Ivan Yaremenchuk

Experience

• 

  SoftServe

  Jun 2017 - Jun 2020

  Project: same financial project.Team: ~100 people.I became part of a "core team", implementing main features, researching new technologies, and improving infrastructure.We migrated a monolith to a microservice architecture (split it into 40+ microservices), implemented messaging between them (RabbitMQ), reworked our DB structure (introduced MongoDB to some microservices), optimized bulk performance (by replacing EF with Dapper), and added a service mesh (Istio). The entire project was migrated from .NET Framework to .NET Core. Show less

  • Middle C# Developer

    Aug 2019 - Jun 2020

  • Junior PRO C# Developer

    Oct 2018 - Jul 2019

  • Junior C# Developer

    Oct 2017 - Sept 2018

  • Student In IT Academy

    Jun 2017 - Sept 2017
• 

  Axon

  Jul 2020 - Mar 2021

  Software Engineer

  Project: a backend for a gamification company from Belgium.Team: "one-man" team (I was the only back-end engineer on that project).I was mainly implementing many new HTTP endpoints, using ASP.NET core. The fun part: configuring Geo-Redundancy in Azure and testing performance.Also, I was implementing a "state-of-the-art" authentication service, which strictly followed the RFC.

• 

  SoftServe

  Mar 2021 - Oct 2024

  Project: US-based trust with crypto trading.Team: medium (10-20 people).I developed some features and fixed many bugs, but I mainly do R&D by writing POC (Proof-of-Concept) on how to add new technologies and frameworks to our codebase (like EventStore DB, Temporal durable framework, TigerBeetle DB, etc). Also, I've improved the overall system stability and consistency, by utilizing the "saga" pattern and adding a "message outbox".I regularly do demos and tech talk sessions for my colleagues.As I am the only developer from the team that is inside the US, I also have to resolve all production incidents and do a quick bug fix.The fun part: I rewrote our blockchain transaction tracker from C# to Rust, and that significantly decreased the amount of resources used. Show less

  • Senior C# Developer

    Mar 2023 - Oct 2024

  • Senior C# Developer

    Jan 2022 - Feb 2023

  • Senior C# Developer

    Mar 2021 - Jan 2022
• 

  Confidential

  Oct 2024 - now

  Middle Rust Developer