South Africa: Fullstack Developer posted by Planet Fitness

About the Role

Planet Fitness is seeking a seasoned and dynamic Full Stack Developer to lead and contribute to the design, development, and deployment of scalable, secure, and performant software systems.

Key Responsibilities

• Build and maintain Flutter codebases for iOS, Android, and Web with clean, scalable architecture.
• Translate UX/UI designs into polished, responsive experiences (custom widgets, animations, adaptive layouts).
• Implement and maintain state management using our preferred patterns (e.g., Riverpod/BLoC), aligned to a modular architecture.
• Ensure strong performance across devices (rendering, frame pacing, memory, startup time, build size).
• Implement robust routing/navigation and deep linking (e.g., GoRouter patterns where relevant).
• Build telemetry into flows (events, funnels, feature usage) to support product decision-making.
• Build and maintain Python backend services using FastAPI (and collaborate with existing services where Django/Flask may exist).
• Design and implement secure, well-documented REST APIs (GraphQL exposure is a plus where needed).
• Implement authentication/authorization patterns suitable for consumer apps (JWT/OAuth2, role-based access where relevant).
• Integrate third-party services (payments, messaging, CRM/marketing tools, analytics, webhooks).
• Own reliability basics: background jobs where required, retries, idempotency, rate limiting, and graceful failure.
• Work with engineering/data stakeholders to design and evolve schemas, indexes, and queries.
• Build performant data access patterns and support reporting/ops use cases without degrading core workloads.
• Apply practical data integrity practices (constraints, migrations, auditing where required).
• Build, consume, and maintain integrations via APIs and webhooks, ensuring secure and observable data flow.
• Support real-time or near-real-time features when required (WebSockets or async patterns).
• Contribute to modular service boundaries and clean interface contracts.
• Contribute to CI/CD pipelines and release hygiene (builds, environments, feature flags where relevant).
• Write and maintain tests across the stack: unit, widget, integration, and API tests.
• Participate in code reviews, architecture discussions, sprint planning, and continuous improvement.
• Produce clear documentation for handover, onboarding, and operational support.

Requirements

• Bachelor’s or Master’s degree in Computer Science, IT or related field.
• 5+ years of software development experience, with 2+ years in a technical leadership role.
• Proven fullstack expertise: Flutter (mobile/web), Java (Spring or equivalent), PHP frameworks, and SQL database design.
• Expert in CI/CD and DevOps practices (Docker, Kubernetes, AWS/GCP/Azure).
• Strong track record of handson delivery of secure, scalable systems in Agile environments.
• Excellent communication, people management and stakeholder engagement skills.

Qualifications

• Degree or Diploma in Information Technology (Programming focus)
• Grade 12