C++ Developer (IoT Firmware) for Tech Startup

HydroNeo (Thailand) Co., Ltd.; Surabaya ꦱꦸꦫꦧꦪ; On-site; Confidential; Full time

Job summary

A fast-growing international startup seeks a Firmware Developer in Surabaya, Indonesia, to enhance Smart Farming solutions for aquaculture. You will develop features, control sensors, and work closely with a diverse team. This role offers a competitive salary, employee stock options (ESOP), and a flexible working environment. Ideal candidates have a degree in Computer Science, knowledge of C/C++, Fieldbus, and experience with Git, as well as the ability to communicate in English within an international team.

Benefits

Competitive salary

Employee Stock Options (ESOP)

Flexible work environment

Professional growth opportunities

International work environment

Qualifications

• Bachelor's or Master's degree in Computer Science or a related field.
• Proficiency in C/C++ programming languages.
• Experience with Fieldbus systems and version control tools.

Responsibilities

• Develop and test features to enhance user experience.
• Create programs to read sensor data and control actuators.
• Implement communication protocols like UART and I2C.

Skills

C/C++

Fieldbus

Git

Zephyr OS

Team collaboration

English communication

Education

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

Job description

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 and if you want, you have the chance to immerse yourself in our mission by working in our office in Bangkok for a few weeks before helping us to 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!

Tasks

• Develop and test features to enhance user experience on the machine.
• Create programs/features 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.
• Identify and integrate required sensors, actuators, or other peripheral devices.
• 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.
• 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.

Requirements

• Bachelor/Master’s degree in Computer Science or related fields.
• Knowledge of C/C++.
• Experience in Fieldbus.
• Experience in version control with Git.
• Experience with Zephyr OS platform is a plus.
• Basic understanding of electronics.
• Able to work as a team and focus on objectives with high standards and quality.
• English (able to communicate within an international team).
• work on-site in our Surabaya office.

Benefits

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.