ruby English-speaking jobs in Bielsko-Biała

Senior Mainframe Specialist will analyze, design, and execute migrations of Broadcom/CA mainframe technologies to alternative solutions within a banking environment. Requires experience with IBM z/OS, Endevor, and mainframe scripting languages.

Finance Accounts Receivable Sr. Associate supports global HedgeServ entities with a range of accounts receivable duties. Responsibilities include daily variance analysis, revenue discrepancy identification, month-end closing activities, and communication with internal stakeholders. The role requires a bachelor's degree in business, accounting, or finance, 3-5 years of relevant experience, fluency in English (C1 level), and strong Excel skills.

Design, build, and optimize scalable machine learning solutions in Azure cloud environments. Implement DevOps practices for ML workflows, including CI/CD, version control, and automation. Collaborate with data engineering teams to improve data ingestion, transformation, and model deployment.

The P&L Analyst will consolidate, analyze, and report the Head Quarter P&L, lead financial planning and forecasting, and act as a finance partner for corporate departments. The role requires a Master's degree in a relevant field and 3-7 years of experience in controlling, financial analysis, or audit.

Define and govern RPA architecture standards and best practices. Review and guide solution designs for scalability and compliance. Support development teams with architectural decisions and quality assurance.

Solution Architect designs, develops, and maintains data-driven products for Finance Analytics. Builds scalable, reliable solutions including dashboards, tools, and data applications. Drives engineering best practices and mentors team members. Requires 8+ years of leadership experience and 5+ years of hands-on experience with Azure data engineering tools.

Senior Staff Software Engineer drives the technical vision of our platform, designing, building, and evolving scalable, reliable systems. You will collaborate with Engineering Managers, Directors, and Product leadership, mentoring engineers and taking ownership of complex technical challenges.

Leads product strategy and execution for Vonage's BSS & Platform Services, including Lead-to-Cash, Data Analytics, Identity Management, Accounts & Users, and API Gateway. Manages a team of product managers and collaborates with Engineering, Operations, Sales, and Marketing to drive growth and profitability.

Lead AI projects end-to-end, from understanding business needs to delivering measurable operational results. Collaborate with data scientists, ML engineers, and automation teams to shape AI solutions for logistics operations, customer service, and process optimization. Manage the project lifecycle, including discovery, PoC/MVP, pilot, scaling, maintenance, and continuous optimization.

Senior Datacenter Engineer with 4-5 years of experience designing and implementing large-scale enterprise and datacenter networks. Deep understanding of networking and datacenter technologies beyond standard configurations. Practical experience in network automation using IaC tools (Ansible, Terraform, Python).

Mid Full Stack Developer with AI experience needed for a maritime operations platform project. Responsibilities include migrating legacy systems, building new features, and integrating AI-powered document processing. Requires 3+ years of full-stack development experience with React, Python, Django, and PostgreSQL. Daily use of AI tools is essential.

Senior Android Consultant will develop Android applications in Kotlin using Jetpack Compose, design solutions with MVP and MVVM patterns, and integrate apps with backend services.

Leads and supports product and packaging innovation projects from concept to launch for a leading CPG client. Ensures projects are delivered on time, within scope, and at the highest quality standards.

Senior Scrum Master / Agile Coach needed for several Scrum teams in a SAFe environment. Facilitate Agile ceremonies, collaborate with Product Owners, and promote continuous improvement. Must have 3+ years of Scrum Master experience, including 1 year in SAFe, and fluency in English.

Software Development Engineer to develop new features and improve existing solutions for EDA products. Requires proven experience with C++ 11/14/17 and strong algorithms/math skills.

Local IT Support Technician provides deskside and remote support for hardware, software, and systems. Must have at least one year of IT support experience, excellent English and Polish communication skills, and the ability to work independently and collaboratively.

Develop and maintain a long-term sales and monetization strategy for a game. Partner with production and live operations teams to maximize revenue while preserving a high-quality player experience. Analyze performance trends, adapt strategies, and ensure monetization mechanics are integrated with game systems.

Design, develop, and optimize pioneering algorithms for GPU and CPU accelerated data processing software libraries. Lead and mentor library engineers, collaborating with leadership and partners to define technical roadmaps.

Senior .NET Developer will design, implement, and maintain configuration solutions. Responsibilities include developing new features, unit and integration testing, and participating in continuous integration. Requires a Master's degree, 8+ years of experience, strong C# and .NET expertise, and experience with front-end development.

Callstack seeks an experienced Head of Portfolio Delivery to lead a 150+ person team and manage a portfolio of 150–200M PLN in annual revenue. Responsibilities include ensuring project delivery, financial health, client relationship management, and strategic collaboration with engineering and customer success teams. The ideal candidate has 10+ years of experience in delivery management, a proven track record of P&L ownership, and strong communication and leadership skills.