Full Stack Flutter Developer

Posted 6 Days Ago
Be an Early Applicant
Riyadh, SAU
In-Office
Mid level
Software
The Role
Build and maintain cross-platform Flutter mobile apps and the supporting backend services. Design APIs, optimize performance across frontend and backend, implement authentication and third-party integrations, and collaborate with product and design in a fast-paced startup to deliver scalable end-to-end features.
Summary Generated by Built In

About the Role

We are seeking a Full-Stack Engineer with a strong expertise in Flutter to join a fast-growing

startup building digital solutions for the construction industry. While your primary

superpower will be driving mobile app development using Flutter, you will also play a key

role in building, maintaining, and integrating the backend services that power our mobile

experiences. This is a hands-on role for a versatile engineer who enjoys building scalable,

end-to-end features in a fast-paced, agile environment.

Key Responsibilities

• Frontend Mobile Development: Design, build, and maintain cross-platform mobile

applications using Flutter/Dart, translating complex UI/UX designs into high-quality,

responsive interfaces.

• Backend Architecture & Integration: Develop, optimize, and maintain scalable

backend services, databases, and server-side logic to support the mobile application.

• API Management: Design and implement robust RESTful APIs, WebSockets, or

GraphQL endpoints, ensuring smooth data synchronization between the frontend

and backend.

• Performance Optimization: Debug, profile, and optimize end-to-end application

performance—addressing both mobile UI rendering bottlenecks and backend

database query latency.

• Clean Code & Architecture: Maintain clean, scalable, and well-documented

architectural patterns across the entire technical stack.

• Startup Collaboration: Work closely with product owners, designers, and the

broader engineering team to contribute to architectural decisions as our product

scales.


Requirements

Core Mobile Expertise: 3–5 years of hands-on experience with Flutter & Dart, with a

proven track record of shipping production-ready mobile apps to the App Store and

Google Play.

• Robust Backend Experience: Solid experience building server-side applications using

modern backend technologies (e.g., Node.js, Python/Django, Go, or .NET) and

managing relational/non-relational databases (PostgreSQL, MongoDB, etc.).

• State Management & Architecture: Deep understanding of Flutter state

management solutions (Bloc, Riverpod, or Provider) and solid architectural patterns

(Clean Architecture, MVVM).

• System Integration: Strong proficiency in REST API integration, authentication

protocols (OAuth2, JWT), and third-party SDK integrations.

• Industry Context: Prior experience building software for construction, real estate,

PropTech, or field-services industries is a strong plus.

• Mindset & Communication: Comfortable navigating a fast-paced startup

environment with evolving scopes. Strong English communication skills (written and

verbal) are essential.

Nice to Have

• Experience with Cloud Infrastructure (AWS, Azure, or GCP) and serverless

architectures.

• Familiarity with mobile CI/CD pipelines (Codemagic, Fastlane, GitHub Actions) and

automated testing frameworks.

• Background in native Android (Kotlin) or iOS (Swift) development.

Skills Required

  • 3-5 years hands-on experience with Flutter and Dart
  • Proven track record of shipping production-ready mobile apps to App Store and Google Play
  • Experience building server-side applications using modern backend technologies (Node.js, Python/Django, Go, or .NET)
  • Experience managing relational and non-relational databases (PostgreSQL, MongoDB, etc.)
  • Deep understanding of Flutter state management (Bloc, Riverpod, Provider) and architectures (Clean Architecture, MVVM)
  • Proficiency in REST API integration, WebSockets or GraphQL, authentication protocols (OAuth2, JWT), and third-party SDK integrations
  • Comfortable working in a fast-paced startup with strong written and verbal English communication
  • Prior experience in construction, real estate, PropTech, or field-services software
  • Experience with cloud infrastructure (AWS, Azure, GCP) and serverless architectures
  • Familiarity with mobile CI/CD pipelines (Codemagic, Fastlane, GitHub Actions) and automated testing frameworks
  • Background in native Android (Kotlin) or iOS (Swift) development
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The Company
HQ: Dallas, TX
175 Employees
Year Founded: 2014

What We Do

A digital transformation company, driven to solve some of the most complex problems in the world today through technology. Our core service portfolio includes staff augmentation, software development and cloud services with over 300+ projects delivered to date. Established in 2014, with a continuously growing team of 250+ experts, operating across 3 regions with Americas, Middle East, and Southeast Asia, CodeNinja is one of the fastest growing technology companies recognized by Forbes Technology Council. With value addition being a core focus for the company, CodeNinja ranks as one of the top and best reviewed software development and services company. Now offering enterprise cloud solutions to some of the leading technology companies in the world, the company has secured funding of $1.6M and is poised to invest in redefining workplace dynamics through use of advanced AI. CodeNinja has earned the trust of more than 240 clients spread across 15 different countries and 9 different industries. The company is also one of the top-rated outsourcing services provider in Pakistan, forming dedicated technology teams for some of the world's leading organizations like Microsoft, Lifeforce (Tony Robbins) and OTL alongside unicorns such as 24Seven, ABHI, and Graana. In addition, to ensure quality and commitment to client data security, the company is now ISO 270001 certified. Services: · Offshore Engineering Teams · Custom Software Development · Dedicated Development Center · Application Modernizations · Cloud Services and Solutions · Modern Workplace Solutions · Digital Transformation Strategy · AI Consulting · AR/VR and Digital Twins · eCommerce Solutions Awards and Achievements: Top 1000 Companies Clutch Global 2023 Top Company in .Net Developers 2023 Clutch Global Fall 2023 Certifications & Partnerships: Adobe Commerce Cloud Solution Partner Microsoft Solution partner for business applications. Microsoft Solution Partner for Azure Data and AI.

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