hr English-speaking jobs in Legionowo

Experienced telecommunications professional needed for Senior Technical Account Manager role. Focus on business development, client relationship management, and solution selling for roaming and network security analytics solutions. Requires technical expertise in 4G & 5G network architecture, signaling firewalls, roaming analytics, and customer experience. Strong understanding of 3GPP, 5GMRR, GSMA FASG, and ETSI NFV specifications. Proven ability to manage large accounts and support sales team growth.

Design, build, and operate large-scale web scraping systems focused on Google and similar platforms. Responsibilities include building scrapers for dynamic pages, adapting to website changes, and ensuring data accuracy and reliability. Strong Python experience and knowledge of browser automation tools are required.

Lead the architecture, design, and technical strategy for complex microservices systems. Drive technical decision-making and architectural reviews, ensuring scalability, reliability, and maintainability. Mentor and coach engineers, fostering technical growth and promoting engineering excellence.

Principal Fullstack/Backend Engineer with a focus on Java and serverless technologies. Develop and optimize scalable backend services, architect RESTful APIs, and contribute to user-facing components. Lead and mentor a team, ensuring alignment with architectural standards and best practices. Experience with AWS Lambda, DynamoDB, API Gateway, SNS/SQS, and EventBridge is required.

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

Senior Android Developer needed for international projects. Develop new features, collaborate with designers and product owners, and ensure a seamless user experience. Requires 5+ years of experience with Kotlin, Android SDK, and Jetpack libraries. Strong understanding of architectural patterns, testing frameworks, and performance analysis tools.

Lead and develop analytics teams to architect a user analytics strategy, connecting product usage, lifecycle performance, and business outcomes. Manage two analytics teams with different reporting structures and ensure integrated, consistent analytics. Drive end-to-end analytics solutions and process improvements. Proven experience leading analytics teams in a SaaS environment, managing multiple teams, and influencing senior stakeholders. Hands-on product and user analytics experience with advanced SQL skills and experience with large datasets.

Lead and manage a team of Technical Program Managers (TPMs) in EMEA, providing technical guidance and escalation leadership for high-stakes customer issues. Establish and implement processes, operational standards, and clear status reporting for effective team execution. Champion a clear team charter, roles/responsibilities, and best practices for continual improvement. Build technical fluency and drive alignment with engineering and product leadership to break down strategic initiatives into roadmaps and track progress. Recruit, develop, and manage a best-in-class team of TPMs. Accountable for tracking and creating metrics to measure the success of implementation and usage, and developing and driving adoption campaigns.

Senior Rust Developer will design and implement high-performance, secure, and scalable peer-to-peer networking protocols. Develop distributed systems for decentralized AI nodes to communicate and collaborate. Ensure robust fault-tolerance and resilience in networked systems. Collaborate with blockchain engineers, protocol developers, and AI researchers. Optimize performance for diverse computing environments. Contribute to open-source projects and documentation.

Full Stack Software Engineer will own and lead product features end-to-end, from research and design to implementation, testing, and shipping. Responsibilities include leading engineering architecture, mentoring other engineers, and designing scalable backend systems and responsive UIs. Must have 2-6 years of professional full-stack experience and proficiency with Claude Code and AI-native development workflows.

Leads and oversees the development and execution of commercial strategies to drive revenue growth and market share. Manages sales and marketing teams, identifies business opportunities, and conducts market analysis. Collaborates with cross-functional teams to ensure alignment with legal, scientific, and operational standards. Oversees budgeting, financial planning, and performance tracking for commercial operations.

Senior Treasury & Equity Administration Analyst will manage day-to-day treasury operations including cash management, investments, and bank relationships. The role will also ensure the correct administration of the company's equity awards and repurchases. Responsibilities include developing cash initiatives and reporting, investigating payment exceptions, and preparing board material for equity-related approvals. The ideal candidate will have a Bachelor's or Master's degree in Accounting or Finance and 3-5 years of corporate treasury experience.

Product Owner needed for ETD/Trading Systems project. Drive IT development schedules, coordinate with stakeholders, and track upgrades. Requires strong business analysis, project management, and ETD execution knowledge. Must have experience with ETD systems (TT, UL) and fluency in English and Polish.

Senior Software Engineer will create frameworks and tools for continuous integration, releases, and infrastructure observability. Responsibilities include maintaining automated processes, troubleshooting failures, and contributing to the design and implementation of tools and infrastructure. Requires up to 5 years of experience in networking and vCenter, SRE practices, and scripting. Strong programming skills in Python are essential.

BigData Engineer to build and improve data solutions for a leading Polish bank. Responsibilities include writing and maintaining data pipelines, processing large datasets with Apache Spark, and ensuring data reliability. Requires 3+ years of Python or Scala experience, Spark expertise, and knowledge of data warehouse principles.

Manage multiple consulting projects for pharma and life sciences clients, ensuring on-time and on-budget delivery. Contribute to new business development, client base maintenance, and development of new offerings.

Senior Developer to plan and execute development of WCF-based web service systems. Requires strong C#, .Net, and WCF knowledge, experience with SOA, and database technologies. Must be able to deploy, maintain, and test services, and possess a strong understanding of security and performance optimization.

Develops new components for a Design System using React technologies and Vanilla JS. Manages technical debt and escalates risks. Requires strong JavaScript, TypeScript, React, and Node.js knowledge.

Senior Product Data Scientist (Analyst) will design experiments, analyze data, and develop narratives to inform product strategy for Asana's Mobile team. Responsibilities include defining and tracking product success metrics, building dashboards, and communicating findings to both technical and non-technical audiences.

Software Engineer will design and implement backend services for high-performance, distributed systems. Responsibilities include creating well-tested code, collaborating across teams, and taking ownership of technology decisions. Experience with Python, testing frameworks, and the full development process is required.