Ar 2r
@ar2r
I build Go distributed systems, from marketplace search and fintech integrations to SaaS platforms.
What I'm looking for
I've built production backend systems across SaaS, e-commerce, fintech, and healthtech for products including Magnit Tech's marketplace billing platform, Uzum's marketplace search, Mercuryo's crypto-processing wallet, and DOC+ telemedicine.
Most recently, I led a three-person backend team building a SaaS workspace from day one. I designed seven Go microservices with gRPC and Protobuf, delivered tasks, chat, files, RBAC, and notifications, and established Docker, GitHub Actions, Kubernetes/k3s, and an OpenTelemetry-based observability stack.
At Uzum, I developed marketplace search infrastructure around GraphQL, Elasticsearch, Kafka, and Redis, launched ranking experiments, improved typo correction, and supported a new locale on a multi-tenant architecture. At Magnit Tech, I led major partner-billing initiatives, built configurable onboarding flows, and delivered bidirectional Kafka integrations.
I take ownership from requirements and architecture through production delivery, observability, and support. I've also mentored developers moving from PHP to Go and helped replace legacy PHP platforms with Go services.
Experience
Work history, roles, and key accomplishments
Backend Team Lead / Senior Go Engineer
Feb 2025 - May 2026 (1 year 3 months)
SaaS workspace combining task and project management, a realtime messenger, file storage, notifications, invite links, and a role-based access model in a single product. Stage: MVP / closed beta.
Led a 3-person backend team and owned the entire backend from day one: requirements gathering, architecture, decomposition, code review, CI/CD, infrastructure, and implementation of key modules.
Designe
Tech arm of Magnit - one of Russia's two largest food retailers, operating ~31,500 stores nationwide with $34.8B in 2024 revenue
Partner billing platform within a large e-commerce marketplace: partner onboarding, registration data, pricing plans, and integrations with internal marketplace systems.
Acted as feature lead on major initiatives: analyzed requirements, designed technical solutions, ch
Uzbekistan's first tech unicorn ($1.5B valuation), the country's largest digital ecosystem e-commerce marketplace, fintech, and delivery with 17M+ monthly active users.
Marketplace search team responsible for product search, Elasticsearch index freshness, ranking, and the technical foundation for A/B testing.
Developed the core search service: GraphQL search gateway, search engine on top of Elas
Crypto processing platform for fiat-to-crypto and crypto-to-fiat operations. Worked in the wallet product on IBAN functionality: account opening, fiat deposits, withdrawals, and fiat/crypto exchange.
In the first month, independently implemented KYC provider integrations and the notification system in the wallet product.
Then joined a team assembled from scratch for the IBAN functionality (severa
Online service for searching, comparing, and ordering medications at pharmacies: catalog, real-time stock availability, search, order placement, and integrations with pharmacy chains.
As part of a two-developer team, built a Go replacement for the PHP backend from scratch - a full replacement of the legacy platform; authored and contributed to ~5-7 Go services, migrated business logic, and develo
Leading Russian telemedicine platform (300+ employees), backed by Yandex and Baring Vostok.
Telemedicine platform: video, audio, and text consultations with doctors, home doctor visits, appointment booking at partner clinics, and electronic medical records; microservice backend with a team of 8.
Primarily owned the appointment booking domain: doctor calendars, partner slots, schedule availabilit
Backend for a no-code chatbot builder (Telegram, Viber, Facebook Messenger) and a marketplace for paid online consultations with experts. Built REST APIs for web and mobile clients, OAuth2 authorization, user accounts, subscription plans and RBAC, payment integrations, end-to-end modules for creating and managing Viber and Facebook Messenger bots, catalog imports from XLS/URL, background processin
Education
Degrees, certifications, and relevant coursework
Bashkir State University
Master's degree, Mathematics and Computer Science
2010 - 2015
Availability
Location
Authorized to work in
Job categories
Skills
Interested in hiring Ar?
You can contact Ar and 90k+ other talented remote workers on Himalayas.
Message ArGet matched with your dream remote job
Sign up now and join over 250,000+ remote workers who receive personalized job alerts, curated job matches, and more for free!
