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Fullstack-розробник
- Age:
- 24 years
- City of residence:
- Lviv
- Ready to work:
- Lviv, Remote
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Artem Diadiushko, Full Stack Developer - Backend-Focused
Lviv, Ukraine | Remote-first | [open contact info ](look above in the "contact info" section) | [open contact info ](look above in the "contact info" section)
[open contact info ](look above in the "contact info" section) | English C1-C2 | Notice period: 7 days
SUMMARY Full Stack Developer with over six years of commercial experience and a strong backend
focus, working across Node.js/NestJS/Express services, React/Angular frontends, React
Native/Expo mobile apps, cloud infrastructure, microservices, and integration-heavy products.
I usually start by understanding what users and the business actually get from the product before
diving into the codebase or architecture. This helps me join complex existing products quickly,
challenge unclear requirements, and balance engineering effort against real product value.
HIGHLIGHTS - Migrated a serverless JavaScript backend to TypeScript within 3 months with a full code
refactor.
- Migrated a legacy monolithic backend to NestJS microservices using a gradual dual-write
strategy.
- Built ecommerce/adtech integrations for Shopify, Klaviyo, Google, Meta, GTM, and Airbyte
workflows.
- Improved mobile team delivery flow, increasing average 2-week team capacity by 22% over 4
months.
SKILLS Backend JavaScript, TypeScript, Node.js, NestJS, Express, REST APIs,
gRPC, microservices, webhooks, background jobs, validation.
Frontend / Mobile React, Angular, React Native, Expo, frontend performance and
UX improvements.
Cloud / Data GCP, AWS, Firebase, MongoDB, PostgreSQL.
Integrations Shopify, Klaviyo, Google apps, Meta apps, GTM, Airbyte,
OAuth, Sentry, SendGrid.
Tooling Docker, CI/CD, GitHub, GitLab, AI integrations, CodeRabbit.
PROFESSIONAL EXPERIENCE
05/2025 - Present Full Stack Developer - Backend-Focused, Independent B2B / Contract
Projects
Selected long-term B2B projects
Blue Tees Golf - golf-tech mobile/backend platform
- Helped migrate a legacy monolithic backend to NestJS-based microservices using a gradual
dual-write data migration strategy.
- Extracted shared backend logic into internal npm packages to reduce duplication and
improve consistency across services.
- Refactored legacy modules into cleaner service boundaries and added MongoDB
validation/optimization for better data reliability.
- Worked across backend and React Native mobile features in a production golf-tech product.
Tie / Revenue Roll - ecommerce/adtech integration platform
- Built integration apps for Klaviyo, Shopify, Google, and Meta to connect ecommerce,
marketing, and advertising workflows.
- Worked on a Pandium-like integration platform covering OAuth, token management,
connected accounts, and app authorization.
- Automated tracking setup flows, including pixel generation, user-facing delivery, and
GTM/client-side configuration.
- Created custom Airbyte connectors and balanced requested features against feasibility, edge
cases, and engineering effort.
07/2024 - 08/2025 Full Stack Software Engineer, TechMagic / PriceAgent
Full-time employee at TechMagic
- Worked across a serverless backend and two React frontend applications for PriceAgent, a
pricing research / willingness-to-pay SaaS product.
- Gradually migrated a JavaScript serverless codebase to TypeScript while refactoring core
modules to improve maintainability, type safety, and development speed.
- Built backend and frontend features using AWS, Firebase, React, and TypeScript.
- Developed React Native / Expo features for an internal Firebase-based task-tracking mobile
application.
05/2020 - 07/2024 Full Stack Software Engineer, SoftServe
Full-time employee
- Worked as a full stack engineer across multiple client projects, including CRM systems,
trading/market-data interfaces, and real-estate business tools.
- Built and maintained frontend and backend features using React, Angular, Node.js/Express,
MongoDB, PostgreSQL, AWS, and GCP.
- Gained broad commercial experience across backend APIs, frontend interfaces, database
work, cloud services, performance/UX improvements, and microservice-based architectures.
EDUCATION IT Step University - Software Engineering coursework, 2 years completed.
LANGUAGES Ukrainian Native English C1-C2
Russian Native Availability Remote-first, open to
B2B / Contract /
Full-time
Lviv, Ukraine | Remote-first | [
[
SUMMARY Full Stack Developer with over six years of commercial experience and a strong backend
focus, working across Node.js/NestJS/Express services, React/Angular frontends, React
Native/Expo mobile apps, cloud infrastructure, microservices, and integration-heavy products.
I usually start by understanding what users and the business actually get from the product before
diving into the codebase or architecture. This helps me join complex existing products quickly,
challenge unclear requirements, and balance engineering effort against real product value.
HIGHLIGHTS - Migrated a serverless JavaScript backend to TypeScript within 3 months with a full code
refactor.
- Migrated a legacy monolithic backend to NestJS microservices using a gradual dual-write
strategy.
- Built ecommerce/adtech integrations for Shopify, Klaviyo, Google, Meta, GTM, and Airbyte
workflows.
- Improved mobile team delivery flow, increasing average 2-week team capacity by 22% over 4
months.
SKILLS Backend JavaScript, TypeScript, Node.js, NestJS, Express, REST APIs,
gRPC, microservices, webhooks, background jobs, validation.
Frontend / Mobile React, Angular, React Native, Expo, frontend performance and
UX improvements.
Cloud / Data GCP, AWS, Firebase, MongoDB, PostgreSQL.
Integrations Shopify, Klaviyo, Google apps, Meta apps, GTM, Airbyte,
OAuth, Sentry, SendGrid.
Tooling Docker, CI/CD, GitHub, GitLab, AI integrations, CodeRabbit.
PROFESSIONAL EXPERIENCE
05/2025 - Present Full Stack Developer - Backend-Focused, Independent B2B / Contract
Projects
Selected long-term B2B projects
Blue Tees Golf - golf-tech mobile/backend platform
- Helped migrate a legacy monolithic backend to NestJS-based microservices using a gradual
dual-write data migration strategy.
- Extracted shared backend logic into internal npm packages to reduce duplication and
improve consistency across services.
- Refactored legacy modules into cleaner service boundaries and added MongoDB
validation/optimization for better data reliability.
- Worked across backend and React Native mobile features in a production golf-tech product.
Tie / Revenue Roll - ecommerce/adtech integration platform
- Built integration apps for Klaviyo, Shopify, Google, and Meta to connect ecommerce,
marketing, and advertising workflows.
- Worked on a Pandium-like integration platform covering OAuth, token management,
connected accounts, and app authorization.
- Automated tracking setup flows, including pixel generation, user-facing delivery, and
GTM/client-side configuration.
- Created custom Airbyte connectors and balanced requested features against feasibility, edge
cases, and engineering effort.
07/2024 - 08/2025 Full Stack Software Engineer, TechMagic / PriceAgent
Full-time employee at TechMagic
- Worked across a serverless backend and two React frontend applications for PriceAgent, a
pricing research / willingness-to-pay SaaS product.
- Gradually migrated a JavaScript serverless codebase to TypeScript while refactoring core
modules to improve maintainability, type safety, and development speed.
- Built backend and frontend features using AWS, Firebase, React, and TypeScript.
- Developed React Native / Expo features for an internal Firebase-based task-tracking mobile
application.
05/2020 - 07/2024 Full Stack Software Engineer, SoftServe
Full-time employee
- Worked as a full stack engineer across multiple client projects, including CRM systems,
trading/market-data interfaces, and real-estate business tools.
- Built and maintained frontend and backend features using React, Angular, Node.js/Express,
MongoDB, PostgreSQL, AWS, and GCP.
- Gained broad commercial experience across backend APIs, frontend interfaces, database
work, cloud services, performance/UX improvements, and microservice-based architectures.
EDUCATION IT Step University - Software Engineering coursework, 2 years completed.
LANGUAGES Ukrainian Native English C1-C2
Russian Native Availability Remote-first, open to
B2B / Contract /
Full-time
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The candidate's resume is posted at https://www.work.ua/resumes/19376973/