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Developer Poland, Warszawa Jobs (On-site work)

7 Job Offers

Full Stack Developer
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Join Circle K as a Retail/POS Developer in Warsaw to build and maintain point-of-sale systems across Europe. You need 3+ years in Java (Spring), SAP UI5, and POS knowledge. Enjoy contract of employment, annual bonus, private medical care, and English lessons. Develop custom extensions and integra...
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Location
Poland , Warszawa
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Salary
Not provided
https://www.circlek.com Logo
Circle K
Expiration Date
Until further notice
Senior Java Developer
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Senior Java Developer sought for Circle K’s Warsaw hub to build scalable microservices within a global loyalty ecosystem. You’ll design REST APIs, leverage Java 17+ and Spring, and work with Azure, Docker, and Kubernetes. Join 300+ IT professionals impacting millions of customers across Europe an...
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Location
Poland , Warszawa
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Salary
Not provided
https://www.circlek.com Logo
Circle K
Expiration Date
Until further notice
Intern Java Backend Developer
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Join our team in Warsaw as a Java Backend Developer Intern. Gain hands-on experience developing RESTful APIs with Java and Spring Boot for the eMobility sector. You'll work on real EV charging projects using SQL databases and Agile/SCRUM methodologies. This internship offers expert mentorship and...
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Location
Poland , Warszawa
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Salary
Not provided
https://www.circlek.com Logo
Circle K
Expiration Date
Until further notice
Intern Front End Developer
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Join our team in Warsaw as a Front End Developer Intern. Gain hands-on experience developing retail and fuel platforms using JavaScript, HTML, CSS, and frameworks like React or Angular. You'll work on microservices, cloud integration, and receive mentorship with potential for a full-time role.
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Location
Poland , Warszawa
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Not provided
https://www.circlek.com Logo
Circle K
Expiration Date
Until further notice
Iam Senior Developer
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Join our team in Warsaw as a Senior IAM Developer. You will design and implement strategic Identity Governance and Access Management solutions using technologies like SailPoint, Ping, and Okta. Your role involves developing custom integrations, scripting in Python/Java, and managing the full iden...
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Location
Poland , Warszawa
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Salary
Not provided
https://www.circlek.com Logo
Circle K
Expiration Date
Until further notice
Junior Software Developer
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Join Circle K as a Junior Software Developer in Warsaw. Develop Java microservices for global customer solutions using Spring Boot and AWS. Grow within an agile, international team with extensive benefits like bonuses, medical care, and skill development.
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Location
Poland , Warszawa
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Salary
Not provided
https://www.circlek.com Logo
Circle K
Expiration Date
Until further notice
Junior Developer
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Join Circle K's Business Centre in Warsaw as a Junior Angular Developer. Develop and maintain web applications using Angular and TypeScript within a SAFe Agile team. We seek candidates with 1+ year of commercial Angular experience and strong problem-solving skills. Enjoy benefits like an annual b...
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Location
Poland , Warszawa
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Salary
Not provided
https://www.circlek.com Logo
Circle K
Expiration Date
Until further notice

About the Developer role

Discover the dynamic world of developer jobs, a cornerstone of the modern digital economy. Developers are the creative and technical masterminds behind the software, applications, and systems that power our daily lives. From the websites we browse to the mobile apps we use and the complex enterprise software running global businesses, developers are the architects of our digital future. This profession involves designing, coding, testing, and maintaining the software that drives innovation across every industry.

A developer's primary responsibility is the entire software development lifecycle. This begins with analyzing user needs and then designing robust software solutions to meet those requirements. The core of the role involves writing clean, efficient, and well-documented code in various programming languages. Developers build and maintain the backbone of applications, which includes creating and managing Application Programming Interfaces (APIs), backend services, and database structures. They are responsible for implementing key architectural patterns like microservices to ensure systems are scalable, reliable, and performant. A significant part of their work involves integrating different systems, such as connecting applications to databases, message queues, and third-party services.

Beyond initial creation, developers are tasked with continuous improvement and maintenance. This includes identifying and fixing bugs, optimizing applications for speed and stability, and implementing security best practices to protect against vulnerabilities. They conduct rigorous testing, including unit and integration tests, to ensure software quality. Furthermore, developers collaborate closely with other teams, such as frontend engineers, quality assurance (QA) specialists, and DevOps teams, to enable seamless continuous integration and deployment (CI/CD) pipelines. In many modern environments, developers also work on containerizing applications using tools like Docker and orchestrating them with platforms like Kubernetes. For senior and leadership roles, responsibilities expand to include mentoring junior team members, managing project timelines, making strategic technology decisions, and overseeing a team's output and professional development.

Typical skills and requirements for developer jobs are diverse. A strong foundation in computer science principles is essential. Proficiency in one or more programming languages (such as Go, Java, Python, JavaScript, or C#) is a fundamental requirement. Developers must understand software architecture, including concepts like RESTful APIs, microservices, and event-driven systems. Experience with databases (SQL and NoSQL), version control systems like Git, and operating systems is standard. As the field evolves, knowledge of cloud platforms (AWS, Azure, GCP), containerization, and infrastructure-as-code is increasingly valuable. Crucially, soft skills are just as important; problem-solving abilities, analytical thinking, clear communication, and the capacity to work collaboratively in a team are highly sought after. Most positions require a bachelor's degree in computer science or a related field, or equivalent practical experience. Whether you are an entry-level programmer or an experienced applications development manager, developer jobs offer a challenging and rewarding career path for those passionate about building the technology of tomorrow.