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Vitaly – Golang, Python, Clojure, experts in Lemon.io

Vitaly

From Ukraine (UTC+3)flag

Back-end Web Developer|Senior

Vitaly – Golang, Python, Clojure

Vitaly is a senior back-end engineer with over 20 years of experience, specializing in Golang, distributed systems, and database design. He has led and delivered projects involving Go, Python, Clojure, PostgreSQL, and gRPC, with notable strengths in protocol design and decentralized architectures. He demonstrates strong conceptual understanding and adaptability, with practical exposure to AI concepts and teaching.

21 years of commercial experience in
Blockchain
Data analytics
Edtech
Fintech
Healthcare
Healthtech
Networking
Supply chain
Transportation
Marketplace
Messaging software
Main technologies
Golang
7 years
Additional skills
Python
Clojure
Node.js
NumPy
LangChain
NLTK
Pandas
Pydantic
Kubernetes
Docker
Rust
PyTorch
LangGraph
Dask
Typescript
Vue.js
React Native
Qt
Ethereum
Java
AWS
Redis
lua
MongoDB
Django
Neo4j
Jenkins
Apache Tomcat
C++
PostgreSQL
MySQL
Blockchain
Networking
Distributed Systems
Smart contracts
gRPC
Protobuf
JavaScript
WebRTC
Direct hire
Possible
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Experience Highlights

Assistant Professor
Dec 2022 - Ongoing3 years 3 months
Project Overview

It's a university in Ukraine.

Responsibilities:
  • Taught courses in deep learning, natural language processing, and computer vision.
  • Delivered lectures and labs on big data analytics, including distributed computing, efficient storage algorithms, containerization, and AWS.
  • Conducted cryptography research and implemented algorithms in Rust and Python.
  • Conducted reinforcement learning and neurosymbolic AI research.
Project Tech stack:
PyTorch
NLTK
Pandas
NumPy
PostgreSQL
Dask
Docker
Kubernetes
Apache Iceberg
Rust
LangChain
LangGraph
Pydantic
Staff Software Engineer
Jun 2025 - Dec 20256 months
Project Overview

It's a supply chain management solution in the maritime shipping space. Includes features such as voyage management, demurrage calculation, and versatile reporting and analytics.

Responsibilities:
  • Developed features using Typescript and Vue.js.
  • Designed an analytical database and ETL process for third-party BI tool integration.
Project Tech stack:
Typescript
Vue.js
MySQL
Python
Senior Engineer & Tech Lead
Nov 2024 - Jan 20252 months
Project Overview

It's a decentralized fintech platform that enables scalable, load-balanced execution of client requests across registered nodes.

Responsibilities:
  • Designed and implemented server-side logic for a multi-role decentralized architecture.
  • Wrote internal protocol implementation using Protobuf.
  • Built front-end API handler and load balancer in TypeScript.
Project Tech stack:
Golang
Ethereum
gRPC
Smart contracts
Protobuf
Typescript
Software Enginer
Dec 2017 - Jul 20246 years 6 months
Project Overview

It's an extension of Ethereum’s Geth for Status that includes features such as account management, wallet, 1-on-1 chats, and more.

Responsibilities:
  • Worked on status-go, an Ethereum Geth extension for Status.
  • Implemented hash ratchet, a Signal double ratchet variant for group chats.
  • Built wallet and account management features.
Project Tech stack:
Golang
Ethereum
Networking
Blockchain
Software Engineer
May 2021 - Jul 20243 years 2 months
Project Overview

It's a distributed messaging protocol built on top of libp2p. Includes support for filtering, topic subscriptions, NAT traversal, and peer discovery.

Responsibilities:
  • Implemented Waku RFCs in Go.
  • Improved message deliverability and protocol stability.
  • Designed and built a test framework for multiple nodes.
Project Tech stack:
Golang
Ethereum
Distributed Systems
Chief Technology Officer
May 2016 - Dec 20171 year 7 months
Project Overview

It's a software development company specializing in finance, healthcare, and education sectors.

Responsibilities:
  • Managed projects across healthcare, education, and finance domains.
  • Tech-led design of a language learning app with real-time video support.
  • Implemented data analytics for named entity recognition and KOL identification in healthcare.
Project Tech stack:
Java
Clojure
PostgreSQL
React Native
AWS
Redis
WebRTC
Node.js
JavaScript

Education

2020
Mathematics
Doctor of Philosophy
2005
Mathematics
Master of Science

Languages

English
Advanced

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