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Backend Engineer Poland, Warsaw Jobs (Hybrid work)

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Senior Backend Engineer
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Join a top fintech in Warsaw as a Senior Backend Engineer. Build secure, scalable microservices using Java 21 and Spring Boot in a modern GCP/Kubernetes environment. We seek an expert with 8+ years' experience, a passion for quality, and a team-player mindset. Enjoy unlimited holiday, a growth fu...
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Poland , Warsaw
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Uncapped
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Until further notice
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Staff Backend Engineer
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Join Uncapped in Warsaw as a Staff Backend Engineer. This hybrid role requires 10+ years of Java/Spring expertise to design high-performance microservices. Enjoy unlimited holiday, a growth fund, and a competitive B2B contract. Drive innovation for startups while working in a self-managed, collab...
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Poland , Warsaw
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Uncapped
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Until further notice
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Senior Backend Engineer
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Join Bolt's engineering team in Warsaw as a Senior Backend Engineer. Tackle unique challenges in demand prediction, real-time pricing, and distributed systems. We seek expertise in microservices, cloud platforms, and building high-volume, reliable infrastructure. Enjoy a competitive salary, stock...
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Poland , Warsaw
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Bolt
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Until further notice
Explore the dynamic and critical field of backend engineering, where you can find some of the most sought-after and rewarding tech jobs available. Backend engineers are the architects of the digital world, building the server-side logic, databases, and application programming interfaces (APIs) that power everything from the websites you browse to the mobile apps you use daily. While frontend developers create the visual elements users interact with, backend engineers work behind the scenes to ensure data is processed, stored, and delivered securely, reliably, and at lightning speed. These jobs are fundamental to the functionality of any online service, making backend engineers indispensable in virtually every industry. Professionals in these roles are typically responsible for designing, developing, and maintaining the core components of a software system. A typical day might involve writing clean, efficient code for new features, optimizing existing databases for better performance, and building robust APIs that allow different software components to communicate seamlessly. Common responsibilities include developing and managing servers and serverless architectures, integrating with third-party services and data sources, and ensuring the security of data against cyber threats. Furthermore, backend engineers are tasked with implementing data storage solutions, which can range from traditional SQL databases to modern NoSQL systems, depending on the project's needs. A significant part of these jobs also involves creating and maintaining continuous integration and continuous deployment (CI/CD) pipelines to automate testing and deployment, as well as designing comprehensive monitoring and alerting systems to guarantee high availability and quickly resolve any production issues. To succeed in backend engineer jobs, a strong foundation in computer science principles is essential. Candidates typically need proficiency in one or more server-side programming languages such as Java, Python, C++, Go, or Scala. A deep understanding of database technologies, both SQL (e.g., PostgreSQL, MySQL) and NoSQL (e.g., MongoDB, Redis), is a standard requirement. Knowledge of web frameworks, containerization tools like Docker and Kubernetes, and cloud service providers (AWS, Google Cloud, Azure) is also highly valued. Beyond technical prowess, these roles demand strong problem-solving skills to debug complex issues and architect scalable systems. Effective collaboration is key, as backend engineers frequently work alongside frontend developers, product managers, and data scientists. They must be proactive, adaptable to evolving technologies, and committed to writing well-documented, tested code. Whether you are an entry-level developer or a seasoned tech lead, backend engineer jobs offer a challenging and impactful career path at the heart of technological innovation.

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