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Weekend Flutter App Developer Jobs in California

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AI Development Intern, 2026

Mountain View, CA · On-site

$40 - $50/hr

App development experience (required): React Native / Flutter / native iOS / native Android - able to ship production-grade screens and integrate APIs * Strong fundamentals in software engineering ...

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Weekend Flutter App Developer information

What are some common challenges faced by Weekend Flutter App Developers, and how can they be addressed?

Weekend Flutter App Developers often juggle tight deadlines and limited collaboration time with remote or distributed teams. Managing effective communication and staying aligned with project goals can be challenging, especially when balancing other weekday commitments. To overcome these hurdles, it's important to establish clear expectations with stakeholders, use collaboration tools efficiently, and prioritize tasks for maximum impact during limited working hours. Regular check-ins and thorough documentation also help maintain project momentum and ensure smooth handovers.

What are the key skills and qualifications needed to thrive as a Weekend Flutter App Developer, and why are they important?

To thrive as a Weekend Flutter App Developer, you need proficiency in Dart programming, experience with Flutter framework, and a solid understanding of mobile app development principles, often backed by a relevant degree or portfolio. Familiarity with version control systems like Git, and experience using IDEs such as Android Studio or VS Code, are commonly required; Flutter or Dart certifications can be advantageous. Strong problem-solving, time management, and communication skills help developers efficiently collaborate and deliver quality work within tight weekend timelines. These skills ensure that developers can quickly build, test, and deploy robust mobile applications to meet project goals and deadlines.

What does a Weekend Flutter App Developer do?

A Weekend Flutter App Developer is a software professional who specializes in building, testing, and maintaining mobile applications using the Flutter framework, specifically during weekends. Their responsibilities typically include collaborating with teams or clients to understand project requirements, writing clean and efficient Dart code, and debugging or updating existing apps. This role is ideal for freelancers or part-time developers who are available to work on projects outside of standard weekday hours. The position often requires strong problem-solving skills and the ability to deliver quality work within tight timeframes.
What are the most commonly searched types of Flutter App Developer jobs in California? The most popular types of Flutter App Developer jobs in California are:
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Weekend Flutter App Developer jobs near you
Senior Mobile Engineer - Grant Growth Team

Senior Mobile Engineer - Grant Growth Team

Kikoff

San Francisco, CA

Other

Posted 20 days ago

Job description

What You'll Be Doing

  • Build and scale a top finance app on iOS and Android that directly impacts the financial lives of hundreds of thousands of users, growing to millions as we expand our advancing, credit building, and future banking products.

  • Own end-to-end feature development across the user lifecycle - from the first identity verification and onboarding flows to cash advances, cash flow management, income earning opportunities, to account management experiences.

  • Integrate with financial service providers (Plaid, Stripe, Tabapay) and internal APIs, building robust mobile interfaces that handle sensitive financial data with accuracy and security at scale.

  • Develop reusable components, design system elements, and feature scaffolds that accelerate experimentation velocity across our multi-brand mobile platform (Grant, Kikoff, Banking).

  • Enhance mobile platform foundations - improving build systems, CI/CD pipelines, code generation tooling, and developer velocity for our growing team.

You'll work closely with product, data science, and operations teams to ship features that directly impact customers' financial wellbeing while maintaining the highest standards of reliability, security, and compliance.

What We're Looking For

  • 5+ years of mobile development experience with a track record of building and scaling production apps across iOS and/or Android.

  • Strong mobile architecture skills - deep understanding of state management patterns, app architecture (MVVM, MVI, Clean Architecture), and building maintainable codebases at scale.

  • Production app ownership - you've shipped consumer-facing apps at scale, handled crashes, edge cases, and maintained features through multiple releases.

  • A mobile platform expertise - solid foundation in iOS (Swift/UIKit/SwiftUI) and/or Android (Kotlin/Java/Jetpack Compose) development.

  • Testing mindset - comfortable writing unit, integration, and UI tests; you build quality in from the start.

  • API integration experience - skilled at working with REST APIs, handling async operations, error states, and building resilient network layers.

Ideal Candidate Also Has

  • Flutter/Dart experience - familiarity with Flutter framework, cross-platform development, or strong willingness to learn (our codebase is Flutter-based).

  • Fintech experience - background with payment systems, banking APIs (Plaid, Stripe), identity verification (Sentilink, Persona), or financial services infrastructure.

  • Technical leadership - ability to own complex mobile initiatives end-to-end, from architecture design through implementation, testing, and rollout.

  • Mentorship - help level up the team through code reviews, design docs, technical guidance, and establishing mobile best practices.

  • Impact focus - balance technical excellence with pragmatic delivery - you know when to build for scale vs. ship fast and learn.

  • Cross-functional collaboration - partner effectively with backend engineers, product, and designers to deliver seamless end-to-end experiences.

  • Operational excellence - take ownership of the reliability and performance of features you build, monitoring production issues and iterating quickly.

What Makes this Role Exciting

  • We're scaling hyperfast! Our mobile products are growing rapidly with significant scope to expand features, infrastructure, and the team.

  • Direct user impact - your work immediately improves the financial lives of real customers. Not nice-to-haves, but life-changing products (cash advances, credit building, banking).

  • Greenfield opportunities - build new 0-to-1 experiences and features alongside modernization of existing flows. Shape the mobile platform as we grow.

  • Small, high-impact team - your contributions are immediately visible. Own features end-to-end and see them impact thousands of users weekly

Apply