Senior Fullstack Engineer

$30 - $120/hourpay

Required Skills

advanced frontend
React
performance
state management
backend design
APIs
scalability
authentication
Databases
Adobe InDesign
optimization
System design
architecture
tradeoffs
DevOps basics
CI/CD
deployment
monitoring
About micro1
micro1 connects domain experts to the development of frontier AI models. Real-world expertise is turned into training data, evaluations, and feedback loops that improve how models perform. AI labs and enterprises use micro1 to train models and build reliable AI agents through advanced evaluations and reinforcement learning environments. Experts contribute directly to how AI systems learn, reason, and perform across domains like finance, healthcare, engineering, and more. Our platform identifies and vets top talent through an AI recruiter, enabling high-quality contributions at scale.
Our goal is to enable 1 billion people to do meaningful work by applying their expertise to AI. We’ve raised $40M+ in funding, and our AI recruiter has powered over 1 million AI-led interviews as our global network of experts grows into the human intelligence layer for AI.

Job Description

Job Title: Senior Fullstack Engineer


Job Type: Contractor


Location: Remote


Job Summary: In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input. No prior experience in AI is required — your domain knowledge is what matters.


Key Responsibilities:

• Architect and develop robust, scalable applications leveraging 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 supporting complex business logic and high traffic.

• Drive CI/CD, deployment processes, and basic DevOps tasks to streamline releases and maintain system health.

• Leverage Adobe InDesign for integration or automation within product workflows, ensuring outstanding end-user results.


Required Skills and 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.

Apply now

Please note that after completing the interview process, you’ll be added to our talent pool and considered for this and other roles that match your skills.

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