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Senior Engineer Poland Jobs

207 Job Offers

Senior Fullstack Engineer, Metadata Experience
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Box seeks a Senior Fullstack Engineer in Warsaw to lead design and implementation of scalable platform components. Requires 5+ years experience, deep JavaScript/TypeScript and React expertise, plus Node.js backend skills.
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Senior Backend Engineer, Metadata Core
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Box seeks a Senior Backend Engineer in Warsaw to lead scalable microservices design using Java, Kubernetes, and Kafka. Mentor engineers and shape platform vision with cutting-edge cloud technologies.
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Senior Fullstack Engineer, Automate
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Box seeks a Senior Fullstack Engineer in Warsaw to lead React/TypeScript frontend architecture for Box Automate. Requires 5+ years fullstack experience, distributed systems knowledge, and cloud platform expertise.
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Senior Software Engineer, Box Objects
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Box seeks a Senior Software Engineer in Warsaw to build high-scale, secure content management services. Requires 5+ years of Java experience and strong English skills. Join a global leader in Intelligent Content Management.
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Automation QA Engineer | Senior | Apps Team
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Join Nord Security's B2B team as a Senior Automation QA Engineer in Warsaw. Build test automation from scratch using Appium, JS/TS, and AI tools. Enjoy premium healthcare, extra time off, and growth opportunities.
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Senior Fullstack Engineer (m/f/d) - AI Health tech
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Join voize as a Senior Fullstack Engineer in Warsaw and build AI companions for frontline workers. Requires 5+ years with React, TypeScript, and Kotlin backend, plus regulated data experience.
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Senior Backend Engineer, Poland (m/f/d)
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Join voize as a Senior Backend Engineer in Warsaw and build AI that gives nurses back 30% of their time. Requires strong Kotlin, Coroutines, and REST or GraphQL API skills.
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Senior Software Engineer (Java)
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Join ARQ in Krakow as a Senior Software Engineer (Java) to build scalable backend systems for a fast-growing fintech. Work with Java 25, Spring Boot, and Postgres on greenfield projects. Enjoy stock options and a world-class team.
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Senior Full-Stack Software Engineer (Python, React)
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Senior Full-Stack Engineer role (Python, React) at an AI-first global tech company. Build scalable web apps, lead architecture, and work with LLM APIs. Remote/hybrid flexibility, international projects, and strong benefits.
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Senior Full-Stack Software Engineer (.NET, Angular)
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Senior Full-Stack Engineer (.NET, Angular) for a global AI-first tech company. Requires 5+ years with .NET/C#, MS SQL, REST APIs, Azure, and Angular 18+. Remote/hybrid flexibility, international projects, and strong benefits.
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Poland, Bulgaria
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Senior Full-Stack Software Engineer (Python, React)
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Senior Full-Stack Engineer role blending Python/Node.js, React and AWS to build scalable AI-powered platforms for Fortune 500 clients. Requires LLM API experience, strong architecture skills and production ownership.
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Senior Full-Stack Software Engineer (.NET, Angular)
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Senior Full-Stack Engineer (.NET, Angular) for a global AI-first tech company. Requires 5+ years with .NET/C#, MS SQL, REST APIs, Azure, and Angular 18+. Modernize core systems with hybrid/remote flexibility and top-tier benefits.
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Poland, Bulgaria
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Senior Full-Stack Software Engineer (Python, React)
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Senior Full-Stack Engineer role (Python, React) at an AI-first global tech company. Build scalable web apps, lead architecture, and work with LLM APIs. Remote/hybrid flexibility, international projects, and strong benefits.
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Senior Software Engineer, Python (Remote)
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Senior Python engineer wanted to build and scale high-traffic platform services in a remote role. Requires advanced Python, distributed systems, Docker, CI/CD and AI-native development. Based in Warsaw, Poland.
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Senior Software Engineer - Brand Safety & Agentic AI
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Senior Software Engineer role in Warsaw building scalable backend services and agent-ready APIs with Node.js, TypeScript, and AWS. Join CreatorIQ to power Brand Safety and Agentic AI systems with strong benefits and growth.
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Senior Full-Stack Software Engineer (.NET, Angular)
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Senior Full-Stack Engineer (.NET, Angular) for a global AI-first tech company. Modernize core systems with .NET, Azure, and Angular 18+, building scalable microservices and REST APIs. Remote/hybrid flexibility in Bulgaria with top benefits.
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Poland, Bulgaria
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Senior DevOps Engineer- Fintech Engineering (m/f/d)
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Join InPost Pay's fintech platform as a Senior DevOps Engineer in Warsaw. Build cloud infrastructure, Kubernetes environments and CI/CD pipelines with a lean, AI-native team. Requires 5+ years DevOps experience, Terraform and AWS/GCP/Azure skills.
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Senior Backend Engineer - FinTech Engineering (M/F/N)
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Senior Backend Engineer role at InPost Pay building a fintech platform from scratch. Requires 5+ years in Java, C#/.NET, Rust or Node.js, distributed systems expertise and AI-driven development. Hybrid work in Warsaw or Cracow.
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Poland, Warszawa/Kraków
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Senior Frontend Engineer - Fintech Engineering (M/F/N)
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Senior Frontend Engineer role at InPost Pay in Warsaw or Cracow (hybrid). Build fintech platform from scratch using React/Vue/Angular, TypeScript, microfrontends, and AI-driven development. Requires 5+ years experience.
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Poland, Warszawa/Kraków
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Senior .NET Software Engineer
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Senior .NET Software Engineer role in Warsaw with Arηs Group, part of Accenture. Requires 6+ years IT experience, UML design skills, Scrum background and enterprise software expertise. Lead development teams on complex public sector IT projects.
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About the Senior Engineer role

Senior Engineer jobs represent the pinnacle of technical expertise and leadership within the engineering field. These roles are designed for seasoned professionals who possess deep, specialized knowledge and are entrusted with guiding complex projects, making high-stakes architectural decisions, and mentoring the next generation of talent. Unlike entry or mid-level positions, senior engineers are expected to operate with significant autonomy, translating broad business objectives into robust, scalable, and innovative technical solutions. They serve as the critical bridge between strategic vision and practical execution, ensuring that engineering outcomes align with long-term organizational goals.

Professionals in these roles typically shoulder a comprehensive set of responsibilities that extend beyond pure coding. A core duty is systems architecture and design, where they define the technical blueprint for major initiatives, selecting appropriate technologies and frameworks to ensure performance, security, and maintainability. They are deeply involved in solving the most challenging and ambiguous problems, applying advanced analytical skills to diagnose issues and devise elegant solutions. Leadership is a fundamental aspect, encompassing code and design reviews, technical mentorship for junior team members, and fostering a culture of engineering excellence and continuous improvement. Furthermore, senior engineers often own the entire lifecycle of critical system components, from conception and development through deployment, monitoring, and iterative enhancement.

The typical skill set for senior engineer jobs is both broad and deep. Mastery in one or more programming languages and relevant technology stacks is a given. However, what truly distinguishes a senior engineer is their proficiency in architectural patterns, such as microservices or event-driven design, and a strong grasp of cross-cutting concerns like security, scalability, and observability. They are expected to have extensive experience with modern development practices, including DevOps principles, CI/CD pipelines, infrastructure as code, and automated testing strategies. Equally important are the soft skills: exceptional communication to articulate complex ideas to technical and non-technical stakeholders, strategic thinking to anticipate future challenges, and a collaborative mindset to work effectively across multidisciplinary teams. A proven track record of driving projects to successful completion and a mindset geared towards innovation and efficiency are common requirements.

Ultimately, senior engineer jobs are for those who are not just builders but visionaries and stewards of technology. They play a crucial role in shaping the technical direction of products and services, mitigating risk, and ensuring that engineering practices evolve to meet emerging demands. For organizations, hiring for these positions is an investment in stability, innovation, and sustained competitive advantage. For engineers, these roles offer the opportunity to have an outsized impact, lead transformative work, and define the future of technology within their domain.