java English-speaking jobs in Bytom

Senior Backend Engineer to design and build Java services for AI platform, including multi-agent conversational AI, predictive analytics, and member engagement.

Senior Backend Engineers (Java) will design, build, and deliver scalable APIs, working within the full development cycle and directly impacting the end user experience. Experience with Spring Boot, GCP, Terraform, and CI/CD pipelines is required.

Tether seeks a Performance Marketing & Customer Acquisition Manager to develop and execute performance marketing strategies across paid media channels. This role will drive customer acquisition through targeted campaigns, manage media spend, and analyze campaign performance.

Senior DevOps Engineer will build, automate, and fix formatting of large-scale systems. Collaborate with Engineering, Quality Assurance, and Support teams. Contribute to the architectural design and implementation of infrastructure on-premise and in AWS. Implement secure, resilient architectures following AWS Well-Architected Framework best practices.

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.

Senior Data Engineer specialized in Data Visualization will build dashboards, data visualization experiences, and advocate for self-service data. The role requires 4+ years of experience in data visualization, business intelligence, data engineering, or related fields. Proficiency in SQL, Python, and a major cloud platform is essential.

Provide L1 network support for voice and mobile services, ensuring reactive repair activities with customers, suppliers, and third parties. Monitor and investigate fraud events, define and implement improvements in fraud prevention services, and communicate with customers and suppliers for complaint resolution.

Leads, mentors, and develops a team of accounting professionals. Oversees the preparation of financial statements and ensures compliance with GAAP or IFRS. Establishes internal controls and coordinates audits. Collaborates with other departments and tax professionals. Identifies process optimization opportunities.

The Endpoint Security Engineer provides advanced endpoint support, identity administration, and security tooling operation across client environments. This role requires independent execution, strong judgment, and experience with EDR, RMM, and application control tools.

Senior Software Engineer to design, develop, and optimize core APIs and data services for a SaaS platform. Expertise in TypeScript/JavaScript, C#/.NET, and Azure cloud development required.

Supports end-user requests, maintains automation rules, and develops workflows within a Jira environment. Manages Xray Test Management configurations, Structure for Jira boards, and resolves configuration issues. Develops Python scripts or REST integrations for reporting and automation. Participates in incident resolution and cloud migration initiatives. Requires 2 years of Jira Administration experience, knowledge of Jira Automation, JMWE, Structure, and Xray plugins, and proficiency in Python scripting or REST API integrations.

The EMEA Data Centre Operations and Service Manager will oversee the daily, secure, and efficient functioning of technical facilities within data centers. Responsibilities include maintaining existing data centers, implementing IT service methodologies, managing vendor relationships, and ensuring safety compliance.

Senior Technical Program Manager will lead infrastructure and development projects in cloud and data center environments. Responsibilities include driving project delivery, managing risks and issues, optimizing project estimation and team capacity planning, and translating business objectives into technical roadmaps. Requires experience leading projects using modern SDLC methodologies and Agile/Scrum practices, deep knowledge of SRE, Cloud Engineering, DevOps, and Security practices, and strong technical fluency in cloud platforms.

Develop distributed microservices to protect millions of users from malware. Collaborate with a team to build and maintain services in Golang. Experience with distributed technologies, NoSQL databases, and system design is 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.

Power Distribution Services Sales Engineer will develop and execute sales strategies, manage customer accounts, and identify solutions to meet customer needs. Requires a Bachelor's degree and 5+ years of experience in sales and business development for power distribution products and solutions. Fluency in English is required.

Provide technical support and configuration for OpenText Archive Center and Core Archive Connectors. Lead testing, troubleshooting, and training for OpenText solutions. Identify and implement system improvements.

The Sales Director will lead and develop a regional sales team to drive business growth and market share in Eastern Europe. This role requires experience managing complex projects, exceeding sales targets, and collaborating with cross-functional teams. Fluency in English is required, other European languages are preferred.

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.

Designs, implements, and manages Apigee Edge and Apigee X environments, including proxies, policies, and API products. Collaborates with architects and developers to deliver secure, scalable API solutions. Troubleshoots API performance and implements API lifecycle management.