Nikita

Nikita Khodakovsky About Back-end developer with 3 years of commercial experience in payment
orchestration and customer support automation within a white-label iGaming

Back-End Developer platform.

Throughout my career, I've integrated numerous third-party systems and built
several AI-powered automation solutions that significantly improved
operational efficiency and reduced costs. My expertise in Node.js architecture,
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PostgreSQL concurrency and optimization, SOLID principles, design patterns,
data structures, networking, cryptography, and web security enables me to
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deliver robust, production-ready solutions that balance technical excellence
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Location Experience 1WIN
Feb 2023 - Present
Odessa, Ukraine Back-End Developer

Implemented AI-powered ticket auto-tagging and prioritization, eliminating
manual categorization overhead for customer support teams and improving
Links response time to high-priority tickets.

Implemented PSP rotation mechanism with success-based sticky routing to
Website
prevent repeated payment failures, improving deposit success rate and
khodakovsky.com user experience.

Implemented PostgreSQL row-level security for a multi-tenant platform,
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enforcing database-level tenant isolation to prevent cross-tenant data
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exposure in case of application-layer bugs.

GitHub Built an AI Actions system enabling customer support operators to generate

github.com/NikitaKhodakovsky context-aware responses using multiple AI providers (ChatGPT, Claude,
Gemini and Grok).

Telegram Implemented dynamic currency conversion allowing customers to pay in
t.me/nikitakhodakovsky their local currency.

Optimized Docker images for Node.js microservices, reducing build time and
image size, consolidating 7 images into a single parameterized image.

Replaced DeepL with AI translation, reducing costs up to 200x.
Languages

English
Intermediate
Skills & Tools Front End
Russian
React HTML CSS SASS React Query React Router Formik
Native
ChartJS Vite Figma
Ukrainian
Native
Back End

NodeJS PostgreSQL NestJS RabbitMQ BullMQ Redis

NGINX TypeORM Express Vercel AI SDK

DevOps
Docker Kubernetes AWS Terraform Grafana Git Scrum

Jest Turborepo

OOP
SOLID Design Patterns Clean Architecture Hexagonal Architecture

Common
TypeScript JavaScript REST GraphQL w
S agger Linux

RegExp