SaidGig

Senior Fullstack Engineer

$30–$120/hr

RemoteContracttechnologyUpdated Jun 9, 2026
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About this role

As a Senior Fullstack Engineer, you will play a crucial role in shaping the future of AI systems by applying your technical expertise to develop robust applications that enhance how models learn and perform. Your contributions will directly impact the quality of training data and evaluations, making your domain knowledge invaluable.

Key Responsibilities:
  • Architect and develop scalable applications using React and modern fullstack frameworks.
  • Optimize application performance through advanced state management and frontend best practices.
  • Design and implement efficient backend APIs, ensuring secure authentication and data integrity.
  • Collaborate on system design decisions and evaluate architectural tradeoffs for scalability and maintainability.
  • Integrate and optimize database solutions that support complex business logic and high traffic.
  • Drive CI/CD, deployment processes, and basic DevOps tasks to streamline releases and maintain system health.
  • Utilize Adobe InDesign for integration or automation within product workflows, ensuring outstanding end-user results.
Qualifications:
  • Proven experience in advanced frontend development with React, focusing on performance and state management.
  • Strong expertise in backend system design, building APIs, and understanding authentication mechanisms.
  • Deep knowledge of database architecture, optimization, and scalable application patterns.
  • Demonstrated ability to optimize large-scale systems, identifying and resolving performance bottlenecks.
  • Familiarity with DevOps fundamentals, including CI/CD pipelines, system monitoring, and deployment automation.
  • Experience with Adobe InDesign integration or workflow optimization.
  • Solid foundation in software architecture and evaluating tradeoffs during system design.
Preferred Qualifications:
  • Experience working in distributed or fully remote engineering teams.
  • Prior involvement in projects requiring extensive scalability or advanced optimization strategies.
  • Knowledge of modern security and authentication practices beyond standard implementations.
Work Terms:

Contract position with remote work flexibility.

Compensation:

Hourly rate ranging from $30 to $120.

Eligibility:

No prior experience in AI is required; your domain knowledge is what matters.

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