Dominik Gronkiewicz
Summary
Senior Web Developer with a strong focus on front-end development. Extensive hands-on experience across corporate and startup environments, specializing in building scalable systems with React, Next.js, Node.js and modern Web3 integrations. Proven track record of delivering platforms in finance, healthcare, sports and culture. Strong emphasis on quality, reliability and client outcomes. I am deeply interested in mobile web development using JavaScript. Currently focused on strengthening the connection between technical solutions and measurable business impact.
Motivated, responsible, and self-disciplined, with a consistent drive to explore and adopt new technologies and frameworks.
Experience
Web Developer / Technical Consultant
Global Center for Health Diplomacy and Inclusion (CEHDI)
08/2025 – 12/2025, 01/2026 – 02/2025
- Website UI redesign
- Sanity CMS integration
- Designing app architecture
- Designing data structure
- Writing GROQ queries
- Implementing SSR and API using Next.js
- Implementing SEO technical standards
- Managing infrastructure
Web Developer
Flowrence Inc.
08/2025 – 01/2026
- Splitting client facing and internal web applications. React app migration to Next.js and Tailwind CSS
- Implementing SEO technical standards
- Translation and routing practices
- Integrating Sanity CMS
- Improving customer journey with Google Analytics, Google Tag Manger and A-B testing UI solutions
- Creating UI for emails
- Designing data structure for CMS
- Writing GROQ queries
Senior Engineer (Front-end, PWA)
Altimetrik Sp. Z O. O. / Novartis A.G.
12/2023 – 08/2025
- Creating app for financial statistics PWA/hybrid app (React, TanStack Query, Capacitor, Tailwind)
- Maintain shared library of UI components (Turborepo, React, LESS, Storybook)
- Creating PoC’s focused on high performance and low network latency
- Creating business logic for sophisticated systems, mostly in React
- Performing code review and recruiting developers
- Code refactoring and writing unit tests
Web Developer / Co-founder
Gemmy Tech Inc.
08/2023 – 12/2023
- Creating social media app, using Solid.js, React, Remix, Tailwind with Nostr protocol and Solana blockchain
- App migration to React Native with AT Protocol
- Creating and modifying API endpoints using TypeScript and Node.js with Payload CMS
- Designing features, mentoring other developers
- Configuring and customizing AT Protocol’s Personal Data Server
### Senior Front-end Developer
[Brival Sp. Z O.O.](https://www.brival.co/)
07/2019 – 05/2023
- Creating CMS style, web applications (shipping/transport management, tool for managing/connecting virtual services)
- Creating highly efficient REST solutions (multipart upload)
- Creating custom dashboards (for financial services, home maintenance, advertisements), custom chat features
- Creating Progressive Web Apps (voting applications)
- Managing team of developers to accomplish goals in limited time frames
- Mentoring other front-end developers
- Designing UI & UX and creating layout based on it (HTML, CSS, Bootstrap)
- Design and implementation of front-end architecture and code standards
- Creating business logic for sophisticated systems, mostly in React
- Code refactoring and writing unit tests
### Front-end Developer
[i2a Solutions Inc.](https://i2asolutions.com/)
04/2017 – 02/2020
- Creating CMS web applications (NBA teams, museums, zoos), mobile web client for image recognition engine, demo applications (adjusted client website to use specific API, AR samples with A-Frame)
- Extend business login on sever site (Node.js, PARSE, Firebase products)
- Designing UI & UX and creating layout based on it (HTML, CSS, Bootstrap)
- Design and implementation of front-end architecture
- Creating business logic mostly in AngularJS, Angular 2+ and React
- Code refactoring
- Writing unit tests
### Junior JavaScript developer
[Macrologic S.A.](https://assecobs.pl/macrologic/)
04/2016 – 04/2017
- Creating CMS features (ERP system, time management field)
- Debugging, fixing and extending existing application
- Creating business logic using JavaScript (jQuery) and Java EE
- Creating database procedures and queries (Formula+, SQL)
### Intern
Częstochowa University of Technology
09/2015 – 10/2015
- Intern associated with diploma project (creating AI speech recognition Android application)
### Intern
Eland IT
07/2014 – 08/2014
- Azure Active Directory administration and configuration
---
## Education
### Częstochowa University of Technology (Poland)
Field of study: Computer Science
Specialization: Business applications and databases
Degree: Master of Science
03/2016 – 06/2017
### Częstochowa University of Technology (Poland)
Field of study: Computer Science
Specialization: Web applications programming
Degree: Bachelor of Engineering
10/2012 – 02/2016
---
## Foreign languages
- Polish: native
- English: fluent
- Thai: beginner
---
## Technical skills
### Strong knowledge:
- Technologies: Node.js, JavaScript (ES5, ES6+), TypeScript, HTML, CSS, SQL, Git
- JavaScript libraries: React.js, Redux, jQuery, Material UI
- JavaScript frameworks: Next.js
- Tools: Webflow, Postman, Swagger
- Build tools: Webpack, Parcel
### Basic knowledge:
- JavaScript libraries: Firebase, Express.js, Koa, Ant Design, AngularJS, React Native
- JavaScript frameworks: Strapi, Gatsby
- Databases: SQLite, MongoDB, PostgreSQL
### Used to work with:
- AngularJS, Angular 2+, Bootstrap, Jest + Enzyme
- Java SE 8, Java EE, Android SDK, Oracle SQL
---
---
> I hereby agree for processing my personal data, included in my job offer, for the purpose of recruitment (as defined in the Act of August 29, 1997 on the Protection of Personal Data
(Journal of Laws No. 133, item 883).