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Dominik – React, Typescript, Next.js, experts in Lemon.io

Dominik

From Chile (UTC-3)

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Front-end Web DeveloperStrong senior
Back-end Web DeveloperMiddle
18 years of commercial experience
Banking
Design
Fintech
Healthcare
Healthtech
Mental healthcare
Pharmaceutics
Real estate
UI/UX
Content creation and licensing
Lemon.io stats
1
projects done
816
hours worked
Open
to new offers

Dominik – React, Typescript, Next.js

Dominik is a highly skilled Senior front-end engineer with over 17 years of industry experience. He has made a direct impact on numerous projects across diverse sectors, including healthcare, pharmaceuticals, design, fintech, and real estate. With a proven track record in leadership roles, Dominik brings the ideal combination of deep technical expertise and leadership skills, making him a valuable asset to elevating your business.

Dominik was previously tasked with CTO/Tech lead responsibilities on the projects from scratch, allowing him to see the architecture of the projects as well as combine business and engineering mindset.

Main technologies
React
7 years
Typescript
7 years
Next.js
2 years
Node.js
7 years
Additional skills
AWS
Microsoft SQL Server
REST API
Redux
AWS Lambda
Tailwind CSS
MySQL
Amazon S3
Material UI
Figma
JavaScript
Vanilla JS
MongoDB
UI/UX
Ready to start
Immediately
Direct hire
Potentially possible
Ready to get matched with vetted developers fast?
Let’s get started today!

Experience Highlights

Senior Frontend Developer
Nov 2024 - Apr 20255 months
Project Overview

Filmsupply, a brand of FM.co, is a marketplace for short film content.

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Responsibilities:
  • Implemented Google sign-in, raising sign-up from new users by 3x
  • Devised a migration path from legacy architecture to a modern one
Project Tech stack:
React
Typescript
JavaScript
API
React Hooks
Technical Leader
Feb 2024 - Jul 20245 months
Project Overview

The project involved implementing new business flows, streamlining existing ones, reducing technical debt (rewriting in TypeScript, updating legacy dependencies, rearchitecting), and minimizing the impact of unstable external providers on users. The app handled scheduling, access management, agent assignment, and customer feedback for apartment tours.

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Responsibilities:

Dominik was responsible for the following:

  • led the development of a booking app for renting touring apartments;
  • led a team of 4 developers;
  • managed migration from a legacy service hub to a modern middle-tier service architecture;
  • created new frontend and backend architectures;
  • worked with tight deadlines, legacy code inherited from another contractor and incomplete documentation.
Project Tech stack:
React
Node.js
Typescript
Microsoft SQL Server
Redux
REST API
CTO
Sep 2020 - May 20243 years 8 months
Project Overview

The client was a telemedicine startup focused on mental health. It had four web apps, comprising online sales of medicines, issuing prescriptions, scheduling doctor appointments, and online health evaluations, plus a back-office. The solution was on the market for two years and had paying customers.

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Responsibilities:

Among others, Dominik's contributions included:

  • defined the technology stack, physical and business architecture, data model, APIs;
  • implemented and tested the solution;
  • created integrations with payment and electronic signature providers;
  • managed requirements coming from the CEO;
  • managed other developers working on the project;
  • provided technical support.
Project Tech stack:
React
Redux
Node.js
Typescript
AWS Lambda
Amazon S3
Amazon SQS
Amazon SNS
AWS SES
Amazon RDS
API Gateway
AWS CloudFormation
Amazon CloudFront
MySQL
Serverless Computing
RPC
React Query
React Hooks
React Hook Form
Tailwind CSS
Tech Lead
Mar 2023 - Nov 20237 months
Project Overview

This particular project was carried out for a major US-based IT services company, focusing on providing efficient engineering & software solutions to clients of various sizes and domains.

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Responsibilities:

Dominik was tasked with the following responsibilities:

  • implemented a new design system in React (Material UI) components;
  • tested new components against usability, accessibility and responsiveness.
Project Tech stack:
React
Material Design
Material UI
Design system
CSS
Styled-components
Figma
Software Engineer Manager
Jun 2020 - Feb 20218 months
Project Overview

The project was a real-time electronic bank transfer service that enabled seamless, fast, and secure money transfers for individuals and businesses. Targeting both private users and companies, they facilitated instant financial transactions, enhancing convenience and operational efficiency. Its services significantly impacted commerce by providing reliable, real-time payment solutions that streamline banking processes and improve the speed of commerce.

The main goal included:

  • migration away from a 3rd party provider of electronic funds transfers (EFT) to an in-house solution in order to mitigate losses related to race conditions and periodic unavailability of their service, as well as an architecture with built-in contingency solutions.

Daily throughput was about $350.000 USD, serving 2M+ users.

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Responsibilities:

Dominik's impact was done through such tasks:

  • defined business and technical architecture;
  • led the work of 5 developers;
  • eliminated dependency on one external provider;
  • mitigated losses of $50.000 per month, on average.
Project Tech stack:
Typescript
JavaScript
Node.js
Web Sockets

Education

2008
International Relations
Masters

Languages

Spanish
Advanced
Polish
Advanced
English
Advanced

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