Jobs at OnTheGoSystems

Own and deliver end-to-end features for high-scale Ruby on Rails systems. Design and implement AI/LLM-assisted workflows, work with LLM APIs and retrieval strategies, ensure performance, reliability, security, and maintain automated unit, integration, and E2E tests, and debug production issues.

Design, build, and own AI/LLM-assisted product features in Ruby on Rails: integrate LLM APIs, combine AI with business logic, tests, fallbacks and safeguards, improve reliability/latency/cost/security, write automated tests, and debug production issues.

Own end-to-end features on Ruby on Rails systems at scale, design and implement AI/LLM-assisted workflows, work with LLM APIs and retrieval strategies, ensure performance, reliability, and security, write automated tests, debug production issues, and maintain long-term code quality.

Build and own AI/LLM-assisted product features in Ruby on Rails: integrate LLM APIs, design fallbacks and safeguards, improve reliability and performance, and write automated tests across unit, integration, and E2E levels.

Senior backend engineer owning features end-to-end: build and maintain Ruby on Rails systems at scale, write unit/integration/E2E tests, improve performance and reliability, collaborate with product and engineers, and ensure long-term code quality and production stability while working during EMEA hours.

Own and implement backend features in a Ruby on Rails codebase, build and maintain production systems, write automated tests (unit, integration, E2E), improve performance and reliability, collaborate with product and engineers, and take long-term responsibility for code quality and system health.

Develop and maintain the WPML WordPress plugin: deliver new features, strengthen components, diagnose and fix bugs, support clients, write tests, improve performance, and feed user-driven product improvements.

Build production-ready AI systems using Python, OpenAI APIs, embeddings and vector databases. Implement async pipelines, background jobs, PostgreSQL-backed storage, Dockerized deployments with GitLab CI, and robust testing, logging, and API integrations while collaborating with distributed teams.

Build, own, and maintain backend features and production Ruby on Rails systems. Write and maintain automated unit, integration, and E2E tests, improve performance and reliability, collaborate with product and engineers, and ensure long-term code quality and operational health.

Own and deliver complex backend features end-to-end using Ruby on Rails. Design and operate production systems, integrate AI/LLM-assisted workflows, balance performance/reliability/cost, write automated tests (unit, integration, E2E), and debug/maintain system reliability.

Own and deliver end-to-end backend features in Ruby on Rails at scale. Design and implement AI/LLM-assisted workflows, ensure performance, reliability, security, and maintainability. Write and maintain unit, integration, and E2E tests, debug production issues, and improve system reliability.

Build and own AI/LLM-assisted features in a Ruby on Rails production environment. Integrate LLM APIs, design prompts and retrieval/context patterns, implement safeguards and fallbacks, improve reliability, latency, cost, and security, and write/maintain unit, integration, and E2E tests. Debug production issues and iteratively improve system behavior.

Develop and maintain WPML plugin features, diagnose and fix customer issues, improve product reliability, write tests and clean code, and deepen expertise in PHP, WordPress, performance, and modern tooling while supporting clients and influencing the roadmap.

Build and maintain WPML, deliver new features, debug and fix issues, support clients, improve product reliability, and strengthen PHP, WordPress, testing, and performance practices.

Senior backend engineer owning feature implementation to production, building and maintaining Ruby on Rails systems at scale, writing automated tests (unit, integration, E2E), improving performance and reliability, and collaborating with product and engineers while working autonomously during EMEA hours.

Develop and maintain WPML: deliver new features, strengthen components, debug and fix root causes, support clients, write tests, improve performance, and influence product roadmap.

Develop and maintain WPML by delivering new features, strengthening components, debugging and tracing root causes, supporting clients with technical issues, and improving reliability through testing, performance work, and modern tooling.

Design, build, and operate core AI systems (support, marketing, client orchestration) using LLMs and vector databases. Implement async pipelines, background jobs, and scalable production deployments. Measure performance, iterate, and improve system reliability, logging, and monitoring.

Build and operate core AI systems: design production-ready solutions using OpenAI APIs, embeddings and vector databases; implement async pipelines, background jobs, PostgreSQL integration, Docker/GitLab CI deployments; ensure testing, logging, monitoring; collaborate with distributed teams to turn open-ended goals into reliable systems.

Build and own AI/LLM-assisted features in Ruby on Rails: integrate LLM APIs, implement retrieval/context patterns and prompts, ensure reliability, tests, fallbacks, performance, security, and production operability.