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Isabelle Tjahja

@isabelletjahja

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Software engineer focused on backend systems, API quality, and scalable feature delivery.

United States

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What I'm looking for

I seek a role delivering backend services and APIs at a company with strong engineering practices, collaborative teams, and opportunities to mentor and improve developer workflows.

I am a software engineer with hands-on experience improving engineering quality and delivering scalable features across backend and frontend stacks.

At IntelliEvent I led large-scale R&D standardization efforts, established consistent coding practices, and strengthened APIs through testing and documentation. I also optimized development workflows using GitHub Copilot and DevOps practices to accelerate unit test creation and reduce cycle time.

Previously I worked as a Junior Developer focusing on backend development with Java and Spring, building API functionality and sharpening OOP and problem-solving skills. I have maintained system stability across SQL Management, C# API services, and ReactJS/CSS UI components, resolving bugs and refining feature behavior.

I enjoy mentoring and team leadership, demonstrated as an Assistant Director mentoring aspiring programmers and driving collaborative improvement. I seek roles where I can continue improving engineering practices, deliver maintainable solutions, and grow technically.

Experience

Work history, roles, and key accomplishments

Software Engineer

IntelliEvent

Jul 2024 - Nov 2025 (1 year 4 months)

Led large-scale R&D standardization to improve engineering quality, strengthened APIs through testing and documentation, and delivered mid-sized features via PSA-driven internal projects while maintaining system stability across C#, SQL, and ReactJS components.

C++ReactJS SQL API Design Testing DevOps Frontend Development

Junior Developer

HTD Talent

Mar 2023 - Apr 2024 (1 year 1 month)

Focused on backend development managing API functionality, applied OOP principles, and built Java/Spring expertise while using IntelliJ for development and testing.

Java Spring OOP APIs IntelliJ Backend Development Unit Testing

Assistant Director

Code Ninjas

Sep 2023 - Mar 2024 (6 months)

Led team sessions to improve performance and mentored students through a structured curriculum teaching JavaScript, C++, and Lua to progressively advance their programming skills.

Team Leadership Mentoring JavaScript C++Lua

Education

Degrees, certifications, and relevant coursework

California Baptist University

Bachelor of Science, Actuarial Science

Completed a Bachelor of Science in Actuarial Science with a minor in Computer Science, combining quantitative risk modeling coursework with foundational computer science studies.