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Ruby developer Jobs in San Mateo, CA

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Ruby developer • san mateo ca

Last updated: 1 day ago
Remote Ruby Engineer - AI Trainer

Remote Ruby Engineer - AI Trainer

SuperAnnotateSan Bruno, California, US
Remote
Full-time
As an hourly paid, fully remote Ruby Engineer for AI Data Training, you will review AI-generated Ruby and Rails code or generate your own solutions, evaluate the reasoning quality and step-by-step ...Show moreLast updated: 10 days ago
Java Developer

Java Developer

Seven Seven SoftwaresMenlo Park, CA, US
Full-time
RESPONSIBILITIES : Effectively work with the PMO, Development, Product Management, Business and Technical Operations, Systems Engineering, Infrastructure, Networks and Architecture teams.Design and ...Show moreLast updated: 30+ days ago
SAP Developer

SAP Developer

Barrow Wise ConsultingCA, USA
Temporary
Quick Apply
Enjoy problem-solving, need a venue to display your creativity, and emerging technologies pique your interest; if so, Barrow Wise Consulting, LLC is for you. As a multi-disciplined leader, you under...Show moreLast updated: 30+ days ago
Senior iOS App Developer

Senior iOS App Developer

Amicis GlobalMenlo Park, California, USA
Full-time
Title : Senior iOS App Developer.Were hiring (more than one) senior iOS Developer for our E •TRADE and Brokerage Wealth Management App a collaborative group of folks that value craftsmanship and curi...Show moreLast updated: 26 days ago
  • Promoted
Product Developer

Product Developer

Shaw BakersSouth San Francisco, CA, US
Full-time
Shaw Bakers is seeking an experienced Product Developer to join our dynamic team.The ideal candidate will bring knowledge in bakery product development, with a strong focus on lamination techniques...Show moreLast updated: 30+ days ago
Webflow Developer

Webflow Developer

NotableSan Mateo, California, United States
Full-time
Notable is the leading intelligent automation company for healthcare.Customers use Notable to drive patient acquisition, retention, and reimbursement, scaling growth without hiring more staff.We ar...Show moreLast updated: 15 days ago
ServiceNow Developer

ServiceNow Developer

TridentCareundefined null, US
Full-time
We are seeking a skilled ServiceNow Developer to design, develop, and implement solutions within the ServiceNow platform. The ideal candidate will have hands-on experience with ServiceNow modules, s...Show moreLast updated: 30+ days ago
Java Developer

Java Developer

Veterans SourcingMenlo Park, CA, US
Full-time
Menlo Park, CA - Hybrid 3 Days a Week Onsite.Experience designing and building applications, taking into consideration performance, usability, user experience, and security.Excellent programming sk...Show moreLast updated: 30+ days ago
iOS Developer

iOS Developer

OptimagsSFO. CA, USA
Full-time
Client is looking for an iOS Developer who possesses a passion for pushing mobile technologies to the limits and will work with our team of talented engineers to design and build the next generatio...Show moreLast updated: 30+ days ago
Software Developer

Software Developer

Vertex Sigma SoftwareSan Mateo, CA, US
Full-time
We are seeking an individual passionate about optimizing software, hardware, and data transfer to support our AI.The IT storage team manages petabytes of on-premises, clustered POSIX storage for AI...Show moreLast updated: 30+ days ago
Senior Applications Developer

Senior Applications Developer

OracleRedwood City, California, USA
Full-time
Analyze design develop troubleshoot and debug software programs for commercial or end user applications.Writes code completes programming and performs testing and debugging of applications.The ERP ...Show moreLast updated: 5 days ago
Senior Developer

Senior Developer

C&L GroupMenlo Park, CA, US
Full-time
Location : Menlo Park, CA 94025.Duration : 12 Months + Extension.We are seeking an experienced Senior Backend Engineer to join our Middle Office Core Platform Organization. This team is responsible fo...Show moreLast updated: 30+ days ago
Technical Curriculum Developer

Technical Curriculum Developer

C3 AiRedwood City, California, USA
Full-time
C3 AI (NYSE : AI) is the Enterprise AI application software company.C3 AI delivers a family of fully integrated products including the C3 Agentic AI Platform an end-to-end platform for developing de...Show moreLast updated: 1 day ago
Business developer intern

Business developer intern

hummingbirdsundefined, undefined
Internship
Nature-based Solutions (NbS) project developer, founded in spring 2022.We aim at filling a gap in nature ecosystem to build bridges between large corporate / institutional investment capital and on...Show moreLast updated: 21 days ago
Developer

Developer

Roblox CorporationSan Mateo, CA, US
Full-time
Join Our Team as an Admin at Roblox Corporation!.Are you ready to be part of a company that’s redefining the gaming industry? Roblox Corporation, founded in 2004, is a leading American video ...Show moreLast updated: 30+ days ago
Salesforce Developer

Salesforce Developer

GoodLeapSan Mateo, CA, US
Full-time
GoodLeap is a technology company delivering best-in-class financing and software products for sustainable solutions, from solar panels and batteries to energy-efficient HVAC, heat pumps, roofing, w...Show moreLast updated: 30+ days ago
Business Developer

Business Developer

Qplox engineeringundefined, Leuven
Full-time
We are looking for an HR & Recruitment Specialist.Show moreLast updated: 30+ days ago
  • Promoted
Sr. Oracle Fusion Developer

Sr. Oracle Fusion Developer

Stanford UniversityRedwood City, CA, United States
Full-time
Thank you for your interest in Stanford University.While we have instituted a hiring pause for non-critical staff positions, we are actively recruiting for most of the positions currently listed on...Show moreLast updated: 30+ days ago
Front-End Web Developer

Front-End Web Developer

Eyetell, Inc.San Mateo, California, United States
Full-time
EyeTell is a new startup brought to you by Chad Hurley, the Co-Founder and former CEO of YouTube.We are building something new at the intersection of AI and mixed media and are looking for a passio...Show moreLast updated: 30+ days ago
People also ask
Remote Ruby Engineer - AI Trainer

Remote Ruby Engineer - AI Trainer

SuperAnnotateSan Bruno, California, US
10 days ago
Job type
  • Full-time
  • Remote
Job description

As an hourly paid, fully remote Ruby Engineer for AI Data Training, you will review AI-generated Ruby and Rails code or generate your own solutions, evaluate the reasoning quality and step-by-step problem-solving, and provide expert feedback that helps models produce answers that are accurate, logical, and clearly explained. You will assess solutions for readability, maintainability, and correctness; identify errors in MVC structure, domain modeling, or control flow; fact-check information; write high-quality explanations and model solutions that demonstrate idiomatic Ruby patterns; and rate and compare multiple AI responses based on correctness and reasoning quality.

This role is with SME Careers, a fast-growing AI Data Services company and subsidiary of SuperAnnotate that provides AI training data for many of the world’s largest AI companies and foundation model labs, and your work will directly help improve the world’s premier AI models while giving you the flexibility of impactful, detail-oriented remote contract work.

Key Responsibilities :

  • Develop AI Training Content : Create detailed prompts in various topics and responses to guide AI learning, ensuring the models reflect a comprehensive understanding of diverse subjects.
  • Optimize AI Performance : Evaluate and rank AI responses to enhance the model's accuracy, fluency, and contextual relevance.
  • Ensure Model Integrity : Test AI models for potential inaccuracies or biases, validating their reliability across use cases.

Your Profile :

  • 1–2+ years of professional Ruby programming experience in production environments.
  • Strong understanding of Ruby on Rails, MVC architecture, and idiomatic Ruby patterns for structuring application code.
  • Hands-on software engineering experience building and maintaining Ruby or Rails applications, with exposure to real-world production constraints.
  • Ability to evaluate readability, maintainability, and logical correctness in Ruby and Rails code, including model, controller, and service-layer design.
  • Significant experience using LLMs or AI coding assistants while programming, combined with a disciplined approach to validating and reviewing their output.
  • Excellent English writing skills, capable of producing clear, structured, and pedagogical technical explanations and code reviews.
  • Minimum Bachelor’s degree in Computer Science or a closely related technical field.
  • Previous experience with AI data training, large-scale code review, or evaluation of AI-generated technical content is strongly preferred; Minimum C1 English proficiency and an extremely detail-oriented working style are required.
  • Highly preferred : experience with frameworks and tools such as Ruby on Rails, Sinatra, and RSpec in real projects.
  • Preferred : merged PRs in Ruby open-source projects, experience with metaprogramming or test-heavy systems, and competitive programming exposure.