ruby English-speaking jobs in Lublin

Senior Full-Stack Engineer to build and run production AI agents. Experience with LLM systems, agent orchestration, and production reality of LLM systems required. Full-stack ownership from frontend to infrastructure. Must have 5+ years shipping production software, at least 1-2 years with real LLM systems. Strong AI-native coding workflow and hands-on experience with LLM APIs, RAG, and prompt engineering.

Senior Frontend Developer with 5+ years of experience in TypeScript and React. Build innovative features and integrate partners for the Ledger DeFi ecosystem.

Finance System Project Governance Intern will assist with documenting business requirements, preparing for and executing testing activities, and supporting systems integration. The intern will contribute to process improvements and internal communication.

Develop automation solutions using Automation Anywhere, integrating technologies like Intelligent Document Processing and Machine Learning. Collaborate with subject matter experts to design, document, and implement automations. Troubleshoot issues and provide technical leadership.

Inventory Control Specialist will lead full cycle counting programs, design risk-based counting strategies, and analyze inventory variances. Requires a Bachelor's degree in a related field and several years of inventory control experience. Fluency in Polish and English is required.

Scrum Master / Agile Delivery & Team Operations Partner to support Public API Development Team. Facilitates Scrum ceremonies, promotes Agile principles, coaches team collaboration, and supports team effectiveness. Also provides leadership support, team coordination, communication, and operational rhythm. Requires 3+ years experience in a similar role, strong Agile understanding, and excellent communication skills.

Develop and maintain web applications for Electronic Medical Documentation and clinic management. Experience with Python, Django, and PostgreSQL is required. Must be comfortable working in a small team and have strong communication skills in English.

Support the development research of braking control devices for commercial vehicles by conducting functional, environmental, and mechanical tests. Review design requirements, create test cases, and evaluate test results. Collaborate with the mechanical design team to deliver robust technical solutions.

Provides administrative support to the sales organization, including processing pricing requests, preparing reports, and supporting bid submissions. Requires strong analytical skills, proficiency in Microsoft Office, and fluency in English and German.

Senior Analyst will support VAT reporting compliance for specific markets, prepare VAT returns, and provide technical support on indirect tax matters.

Participates in the design, development, and evaluation of control systems components and processes. Collaborates with other engineering disciplines on control systems matters. Applies standard control systems engineering methods, techniques, procedures, and criteria.

Lead and manage large, complex renewable energy projects, ensuring on-time, on-budget delivery. Coordinate resources, conduct stakeholder engagement, and manage project planning, budgeting, and risk.

Senior Buyer manages purchasing activities for a portfolio of instruments and endoscope products, ensuring uninterrupted supply and customer service. Requires a bachelor's degree and 3+ years of experience in purchasing, procurement, or supply chain. Fluency in English and German is required.

Lufthansa Systems Poland seeks a Java Kotlin Developer to implement and maintain REST APIs, integrate with systems like Kafka and Redis, and work with SQL and NoSQL databases. Collaborate in an international agile team, troubleshoot issues, and participate in code refactoring.

Software Mind seeks a Python Developer to design and develop APIs for a GPU infrastructure management platform. Responsibilities include extending API capabilities, implementing secure access, and integrating APIs with microservices. 5+ years of backend/API development experience and strong Python skills are required.

Develops backend features for content management, focusing on scalability and performance. Designs and implements auto-scaling solutions for microservices. Solves distributed systems challenges and optimizes system performance. Collaborates with cross-functional teams and participates in Agile ceremonies.

The LLI Academy is seeking junior developers with basic Ruby on Rails and JavaScript knowledge to gain hands-on experience, mentorship, and become part of a dynamic team.

Junior Localization Project Coordinators manage the full lifecycle of localization projects, from inception to completion. They determine resource requirements, support team members, and ensure project quality.

Leads a team of mobile native software developers (iOS/Android) to deliver customer and engineering outcomes. Manages team performance, provides coaching and feedback, and collaborates with stakeholders to achieve goals. Requires extensive mobile development experience, leadership skills, and strong communication abilities.

Design, build, and operate reusable front-end and backend services for B2B and B2C customer solutions. Collaborate with developers to build, maintain, and operate API services and contribute to the Digital Solution Platform.