Key skills
FlutterDartMobile app architectureState management ProviderState management FreezedState management BlocState management MobXProtobufgRPCRESTful API designMobile CI/CDGit workflowsAI-driven development toolsPrompt engineeringLLM-based code generationTest writingCode review automationHallucination mitigation strategiesAILLMMobXRESTfulGitCI/CDCommunicationCollaborationSales
About this role
HighLevel is a cloud-based, all-in-one white-label marketing and sales platform that empowers marketing agencies, entrepreneurs, and businesses to elevate their digital presence and drive growth. The Software Development Engineer III will be responsible for architecting high-performance mobile software, building production-grade Flutter apps, and leveraging AI tools to enhance development processes.
Responsibilities:
- Architect and own high-performance, scalable mobile software — from initial design to long-term stability and performance
- Build production-grade Futter apps used by thousands of customers daily, across diverse industries and use cases
- Leverage LLMs and AI tools to write, refactor, test, and debug code effciently — while implementing guardrails to reduce hallucination and boost reliability
- Develop and maintain shared tooling, frameworks, and libraries that empower other engineers to build fast with confdence
- Collaborate with designers, PMs, and platform/backend engineers to ship full-stack features
- Measure and improve app performance, test coverage, code health, and build stability using modern dev tooling
- Stay on the bleeding edge of AI/LLM technology, Futter best practices, and mobile architecture patterns — and bring that knowledge back to the team
Requirements:
- 4+ years of professional engineering experience (SDE II/III), including 3+ years in Futter/Dart
- Demonstrated ability to architect maintainable, modular mobile systems
- Mastery of Futter internals, widget lifecycle, performance profiling, and popular state management approaches (e.g., Provider, Freezed, Bloc, MobX)
- Experience working with Protobuf/gRPC in Dart
- Track record of shipping and supporting large-scale mobile apps in production
- Fluency in RESTful API design, mobile CI/CD, and Git-based workflows
- Strong understanding of AI-driven development tools — including prompt engineering, LLM-based code generation, test writing, and code review automation
- Familiarity with hallucination mitigation strategies (e.g., code constraints, test scaffolding, embeddings, context injection)
- Excellent communication and collaboration skills — especially in distributed, asynchronous teams
- Contributions to AI tooling, Futter open-source libraries, or AI-enhanced mobile features