Senior Software Engineer

Job not on LinkedIn

🔥 1 minute ago

🌐 United States, United Kingdom, +3 more countries – Remote

🇺🇸 United States – Remote 🇬🇧 United Kingdom – Remote 🇨🇦 Canada – Remote 🇦🇺 Australia – Remote 🇳🇿 New Zealand – Remote

💵 $120 - $180 / hour

⏳ Contract/Temporary

🟠 Senior

🧑‍💻 Full-stack Engineer

👻 Ghost score 11%

What it means: the chance that no one is really hiring for this job.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Mercor

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2023

💰 $350M Series C - Mercor on 2025-10

Mercor is a company for which no descriptive text was provided in the input. Additional information (products, services, target customers, or industry specifics) is needed to create an accurate summary and select appropriate industries.

📋 Description

• Design realistic, challenging software engineering tasks based on real-world work • Create tasks involving feature changes, debugging, root-cause analysis, code review, system design, architecture decisions, codebase Q&A, and technical documentation and planning • Write clear task proposals explaining realism, verification, and difficulty for current AI models • Write reference solutions, tests, and precise task-specific criteria covering correctness, architecture, maintainability, style, and scope • Assess AI-generated code and engineering work • Work alongside AI coding agents to evaluate their strengths and weaknesses • Apply consistent, evidence-based judgment to produce reproducible and defensible assessments • Receive structured feedback from senior reviewers and iterate on submitted work • Train and evaluate frontier AI models using software engineering expertise

🎯 Requirements

• 4+ years of professional software engineering experience • Experience at a leading technology or quantitative firm, top financial institution, or high-growth household-name technology company • Mid-senior or senior-level title where applicable • Machine Learning, Infrastructure, Data, Security, and Quant Developer engineering experience may qualify • Strong command of at least one major language such as Python, Java, C++, Go, TypeScript, or Rust • System design, testing, debugging, and code review experience • Ability to work in large, complex production codebases • Ability to judge code quality beyond whether tests pass • Excellent written English and ability to explain technical decisions and trade-offs clearly • Bachelor's degree from an English-speaking country • Detail-oriented and consistent approach to evaluating complex work • Comfortable receiving feedback and calibrating judgment against set standards • Must not require H1-B or STEM OPT support

🏖️ Benefits

• Fully remote role • Flexible own schedule • Weekly payments via Stripe or Wise • Independent contractor engagement • Projects may be extended, shortened, or concluded early depending on needs and performance • Competitive pay • Collaboration with leading researchers • Opportunity to help shape the next generation of AI systems • Reasonable accommodations upon request

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