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Calvin J.

Calvin J.

AI/ML&Software Engineer (Model evaluation and RL/policy experimentation)

Indonesia flagDepok, Indonesia

Key Skills

Software

Don't disclose

Top Subject Matter

Machine learning model evaluation
forecasting and reinforcement learning
Teaching and mentoring for software security and discrete mathematics (instructional training)

Top Data Types

TextText

Top Task Types

Computer Programming/CodingComputer Programming/Coding
Prompt + Response Writing (SFT)Prompt + Response Writing (SFT)
Text GenerationText Generation
Fine-tuningFine-tuning
RLHFRLHF
ClassificationClassification

Freelancer Overview

AI/ML&Software Engineer (Model evaluation and RL/policy experimentation). Brings 3+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Don't disclose. Education includes Bachelor of Computer Science, Universitas Indonesia (2027). AI-training focus includes data types such as Computer Code and Programming and labeling workflows including Evaluation, Rating, and Computer Programming.

Labeling Experience

AI/ML&Software Engineer (Model evaluation and RL/policy experimentation)

Don't disclose

Built and ran systematic model evaluation workflows for forecasting and reinforcement learning experiments, comparing multiple neural architectures and training policies. Defined validation metrics (e.g., RMSE) and success rates, then performed ablation-style investigations to understand contributors to performance. Used experimental results to guide model/policy selection and iteration across repeated runs. • Benchmarked GRU/LSTM/TCN forecasting architectures with validation RMSE reporting • Evaluated reinforcement learning policies (PPO) using task-success metrics against baselines • Conducted systematic comparison and ablation studies to quantify design impacts • Logged and validated outcomes to support model selection decisions

2026 - 2026

Teaching Assistant / Coordinator of Teaching Assistant

Don't disclose

Coordinated teaching assistant responsibilities that included supporting students with software-security concepts and practices. Delivered lab session support and mentoring that functioned as an AI/ML-adjacent training activity by guiding structured problem solving and evaluation of student work. Managed tutorial coordination, grading, and student support activities to improve learning outcomes. • Assisted course delivery and lab sessions for student guidance • Mentored students on security concepts and practical application • Coordinated tutorials, grading, and student support logistics • Strengthened communication of mathematical reasoning for learners

2025 - 2026

Programming Fundamentals Mentor (Teaching and instructional exercise development)

Don't disclose

Mentored beginner learners in programming fundamentals, problem solving, and logical thinking while developing instructional materials and exercises. Structured learning content to help trainees practice algorithmic reasoning through guided tasks and practice problems. Focused on training and evaluation of learner progress using tailored programming exercises. • Provided mentorship for programming fundamentals and logical thinking • Developed instructional materials, exercises, and learning tasks • Guided problem solving approaches for beginners • Supported trainees through practice and iterative learning

2024 - 2024

Education

U

Universitas Indonesia

Bachelor of Computer Science, Computer Science

Bachelor of Computer Science
2023 - 2027

Work History

K

Kripto UI

Blockchain Team Member

Depok
2026 - Present
U

Universitas Indonesia

Teaching Assistant (Software Security)

Depok
2026 - 2026