ruby English-speaking jobs in Bielsko-Biała

About the role We’re looking for a talented Product/UX Designer who can turn cutting-edge AI capabilities into a product that feels obvious, intuitive, and delightful. We analyze large volumes of data with AI agents and digest findings in the best possible way for non-technical users (think visual reports, dashboards etc).

Develop and execute merchandise financial planning strategies to achieve sales, stock cover, and full-price sell-through targets. Define sales, stock, and markdown budgets and forecasts. Collaborate with local and central teams to optimize profitability and performance.

Experienced Murex v3 professionals sought for Agile teams specializing in Market Risk Consulting, Technical Support, FX Business Analysis, and IT Development. Manage end-to-end VaR calculations, configure and develop the MRB module, and ensure platform stability.

Data Scientist needed for SEM keyword structure design, predictive algorithm creation, and campaign management. Requires a Bachelor, MSc, or PhD in Mathematics, Physics, Computer Science, Software Engineering, or a related field. Statistics knowledge and English fluency are essential.

The SAP Lead – Project Systems will configure, implement, and support SAP PS within a multi-system landscape. This role requires a detailed understanding of all aspects of SAP PS, including Engineer To Order, Resource Capacity Planning, Project Manufacturing, Scheduling, Results Analyses, and cross-modular integrations.

NET Developer to join KOIA and our Norwegian fintech client. In this position, about 65% of the tasks will be related to the backend (including 3rd party integrations), ~25% Analysis & Architecture, ~10% Testing. Project The application is based on modern technologies and architecture. We have a front-end app written in React and a backend in . NET/ Node.

Python Developer to build and maintain APIs, integrate Generative AI, and work with databases. Experience with FastAPI, LLMs, and CI/CD pipelines required.

Design, implement, and maintain production-grade APIs for a unified data platform. Build low-latency, scalable REST APIs for firmographics, financials, workforce data, and derived signals. Develop search APIs supporting keyword, fuzzy, and semantic queries across company data.

Senior Backend Engineer to design, develop, and maintain scalable backend services for an internal communications platform. Experience with GoLang, cloud platforms, and containerization technologies required. Collaborate with ML Scientists and Data Scientists to transition prototypes into production-ready services.

Network Engineer needed for a strategic project migrating and modernizing a global F5 load balancer estate. Responsibilities include designing infrastructure migrations, building automation solutions, and collaborating with engineers and developers. Requires strong Python and API development skills, experience with Terraform, Ansible, Bash, and Jenkins, and familiarity with F5 load balancers and virtualization platforms. Fluent English required.

Senior Ansible / DevOps Automation Engineer – Cloud & Kubernetes will design, implement, and maintain automation solutions for cloud platforms. Responsibilities include developing Ansible playbooks, managing CI/CD pipelines, and integrating automation with cloud environments like AWS, Azure, and GCP. Requires over 6 years of experience in automation, DevOps, or infrastructure engineering with strong Ansible system administration skills and experience with Kubernetes.

Senior Data / Solution Architect to design and implement enterprise data architectures across cloud platforms. Experience required in data modeling, data pipelines, AI enablement, and cloud technologies (Azure, AWS, or GCP).

Company DescriptionVisa is a world leader in digital payments, facilitating more than 215 billion payments transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories each year.

Experienced SAP SSM Consultants with German fluency are sought to support the online processing of benefit applications within the SAP S/4HANA Social Services Management component. Responsibilities include collecting requirements, defining workflows, and collaborating with stakeholders. Proven expertise in SAP SSM within the public sector and strong workflow configuration skills are required.

Develop and maintain web applications on the OutSystems platform. Implement user interfaces, integrate with APIs, and collaborate with teams.

Senior Data Engineer will design and implement data platform systems for a US-based private equity and investment management fund. Responsibilities include developing PoCs, delivering production-grade applications, and creating solutions for data scientists and business analysts.

Experienced Test Coordinator with business analysis skills needed for a large-scale digital transformation program. Responsibilities include creating test documentation, coordinating testing activities, and managing defects. Requires 5+ years of experience coordinating E2E or UAT testing in complex environments and strong communication skills.

Unfolding Your Next Role We are looking for an experienced Senior . NET Developer to design, build and support system integrations between a registry platform application and multiple third-party systems, including document generation platforms and payment service providers.

Experienced Technical Leader sought for AI Division. Lead a team of ML engineers, shape AI strategy, and deliver innovative projects. Requires 10+ years software engineering/research experience, 7+ years in Machine Learning, and expertise in Computer Vision or Agentic AI.

Senior Full Stack Developer to design, build, and optimize scalable features for a SaaS platform using Laravel (backend) and React.js (frontend). Requires 6+ years of experience with Laravel and React, JavaScript/TypeScript, PHP, HTML5, CSS, and MySQL 8. Proven experience mentoring engineers and leading technical initiatives.