Senior Flutter Developer

Moovx; United States; Remote; USD 120,000 - 160,000; Full time

Benefits offered by this job

100% remote (LATAM)

Job summary

Moovx is seeking a Senior Flutter Developer to drive the architecture and delivery of high-performance mobile apps for a key US client in e-commerce. You’ll lead cross-functional teams, implement secure checkout flows, and optimize API interactions using REST and GraphQL.

This 100% remote role is LATAM-based, offering a long-term, full-time contractor arrangement with competitive USD compensation and close collaboration with US-based engineering leadership.

Qualifications

• Senior Mobile Developer with Flutter expertise.
• Experience with Apollo GraphQL, federated schemas, and API integration.
• Fluent English communication with US stakeholders; CST time alignment.

Responsibilities

• Lead the architecture and end-to-end Flutter development for a key client.
• Integrate with headless CMS and backend services using REST/GraphQL.
• Optimize performance, security, and CI/CD pipelines for mobile apps.
• Mentor junior team members and uphold coding standards.

Skills

Flutter

English communication

Leadership

Education

Bachelor’s degree in Computer Science or related

Tools

Apollo GraphQL

CI/CD

REST/GraphQL

Flutter state management (BLoC/Riverpod)

Job description

Moovx is hiring a remote candidate for Senior Flutter Developer. This is a full time position. Work location: Latin America. The role typically involves technologies such as GraphQL, CI/CD, Kotlin, Swift, REST, Android.

Our People, Our Core

At MOOVX, you’ll work alongside curious, talented and collaborative people solving real challenges through technology.

ABOUT THE ROLE

We are seeking an experienced Senior Flutter Developer to join our team and drive the development of high-performance mobile applications for a key U.S. client in the e-commerce & retail sector. In this role, you will lead the architecture and technical execution of our Flutter-based e-commerce platform, integrating modern headless CMS systems and advanced GraphQL federation patterns. You will partner closely with cross-functional engineering and backend teams to optimize API interactions, deliver seamless user experiences, implement secure checkout flows, and elevate coding standards across the mobile application lifecycle.

RESPONSIBILITIES

1. Mobile Architecture & Leadership Lead the end-to-end development, technical design, and architecture of high-performance Flutter mobile applications for the e-commerce sector. Participate in architectural planning discussions, mentor junior/mid-level developers, and enforce high coding standards through structured code reviews.
2. Integration & GraphQL Federation Seamlessly integrate mobile applications with headless CMS platforms and backend e-commerce services using both RESTful APIs and GraphQL. Implement and maintain GraphQL federation patterns (including Apollo Client) to optimize data fetching, state management, and schema integration.
3. Performance & User Experience Ensure responsive, scalable, and high-performing UI/UX across a wide variety of iOS and Android devices. Collaborate closely with backend engineers to streamline API interactions, data flow, and state consistency.
4. Security & E-commerce Workflows Implement secure authentication, end-to-end data encryption, and robust payment processing flows adhering to mobile security best practices. Ensure strict compliance with mobile e-commerce security protocols.
5. Engineering Excellence & Continuous Delivery Set up and maintain CI/CD pipelines and automated testing frameworks to enhance build efficiency and software quality. Continuously evaluate performance metrics, identify bottlenecks, and refine application performance.

QUALIFICATIONS (MUST HAVE)

• Software development experience, with demonstrated expertise as a Senior Mobile Developer specializing in Flutter.
• Hands-on experience with Apollo GraphQL, federated schemas, and modern API integration patterns (REST/GraphQL).
• Deep knowledge of Flutter state management solutions (e.g., BLoC, Riverpod, Provider).
• Proven track record of integrating mobile applications with e-commerce backends, headless CMS solutions, and payment gateways.
• Strong knowledge of mobile app security best practices, secure authentication, and PCI/payment integrations.
• Solid experience setting up CI/CD pipelines and executing automated testing strategies for mobile apps.
• Advanced / Fluent English (written and spoken) with high communication skills for direct interaction with U.S. stakeholders.
• Ability to work aligned with the CST time zone from LATAM.

NICE TO HAVE

• Previous experience with large-scale retail or e-commerce platforms.
• Familiarity with native iOS (Swift) or Android (Kotlin) development to handle custom native plugins when needed.
• Experience with performance monitoring tools and crash analytics (e.g., Firebase, Sentry).
• Bachelor's degree in Computer Science, Software Engineering, or a related technical field.

WHAT WE OFFER

• 100% remote work from anywhere in LATAM.
• Full-time, long-term contractor role.
• Competitive compensation in USD.
• Opportunity to work directly with U.S.-based engineering leadership on high-impact retail platforms.
• High autonomy, flexibility, and a collaborative team environment.

Ready to make an impact?

We’re committed to building a diverse and inclusive workplace where everyone has the opportunity to grow.

Skills required for this role include GraphQL, CI/CD, Kotlin, and related tools for day-to-day development. Seniority level: Senior.