Alexander Chadaev AI, automation and business systems
RU Discuss a project

Project challenges and outcomes

These case studies cover systems I designed or built, as well as projects whose delivery I led. Each explains the client's needs, the technical challenges, my own contribution and the outcome.

Showing 1-⁠6 of 6

Advertising systems and optimization

Projects for a large international advertising agency and other advertising businesses: proprietary advertising products, fraud detection, optimization across hundreds of campaigns and a landing page builder. Attribution is another focus: linking an install or conversion to its advertising source.

A large advertising agency with international operationsIn production

Custom fraud detection cuts problem traffic more than 20-fold

The agency bought traffic from multiple sources but still received advertiser complaints despite an off-the-shelf filter. I analyzed click data and tested hypotheses to find what it was missing, then built a custom click-scoring system.

>20xreduction in problem traffic after launch; major advertisers retained Read case study
Large international advertising agencyIn use, with ongoing development

Automated ROI optimization across hundreds of campaigns and 10 ad networks

Manual checks could not keep up with declining placement quality. I built a system that combines network, tracker and agency analytics data to disable underperforming segments according to media buyers' rules.

Hours saved weeklyby automatically checking hundreds of campaigns and applying media buyers' rules Read case study
A large international advertising agencyIn production

60+ landing pages in one builder, no code edits needed

Off-the-shelf builders could not support the pages' custom logic and analytics scripts. Media buyers had to edit code, spending time and risking costly mistakes. I built an internal tool for creating and configuring pages and migrated all existing live pages.

60+ landing pagesavailable in the builder; media buyers can also create new pages without editing code Read case study
A large international advertising agencyIntegration launched, payment requirement met

Keeping iOS installs payable with SKAdNetwork for web ads

A key partner would pay only for AppsFlyer-confirmed installs. No ready-made SKAdNetwork solution existed for website ads at the time, so I built a custom integration to provide the required confirmation.

Install payments preservedThe agency retained its key partnership and payment for iOS installs under the new terms Read case study
Advertising agencyHanded over to the client's team

Competitor ad monitoring: from launch to paid access

An agency wanted to test demand for its own competitor ad monitoring service. I built web collection, data ingestion and processing, and a web service with pricing plans and payments. Agency staff used it first, followed by external paying customers.

Paying customersexternal customers paid for access after the internal launch Read case study
Advertising agencyBusiness model tested at MVP stage

News app MVP: demand confirmed, ad returns too low

I built the news aggregator backend and initial ad platform. Users showed interest, but the financial analysis did not justify scaling. The client hired me for the next project.

Installs confirmed demandAdvertising returns did not justify scaling. The project stopped; the client relationship continued. Read case study
What I can share about private projects

Many projects are internal, covered by nondisclosure agreements or no longer available. Links, screenshots and exact figures are therefore not always available, and some clients cannot be named. We can discuss technical approaches and a similar solution for your needs in writing in English or on a call in Russian, without disclosing protected interfaces or data.

What would you like to solve?

Share a detailed brief, requirements or any materials you already have. If you have none yet, a few sentences about the current situation and your goal are enough. I review every message myself and respond within one business day.

  • You will work directly with me, not a sales representative.
  • A free initial written discussion will help establish whether I can help and where to start.
  • If the project is outside my expertise, I will tell you directly.
Alexander Chadaev

Alexander Chadaev

Telegram @chadaev_ai hello@chadaev.ai

Additional details

Attach requirements, sample documents, screenshots or other supporting materials. Maximum 10 files, up to 20 MB in total.

Your form details are processed to handle your enquiry as described in the privacy policy.

Let's discuss your project Telegram