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Welvaart

Android Engineer (Trainer)

Welvaart
Portugal · Full-time · Entry

Job Description – Android Trainer (Freelance)

Contract Type: Freelance

Duration: 5 weeks

Training Audience: 40+ professionals

Compensation: €5,000 – €10,000 (depending on experience and training proposal)

Role Overview

We are looking for an experienced Android Trainer to deliver an intensive, high-quality training program for a large group of professionals.

The goal is to ensure strong technical foundations, practical skills, and alignment with modern Android development standards, including architecture, performance, clean code, and security.

This role requires not only deep technical expertise, but also the ability to communicate clearly, structure learning paths, and guide professionals through real-world development challenges.

Key Responsibilities

  • Design and deliver a structured Android training program tailored to the audiences level
  • Deliver both theoretical and hands-on sessions focused on modern Android development
  • Teach and reinforce best practices for performance, stability, and maintainability
  • Explain and apply Android architectural patterns (e.g. MVVM, Clean Architecture, MVP)
  • Promote Clean Code principles and sustainable development practices
  • Address Android application security, including data protection and secure communication
  • Use real-world examples and practical exercises to encourage problem-solving
  • Support and guide trainees throughout the program, answering questions and providing technical direction

Training Topics (Expected Scope)

  • Core components of the Android SDK and their responsibilities
  • Differences between Activity and Fragment and appropriate use cases
  • Proper Activity lifecycle management
  • Performance optimization and application stability
  • Android architectures and their trade-offs
  • Application of SOLID, DRY, and Clean Code principles
  • Android security, including:
    • Protection of sensitive data
    • Avoiding common vulnerabilities (permissions, input handling, networking)
    • Certificate pinning: concept, importance, and practical usage
    • Implementing certificate pinning in modern Android applications
  • Current Android technologies and ecosystem trends
  • Discussion of recent technical challenges and how they were solved
Required Profile

  • Strong, proven experience in Android development
  • Previous experience as a trainer, mentor, or tech lead is a plus
  • Excellent communication skills and ability to explain complex topics clearly
  • Ability to structure content and adapt to different learning paces
  • Passion for knowledge sharing and talent development

What We Value

  • Practical, real-world–oriented teaching approach
  • Well-structured and clearly defined training plan
  • Professional, empathetic, and results-driven mindset

Key Skills

Ranked by relevance

android technical expertise
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Posted
Feb 13, 2026
Type
Full-time
Level
Entry
Location
Lisbon
Company
Welvaart

Industries

IT Services IT Consulting

Categories

Engineering Information Technology

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