19188 English-speaking jobs in Warsaw

Big Data Engineer to design, implement, and optimize Big Data solutions. Experience with Apache Spark (Scala or Python), Hadoop, Hive, and CI/CD pipelines required. Solid knowledge of software engineering best practices and cloud technologies is a plus. Fluent English required.

Lead Java Developer for Calypso-based solutions in consulting projects. Manage full implementation cycles, coordinate with clients, and provide technical support. Requires experience with Calypso, Java, APIs, integrations, SQL, and agile methodologies.

Senior Vue.js Developer will join a fintech company's product team (CFT, CV3, or CDP) to develop and maintain web applications. Responsibilities include contributing to an internal component library, developing a post-trade execution system, and creating shared elements for interconnected projects.

Lead Frontend Engineer will drive innovation and evolution of React-based applications, setting technical direction for user interfaces. Responsibilities include championing user experience, acting as a frontend technical leader, and leading AI interface integration. Requires strong hands-on experience with React, JavaScript, TypeScript, and modern frontend tooling.

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.

Fullstack Developer will build backend services with Node.js (Nest JS/Express) and frontend apps with React/Next.js + TypeScript. Experience with production applications, databases (SQL/NoSQL), and APIs is required.

Senior FullStack Engineer will develop fast, high-traffic websites for a European online car market with over 30 million monthly users. Responsibilities include exploring new technologies, applying AI tools to the software development lifecycle, and ensuring production readiness through testing. Requires proficiency in C#, Node.js, AWS, React, and Vue.js.

Lead FullStack Engineer to develop and maintain high-traffic websites for a European online car market. Requires 5+ years of experience with C#, Typescript, SQL & NoSQL, React/Vue.js, and cloud technologies like AWS. Strong understanding of AI tooling and software architecture is essential. Must be proficient in testing, CI/CD, and have experience with content management systems.

Full-Stack AI Engineer will design, build, and maintain intelligent systems using a variety of machine learning techniques. Responsibilities include architecting end-to-end systems, building data pipelines, and conducting research to solve complex problems. Requires strong ML fundamentals, deep learning expertise, and proficiency in Python and ML frameworks.

SimCorp Dimension Platform Specialist to own and support the platform, improve Asset Management processes, and act as a go-to expert. Requires 2+ years of hands-on experience with SimCorp Dimension, understanding of Asset Management, and experience working with stakeholders.

Develop and maintain high-performance backend systems using Java 17+, Spring Boot, and PostgreSQL. Collaborate with product managers, architects, and developers to ensure scalable, secure, and future-ready solutions. Contribute to application deployment using Docker, Kubernetes, and Helm. Communicate effectively in English within distributed teams and participate in scrum events.

Senior Data / Solution Architect will design and implement enterprise data architectures across cloud platforms. Responsibilities include designing data pipelines, enabling AI/ML use cases, and partnering with stakeholders to align on architectural decisions. Requires 8+ years of experience in data architecture, solution architecture, or data engineering with strong consulting experience.

As a Quality Engineering Manager, you will define and drive the quality strategy for airline platforms, ensuring reliability, resilience, and compliance. You will design test architecture and automation frameworks, set quality gates, and lead test strategies for complex airline integrations. You will also mentor team members and promote a continuous improvement culture.

The Associate Network Analyst will manage and respond to network, hardware, and client events, ensuring connectivity for Visa clients and internal business. Responsibilities include detecting, mitigating, and escalating network issues, utilizing tools like Cisco and Juniper Networks devices and ServiceNow.

Senior Software Engineer will design, build, and maintain scalable backend API services using Java-based technologies. Responsibilities include translating requirements into system designs, developing RESTful APIs and microservices, and utilizing GenAI and AI-assisted development tools. Experience with Spring, Spring Boot, RESTful API, Microservices, CI/CD, Git, Docker, Kubernetes, and cloud platforms is required.

Software Engineer will design, build, and test software products using languages like Java, Golang, C++, and C#. Collaborate with teams to develop solutions for e-commerce products and payment technologies. Analyze bugs and apply debugging tools.

Cybersecurity Design Reviewer / Architect needed for a dynamic technology team in the banking sector. Requires 4-10 years of experience in application and cloud security, strong AWS security services knowledge, and hands-on experience with OWASP Top 10, secure coding, and threat modeling.

Manage user acquisition strategies across multiple channels for top mobile app developers and publishers. Analyze ad accounts, set up campaigns, and optimize performance to meet KPIs. Develop reports, work with creatives, and provide customer education materials.

Design, develop, and maintain advanced C++ features with a focus on performance, multithreading, and memory management. Collaborate with team members, contribute to product development, and learn new technologies.

Cybersecurity Engineer will oversee business-critical applications, review application changes, and advocate for security standards. Requires 4+ years of application security experience, knowledge of AWS security services, and understanding of secure coding practices.