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Reposted 9 Days AgoSaved
Remote
România
Senior level
Senior level
Artificial Intelligence • Machine Learning • Natural Language Processing • Software
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.
Top Skills: Api DesignAWSBackground JobsCi/CdDatabasesE2E TestsEmbeddingsIntegration TestsLlm ApisLlm ObservabilityRagReactRubyRuby On RailsUnit TestsVector Search
Reposted 9 Days AgoSaved
Remote
România
Senior level
Senior level
Artificial Intelligence • Machine Learning • Natural Language Processing • Software
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.
Top Skills: Ai/LlmApi DesignAutomated Testing (UnitAWSBackground JobsCi/CdDatabasesE2E)IntegrationLlm ApisLocalizationMultilingual SupportPrompt EngineeringRetrieval-Augmented GenerationRuby On RailsTranslation
Reposted 9 Days AgoSaved
Remote
Spain
Senior level
Senior level
Artificial Intelligence • Machine Learning • Natural Language Processing • Software
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.
Top Skills: Api DesignBackground JobsDatabasesE2E TestingIntegration TestingLlm ApisPrompt EngineeringRetrieval/Context StrategiesRubyRuby On RailsUnit Testing
Reposted 9 Days AgoSaved
Remote
Serbia
Senior level
Senior level
Artificial Intelligence • Machine Learning • Natural Language Processing • Software
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.
Top Skills: Ai/LlmApi DesignAWSBackground JobsCi/CdDatabasesE2E TestingIntegration TestingLlm ApisLocalization/TranslationRuby On RailsText ProcessingUnit Testing
Reposted 17 Days AgoSaved
Remote
Poland
Senior level
Senior level
Artificial Intelligence • Machine Learning • Natural Language Processing • Software
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.
Top Skills: Automated TestingDatabasesE2E TestingRubyRuby On RailsSQLWeb Apis
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Reposted 17 Days AgoSaved
Remote
Serbia
Senior level
Senior level
Artificial Intelligence • Machine Learning • Natural Language Processing • Software
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.
Top Skills: Automated TestingDatabasesE2E TestingRubyRuby On RailsWeb Apis
Reposted 17 Days AgoSaved
Remote
Morocco
Senior level
Senior level
Artificial Intelligence • Machine Learning • Natural Language Processing • Software
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.
Top Skills: PHPWordpressWpml
Reposted 17 Days AgoSaved
Remote
Ukraine
Mid level
Mid level
Artificial Intelligence • Machine Learning • Natural Language Processing • Software
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.
Top Skills: APIsCrewaiDockerEmbeddingsGitlab CiOpenai ApiPostgresPythonSQLVector Databases
Reposted 17 Days AgoSaved
Remote
România
Senior level
Senior level
Artificial Intelligence • Machine Learning • Natural Language Processing • Software
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.
Top Skills: Automated TestingDatabasesE2E TestingRubyRuby On RailsWeb Apis
Reposted 17 Days AgoSaved
Remote
România
Senior level
Senior level
Artificial Intelligence • Machine Learning • Natural Language Processing • Software
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.
Top Skills: AIApi DesignBackground JobsDatabasesE2E TestingIntegration TestingLlm ApisLlmsPrompt EngineeringRetrieval StrategiesRubyRuby On RailsUnit Testing
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