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Full stack програміст
- Considering positions:
- Full stack програміст, Front-end програміст
- Age:
- 23 years
- City of residence:
- Ternopil
- Ready to work:
- Remote
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Anton Varvianskyi
Full Stack Developer
[open contact info ](look above in the "contact info" section) [open contact info ](look above in the "contact info" section) Lviv LinkedIn Telegram
Professional Summary
Full Stack Developer with 3+ years of commercial experience building and maintaining complex web applications
in cybersecurity and iGaming domains. Experienced in both frontend and backend development, with a strong
focus on implementing complex business logic and building maintainable, scalable solutions. Comfortable
owning features independently throughout the development lifecycle, contributing to technical and architectural
decisions, and collaborating closely with Product, QA, and engineering teams.
Professional Experience
Full Stack Developer, 4K-Soft Ltd | Cybersecurity 01/2025 – Present
Own and deliver complex features end-to-end, from requirements analysis and
•
technical design to implementation, testing, and release.
Implemented multi-step approval workflows across several business-critical modules,
•
covering both frontend interactions and backend business logic.
Took ownership of a new product module, designing and implementing a configurable
•
questionnaire template system from scratch across both backend and frontend.
Integrated and extended administration functionality covering user and group
•
management, role assignments, organization settings, and authentication flows across
frontend and backend.
Work closely with Product and QA teams to clarify requirements, decompose complex
•
functionality, and ensure reliable feature delivery.
Investigate and resolve issues across frontend, backend, authentication, and API
•
integration layers while continuously improving existing functionality.
Participate in code reviews and technical discussions, contributing to code quality,
•
maintainability, and shared engineering standards.
Write and maintain unit and integration tests for business-critical functionality.
•
Built and deployed a high-performance SSG website using Nuxt.js, GSAP, and
•
TailwindCSS, including complex animation flows and AWS S3 deployment.
Tech stack: TypeScript, Vue 3, Nuxt 3, Node.js, NestJS, MongoDB, PostgreSQL, AWS,
Docker, WebSockets, REST APIs, Jenkins
Full Stack Developer, NDA 04/2023 – 12/2024
Developed and maintained functionality across customer-facing and internal
•
administration applications, delivering new features and improving existing
production functionality.
Designed and implemented an administration interface for managing multilingual
•
promotional banners and dynamic content, integrating it with backend APIs and the
customer-facing application.
Contributed to backend functionality by implementing minor API and business-logic
•
changes required to support frontend features and integrations.
Integrated REST APIs and maintained reliable data flows between frontend
•
applications, administration tools, and backend services.
Investigated and resolved production issues across frontend, API integration, and
•
selected backend layers, identifying root causes rather than limiting fixes to UI-level
symptoms.
Worked with existing application architecture and reusable components, extending
•
functionality while maintaining compatibility with established product behavior.
Collaborated with Product and QA teams on requirements clarification, edge cases,
•
testing, and delivery of production features.
Tech stack: TypeScript, React, Next.js, Material UI (MUI), Node.js, NestJS, gRPC,
WebSockets, REST APIs
Technical Skills
Languages: TypeScript, JavaScript
Frontend: React, Next.js, Vue 3, Nuxt 3, HTML5, CSS3, SCSS, Tailwind CSS, Material UI (MUI)
State Management & Data: React Query, Zustand, Redux Toolkit, Pinia
Backend: Node.js, NestJS, Express.js, REST APIs, gRPC, WebSockets
Databases: PostgreSQL, MongoDB
Cloud & DevOps: AWS, Docker, Jenkins, Git
Testing: Jest, Unit Testing, Integration Testing
Engineering: SOLID, Design Patterns, Microservices, REST API Design, Authentication & Authorization
Education
Master's Degree in Computer Engineering, West Ukrainian National University 09/2024 – 12/2025
Bachelor's Degree in Computer Engineering, West Ukrainian National University 09/2020 – 06/2024
Languages
Ukrainian — Native
English — B2 (Upper-Intermediate)
Full Stack Developer
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Professional Summary
Full Stack Developer with 3+ years of commercial experience building and maintaining complex web applications
in cybersecurity and iGaming domains. Experienced in both frontend and backend development, with a strong
focus on implementing complex business logic and building maintainable, scalable solutions. Comfortable
owning features independently throughout the development lifecycle, contributing to technical and architectural
decisions, and collaborating closely with Product, QA, and engineering teams.
Professional Experience
Full Stack Developer, 4K-Soft Ltd | Cybersecurity 01/2025 – Present
Own and deliver complex features end-to-end, from requirements analysis and
•
technical design to implementation, testing, and release.
Implemented multi-step approval workflows across several business-critical modules,
•
covering both frontend interactions and backend business logic.
Took ownership of a new product module, designing and implementing a configurable
•
questionnaire template system from scratch across both backend and frontend.
Integrated and extended administration functionality covering user and group
•
management, role assignments, organization settings, and authentication flows across
frontend and backend.
Work closely with Product and QA teams to clarify requirements, decompose complex
•
functionality, and ensure reliable feature delivery.
Investigate and resolve issues across frontend, backend, authentication, and API
•
integration layers while continuously improving existing functionality.
Participate in code reviews and technical discussions, contributing to code quality,
•
maintainability, and shared engineering standards.
Write and maintain unit and integration tests for business-critical functionality.
•
Built and deployed a high-performance SSG website using Nuxt.js, GSAP, and
•
TailwindCSS, including complex animation flows and AWS S3 deployment.
Tech stack: TypeScript, Vue 3, Nuxt 3, Node.js, NestJS, MongoDB, PostgreSQL, AWS,
Docker, WebSockets, REST APIs, Jenkins
Full Stack Developer, NDA 04/2023 – 12/2024
Developed and maintained functionality across customer-facing and internal
•
administration applications, delivering new features and improving existing
production functionality.
Designed and implemented an administration interface for managing multilingual
•
promotional banners and dynamic content, integrating it with backend APIs and the
customer-facing application.
Contributed to backend functionality by implementing minor API and business-logic
•
changes required to support frontend features and integrations.
Integrated REST APIs and maintained reliable data flows between frontend
•
applications, administration tools, and backend services.
Investigated and resolved production issues across frontend, API integration, and
•
selected backend layers, identifying root causes rather than limiting fixes to UI-level
symptoms.
Worked with existing application architecture and reusable components, extending
•
functionality while maintaining compatibility with established product behavior.
Collaborated with Product and QA teams on requirements clarification, edge cases,
•
testing, and delivery of production features.
Tech stack: TypeScript, React, Next.js, Material UI (MUI), Node.js, NestJS, gRPC,
WebSockets, REST APIs
Technical Skills
Languages: TypeScript, JavaScript
Frontend: React, Next.js, Vue 3, Nuxt 3, HTML5, CSS3, SCSS, Tailwind CSS, Material UI (MUI)
State Management & Data: React Query, Zustand, Redux Toolkit, Pinia
Backend: Node.js, NestJS, Express.js, REST APIs, gRPC, WebSockets
Databases: PostgreSQL, MongoDB
Cloud & DevOps: AWS, Docker, Jenkins, Git
Testing: Jest, Unit Testing, Integration Testing
Engineering: SOLID, Design Patterns, Microservices, REST API Design, Authentication & Authorization
Education
Master's Degree in Computer Engineering, West Ukrainian National University 09/2024 – 12/2025
Bachelor's Degree in Computer Engineering, West Ukrainian National University 09/2020 – 06/2024
Languages
Ukrainian — Native
English — B2 (Upper-Intermediate)
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The candidate's resume is posted at https://www.work.ua/resumes/11515332/