MercorVerified Source
RemoteSoftware EngineeringAI & Machine Learning

UK Based Software Engineers (COBOL) | $130-$170/hr Remote

$130–$170/hr
Posted July 2, 2026
hourly
6 openings

Overview

We're seeking seasoned software engineers based in the U.K. to join a remote, project-based initiative with a leading AI research lab. In this role, you'll apply your expertise in COBOL to help generate high-quality training data for frontier AI models. This is a high-impact contract position offering a competitive hourly rate of $130–$170/hr and the chance to work alongside top-tier engineers.

What You'll Do5

  • 1Develop and curate training data for cutting-edge AI systems, leveraging your COBOL skills to ensure accuracy and relevance.
  • 2Collaborate closely with a team of senior engineers on research tasks, providing code reviews and technical feedback.
  • 3Work on a fully remote, project basis with a full-time commitment of 40 hours per week.
  • 4Participate in the vetting process by completing a resume review and a short technical assessment focused on engineering expertise.
  • 5Contribute to the design of data generation pipelines and document technical processes for reproducibility.

Requirements5

  • 1Proven hands-on experience with COBOL programming in professional settings.
  • 2At least 5 years of full-time software engineering experience, with a track record of delivering high-quality code.
  • 3Previous work experience at a major tech company (e.g., Slack, Notion, Stripe, Figma) is strongly preferred.
  • 4Currently based in the United Kingdom and eligible to work remotely.
  • 5Ability to dedicate 40 hours per week to a project-based engagement.

Who Should Apply

This role is ideal for experienced COBOL engineers with a background in big tech who enjoy working on challenging, project-based assignments. You should be comfortable collaborating remotely, have a strong command of software engineering fundamentals, and be excited about contributing to the next generation of AI systems.

Salary Insight

The position pays an hourly rate of $130–$170/hr, with payment terms for a remote project contract.

Application Tip

When applying, emphasize your COBOL expertise and any experience you have working on data-intensive projects. Also, prepare for the technical assessment by reviewing core software engineering concepts—your ability to think clearly under time constraints will be key.

Share:

Similar open positions

Explore active roles that match your skills and interests.

Mercor

5d agoRemotehourly

COBOL Programming Expert | $100-$200/hr Remote

A leading AI research lab is seeking seasoned COBOL engineers for a short-term, high-impact engagement. You'll evaluate how well advanced AI systems handle real-world mainframe tasks—specifically around database migration—by benchmarking roughly 100 code-intensive scenarios. Your expert assessments will directly guide how AI models learn to operate on the backbone of global banking and government systems.

$100–$200/hr
· 26 openings

Micro1

5d agoRemote
Hot

Senior Software Engineer | $50-$100/hr Remote

We are looking for experienced software engineers to contribute to training next-generation AI systems by building reinforcement learning environments. You'll use your deep coding skills to create challenges that test an AI's ability to fix bugs, implement features, refactor code, and optimize performance. No prior AI experience is required—your software engineering expertise is what matters. This is a remote contract role averaging about 15 hours per week.

$50–$100/hr
· 100 openings
Python3JAVARust+7 more

Micro1

15d agoRemote
Hot

Senior Software Engineer | $100-$230/hr Remote

Join a team that's shaping the next generation of AI by building and evaluating reinforcement learning environments. As a Senior Software Engineer, you'll apply your deep coding expertise to create reproducible challenges that test an AI's ability to solve real-world software problems — from bug fixes to feature development. No prior AI background required; your engineering skills are what count.

$100–$230/hr
· 20 openings
Python3JAVARust+7 more

Micro1

16d agoRemote

Software Engineer | $50-$100/hr Remote

This isn't your typical software engineering role—you'll apply your coding expertise to shape how next-generation AI systems learn and reason. Your day-to-day work involves building robust backend and frontend systems that provide high-quality training data for AI models. You don't need prior AI experience; your strong engineering foundation is what matters most.

$50–$100/hr
· 10 openings
JavaJavaScriptPython+17 more

Micro1

4h agoRemote
Hot

Senior Software Engineer | $50-$100/hr Remote

This role is a unique opportunity to apply your software engineering expertise to train next-generation AI systems. You'll design and build Reinforcement Learning environments that test how models solve complex coding challenges, using MCP (Model Context Protocol) tools. No AI background is required — your deep coding skills and problem-solving instincts are what matter most.

$50–$100/hr
· 100 openings
Python3JAVARust+7 more

Mercor

18d agoRemotehourly

UK-Based Accounting Specialists | $190-$210/hr Remote

A leading frontier AI lab is collaborating with Mercor to find skilled UK-based accounting professionals for a high-impact contract project. You'll put your ASC 606 expertise to work creating and evaluating complex revenue recognition scenarios that help train advanced AI models. This remote role offers top-tier hourly pay and the chance to influence cutting-edge technology.

$190–$210/hr
· 8 openings