Ruby Software Engineer

Seeking a remote freelance Ruby Software Engineer with 3+ years of experience to collaborate on AI projects, focusing on prompt generation, scoring, and model response improvement.

Mercor seeks a senior software engineer to contribute to an expert US/Europe-based AI lab project. You will commit about 20 hours per week on a short-term contract of 2–3 weeks, with promotion opportunities within the project.Compensation is competitive, ranging from $150 to $210 per hour depending on geography and experience. This role offers...

Portugal / Brazil - Remote (within locations) You will join a cross-functional squad responsible for building and maintaining high-scale, customer-facing services. The role involves contributing to new product features, evolving system architecture, improving code quality, and ensuring operational reliability in a modern, cloud-based environment. The ideal...

Freelance Software Developer (Ruby) - AI Trainer 4 days ago Be among the first 25 applicants This opportunity is only for candidates currently residing in the specified country. Your location may affect eligibility and rates. Please submit your resume in English and indicate your level of English proficiency. At Mindrift, innovation meets opportunity. We...

- Portugal / Brazil - Remote (within locations)You will join a cross-functional squad responsible for building and maintaining high-scale, customer-facing services. The role involves contributing to new product features, evolving system architecture, improving code quality, and ensuring operational reliability in a modern, cloud-based environment.The ideal...

OverviewAbout Cleo: At Cleo, we're not just building another fintech app. We're embarking on a mission to fundamentally change humanity's relationship with money. Imagine a world where everyone, regardless of background or income, has access to a hyper-intelligent financial advisor in their pocket. That's the future we're creating.About the Company: Cleo is...

Backend Engineer role focused on A2A integration, building an Enterprise Agent Development Platform for scalable agent-to-agent interactions and cloud-native orchestration.

About The Role We are looking for an experienced Senior Backend Engineer specialising in Ruby on Rails to join the R&D and Engineering team of a fast-growing AI technology company serving millions of users worldwide. In this hands-on individual contributor role, you will be responsible for designing, developing and scaling core backend applications that...

Vigil365 Limited is seeking a Ruby engineer to join our cross-functional squad responsible for high-scale, customer-facing services. You will contribute to new features, evolve architecture, and ensure operational reliability in a cloud-based environment. The role values collaboration, autonomy, experimentation, and shared ownership, shaping technical...