Looking for a job

Anton Luboshnikov

@antonl

Message

I build high-load Python backend, payment, and LLM-agent systems from production services to Kubernetes deployment.

Kazakhstan

Message

What I'm looking for

I'm looking for backend, LLM-application, or platform roles where I can build high-load async systems, payment and data pipelines, and production AI products.

I've built backend systems for Lionsoul Global and Aviata.kz/Chocotravel.com, spanning digital-asset investment products, high-volume travel ticketing, payments, and reconciliation.

At Lionsoul Global, I designed a Separately Managed Account staking product with BitGo integration, added NAV-based investment analytics and reconciliation, and strengthened support and authentication through audited admin impersonation and Apple and Google SSO.

At Aviata.kz/Chocotravel.com, I led a seven-person cross-functional team and migrated B2B air and rail ticketing from a PHP monolith to async Sanic microservices with zero downtime. The work reduced payment latency from roughly 1–2 seconds to about 250ms and lowered production incidents from 1–2 per day to around 2 per week.

More recently, I've built and deployed a multi-persona Telegram LLM agent with RAG, structured memory, tool use, evaluations, Docker, Kubernetes, and GitHub Actions. I'm open to backend, LLM-application, and platform work.

Experience

Work history, roles, and key accomplishments

Backend Engineer

Lionsoul Global

Feb 2025 - Apr 2026 (1 year 2 months)

-Built a staking investment product end-to-end - integrated with BitGo. Release pending; further-under NDA
-Extended the user analytics subsystem with NAV support - a third-party audited valuations
-Built admin login-as-user impersonation for support. Designed for full audit and observability
-Integrated Apple/Google SSO; added multi-hop trade to the currency exchange flow

fastAPI PostgreSQL RabbitMQ Redis Python Docker Kubernetes AWS S3 SES

B2B Department-Team Lead&Engineer

Aviata.kz

Oct 2022 - Oct 2024 (2 years)

Led a team of 7 engineers and QAs
- Owned hiring, mentoring, and cross-team coordination
- Migrated air and rail ticketing from a PHP monolith to Sanic microservices with a soft cutover — both systems running side-by-side with zero downtime
- Rewrote the corporate prepayment system from scratch as a standalone Sanic microservice, integrated alongside the legacy payment stack

Sanic fastAPI PostgreSQL RabbitMQ Redis PHP

Backend Engineer, Infrastructure

Aviata.kz

May 2021 - Oct 2022 (1 year 5 months)

-Built the company-wide notification center with pluggable providers, behind ~5-6k daily air ticket sales
-Owned Apple Pay/Google Pay as the primary mobile-checkout rail for 2+ years
-Built and owned the Ioka payment integration as the main rail for ~6 months
-Extended a CH payment analytics system 30k daily events
-Led migration of the internal lib to a multi-lib setup

Sanic PostgreSQL RabbitMQ Redis AWS S3 SES Clickhouse

Backend Engineer, Accounting Team

Aviata.kz

Nov 2020 - May 2021 (6 months)

-Designed and shipped a parallel task-splitting system for ticket-record consolidation, cutting end-to-end reconciliation from ~1 hour to ~20 minutes (3× faster)
-Implemented ticketing-data parsers for 5 GDS systems: Amadeus, HititCS, Nemotravel, SirenaTravel, CityTravel
-Contributed features across the accounting service consolidating internal records against provider reports

PostgreSQL RabbitMQ Redis Django

Backend Engineer, Content Team

Aviata.kz

Dec 2018 - Nov 2020 (1 year 11 months)

-Built a high-load location search service handling 10k+ daily queries — the primary search entry-point for the air ticket sales flow
-Implemented the price-modifier engine for airline ancillaries (seats, baggage, meals) and a dynamic markup/discount system applied at search time
-Maintained the internal admin panel (React + Django) for provider profiles and price rules

PostgreSQL RabbitMQ Redis Django Sanic MongoDB