Особисті дані приховані

Volodymyr Zaplatynskii
Senior Angular Engineer
[відкрити контакти](див. вище в блоці «контактна інформація») | [відкрити контакти](див. вище в блоці «контактна інформація») | github.com/Valdemar26 | Lviv, Ukraine

SUMMARY
Senior front-end engineer with 7+ years building large, complex enterprise SPAs, almost entirely in Angular and TypeScript. Recent work is focused
on data-heavy financial analytics UI — budgets, contracts and purchase orders, invoicing and plan-vs-actual reporting — including custom
visualisations built from scratch where no library covered the requirements.
Over the past year I have worked daily in an AI-assisted development workflow and designed the process around it: project-level conventions for
coding agents, mandatory review of generated changes, and quality gates, because the bottleneck has shifted from writing code to verifying what
the machine wrote.
I regularly take technical ownership — architecture decisions, code reviews and driving conventions across a large codebase — and have led a small
front-end team, mentoring two junior developers through to passing their assessments and growing into middle engineers. Domains: Healthcare,
Retail & Distribution, AdTech and enterprise consulting.

CORE SKILLS
Angular & front-end: Angular (5 → 21), Signals, standalone components, modern control flow, RxJS, NgRx / @ngrx/signals, TypeScript, JavaScript /
ES6, HTML5, CSS3, SCSS, SVG, Chart.js, REST
Testing & quality: Vitest, Karma, Jasmine, Cypress, code review, quality gates, architecture and code-quality audits
AI-assisted development: Claude, GitHub Copilot, project-level agent conventions, prompt design, Anthropic API (streaming tool use, prompt
caching, token tracking)
Tooling & practice: Git, Azure DevOps, Azure Maps, team leadership & mentoring, technical interviewing, design patterns, sprint demos

WORK EXPERIENCE

Senior Angular Engineer Feb 2025 – Aug 2026 · 1 yr 7 mos
Trinetix (client: US enterprise consulting firm) · Full-time · Remote, Lviv, Ukraine
Angular 19, Signals, TypeScript, RxJS, @ngrx/signals, Chart.js, SVG, Vitest, SCSS, Azure DevOps, Azure Maps
● Built core features of an enterprise real-estate portfolio analytics platform from scratch, from architecture decisions through to production.
● Delivered financial analytics UI: budgets, contracts and purchase orders, invoicing, plan-vs-actual comparison across multi-million dollar
portfolios, and dashboards for financial metrics.
● Developed data-heavy UI: interactive dashboards with Chart.js, editable scheduling grids with inline editing, validation and predecessors, and a
custom Gantt timeline built from scratch in SVG — dependency arrows, three time scales, synchronised scrolling between table and bars. No
available library covered the requirements.
● Integrated Azure Maps with custom clustering and filtering for geographic portfolio data.
● Modernised the codebase, migrating legacy patterns to signals, standalone components and the new control flow.
● Designed the project’s AI-assisted development workflow: authored project-level conventions for coding agents so generated code matched
the existing codebase, with mandatory diff review before anything was integrated.
● Introduced quality gates for AI-generated code after finding that agent-written tests frequently assert nothing and pass regardless of the
implementation — added this as an explicit code-review check alongside Vitest coverage.
● Collaborated closely with the backend team on API contracts and data models, troubleshooting integration issues end to end.
● Acted as the technical reference point on the front end: drove coding conventions and ran an architecture and quality audit of the codebase.
● Ran bi-weekly sprint demos for the team and stakeholders, explaining delivered functionality from business and technical angles.
JavaScript Software Engineer (Angular) Aug 2022 – Jan 2025 · 2 yrs 6 mos
AdsHero · Contract · Warsaw, Poland — Remote
Part-time until Apr 2024, full-time from May 2024 · Angular, TypeScript, RxJS, NgRx, Cypress, unit tests (Jasmine, Karma, marbles), Bootstrap 4-5
● Implemented and maintained platform features for managing ad campaigns on e-commerce marketplaces, focusing on performance and
scalability.
● Regularly wrote Cypress E2E tests to ensure platform stability and a seamless user experience.
● Delivered presentations to team members and stakeholders, explaining progress, challenges and proposed solutions.
● Conducted code reviews and prepared proposals to improve code quality, maintainability and reliability.
Software Engineer (Angular) May 2023 – May 2024 · 1 yr 1 mo
Expandi · Contract · Eindhoven, Netherlands — Remote
Angular, TypeScript, RxJS, Cypress
● Developed the front end of a SaaS platform for LinkedIn automation enabling multi-channel lead outreach.
 ● Wrote Cypress tests and collaborated closely with back-end, QA and design teams to align on requirements and ensure seamless integration.
● Contributed to platform maintenance, bug resolution and feature enhancements.
Senior Software Engineer Nov 2021 – May 2023 · 1 yr 7 mos
EPAM Systems · Full-time · Lviv, Ukraine
Angular, TypeScript, RxJS, JavaScript, unit tests (Karma)
● Led a small front-end team of two junior developers, mentoring them through to passing their assessments and growing into middle engineers.
● Led front-end development across multiple projects in different domains, enhancing UI and business functionality.
● Conducted 50+ technical interviews and contributed to shaping the hiring process.
● Improved code quality and project stability by introducing unit tests with Karma.
● Contributed to EPAM’s JStify Community by publishing educational JavaScript content on Medium.
Frontend Developer Jun 2019 – Oct 2021 · 2 yrs 5 mos
CROSSSOFT. GmbH · Full-time · Lviv, Ukraine
Angular 8, TypeScript, RxJS, HTML5, SCSS
● Developed a healthcare-domain project, delivering new features and maintaining existing functionality.
● Co-created a custom UI component library similar to Angular Material, adapted to the needs of company projects.
● Contributed to refactoring and improving the codebase for better performance and maintainability.
Frontend Developer Sep 2018 – Jun 2019 · 10 mos
CodeLions · Full-time · Lviv, Ukraine
Angular 5, TypeScript, RxJS, HTML5, SCSS, Angular Material
● Developed and maintained front-end features across several client projects, ensuring consistent UI with Angular Material.

PROJECTS

Financial AI Chat — financial-ai-chat-mvp.vercel.app · github.com/Valdemar26/Financial-AI-Chat-MVP
● Angular 21 application on the Anthropic API: upload Excel/CSV financial data, ask questions in plain language, get answers with generated
Chart.js visualisations.
● Streaming tool use, prompt caching (~45% cost reduction), per-session token tracking, server-side API layer holding credentials.

CERTIFICATIONS & COURSES

● Azure AI Fundamentals (AI-900) — preparation course, EDUCBA / Coursera
● Generative AI for Everyone — DeepLearning.AI / Coursera
● Google Prompting Essentials (prompt design and applied AI for work tasks) — Google / Coursera

EDUCATION

Lviv Polytechnic National University 2004 – 2010
Bachelor of Architectural Sciences

LANGUAGES
English (B2, Upper-Intermediate) · Ukrainian (Native)