Principal Mobile Developer Flutter Jobs (NOW HIRING)

Job#: 3049462
Job Description:
Apex Systems, a World-Class Technology Solutions Provider, is seeking applicants for the below position on behalf of our client. Please apply if interested and qualified. Note that only qualified candidates will be contacted.
Position Details:
Position: Senior Flutter Developer
Rate: $75.00-$85.00/ hr
Location: Orlando, FL - Hybrid onsite 2 days
Job Summary
As a Senior Software Engineer on this team you will play a key role in building innovative mobile experiences that enhance the guest journey onboard and across the client's ecosystem. This is a hands-on engineering role focused on designing, developing, and delivering high-quality mobile applications using modern frameworks. You will work in a highly collaborative Agile environment alongside product managers, designers, QA, and backend teams to bring features to life. This role requires strong technical ownership, a proactive mindset, and the ability to contribute to architectural decisions, performance optimization, and continuous improvement of delivery processes.
Key Responsibilities

• Own the design, development, and delivery of mobile application features, enhancements, and new systems.
• Build and maintain mobile applications primarily using Flutter (Dart), with a focus on performance, scalability, and user experience.
• Collaborate with product managers, business analysts, and designers to define requirements, estimate work, and prioritize development.
• Partner with backend teams to integrate and consume APIs, ensuring strong data contracts and system reliability.
• Participate in code reviews, software design discussions, and architectural alignment with engineering teams.
• Identify and resolve defects, optimize application performance, and ensure high-quality production releases.
• Contribute to CI/CD pipelines, release management, and improvements in delivery processes.
• Explore and pilot new technologies to enhance development efficiency and product capabilities.
• Work across distributed teams (onshore/offshore) to deliver features in a fast-paced Agile environment.

Required Qualifications

• Bachelor's degree in Computer Science, Engineering, or equivalent practical experience.
• 5+ years of professional software development experience, with a strong focus on mobile development.
• At least 1+ year of Flutter (Dart) experience in a production environment.
• Experience working within an Agile team (Scrum or Kanban) alongside product, QA, and design partners.
• Strong proficiency in TypeScript and experience with backend technologies (e.g., NestJS, Node.js).
• Experience integrating with RESTful APIs and working with JSON data.
• Understanding of networking concepts such as HTTP, Bluetooth, RFID, or socket-based communication.
• Experience with cloud platforms (AWS) and distributed systems.
• Knowledge of NoSQL databases and modern data handling approaches.
• Familiarity with containerized environments (e.g., Docker, Kubernetes).

*Please note that as a contract employee of Apex Systems, you'd be eligible for Health, Dental, Vision and Life Insurance; Short Term Disability; Hospitalization Coverage; 401k plans, Direct Deposit; Weekly Pay Periods; Training and Development Programs; and our Referral Program.
**Due to the number of applications received please note that only well qualified candidates will be contacted further**
Everforth Apex is a world-class IT services company that serves thousands of clients across the globe. When you join Everforth Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRateds Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico.
Everforth Apex uses a virtual recruiter as part of the application process. Click for more details. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Everforth Apex and its affiliates, and contracted partners. Frequency varies for text messages. Message and data rates may apply. Carriers are not liable for delayed or undelivered messages. You can reply STOP to cancel and HELP for help. You can access our privacy policy at
Everforth Apex Benefits Overview: Everforth Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Everforth Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our 'Welcome Packet' as well, which an Everforth Apex team member can provide.
Everforth Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.
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