react English-speaking jobs in Bytom

Flovi seeks a country-dedicated AI-oriented Full Stack Developer for Poland. You will work with the Warsaw team to solve operational bottlenecks and customer issues using AI-driven development. This role requires strong full stack capability, independent architectural thinking, and a growth mentality. Selected candidates will participate in a CTO interview and build an application based on given specifications.

Develop, implement, and maintain automated testing solutions to ensure software quality and performance. Collaborate with developers, QA specialists, and team members to improve testing processes.

Licensed psychiatrist with clinical experience needed to design psychiatric case scenarios, develop training datasets, and evaluate AI outputs. Must have expertise in DSM-5/ICD-10, psychopharmacology, and psychotherapy.

Full-Stack Developer with Java backend (Spring/Spring Boot) and React.js or Next.js frontend experience. Must have hands-on XP experience including TDD and pair programming.

Build and automate tools for employment compliance, integrate APIs, and design new features. Collaborate with the founding team to develop prototypes and MVPs. Requires 5+ years of software engineering experience, strong communication skills, and expertise in Python, Postgres, SQLAlchemy, FastApi, and mypy.

Senior AI NodeJS Engineer to design and build AI Agentic solutions. Collaborate with cross-functional teams, define technical requirements, and implement features across the software lifecycle. Experience in full-stack development using NodeJS (with TypeScript) and at least 1 year in an AI Engineering role is required.

Citrix Engineer needed for remote work supporting international Citrix Systems environments. Requires 7+ years of experience in Citrix VDI support and solution design, strong troubleshooting skills, and advanced knowledge of Citrix XenApp, XenDesktop, and VMware products.

Senior/Lead AI DevOps engineer needed for leading architecture and deployment of AI/ML/GenAI solutions. Expert in Linux/macOS, Python, IaC (Terraform, Ansible), CI/CD (Azure DevOps, GitHub Actions, Jenkins), and Azure cloud. Strong leadership and communication skills required. Fluency in English.

Lead sourcing activities with external suppliers, communicate supply constraints, and collaborate with Procurement Category Leads on strategic initiatives. Work closely with internal stakeholders to understand their needs, set joint targets, and provide procurement expertise. Cultivate supplier relationships, develop robust supply agreements, and utilize market intelligence to mitigate risks and enhance competitive advantage.

End-to-End accountability for network platform (tools, monitoring, and management systems). Collaborate with architects on roadmap, infrastructure initiatives, and new service design. Control outcomes/reports from ongoing processes and oversee mandatory processes, risks, and audits. Manage relationships with Business Product Owners, Enterprise Architects, Vendors, and the Supplier. Plan and scope work for the Network team related to the managed platform.

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.

Lead integrated marketing campaigns for higher education and nonprofit clients. Develop and execute marketing plans, manage budgets, and oversee project workflow. 7-10 years of agency or in-house marketing experience required.

Leads, mentors, and grows a team of senior software engineers. Provides technical and architectural guidance for large-scale backend systems. Ensures systems are designed for scale, reliability, and operational excellence. Collaborates with Marketing, Product, SRE, and other Engineering teams. Continuously improves team processes and engineering practices.

Senior DevOps Engineer to maintain OpenStack and Kubernetes infrastructure for T-Mobile Poland's cloud native stack. Responsibilities include infrastructure management, cloud native cluster implementation, and on-call support. Requires experience with cloud solutions, virtualization, automation tools (Ansible, Juju), scripting, and network troubleshooting. Willingness to obtain data security clearance is required.

Solution Engineering Enablement Partner will build, implement, and manage enablement programs for the sales organization. Collaborate with SE leadership, onboarding teams, and SMEs to define and execute the global SE enablement plan. Requires 10+ years of experience in enterprise software, solution engineering, and enablement in the data space. Deep technical expertise in database, SQL, and/or Python is required. Snowflake experience is a plus. Fluent Japanese and business-level English required.

Lead and execute IAM projects focused on CyberArk and One Identity Manager, ensuring alignment with security architecture and driving impactful outcomes.

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.

Experienced Android Developer sought to build and maintain mobile banking applications. Key technologies include Kotlin Multiplatform, Jetpack Compose, and CI/CD. Requires 5+ years of Android development experience, 3+ years with Kotlin Multiplatform, and fluency in Polish.

Mid-senior AI Software Engineer to build and ship AI-powered features. Develop agentic workflows, integrate with LLM APIs, build REST APIs, and contribute to React/Next.js applications.

Senior SAP Cloud Security Lead with 8+ years of experience in SAP security projects, particularly S/4HANA transformations. Expertise in application security, IT controls, RBAC, and user access management processes. Hands-on experience with SAP BTP, CIS, IAG, and integrating with corporate identity tools. Responsible for designing, implementing, and testing cloud security roles and processes, collaborating with partners, and documenting security procedures.