Senior Flutter Architect & Migration Lead (Remote)

JobCubby; Johannesburg; Hybrid; ZAR 900,000 - 1,500,000; Full time

Benefits offered by this job

Remote work flexibility

Private medical insurance

Retirement plan

Learning platforms

Job summary

Luno is seeking a Lead Flutter Engineer in Johannesburg to set the technical strategy for a major Flutter migration, establish engineering standards, and drive a high-performance Flutter codebase across markets.

You will own the Flutter platform roadmap, govern shared tooling, and lead the Flutter chapter while collaborating with product and design to unlock ambitious platform capabilities.

Qualifications

• 7+ years of professional mobile engineering experience, with at least 3 years leading hybrid development on production applications at significant scale.
• Expert-level Dart and Flutter knowledge: rendering pipeline, widget internals, platform channels, custom render objects, Impeller, and the Flutter engine.
• Proven experience designing and governing cross-team Flutter architectures and migrating large, complex legacy mobile applications.
• Deep expertise in testability - widget, integration, golden-image, and end-to-end test strategies at programme scale.
• Strong understanding of mobile release engineering: automated pipelines, phased rollouts, feature flags, crash monitoring, and A/B testing in a Flutter context.
• Track record of defining and driving adoption of engineering standards across multiple teams.
• Prior staff/principal engineering or equivalent IC leadership experience strongly preferred.
• Advantageous: native iOS (Swift) or Android (Kotlin) background; fintech or regulated-app experience; open-source Flutter packages contributions.

Responsibilities

• Own the technical vision and roadmap for Luno's Flutter platform and define migration strategy across portfolios.
• Design and document Flutter architecture, including state management, platform channels, and design system integration.
• Sequence and govern the full migration programme, identifying dependencies and ensuring quality gates as velocity increases.
• Lead the Flutter chapter, conduct design reviews, write decision records, and mentor mid/senior engineers.
• Translate technical constraints into product implications and influence roadmap with architectural insight.

Skills

Dart & Flutter

Mobile engineering

Cross-team architecture

Flutter migration strategy

Testing strategies

Release engineering

Engineering standards

Leadership experience

Open-source contributions

Education

Degree in Computer Science or Software Engineering

Job description

Luno is seeking a Lead Flutter Engineer in Johannesburg to set the technical strategy for a major Flutter migration, establish engineering standards, and drive a high-performance Flutter codebase across markets.

You will own the Flutter platform roadmap, govern shared tooling, and lead the Flutter chapter while collaborating with product and design to unlock ambitious platform capabilities.