Software engineer • springfield il
Role Overview** Mercor is seeking experienced **C engineers** to build the dataset that teaches AI agents to reason about real codebases.Codebase Q&A is a reinforcement-learning environment for tra... Show more
We are seeking an experienced Manufacturing Engineer to improve manufacturing processes and quality systems for an established organization focused on safety, quality, and continuous improvement.Th... Show more
AI data lab for training frontier models and evaluating AI agents.Experts contribute their diverse subject matter knowledge across domains such as finance, healthcare, STEM engineering, and more.AI... Show more
Business Intelligence (BI) Business Objects/SQL Developer.Telecommute (with occasional travel to Springfield, IL).We are seeking a skilled and experienced BI BusinessObjects/SQL Developer to design... Show more
We're seeking experienced Software Engineers, QA Engineers, SDETs, and Test Automation Engineers to review browser-based evaluation workflows for AI-generated web applications.You'll validate wheth... Show more
Role Overview** Mercor is seeking experienced **Python engineers** to build the dataset that teaches AI agents to reason about real codebases.Codebase Q&A is a reinforcement-learning environment fo... Show more
We are looking for engineers who build and operate LLM agents in production, and who have real visibility into how agents are actually used inside a company.You have probably: - Shipped an agent th... Show more
Mercor’s Talent Success team is hiring! Our Talent Success team is responsible for ensuring everyone using our platform has a delightful experience end to end, from applying to job listings, taking... Show more
The primary work location for this role is Berwyn, Raleigh, Boston, Chicago, or Seattle with a hybrid work model.Envestnet is an adaptive WealthTech company that is redefining the future of wealth ... Show more
We're looking for engineers who have shipped production search systems (especially agentic ones now that we're in the era of LLMs and agents) and are thinking hard about the requirements and optimi... Show more
Senior Manager, Software Engineering.We're building a world of health around every individual shaping a more connected, convenient and compassionate health experience.At CVS Health, you'll be surr... Show more
Technical Ownership of BI Solutions Leads technical design and implementation within agreed architecture and design standards.Design Authority & Best Practice Contributes to the desig... Show more
Project Engineer Job Duties: Completes engineering projects by organizing and controlling projec... Show more
Hampton, Lenzini and Renwick, Inc.HLR) of Springfield, IL is looking to hire a full-time Structural Engineer.Are you a civil engineering professional who is ready to take your career to the next le... Show more
AI data lab for training frontier models and evaluating AI agents.Experts contribute their diverse subject matter knowledge across domains such as finance, healthcare, STEM engineering, and more.AI... Show more
About the role We are hiring expert Evaluators in **Software / AI / IT / data** to review and assess AI-generated work products (documents, spreadsheets, and slide decks) for accuracy, rigor, and d... Show more
Overview**We're looking for audio engineers with strong experience editing and quality-checking **voice recordings for speech and text-to-speech (TTS) applications**, specifically for **French-lang... Show more
Role Overview** Mercor is seeking experienced **Go engineers** to build the dataset that teaches AI agents to reason about real codebases.Codebase Q&A is a reinforcement-learning environment for tr... Show more
A fantastic and well established manufacturing company in central Illinois is seeking an Engineering/CNC Manager to lead engineering/CNC operations and drive continuous improvement initiatives acro... Show more
The average salary range is between $ 102,500 and $ 184,846 year , with the average salary hovering around $ 138,533 year .
The average salary range is between $ 99,998 and $ 165,955 year , with the average salary hovering around $ 123,464 year .
## **1\. Role Overview** Mercor is seeking experienced **C engineers** to build the dataset that teaches AI agents to reason about real codebases. Codebase Q&A is a reinforcement-learning environment for training AI agents to explore and reason about software repositories they have never seen before. You will build difficult codebase-exploration tasks: high-level engineering questions about foundational C systems that cannot be answered by reading a single file, and that require runtime evidence to resolve — the kind of question a senior engineer answers by actually investigating the system. This track works on some of the most consequential C codebases in production anywhere: **PostgreSQL, Redis, git, OpenSSH, OpenSSL, curl, libuv, libgit2, libarchive, Open vSwitch, tcpdump, tmux and zstd**. Contract, task-based work paid at **$130 per approved task**, performed remotely in Mercor Studio. ## **2\. Key Responsibilities** - Select tasks from a pre-validated pool of C repositories, each pinned to a specific git commit and arriving with an engineering question, positive and negative rubrics, foils, and a golden solution - Explore the repository until you genuinely understand the subsystem in question, including the relevant PR or issue history - Rewrite the task's question so it defeats frontier coding agents while remaining well-defined and fairly answerable - Adjust rubrics and foils so they reward correct reasoning and reject plausible-but-wrong answers - Run the full validation loop in Studio — Check, Golden, Run, Analyze — and iterate until every stage passes - Document your work in the task README and submit for expert review, addressing reviewer feedback on returned tasks ## **3\. Ideal Qualifications** - 3+ years of professional software engineering experience, with substantial production C - Demonstrated ability to navigate a large, unfamiliar C codebase and explain how it behaves at runtime — not just what the source says - Comfort with the things that make C systems hard to read: preprocessor-heavy builds, platform conditionals, manual memory management, and autotools/CMake/Meson build graphs - Experience with databases, cryptography, networking protocols, or systems programming is highly relevant — the task mix is weighted toward architecture and system design (39%) and code onboarding (34%), with a meaningful security slice - Ability to use debuggers, sanitizers, tracing, and profilers to establish what the code actually does - Precise written English: the questions and rubrics you write are the product ## **4\. Working Details** - Fully remote and asynchronous, with expert team leads across US, India, and Nigeria time zones - Work is performed in Mercor Studio; time is tracked with Insightful, and platform access is provisioned through Okta - Onboarding requires identity verification, a background check, signed Terms of Work and CIIAA, a tax form, and passing a short calibration quiz before task access is granted - Payment is per approved task; every task is reviewed by a second engineer and a super reviewer before acceptance ## **5\. Application Process** - Submit your resume or relevant technical background to get started - Qualified applicants may be asked to complete a brief technical assessment or provide additional information
