Software Development Engineer / Freelance
Mercor
Mercor is hiring experienced Software Engineers to support high-impact research collaborations with leading AI labs. Freelancers will contribute to building training datasets that improve AI model reasoning and problem-solving on real-world coding tasks.
This is a unique opportunity to apply your software engineering expertise toward shaping the next generation of intelligent systems.
About The Project
Review model-generated code trajectories on realistic software engineering tasks
Use full task context (codebase, issue descriptions, test cases) to infer plausible reasoning
Ensure annotations reflect realistic developer thought processes and technical accuracy
2+ years of experience in software engineering, with hands-on debugging and problem-solving in real codebases
- Degree in Software Engineering, Computer Science, or a related field (Bachelor's minimum; Strong proficiency in Python, JavaScript, TypeScript, or other common languages found in open-source projects
- Familiarity with version control workflows (Git, PRs, issue tracking)
- Comfortable articulating technical reasoning in clear, structured writing
Project Timeline
Start Date: Immediate
Commitment: Part-time (15–25 hours/week, with flexibility up to 40 hours/week)
AI interview: Apply today and leverage your software engineering expertise to help build the future of AI-driven systems!
Vacancy posted 5 days ago
Similar jobs that could be interesting for youBased on the Software Development Engineer / Freelance in Toronto, ON vacancy
- ...transformation. Who we need Reporting to the Vice President of Engineering, we are looking for an API Software Engineering Manager to take ownership of our API... ...solutions and learn more about our clients and the trajectory of the organization illumin is firmly committed to diversity...SuggestedLong term contractFull timeInternshipWork at officeRemote workFlexible hoursShift work
$105k - $175k per year
...Learn from deep subject matter experts through mentoring and on the job coaching Summary We are looking for a hands-on Lead Software Engineer to drive day-to-day engineering quality and execution for the ElectrifiedGrid (EG) product. Reporting to the Product Tech Lead,...SuggestedPermanent employmentFlexible hours- ...term outcomes. We stay close to our customers — from leadership to engineers — and work together to solve real problems with urgency and care... ...we’re just getting started. Role Overview As a Frontend Software Engineer at Harvey, you will own and lead engineering projects...SuggestedLong term contractFull timeWork at officeRelocation package3 days per week
$140k - $180k per year
👨🏻💻 Are you the kind of engineer who enjoys building products from the ground up and owning features end-to-end? We’re hiring a Senior Software Engineer to join the engineering team of a fast-growing HR technology startup building a modern platform that helps companies...SuggestedLong term contractFull timeInternshipWork at office1 day per week- A prestigious tech company is seeking a Software Engineer II to join their Safe Ads Experiences (SAE) team. This team is building the next-generation data collection platform SPECTRA, which will shape the future of how human-labeled data is collected and used in the company...SuggestedLong term contractFull timeFixed term contractFreelance
- At Broadridge, we've built a culture where the highest goal is to empower others to accomplish more. If you’re passionate about developing your career, while helping others along the way, come join the Broadridge team. We are looking for a highly skilled and experienced Java...Manual laborWork from homeHome officeFlexible hours
$143k - $163k per year
About the role: Forter is looking for a Senior Software Engineer to develop and cultivate new products for fraud detection. More than in... ...where— but who is behind the interaction. The Forter Decision Engine finds patterns across more than one billion identities in our...Work at officeImmediate startRemote work3 days per week$70k - $115k per year
...About CMiC Headquartered in Toronto, CMiC is a software company focused on the Construction industry. We have built a comprehensive platform for construction companies to manage their most important workflows. Our customers have their choice of a SaaS or Private Hosted platform...Full timeSeasonal workNight shift- ...Now, if you were to come on board as one of our Manager, Engineering-, we’d ask you to do the following for us: You’re a fast learner... ...and you have the celebratory scars to prove it You understand Software Engineering goes far beyond code and proactively build relationships...Work at officeRemote work
- ...Team Contributes to the overall success of the Core Banking Engineering globally ensuring specific individual goals, plans, initiatives... ...Is this role right for you? In this role, you will: Ensure software reliability, observability and operational efficiency You dream...Manual labor
- ...commitment to quality and service Resourcefulness Collaboration Job Summary We are seeking a talented and motivated Senior Software Engineer to contribute to the development and evolution of our SaaS platform. This role is primarily focused on backend services and...Full timeWork at officeRemote work
- ...ID: 250903 Join a purpose driven winning team, committed to results, in an inclusive and high-performing culture. Back End Software Engineer – Cloud Modernization (Mortgage Domain) Location: Toronto, 2201 Eglinton Ave. E. Job Type: Full-Time Experience Level:...Full timeFlexible hours
$160k - $200k per year
...teams to service customers better Collaborate closely with all engineering teams to ensure consistency in understanding of technical... ...assets. Required: At least 3+ years of back-end, server-side software development Strong experience with TypeScript and Node.js...Full timeContract workInternshipWork at officeWorldwide- ...Responsibility: Innovate to solve the world's most important challenges As an Advanced Full Stack Engineer here at Honeywell, you will be responsible for developing and maintaining software applications and solutions that meet the needs of our customers. You will work on both the...
- ...The main function of a software engineer is to apply the principles of computer science and mathematical analysis to the design, development, testing, and evaluation of the software and systems that make computers work. A typical software engineer researches, designs, develops...Remote jobLong term contractFull timeFixed term contractFreelance
- Requisition ID: 253412 Join a purpose driven winning team, committed to results, in an inclusive and high-performing culture. As a Software Engineer, you will contribute to developing world-class digital solutions and user experiences, creating and sustaining systems that...Manual laborFlexible hours
- ...serving its’ various clients through scalable, cutting-edge technologies and solutions. Position Details: Position Title: Software Engineer - Full Stack Developer Salary: 100,000.00 - 120,000.00 Employment Type: Full Time, Permanent Hybrid: 3 Days a Week (...Permanent employmentFull timeWork at officeRemote work3 days per week
$139.38k - $189.38k per year
...the flexibility to do your best work. Creating a career you love? It’s Possible. We are looking for inquisitive, well-rounded iOS engineers to join our [Platform / Product] engineering teams. Working closely with product managers, designers, and backend engineers, you’ll...Work at officeLocal areaRelocationRelocation package- ...and high-performing culture. The Role The Collateral Management and Funding team is looking for a result-oriented Associate Software Engineer who can work on applications that integrate with different platform and technologies The successful candidate will need to work...Flexible hours
- Position Description: Senior Software Engineer Reporting to: Director of Software Engineering Signal 1 helps health systems accelerate AI adoption with a category defining technology platform. Signal 1’s first product, the AI Management System (AIMS), gives health system...Internship
- ...manufacturing problems in products and equipment inspection, production efficiency, safety, and more. What You'll Do As a Software Engineer at Maneva, you will focus on building, deploying, and supporting AI software systems that power customer-facing deployments. You...Immediate startRemote work
$130k per year
...opportunities with our team in Toronto. We are looking for lead software developers to design, develop, and deliver enterprise-level applications... ...show who we are. You Can Expect To As a lead software engineer, you will build custom solutions using a variety of technologies...Long term contractTemporary workInternshipLocal area- ...results, in an inclusive and high-performing culture. The Product Onboarding Team is looking for an energetic and results-oriented Software Engineer to lead the analysis, design, and implementation of a multitude of solutions to solve complex business problems for our lines of...Flexible hours
$118k - $157.5k per year
..., Collectibles and Electronics. The Native Focus Categories Engineering team is tasked with supporting and implementing all Focus Category... ...and improving our processes. The Role As an iOS Software Engineer you'll collaborate across multiple domain teams such as...Immediate start$118k - $157.5k per year
...innovators, and dreamers — and help us connect people and build communities to create economic opportunity for all. Job Title: Software Development Engineer – Federated GraphQL Platform Location: Toronto, Canada About The Team And The Role As a member of the GraphQL...Immediate startFlexible hours- ...Mercor is hiring experienced Software Engineers to support high-impact research collaborations with leading AI labs. Freelancers will contribute to building evaluation datasets that assess AI reasoning, explanation quality, and technical judgment in coding-related interactions...Part timeFreelanceImmediate start
$110k - $135k per year
We are looking for a Software Data Engineer to join our growing Data Team! Reporting to the Engineering Manager, you will evolve our data models in several styles of datastores and operationalize production-grade data pipelines. As part of this role, you'll collaborate...Home office$53k - $71k per year
...clients’ needs. For more information about Citco, please visit Responsibilities About the Team & Business Line: Proprietary software solutions and innovation are at the core of what differentiates Citco in the alternative investment space. Through our network of...InternshipWork at officeWorldwideFlexible hours$160k - $200k per year
...onsite at our Toronto office to support collaborative team dynamics and innovative problem-solving. BitGo is looking for a Software Engineer to join our Wallet Core Team and help us build an API -first platform for businesses and developers to launch crypto products....Full timeWork at officeWorldwide$70k per year
...Within TD Securities, Technology is the FinTech division that engineers platforms that support the leading-edge business capabilities required... ...' capabilities across the globe. Program Overview The Software Engineering Co-op is a core component of our Talent Accelerator...Full timeSummer workInternshipWork at officeWork from home
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Software Development Engineer / Freelance. Be the first to apply!
Related searches
- senior software developer Toronto, ON
- software developer intern Toronto, ON
- software developer Toronto, ON
- software engineer Toronto, ON
- new graduate software developer Toronto, ON
- senior software engineer Toronto, ON
- part time software developer Toronto, ON
- software developer internship no experience Toronto, ON
- software engineer intern Toronto, ON
- remote entry level software developer Toronto, ON