Backend Engineering Specialist (Full Time)
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CodePath is dedicated to reprogramming higher education to cultivate AI-native engineers, CTOs, and founders. They deliver industry-vetted courses and career support, prioritizing the needs of first-generation and low-income students. Their graduates train
Peregrine Technologies, backed by Silicon Valley investors, empowers public safety agencies nationwide with technology that improves operations and decision-making. Serving over 80 million Americans, they partner closely with customers to develop effective
Fitmate Coach is on a mission to make weight loss support truly work for people by providing 1:1 motivational coaching. Their approach blends human coaches with AI, enabling personalized, high-frequency support. As a Founding Engineer, you will own the pro
Peregrine Technologies, backed by leading Silicon Valley investors, supports public safety agencies across the country by providing technology solutions that improve operations and decision-making. They serve over 80 million Americans, focusing on creating
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Mercor
Job Description
Mercor is a global talent marketplace connecting top experts with leading AI research and development organizations. They are partnering with a leading AI research group to engage experienced software engineers for a project focused on training and refining large language models (LLMs). As a Backend Engineering Specialist in the Human Data Team, you will help shape the next generation of AI systems by curating advanced coding datasets, benchmarking model outputs, and enhancing model reasoning about programming practices.
In this full-time role, you’ll collaborate with technical teams to teach AI models how humans write, debug, and optimize code across multiple programming languages. You’ll annotate and evaluate AI-generated code for efficiency, scalability, and reliability, ensuring it meets enterprise-level software development standards. Tasks include contributing data in text, voice, or video formats to help models learn from human expertise.
This is an opportunity for engineers passionate about applying coding and problem-solving skills to advance frontier AI systems, offering a competitive salary range of $90,000 to $200,000 per year, depending on experience and location. Benefits vary by country.
Responsibilities
- Curate code examples, provide detailed solutions, and make precise corrections across programming languages such as Python, JavaScript (including ReactJS), C/C++, Java, Rust, and Go
- Evaluate and refine AI-generated code, ensuring adherence to industry standards for efficiency, scalability, and reliability
- Collaborate with cross-functional teams to enhance AI-driven coding solutions and benchmark LLM performance
- Support training initiatives by improving annotation tools, workflows, and data quality
- Contribute to developing coding tasks and datasets that challenge model reasoning and technical understanding
Requirements
- 5+ years of professional back-end development experience
- Proficiency in multiple server-side languages such as Python and Node.js
- Strong experience designing and implementing RESTful APIs and GraphQL endpoints
- Hands-on experience with both relational databases (PostgreSQL, MySQL) and non-relational databases (MongoDB, Redis)
- Deep understanding of database optimization, indexing, and query performance
- Strong grasp of web security principles, including authentication, authorization, and data protection
- Experience with asynchronous processing and background job systems
- Proficiency with testing frameworks for unit, integration, and end-to-end testing
- Adaptable and detail-oriented professional with strong logical reasoning and problem-solving skills
- Experience with containerization technologies (Docker)
- Familiarity with front-end technologies such as TypeScript or React to facilitate effective cross-functional collaboration
Visa Policy
Mercor isn't offering any visa sponsorship support at this time.
