Jacek Bednarczyk

AI/ML • Wrocław, Poland • UTC+01:00 • Work permits: Poland • English: C1 • Available in 5 weeks • from $90k per year

Software Developer

11+ years exp

4+ years ML exp

JavaScript

Node JS

TypeScript

Active 29 days ago

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Overview

Technical skills

Timeline

Roles

Overview

Senior full-stack/platform engineer with 10+ years of experience delivering enterprise web systems. Strong in TypeScript/JavaScript with Angular, NestJS and Node.js, designing reusable workflow components, APIs, and automated testing. Experienced in observability with OpenTelemetry and in using AI-assisted development tools to speed up implementation and iteration.

Phone

Technical skills

Languages

JavaScript

Node JS

TypeScript

Node JS

Nest.JS

Express

Puppeteer

DevOps

AWS

GCP

OpenTelemetry

Docker

Frontend

Angular

D3.js

JQuery

Redux

RxJS

Other

Spring Boot

Copilot

Claude Code

React.js

Claude

ElasticSearch

MySQL

Redis

Apache Kafka

DynamoDB

GitHub

Heroku

Git

Rest API

Webpack

OpenAI Codex

Clean Architecture

Timeline

Senior Software Engineer at HSBC Technologies • Senior

Sii Polska • Full-Time

Feb 2022 to Present 4 Years 8 Months In office

Delivered full-stack features for enterprise banking platforms, owning work from requirements through production. Led rollout of a reusable dictionary-based CMS workflow model across multiple projects and acted as tech lead for a communications tracker workflow application. Implemented D3-based visualizations, designed reusable workflow APIs, strengthened resilience, and improved observability with OpenTelemetry. Standardized API design with OpenAPI/Swagger and supported delivery via testing, code reviews, and AI-assisted development.

Angular

RxJS

Node JS

Nest.JS

Docker

D3.js

OpenTelemetry

Swagger

Copilot

Claude Code

Fullstack Developer at Roche Technologies • Middle

Astek • Full-Time

Jun 2020 to Jan 2022 1 Year 7 Months In office

Built full-stack features for data-oriented products by integrating frontend delivery with backend services and workflow automation. Developed data visualization modules using D3/C3 and created Google Sheets-based input workflows to simplify structured data entry. Automated PowerPoint report generation, implemented GCP chatbot-related functionality, and improved product visibility with analytics monitoring. Enhanced backend data-fetching APIs in Spring and extracted data from SAP for downstream processing.

Angular

Redux

JQuery

Puppeteer

Node JS

GCP

D3.js

Spring Boot

Google Sheets

Akademia Humanistyczno-Ekonomiczna w Łodzi (AHE)

Bachelor's Degree • Computer Science

2019–2021 Łódź, Poland

Software Developer • Middle

Pronos S.A • Full-Time

Feb 2020 to Mar 2020 1 Month In office

Built and integrated Node.js API endpoints for a portfolio managing application. Worked on backend endpoints to support application workflows and data exchange. The CV does not provide additional implementation details for this role.

Node JS

Express

Software Engineer at Volvo Technologies • Middle

Ework Group • Full-Time

May 2019 to Feb 2020 9 Months In office

Built and integrated Node.js API endpoints for an order tracking platform to enable frontend-backend data exchange. Developed order tracking features using vanilla JavaScript and Node.js, covering UI behavior, integration logic, and application behavior. Coordinated with an international team on implementation, reviews, and feature delivery.

JavaScript

Node JS

Software Developer • Middle

Altimi/Softiti • Full-Time

May 2015 to May 2015 0 Months In office

Designed and delivered web applications and microservices for international clients across multiple projects. Contributed across frontend and backend development depending on project scope, working in Agile, Kanban, and Scrum teams. Implemented solutions using Angular and backend technologies on AWS, including Node.js services and Java-based components where applicable.

Angular

JavaScript

Node JS

Express

Nest.JS

AWS

Java

Junior Java Developer • Junior

Look4IT • Full-Time

Jul 2014 to Sep 2014 2 Months In office

Worked as a Junior Java Developer. The CV does not provide additional detail on specific responsibilities or technologies used during this role. This position reflects early Java development experience in the candidate’s career history.

Java

Trainee • Junior

Sygnity • Full-Time

Aug 2013 to Feb 2014 6 Months In office

Worked as a Trainee at Sygnity. The CV does not include details about tasks, technologies, or outcomes for this role. This entry indicates an early career training stage before later full software engineering positions.