National External Software Developer (SafePass360)

About the role

The consultant will engineer, test, and optimise the core application codebase for SafePass360, an offline‑first digital safeguarding companion for humanitarian workers in low‑connectivity zones of South Sudan.

Key responsibilities

• Develop a cross‑platform Flutter application shell for Android, Windows and Linux and integrate quantised Small Language Models (SLMs) with on‑device inference.
• Implement a JSON‑driven scenario engine with 15 interactive PSEA scenarios, multi‑lingual audio, and lightweight avatar animations while keeping the app binary under 150 MB.
• Design and secure local NoSQL storage (Hive/ObjectBox) with AES‑256 encryption and ensure zero‑PII handling.
• Build an opportunistic background sync layer that batches encrypted anonymous telemetry to the central Juba CMS when a trusted Wi‑Fi network is detected.

Required profile

• Bachelor’s degree in Computer Science, Software Engineering or a related field.
• Minimum 4 years of professional experience with Flutter/Dart and edge‑AI model integration.
• Strong communication skills in English; experience with gender‑based violence or humanitarian projects is a plus.

Required skills

• Flutter, Dart, state‑management (BLoC, Provider, Riverpod)
• Edge‑AI runtimes (ONNX Runtime Mobile, llama.cpp, TensorFlow Lite, PyTorch Mobile)
• Quantised SLMs (e.g., Phi‑3‑mini, Qwen‑1.5B)
• Local databases (Hive, ObjectBox, SQLite) with AES‑256 encryption
• Audio/visual integration (Lottie, Rive, offline STT/TTS)
• JSON‑driven state machines and QR‑code generation