Ihar Petrasheuski also Igor Pietraszewski

Senior Frontend Developer
Angular · 10+ years in frontend

Ten years of Angular, from version 2 to 22. I build the kind of frontend that has to keep working: banking apps used daily by 300+ German cooperative banks, an AI procurement platform for US enterprises, evaluation tooling for Intel. Most of my work is architecture, performance and accessibility — the parts of a product people only notice when they are missing.

Available now · B2B (JDG) · Wrocław / hybrid / remote ExperienceAngularWrocław, Poland10+ years in frontend
Download CVBook a call[email protected]
Spoken
EnglishFluent
PolishB2
RussianNative
BelarusianNative

Skills

Frontend
Angular (2-22)Nx MonorepoModule FederationNgRxRxJSSignalsAG GridTypeScriptJavaScriptHTMLSCSSBootstrap
Tools
JestJasmineCypressPlaywrightStorybookSonarQubeGitJenkinsDockerAWSWebpackNode.jsJira / Confluence
Methodologies
Frontend ArchitectureAgile (Scrum, SAFe)Code ReviewsPerformance OptimizationCI/CD
AI Dev Tools
GitHub CopilotCursorClaude CodeAnthropic API (spec-driven agentic workflows)

Experience

Apr 2026 — May 2026 Wrocław, Poland Part-time contract

Frontend Developer (Angular)

Alten Poland · Intel — LLM Evaluation Tooling for OpenVINO

A short, sharp engagement: collapse a sprawling set of LLM-evaluation pages into a single coherent surface, and stand up the dashboards engineers actually use to compare releases.

  • Refactored 20+ heterogeneous LLM evaluation report pages into 2 reusable Angular templates with configurable RxJS data pipelines, enabling ~10 new composable reports without per-report frontend rework.
  • Built daily-diff dashboards comparing LLM inference metrics (latency, throughput, runtime parameters) across releases, giving engineers instant regression visibility versus the prior day and prior build.
  • Delivered the refactor using a spec-driven agentic workflow: authored strict Angular component and service specs, then iterated step-by-step with GitHub Copilot and Claude Opus.
AngularTypeScriptRxJSSCSSGitHub CopilotClaude Opus
Jun 2025 — Mar 2026 USA (Global) Via contractor

Senior Frontend Developer (Angular)

Fairmarkit · AI-Powered Enterprise Procurement Platform

Procurement is largely paperwork translated into software. The goal here was to make the software do the reading — surface AI-driven recommendations inside the workflows buyers already trust.

  • Built an AI decision-support feature in Angular 21 consuming LLM-generated supplier recommendations, helping procurement teams select optimal vendors from large historical and real-time datasets.
  • Architected a workflow-consolidation module using AG Grid with server-side data processing, unifying fragmented procurement workflows into a single table with LLM-analyzed best-fit vendor options.
  • Delivered an automation dashboard using Angular Signals and NgRx for reactive state management, improving procurement workflow visibility across a platform serving enterprise clients globally.
  • Drove frontend architecture decisions in a cross-functional team of ~10 within a ~200-person engineering org, and enforced code quality through systematic Angular code reviews in Scrum.
Angular 21TypeScriptSignalsRxJSNgRxNx MonorepoAG GridSCSS
Jul 2023 — Apr 2025 Poland

Senior Frontend Developer (Angular)

Venture Labs · Atruvia AG — Core Banking Platform (300+ German Cooperative Banks)

Two greenfield Angular apps sitting inside the day-to-day of 300+ German cooperative banks. Banking-grade reliability, WCAG accessibility, and an Angular version-treadmill that never stops.

  • Built 2 Angular applications from scratch for Atruvia AG's core banking platform, now actively used by 300+ German cooperative banks.
  • Migrated 3 production applications across Angular 14 to 19 with full RxJS and NgRx modernization, delivering zero breaking-change deployments for banking-critical infrastructure.
  • Designed and maintained Jenkins CI/CD pipelines covering build, test, and deployment, enforcing quality gates with SonarQube, Jest unit tests, and Cypress E2E tests across all apps.
  • Conducted regular code reviews and drove Angular best-practice adoption in a cross-functional Agile team of 10+.
Angular 14-19TypeScriptRxJSNgRxSCSSJenkinsSonarQubeJestCypress
Nov 2022 — Jul 2023

Senior Frontend Developer (Angular)

SII · Finance — Financial Instruments Management Platform

Financial instruments software lives or dies on grid performance and version discipline. I led both — and the architecture conversations that go with them.

  • Delivered new Angular modules for a financial instruments management platform, including complex reactive forms and AG Grid tables handling large financial datasets.
  • Led Angular version upgrades (10 to 12) and contributed to frontend architecture decisions across a team of 10+.
  • Collaborated with backend, QA, and business analysts in Scrum to ship financial product features on schedule.
Angular 10-12TypeScriptRxJSNgRxAG GridSCSS
Apr 2018 — Nov 2022

Senior Frontend Developer

Altoros · E-Commerce, Healthcare, Insurance & Grant Management Platforms

Four years of breadth: a multi-tenant e-commerce platform from scratch, a healthcare app that needed RxJS-shaped surgery, a real-time incident system shipped solo, and a grant-management product inside a large Agile org.

  • Built and scaled a multi-tenant e-commerce platform in Angular 11-14 with a Node.js backend, letting merchants manage independent shops with separate databases via a custom admin panel.
  • Inherited an incomplete healthcare application, parallelized N+1 queries and implemented lazy loading and pagination, optimizing performance and delivering the application to final client sale.
  • Architected a real-time incident management system with live map visualization in Angular 6-8, AG Grid, and SignalR as the sole frontend developer (1 FE, 2 BE, 1 QA, 1 PM).
  • Contributed to a grants-distribution platform with mandatory unit test coverage, and handled a short Node.js backend rotation.
Angular 6-14TypeScriptRxJSAG GridSignalRNode.jsSCSS
Apr 2016 — Apr 2018

Frontend Developer (Angular)

SolbegSoft · Field Service Work-Order Management Platform

Where it started — a work-order platform for field-service engineers, the first encounter with the (modern) Angular ecosystem that would shape the next decade.

  • Developed a work-order management platform for field service engineers in Angular 2-6: field managers logged issues, the server created work orders, and the web/mobile app delivered tasks to engineers in real time.
  • Built responsive Angular UI components with Bootstrap, collaborating with 5 backend and 2 QA engineers in an Agile team of 10.
Angular 2-6TypeScriptJavaScriptjQuerySCSSBootstrap
Nov 2015 — Mar 2016

Frontend Developer

Staronka · Website Builder Platform

Four months at an early-stage startup, and the very first line of AngularJS — cross-browser rendering fights and responsive layouts before any of it had a name.

  • Built UI components for a website-builder tool at an early-stage startup using AngularJS, implementing responsive layouts and resolving cross-browser rendering issues.
AngularJSJavaScriptjQuerySCSS

Portfolio

See all work
Side project · 2026

Jobcraft

A personal job-search tool built end-to-end outside any corporate context — Angular on the front, NestJS behind it, a Python service alongside, self-hosted on a Hetzner VPS at jobcraft.dev.

LLM eval tooling · 2026

LLM Evaluation Tooling

Collapsing a sprawling set of Intel OpenVINO LLM-evaluation pages into one coherent surface, plus the daily-diff dashboards engineers use to compare releases.

Procurement workflow · 2025–2026

Procurement AI

An AI decision-support feature for an enterprise procurement platform — the software does the reading, surfacing LLM-generated recommendations inside the workflows buyers already trust.

Banking platform · 2023–2025

Core Banking Platform

Two greenfield Angular applications sitting inside the day-to-day of 300+ German cooperative banks — banking-grade reliability on a version treadmill that never stopped.

Maintenance ops · 2016–2018

Field Service Work Orders

A work-order management platform for field-service engineers — the first encounter with the Angular ecosystem that shaped the next decade.

Education
Belarusian State Technological University
Bachelor's Degree — PE and Systems of Information Processing

Courses & Certificates

learn.javascript.ru · 2026
React Course
learn.javascript.ru · 2026
Next.js Development
learn.javascript.ru · 2022
JS Architecture Workshop
learn.javascript.ru · 2022
RxJS Workshop
learn.javascript.ru · 2021
Advanced Angular 10-11 Intensive
learn.javascript.ru · 2019
Node.js Course
learn.javascript.ru · 2018
Advanced Angular Masterclass
learn.javascript.ru · 2017
Angular 4.x Course

Contact

Phone
LinkedIn
ijerweb
© 2026 Ihar PetrasheuskiWrocław, Poland