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Senior Software BE Engineer Poland Jobs

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Go/Java Senior Software Engineer
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Join Citi in Warsaw as a Senior Go/Java Software Engineer. You will build secure developer tools and safeguard the software supply chain using Go, Java, and cloud-native tech (e.g., Docker, Kubernetes, AWS). Collaborate in agile teams to implement modern CI/CD and security-first development. We o...
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Poland , Warsaw
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Citi
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Senior Infrastructure Software Engineer, Cloud Foundation
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Shape the cloud foundation for AI/ML innovation at Dropbox. As a Senior Infrastructure Engineer in Poland, design scalable, secure hybrid cloud platforms using Golang, Python, and Terraform. Drive technical roadmaps and mentor teams in a high-impact role with competitive benefits and flexible PTO.
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Poland
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314500.00 - 425500.00 PLN / Year
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Dropbox
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Senior Software Engineer - GO
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Join our Warsaw team as a Senior Software Engineer - GO. You will build internal tools to automate network operations within our Software Defined Networking (SDN) team. We seek a Go expert with DevOps, CI/CD, and Infrastructure as Code (Terraform) experience. Embrace an automation-first mentality...
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Poland , Warsaw
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Mastercard
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Senior Software Engineer - Java
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Join Mastercard's Open Banking team in Gdansk as a Senior Java Engineer. Develop and maintain secure, high-quality APIs for seamless European bank connectivity. Utilize your deep Java expertise, AWS, and modern CI/CD practices to build innovative, low-touch solutions. Work on critical systems inv...
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Poland , Gdansk
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Mastercard
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Senior Software Engineer - C#
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Join Mastercard's Open Banking team in Gdansk as a Senior C# Software Engineer. Develop and maintain cutting-edge APIs using .NET and ASP.NET to ensure high-quality bank connectivity across Europe. You'll build secure, turn-key solutions for account information and payment initiation services. Ex...
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Poland , Gdansk
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Mastercard
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Senior Software Engineer - C#
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Join our Connectivity division as a Senior Software Engineer in Gdańsk. You will design and maintain APIs integrating our platform with thousands of European banks, tackling scalability and regulatory complexity. We seek a collaborative backend expert with strong .NET/Java skills and experience i...
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Poland , Gdansk
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Mastercard
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Senior Software Engineer
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Join our Connectivity division in Gdansk as a Senior Software Engineer. You will design and maintain robust APIs, integrating our platform with thousands of European banks. We seek experts in .NET/Java, distributed systems, and PSD2 interfaces. Enjoy a collaborative, flat-structure team with high...
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Poland , Gdansk
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Mastercard
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Senior Software Engineer
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Join Sportradar's Odds Product Division in Warsaw as a Senior Software Engineer. Develop high-performance, cloud-first services using Java, TDD, and AWS for real-time sports data. Thrive in a collaborative, agile environment that values clean code, innovation, and work-life balance. Utilize moder...
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Poland , Warsaw
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Sportradar
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Senior Software Engineer
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Join Sportradar's Odds Division in Warsaw as a Senior Software Engineer. Build high-performance, cloud-first services using Java/C++, AWS, and Kubernetes on real-time sports data. We value engineering quality, a test-first mindset, and offer a collaborative, global environment with true work-life...
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Poland , Warsaw
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Sportradar
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Senior Software Engineer - Backend focused
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Join Viator, a Tripadvisor company, as a Senior Backend Software Engineer in Kraków. You'll design, build, and deploy systems for the world's leading travel experiences marketplace, using Java or similar. Enjoy a flexible schedule, travel perks, and a full-cycle engineering role with rapid produc...
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Poland , Krakow
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Tripadvisor
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Senior Software Engineer - Frontend Focused
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Join Viator's distributed Engineering team in Krakow as a Senior Frontend Software Engineer. You'll work primarily with React, TypeScript, and GraphQL, releasing code frequently in a full-cycle role. We offer a competitive package, travel perks, and flexible schedules while you tackle diverse tec...
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Poland , Krakow
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Tripadvisor
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Software Senior Principal Engineer, Data Path Engineering
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Join Dell in Warsaw as a Senior Principal Software Engineer in Data Path Engineering. Design and develop cutting-edge Big Data storage systems using C/C++ and Python. Leverage your 10+ years of experience in complex, high-performance software and distributed systems. Enjoy top benefits like priva...
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Poland , Warsaw
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Dell
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Senior Software Engineer - C/C++ (LLVM compilers)
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Join 3Pillar Poland as a Senior C/C++ Software Engineer specializing in LLVM compilers. Leverage your 5+ years of C/C++ and Linux expertise to architect high-performance, enterprise-level systems. This remote-first role offers a flexible environment, global collaboration, and career growth opport...
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Poland
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3Pillar Global
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Senior Software Engineer
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Join our Aura for Business team in Poland as a Senior Software Engineer. Build a groundbreaking Managed Service Provider product from scratch, focusing on corporate security for personal devices. Leverage your 6-8+ years of experience with Node.js, TypeScript, React, and scalable architecture. Ta...
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Poland
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Aura
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Senior Software Engineer
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Join Island in Warsaw to redefine the enterprise browser. As a Senior Software Engineer, you'll build scalable, secure software using modern cloud tech and SOLID principles. Mentor peers in a hybrid role, solving complex challenges at the intersection of security and UX. Enjoy a flexible model fr...
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Poland , Warsaw
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Island
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Senior Frontend Software Engineer, Design System/Accessibility
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Join our team in Kraków as a Senior Frontend Engineer specializing in Design Systems & Accessibility. You will lead key initiatives, shape our UI infrastructure, and champion inclusive web standards using JavaScript, TypeScript, and modern frameworks. Enjoy a remote-friendly culture, competitive ...
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Poland , Kraków
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SmartRecruiters
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Senior Software Engineer
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Join SmartRecruiters as a Senior Software Engineer in Poland. Enhance our Developer Platform using Java, AWS, and Kubernetes to boost engineering productivity. Enjoy a remote-friendly culture, competitive salary, and growth opportunities in an empowered team.
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Poland
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SmartRecruiters
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Senior Software Engineer, Backend (Java)
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Join our team as a Senior Backend Engineer (Java) and help build a platform connecting millions to their ideal jobs. You'll design distributed systems on AWS/Kubernetes, applying TDD and clean architecture principles. We offer a remote-friendly culture in Poland, competitive salary, and meaningfu...
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Poland
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SmartRecruiters
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Senior Networking Software Engineer
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Join our team in Kraków as a Senior Networking Software Engineer. You will design and develop low-level networking software for a cutting-edge AI SoC, using C and Linux in an embedded environment. This system-level role involves full lifecycle development and close collaboration with hardware and...
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Poland , Kraków
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OnHires
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Senior Software Engineer
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Join our team as a Senior Software Engineer in Warsaw or remotely. Design and optimize high-performance backend systems for real-time bidding (RTB) and machine learning at internet scale. Leverage your expertise in Python, C++, Java, or Scala to build reliable, low-latency solutions handling bill...
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Poland
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RTB House
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Explore a world of opportunity in senior software backend engineering jobs, where experienced professionals architect the core logic and services that power modern applications. A Senior Backend Engineer is a pivotal technical leader responsible for designing, building, and maintaining the server-side components, databases, and APIs that form the foundation of software systems. This role goes beyond writing code; it involves making critical architectural decisions that ensure scalability, reliability, security, and performance as user bases grow and data volumes increase. Professionals in these jobs typically own the end-to-end development of robust backend services. Common responsibilities include designing and implementing efficient data models and database schemas, building well-documented and secure RESTful or GraphQL APIs, and developing the business logic that drives application functionality. They are deeply involved in integrating various third-party services, managing authentication and authorization systems, and ensuring data integrity and protection. A significant part of the role is optimizing system performance, diagnosing complex bottlenecks, and planning for scalability, often using cloud-native patterns like microservices, serverless functions, and event-driven architectures. Furthermore, senior engineers are expected to establish and champion best practices in code quality, testing, and deployment, frequently mentoring junior team members and collaborating closely with frontend engineers, DevOps specialists, and product managers. The typical skill set for these senior roles is extensive. Proficiency in one or more backend programming languages such as Python, Java, Go, C#, or Node.js is fundamental. A strong grasp of database technologies, both SQL (e.g., PostgreSQL, MySQL) and NoSQL (e.g., MongoDB, DynamoDB), is essential. Candidates are expected to have hands-on experience with cloud platforms like AWS, Azure, or Google Cloud, and with infrastructure-as-code tools such as Docker and Kubernetes. Understanding CI/CD pipelines, version control with Git, and comprehensive testing strategies are standard requirements. Beyond technical prowess, successful senior backend engineers possess excellent problem-solving abilities, clear communication skills for articulating complex technical concepts, and a proven track record of taking ownership of projects from conception to deployment and iterative improvement. For those with the requisite experience and a passion for building resilient systems, senior software backend engineer jobs offer a challenging and rewarding career path at the heart of technological innovation.

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