Task, solution, architecture and a result with a number, for every project.
No product name and no site address appears in any of these case studies. Some of the work was commissioned and we do not publish client names. Some of it belongs to payment projects that prefer quiet. The task, the architecture, the stack and the result stay where they are, and that is the part a technical buyer reads.
More than half of these projects are no longer running, and the reason is not technical. They were our own products, and they ran out of money for promotion rather than out of engineering. A client buys the ability to build a system, not somebody else's marketing, which is why closed projects sit here alongside live ones.
Range
What appeared in the work, period by period
The run does not break for a single year from 2014 onwards. Each period below is named after what showed up in it for the first time.
2014–2016
Retail and the first services
A handicraft store taking international cards and shipping abroad, a store for digital goods, corporate sites for a training centre and an investment firm, and the first messenger bots.
2017–2018
Money and data
Billing for an e-wallet, an online identity verification service, foreign services paid with local cards, an aggregator pulling data from many independent sources, and a delivery map for a manufacturer.
2019–2020
Load, cash and warehouses
Flight tickets paid with local cards, a network of self-service terminals accepting banknotes, delivery and taxi bots, online stores with stock control, and a prototype for ordering bank cards online.
2021–2022
Payment infrastructure
A payment institution licensed by the central bank, a merchant platform with dozens of systems connected, a subscription platform for an expert, and corporate sites for manufacturers.
2023–2024
Communities and embedded software
A student forum split by region, university and faculty. A program for the chip inside a wastewater sensor, which is not web work at all but hardware. A store for an occupational safety company.
2025–2026
AI, search and SaaS
A classified ads aggregator with a language model in the processing pipeline, an adaptive testing SaaS, a five-language content platform, a CRM for online sales, and our own knowledge base with a team of AI specialists in it.
Listings from outside marketplaces and messenger channels are pulled into one search: deduplication on three signals, normalisation, and a model that extracts attributes from free text.
PythonCeleryPostgreSQLMeilisearch
IT for FinTech and Payment Companies
almost 10 yearsthe product has been live and handling payments
A wallet people abroad use to pay for services back home: top-ups and withdrawals, payments through aggregators, identity checks, limits and referrals.
NestJSTypeScriptNext.jsPostgreSQL
IT for FinTech and Payment Companies
4subsystems: private API, public JSON-RPC, agent office, documentation
Dealers take payments for services through providers, earn commission or rewards, and work in strictly isolated tenants. Integrators get a public JSON-RPC interface.
NestJSPostgreSQLRedisReact
IT for FinTech and Payment Companies
113database tables in the legacy platform we maintain
Training centres build tests, applicants take them from a link and receive a verified level. Questions get harder as the test goes, so the level emerges from fewer of them.
An employment agency replaced a static landing page with a managed platform: admin panel, blog and an SEO structure in five languages. The look of the site was kept.
LaravelFilamentPostgreSQLBlade
Other work
The twenty case studies above are the projects with a technical story behind them. Here is the rest of what we can still name, one line each, newest first. Client names and site addresses are left out for the same reason as in the case studies.
CRM for sales coming out of paid social advertising, 2025
Online store for workplace safety services, 2024
Corporate site for a commercial vehicle dealer, 2022
Redesign for a car seat manufacturer, 2021
Site for a web and design studio taking orders online, 2020
Site for an offline shop with a product catalogue, 2020
Home appliance store with stock control, 2020
Grocery store with delivery, 2020
Telegram bot for food delivery in one district, 2020
Telegram bot for taxi orders and parcel sending, 2020
Corporate site for outsourced accountants and auditors, 2019
Telegram bot for mass surveys paying respondents, 2019
Prototype for ordering and delivering bank cards online, 2019
Interactive delivery map by district, 2018
Corporate site for a manufacturer with an online store, 2017
Billing system for an electronic wallet, 2017
Corporate site for an investment company, 2016
Telegram bot for growing subscribers with prize draws, 2016
Online store for scripts and digital goods, 2015
Site for a training centre with several branches, 2015
Classified ads board for car sales
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