Develop an A/B Testing and Experimentation Platform
Need a developer for an A/B testing platform: variant setup, traffic splitting, conversion tracking and statistical significance calculation with dashboard and SDK.
Real orders from clients: pick a category, filter by budget and competition, and respond while the project is fresh.
Need a developer for an A/B testing platform: variant setup, traffic splitting, conversion tracking and statistical significance calculation with dashboard and SDK.
Seeking a developer for an email verification service: syntax checking, domain and mailbox validation, filtering disposable and role-based addresses, list cleaning and scoring.
Need a web helpdesk that turns support emails into tickets: shared inbox, assignment, SLA, response templates, tags and reports.
Need a scraper that monitors competitor product prices on store websites on a schedule, builds price history charts and sends alerts when price thresholds are crossed.
Need a self-service scheduling service: a personal booking link so people can choose a free slot themselves, and the meeting automatically goes into my calendar.
Need a threaded comment engine for our media site with auto-filter for spam and toxicity, moderator queue, user reputation and embedded widget.
Need a live chat widget with an operator: pop-up bubble button, agent inbox with routing, canned responses, visitor context and offline message reception.
We need a backend that accepts video uploads, transcodes to multiple resolutions, builds adaptive HLS/DASH, and returns async task status.
Looking for a data engineer who will design and build an ETL pipeline: pull data from multiple sources, clean it, and load it on schedule into our warehouse.
We need a background task queue: worker pools, retries with backoff, deferred jobs, and a live dashboard showing throughput, errors, and queue depths.
We need a self-hosted microservice that converts documents, images, and media between many formats through an API with queue, async tasks, and webhooks.
We need an OCR engine that reads scans of invoices, receipts and IDs, extracts structured fields with confidence scores, and returns them as an API with a verification screen.
We need a web dashboard that receives sensor telemetry over MQTT, stores time series data, and displays live graphs, gauges, threshold alerts, and device control.
We need an embeddable onboarding widget that will guide new users through our web application: step-by-step tours, tips, checklists and analytics of completion.
We need a light embedded widget that shows short NPS and micro-survey polls on events, collects ratings and comments and builds trends on an analytics dashboard.
We need to implement instant full-text search: typo tolerance, faceted filters, autocomplete and an indexer synchronized with the catalog.
Choose a category in the tree, add a search word and open a suitable project. Study the task and send a response with your price and deadline — the client sees every response and chooses the freelancer.
Respond in the first hours after publication and to projects with few responses — the “Fewest responses” sorting shows them first. Show that you understood the task and attach a similar work from your portfolio.
Describe the task specifically, set a budget and a deadline — the project appears in the catalogue and freelancers of the category are notified. Post a project
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