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HydroNeo

Full Stack Developer

HydroNeo

. Full-Stack Feature Development: Contribute to features across the stack, from database and APIs through to the Flutter mobile UI.

Posted 4/20/2026full-timeBangkok • 🇹🇭 ThailandJuniorMid-LevelWebsite

Tech Stack

Tools & technologies
AndroidDockerFlutteriOSIoTJavaKafkaKubernetesMongoDBPostgres

About the role

Key responsibilities & impact
  • 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

What you’ll need
  • 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

Comp & perks
  • 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.

ATS Keywords

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Hard Skills & Tools
FlutterJavaREST APIsPostgreSQLMongoDBAPI developmentMobile App DevelopmentCode QualityContinuous LearningError Handling
Soft Skills
Analytical skillsProblem-solvingCritical thinkingTeam playerOwnershipCuriosityWillingness to learnCommunication
Certifications
Bachelor's degree in Computer ScienceBachelor's degree in Engineering