Available for new opportunities

Hi, I'm Jonathan

Developer & System Engineer

I design scalable systems and build intelligent automation to solve real-world problems. I combine clean architecture, seamless integration, and data-driven thinking to deliver high-impact, user-focused solutions.

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Let's Connect

Find me across the web and let's start a conversation about your next project

Always open to interesting conversations and collaborations

Experience & Projects

A journey through my professional experience and personal projects that showcase my growth as a developer

Unilever Indonesia Tbk logo

Automation & Digitalization

System Engineer

Unilever Indonesia Tbk
Surabaya, Indonesia
Feb 2025 – Present
Company Site

Deployed 3-layer architecture for factory-wide anomaly detection, reducing logistic bottleneck latency by 24%. Implemented predictive routing with queuing theory over 100K+ datapoints, preventing multimillion-IDR losses.

PythonFastAPIRAGQueue TheoryEdge ControlLLM
Barunastra ITS logo

1st Place Roboboat 2025

Electrical Systems Engineer

Barunastra ITS
Surabaya, Indonesia
Jan 2025
Company Site

Led power and comms platform in “Nala Ares”. Achieved 90% mission continuity under fault-injected scenarios.

STM32RFPID ControlTelemetry LoopC++
robotjaol | Finance logo

Personal Finance Management Platform

Full-Stack Engineer

robotjaol | Finance
Surabaya, Indonesia
Jun 2025 - Jul 2025
View Project

Engineered a personal financial dashboard with real-time income–expense tracking, trading-style visualizations, and category-based analytics. Optimized for responsive UX with secure data flow and interactive infographics.

Next.jsTypeScriptTailwind CSSChart.jsSupabaseFramer Motion
GE Aerospace logo

APU Control System

Electrical Engineer

GE Aerospace
Online
Mari 2025 - Jul 2025
View Project

Design anomaly detection, and system health analytics (APU).

APU ControlAnomaly DetectionSystem Health AnalyticsPythonMachine Learning
Innoveam logo

Systems Engineer

Fault Injection & Synchronization

Innoveam
Surabaya, Indonesia
Jul 2024 – Aug 2024
Company Site

Executed actuator–logic synchronization for 34 autonomous units. Injected multistate fault modes to validate system recovery across 7 operational anomalies.

Real-Time ControlClosed-loop SystemsFailure InjectionC++
ITS Civil Engineering logo

Seismic Structural Monitoring

Seismic Systems Engineer

ITS Civil Engineering
Surabaya, Indonesia
Jul 2024 – Dec 2024
View Project

Deployed 5Hz SHM nodes with DKF + fuzzy logic fusion. Captured subthreshold tremors for early warning systems under real-world deployment scenarios.

MPU6050Kalman FilterFuzzy LogicPythonESP32
Barunastra ITS logo

3rd Place Roboboat 2024

Electrical Designer

Barunastra ITS
Surabaya, Indonesia
Jan 2024
Company Site

Engineered fault-tolerant system fallback during electromagnetic interference for “Nala Proteus V2”.

STM32Embedded BMSPCBPIDSensor Fusion
Seanatuners ITS logo

PKM-KC | Underwater Autonomous Vehicle (UAV)

Electrical Designer

Seanatuners ITS
Surabaya, Indonesia
Jan 2024 - Aug 2024
View Project

Designed core electrical architecture for autonomous underwater vehicle under PKM research scheme. Integrated sensor–power stack with modular communication logic for mission adaptability and waterproof performance testing.

STM32C++Battery ManagementCAN BusUnderwater Encapsulation
PLC & SCSL Laboratory – ITS logo

CCTV Thermal HVAC

Embedded Systems Developer

PLC & SCSL Laboratory – ITS
Surabaya, Indonesia
Feb 2024 - Aug 2024
View Project

Developed a thermal-vision-based HVAC automation system with CCTV integration. Engineered embedded control logic to detect occupancy and trigger ventilation via real-time temperature maps, enhancing energy efficiency and safety.

CCTVYOLOPythonHVAC Control LogicIoT Protocols
Pertamina Trans Kontinental logo

Electrical Systems Engineer

Control & Power Architect

Pertamina Trans Kontinental
Cilacap, Indonesia
Jun 2023 – Dec 2023
Company Site

Engineered dual-band communication and telemetry fallback across offshore control systems. Achieved 89% signal integrity and energy resilience in high-volatility sea-state operations.

Redundancy LogicRF MeshPower SchematicsAutocadSTM32LoRa
Robo Marine Indonesia logo

Electrical Design Engineer

Autonomy Stack Developer

Robo Marine Indonesia
Bandung, Indonesia
Dec 2023 – Feb 2024
Company Site

Built power-sensor telemetry stack for hydro-oceanographic USVs. Validated sensor rerouting logic under current-induced turbulence in coastal deployments.

I2CPCB DesignESP32ROS2RF Fault Handling
Barunastra ITS logo

1st Place Roboboat 2023

Electrical Designer

Barunastra ITS
Surabaya, Indonesia
Jan 2023
Company Site

Built error-correcting embedded logic for “Nala Proteus”, fusing real-time sensor inputs for robot resilience.

Sensor FusionReal-time LogicSTM32PCBC++
Barunastra ITS logo

1st Place KKCTBN 2023

Electrical Designer

Barunastra ITS
Surabaya, Indonesia
Nov 2023
Company Site

Built power-control stack for “Nala Athena”, reducing power loss by 90% in USV missions.

Power ManagementEmbedded PCBSTM32Battery Logic
KOMDIGI Digital Talent logo

Teaching Assistant

Mentor & Evaluator

KOMDIGI Digital Talent
Surabaya, Indonesia
Jan 2023 – Jun 2023
Company Site

Mentored 100+ national developers, evaluated 50+ systems for viability and UX quality, and embedded real-time feedback into code pipelines.

JavaScriptReactBackend EvaluationAgile Coaching

The journey continues...

4+
Years Experience
30+
Projects Completed
20+
Technologies
100%
Client Satisfaction

Let's Work Together

Have a project in mind or just want to chat? I'm always open to discussing new opportunities and interesting ideas.

Get in Touch

I'm currently available for freelance work and full-time opportunities. Whether you have a question or just want to say hi, I'll try my best to get back to you!

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