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Piotr – Golang, React, Next.js, experts in Lemon.io

Piotr

From Poland (UTC+2)

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Full-stack Web DeveloperMiddle-to-senior
Hire developer
10 years of commercial experience
AI
Banking
Communications
Data analytics
Food and beverages
Fundraising
Gamedev
Media
Social media
Venture capital
Private equity
Lemon.io stats
3
projects done
659
hours worked
Open
to new offers

Piotr – Golang, React, Next.js

Piotr is a proactive Middle-to-Senior developer with over 8 years of experience in such technologies as Golang, React, Next.js, Flutter. He is passionate about self-development within dynamic start-up environments and is focused on the quality end result. His biggest strength - Go, he's been developing with it since 2015 and acquired extensive knowledge in everything related to this technology - architecture, microservices, system components, testing, and covering all the required databases.

Main technologies
Golang
6 years
React
3 years
Additional skills
Next.js
PostgreSQL
Docker
Flutter
MongoDB
GitHub Actions
ElasticSearch
Jenkins
Redis
Firebase
Firestore
FFmpeg
SQLite
AWS
Typescript
Git
Linux
Ubuntu
Ready to start
ASAP
Direct hire
Potentially possible

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Experience Highlights

Senior Specialist / Expert (NLP/AI)
Nov 2021 - Ongoing3 years 2 months
Project Overview

Research project for detecting fake news.

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Responsibilities:

Piotr consulted on the architecture of data models and potential deployment issues.

Project Tech stack:
PyTorch
NLP
Deep Learning
Machine learning
Fast AI
Senior Back-End Engineer
Feb 2022 - Apr 20222 months
Project Overview

It is a company that enables easy investing in early-stage companies.

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Responsibilities:
  • improved reliability by writing unit and integration tests for back-end
  • implemented new features like invitations
  • took part in the migration of front-end to the new version
Project Tech stack:
Golang
React
PostgreSQL
Docker
React Native
Senior Back-End / Full-Stack Engineer
Jan 2022 - Feb 20221 month
Project Overview

It is a new American bank for innovators.

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Responsibilities:
  • built MVP of the back-end and employee dashboard from scratch
  • wrote Go back-end using best practices, that were extendable and well-architected for future grow
  • wrote user management/authorization and authentication logic for banking services
Project Tech stack:
React
REST API
PostgreSQL
Kubernetes
Docker
PostgreSQL
Golang
Lead Developer / Software Architect
Jan 2019 - May 20212 years 4 months
Project Overview

The platform allows to easily filter, search and share interesting news articles with friends.

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Responsibilities:
  • built the app architecture and designed system components
  • implemented page scrapers
  • wrote CRUD back-end with an authentication system
  • developed mobile application.
Project Tech stack:
REST API
Golang
PostgreSQL
Next.js
Flutter
Docker
Redis
AWS
Lead Developer / Software Architect
Jan 2021 - Mar 20212 months
Project Overview

The product for game development studio with the ability to easily update information about employees, games, and internal tools related to game development and its packaging.

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Responsibilities:
  • built the product from the grounds up
  • settled up workflows for game packaging needs
  • wrote Next.js application based on provided designs
Project Tech stack:
Golang
Next.js
Docker
SQLite
Lead Developer / Software Architect
Sep 2020 - Jan 20214 months
Project Overview

The product consisted of two main parts: a client-facing news portal, an internal management tool for communication between reporters, sharing audio clips (including proprietary formats that are converted into mp3s), task management, etc.

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Responsibilities:

Accomplishments:

  • designed whole architecture for news site, with internal administrative tools
  • built the entirety of the back-end
  • built reusable specialized React components with radio live streaming, charts, etc.

Routine responsibilities:

  • deployed updated versions of the Webapp, added functionalities as requested by the client
Project Tech stack:
Golang
Next.js
Docker
Ghost
GitHub
PostgreSQL
Lead Developer
Nov 2019 - Mar 20204 months
Project Overview

The big media company had a need to migrate its data from legacy IBM Mainframes to contemporary Linux servers. The client needed a reliable tool that would help validate the correctness of migrated data.

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Responsibilities:

Piotr was responsible for creating Go only app with a simple HTML front-end for the client's employees. He also created ETL workflows to allow migration of the data between databases and created a wide range of unit, integration and end-to-end test to ensure correctness of migrated data.

Project Tech stack:
Golang
PostgreSQL
IBM DB
2
Back-End Developer
Jun 2018 - Sep 20183 months
Project Overview

It is a place for vegans to find restaurants, places, products, and companies that stick to vegan principles. It is mainly a social network site. The public could search for vegan-friendly entities and products while connecting with each other.

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Responsibilities:

Piotr created and extended already existing CRUD application with authentication and authorization system for social sharing of vegan restaurants, products and vegan-friendly products.

Project Tech stack:
Golang
Firebase
Firestore
Firebase Auth
Docker
Back-End Developer
Sep 2015 - Jun 20182 years 9 months
Project Overview

The project allows harvesting metadata, analyzing content and searching in big datasets like e.g. Movie Studios have. The client can connect their datastore (either on-premises or in the cloud), while the product harvest all possible metadata - technical and content-based. It allows the client to easily search for suitable files and data. The engine also consists of a deduplication tool.

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Responsibilities:

Piotr's responsibilities included (but were not restricted to) writing microservices-based harvesters for various file types and databases (including proprietary ones like SAMMA), creating connectors to cloud storage services, maintaining and writing unit and integration tests.

Project Tech stack:
Golang
PostgreSQL
ElasticSearch
Docker
Jenkins
Hashicorp Nomad
FFmpeg

Languages

English
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