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Flutter Mobile Developer

Revent Technologies
Lagos, Lagos State
Contract
4 weeks ago
Today
R

Flutter Mobile Developer

Revent Technologies

Engineering & Technology

Lagos Contract
IT & Telecoms Confidential
  • Minimum Qualification :
  • Experience Level : Senior level
  • Experience Length : 5 years

Job Description/Requirements


Job Summary:

We are looking for a Senior Mobile Developer with strong proficiency in Flutter and hands-on experience building applications for Android POS devices (e.g., Topwise, Nexgo, PAX). This role will lead the development of mobile and POS applications across key fintech and payment-related projects. The ideal candidate is a self-driven mobile expert who can work across Flutter and native Android environments, and is comfortable integrating device-specific SDKs and payment features.


Responsibilities

Responsibilities: - Facilitate the development of mobile applications using Flutter for both standard Android devices and Android-based POS terminals.

  • Integrate POS terminal SDKs (e.g., Topwise, Nexgo, PAX) for handling card payments, printers, scanners, and hardware interfaces.
  • Collaborate with cross-functional teams (backend, product, UI/UX) to deliver performant and user-friendly applications.
  • Maintain clean, scalable, and secure codebases for both mobile and POS platforms.
  • Implement hardware-level integrations via serial, USB, or Bluetooth protocols when necessary.

- Participate in sprint planning, technical discussions, and code reviews. - Optimize applications for performance, battery usage, and hardware constraints. - Provide mentoring to junior developers and support best practices in mobile development.

  • Develop and maintain technical documentation, including architecture diagrams and technical guides


Requirements:

  • 5+ years of professional mobile development experience.
  • Strong hands-on experience with Flutter (Dart).
  • Working knowledge of native Android development (Kotlin/Java).
  • 2+ years of experience building apps for Android POS devices (Topwise, Nexgo, PAX, or similar).
  • Experience integrating payment SDKs and working with hardware APIs (e.g., printers, scanners).
  • Solid understanding of mobile application architecture, security, and deployment practices.
  • Familiarity with mobile CI/CD tools and OTA update strategies.
  • Understanding of PCI-DSS or other compliance requirements.

- Familiarity with AIDL, Android Services, and low-level device communication. - Excellent problem-solving skills, with the ability to debug complex issues - Strong communication and documentation skills.

  • Experience working in Agile teams and using tools like Jira, Git, and GitHub Actions.
  • Experience integrating with Nigerian payment industry players, including NIBSS, Interswitch, and Unified Payment Services Limited.


Nice to Have:

  • Experience with React Native (if Flutter is not available).
  • Bachelor's degree in Computer Science or related field


What We Offer:

  • Competitive salary and benefits package
  • Opportunity to work on high-impact fintech and POS solutions
  • Collaborative and dynamic work environment
  • Professional development and growth opportunities
  • Exposure to cutting-edge technologies and device platform


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