About Wastel
Wastel is building digital infrastructure to structure waste flows, bio-resources, and environmental compliance across industries. Our platform connects waste producers, processors, and manufacturing ecosystems through technology.
We are building a serious production system, not a design prototype.
The application involves data pipelines, backend services, and complex stakeholder workflows.

Role Overview

We are looking for a Flutter engineer who understands systems, not just screens.
The role requires someone who can design and build the full application stack, including backend services, APIs, server integrations, and data architecture.
If your experience is limited to UI implementation or consuming APIs created by others, this role will not be a fit.

What You Will Build

Production-grade Flutter mobile and web applications
Backend services and REST APIs
Data architecture and secure server integrations
End-to-end client-server communication
Scalable application workflows used by multiple stakeholders
You will contribute to the complete application architecture, not just frontend components.

Key Responsibilities
Application Development

Design and build high-performance Flutter applications
Implement scalable state management and architecture
Ensure mobile and web performance across devices

Backend Engineering

Design and implement RESTful APIs
Build and maintain backend services
Implement authentication, authorization, and server logic
Design efficient database structures and data flows

Architecture & Integration

Architect complete client-server data pipelines
Manage backend integrations and cloud services
Ensure reliable data synchronization and application stability

Mandatory Requirements (Strict)

Minimum 3 years of Flutter development experience
Academic background in Computer Science, Computer Applications, or related technical discipline
Demonstrated experience building backend services and APIs

Strong understanding of:

REST API architecture
Client-server communication
Database design
Application data flows
Secure server integrations

Candidates without backend development experience will not be considered.

Strongly Preferred

Experience building full-stack mobile applications
Backend development experience with Node.js, Python, Firebase, Supabase, or similar
Experience designing application architecture from scratch
Familiarity with cloud infrastructure and deployments
Experience with scalable system design

What We Value

Engineers who understand systems and architecture
Developers who take ownership of problems
Builders who prefer clean engineering over quick hacks
People comfortable working in early-stage product environments

Full Stack Flutter Developer

Wastel

Job Description

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