Adam Grzybowski

One Man Army

Currently

Working as Senior Software Engineer at Code&Pepper

Specialized in

Ruby/Ruby on Rails, Python, TypeScript

Backend Skills

PyTorch, Django, Node.js, Elixir, Phoenix, JSON API, GraphQL

Frontend Skills

Vue.js, React, React Native

DevOps Skills

Nginx, SSL/TLS/Certificates, AWS/Google Cloud/Heroku, Kubernetes, deep Linux knowledge, Networking, Postgresql, Mysql

Experience

Apr 2022 - Present

Code&Pepper

• Senior Software Engineer

Projects

FinTech platform

Established provider of currency trading solutions, which accelerate global access to frontier markets through an innovative infrastructure.

Tech Stack: Ruby, Ruby on Rails, TypeScript, Node.js

Challenges:

• Integrating services with Banks and financial institutions
• Spinning up microservices (in Ruby and Node) used by main API
• Securing weak security spots (working with hackerone findings)
• Resolving issues and improving setup script of 30+ services

Aug 2018 - Mar 2022

Ragnarson

• One Man Army
• Software Engineer
• Team Leader
• Business Analyst in pre-sales

Projects

In-house internships for juniors

Challenges:

• Remote teaching and mentoring people that are on the start of their career
• Supporting creation of best practices and avoidance of bad habits
• Restructurization of my actual knowledge, in-depth update, especially in details

Recruitment platform

Tech Stack: Ruby, Ruby on Rails, Postgresql, Heroku, ElasticSearch, Salesforce

Challenges:

• Fixing issues with Salesforce platform
• Updating fundamental frameworks to make place for new developers
• Building bigger team
• Migration from old VPS to AWS cloud

Tariffs comparison portal

Challenges:

Tech Stack: Ruby, Ruby on Rails, TypeScript, Node.js, Express.js, Postgresql, React Native, ElasticSearch, GraphQL

As Developer:

• Building a service to handle the upload of high volume of files
• Designing new backend application to microservices structure
• Working closely with Mobile developers to integrate mobile app with backends
• Migration of app and database from Heroku to AWS Cloud
• Maintaining legacy code, that was built around 2013
• Integration with Salesforce

As Team Leader:

• Leading the team to help them provide business value to the customer and his product
• Helping client-side management to improve our processes and planning
• Liaising between Ragnarson and the onsite team
• Onboarding React Native mobile developers

Mentorship platform

Tech Stack: Ruby, Ruby on Rails, Postgresql, Heroku, ElasticSearch, Stripe, Vue.js

Challenges:

• Preparing the platform for video/audio processing
• 2-way integration with Google Calendar
• Implementation of paywall for subscription-based model using Stripe
• Improving usability of actual calendar date picker with timezones
• Being a part of design process of app, also assisting with business priorities and new features planning

Recruitment platform

Tech Stack: Ruby, Ruby on Rails, Postgresql, Heroku, ElasticSearch, Salesforce

Challenges:

• Implementation of loyalty program
• Excel’s file parser for monthly data uploads
• Implementation of mass mailer for sending marketing offers
• Live email templates, with dynamically inserted values

Freelance project

Platform that collected data from an open city CCTV system using an AI video processing.

Tech Stack: Python, pytorch, flask

Challenges:

• Processing and converting intake video from CCTV cameras
• Using AI (pytorch) to detect and label cars
• Collecting data from processed video in a database

Rivlan

Tech stack: Node.js, Ruby on Rails

Challenges:

• Using RTMP/HLS protocols to live streaming video on top of FFMPEG
• Building a Vue.js SPA frontend application
• Secure JSON API based on tokens for authentication
• Real Time chat with notifications

Interests

cybersecurity, books, human psychology, basketball, and lot of more ;)

* A one-man army, a heavily armed and well-trained combatant able to face numerous enemies alone