44 backend developer English-speaking jobs in Rzeszów

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

Software Developer will design, implement, and maintain BSPs for microcontrollers and ECUs. Responsibilities include implementing Functional Safety mechanisms, setting up real-time operating systems, and analyzing project requirements.

Blockchain Developer sought for a growing team building next-generation decentralized solutions. Requires 1+ year of blockchain software experience, proficiency in a programming language (JavaScript, Node.js, Python, Java), and Solidity knowledge or willingness to learn. Must be a strong problem solver with advanced English skills (B2+).

Overview We are looking for a developer with excellent knowledge of Java craftsmanship, who can share

, with a strong focus on modern AI-driven approaches to code generation, software integrations, and developer ... , with a strong focus on modern AI-driven approaches to code generation, software integrations, and developer ... hands-on to sprint goals through feature implementation and maintenance, , evaluating emerging AI and developer-tooling

Qualifications5+ years of Experience in backend development with proficiency in Java and familiarity ... Responsibilities: Make significant contributions in designing, developing, and optimizing scalable shared backend

Qualifications 5+ years of Experience in backend development with proficiency in Java and familiarity ... Responsibilities Make significant contributions in designing, developing, and optimizing scalable shared backend

Currently, we are looking for an experienced SAP Developer with good knowledge of EDI, to support in

driving both growth and smarter marketing through the best application of technology. ,[As a Synerise Developer ... enterprise MarTech tools, gradually expanding your profile toward a Marketing Automation and Personalization Developer

Mid-level mainframe developer with 2-3 years of experience in COBOL or Assembler (willingness to learn). Must have good knowledge of IBM z/OS and mainframe concepts, DB2, and debugging/performance monitoring.

Junior Developer/Trainee will assist in developing, testing, and maintaining Assembler and COBOL code in mainframe environments. Support enhancements and maintenance of legacy applications. Collaborate with developers and cross-functional teams on system integration tasks.

develop, and maintenance of large engineering applications, Implement high-performance and reliable backend

Guidewire Developer Techlead will lead development activities within a large-scale insurance project using Guidewire PolicyCenter, ClaimCenter, and BillingCenter. Responsibilities include driving configuration, development, and integration tasks across multiple Guidewire modules and overseeing end-to-end delivery quality.

clean, efficient, and scalable code using Kotlin and/or Java,, collaborating with product, UX/UI, and backend

Balancing) Knowing security best practices Shell scripting (Bash/PowerShell) CI/CD pipelines (AWS Developer

Salesforce Platform Developer I certification is a plus, or equivalent experience with Apex, SOQL, Lightning

learning systems into production, 5+ years of experience as a MLOps engineer or data engineer or software developer

Customer portals, Mobile apps) with backend services using REST/SOAP/Webhooks Experience in IDM space

Minimum 3 years of experience as a Back Office Consultant, Developer, or Business Analyst working on

Translate business problems into ML/AI solutions and deliver models to production. Build and operate end-to-end ML systems, owning data pipelines, modeling, deployment, monitoring, and iteration. Combine software engineering fundamentals with practical machine learning expertise and MLOps experience.