Hybrid Full Stack Developer

at HydroNeo

• Job title: Full Stack Developer
• Job type: Full Time
• Experience level: Junior, Mid level
• Salary: Not specified
• Degree requirement: Bachelor's Degree
• Tech skills: Android, Docker, Flutter, iOS, IoT, Java, Kafka, Kubernetes, MongoDB, Postgres
• Location requirements: Hybrid, Bangkok, Thailand

About the role

• FullStack Developer contributing to Smart Farming solutions in aquaculture at HydroNeo. Collaborate on mobile and backend development while learning through an innovative startup environment.

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 won't know all of this on day one, and that's 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!
• Bachelor's degree in Computer Science, Engineering, or a related field (or equivalent practical experience).
• Around 1–2 years of development experience, through work, internships, or substantial personal projects.
• Exposure to both backend and mobile is a plus, but we don't 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 quality.
• Curiosity and willingness to learn across the stack, from mobile UI to backend services to IoT.
• English (able to communicate within an international team).

Benefits

• 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 hierarchies.
• 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.