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Senior Developer Poland, Warsaw Jobs

36 Job Offers

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Senior SAP ABAP/Fiori Developer
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Senior SAP ABAP/Fiori Developer needed for a long-term, fully remote role with a global pharmaceutical client. You will design Fiori apps and ABAP enhancements within a complex, multi-vendor SAP landscape using an Agile Release Train structure. Ideal candidates have strong hands-on ABAP and Fiori...
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Poland , Warsaw
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150.00 - 193.00 PLN / Hour
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Astek
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Senior Java Cloud Developer
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Senior Java Cloud Developer sought to join Citi’s XiNG platform team in Warsaw, Poland. You will design and maintain a high-performance distributed calculation engine handling 500 million daily risk calculations. Requires 10+ years of Java, Spring Boot, Kubernetes, and cloud expertise. Benefits i...
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Poland , Warsaw
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268390.00 - 457010.00 PLN / Year
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Citi
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Senior Fullstack Developer (Angular & Java) – AI-enabled Environment
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Senior Fullstack Developer (Angular & Java) sought for an AI-enabled environment in Warsaw. Join an international team building business-critical applications using microservices and modern SDLC. You will develop frontends with Angular/TypeScript and backends with Java/Spring, leveraging AI tools...
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Poland , Warsaw
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Not provided
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Talan
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Senior Vue.js 2 Developer (SSR + EJS, Options API)
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Senior Vue.js 2 Developer needed for a creator-focused platform. You'll leverage Options API, SSR, and EJS templating to build scalable, high-performance web applications. Based in Warsaw with remote options, this role offers private healthcare, 21 paid days off, and strong learning opportunities...
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Poland , Warsaw
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Not provided
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Fireart Studio
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Until further notice
Senior Java Developer
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Poland , Warsaw
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Not provided
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Sportradar
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Senior Java Developer With Kotlin
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Poland , Warsaw
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268390.00 - 457010.00 PLN / Year
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Citi
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Senior Java Developer
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Senior Java Developer sought by Sportradar, a NASDAQ-listed sports-tech leader, to join the Live Data Services team in Warsaw. You will design, build, and deploy cloud-native microservices using Java, Spring, and TDD. Ideal candidates have 3+ years of backend experience, an Agile mindset, and fam...
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Poland , Warsaw
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Not provided
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Sportradar
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Python Counterparty Credit Risk Senior Developer - VP
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Senior Python Developer (VP) sought for Citi’s Counterparty Credit Risk team in Warsaw. You will develop and maintain the ACE application, integrating quant models with Front Office systems. Requires deep Python, mathematical finance, and stochastic calculus skills. Benefit from a 6% pension cont...
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Poland , Warsaw
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268390.00 - 457010.00 PLN / Year
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Citi
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Senior Full-Stack developer - Java/JavaScript
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Join our team in Warsaw as a Senior Full-Stack Developer. You will build and enhance the Prime Risk Analytics Platform using Java, Spring Boot, Angular, and TypeScript. This role requires expertise in financial risk concepts, SQL Server, and CI/CD pipelines. We offer a competitive benefits packag...
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Poland , Warsaw
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Not provided
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Citi
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Senior Full Stack Developer
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Join our Warsaw team as a Senior Full Stack Developer. You will build scalable software using JavaScript/TypeScript, PHP (Laravel/Symfony), and modern frameworks like Next.js. We offer a competitive salary, private medical care, 21 days vacation, and a collaborative environment for growth.
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Poland , Warsaw
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Not provided
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Fireart Studio
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Senior Full-Stack Developer (Java) - Enterprise Applications
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Join Citi's global IDEAS team in Warsaw as a Senior Full-Stack Java Developer. Design and enhance scalable enterprise applications and microservices using Java EE, REST APIs, and modern UI technologies. Leverage your 5+ years of experience in a collaborative, global environment with a comprehensi...
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Poland , Warsaw
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241750.00 - 411650.00 zł / Year
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Citi
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Senior Product Developer
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Join Mastercard in Warsaw as a Senior Product Developer. You will own the end-to-end development of our global API platform, leveraging AI/ML to create scalable features. We seek a technical product expert with strong backlog management and agile experience. This role offers collaboration with in...
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Poland , Warsaw
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Not provided
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Mastercard
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Senior CMS Drupal Developer
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Join our international team as a Senior Drupal Developer in Warsaw. Lead the technical transition to a new Drupal 11 multisite platform, leveraging your deep expertise in Drupal, WordPress, and modern front-end frameworks like React. Enjoy benefits including private medical care and a multisport ...
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Poland , Warsaw
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150.00 - 160.00 PLN / Hour
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Cyclad Sp. z o.o.
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Senior Dynamics 365 CRM Developer
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Join our team as a Senior Dynamics 365 CRM Developer in Warsaw. Lead the design and customization of our enterprise Sales module, integrating with a large-scale internal system. Utilize your expertise in .NET/C#, Dataverse, and Azure DevOps to deliver robust solutions. This role offers a key tech...
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Poland , Warsaw
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Not provided
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RED Commerce - The Global SAP Solutions Provider
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Senior Gen AI Developer
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Poland , Warsaw
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Not provided
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Citi
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Senior JavaScript React Developer
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Join a top international team as a Senior JavaScript React Developer in Warsaw. Build high-performance, multi-country digital platforms using React.js and Next.js. Drive best practices in a modern tech stack within an Agile environment. Enjoy benefits like private medical care and a multisport card.
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Poland , Warsaw
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125.00 PLN / Hour
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Cyclad Sp. z o.o.
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Senior Frontend Developer
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Poland , Warsaw
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Not provided
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Fireart Studio
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Senior Backend Developer
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Poland , Warsaw
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Not provided
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Fireart Studio
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Senior JavaScript React Developer
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Join a top international team as a Senior JavaScript React Developer in Warsaw. Build high-performance, multi-country digital platforms using React.js and Next.js. Drive best practices in a modern tech stack within an Agile environment. Enjoy benefits like private medical care and a Multisport card.
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Poland , Warsaw
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Salary
125.00 PLN / Hour
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Cyclad Sp. z o.o.
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Until further notice
Senior Platform Developer
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Poland , Warsaw
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Not provided
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Exact Sciences
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Until further notice
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About the Senior Developer role

Senior Developer Jobs represent the pinnacle of technical expertise and leadership within software engineering teams. Professionals in these roles are seasoned experts who not only write high-quality code but also architect complex systems, guide technical strategy, and mentor less experienced engineers. They are the crucial bridge between high-level business objectives and practical, robust technical implementation, ensuring that software solutions are scalable, secure, and aligned with long-term organizational goals.

Typically, a Senior Developer is responsible for the entire software development lifecycle of significant components or applications. This includes leading the design and architecture of new systems, often leveraging modern paradigms like microservices and event-driven architecture. They write, review, and debug complex code, setting standards for quality and maintainability. A key part of their role involves making pivotal technology stack decisions, selecting frameworks, databases, and tools that best fit project requirements. They collaborate closely with cross-functional teams, including product managers, business analysts, and other stakeholders, to translate business needs into technical specifications. Furthermore, Senior Developers are expected to drive best practices in coding, testing, and deployment, frequently overseeing CI/CD pipelines and advocating for DevOps and security principles (DevSecOps).

The common skill set for these jobs is both deep and broad. Mastery of one or more core programming languages (such as Java, Python, C#, or JavaScript) and their associated ecosystems is fundamental. Expertise in relevant frameworks (e.g., Spring Boot, .NET Core, React, Angular) is essential. Senior Developers possess a strong grasp of system design principles, database management (both SQL and NoSQL), and API design (REST, GraphQL). Experience with cloud platforms (AWS, Azure, GCP), containerization (Docker), and orchestration (Kubernetes) is increasingly standard. Beyond technical prowess, soft skills are critical: leadership, clear communication, effective mentorship, problem-solving, and the ability to manage time and priorities across multiple projects are what distinguish a senior professional.

Typical requirements for Senior Developer jobs often include a bachelor’s degree in computer science or a related field (or equivalent practical experience) and a substantial track record, usually between 5 to 10+ years of progressive software development experience. Demonstrated experience in leading development initiatives, making architectural decisions, and working within Agile/Scrum methodologies is commonly sought. The role demands a proactive, strategic thinker who stays abreast of emerging technologies and can drive innovation while ensuring system reliability and performance. For those seeking to advance their impact beyond pure coding into areas of design, strategy, and team leadership, exploring Senior Developer jobs is the definitive next step in a thriving tech career.