DAC.digital logo

DAC.digital

Karol logo

Karol

Available in 2 weeks

Fullstack Developers @ DAC.digital

Mid-level
Seniority
GMT+02:00, Gdańsk, Poland
Location & Timezone
$50 - $70/hr
Average Hourly Rate
English
Languages

Top skills

Ruby on Rails
TypeScript
React.js
React Native
Next.js
Ionic

About

Seasoned Full Stack Developer with 5 years experience. Possessing a meticulous approach to organization and a commitment to optimizing both form and function, I prioritize the development of sleek, intuitive, and high-performance applications.

Top skills

Verified by Pangea.ai due diligence

Top SkillsCurrent UsageSeniority
Ruby on Rails
60%4 years
TypeScript
5%5 years
React.js
5%4 years
React Native
10%3 years
Next.js
10%3 years
Ionic
10%2 years

All skills

Roles and tools, to bring ideas to life and create meaningful experiences

E-Commerce
Enterprise Software
CMS
Fleet Management
IoT & Smart Devices
PaaS

Professional experience

Explore a curated selection of projects highlighting Karol's expertise and experience. Each project aims to showcase challenges, solutions, and the final outcome, along with the tools and technologies used.

Under MNDA
Auctioning Platform development — Backend Developer
Developed an integrated auction platform for TB Auctions, unifying systems from multiple acquired e-commerce firms. Enhanced UX, maintained live system, and added new features per business needs.
E-Commerce
Enterprise Software
Ruby on Rails
React
Bootstrap
+6

Under MNDA
Muumap platform development — Backend Developer
Co-developed Muumap, a digital system to streamline traditional dairy practices. As a backend developer collaborated with client to enhance milk delivery and procurement processes.
CMS
E-Commerce
Enterprise Software
Fleet Management
IoT & Smart Devices
+15

Preferred tools

View the preferred tools and apps used by Karol to assess compatibility and alignment.

Asana
Asana
Azure
Azure
Bitbucket
Bitbucket
Confluence
Confluence
Dropbox
Dropbox
Discord
Discord
G Suite
G Suite
Git
Git
Github
Github
Gitlab
Gitlab
Jira
Jira
Oracle PL/SQL
Oracle PL/SQL
PHP Storm
PHP Storm
Skype
Skype

Career highlights

Discover Karol’s professional journey, including employment history, certifications, and educational background.

Senior Backend Engineer
DAC.Digital2023-2023
Having conducted a comprehensive audit of the current solution, I delved deep into analyzing existing functionalities to craft an actionable improvement plan. My expertise not only facilitated the design and development of novel functions but also fostered a collaborative environment. Working hand in hand with the Product Owner, CTO, and the backend team, we ensured a synergized approach to our solution enhancement endeavors.
Fullstack Developer
PvP.com2021-2023
- Developed a new Nest.js backend with GraphQL microservices to replace existing Rails API - Built a new Next.js web app from scratch, incorporating features present in the mobile app to ensure feature parity - Developed and added several features to the React Native app, such as a user endorsement system, communities and a new messaging system - Created AppCenter & fastlane pipelines to automate the deployment process of the mobile application - Wrote unit & e2e tests for both backend and frontend - Experience with debugging and troubleshooting production React Native applications (Sentry.io)
Frontend Developer
PvP.com2020-2021
- Developed the frontend layer of React Native & Next.js applications - Operated within a rapidly evolving startup atmosphere while consistently delivering code within challenging project timelines - Experience identifying and resolving React performance bottlenecks, optimizing applications for rerenders and correct usage of data fetching paradigms - Worked in the Scrum methodology: Sprints, Demo, Retrospective, collaboration with the Project Owner and other Stakeholders. - Utilized tools: JIRA, Confluence, Figma, Github.
Fullstack Developer
Grupa Wisko2020-2020
- Implemented several features on both frontend (Next.js) & backend (RailsAPI), such as messaging system, user's online statuses, third party authentication with different providers (Facebook, Google) - Utilized responsive web design techniques to ensure web app works smoothly across different devices and browsers
Frontend Developer
Synergee2019-2020
I have worked on the development of a React Native application calledInspotle that included various features such as enabling users to create esports events in their location, create teams, and other social media features. - Prepared initial frontend application structure, implemented typography, localization and reusable React components - Wrote unit & e2e tests using Cypress and Testing Library - Implemented bug-tracking tools (Sentry.io)

Testimonials

Anonymous

Head of Growth, DAC.digital

Verified Testimonial

It has been a genuine pleasure working with Karol. Their ability to thoroughly analyze solutions and subsequently drive impactful improvements is truly commendable. What sets them apart is not just their technical prowess but also their collaborative spirit.

Similar talent

Slide 1 of 0