hr English-speaking jobs in Legionowo

Senior Network Engineer to operate and improve global network and cloud connectivity. Manage environments using Palo Alto, Cisco Meraki, UniFi, and Azure networking. Ensure high availability and security across worldwide infrastructure.

UI/UX Designer needed to conceptualize and create intuitive user interfaces. Responsibilities include user research, design wireframes and prototypes, and collaborating with development teams.

Senior Data Scientist to develop and own scalable data pipelines, build machine learning models, and analyze large datasets. Requires a B.Sc./M.A/M.Sc. degree in a relevant field and 6 years of experience as a Data Scientist with Python and ML libraries.

Lead the development of a next-generation crypto and stablecoin wallet platform from concept to scale. This role requires building the product, team, and owning all product decisions in a fast-paced, AI-first startup environment.

Lead development of scalable, high-performance data pipelines and infrastructure. Requires 8+ years experience, advanced Python, and expertise in Apache Airflow, Databricks, and cloud data infrastructure.

Senior/Lead Software Engineer to design and implement robust, scalable, and secure software solutions. Requires deep understanding of modern and legacy architectures, cloud-native technologies, and integration of disparate systems.

Support Engineer role ensuring system stability and performance for market integrity. Requires software engineering experience, strong Linux expertise, and proficiency in languages like Java or Python.

Experienced commercial leader needed to build and embed a scalable CE commercial operating system. Focus on KPI alignment, financial accountability, forecasting, and sales enablement across markets. Requires 10+ years in Commercial Excellence or Sales Operations.

Architect and optimize end-to-end RAG pipelines for on-premises enterprise use cases. Implement and integrate LLMs with retrieval mechanisms using Python, PyTorch, LangChain, and Neo4j. Experience with vLLM, Docker, and Kubernetes is required.

Senior Data & AI Consultant to support data scientists and engineers with holistic consulting. Drive the full lifecycle from business development to implementation, advising clients on data and ML maturity. Requires 5-8 years of relevant experience.

This Vice President role drives liquidity monitoring for a global Treasury team, analyzing actual and projected liquidity and collateral positions across EU, UK, and Latin America. Responsibilities include regulatory monitoring and presenting insights to senior decision-makers.

Senior Product Manager to lead development of Bitcoin-focused enterprise software for banks and corporations. Requires 7+ years in a regulated environment with blockchain and crypto custody knowledge.

COMSEC Network Administrator with 10+ years of experience supporting U.S. Army Europe. Responsibilities include managing hardware, software, and cryptographic equipment, maintaining network performance, and ensuring system security. Requires Secret clearance and US citizenship.

Contractor on Demand to verify food industry management systems. Requires Bachelor's in food industry, 3+ years experience, and mandatory auditing qualifications for IFS Food and BRC Food.

Engineer and maintain the Microsoft 365 ecosystem, including Teams, SharePoint Online, OneDrive, and Exchange Online, at enterprise scale. Drive automation and platform governance for a global workforce.

Lead the design and evolution of large-scale Kubernetes-based platforms. Drive a Kubernetes-first, cloud-native vision, translating business needs into scalable technical solutions. Requires deep expertise in distributed systems and production Kubernetes.

Build high-throughput distributed systems for quantitative research, accelerating signal discovery and trading decisions. Engineer AI-assisted workflows using LLMs and modern ML infrastructure. Requires 8+ years in large-scale distributed systems with Python, Java, Scala, or C++.

Design, develop, and maintain custom extensions for Microsoft Dynamics 365 Business Central using AL. Implement integrations via APIs and OData, and support data migration. Work in Agile teams on various customer projects.

Develop and maintain sales and monetization strategy for games. Oversee sales forecasts, build partner relationships, and track KPIs. Requires senior experience in digital business operations and revenue growth.

Lead Engineer, Vulnerability & Exposure Management, engineers scanning, ingestion, normalization, prioritization, ticketing, and automation workflows for vulnerability data. Requires 5+ years in vulnerability management and experience with security tooling and automation.