4934 English-speaking jobs in Kraków

Senior/Lead Backend Engineer to design and develop scalable, distributed applications and microservices using Go. Focus on P2P systems, system-level programming, and performance-critical backend services. Collaborate with infrastructure, product, and DevOps teams. 5-6+ years of experience as a Senior or Lead Backend Engineer required. Strong hands-on expertise in Go and/or Java (Go strongly preferred). Proven production experience with P2P architectures is mandatory.

Analyze software failures, bridging customer support and development teams. Experience with hardware (TCP/IP, Ethernet, VoIP, Switches, Video surveillance cameras) is beneficial.

Plans and oversees enterprise-level support and service activities for company products and services. Develops client relationships and understands client business needs to identify service requirements. Acts as a single point of contact for service incident resolution and technical issue escalation. Generates reports and analyzes data from multiple sources.

Performance media buyer to drive growth across Meta and TikTok ads for DTC and ecommerce brands. Requires proven results managing paid media accounts, experience with testing and scaling, and strong understanding of creative strategy. Must be a strategist who can communicate clearly with clients and present plans, results, and next steps.

Data Architect / Analyst needed for a 16-week project (0.5 FTE). Responsibilities include managing program delivery, defining data catalog requirements, collaborating with SMEs, designing data models, and enhancing data quality frameworks. Requires experience with Microsoft Purview, Snowflake, conceptual data modeling, business glossary creation, and data quality methodologies. Strong program management and communication skills are essential.

Manages end-to-end solution design, ensuring alignment with architectural patterns, strategies, and business requirements. Delivers cost-effective, scalable, and secure solutions. Collaborates with global teams and influences the technology roadmap.

Senior Software Engineer – SRE will implement and maintain reliability solutions, develop automated solutions for system reliability, and participate in improving Service Level Objectives (SLOs), Service Level Indicators (SLIs), and error budgets.

Senior Software Engineer to design and implement .NET functionalities in a microservice architecture on Azure. Requires 5+ years of .NET application development experience, knowledge of microservices, and a focus on code cleanliness and security.

Senior Software Engineer will collaborate with a cross-functional team to develop scalable solutions using Aras Innovator infrastructure. Responsibilities include creating user stories, participating in planning, researching and prototyping, and writing automated tests.

Project Manager needed for a strategic Cryptography program. Manage projects from planning to completion, enhancing Key Management systems and processes. Strong cybersecurity background and stakeholder management skills required.

Design, develop, and maintain cross-platform mobile applications using Flutter. Collaborate with teams to build native Android and iOS features. Integrate with backend systems through RESTful APIs.

Network Architect to design, implement, and maintain enterprise-grade network infrastructure. Combines Data Center expertise with cloud networking skills to deliver secure, high-performance, and highly available solutions. Requires 7+ years of experience in network engineering, expert knowledge of networking protocols (TCP/IP, BGP, OSPF), and hands-on experience with AWS networking services.

Senior infrastructure consultant will design, operate, and optimize enterprise-grade Net App NAS environments. Responsibilities include troubleshooting complex incidents, leading resolution efforts, and collaborating with teams to ensure stable, scalable, and resilient data services.

Mid-level mainframe developer with IBM z/OS experience sought. Familiarity with COBOL and/or Assembler (willingness to learn). 2-3 years of mainframe development experience desired.

Project Manager – Product Launch will lead and coordinate end-to-end product launch projects across multiple regions and markets. This role supports the Commercial team in planning, preparing, and orchestrating go-to-market activities for new physical products.

The IT Category Manager executes global commercial strategies for infrastructure and end-user technologies. Responsibilities include spend analysis, market research, sourcing events, contract negotiation, and supplier relationship management. Requires 5+ years of experience in IT procurement, category management, or supplier management.

Designs and optimizes high-performance data pipelines for Alexa's business insights. Implements GenAI-assisted data quality monitoring and anomaly detection systems. Architects data ingestion solutions using AWS technologies. Collaborates with BI Engineers and Data Scientists to enable analytics and machine learning capabilities. Drives automation initiatives to scale data operations.

Scientist II to execute biochemical and cell-based screening assays in a fast-paced, automation-driven CRO environment. Responsibilities include preparing reagents, performing plate QC checks, and contributing to assay design and implementation. Requires a MSc in pharmacology, molecular biology, biotechnology or related discipline with minimum of 2 years’ experience in a biotech/pharma setting or Ph.D. in relevant biological sciences.

Finance System Project Governance Intern will assist with documenting business requirements, preparing for and executing testing activities, and supporting systems integration. The intern will contribute to process improvements and internal communication.

Senior Mobile Developer will design, develop, and maintain cross-platform mobile applications using Flutter. Collaborate with teams to build native Android and iOS features and integrate with backend systems.