ruby English-speaking jobs in Bielsko-Biała

IT Analyst needed for a project focused on payment systems. Requires 5+ years of experience in IT/business analysis, knowledge of banking and payment domains (SEPA, Swift, ISO), and experience with reconciliation processes. Must have SQL, UI prototyping, Jira, and Confluence experience. Strong analytical and communication skills are essential.

Senior Software Engineer to develop and enhance a cloud-based solution for quick-service restaurants. Responsibilities include designing, developing, and maintaining frontend and backend components, building APIs and services with Node.js, and implementing microservices and event-driven systems. Requires 5+ years of full-stack experience, proficiency in JavaScript and TypeScript, and experience with AWS cloud platforms.

Account Manager to strengthen HMI service line. Manages customer relationships, drives revenue growth, and supports sales and pre-sales activities. Requires experience in IT project management, pre-sales, and the SDLC. Fluent English (C1 level) is essential.

Senior Data to Analytics Specialist to develop Celonis solutions, design dashboards and analyses, and ensure high quality data models. Translate business use cases into technical solutions, optimize performance, and collaborate with process experts. Requires 5+ years experience in data engineering, analytics development, or process mining with strong SQL skills and experience with process mining tools.

Staff Software Engineer will set technical strategy, collaborate across teams, and ensure operational excellence for Identity Data Management, Verification, and Decisioning capabilities in international markets.

Senior Insights Analyst will support product managers in making data-driven decisions about feature development and user engagement. Responsibilities include defining product success metrics, analyzing product performance, identifying improvement opportunities, and designing experiments. Requires a BA/MSc in a quantitative field, 5+ years of experience with SQL, data visualization tools, and experimentation. Experience with programming languages and cloud data warehouses is preferred.

Data Scientists at Revolut build and lead data science teams, improving algorithms, developing PoCs, and delivering data-driven solutions to enhance product performance.

Head of Legal for international financial services company. Leads legal function across multiple jurisdictions, develops legal strategy, ensures compliance with financial services regulations, and provides legal support for business initiatives.

Data Analyst / Data Business Analyst needed to bridge business needs and technical solutions. Analyze business processes, datasets, and systems to identify trends and opportunities. Develop automated data lineage solutions and apply advanced analytics methods. Translate technical designs and data concepts into business-friendly language. Minimum 5 years of experience required. Strong analytical, problem-solving, and communication skills needed. Fluent in English and Polish.

Staff Backend Engineer to design and implement complex features for Casino and Sportsbook apps. Contribute to technical design, code reviews, and mentorship. Requires 8+ years experience, strong communication, and expertise in Java, Spring Boot, AWS, streaming technologies, and containerization.

IT Infrastructure Engineer needed to design, build, and support IT infrastructure for offices and labs. Responsibilities include technical planning for construction projects, collaborating with facilities and technical teams, and managing network room engineering and documentation. Requires 5+ years of experience in telecom consulting, construction project management, or low-voltage installation.

Develop and debug C++ source code, participate in software design creation, and work with global teams. Requires a Bachelor's degree in Computer Engineering or Computer Science and knowledge of Qt, QML, and Linux.

Senior Market Data & Risk Business Analyst will collaborate with stakeholders to optimize FX position and P&L sharing processes. Responsibilities include analyzing data exceptions, partnering with Traded Risk and IT teams, developing tooling for data visualization, and documenting business requirements. Requires at least 4+ years of experience in markets, securities services, or financial data analysis, strong knowledge of Market Products, Data Management, and Risk processes, and advanced proficiency in Microsoft Office Suite.

Site Reliability Engineer to join our infrastructure team. Operate and maintain Kubernetes-based infrastructure across multiple datacenters. Support and troubleshoot stateful workloads in k8s. Manage monitoring, alerting, and observability stacks. Contribute to GitOps workflows and provide SRE-level support to game studios. Solid hands-on experience with Linux systems and Kubernetes administration required. Experience operating and troubleshooting stateful services in k8s is necessary. Familiarity with GitOps approach and tools is needed. Monitoring and observability experience with Prometheus ecosystem, VictoriaMetrics, Grafana, and AlertManager is required. Practical experience with ELK/OpenSearch stack is needed. Solid scripting skills (Bash); ability to read and modify Python. Understanding of networking fundamentals is required. Experience with HashiCorp Vault or similar secrets management solutions is needed. Familiarity with Ansible for infrastructure automation is required. Ability to troubleshoot complex distributed system issues under production pressure. Strong communication skills are needed. Experience working with Jira-based workflow and documenting in Confluence.

The Supply Finance Analyst supports value creation and efficient supply chain operations. They collaborate with finance and non-finance stakeholders to support financial processes, period-end, and S&OP+ activities. The role requires 3+ years of relevant experience, technical accounting knowledge, and strong analytical skills.

Technical Customer Success Manager guides creators through app build, QA, App Store submission, optimization, and long-term stability. Responsibilities include troubleshooting platform configurations, advising on backend setup, and diagnosing root causes of feature friction. Requires 2+ years of experience in Technical CSM, Solutions, or SaaS implementation roles with a focus on supporting SaaS or app-based platforms.

Swarmer seeks a General QA Engineer with automation skills to develop and execute test plans, build test suites, and ensure quality across software solutions. This role involves collaborating with engineering teams, identifying and resolving defects, and advocating for quality throughout the product lifecycle.

This role provides comprehensive project management for client software delivery, collaborating with developers, consultants, and clients. The ideal candidate is an experienced technical project manager who can lead software consulting projects, manage diverse stakeholders, and solve complex problems.

Mobiz seeks an experienced Senior IT Project Management Consultant to deliver complex infrastructure transformation and Azure cloud migration projects for international clients. The Consultant will manage projects, coordinate deployments, and report on project performance.

Cloud DevOps Engineer responsible for the day-to-day operations of cloud-based applications and services. Tasks include designing, implementing, and maintaining CI/CD pipelines, managing IaC solutions, monitoring system health, troubleshooting issues, and ensuring security compliance. Experience managing daily operations in AWS or multi-cloud environments is required.