Ezra Hutabarat
Ezra Hutabarat

Software & Product Engineer

Open to offers · Member since 22 Oct 2026
Location
Jakarta, Indonesia
Desired salary
Confidential
Work preference
Hybrid / Full Time, Contract
Experience level
Senior

About

Professional summary

I am a Software and Product Engineer with more than five years of experience building enterprise systems, backend services, distributed data-processing workflows, and AI-powered application prototypes.

I specialize in scalable microservices, event-driven architecture, and API development using Go, Node.js, TypeScript, and REST-based services. My work has supported nationwide sales, account-management, and internal enterprise operations.

I have hands-on experience with Apache Kafka, Apache Airflow integrations, MySQL, Redis, and cloud infrastructure on GCP and AWS. I use data pipelines and dashboards to improve operational visibility and enable data-driven decision-making.

I also develop AI and machine-learning solutions with Python, the OpenAI API, deep learning, YOLO, and OpenCV. My experience includes creating LLM application prototypes backed by custom services.

I collaborate closely with engineering leadership and cross-functional stakeholders on feature prioritization, technical decisions, and implem

Notice period: 1 month

Skills

14 capabilities

Tech stack & tools

Working toolkit

Experience

Career history

All Round Product Engineer Smartick Indonesia

Built a transactional data dashboard using MySQL and Looker Studio to improve operational visibility and support data-driven decision-making.

Designed reusable bulk APIs using Go and Node.js to automate administrative workflows for approximately 5,000 users, with execution times of four to five minutes. Collaborated with the Head of Engineering on feature prioritization and technical decisions aligned with product requirements.

Software Engineer BPJS Ketenagakerjaan

Developed and maintained backend and frontend services using Go, PHP, and Vue.js in a regulated enterprise environment.

Focused on scalability, security, and regulatory compliance. Implemented unit tests with PHPUnit and Go testing tools, increasing code coverage from 20% to 30%.

Backend Developer Telkom Indonesia

Designed and maintained backend systems for nationwide sales and account-management operations using Node.js, TypeScript, and Express.js.

Implemented distributed data-processing workflows with Apache Kafka consumers to process 1,000 to 100,000 records generated through Airflow workflows while preserving transaction consistency and data integrity. Improved API response times by up to 30% through Redis caching.

Education

Learning history

Universitas Kristen Maranatha

Bachelor of Electrical Engineering, Electrical Engineering

Completed a final project on deep-learning-based traffic violation detection using Python, YOLO, and OpenCV.

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