Reliable Trans receiver design 2. Hardware Testing 3. PCB stack-up and differential pair impedances documented. I am ready to answer detailed technical questions quickly so we can iterate efficiently and r...

...Apple. Build 18 must replace build 17 on the App Store submission before resubmitting. Do not resubmit the app until the recording and complete written response are ready. ANDROID • App version: 1.0.5 • Package: • Current Google Play version code: 7 • A corrected future Android build is configured to use version code 8. • The current AAB is available through Internal Testing. • RevenueCat can read the Google Play subscription and base plan, but purchase validation has experienced a Google permissions or propagation problem. • Confirm that product pro_monthly_599 is active and priced at A$5.99 per month. • Confirm a real internal-test purchase, Restore Purchases and cancellation flow. RELEASE-CRITICAL WORK 1. FIX AND VERIFY MOBILE STA...

...Solar ITI Field Technicians / Installers (On-Site / Project-Based) . Site Survey: Rooftop measurement, shadow assessment, structural stability check, and optimal inverter/cable routing. . Installation: Module mounting structure (MMS) assembly, PV module fixing, DC/AC cabling, conduit laying, earthing pit setup, and lightning arrestor (LA) connection. . Testing & Commissioning: String voltage/current: testing, insulation resistance testing, inverter setup, grid synchronization, and final load trials. . Requirements: . Minimum 2 years of verified hands-on experience in solar PV system design or rooftop execution. . Technicians: ITI Electrical / Wireman certificate or certified Solar PV Installer credential (e.g., Suryamitra); own standard electrical and i...

...NAT/firewall/security configuration Retell AI, Vapi or another AI voice/SIP platform preferred Please mention in your proposal: 1. Your experience with Dinstar/GSM-LTE gateways 2. Your experience with FreePBX/Asterisk 3. Whether you have previously integrated Retell AI, Vapi or another AI voice agent with Asterisk/SIP 4. Your recommended softphone 5. Your fixed price for the complete setup and testing 6. Estimated completion time...

I want a clean, responsive website that lets guests reserve rooms at Hotel NoVo Agra without ever feeling they have left our site. The core of the job is to embed a third-party booking engine such as and keep its full payment workflow active, so when a guest completes a reservation t...mobile-friendly and easy for my staff to update copy and images later. Deliverables: • Fully designed and developed website, ready for launch • Seamless (or similar) widget integration with on-site payment processing • Basic SEO setup, speed optimisation and mobile responsiveness checks • Short hand-off guide showing how to edit content and track bookings Please factor in testing across modern browsers and provide clear timelines for design, integration, QA and go-live.

I’m looking for an experienced cold email deliverability expert to troubleshoot an issue with my email campaigns. I’m currently sending cold emails using n8n automation, but my emails are consistently landing in Spam/Junk, even after adding a 5-minute delay between emails. I’ve already done some testing: Sending a simple text email manually → lands in Inbox Sending the email through my n8n automation → lands in Spam Creating/drafting the email through n8n and then sending it manually → still lands in Spam So I need someone who can determine why the email/content is being classified as spam and identify the actual root cause. I’m specifically looking for expertise in: Cold email deliverability Gmail/Google Workspace spam filtering Sender/d...

Test the app for 15 minutes on two devices and provide honest feedback based on the actual user experience.