Job description for IoT & Electrical Engineer at PT Optimaxx Prima Teknik
Build things that matter
At Optimaxx, we build smart connected systems that turn real-world equipment into useful, actionable intelligence. Our devices run in the field, and the data they produce powers the next generation of engineering platforms we are developing.
We are growing, and we are looking for a hands-on engineer who can own the full journey from a hardware idea through to a working, deployed system. If you enjoy solving practical problems, writing firmware, and learning quickly—this role is built for you.
What a typical month looks like
You will not be handed a fixed backlog of tickets. In a typical month, you might:
- Design and prototype new connected devices—sensors, controllers, communication and modules.
- Write and improve embedded firmware in C/C++ and Python, running on microcontrollers such as ESP32, STM32, or equivalent platforms.
- Configure device-to-cloud connectivity using standard IoT communication protocols, making sure data flows reliably and securely from the field.
- Work alongside our software and data team to turn raw sensor output into clean, structured data that drives dashboards, analytics, and intelligent system insights.
- Diagnose and fix field hardware and firmware issues—track down the root cause, not just the symptom.
- Evaluate and recommend wireless technologies (Wi-Fi, LoRa, GSM/4G, BLE) and components for new product requirements.
- Contribute to system architecture discussions and technical documentation.
What you need (the non-negotiables)
- Degree in Electrical Engineering, Electronics, Computer Engineering, Mechatronics, or a related field—or equivalent practical experience that demonstrates the same level of skill.
- Around 1–4 years of hands-on experience designing, building, and deploying IoT or embedded electronic systems (real devices, in the real world—not just coursework).
- Comfortable working with circuit schematics, hardware prototyping, and PCB layout at a practical level.
- Working knowledge of firmware development in C/C++ or Python, and the confidence to debug your own code when it misbehaves.
- Solid troubleshooting instincts—you can systematically isolate a hardware or firmware fault without losing patience or needing step-by-step guidance.
- Clear, professional communication in English (written and spoken).
Bonus points — genuinely optional, but tell us if you have them
- None of these are required. If you have a few, you are a significantly stronger candidate for where we are going:
- Data skills: SQL, Python for data processing, or data visualisation tools such as Grafana, Thingsboard.
- Broader coding ability beyond firmware: scripting, REST APIs, or basic web/backend development.
- Exposure to industrial or power systems, automation equipment, or field-deployed installations.
- Familiarity with version control (Git), Machine Learning and AI tools and working in a small, fast-moving engineering team.
Why you’ll want to be here
- Real ownership — you lead projects end to end, from the first schematic to field deployment. Your work is visible and your name is on it.
- Technical growth — we are building a data and AI layer into our product stack, and we will support you in growing into it with training, tools, and hands-on project work.
- Variety — hardware, firmware, software integration, field diagnostics, and data—you will not be stuck doing the same task every day.
- Impact — we are a focused team where good ideas get heard and acted on. You will not disappear into a bureaucracy.
- Development — certifications, courses, and conference access are available and actively encouraged.
How we hire
We run a straightforward, transparent process: a short application review, a small hands-on task so we can see how you actually work, a structured interview, and a final conversation. We will tell you clearly where you stand at every step.
We offer competitive remuneration for the right candidate.
How to apply
Send your CV and a short note three to five sentences about a hardware or IoT project you are proud of: what you built, what made it challenging, and what you would do differently now. Links to GitHub repositories, project write-ups, or photos of your work are strongly encouraged.
