Артем

Artem Bolshak
[open contact info](look above in the "contact info" section) (telegram, viber)
[open contact info](look above in the "contact info" section)
LinkedIn
Fullstack developer
Dnipro, Ukraine

About

I’m a Full-Stack Developer with 4+ years of commercial experience building web applications and backend
services from concept to production. My primary focus is the Node.js and TypeScript ecosystem, with
hands-on experience in NestJS, Express.js, Fastify.js, Next.js, and Angular. I’ve worked on projects across
agriculture, legal, travel, and logistics, adapting to different business requirements and technical
challenges. I enjoy exploring new technologies, improving existing solutions, and taking on challenging
problems that help me grow as an engineer.

Languages

● English ( Upper-Intermediate )

Skills

● JavaScript, TypeScript;
● Node.js, Nest.js, Express.js, Fastify.js;
● MongoDB, PostgreSQL, Redis;
● TypeORM, PrismaORM, Sequelize;
● Kafka, RabbitMQ;
● GraphQL;
● React, Next.js, Angular, Redux, Material UI;
● Unit testing (Jest, Vitest, Cypress);
● AWS, Google Cloud;
● Docker, Kubernetes;

Experience

FULL-STACK DEVELOPER
EOS DATA ANALYTICS (full-time)
Jan. 2022 - Mar. 2025

Crop Monitoring

An agro tool to manage fields effectively. The tool allows you to manage data and control the work of
the entire team.

Forest Monitoring

A tool to monitor deforestation, thermal anomalies, forest productivity, water stress, and other
parameters of forests.

Responsibilities & Achievements
● Delivered end-to-end features across frontend and backend, from requirements to production.
● Designed and implemented REST APIs, microservices, and PostgreSQL solutions for core business
functionality.
● Developed geospatial features and interactive map-based interfaces for agricultural and
environmental monitoring.
● Optimized backend performance through PostgreSQL query optimization and Redis caching.
● Introduced new technologies and collaborated with internal and external teams to deliver effective
technical solutions.
● Supported developers through troubleshooting and code reviews, while maintaining unit tests to
ensure code quality and reliability.

Environment
● Front-end: Angular, Angular Material, Mapbox.
● Backend: Express.js, Nest.js, PostgreSQL, Redis, Kafka.

FULL-STACK DEVELOPER
DBB Software (full-time)
Jun. 2025 - Feb. 2026

Legalfly

AI-powered legal research platform providing lawyers with access to structured legislation and
AI-assisted legal analysis.

Responsibilities & Achievements
● Built data parsers to collect and process legislation from multiple countries and jurisdictions.
● Standardized and structured legal data for reliable integration with AI models and downstream
services.
● Designed and implemented APIs providing programmatic access to the collected and processed
legal data.
● Architected AWS infrastructure to isolate application components and optimize resource
utilization.
● Developed a Microsoft Word plugin integrating legal research capabilities directly into users'
workflow.

Environment
● Front-end: React, Redux, Material UI, Tailwind.
● Backend: Node.js, Fastify.js, PostgreSQL, AWS CDK, Docker, Kubernetes etc.

Choo Choo

A mobile platform for searching and booking train tickets across European railway networks.

Responsibilities & Achievements
● Developed and maintained backend services and REST APIs for the mobile application.
● Integrated third-party services and external APIs to extend application functionality.
● Designed and optimized database queries and backend processes for improved performance.
● Investigated and resolved technical issues across backend services and integrations.

● Collaborated with frontend developers and other teams to deliver new features and
improvements.

Environment
● Backend: Nest.js, PostgreSQL, Redis, AWS CDK etc.

FULL-STACK DEVELOPER
Freelance (full-time)
Mar. 2026 - Present.

Logistics Platform

A business platform designed to streamline and manage logistics operations, transportation, and
shipment workflows.

Responsibilities & Achievements
● Designed and implemented core business workflows for managing shipments, transportation, and
logistics operations.
● Improved system scalability by introducing modular services and asynchronous processing.
● Automated key logistics workflows, reducing manual operations and improving process efficiency.
● Improved data consistency and reliability across logistics operations by implementing validation
and centralized business rules.
● Optimized database performance and reduced resource consumption by 20% through query and
data access optimization.

Environment
● Front-end: Next.js, Redux, Material UI, Tailwind.
● Backend: Nest.js, PostgreSQL, Redis, GraphQL, Kafka, AWS CDK, Docker, Kubernetes etc.

Education

Ukrainian State University of Science and Technologies
Bachelor’s degree in Electrical Engineering (2017 - 2021)
Master’s degree in Electrical Engineering (2021 - 2022)