Embedded Firmware / Zephyr OS Developer (temporary relocation to Bangkok) in INDONESIA

HydroNeo is a fast-growing, international startup focusing on Smart Farming solutions for the global aquaculture industry. Our vision is to expand our Smart Farm Management System — already the market leader in Thailand — into the HydroNeo Aquaculture Super App, serving everything farmers and the industry need. We are backed by leading Thai and international investors, BOI-promoted, and have a dynamic team of 30+ in Bangkok.

​Are you ready to shape the future of aquaculture and make a real difference for shrimp and fish farmers worldwide? As our next Firmware Developer, you won’t just write code, you’ll help redefine an entire industry. This is not your typical 9-to-6 job. Here, your ideas matter, your voice is heard, and your code directly impacts real people and sustainable food production.

​We’re looking for a developer who’s hungry to grow, passionate about meaningful work, and excited to build something that truly matters. You’ll have the freedom to propose ideas, experiment, validate your solutions with data, and see your work come to life in the hands of our users.

​To kick things off, you’ll have the chance to immerse yourself in our mission by relocating to vibrant Bangkok for a few months, get to know the team, our innovative product, and even meet the farmers whose lives you’ll help improve. Afterward, choose your adventure: stay in Bangkok or help us launch HydroNeo Indonesia in Surabaya, where your impact will span across borders and markets.

​If you want to build, learn, and make a difference far beyond the average dev job, we want to meet you!

• Identify and integrate required sensors, actuators, or other peripheral devices.


• Develop and test code to read sensor data and control actuators based on input.


• Implement communication protocols (e.g., UART, I2C, SPI) for interfacing with external devices.


• Optimize code for memory usage and processing speed.


• Debug and troubleshoot any hardware or software issues that arise during development.


• Document the project by creating clear and concise code comments and wiring diagrams.


• Conduct thorough testing to ensure the project meets the desired functionality and reliability.


• Refine and improve the code based on testing results and user feedback.


• Consider power management and implement energy-saving techniques if required.


• Prepare the project for deployment, including organizing files and finalizing documentation.


• Collaborate with team members or stakeholders to review the project and gather feedback.


• Provide ongoing support and maintenance as needed, including bug fixes and feature updates.

• Bachelor/Master’s degree in Computer Science or related fields.


• Experience with Zephyr OS platform.


• Experience in Fieldbus.


• Knowledge of C/C++.


• Experience in version control with Git.


• Basic understanding of electronics.


• Understanding Linux.


• Able to work as a team and focus on objectives with high standards and quality.


• English (able to communicate within an international team).

Why Join Us?

You’ll be part of a purpose-driven, multicultural team working on innovative solutions in one of the world’s most important industries. This is a great opportunity to grow professionally in a fast-paced startup environment.

Also, we provide:

• A competitive salary and other perks.


• Employee Stock Options (ESOP) to financially participate in the success of the company.


• Flexible work environment (e.g. office hours) with a focus on results.


• Meaningful work in an award-winning startup with the opportunity of creating real impact.


• Close collaboration with the leadership team and low hierachies.


• International work environment in a great team of 10+ nationalities.


• Very steep learning curve due to our open and performance-based culture.


• Great office in central location

Make it matter - Join HydroNeo and turn your ideas into impact.