Владислав

Vladislav Katrych
Full Stack Developer
Vulkanesti, Moldova | [відкрити контакти](див. вище в блоці «контактна інформація») | [відкрити контакти](див. вище в блоці «контактна інформація») | LinkedIn | t.me/vladislavenator
SUMMARY
Senior Full Stack Developer with 7+ years of experience delivering web products for e-commerce, SaaS, internal platforms,
and service teams. Worked across both product and outsourcing environments, combining hands-on development with
ownership of delivery, architecture decisions, and legacy modernization. Strong at building reliable user-facing systems,
improving maintainability, and adapting quickly to changing business needs. Strong at building reliable user-facing
systems, improving maintainability, and leveraging AI-assisted development workflows (GitHub Copilot, GenAI tools) to
accelerate feature delivery and optimize code quality.

TECH SKILLS
● Frontend: React, Next.js, JavaScript ES6+, TypeScript, CSS, SCSS
● State Management: Redux, Redux Thunk, Redux Saga, Zustand, local state
● Architecture: SSR, component architecture, modular architecture, reusable components, RBAC
● Backend: Node.js, Django, Python, Ruby on Rails
● Database: Prisma, MySQL, PostgreSQL
● API & Data: REST API, GraphQL, WebSockets, iframe integrations
● Build Tools: Webpack, Vite, Babel
● Infrastructure: Docker, SSH, Git, CI/CD
● UI Libraries: Material UI, Ant Design

● AI & Productivity Tools: GitHub Copilot, ChatGPT, Claude, AI-assisted code generation & debugging.
● Other: RegEx, Swagger, Gatsby, Vim

EXPERIENCE
Full-stack Developer | NDA (Multi-Project Product Systems) Apr 2024 – Present | Remote
Contributed across three internal products supporting end users, operators, and a risk management team. Worked
across React/Next.js frontends, Prisma/MySQL data layer, legacy modernization, and reporting.
● Delivered UI features for customer and operator chat systems with gifts, alerts, messages, and mail flows.
● Migrated the largest frontend to TypeScript, adding types to improve maintainability and change safety.
● Rebuilt legacy pages from scratch and refactored unstable frontend areas to support new features reliably.
● Built risk management tables in Next.js and React for user data, payment disputes, reports, and documents.
● Created MySQL tables and Prisma views for complex queries across multiple data sources and reporting needs.
● Designed and implemented RBAC with page-level permissions and Read, Write, and Block access levels.
● Added admin interfaces to create users, assign permissions, and manage access without DB changes.
● Added document generation with table data injection and intermediate editing to streamline reports.
● Standardized project documentation to improve knowledge transfer and support work with legacy modules.
● Collaborated on query and data cleanup to remove duplicates and improve reliability of displayed records.
● Partnered with backend, PM, and design to resolve duplicate data issues and document legacy behavior.
● Integrated AI-assisted development tools (GitHub Copilot, ChatGPT/Claude) into the daily workflow, leveraging prompt engineering
to accelerate boilerplate generation, optimize legacy code refactoring, and speed up TypeScript migration.

Frontend Team Lead (React) | LeanSquad Oct 2023 – Apr 2024 | Remote
Led delivery of multiple small business products built with low-code tools and custom React solutions. Owned task
planning, deadlines, code review, mentoring, and technical decisions across a 4-person team.
● Led 3 React developers across about 9 parallel projects with ownership for delivery quality and timelines.
● Defined scope, stack, estimates, and deadlines with sales before projects moved into delivery.
● Distributed tasks across the team and ran all code reviews to keep solutions consistent.
● Improved maintainability by migrating projects to TypeScript and replacing class components.

● Refactored frontend code into functional components and split logic into reusable modules.
● Proposed and started implementing a shared component library to speed up future delivery.
● Built custom products with React and Zustand alongside low-code frontend and backend solutions.
● Contributed to Ruby on Rails backend development when projects required custom API work.
● Mentored middle and junior engineers while adapting delivery to shifting requirements and workloads.
● Promoted the adoption of AI productivity tools within the team, setting up best practices for AI-driven code generation,
automated unit testing, and documentation writing to boost development velocity.

Full-stack Developer | WorkNest (Automated Testing Platform) Aug 2022 – Aug 2023 | Remote
Worked as the sole frontend engineer on a released testing platform, delivering features and optimizations. Focused on
execution visibility, real-time interactions, UI performance, and frontend-side architecture.
● Built new frontend features based on client requirements and owned implementation end to end.
● Shifted the UI from a table-based view to dashboards and drag-and-drop flows for faster work.
● Improved application performance by about 30% through frontend optimization and bug fixing.
● Fixed API contract issues, authorization problems, UI inconsistencies, and unstable interactions.
● Refactored legacy code that caused slow execution tracking and weak control over test runs.
● Resolved memory leaks and stabilized long-running flows to improve platform responsiveness.
● Replaced Redux Thunk with Redux-Saga to control, stop, and monitor running test executions.
● Improved progress tracking so test run states and progress bars were displayed correctly.
● Worked closely with a backend engineer, using Swagger and sync calls with the owner and CTO.

Software Engineer | SoftServe Aug 2020 – Aug 2022 |Remote

Worked on multiple client projects for Expedia Group and Atlassian, contributing to large-scale web applications,
reporting platforms, and booking-related systems.
● Developed and maintained React-based frontend applications within distributed Agile teams.
● Contributed to several Expedia Group projects, including booking and calendar-related functionality for
property owners and renters.
● Implemented UI features involving date management, pricing workflows, availability handling, and complex
business rules.
● Built reusable React components and participated in frontend architecture improvements.
● Worked on a reporting platform for Atlassian used by management teams to visualize community and
operational metrics.
● Became the primary frontend developer on the Atlassian project, taking ownership of frontend architecture
and implementation.
● Reorganized component structure and improved application maintainability through reusable UI patterns.
● Implemented data fetching and visualization flows using GraphQL-based integrations and iframe-delivered
reporting content.
● Participated in technical interviews and knowledge transfer activities when transitioning project ownership.
● Collaborated closely with project managers, stakeholders, and engineering teams to deliver new functionality
and maintain product stability.

Full-stack Developer (React, Next.js, Django) | Independent Contractor Feb 2019 – Aug 2020 | Remote
Delivered frontend and full-stack work for e-commerce, operations, service marketplace, and media products. Worked
across React, Redux, Next.js, Django, PostgreSQL, Python, and SSR-heavy production systems.
● Built new features and fixed broken legacy functionality for the Kaiser+Kraft B2B commerce platform.
● Resolved frontend bottlenecks tied to custom SSR, webpack configuration, and unstable legacy code.
● Owned the full Jupser order monitoring system, rewriting the frontend and building a Django backend.
● Implemented order queue logic, status updates, delivery timelines, and production-facing tracking flows.
● Set up Django signals and parsed data from a PHP backend under a tight learning and delivery timeline.
● Led frontend architecture for GoStylePro, an MVP for barber discovery, reviews, pricing, and booking.
● Integrated Stripe payments and built the client-facing UI in a lean team with full frontend ownership.

● Built promo and tournament pages for WePlay.tv and supported tooling for automatic page generation.
● Worked with Next.js SSR, reusable components, and frontend performance optimization at scale.

Frontend Developer (React) | CIAT (Accounting Web Platform) Apr 2017 – Feb 2019 | Remote
Contributed to a web accounting platform that moved key workflows from desktop systems into the browser. Supported
product growth through frontend delivery, team guidance, user support, and process contribution.
● Built frontend functionality for a web platform that simplified document work and printing flows.
● Helped scale the product beyond legacy desktop limitations by supporting ongoing feature expansion.
● Guided two junior developers through onboarding, daily work, and project-specific implementation details.
● Reviewed code, advised on component structure, and helped keep frontend changes consistent.
● Reported delivery progress every two weeks and supported coordination across the small team.
● Contributed ideas for improvements during technical discussions, with multiple proposals adopted.
● Worked through complex document logic, user-facing support needs, and product constraints in production.
● Handled document locking scenarios and other accounting-specific frontend edge cases.
● Adapted quickly to new technologies while balancing hands-on delivery and team guidance.

EDUCATION
Bachelor's degree, Computer Software Engineering, Industrial and Economic College of National Aviation University

LANGUAGES
English – B2, Ukrainian – Native, Russian – Fluent