Backend Engineer
$50 - $120/hourpay
Required Skills
Python
Node.js
.NET
C#
C++
PHP
Wordpress
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: Back-End Engineer
Job Type: Contractor
Location: Remote
Job Summary:
Join our customer’s team as a Back-End Engineer and play a pivotal role in shaping the future of AI.
You'll train AI models on designing, developing, and maintaining robust server-side solutions for complex and creative software projects. We are seeking an expert-level engineer with a passion for clean code, well-architected systems, and seamless collaboration across remote teams.
Key Responsibilities:
- Design, implement, and optimize server-side logic and APIs using Python, Node.js, .NET, C#, C++, PHP, Wordpress, etc.
- Collaborate with front-end developers, designers, and stakeholders to deliver end-to-end, scalable web applications and software solutions.
- Develop and maintain database structures, ensuring data integrity, security, and high performance.
- Troubleshoot, debug, and refactor existing code to improve maintainability and reliability.
- Contribute to architectural decisions and technical documentation for new and existing projects.
- Implement testing strategies to ensure code quality and coverage for mission-critical applications.
- Stay updated on industry best practices and emerging technologies, sharing insights with the team.
Required Skills and Qualifications:
- Minimum 3 years of hands-on experience building complex or creative back-end systems and web applications.
- Expertise in Python, Node.js, .NET, C#, C++, PHP, or WordPress development.
- Strong grasp of object-oriented programming, RESTful API design, and server architecture.
- Proficiency in database management (SQL and NoSQL), data modeling, and optimization techniques.
- Exceptional written and verbal communication skills, with a strong emphasis on collaboration in distributed teams.
- Solid knowledge of version control systems such as Git.
- Demonstrable problem-solving skills and attention to detail in code and documentation.
Preferred Qualifications:
- Experience contributing to open source projects or delivering solutions used at scale.
- Background in DevOps, containerization, or automated CI/CD pipelines.
- Previous work on highly creative or unconventional software or website projects.