12855 English-speaking jobs in Masovian Voivodeship

QA Engineer focused on performance testing Web and API applications. Collaborate with developers to identify and resolve defects. Document testing outcomes and participate in Agile rituals. Requires 3+ years of experience in manual testing, knowledge of testing methodologies and tools, and strong understanding of client-server architecture. Experience testing REST APIs, WebSocket communication protocols, and system integrations is essential.

Mastercard Developers seeks a Senior Product Developer to design and deliver platform features, with a focus on AI-driven solutions. The role involves collaborating with engineering, QA, UX, and infrastructure teams to own the product development lifecycle. Requires experience in AI, machine learning, or data science, and strong communication and problem-solving skills.

Shape the technical foundations of a cloud-based software platform built on AWS. Define and steward integration architecture across products and ecosystems. Lead technical strategy on foundational capabilities, ensuring scalability, security, and reliability. Mentor senior and mid-level engineers.

Senior DevOps Engineer to design, build, and maintain AWS-based infrastructure for high-performance analytics platforms. Experience with Terraform, Kubernetes, CI/CD tools, Docker, and databases like MongoDB and PostgreSQL is required. Responsibilities include infrastructure automation, container orchestration, and backend development using Scala and Python.

Senior Software Developer will design, implement, and refactor unit testing features for ReSharper and Rider. Requires 5+ years of .NET development experience, strong problem-solving skills, and knowledge of algorithms and data structures.

The Data Governance Lead establishes and manages the enterprise data governance framework, ensuring data accuracy, accessibility, and compliance. This role drives initiatives such as Data Lifecycle Management and the implementation of the data catalog. The Data Governance Lead collaborates with business units, product teams, privacy, security, and legal teams to align governance with operational goals and ensure compliance.

Design and build production-grade AI agent systems on Azure using Microsoft Extensions AI, Azure AI Foundry, and agentic frameworks. Develop and maintain REST microservices hosted on Azure Container Apps. Integrate agents with external APIs, internal services, and enterprise data sources.

Senior Java Developer to design, develop, and maintain high-performance Java applications for electronic trading platforms. Requires 10+ years of core Java experience, including multithreading and concurrency, and prior experience in banking or financial services.

Experienced Oracle Fusion technical consultant with 6 to 10 years of experience supporting critical business operations. Expertise in Financials/HCM/SCM modules, data migration, report development, integration using Oracle Integration Cloud Service, and application performance monitoring. Strong knowledge of PL/SQL and Oracle REST and SOAP API.

SAP BTP technical expert needed for 2-month remote contract (potential extension). Developments on SAP Build Apps forms, Process Automation expertise, and Fiori UX experience required. Integration with SAP SuccessFactors Employee Central a plus.

Senior Atlassian Consultant to lead projects, migrate from Data Center to Cloud, and provide expertise in implementing and customizing Atlassian products within a global environment.

Audio Programmer (Associate/Mid) will design interactive audio systems, tools, and pipelines for a new IP. Responsibilities include collaborating with sound designers, ensuring performance and scalability, and contributing to a collaborative team. Requires experience with game engine code, C++, and performance-sensitive design.

Senior Audio Designer to join development of new IP. Define interactive audio systems, design game audio content, and collaborate with team. Requires experience with game engines, audio middleware, DAW, and sound design.

Leads the implementation of strategic programs and projects across operations, ensuring alignment with business goals and regulatory compliance. Manages cross-functional teams, develops project plans, and leverages data analytics to track progress and identify risks. Communicates effectively with senior management and stakeholders.

Leads, mentors, and grows a team of cloud engineers. Oversees the development and maintenance of cloud patterns and solutions. Partners with application development teams on cloud migrations and new cloud-native application development. Champions a frictionless cloud onboarding experience for developers.

Senior Salesforce Engineer designs, develops, tests, documents, and deploys solutions on Sales Cloud, Service Cloud, and Marketing Cloud. Assesses new tools, builds prototypes, and recommends improvements. Collaborates with business customers to develop and enhance solutions using various Salesforce tools. Provides technical and functional expertise and participates in technical discussions.

AI Engineer will design, develop, and deploy AI and LLM-powered solutions. Responsibilities include architecting scalable AI architectures, supporting deployment and optimization of ML pipelines, and collaborating with stakeholders. Requires 3-5+ years of experience in developing and deploying enterprise-scale AI systems, proficiency in Python, SQL, cloud platforms, and container orchestration tools, and experience with production ML frameworks and LLM models.

Lead a team of full-stack engineers developing a cloud-native observability platform. Manage a distributed team, own the technical direction of the application, and guide the delivery of complex features.

Senior Fullstack Software Engineer (Python/TS) will develop and maintain software solutions for an advanced advertising platform. Responsibilities include translating business objectives into software requirements, working with microservices architecture, and collaborating with other engineers. Requires 5+ years of experience, a Master's degree in Computer Science or equivalent, proficiency in Python or TypeScript, and experience with AWS cloud provider(s).

Saily is seeking a Staff Android Engineer to lead architectural direction for the Android app. Responsibilities include driving decisions on modularization, dependency management, and platform-level patterns. The role involves identifying and prioritizing technical debt reduction, championing app performance, and elevating testing practices. The Staff Android Engineer will also mentor other engineers, coordinate with cross-functional teams, and evaluate cutting-edge tools and technologies.