Andrii

Andrii Havrylov
Country: Ukraine

[open contact info](look above in the "contact info" section)
[open contact info](look above in the "contact info" section)
➤ Telegram: @aijeygg
https://github.com/aijeykob
[open contact info](look above in the "contact info" section)
havrilov-406050191

Summary
Profile
Backend-focused Full-Stack Web Developer
BACKEND-FOCUSED FULL-
STACK WEB DEVELOPER 5+ with 5+ years of experience in building
YEARS scalable web applications. I value
continuous growth and enjoy improving
systems, solving complex problems, and
Technologies: delivering reliable production-ready
solutions.
JavaScript
TypeScript PROFESSIONAL EXPERIENCE as
Node.js a Developer
NestJS
React
Nitra
Vue 3
Full-Stack Developer
RxDB
Jan 2025 – Apr 2026
Hasura (GraphQL)
PostgreSQL Technologies: Vue 3,Quasar, RxDB,
MySQL Hasura, GraphQL
Docker
Kafka Developed and maintained a B2B platform
gRPC with role-based access and admin panel
NestJs Implemented features for order
NextJs management, store visits, and sales
representatives’ daily workflows
Worked with offline-first architecture
using RxDB, enabling data persistence and
synchronization
 Worked with GPS tracking and map-based
Languages: features within field workflows
Developed dynamic forms and survey
English (B1) functionality
Ukrainian (Native) Implemented file upload and data
processing features
Contributed to a system developed for AB
InBev distribution workflows
Contributed to data synchronization logic
between client and server (Hasura,
GraphQL)

Dzencode
Backend Developer
May 2023 – Dec 2024

Technologies: NestJS, TypeScript, Docker,
Kafka, gRPC, PostgreSQL

Worked on two parallel projects: internal
system and commercial platform
Developed backend features using
NestJS in a microservices architecture
Optimized SQL queries and improved
application performance
Identified and resolved memory leaks
Implemented internal chat system and
real estate synchronization features
Used Kafka as the backbone for event-
driven communication between
microservices (notifications, async
processing of domain events)
Monitored systems using Grafana,
Portainer, and TeamCity
Kozak Group
Full-Stack Developer
Jan 2019 – Feb 2023

Technologies: React, Node.js, Express,
MySQL, Redux, NestJs, NextJs

Worked on multiple commercial projects
as frontend and backend developer
Developed UI features using React and
Next.js
Implemented backend APIs and
integrated third-party services
Maintained and improved legacy systems
Performed bug fixing, code reviews, and
testing