heritsam
Software Engineer | Ai Engineer
I build products that turn user pain points into real user experiences. Starting from a vocational high school in software engineering, I’ve grown through mobile, full-stack, and data science work, learning how data, backend logic, and interface design fit together. I’ve deployed Python and FastAPI APIs, integrated models through LangChain and OpenAI, and delivered production apps with React, Next.js, and AWS. My focus is on building intelligent, reliable systems that connect ML models to scalable applications. I succeed in lean, collaborative teams where clear impact and fast iteration matter most.
Experience: 2 years
Yearly salary: $42,000
Hourly rate: $20
Nationality: 🇮🇩 Indonesia
Residency: 🇮🇩 Indonesia
Experience
Data Scientist Intern
Braincore (PT Algonacci Sobat Nusantara) 2024 - 2024
Designed and deployed an ETL pipeline migrating 100K+ HR records from MySQL to DuckDB (via MotherDuck), cutting query latency by 40%. Built Tableau dashboards for Jakarta MRT operations, defining KPIs that improved real-time decision-making for 30+ stations. Strengthened understanding of data pipelines and model-to-API deployment, forming the foundation for AI-integrated backend development.
Laboratory Assistant
Informatics Laboratory 2024 - 2025
Led programming labs in Go, Java, C++, Python, and Flutter, supporting 1,000+ students across core computing courses. Collaborated with lecturers to automate assessments and improve code reliability using modular design and debugging patterns. Conducted workshops focused on problem-solving and clean code, raising completion rates by 22% through structured peer-coding sessions. Applied full-stack skills to build and maintain internal teaching tools, optimizing backend logic and frontend usability for learning dashboards.
Mobile Developer
PT Wan Teknologi Internasional 2020 - 2021
Developed and maintained 3+ production apps using Flutter and React Native, collaborating with backend engineers to integrate RESTful APIs and improve system consistency. Supported full-stack delivery cycles using Laravel APIs, React.js components, and mobile SDK integrations, reducing feature turnaround by 30%. Practiced agile delivery with Jira, ensuring alignment between frontend, backend, and stakeholder requirements across sprints.
Skills
ai
bitcoin
blockchain
ethereum
flutter
nextjs
python
rust
solana
typescript
full-stack
english
indonesian