ruby English-speaking jobs in Bielsko-Biała

Senior Software Engineer will design, build, and maintain large-scale services and systems. Responsibilities include developing architecture, working with stakeholders, solving complex problems, and improving engineering standards. Requires 5+ years of experience as a Software Development Engineer with proficiency in programming languages like Go, C#, C/C++, or Python, and JavaScript frameworks like React, Next.Js, Vue.Js, or Angular. Experience with microservices architecture, distributed systems, and databases is essential.

Leads a team of recruiters/administrators in all aspects of people management, coaching, and mentoring. Responsible for planning and executing campus recruitment activities, managing stakeholder relationships, and overseeing team performance and development. Ensures recruitment services are delivered in line with contractual obligations and client service level agreements. Collaborates with hiring managers, campus recruitment team, and internal stakeholders. Must be fluent in English and German.

Build AI-powered infrastructure for VC and PE firms, including agentic AI systems, full-stack applications, and data platform engineering. Translate business needs into technical solutions and own delivery end-to-end. Must have experience shipping production AI/LLM systems and proficiency in an AI-native coding workflow.

Software Engineers will design, develop, and maintain a library combining networking, gameplay, and community features for online games. Responsibilities include proposing and implementing application architecture, supporting developers, and staying abreast of new technologies. Proficiency in modern C++ is required.

Senior Backend Engineer will architect data pipelines, ensure data quality, and optimize event-driven architecture. Requires 6+ years of experience with backend systems, complex data processing, Node.js, and advanced SQL.

Data Architect to build a next-generation cloud data and AI platform on AWS. Define and evolve the end-to-end data platform architecture, including ingestion, lakehouse/warehouse, orchestration, governance, and AI enablement.

Data Engineer to design, implement, and optimize batch and streaming pipelines using Beam, Spark, or Flink. Experience with GCP (Dataflow, BigQuery, Pub/Sub) and Apache Beam is required. Strong Java skills and experience with Airflow are also necessary.

Finance Analyst Partner responsible for ensuring data quality and timeliness of reports. Leads incident management, user support, and communication with partners. Requires fluency in French and English, finance/accounting experience, and proficiency in Excel and PowerPoint.

Finance Business Partner to strengthen financial governance and strategic alignment across multiple countries. Consolidate global business plans, define transfer pricing principles, and ensure compliance with Group financial policies. Oversee Shared Service Center operations and act as a single escalation point for cross-country finance matters.

Lead and scale marketing automation strategy, designing, implementing, and optimizing automated campaigns across various platforms. Manage customer journey orchestration, segmentation, and performance tracking. Collaborate cross-functionally to deliver integrated marketing initiatives.

Supports delivery of digital or transformation projects by managing activities, timelines, and deliverables. Tracks progress, risks, and issues. Collaborates with stakeholders and vendors.

Mid/Senior React Developer needed for MUI 9 migration project. Build a central SSR-compatible component library using MUI 9, Next.js, and Storybook. Expert-level React knowledge, MUI 9 experience, and SSR/CSR understanding required. At least 5 years of relevant frontend experience and component library experience necessary.

Senior Full Stack Engineer (.NET + React) to design software architecture, lead UI improvements, and implement solutions. Analyze requirements, create documentation, and manage changes across the Service Management lifecycle.

Lead the design and delivery of digital products, including solutions design, component development, and problem-solving. Requires 7+ years of full-stack development experience, 3+ years in Node.js backend development, and 5+ years in React + Redux frontend development. Experience leading design and delivery, databases (MongoDB), code quality assurance, and fluency in English and Polish are also necessary.

Senior DevOps / Platform Engineer will design and implement Infrastructure as Code and GitOps mechanisms for managing environments. Responsibilities include building CI/CD pipelines, implementing AWS infrastructure in Terraform, and preparing technical documentation.

QA Engineer to join an Agile team ensuring high-quality software delivery across web platforms. Responsibilities include manual and automated testing, test case creation, and contributing to test automation development (Playwright/Python). Experience in API testing (Postman), CI/CD testing processes (GitLab CI), and test case management tools is required.

QA Engineer roles available, one focused on front-end (Salesforce, UI testing) and the other on back-end (API testing, SQL, microservices). Collaborate with engineering teams on new features, test planning, execution, and release sign-off.

Senior Quality Engineer will design, execute, and optimize automated tests across various levels (functional, integration, contract, performance, and load). Experience with JavaScript/Typescript automation, API testing (Rest API), Playwright, and cloud platforms (preferably AWS) is required.

Software Engineer will build and maintain developer tooling, design and improve CI/CD pipelines, and develop and manage AWS cloud infrastructure. Responsibilities include partnering with application engineers to identify and solve problems, write production-grade code, and support application teams. Requires a BS/BA degree in Computer Science with 5+ years of relevant experience, strong programming skills in TypeScript/JavaScript or Python, and experience building and operating solutions in AWS.

Test Developer with strong Python skills and experience in CI/CD pipelines, unit testing, and API integration. Familiarity with Jenkins, GitHub Actions, Kubernetes, Docker, and Poetry is required. AI/ML knowledge is a plus.