Data & Analytics/Intermediate/4 days ago
Since iOS privacy changes, our blended CAC numbers stopped matching what Meta and Google report, and we are making six-figure budget decisions on gut feel. Glowary is a DTC skincare brand doing about $6M/year across paid social, search, influencer codes, and a growing email list. We have 18 months of order data, ad platform exports, and discount code usage ready to hand over.
We want a rigorous independent analysis: reconcile platform-reported conversions against actual orders, build a defensible attribution view (last-touch versus a simple data-driven weighting - explain the tradeoffs to us), and quantify how much each channel actually contributes. The deliverable is a written report with channel-level CAC and a recommendation on where the next $50k/month should go, plus the Python notebooks so our team can rerun the numbers.
One kickoff call, one midpoint check-in, one final walkthrough with our founders. Everything else async.
Data AnalysisPython
$1,000.00 - $1,800.00 fixed price0 bids
Web Development/Expert/4 days ago
Northwind Labs is building inventory software for small warehouses. We need an experienced backend engineer to design and implement the core REST API: items, locations, stock movements, low-stock alerts and an audit trail.
Stack is Node.js with TypeScript and PostgreSQL. You will own the schema design, migrations and API implementation; our team handles the frontend. Expect roughly 25 endpoints, role-based access and webhook notifications for stock events.
This is an hourly engagement with weekly demos. Long-term follow-up work is likely for the right person.
Node.jsPostgreSQLGraphQLTypeScript
Writing & Translation/Intermediate/5 days ago
Comfort Air serves about 12,000 households across Arizona and our website gets almost no organic traffic - basically everything comes from paid ads, which is getting expensive. We hired an agency last year and got back generic articles that could have been about any HVAC company anywhere. Not doing that again.
We want 12 articles over six weeks targeting keywords we have already researched (list provided): things like AC maintenance schedules for desert climates, heat pump versus conventional AC for Phoenix homeowners, and monsoon-season humidity questions our techs actually get asked. Each piece 1,200-1,600 words, optimized but readable, with title tags and meta descriptions included. Our service manager will do a technical accuracy pass on each draft.
You do not need HVAC experience, but you need to be able to interview our techs (two 30-minute calls) and turn what they say into content that sounds like a knowledgeable neighbor, not a brochure.
Content WritingSEO
$1,000.00 - $1,800.00 fixed price0 bids
Web Development/Expert/5 days ago
Our logistics tracking product has grown a REST API of about 60 endpoints over four years, and our mobile team now spends more time stitching responses together than building features. We want a GraphQL layer introduced incrementally - schema-first, resolvers backed by the existing PostgreSQL database, with the old REST routes kept alive until every client has moved over.
Deliverables: an agreed schema design document, the GraphQL server itself (Node.js, TypeScript, Apollo or Yoga - your call, argued for in writing), dataloader-based batching to kill the N+1 queries we know are coming, and a deprecation plan for the REST endpoints. Test coverage on resolvers is non-negotiable; we run CI on every PR and nothing merges red.
You would work directly with our two backend engineers in a shared repo. We are in Central European time and prefer contractors who overlap at least three hours with Berlin business hours.
Node.jsGraphQLTypeScriptPostgreSQL
$2,800.00 - $4,200.00 fixed price0 bids
AI & Machine Learning/Expert/6 days ago
Sightline Robotics does automated defect detection for packaging lines. Our two vision models currently run on a single beefy EC2 box that an intern set up, and it falls over whenever a second factory comes online. We need a proper serving setup: containerized inference with Docker, autoscaling on EKS, GPU node groups, blue-green model rollouts, and latency monitoring with alerts.
You would own the infrastructure end to end - Terraform or CDK (your call, argue for it), CI that builds and pushes model images, a canary process for new model versions, and runbooks our two ML engineers can actually follow at 2am. Target: p95 inference under 200ms at 40 requests/second per site, and a new model version deployable in under 15 minutes without dropping requests.
We estimate 15-20 hours a week alongside our team. Timezone overlap with US Central for at least 3 hours daily is required because rollouts happen during factory maintenance windows.
AWSKubernetesDockerMachine Learning
$75.00 - $115.00/hr0 bids
DevOps & Cloud/Intermediate/6 days ago
January's AWS bill was $4,100; July's was $8,700, and our traffic grew maybe 30% in that window. Something is off and nobody internally has had time to dig. We run a fairly standard stack: ECS services, RDS, S3, CloudFront, a handful of Lambda functions and an OpenSearch cluster someone set up for a feature we later cancelled.
We want a one-week focused audit: go through Cost Explorer and CUR data, identify what is actually driving the growth, flag orphaned resources, and deliver a prioritized savings report - each item with estimated monthly saving, implementation effort, and risk. Where the fix is trivial (unattached volumes, oversized dev instances) and we approve it in writing, apply it during the engagement.
Read-only billing and infrastructure access from day one, a 30-minute kickoff, then a findings walkthrough at the end. If the report is good, there is follow-up implementation work in September.
AWSData Analysis
$700.00 - $1,300.00 fixed price0 bids
Marketing & SEO/Expert/6 days ago
Organic traffic to payloop.com has been flat at roughly 18k sessions a month for a year while two direct competitors doubled theirs. We sell payroll software to restaurant groups in the US and UK, and we suspect a mix of crawl issues left over from a Webflow-to-Next.js migration and a blog that targets the wrong keywords entirely.
Three deliverables: a technical audit with prioritized fixes (we have engineers to implement them), a keyword and topic map for the restaurant-payroll niche, and a six-month content roadmap with briefs for the first eight articles. You get GA4, Search Console, and Ahrefs access on day one.
Show us one audit you've done for a B2B SaaS and what happened in the six months after. Results matter more to us than the page count of the PDF.
SEOContent WritingData Analysis
$1,800.00 - $3,000.00 fixed price0 bids
Design & Creative/Intermediate/6 days ago
Our current marketing site was designed in a weekend two years ago and it shows. We need a redesign concept in Figma for 6 pages: home, product, pricing, about, blog index and a blog article template.
We have a rough brand direction (colors, logo) but are open to evolution. Deliverables are polished Figma frames for desktop and mobile plus a small style guide so our in-house developer can implement without guessing.
Please include one or two relevant portfolio pieces in your proposal. We value clear typography and restraint over flashy effects.
FigmaUI DesignUX Research
$800.00 - $1,500.00 fixed price2 bids
Design & Creative/Intermediate/7 days ago
We are three roasters in Portland launching a single-origin subscription service in October, and we need a landing page that does not look like every other Shopify coffee brand. Think editorial, photography-forward, with real personality - we have a great product story (direct relationships with two farms in Huila, Colombia) and gorgeous photos already shot.
Deliverable is one long-form landing page designed in Figma: hero, story section, how-the-subscription-works, pricing tiers, FAQ, and footer. Desktop and mobile layouts. A developer friend is handling the build, so we need clean, well-organized files with notes on interactions and hover states.
This is a small, focused project with a hard deadline three weeks out. We will give fast feedback - usually same day - and we already know what we like, so bring opinions but expect us to have them too.
FigmaUI Design
$800.00 - $1,500.00 fixed price0 bids
Web Development/Expert/8 days ago
Flat-rate pricing is capping our revenue. Our API monitoring product charges $49/99/249 a month regardless of volume, and our biggest customers send 50x the traffic of our smallest. We are moving to a base-plus-usage model: a platform fee plus metered billing on API checks, with volume tiers.
Concretely: model the new pricing in Stripe (Products, Prices, metered usage records), build the migration path for ~800 existing subscriptions including grandfathering rules we will define together, handle proration edge cases, and rebuild our in-app billing page so customers can see usage against their tier in near real time. Backend is Node.js with TypeScript; the usage events already flow through our queue, so metering data is available.
You should have shipped metered billing on Stripe before and have scars from it. We want to hear what went wrong last time and how you would avoid it here. Weekly milestone check-ins, code review by our CTO.
Stripe IntegrationNode.jsTypeScript
$2,400.00 - $3,800.00 fixed price0 bids