(Contractor) Senior Lead Flutter/Dart Mobile Engineer

Posted Yesterday
Be an Early Applicant
Hiring Remotely in United States
Remote
Senior level
Artificial Intelligence • Information Technology • Software
Sparq is an AI-native digital engineering services firm that re-engineers the systems businesses run on
The Role
Lead development of production-grade Flutter and Dart mobile applications, including shared offline capabilities, local persistence, background synchronization, conflict resolution, data-age safeguards, and reliability testing. Provide technical leadership through code reviews, troubleshooting, mentoring, and collaboration while leveraging AI tools such as Claude and Claude Code. Ensure performance and compatibility across devices and operating systems and oversee delivery of scalable, maintainable mobile solutions.
Summary Generated by Built In

At Sparq, we help companies solve the right problems—not just build more technology.


We’re a modern product engineering partner blending strategy, craftsmanship, and speed to help organizations modernize confidently in the age of AI. From data ecosystems to digital products and AI acceleration, we turn complexity into clarity and ideas into impact.


If you’re driven to build what’s next, lead with empathy, and deliver excellence without ego, you’ll feel right at home at Sparq.


C2C is not available

Must be authorized to work in the U.S. without sponsorship

A Day in the Life:

  • Design, develop, and maintain production-grade mobile applications using Flutter and Dart, with a focus on reliability, performance, and offline functionality.
  • Lead the development of a shared offline package that supports local caching, queued operations, background synchronization, and connectivity state management.
  • Integrate shared offline capabilities into Workforce Tools and WFHQ, ensuring consistent functionality and data handling across both applications.
  • Implement local data persistence and background synchronization strategies that allow applications to function reliably during intermittent or extended periods of lost connectivity.
  • Develop offline-first conflict resolution strategies to manage data synchronization, maintain data integrity, and address discrepancies between locally stored and server-side information.
  • Build intuitive data-age indicators and safeguards that prevent users from performing unsafe actions when application data is stale or connectivity is limited.
  • Leverage hands-on experience with Claude and Claude Code to support mobile development, troubleshooting, code optimization, and testing activities.
  • Develop and execute comprehensive unit and integration tests covering offline functionality, application restarts, synchronization recovery, and extended offline scenarios.
  • Validate application performance and reliability across various devices and operating system versions, identifying and resolving compatibility issues.
  • Provide technical leadership through code reviews, troubleshooting, and collaboration with engineering teams to deliver scalable, maintainable mobile solutions.

What it takes:

  • Consultative approach and problem solving skills to successfully align digital solutions with long-term business goals of the client
  • Hands-on experience using AI tools to enhance daily work, or a strong desire to do so, including a willingness to experiment, learn, and champion AI adoption within your role
  • Claude Certified Developer or Architect highly preferred; possible opportunity to obtain as a Sparq colleague
  • Commitment to understanding and exceeding client expectations
  • Ability to perform project oversight and execution of deliverables
  • Flexibility to adapt within a high-growth organization
  • Ability to lead, mentor and motivate those around them
  • Hunger for continuous learning and professional development
  • Intellectual curiosity to provide creative solutions
  • Full understanding of the software development life cycle
  • Ability to positively impact fellow colleagues through effective leadership, presentations, coaching, etc.
  • Desire to work in a team environment
  • Good interpersonal, written and verbal communication skills

Regardless of your specific role, we seek individuals who are excited to explore, adopt, and evangelize AI tools and methodologies. If you have experience in AI or a proven track record of rapidly learning and mentoring others on emerging tech, you’ll fit right in.


Equal Employment Opportunity Policy: Sparq is proud to offer equal employment opportunity without regard to age, color, disability, gender, gender identity, genetic information, marital status, military status, national origin, race, religion, sexual orientation, veteran status, or any other legally protected characteristic.


We are committed to providing equal employment opportunities and believe in an inclusive workplace. If you require reasonable accommodations to participate in the job application or interview process, please let us know by contacting [email protected]




#LI-REMOTE

Skills Required

  • Hands-on experience developing production-grade mobile applications using Flutter and Dart
  • Experience with offline functionality, local data persistence, background synchronization, and connectivity management
  • Experience developing offline-first conflict resolution strategies and data integrity safeguards
  • Experience using AI tools to enhance daily work, or strong willingness to experiment with and champion AI adoption
  • Consultative problem-solving skills aligned with long-term client business goals
  • Ability to oversee projects and execute deliverables
  • Ability to lead, mentor, and motivate colleagues
  • Full understanding of the software development life cycle
  • Ability to provide leadership through presentations, coaching, code reviews, and collaboration
  • Strong interpersonal, written, and verbal communication skills
  • Claude Certified Developer or Architect certification
  • Commitment to client expectations, continuous learning, adaptability, teamwork, and creative problem solving

Sparq Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Sparq and has not been reviewed or approved by Sparq.

  • Leave & Time Off Breadth — PTO with floating holidays and seven U.S. holidays is part of the package, and flexibility around taking time off is highlighted positively. These elements support work–life balance for many roles.
  • Retirement Support — A 401(k) program is offered and some postings reference a company match. This provides baseline long‑term savings support even though specific match details are not publicly listed.
  • Inclusive Benefits Coverage — Participation in LGBTQ+ inclusion benchmarks and the presence of colleague resource groups signal attention to inclusive policies and benefits. External recognitions further reinforce a focus on equitable workplace practices.

Sparq Insights

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The Company
HQ: Atlanta, GA
723 Employees

What We Do

Sparq is an AI-native digital engineering services firm that re-engineers the systems businesses run on, turning operational bottlenecks into margin, throughput, and decision speed. We work alongside operators, architects, and engineering and business leaders to modernize critical technology, connect fragmented intelligence, and put AI to work where it can have the greatest impact on business performance. Sparq accelerates delivery with proven engineering patterns and production-tested AI components. Everything is validated first in The Shop, Sparq's internal practice that stress-tests new approaches under production-like conditions, then applied through Intelligence Studio, Sparq's applied AI foundation, which embeds them into a client's existing workflows. The result is reduced implementation risk and a shorter time to value. The combination has unlocked more than $90 million in margin for an enterprise mobility client, cut $220 million in operating costs for a leading logistics company, and moved new AI capability from concept to production in under 20 days across multiple engagements.

Why Work With Us

Sparq holds Snowflake Elite Partner, Snowflake CoCo Preferred Partner, and AWS Advanced Tier Services Partner status, serving Fortune 1000 and enterprise clients across transportation & logistics, real estate & construction, and financial services & insurance. Sparq is headquartered in Atlanta, Georgia, with delivery teams across the U.S. & Latam.

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