1836 backend developer English-speaking jobs in Warsaw

OverviewWe are seeking a talented ODI Developer with IDMC knowledge to design, build, and optimize enterprise

C++ Developer needed for maintaining and enhancing a client payment system. Requires 5+ years of experience in applications design and development, C/C++ and OO design, and strong communication skills. Must have a Bachelor's Degree in a related technical discipline. Experience with electronic payment systems is desirable.

ServiceNow Developer will build solutions focused on B2B Customer Service Management (CSM) and IT Service Management (ITSM). Responsibilities include configuring and extending CSM & ITSM modules, managing CMDB/CSDM, implementing integrations, and supporting the development pipeline. Requires 3-6+ years of hands-on ServiceNow development experience (JavaScript/Glide, Business Rules, Client Scripts, UI Policies/Actions, Scripted REST) and proven delivery in ITSM and/or CSM. Strong CMDB/CSDM understanding (CSDM 5.0, IRE, class model, relationship design, import sets) and IntegrationHub & MID Server experience are essential.

We are looking for a Full Stack Developer to join us at this pivotal moment, share our vision, and help ... A full-stack developer helps build and maintain both the front-end and the back-end side of the project

Develop medium to large-scale Perl applications using modern MVC frameworks like Mojolicious, Dancer, or Catalyst. Apply design patterns and quality development principles to write testable and efficient code. Work with relational databases, ORM, and CI/CD tools.

Andersen is hiring an Android Developer to enhance retail digital banking solutions, expand mobile features

Lead Software Engineer will leverage Angular frontend development and Azure cloud expertise to deliver secure, scalable, and high-performing solutions. This role requires a mix of hands-on engineering and architectural thinking.

About the Role As a C# Developer at Veeam, you will have the opportunity to join one of several high‑impact

Unity Developer needed to design, build, and maintain games across mobile, PC, and console platforms. Implement features, optimize performance, and collaborate with artists and designers. Requires 5+ years of experience in hyper-casual and/or multiplayer game development, strong Unity3D skills, and experience with C# scripting.

Job DescriptionWe are seeking a Senior Appian Developer with at least 3 years of experience developing

Job Description We're hiring a C++ Developer for our client, an international company that creates

PowerBI Developer will create reports for IT departments, manage workspaces, and configure data refresh. Responsibilities include connecting to various data sources, writing SQL queries, and using Power Query/M for data transformation. The ideal candidate has advanced proficiency in DAX, data modeling, and visualization best practices.

Java Developer will develop, implement, and test software using advanced technologies. Experience with Java 8+, Spring/Hibernate/JPA, and Jira/Confluence/Git/Maven/Jenkins/Gradle is required.

We are seeking a skilled Scala Developer to join the team of our client from the banking industry.

We are looking for an experienced ABAP Developer to join our team for an international S/4HANA implementation

Develop new C++ functionalities for IoT, automotive, and medical projects. Analyze bugs, ensure system integrity, and participate in software verification. Minimum 3 years of C++ experience (embedded systems) and Agile methodology knowledge required.

product architecture in its current and future shape Your skills At least 3 years of experience as a .NET Developer

Java Developer will participate in building game features, establishing development pipelines, and designing and implementing game functionality. Responsibilities include identifying and fixing code errors, testing game functionality, and collaborating with engineers and architects. Requirements include deep Java knowledge, experience with Spring stack, messaging systems, and NoSQL databases, and proficiency in object-oriented design and software design best practices.

A full-stack developer helps build and maintain both the front-end and the back-end side of the project

As a TIA Developer , you will be responsible for the development and maintenance of a core insurance