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Professional Experience Catalog

A timeline built for fast trust.

A workbook-backed view of hands-on roles across AI model evaluation, banking analytics, enterprise software, data automation, infrastructure support, and dashboard engineering.

agentic AI benchmark developmentAI code and reasoning evaluationRLHF and human preference reviewbanking analytics platformscredit-card ETL automationbilling reconciliation systemsmission-critical banking applicationsairport operations toolinge-commerce dashboard development

Alignerr

Freelance / Remote (Indonesia)
Current

AI Data Labeling & Code Expert

Sep 2025 - Present

01

Worked on AI model improvement projects involving data labeling, prompt optimization, and automation of dataset workflows. Contributed to stronger model accuracy through high-quality data preparation and prompt testing.

  • Reviewed and labeled AI-generated code outputs against task requirements.
  • Evaluated code functionality, logic, completeness, and test-case behavior across programming tasks.
  • Maintained labeling accuracy and consistency through careful analysis and project guideline adherence.
  • Provided feedback on common error patterns in AI code generation.
  • Identified ambiguous instructions, edge cases, and mislabeled examples to improve datasets.
  • Helped refine prompt structures for better model understanding of programming tasks.

EBIT

Freelance / Remote (Indonesia)
Current

AI Trainer Developer

Feb 2026 - Present

02

Contribute to training and evaluating large language models by solving programming tasks, reviewing AI-generated code, developing test cases, and designing benchmark tasks for agentic software engineering evaluation.

  • Evaluated AI-generated code for correctness, efficiency, readability, and adherence to task requirements.
  • Solved algorithmic and software engineering problems across multiple programming languages.
  • Developed comprehensive test cases to validate functionality, edge cases, and code robustness.
  • Provided clear technical explanations and human-readable rationales for evaluation decisions.
  • Identified logical errors, performance issues, and opportunities to improve AI-generated solutions.
  • Collaborated on annotation and evaluation workflows to enhance LLM coding performance and reliability.
  • Designed reproducible benchmark tasks, validation pipelines, and scoring workflows for agentic AI software engineering evaluations.

G2i Inc.

Freelance / Remote (Indonesia)
Current

AI Data Labeling & Prompt Engineer

Sep 2026 - Present

03

AI model improvement role focused on data labeling, prompt optimization, generated-code review, and dataset workflow quality.

  • Reviewed and labeled AI-generated code outputs against task requirements.
  • Evaluated logic, functionality, completeness, and test results across programming workflows.
  • Maintained consistent labeling quality through guideline-driven review.
  • Contributed prompt and dataset feedback to improve model accuracy.
  • Identified edge cases and ambiguous instructions in AI coding tasks.

Outlier

Freelance / Remote (Indonesia)
Completed

AI Coding Evaluator & RLHF Contributor

Mar 2026 - May 2026

04

Contributed to LLM training and evaluation projects focused on coding, reasoning, RLHF-style review, response ranking, prompt refinement, and agentic AI validation.

  • Evaluated and ranked AI-generated coding responses for correctness, logic, efficiency, and instruction following.
  • Reviewed outputs across Python, JavaScript, PHP, Java, and Golang.
  • Performed response validation, bug identification, and edge-case analysis to improve model reliability.
  • Contributed to Claude AI training and OpenClaw evaluation workflows.
  • Verified test cases and dataset consistency for model training quality.
  • Worked on agentic AI and function-calling evaluation tasks with emphasis on workflow accuracy.

PT. Bank Negara Indonesia (Persero) Tbk.

Contract / BNI Tower, Central Jakarta
Completed

Software Engineer & Data Engineer, Card Business Division

Sep 2022 - Nov 2025

05

Developed, maintained, and refactored web applications for credit-card transaction analytics and portfolio management, supporting data-driven decisions across banking operations.

  • Built full-stack application logic and APIs using PHP, Laravel, and JavaScript.
  • Optimized MS SQL Server operations with PL/SQL stored procedures and SQL Server Agent jobs.
  • Automated ETL workflows with Python and Go for large reporting datasets.
  • Used Redis for caching and temporary data storage to improve application performance.
  • Translated complex business requirements with data teams into scalable software solutions.
+4

PT. Bank Negara Indonesia (Persero) Tbk.

Contract / BNI Tower, Central Jakarta
Completed

Software Engineer, Application Development Division

Jan 2022 - Aug 2022

06

Maintained and improved ICONS, a mission-critical centralized online banking system used by BNI branches in Indonesia, Tokyo, Singapore, and Hong Kong.

  • Maintained and enhanced system modules for evolving business needs across multiple regions.
  • Resolved critical bugs and performance issues to keep banking services stable.
  • Collaborated with internal teams and international stakeholders on features, usability, and compliance.
  • Conducted routine system updates and QA testing to reduce deployment disruption.
  • Managed Oracle and PL/SQL database queries and data handling operations.

PT. Mitra Integrasi Informatika

Contract / APL Tower, West Jakarta
Completed

Software Engineer

Sep 2021 - Nov 2025

07

Collaborated with PT. Bank Negara Indonesia to design, develop, optimize, and integrate internal applications for business, marketing, and financial workflows.

  • Developed and maintained backend and frontend services for data processing and reporting workflows.
  • Implemented data-driven features that delivered marketing and financial analysis insights.
  • Refactored and optimized legacy code for performance, scalability, and maintainability.
  • Worked in cross-functional teams to deliver high-quality releases under tight timelines.

PT Angkasa Pura 1 (Persero)

Internship / El Tari Airport Kupang, NTT
Completed

IT Support Technician

Jan 2021 - Apr 2021

08

Supported server and network administration for airport infrastructure, then initiated a web application to digitize prohibited and lost item tracking.

  • Monitored server health, network connectivity, and hardware performance across airport services.
  • Diagnosed server, network, and configuration issues to reduce operational disruption.
  • Maintained access control, firewall rules, and system security policies.
  • Built real-time logging for confiscated and lost property incidents.
  • Replaced paper-based records with a searchable digital database.
  • Improved coordination between security, operations, and lost-and-found teams.

PT Compro Kotak Inovasi

Internship / Duta Merlin, Central Jakarta
Completed

Full-stack Developer

Sep 2020 - Dec 2020

09

Developed a web-based admin dashboard for an e-commerce platform, covering sales tracking, inventory management, customer analytics, reporting, and secure administration.

  • Built RESTful APIs for real-time dashboard data including sales graphs, order statistics, and inventory levels.
  • Implemented KPI visualization and analytics features in user-friendly tables and charts.
  • Designed authentication and role-based access control for sensitive administrative features.
  • Optimized SQL queries and cached frequent API responses to improve load times.
  • Collaborated with UI/UX designers to deliver responsive web experiences.
+1
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