102 English-speaking jobs in Częstochowa

Build and improve core ML components for a production AI assistant. Focus on data, training, evaluation, and inference using Python and PyTorch/JAX. Diagnose production issues and deliver iterative improvements.

Design and operate secure network segmentation using Check Point, Palo Alto, Zscaler, and Cloudflare. This role involves architecture, engineering, and L3/L4 operational leadership for policy-driven connectivity.

Lead end-to-end AI, ML, and Big Data projects for international enterprise clients. Act as delivery owner, consultant, and team leader, managing scope, quality, and stakeholder alignment. Requires experience in AI/data projects and strong client-facing skills.

Senior Full Stack Engineer focusing on frontend. Design, develop, and maintain full-stack features using Angular, TypeScript, and SQL. Experience with REST APIs, JSON, Kubernetes, and the agricultural sector is required.

Senior Data Scientist role requires 4+ years in data science, focusing on developing predictive models and analyzing complex datasets. Must have experience with Databricks, Python/R, and strong analytical skills.

iOS Developer needed for a large-scale e-commerce platform. Build responsive native iOS interfaces using SwiftUI and UIKit. Requires 4+ years of Swift/iOS SDK experience, knowledge of security, networking, and performance optimization.

Senior Fullstack Developer role focusing on React, C#, and .NET microservices. Responsibilities include end-to-end development, building intelligent forms, and deploying to Azure Kubernetes via Azure DevOps. Requires independent work and fluent English.

Seeking an independent Delivery Manager to lead distributed technical teams. Responsibilities include quarterly planning, sprint management, JIRA ownership, and incident coordination. Requires experience in Agile/Scrum within infrastructure projects and fluency in English.

UX Designer roles focus on design for complex tooling at the intersection of design and engineering. Responsibilities include interaction design, prototyping, and close collaboration with engineers throughout the development cycle.

Mid/Senior Backend Engineer (Java) to build payment orchestration services for a greenfield gaming platform. Requires 4+ years of Java/Spring Boot experience, microservices, and strong backend skills.

Experienced Platform/System Validation Engineer needed to guarantee networking platform resilience and performance. Responsibilities include SONiC bring-up, automated testing, and soak testing. Requires Python/C skills and knowledge of networking protocols.

Senior Data Scientist to improve large-scale analytics and detection systems in a cybersecurity product ecosystem. Focus on simplifying complex logic, investigating data flows, and optimizing production systems using Python and SQL.

Mid.NET Developer to build a next-gen network monitoring platform. Requires strong C# and .NET experience, ASP.NET Core, REST APIs, and SQL. Work on scalable solutions in an international, Agile environment.

Senior Technical Product Manager will architect the platform's performance, scalability, and security. Responsibilities include driving the roadmap for core engine capabilities, containerization, and cloud-native operations. Requires 8+ years of experience in enterprise product management, software engineering or field engineering, and fluency in English.

Senior Android Developer to design and maintain high-quality Android apps using Kotlin and Java. Lead architecture for VPN features, focusing on complex networking, DNS, and connectivity issues. Requires 7+ years experience and strong knowledge of Android SDK and networking concepts.

Senior Data Analyst role supporting a leading European online car marketplace. Focus on marketing analytics, strategic integration, and M&A data alignment. Requires 5+ years in marketing analytics, SQL, and building data pipelines.

Senior iOS Product Designer needed to design real, shipped B2C iOS applications. Own the end-to-end design process, from research to launch, collaborating with Product and Engineering. Requires 5+ years of experience with launched consumer products.

Security Workstream Lead to own security operations and governance for enterprise AI agents and Copilot solutions. Focus on security-by-design across the Microsoft Copilot ecosystem, identity, data protection, and threat detection.

Senior IBM i Administrator & Power Systems Infrastructure Engineer providing technical leadership for IBM Power environments. Responsibilities include managing infrastructure, OS upgrades, security, and designing disaster recovery solutions.

Experienced Business Analyst needed for a global tax technology product. This role bridges Tax, Business Analysis, and IT, translating tax needs into clear requirements for development teams. Requires experience in requirements gathering and stakeholder management.