ruby English-speaking jobs in Opole Voivodeship

Machine Learning Specialist to design, implement, and enhance AI-driven solutions for retail and restaurant industries. Requires 5+ years of experience in commercial machine learning project development, 1+ year with LLMs, and proficiency in Python, Snowflake, and cloud platforms.

Product Data Specialist ensures accuracy and consistency of product and supplier data in the ERP system. Maintains and updates master data, tracks Supplier Cost Notices, and supports internal and external stakeholders. Requires a Bachelor's degree, fluency in English, and experience with ERP systems.

Drive backend improvement projects for an on-prem HashiCorp Vault environment, prioritizing reliability and continuous service enhancement. Provide best-practice expertise for design and build of on-prem Vault instances, ensuring robust and secure implementation. Support backend infrastructure and operations including application upgrades, vulnerability remediation, and ongoing configuration improvements.

Senior Software Engineer to build backend systems for AI-driven logistics solutions. Focus on core services, APIs, workflow orchestration, and integrations with HERE APIs and third-party systems.

Electrical Designer needed for R&D & Design Team. Design electrical solutions for heat exchanger and cooling systems. Create 3D models, 2D technical documentation, and BOMs. Collaborate with other departments and suppliers. Minimum E1 electrical qualification required.

Develop, maintain, and optimize gameplay mechanics and core systems using Unreal Engine 5 and C++. Collaborate with designers, artists, and fellow developers to deliver high-quality features.

Software Engineer will develop new software functionality, perform code reviews, and participate in agile ceremonies. Requires a university degree in Software Engineering or a related field, 3+ years of experience, and proficiency in TypeScript. Experience with AI development and audio/video technologies is preferred.

As a Principal Product Owner, you will own the product vision and backlog for Portfolio Management capabilities, translating portfolio manager needs into actionable product increments. You will lead and prioritize the backlog for scrum teams, collaborating with engineers and designers to shape workflows and data models. You will write product briefs, user stories, and acceptance criteria, and use feedback and data to validate priorities and iterate quickly.

Senior Staff Software Engineer will design, build, and maintain Java/Spring and Kafka Streams-based services processing real-time BLE and IoT telemetry. Responsibilities include owning ingress integrations with third-party location platforms, building egress pipelines, driving architectural decisions, and mentoring engineers. Requires 7+ years of backend software engineering experience, deep Apache Kafka knowledge, and experience building real-time, event-driven distributed systems.

Senior Data Designer responsible for creating high quality Enterprise Data Warehouse data designs. This includes understanding business requirements, documenting data sourcing, ingestion, mappings, and modeling. Designs must meet business needs, follow data design principles, and be delivered accurately and on time.

Espeo Software is seeking skilled Blockchain Developers to join their talent pool.

Leads software development teams in delivering secure, scalable fintech applications and platforms. Oversees the full software development lifecycle, ensuring delivery meets business priorities, regulatory requirements, and ethical standards. Drives agile and DevSecOps practices, automated testing, and continuous improvement. Acts as a leader for engineering teams, removing blockers, enabling productivity, and fostering an inclusive, high-performance culture. May spend up to 50–65% of time in hands-on coding, code reviews, and technical prototyping.

Experienced Software & AI Engineer needed for full-stack development using Python and ReactJS. Develop AI-powered data management solutions on GCP, implement AI/ML capabilities, and contribute to cloud-native application best practices.

Cybersecurity Network Security Specialist to support Frontex Headquarters in Warsaw. Requires security clearance (EU CONFIDENTIAL). 48-month contract with 30% onsite and 70% remote work.

The Senior Service Manager oversees end-to-end service management operations for cloud services. This role leads a support team, ensuring ITIL best practices and alignment with organizational service goals. The Senior Service Manager drives service excellence, continuous improvement, and operational alignment with governance and reporting standards.

Responsible for stand-alone booking of accounting transactions and preparation of financial reporting packages. Reports to Team Leader in Cracow. Requires a comprehensive understanding of the general ledger accounting system.

Define and implement IT governance practices aligning technology investments with business strategy. Support CIO organization in steering governance, ensuring alignment with IT governance principles and standards. Provide expert input to risk and compliance committees on technology governance and operational resilience. Drive awareness and change initiatives to embed a strong governance culture across IT and business departments.

Senior/Expert Backend Data Platform Engineer to modernize and evolve production systems, build data processing pipelines, and work with TB-scale flight data.

Designs, builds, and operates database services on Azure, supporting the organization's cloud database strategy and security measures.

Intrexx Application Engineer needed for support, maintenance, and development of business applications. Responsibilities include application support, bug fixing, change requests, and functional enhancements using Intrexx 12 platform. Requires proven experience with Intrexx 12, low-code development, and L2 support for business-critical applications. German language skills at B2 level are required.