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Location

Poland

Rate

$50  / per hour

Years of experience

11+

About

I am a seasoned software engineer with extensive professional experience in software development, particularly in web development within the finance sector. Throughout my career, I have worked for a diverse range of companies, from early-stage startups to large corporations like BNP Paribas and Pfizer. My primary programming language is C#, but I am continually expanding my knowledge to include TypeScript. I am also an active open-source contributor, delivering high-quality software to the community. My technical expertise encompasses a wide array of technologies, including .NET Core, ASP.NET, Xamarin, Node.js, React, Angular, Docker, Terraform, AWS, and Azure DevOps. Currently, I am a Senior .NET Developer at C&F S.A., where I am involved in developing microservice backend applications and frontend solutions to optimize production processes for Pfizer. In my previous role at ITMAGINATION, I architected and developed Azure-hosted SaaS applications, algorithmic trading systems, and Know Your Customer microservices for BNP Paribas. I have a strong background in creating secure and efficient software solutions, with experience in both frontend and backend development. My open-source projects include a Web 3.0 portfolio rebalancing tool and a Node.js library for building reactive algorithmic trading strategies. I am proficient in English and Polish and hold a deep commitment to advancing my skills and contributing to the field of software development.

Tech Stack

.NET, ASP.NET, C#, Node.js, React

Experience

  • Microservice Backend Development: Developed and maintained microservice backend applications in C# to coordinate and manage business units' operations, specifically for Pfizer.
  • Frontend Application Development: Developed frontend applications in Angular and TypeScript to visualize and optimize production processes and other business needs, including client scoring and identity verification systems.
  • Cloud Infrastructure and DevOps: Architected and managed Azure-hosted applications, created and managed build pipelines, and implemented Infrastructure as Code (IaC) using Terraform, Azure DevOps, and AWS.
  • Algorithmic Trading Systems: Architected and developed algorithmic trading applications for cryptocurrency markets, integrating Python into .NET applications, and designing market-neutral strategies.
  • Secure Messaging and Encryption: Developed a secure messaging mobile application using Kotlin, implementing end-to-end encryption and a communication protocol built on the Bitcoin blockchain.
  • Open Source Contributions: Created and maintained open-source projects, such as a Node.js library for building reactive algorithmic trading strategies and a Web 3.0 portfolio rebalancing tool using React and Next.js.

Employment history

.NET SENIOR DEVELOPER, C&F S.A. (remote) December 2021 - present

– Took a part in the development of microservice backend application in C# to coordinate and manage a work of all business units in Pfizer;
– Developed a frontend application in Angular and TypeScript to visualize and optimize a production of components in Pfizer;

.NET SENIOR DEVELOPER, TMAGINATION sp. z o.o. , (remote) March 2018 - December 2021

– Architected and developed an Azure-hosted SaaS client scoring application in C#; developed frontend application in Angular and TypeScript; created and managed build pipelines and IAC in Terraform;
– Architected and developed an algorithmic trading application for cryptocurrency markets in C#; integrated Python language into .NET web application; designed and developed market neutral strategies; worked closely with data scientists to improve performance of existing strategies; automated testing and deployment in Azure DevOps and AWS;
– Developed Know Your Customer microservice application for BNP Paribas in C# which automates verifying the identity of clients and assessing potential risks of illegal intentions for the business relationship; developed frontend application in Angular and TypeScript; worked closely with business analysts and scrum master to meet requirements;

.NET SENIOR DEVELOPER, pepperoni.finance January 2022 - present

– Created a Web 3.0 project to rebalance in easy way a portfolio of assets in Ethereum blockchain; the project is based on Uni swap protocol and a design of application is highly inspired by Uni swap App; the project is currently in development phase and is not yet ready for use; the solution is powered byNext.js, React and is hosted on Vercel;

.NET SENIOR DEVELOPER, quantform.io May 2017 - present

– Created an open-source Node.js library for building reactive algorithmic trading strategies for cryptocurrencies based on RxJS in TypeScript;designed a declarative uni form interface for centralized and decentralized exchanges; created a web tool to trace and visualize strategy execution in React and Next.js; built a command-line interface automate development and manage execution; created a documentation and landing page for project;

.NET/C++ SENIOR DEVELOPER, OrderGroup sp. z o.o. , Poland, Warsaw October 2016 - March 2018

– Architected and developed a mobile application for iOS and Windows that serves a navigation aid for both helicopter and aircraft pilots during all kinds of flight operations in C#; worked with clients to provide the best solutions and validate requirements; optimized memory and CPU/GPU performance to improve device stability and battery life; adopted and extended Tangram-ES map rendering library in C++;
– Developed application in C# that manages and synchronizes user receipts for SKANSKA; implemented receipt OCR data recognition; developed user interface based on provided mockups;

.NET DEVELOPER, startup January 2016 - February 2017

– Developed first-class secure messaging mobile application in Kotlin;designed and created a communication protocol built on top of Bitcoin blockchain; implemented end-to-end data encryption; developed hierarchical deterministic Bitcoin wallet;

.NET REGULAR DEVELOPER, Freelance , Poland, Warsaw February 2015 - October 2016

– Built Android client for online distribution marketplace in Kotlin/Java; designed and developed user interface based on desktop mockups;
– Designed and developed mobile advertise application in Kotlin and Swift to promote company leading project;

.NET REGULAR DEVELOPER, Fuero Gamessp. z o.o. , Poland, Warsaw May 2014 - February 2015

– Developed cross-platform MMO strategy game for iOS, Android, and Facebook in C#; worked closely with backend team to meet requirements; optimized network performance based on prediction and request batching; implemented number of external payment providers like Xsolla, Google Play and App Store;
– Developed a PoC of multiplayer third-person desktop shooter in C# for a War gaming; developed network synchronization and replication components;

.NET/C++ DEVELOPER, Nitreal , Poland, Warsaw April 2013 - May 2014

– Developed game converter to convert games from Torque Engine intoUnity3D in C#; ported a series of time management strategy games from PC to mobile;
– Took a part in the development of VR application for large-area stores;developed a heatmap system to track client eyes in C++;
– Created game framework in JavaScript and HTML5 (Canvas); developedover20 simple educational games based on this framework;

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