Андрій

Andrii Semyrozum
Full-Stack Engineer
Contact
• Lviv, Ukraine
• [відкрити контакти](див. вище в блоці «контактна інформація»)
• LinkedIn
• https://t.me/semandre
• [відкрити контакти](див. вище в блоці «контактна інформація»)

About
JavaScript developer with 9+ years of experience in developing and designing SaaS platforms using Angular, React
and NodeJS. Actively using AI-powered development tools such as Claude Code and Kiro AI on a daily basis to
accelerate development, improve code quality and documentation. Hard-working, communicative person, ready to
take advice as well as give it to team members. Have deep understanding of modern software architectures, design
patterns, and SOLID principles. Extensive experience in software design, development of new features, code
refactoring and debugging, performance tuning, and fixing defects. Experience conducting technical interviews from
Junior to Lead positions. Team leading and mentoring experience.

Education
Lviv National Polytechnic University
Masters Degree in Computer Engineering
SEP 2014 - DEC 2019
Courses
OktenWeb University, Javascript Full-Stack
SEP 2017 - DEC 2017

Skills

Backend: Code Principles: Tools/AI:
• NodeJS (ExpressJS, Serverless, • SOLID • AWS S3
Nest.JS) • KISS • AWS IAM
• AWS Lambdas • YAGNI • AWS CloudFormation
• TypeORM • DRY • AWS Cognito
• Kafka • AWS EventBridge
Networking:
• AWS CloudFront
Frontend: • REST
• GitHub / GitLab / Bitbucket
• Angular 22+ • Websockets
• Docker
• Angular Signals • GraphQL
• NX
• React, Next.js
Testing: • Claude Code
• HTML
• Karma • Kiro AI
• CSS, LESS, SASS
• Jasmine • Copilot
• NgRx
• Jest
• Angular Material, Bootstrap CI/CD:
• Cypress
• Bitbucket pipelines
Primary languages:
Databases: • GitHub Actions
• Javascript
• Postgres / AuroraDB • GitLab CI/CD
• Typescript
• MongoDB
Languages:
• Redis
• English - Upper-Intermediate+
• Firebase
• Ukrainian - Native

Experience

Nortal
08.2023 - Present

Full-Stack Developer, Global tourism, GER, OCT 2025 - Present

Description
Global travel and tourism project which connects different hotels, airlines, cruise ships and retail shops
Responsibilities
• Development of micro-frontend projects from scratch. Migrating to new architecture patterns
• Tasks planning, Scrum processes, Code reviewing, Continuous cooperation with developers
• Using AI tools on daily basis to develop new code, research new solutions and improve the product
• Writing e2e tests using Cypress
• AWS Lambda functions support

Tools & Technologies
Angular 22, Angular Signals, RxJS, Nx, Jest, HTML 5, Scss, NestJS, Postgres, Kafka, Redis, AWS (Lambda, S3,
IAM, CloudFormation), Kiro AI, Claude Code
Team Size
1 Lead, 4 Backend, 4 Frontend, 1 SM, 3 BA, 2 QA, 1 Devops, 2 UI/UX

Full-Stack Developer, Streaming / OTT, SWE, AUG 2023 - OCT 2025

Description
Admin console for OTT/streaming services: a single platform for partners to manage their media library (CMS), end
users (CRM), offers, promotions and service settings. Built from scratch and embedded into the existing admin core
via a reverse proxy.
Responsibilities
• Greenfield development with Next.js (App Router) and React Server Components
• Designing the app architecture: server-side data-access layer, typed API clients, proxy integration with the admin
core
• Building CMS, CRM, offers and promotions modules with server-driven tables, forms and validation
• AWS S3 media uploads via presigned URLs, AWS SSM for secrets
• Design system setup (Radix UI + Tailwind) with light/dark theming

Tools & Technologies
Next.js 16, React 19, TypeScript, Tailwind CSS 4, Radix UI, React Hook Form, Zod, TanStack, AWS (S3, SSM),
Docker, Claude Code
Team Size
2 Frontend, 2 Backend, 1 UI/UX, 1 SM, 1 QA

Newfire Global Partners
09.2019 - 08.2023

Lead Full-Stack Developer, Healthcare, USA, MAY 2022 - AUG 2023

Description
Learning Management System for Psychology
Responsibilities
• Full cycle project development from scratch to its release
• Team leadership, Tasks planning, Scrum processes, Developing project architecture, Code reviewing, Supporting
developers
• Nx monorepo setup. IAM configuration, S3 configuration, Serverless configuration, Angular setup
• Test coverage support for BE/FE applications for more than 80%
• Developing features with WAI/ARIA support

Tools & Technologies
Angular 15, RxJS, Nx, Jest, HTML 5, Scss, NodeJS, AWS, Lambdas, Serverless Framework, S3, TypeORM, Aurora
(Postgres), Cognito, EventBridge, GraphQL
Team Size
1 Lead Full-Stack, 2 Backend, 2 Frontend, 1 PM, 1 BA, 1 QA, 1 Devops, 1 UI/UX

Full-Stack Developer, E-commerce, CAN, MAR 2022 - JUL 2022

Description
Security project for documents validation
Responsibilities
• API implementation from scratch using AWS Lambda, GraphQL, Apollo, MongoDB (DocumentDB)
• Developing new features
• Bugfixing
• Code reviews
• Supporting Accessibility in project
• Test coverage over 90% for FE app

Tools & Technologies
AWS Lambda, GraphQL, Apollo, MongoDB (DocumentDB), Angular 13, RxJs, HTML 5, Scss, Docker, Karma,
Jasmine
Team Size
1 Architect, 3 Frontend, 3 Backend, 1 UI/UX

Full-Stack Developer, HR Platform, USA, FEB 2021 - FEB 2022

Description
The platform is focused on small and medium-sized enterprises and helps to manage new team members
onboarding, systems accesses, vacations/sick days, salary/payroll, CRM, and serving up to 200k customers monthly
Responsibilities
• Developing new features
• Code refactoring, reviews
• Bugfixing
• Participating in all Scrum processes with Product owner and external team

Tools & Technologies
Angular 9+, HTML 5, SCSS, RxJs, PostgreSQL, NodeJS, Sails.js, Docker
Team Size
1 Architect, 2 Full-Stack, 1 Backend, 1 BA, 2 QA, 1 UI/UX, 1 PM

Frontend Developer, Healthcare, USA, SEP 2019 - FEB 2021

Description
Platform that collects and analyzes data about people with Type 1 Diabetes through several surveys
Responsibilities
• Developing new features
• Writing local libraries for separate projects
• Participation in architecture plannings
• Code refactoring
• Third-party API integrations like DexCom or ReferralRock
• Participating in all Scrum processes with Product owner and external team

Tools & Technologies
Angular 11+, HTML 5, SCSS, RxJs, NgRx, Jenkins, Docker
Team Size
2 Architects, 4 Frontend, 4 Backend, 4 Data analysts, 2 QA, 1 SM, 1 PM, 1 Devops, 2 AQA, 1 UI/UX

Binariks
10.2017 - 09.2019

Frontend Developer, E-commerce, USA, JAN 2019 - OCT 2019

Description
Food delivery platform
Responsibilities
• Developing the platform from scratch
• Migrating the mobile app from Ionic 1 to Ionic 4
• Implementing charts and real-time chat
• Developing new features and maintaining legacy code
• Code reviews and participating in Scrum plannings
• Providing unit and integration test coverage

Tools & Technologies
Angular 7+, Ionic 4, Capacitor, Cordova, RxJS, AMCharts, Pusher, HTML 5, SCSS, Laravel, Postgres
Team Size
2 Architects, 2 Team Leads, 6 Frontend, 14 Backend, 1 PM, 2 SM, 4 QA, 2 Devops, 1 UI/UX

Full-Stack Developer, Fintech, JUN 2018 - DEC 2018

Description
Financial platform for private investors and financial advisors
Responsibilities
• Full cycle project development from scratch to its release
• Migration project from Angular JS to Angular 6
• Supporting old website on AngularJS, working with an admin part. Supporting NodeJS API
• SCRUM plannings

Tools & Technologies
Angular 6, AngularJS, Angular Material, Bootstrap 4, RxJS, NgRx/Store (redux), NodeJS, Express, Websockets,
MongoDB
Team Size
1 Architect, 3 Full-Stack, 1 Devops, 1 QA, 1 UI/UX, 1 PM

Frontend Developer, E-commerce, USA, OCT 2017 - JUN 2018

Description
Cloud-based business system with a set of modules for effective client tracking
Responsibilities
• Developing and designing new modules and features from scratch
• Supporting and extending the existing platform
• Bugfixing, including UI and graphical issues

Tools & Technologies
AngularJS, Angular, NodeJS, Express, Firebase, Cordova, HTML 5, CSS 3, SVG
Team Size
2 Frontend, 1 Backend, 1 QA, 1 PM