Backend Engineer - Remote
YO AI Labs
Toronto, ON
- Remote job
Senior Software Engineer
Job Type: Contractor (~15 hours/week)
Location: Remote
Job Summary
We are seeking experienced Senior Software Engineers to support an AI training project by creating reinforcement learning environments that evaluate AI models on complex software engineering tasks using Model Context Protocol (MCP) tools.
You will design reproducible environments, deterministic verification, and reference solutions for tasks such as bug fixing, feature implementation, codebase refactoring, and performance optimization . No prior AI experience is required.
Key Responsibilities
- Create reinforcement learning environments for software engineering tasks.
- Design tasks involving bug fixing, feature development, refactoring, and performance optimization .
- Build deterministic verification systems and golden reference solutions.
- Evaluate AI agents' ability to reason through complex codebases and use MCP tools effectively.
- Develop realistic, reproducible software engineering scenarios.
- Ensure tasks accurately measure coding ability, problem-solving, and tool usage.
- Document solutions and provide clear technical feedback.
Required Skills
- Strong proficiency in Python 3, Java, Rust, C++, or TypeScript .
- Strong understanding of algorithms and data structures .
- Experience with bug fixing and debugging complex software issues .
- Proven experience in feature implementation and codebase refactoring .
- Strong knowledge of performance optimization and tuning .
- Excellent written and verbal communication.
- Strong attention to detail.
Preferred Qualifications
- Experience working with large-scale or distributed codebases .
- Familiarity with AI/ML systems is a plus but not required.
- Experience with rigorous code reviews and software engineering best practices .
- Experience working effectively in remote or cross-functional teams.
Hiring Process
- Submit an application and screening questions.
- Complete an AI interview (~30 minutes).
- Complete a technical assessment, if required.
- Hiring Manager review.
Compensation
Compensation is output-based , with payment provided per task that meets project specifications. Minimum weekly submission requirements may apply.
Availability
Selected experts should be prepared to begin their first tasks within 24–48 hours of completing onboarding .
Vacancy posted more than 2 months ago
Similar jobs that could be interesting for youBased on the Backend Engineer - Remote in Toronto, ON vacancy
$65 per hour
...Contract Compensation: $55–$65/hour Location: Remote Role Responsibilities Utilize PyCharm on macOS... ...to meet project requirements. Collaborate with backend engineers and data practitioners to optimize workflows. Qualifications...Remote jobContract workSummer work- ...and supporting production-ready products from scratch. ~5+ years of professional experience with Java. ~6+ years of experience in backend development. ~ Quick learner with an ambitious and results-driven personality. ~ Excellent communication and organizational...SuggestedFull timeInternshipImmediate start
- ...RRSP/DPSP match, employee assistance programs and time away - don't worry, we've got you covered.The Job at a GlanceAs a Principal Backend Engineer, you will design, architect, and optimize scalable microservices that power our eCommerce and enterprise platforms. You'll drive...SuggestedFull timeContract work
- ...and terabytes of data per day? Zynga is looking for a Software Engineer to join the Data Ingestion team in our Analytics organization. The... ...You'll Do: Design, build and own data-driven large-scale backend services to be consumed by clients across multiple platforms (mobile...SuggestedFull timeLocal area
- ...We are hiring a Senior Backend Engineer for its Customer Focus Group (CFG) — a technical team that bridges engineering and the commercial side of the product. CFG members handle development, architecture, product, and direct customer interaction: translating customer needs...Suggested
- ...challenges and are focused on providing Canadians with better access to the care they need. We are seeking a highly skilled Backend Software Engineer to join our team. The ideal candidate will have a strong background in Node, and PostgreSQL. As a member of our integrations...Flexible hours
$92k - $118k per year
...Build scalable backend applications and integrate AI-powered workflows into complex financial services environments. The Role At Capco, we’re looking for a Java Backend Engineer with practical experience building AI-powered applications, workflows, and automation...InternshipImmediate start- ...capabilities. Work directly with users to understand emerging threats and turn those insights into products. Partner with ML engineers and data scientists to bring new signals, models, and AI capabilities into production. Own projects from technical design and implementation...Full time
$160k - $220k per year
...This is an opportunity to do career-defining work. We're all in on this mission. If you are too, let's talk. The Staff Software Engineer Opportunity Passkeys, powered by FIDO2 WebAuthn, are revolutionizing how people authenticate—bringing us into a passwordless future...Local areaWorldwide- ...protect and grow their revenue. What you’ll do As a software engineer on Radar, you’ll build products and infrastructure that help... ...businesses understand and stop fraud and abuse. Your work will span backend services, enterprise APIs, and user experiences that put...
$50 - $53 per hour
...Job Responsibility: Job Title: Platform Engineer Location: Toronto Downtown,Canada Job Type: Full time contract Department: Engineering... ...microservices using Docker containers. Develop and maintain backend services using Python, adhering to scalable and maintainable...Hourly payFull timeContract workRelocationMonday to friday$120k - $150k per year
...DoorDash is building the world's most reliable on-demand, logistics engine for delivery! We're looking for experienced engineers to join our... ..., merchants, and dashers. About the Role We’re looking for Backend Engineers to work on both Product and Product Platform based...Full timeWork at officeLocal area- ...Location: Canada (Remote-friendly) Start date: ASAP Languages: English (required), French... ...workflows, with a strong emphasis on backend reliability and speed of execution. Were looking for a Full-Stack Engineer (backend-leaning) who can take ownership of...Remote jobImmediate startFlexible hours
$185k - $230k per year
...ingestion platform underneath it all. It is a mix of product and backend engineering, shaping the APIs and deeper backend components our customers... ..., SQS, Kafka, EventBridge). Orchestration and workflow engines (Step Functions, Temporal). JVM languages for cross-team...Full timeInternshipWork at officeFlexible hours- ...customer satisfaction and drive merchant conversion rates. The Risk Engineering team develops products that minimize financial and regulatory... ...can be found here . What you’ll do We’re looking for Backend engineers who want to make an impact on managing money at a...Internship
- ...What you'll do: Design and implement backend architecture following best software engineering principles Develop clean, efficient code with tests ensuring code quality Participate in code reviews and invite others to review your code Champion the importance of...Full timeWork at officeWork from home
- ...About the Role We’re looking for Senior Backend Engineers to work on both Product and Product Platform based teams. Product focused Engineers work at the intersection of product and infrastructure to solve key business problems with elegant technical solutions. You'll operate...Work at officeLocal area
$180k - $220k per year
...Toronto office to support collaborative team dynamics and innovative problem-solving. BitGo is looking for a Senior Software Engineer (Backend) to join our Mobile team and help us build the first-time user experience for our retail users. Responsibilities: Design and...Full timeWork at officeWorldwide$40 - $50 per hour
...Jack Dorsey . Position: Software Engineer Type: Contract Compensation: $40–$50/hour Location: Remote Role Responsibilities Build MCP... ...Python skills. Experience with APIs , backend systems, and debugging. Familiarity...Remote jobContract workSummer workLocal area$185k - $231.5k per year
...DoorDash is building the world's most reliable on-demand, logistics engine for delivery! We're looking for experienced engineers to join our... ...problems with elegant technical solutions. You'll operate our backend services and architecture that support all product functionality...Full timeLocal area$40 - $45 per hour
...cultivating a work environment where all team members belong and have the opportunity to thrive. Interns work side-by-side with top engineers in the industry while having autonomy from the get-go. They contribute to user-facing products and are able to see their work go...Hourly payFull timeSummer workInternshipSummer internshipWork at officeImmediate startWork from home3 days per week$129.5k - $178k per year
...first step in that journey. As a Product Engineer on the Brand pillar, you will be... ...across multiple stacks, potentially including Backend, Frontend, and Mobile Optimize web applications... ...roles will have the flexibility to work remotely up to 4 weeks per year. Specific...Remote workLong term contractWork at officeLocal areaMonday to friday3 days per week- ...culture with a focus on helping people, a full range of benefits, and remote work options. Our employees also have access to the same high-... ...you, we want to hear from you! The Role Reporting to the Engineering Manager for a Virtual Health Product, your role as a Product Development...Remote workFull timeWork at office
- ...to manage your work activities within a hybrid work arrangement where you’ll spend 1-3 days per week on-site, while other days will be remote. How You’ll Succeed Design and Development - Lead API design by analyzing business requirements and following system...Permanent employmentFull timeFlexible hours3 days per week1 day per week
- ...Lead Application Security Engineer — Remote (Canada) Remote, Canada · Permanent · Remote Compensation: $220,000 to $320,000 USD base, plus... ...at high volume Extending a multi-region, multi-cloud backend into new regions so global customers can meet their data residency...Remote jobPermanent employmentInternship
- ...might be in the right place! We are seeking a talented Staff Backend Developer to join one of our energetic teams. In this role, you... ...part of a vibrant, collaborative team dedicated to enhancing our engineering practices, implementing advanced technology, and maintaining an...Full timeWorldwideFlexible hours
- ...conversation for people everywhere. TextNow is looking for an Intermediate Backend Software Developer to join our Core Experience Team. At TextNow,... ...: Strong work life blend Flexible work arrangements (wfh, remote, or access to one of our office spaces) Employee Stock Options...Remote workWork at officeWork from homeFlexible hours
$166k - $195k per year
...Developer on this high-impact team, you’ll collaborate across engineering, business, operations, and vendor channels to support critical... ...days per week. What you’ll do ● Build scalable systems and backend components, balancing stability, performance, and maintainability...Long term contractWork at officeShift work3 days per week$120 per hour
..., Adam D'Angelo , Larry Summers , and Jack Dorsey . Position: Senior Software Engineer Type: Contract Compensation: $120/hour Location: Remote Role Responsibilities Apply open-source engineering experience to real software...Remote jobContract workSummer work$60 - $120 per hour
...AI & Software Engineers – Remote Opportunities Full-Time & Flexible Contract Options | Remote $60 - $120 per hour We are recruiting... ...welcomed from AI Engineers, ML Engineers, Software Engineers, Backend Engineers, Full Stack Engineers and experienced developers...Remote jobHourly payFull timeContract workFlexible hours
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Backend Engineer - Remote. Be the first to apply!
Related searches
- backend software developer Toronto, ON
- backend developer Toronto, ON
- remote copy editor Toronto, ON
- clinical data manager remote Toronto, ON
- software developer remote Toronto, ON
- remote computer science Toronto, ON
- remote customer service manager Toronto, ON
- remote leadership Toronto, ON
- clinical research remote Toronto, ON
- remote proofreader Toronto, ON