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I'm a developer who specializes in... from... Give an introduction about yourself, who are you, what are your most important skills and what differentiates you from other devs. This is the first thing clients will see. They are often interested in sector experience and knowledge, so please mention it. --- Employment and project experience Senior Developer Salesforce Inc. _January 2017 - March 2017_ Full-stack Developer Microsoft Inc. _January 2019 - March 2019_…I'm a developer who specializes in... from... Give an introduction about yourself, who are you, what are your most important skills and what differentiates you from other devs. This is the first thing clients will see. They are often interested in sector experience and knowledge, so please mention it. --- Employment and project experience Senior Developer Salesforce Inc. _January 2017 - March 2017_ Full-stack Developer Microsoft Inc. _January 2019 - March 2019_

Irving Cristopher Ramirez Magañas

Back-End Developer, Full Stack Developer, Front-End Developer, +2

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I'm a developer who specializes in... from... Give an introduction about yourself, who are you, what are your most important skills and what differentiates you from other devs. This is the first thing clients will see. They are often interested in sector experience and knowledge, so please mention it. --- Employment and project experience Senior Developer Salesforce Inc. _January 2017 - March 2017_ Full-stack Developer Microsoft Inc. _January 2019 - March 2019_…I'm a developer who specializes in... from... Give an introduction about yourself, who are you, what are your most important skills and what differentiates you from other devs. This is the first thing clients will see. They are often interested in sector experience and knowledge, so please mention it. --- Employment and project experience Senior Developer Salesforce Inc. _January 2017 - March 2017_ Full-stack Developer Microsoft Inc. _January 2019 - March 2019_

Available to hire

Seoul, South Korea

I’m a developer who specializes in… from…

Give an introduction about yourself, who are you, what are your most important skills and what differentiates you from other devs. This is the first thing clients will see. They are often interested in sector experience and knowledge, so please mention it.

Employment and project experience

Senior Developer Salesforce Inc.
January 2017 - March 2017

Full-stack Developer Microsoft Inc.
January 2019 - March 2019

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Beginner

Beginner

Beginner

Beginner

Beginner

Language

English

Advanced

Korean

Beginner

Work Experience

Backend Engineer — Identity & API Integrations (Contract) at Pact Technologies

September 1, 2025 - February 1, 2026

Identity automation platform enabling organizations to automate access workflows across third-party SaaS providers; implemented secure API integrations with OAuth and SSO providers; delivered API-driven identity tooling with robust automation and minimal incidents; migrated key services to a clean DDD-based design to improve maintainability and extensibility.

Full-Stack Engineer — Real-Time & Reporting Platform (Contract) at Degatech Systems

February 1, 2022 - September 1, 2025

Aviation fuel marketplace and operational platform supporting real-time flight tracking and airport operations; improved overall system performance by ~50% through SQL query optimizations and strategic caching; implemented Redis-based state synchronization; redesigned backend using a hybrid DDD architecture and delivered the map feature end-to-end with external map provider integration; upgraded Angular from 11 to 16+ and modernized UI components.

Senior Backend Engineer — Reliability & Processing Platform at VIQ Solutions

November 1, 2020 - February 1, 2022

Speech-to-recognition post-processing platform used across multiple industries; resolved production crashes caused by incorrect dependencies; refactored large legacy modules into stable, modular components; proposed service separation using Azure Functions to improve scalability and reliability; led secure API work across platforms.

Frontend & Internal Tools Developer at Luxoft

February 1, 2019 - October 1, 2020

Built a Progressive Web App used by ~500 employees for parking reservation management with interactive map-based scheduling; aided frontend migration to modern frameworks; introduced automated testing practices and diagnosed defects in undocumented legacy codebases.

Backend Developer — REST APIs for internal enterprise platforms and IoT service integrations at Robert Bosch

June 1, 2016 - February 1, 2019

Developed REST APIs supporting internal enterprise platforms and IoT service integrations; migrated modules from .NET Framework to .NET Core; applied repository pattern, DTO mapping, Swagger documentation, and unit tests.