frontend developer English-speaking jobs in Jaworzno

Senior QA/Test Engineer to implement testing and QA activities for data pipeline improvements within a Databricks Lakehouse environment. Requires strong Python-based testing experience, including unit testing and data quality frameworks.

Provides mission-critical support to the Chairman of the Board during a global expansion phase. Manages scheduling, communications, and travel logistics for high-level events and negotiations. Serves as a liaison between the Chairman and senior leadership. Requires discretion, loyalty, and the ability to operate effectively in high-stakes environments.

Senior Android Developer to design, develop, and maintain Android applications using Kotlin and Java. Collaborate with teams to deliver new features and ensure high code quality. Requires 5+ years of experience, proficiency in Kotlin, and knowledge of Android SDK, Jetpack libraries, and MVVM architecture.

Software Developer graduates with a computer science background will collaborate on projects, write code, and contribute to team goals.

Provides administrative support for training activities, including course registration, participant communication, attendance processing, and purchase order handling. Requires experience or interest in training or administrative support, strong organizational skills, and fluency in French.

Design, build, and deploy machine learning models with a focus on graph algorithms and Graph Neural Networks. Analyze large datasets to identify patterns and trends, leveraging graph analytics to optimize supply chain networks. Translate business problems into data science projects, selecting appropriate tools and methodologies. Collaborate with various roles throughout project lifecycles.

Support the Business Development Representative and Field Hunting team in building pipeline in the Polish transport and logistics market. Research companies, identify decision-makers, and analyze fleet size and type. Contact target companies to secure meetings for sales representatives.

Design, implement, and optimize AI/ML models to support business processes.

Product Analyst needed to provide data analysis, recommendations, and A/B test implementations. Collaborate with product owners, developers, and UX teams. Requires 3+ years (Regular) or 5+ years (Senior) experience, advanced SQL skills, and A/B testing experience.

Software Engineering Manager will lead a team of 7-12 engineers, manage project goals, and contribute to product strategy. Requires 8 years of software development experience, 2 years managing teams, and experience architecting distributed systems. Experience with infrastructure systems, Linux, and virtualization is preferred.

Design and build scalable, low-latency backend services for a leading trading platform. Develop distributed and asynchronous systems ensuring reliability and fault tolerance. Optimize performance across JVM, databases, caching, and networking layers. Apply security best practices in handling client PII and financial transactions.

Manages daily export compliance activities, including screening, licensing, and shipment release. Ensures compliance with international trade regulations and supports audits. Develops and maintains trade compliance processes and trains operational teams. Requires a bachelor's degree and experience in export compliance operations or international logistics.

Technical Lead to define architecture, design scalable APIs, and lead a team of engineers. Experience with Node.js, React, microservices, cloud platforms (Azure, GCP), and Agile methodologies required.

Senior Agentic Infrastructure Engineer will lead development, mentor junior developers, and foster open source relationships. Expertise in AI/ML, Agentic workflows, Golang, Rust, Kubernetes, Python, and related technologies is required.

Provide IT support to employees, troubleshoot technical issues, and coordinate warranty and service work. Analyze logs, document processes, and implement established procedures.

Remote, contract-based position for Polish Translators and Linguists to annotate Polish text and audio for large language models. Responsibilities include translation, linguistic analysis, and ensuring culturally appropriate output.

Support the Global Media team in executing media campaigns across various channels to drive brand awareness and conversions. Manage smaller campaigns independently and assist with campaign checks, pacing reviews, and optimizations. Monitor campaign performance, prepare reports, and maintain documentation.

Experienced Data Scientist to develop and deploy machine learning models, build data pipelines, and lead data science teams. Requires proficiency in Python, PySpark, Azure, Databricks, and GitHub.

Planner 5D seeks an experienced Android Engineer to develop next-generation mobile experiences. Responsibilities include building custom views and APIs, optimizing performance, and experimenting with new features. Requires 7+ years of Android development experience, proficiency in Kotlin and Java, and understanding of Android frameworks, libraries, and best practices.

Senior Backend Engineer to develop core-banking technology and enhance the NatWest Boxed product. Requires Java, Spring Boot, Kubernetes, Docker, AWS, and Kafka experience.