FullStack Developer for Tech Startup (Hybrid)

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 with a dynamic team of 30 working across our two offices in Bangkok and Surabaya.

Are you ready to shape the future of aquaculture and make a real difference for shrimp and fish farmers worldwide As our next FullStack Developer you wont just write code youll 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.

Were looking for a developer whos hungry to grow passionate about meaningful work and excited to build something that truly matters. Youll 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.

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

Tasks

Primary Responsibilities:

Full-Stack Feature Development:

• Contribute to features across the stack from database and APIs through to the Flutter mobile UI.
• Work with senior engineers product and design to turn requirements into working features.
• Grow into making independent implementation decisions as you learn our systems.

Mobile App Development (Flutter):

• Build and maintain screens widgets and state in our Flutter mobile application.
• Connect the app to backend APIs with proper error handling and loading states.
• Learn and apply mobile patterns for navigation data flow and platform behavior on iOS and Android.

API and Database Work:

• Build and extend REST APIs in Java that serve our Flutter clients.
• Write queries and schema updates across PostgreSQL and MongoDB and learn when each fits best.
• Keep API contracts and documentation aligned with what the mobile app needs.

Working with AI:

• Use AI coding assistants as a daily part of your workflow to move faster and learn quicker.
• Contribute to AI-powered features in our product from prompt design to integrating AI services into the backend and mobile app.
• Develop good judgment about when to trust AI output when to verify and when to solve it yourself.

Code Quality and Continuous Learning:

• Participate in code reviews on both backend and Flutter changes and write tests for the code you contribute.
• Fix bugs and improve performance with guidance from the team.
• Actively build skills across the stack and bring back useful patterns and tools you come across.

You wont know all of this on day one and thats fine. We expect you to grow into areas like IoT and MQTT event-driven systems Kafka and Keycloak with support from the team.

Requirements

• Thai nationals only!
• Bachelors degree in Computer Science Engineering or a related field (or equivalent practical experience).
• Around 12 years of development experience through work internships or substantial personal projects. Exposure to both backend and mobile is a plus but we dont expect depth in both yet.
• Working knowledge of at least one backend language (Java preferred) and familiarity with REST APIs.
• Some experience with Flutter or with another mobile framework and a genuine interest in picking up Flutter.
• Familiarity with relational databases (PostgreSQL) and/or document databases (MongoDB).
• Exposure to any of the following is a plus but not required: Keycloak MQTT Kafka event-driven systems IoT Docker or Kubernetes.
• Good analytical problem-solving and critical-thinking skills.
• A team player who takes ownership of their work and cares about and willingness to learn across the stack from mobile UI to backend services to IoT.
• English (able to communicate within an international team).
• Hybrid work in our Surawong Bangkok office.

Benefits

Why Join Us

Youll be part of a purpose-driven multicultural team working on innovative solutions in one of the worlds 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 offices in central locations

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