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Posted Apr 12, 2026

Senior Flutter Engineer (part-time)

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N-iX is a global software development service company that helps businesses across the globe create next-generation software products. Founded in 2002, we unite 2,400+ tech-savvy professionals across 40+ countries, working on impactful projects for industry leaders and Fortune 500 companies. Our expertise spans cloud, data, AI/ML, embedded software, IoT, and more, driving digital transformation across finance, manufacturing, telecom, healthcare, and other industries. Join N-iX and become part of a team where your ideas make a real impact. Our client is a leading innovator in the U.S. market, creating cutting-edge, high-end smart beds engineered for superior performance.  We are looking for a Senior Flutter Developer who is technically proficient, proactive, and excels in collaborative environments. Responsibilities: - Collaborate closely with the development team to design and implement high-quality software solutions using Flutter technologies - Develop, test, and maintain mobile applications that meet internal and external client expectations - Analyzing and improving application performance  - Bug fixing  - Ensure code quality, performance, and scalability through continuous improvement and best practices Requirements: - Proven experience in mobile development with Flutter and Dart - Experience working with IoT project - Experience working with CoreData, Realm, Firestore, Supabase PostgreSQL - Knowledge of operating system Android, iOS, Windows, macOS - Knowledge of tools and technologies GitHub Actions, Jenkins, Git, GitHub, GitLab, RESTful APIs,  Postman - Fluency in English language for effective communication - Ability to work part-time (10-20 hours/week), ideally with at least 2-hour overlap with US time zones We offer*: - Flexible working format - remote, office-based or flexible - A competitive salary and good compensation package - Personalized career growth - Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more) - Active tech communities with regular knowledge sharing - Education reimbursement - Memorable anniversary presents - Corporate events and team buildings - Other location-specific benefits *not applicable for freelancers