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Igor Pietraszewski

@igorpietraszewski

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Senior Frontend Engineer specializing in Angular and TypeScript, delivering maintainable enterprise web apps.

Poland

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What I'm looking for

I’m looking to own end-to-end Angular/TypeScript feature delivery with product partnership, using agentic coding tools to accelerate safely. I want teams that value strict TypeScript contracts, code reviews, and maintainable frontend architecture.

I’m a Senior Frontend Engineer with 10+ years delivering TypeScript and Angular applications across enterprise, banking, and AI-powered platforms. I take end-to-end ownership—from shaping scope with product stakeholders to shipping production code with strict data contracts and long-term maintainability.

At Fairmarkit, I owned LLM-integrated features, refining prompt structures and output contracts with backend engineers while keeping TypeScript types strict. At Venture Labs, I built two banking applications from scratch for 300+ German cooperative banks, and I’ve also modernized and refactored complex Angular frontends (including RxJS pipelines and CI/CD quality gates) using agentic coding tools like Cursor, GitHub Copilot, and Claude in production workflows.

Experience

Work history, roles, and key accomplishments

Senior Frontend Developer (Angular)

Alten Poland

Apr 2026 - May 2026 (1 month)

Refactored 20+ heterogeneous LLM evaluation report pages into 2 unified TypeScript/Angular templates to enable new composable inference reports for OpenVINO. Built daily-diff dashboards and modernized RxJS pipelines using a spec-driven agentic workflow with GitHub Copilot and Claude.

Angular TypeScript RxJS SCSS OpenVINO GitHub Co Pilot Claude Git

Senior Frontend Developer (Angular)

Fairmarkit

Jun 2025 - Mar 2026 (9 months)

Shaped and owned end-to-end delivery of an AI decision-support feature, building a TypeScript/Angular frontend that consumes LLM-generated supplier recommendations for enterprise procurement. Refined LLM prompt structures and output contracts with backend engineers while maintaining strict TypeScript types and code quality.

Angular TypeScript Signals RxJS NgRX Nx (Monorepo)AG Grid SCSS Cursor Claude Agile Scrum

Senior Frontend Developer (Angular)

Venture Labs

Jul 2023 - Apr 2025 (1 year 9 months)

Built two TypeScript/Angular applications from scratch for Atruvia AG’s core banking platform with end-to-end ownership from scoping through production. Migrated three Angular applications with NgRx state management modernization and implemented CI/CD and quality gates using Jenkins, SonarQube, Jest, and Cypress.

Angular TypeScript RxJS NgRX SCSS Jenkins SonarQube Jest Cypress Java

Senior Frontend Developer (Angular)

SII

Nov 2022 - Jul 2023 (8 months)

Delivered new TypeScript/Angular frontend modules for a financial instruments platform, including complex reactive forms and AG Grid tables for large datasets. Led framework version upgrades and collaborated with Java backend engineers and business analysts in Agile (Scrum).

Angular TypeScript RxJS AG Grid SCSS Java Agile Scrum

Senior Frontend Developer

Altoros

Apr 2018 - Nov 2022 (4 years 7 months)

Built and scaled a multi-tenant e-commerce platform with a TypeScript/Angular frontend and a Node.js backend, including prototyping admin-panel modules in React and evaluating Nest.js as the backend matured. Inherited and optimized a healthcare app by parallelizing queries and implementing lazy loading and pagination, then carried it to final client sale delivery.

Angular TypeScript JavaScript React Node AG Grid SignalR SCSS

Frontend Developer (Angular)

SolbegSoft

Apr 2016 - Apr 2018 (2 years)

Developed a work-order management platform for field service engineers by building responsive TypeScript UI components with Bootstrap and collaborating with backend and QA engineers in Agile. Contributed to the Angular-based frontend experience for a team of 10.

Angular TypeScript JavaScript jQuery SCSS Bootstrap Agile Scrum

Frontend Developer

Staronka

Nov 2015 - Mar 2016 (4 months)

Built UI components for a website-builder tool using JavaScript and AngularJS, implementing responsive layouts and fixing cross-browser rendering issues. Supported creation of usable frontend experiences for the product.

AngularJS JavaScript SCSS