Software Engineer / Backend Developer (Junior / Senior)

Mercor
Charing Cross, United Kingdom
2 days ago

Role details

Contract type
Permanent contract
Employment type
Part-time (≤ 32 hours)
Working hours
Regular working hours
Languages
English
Experience level
Junior
Compensation
£ 166K

Job location

Charing Cross, United Kingdom

Tech stack

Java
API
Artificial Intelligence
Software Documentation
Code Generation
Data Validation
Software Design Patterns
Python
Backend
Go
Programming Languages

Job description

Mercor is partnering with a leading AI research group to enhance the performance and reliability of code generation and reasoning models. We're seeking experienced software engineers with a strong foundation in backend systems, documentation standards, and real-world programming constraints. This project centers on evaluating and improving AI-generated technical content - including API guides, code snippets, and documentation. This is a short-term, high-impact opportunity ideal for engineers who value clarity, correctness, and practical problem-solving., * Review and validate AI-generated API documentation, guides, and design notes

  • Identify edge cases, implementation gaps, and inaccuracies in technical outputs
  • Suggest or write improved code snippets and documentation content
  • Assess model responses for correctness, clarity, and utility in real-world development
  • Provide structured feedback on input validation and error handling logic

Requirements

Do you have experience in Python?, * 2+ years of experience as a software engineer with a focus on backend or systems work

  • Proficiency in at least one major programming language (e.g., Python, Go, Java)
  • Prior experience writing or maintaining technical documentation or API guides
  • Strong understanding of input validation, defensive programming, and software design patterns
  • Excellent written communication and analytical skills

Benefits & conditions

  • Remote and asynchronous - set your own schedule
  • Expected commitment: ~10-20 hours/week
  • Short-term contract engagement, with potential for follow-on work
  • Tools and templates provided for structured contributions
  1. Compensation & Contract Terms
  • $80/hour
  • U.S.-based
  • Payments issued weekly via Stripe Connect
  • You'll be classified as an independent contractor

About the company

7. About Mercor * Mercor is a talent marketplace that connects top experts with leading AI labs and research organizations * Our investors include Benchmark, General Catalyst, Adam D'Angelo, Larry Summers, and Jack Dorsey * Thousands of professionals across domains like law, creatives, engineering, and research have joined Mercor to work on frontier projects shaping the next era of AI

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