Senior Backend Developer

Required Skills

Python
Flask
MySQL
Django
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 Backend Developer

Job Type: Part-time

Location: Remote

Job Summary:

We are seeking a highly skilled Senior Backend Developer to become a key contributor within our customer's team. As a core team member, you will design, build, and optimize robust backend systems using Node.js, Python, and JAVA. If you are passionate about clean code, modern backend technologies, and effective communication, we would love to connect with you.

Key Responsibilities:

  • Architect, develop, and maintain scalable backend services and APIs
  • Collaborate with frontend and cross-functional teams to deliver seamless product experiences
  • Ensure optimal performance, security, and reliability of backend systems
  • Identify, troubleshoot, and resolve complex technical issues in a timely manner
  • Participate in code reviews and provide constructive feedback to teammates
  • Document technical designs, processes, and system integrations clearly
  • Actively contribute ideas and solutions during team discussions and planning

Required Skills and Qualifications:

  • 5+ years of hands-on experience with backend development
  • Expertise in Node.js, Python, and JAVA
  • Strong understanding of RESTful API design and implementation
  • Proven experience working with modern database systems (SQL and NoSQL)
  • Excellent written and verbal communication skills, able to articulate complex concepts simply
  • Ability to thrive in a distributed, remote work environment
  • Proactive mindset with a keen attention to detail and quality

Preferred Qualifications:

  • Familiarity with cloud-based infrastructures (AWS, GCP, or Azure)
  • Experience with containerization and orchestration (Docker, Kubernetes)
  • Background in Agile or Scrum development methodologies

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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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