RemoteLeaf Logo
Log in Sign up

Senior Ruby on Rails Developer (LLM)

5 hours, 37 minutes ago
Spain, Portugal
Full-time
Senior
AI Engineer
Software Development
AWS CI/CD LLM React Ruby Ruby on Rails WordPress
Apply Now
OnTheGoSystems

OnTheGoSystems

OnTheGoSystems is a remote team of tech enthusiasts, innovators, creatives, and engineers dedicated to building cutting-edge translation tools that empower businesses of all sizes to expand globally. Their flagship product, WPML (WordPress Multilingual...

Internet Software & Services
51-250
Founded 2007
View All Jobs 10

Description

  • Own features from technical design through production delivery.
  • Build and maintain Ruby on Rails systems used at scale.
  • Design AI/LLM-assisted features and workflows that improve product quality or user experience.
  • Work with LLM APIs, prompts, retrieval/context strategies, and AI-assisted development tools.
  • Make technical trade-offs across performance, reliability, cost, latency, security, and maintainability.
  • Write and maintain automated unit, integration, and end-to-end tests.
  • Debug production issues and improve system reliability.

Requirements

  • Strong professional experience with Ruby on Rails, ideally at senior level.
  • Experience building and running production systems used by real customers.
  • Strong backend skills, including databases, API design, performance, background jobs, and security.
  • Ability to break down ambiguous problems and propose practical technical solutions.
  • Hands-on interest or experience with AI/LLM technologies.
  • Good judgment about when to use AI and when simpler engineering approaches are better.
  • Strong testing habits and care for long-term code quality.
  • A responsible, curious, flexible mindset with willingness to debug, deploy, investigate, learn, and own outcomes.
  • Experience with React is a plus.
  • CI/CD, background jobs, or AWS experience is a plus.
  • Experience building AI-powered product features in production is a plus.
  • Familiarity with embeddings, vector search, RAG, evals, or LLM observability is a plus.
  • Experience with text-processing, localization, translation, or multilingual products is a plus.

Benefits

  • Fully remote and async-friendly work from anywhere within EMEA hours.
  • Stable, self-funded, profitable, and independent company.
  • Engineering-driven culture with ownership, autonomy, testing, and thoughtful problem-solving.
  • Fair compensation and great benefits.
  • Opportunity to work on WPML, a leading multilingual WordPress plugin used on 1.5M+ sites.

Interested in this position?

Apply directly on the company website

Apply Now

Similar Roles

Epic Games

Senior Backend Engineer, Developer Platform (Horde)

Epic Games 5K-10K Internet Software & Services

Epic Games is hiring a senior programmer for its Unreal Engine developer platform team to work on Horde, the internal platform that supports CI/CD, remote execution, build health, storage, and developer workflows.

United States Canada Full-time Senior Backend Engineer
$173k-$279k
AWS Azure C# CI/CD gRPC MongoDB .NET Redis
4 hours, 52 minutes ago
Xebia

Principal Fullstack Architect (AI & Agentic Systems)

Xebia 1K-5K Internet Software & Services

Xebia is hiring a Senior AI Software Engineer for an insurance technology client to help scale an AI-native underwriting platform from MVP into a production-grade system.

Moldova Poland Romania Slovakia Bulgaria Sweden Czech Republic Hungary Lead AI Engineer Full-stack Engineer
AWS Azure Databricks GCP Generative AI LLM Microservices Python React Snowflake TypeScript
4 hours, 52 minutes ago
Coupang

Senior Staff Back-end Engineer (eCommerce Engineering)

Coupang 1K-5K Internet Software & Services

Coupang is hiring a Senior Staff Backend Engineer to lead the architecture and technical strategy for its core e-commerce platform services across global markets.

South Korea Full-time Lead Backend Engineer
Apache Airflow Apache Spark AWS Cassandra Grafana Java Kafka Kotlin Kubernetes Microservices OpenTelemetry Prometheus Spring
5 hours, 7 minutes ago
Skyline Eco-Adventures

Autonomy Droid Perception SWE - Onboard Systems

Skyline Eco-Adventures 11-50 Hotels, Restaurants & Leisure

Zipline is hiring a Senior or Staff Perception Engineer to build and deploy real-time 3D perception systems for its autonomous drone delivery network, supporting onboard autonomy and planning for safety-critical backyard deliveries.

United States Full-time Senior AI Engineer Robotics Engineer
$200k-$280k
CNN Computer Vision Deep Learning Machine Learning
5 hours, 22 minutes ago

You're on a roll! Sign up now to keep applying.

Sign Up

Already have an account? Log in

Used by 14,729+ remote workers