Vadim Volovenko
Vadim Volovenko

Vadim Volovenko

AI/ML • Minsk, Belarus • UTC+03:00 • In office, Partially remote, Fully remote • Relocation • Work permits: Belarus, Russia • Available in 2 weeks
Full Stack Developer
13+ years exp
Ruby
Elixir
SQL
Python
Go
PHP
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Overview
Technical skills
Timeline
Roles

Overview

Ruby on Rails developer with experience in building and maintaining web applications, backend services, and API endpoints. Worked on integrating external systems and payment/delivery services, implemented AI-related integrations, and optimized database queries for performance. Uses testing practices with RSpec and contributes to CI/CD and code reviews, including containerized deployments.
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Technical skills

Languages
6
Ruby
Elixir
SQL
Python
Go
PHP
Python
3
FastAPI
Pydantic
SQLAlchemy
Ruby
7
Ruby on Rails
RSpec
Sidekiq
Devise
Dry-rb
Pundit
ActiveAdmin
Databases
8
PostgreSQL
Redis
ElasticSearch
Google BigQuery
PostGIS
MySQL
pgvector
Qdrant
DevOps
9
Kubernetes
Docker
GitHub Actions
Git
AWS
GitLab CI
CI/CD
Rest API
Cloudflare
AI/ML
5
LLM
LangChain
LangGraph
Claude
Whisper
Other
10
Bitrix
GraphQL
WordPress
GigaChat
Langfuse
Perplexity
Model Context Protocol
RAG
Hybrid Search
Reranking

Timeline

Fullstack Developer • Middle
Yunichek • Full-Time
Dec 2025 to Present 10 Months Moscow In office
Developed B2B SaaS features for automating customs compliance for imports into Russia and EAEU. Implemented a two-step LLM workflow to classify HS codes and search over a large reference dataset. Built document-analysis logic for certification, labeling, duties/VAT and counterpart risk assessment, and integrated multiple external APIs. Delivered REST APIs for client ERP/TMS integration and set up payment webhooks and CI/CD with Docker builds.
Ruby on Rails
PostgreSQL
Redis
Sidekiq
Claude
LLM
Docker
GitHub Actions
Fullstack Developer • Middle
INMYROOM • Full-Time
Aug 2024 to Jul 2026 1 Year 11 Months Moscow In office

Developed and maintained core website functionality and built an internal CRM. Implemented integrations with payment and delivery services and added AI integrations with OpenAI, Anthropic, Yandex AI, and GigaChat. Worked with Ruby on Rails APIs, PostgreSQL/PostGIS and Elasticsearch, and supported async/background processing and containerized deployments with Docker and Kubernetes.

Ruby on Rails
GraphQL
Rest API
PostgreSQL
PostGIS
ElasticSearch
Sidekiq
Dry-rb
Pundit
AWS
Google BigQuery
Mindbox
Docker
Kubernetes
GitLab CI
Ruby on Rails Backend Developer • Middle
Qolio • Full-Time
Feb 2021 to Jul 2024 3 Years 5 Months In office
Designed application interactions and implemented integration logic with external systems such as VoIP and CRM. Applied CQRS and DDD approaches, developed API endpoints, and optimized critical database queries for better performance. Wrote unit and integration tests with RSpec using TDD practices, used CI/CD via GitHub Actions, and performed code reviews.
Ruby on Rails
PostgreSQL
Redis
Docker
Kubernetes
Sidekiq
Devise
RSpec
Ruby on Rails and Elixir Developer • Middle
Wellnuts • Full-Time
Mar 2020 to Nov 2020 8 Months In office
Worked on software development using Ruby on Rails and Elixir. Contributed to building and maintaining application functionality for internal and/or customer needs. Focused on delivering working features in a Ruby/Elixir codebase during the employment period.
Ruby on Rails
Elixir
Fullstack Developer • Middle
Femistyle • Full-Time
May 2017 to Feb 2020 2 Years 9 Months Minsk In office
Developed and maintained the company websites and worked on client websites. Supported delivery of web features across the front-end and back-end side of the projects. Ensured ongoing maintenance and updates for the released web resources during the employment period.