Backend Jobs in Poland

Senior Software Developer - Backend

EuropeFull-timeSenior

Agile C# Cybersecurity .NET Microservices +2 skills

Senior backend developer (with some full-stack work) building DHI's MUSE software — an offshore wind bird- and bat-monitoring and decision-support system for wind farms worldwide. Based in Gdynia, Poland or Hørsholm, Denmark, the core stack is C# on .NET Core, with exposure to sensor networks, streaming, and microservices.

Wipro Technologies

HybridEuropeContractSenior

Java Backend Expert – Mid/Senior (Hybrid Warsaw)

Agile API DevOps J2EE Java +3 skills

Contract mid/senior Java backend developer at Wipro in Warsaw: design, develop, test, and maintain Java/J2EE applications using REST APIs, Spring, and microservices, collaborating with DevOps and QA in an Agile environment. Hybrid work with 1-3 days per week at the client office in Warsaw.

4901 Accenture Services Sp.zoo Company

Calypso Java Backend Engineer | Spring & Kafka

ActiveMQ Java Jms Kafka Spring

Accenture is hiring a Java Backend Engineer in Warsaw to design, develop, and maintain backend services supporting financial systems built on Nasdaq Calypso. The stack centers on Java 17+, Spring Framework/Spring Boot 3.x, and messaging platforms like Kafka and ActiveMQ/JMS, with a flexible mix of remote and office work.

Randstad Polska Sp. z o.o.

Senior Backend Developer | Cloud-Native APIs

Agile API CI/CD Docker .NET +3 skills

Designs, builds, and maintains backend services and APIs powering client portal applications using Java or .NET. Deploys in Docker/Kubernetes/OpenShift environments and contributes to CI/CD, testing, and data modeling in an Agile team.

Randstad Polska Sp. z o.o.

Backend Developer

EuropeContractSenior

Agile API CI/CD Cloud Cloud Native +14 skills

Senior backend developer designing, building, and maintaining Java or .NET backend services and RESTful APIs for client-facing portal applications, likely for a financial services client (fund administration/transfer agency). Day to day: containerized deployments (Docker/Kubernetes/OpenShift), SQL/NoSQL data modeling, CI/CD, testing, and Agile collaboration.

SCALO

(12012) .NET Backend Developer

W Scalo zajmujemy się dostarczaniem projektów software'owych i wspieraniem naszych partnerów w rozwijaniu ich biznesu. Tworzymy oprogramowanie, które umożliwia ludziom dokonywanie zmian, działanie w szybszym tempie…

CommIT

AWS CI/CD Cloud Containerization DevOps +12 skills

Senior Backend Developer

RemoteEuropeSenior

Senior Backend Developer at CommIT (Warsaw, remote-friendly) who designs, builds, and maintains scalable Python-based backend systems and microservices, deploying them on AWS (ECS, EKS, Lambda, S3, RDS) and managing them with Kubernetes, while ensuring performance, reliability, and security.

TECTONIC INTERACTIVE

Mid Backend Developer Nodejs AWS

EuropeMiddle

AWS Docker EC2 ECS Express.js +14 skills

Chcesz tworzyć rozwiązania technologiczne, które łączą telewizję i streaming z odbiorcami w czasie rzeczywistym i mieć na to realny wpływ? Głosowania na żywo, interakcje z publicznością, miliony użytkowników, duże…

Astek

Remote Backend Tech Lead - Java Microservices

EuropeLead

Angular API Java Jest Oracle +2 skills

Astek Polska is hiring a Backend Developer / Technical Lead for its CLP team building a corporate credit workflow system that combines a monolith with microservices. Day-to-day work is backend development in Java with REST API and RabbitMQ integrations (plus Oracle and Angular), performed 100% remotely.

SmartRecruiters, Inc.

Senior Backend Engineer - Java, Cloud & AWS (Multi-Tenant)

Altium AWS Cloud Cloud Native Java

Altium is hiring a Senior Backend Engineer in Katowice, Poland, to build cloud-native Java backend services and scalable multi-tenant infrastructure for the Altium 365 platform that powers collaboration for electronics designers. Day-to-day work centers on Java, AWS, and distributed, high-load systems.

Scalosoft

Senior Java Backend Engineer – Kafka & Spring Boot, Hybrid

API Dynatrace ELK Hibernate Java +8 skills

Senior Java backend engineer at Scalosoft in Warsaw building backend services and REST APIs for banking projects, working hybrid with office presence once every 3 months. Core stack: Java 21+, Spring Boot 3, Hibernate, PostgreSQL, Kafka, RabbitMQ, Redis, ELK and Dynatrace.

Diverse Consulting Group

Senior Java Backend Engineer - Spring Boot & REST APIs

Agile API CI/CD Data Modeling Docker +5 skills

Senior Backend Developer designing, building, and maintaining Java-based backend services for client projects, centered on RESTful APIs, data modeling, and scalable architectures with Spring Boot in containerized (Docker, Kubernetes/OpenShift) environments.

Motorola Solutions

Java Backend & Web Engineer — Hybrid, Growth Opportunities

AI CI/CD Hibernate Java Tomcat

Builds a Network Management Provisioning Manager at Motorola Solutions, working on Java backend services and web frontend features on Tomcat and Hibernate in a hybrid Kraków team. Day to day involves collaborating with engineers, code reviews, CI/CD pipelines, on-premise deployment, and AI-assisted coding.

Syncron AB

Remote Associate Software Engineer — Java/Spring Backend

Agile Cloud Java Kotlin SaaS +1 skills

Associate software engineer at Syncron's Warsaw engineering team working on a cloud-based SaaS backend — implementing new features in Java and Kotlin and contributing to architecture changes in a globally distributed, Agile environment.

Diverse Consulting Group

Senior Backend Developer (Java) Java, Spring Boot, Docker

Agile API CI/CD Cloud Cloud Native +14 skills

Recruitment firm Diverse Consulting Group is hiring a Senior Backend Developer (Java) to build backend services and REST APIs with Java, Spring Boot, and SQL/NoSQL databases, deployed via Docker/Kubernetes/OpenShift. Day to day involves testing, CI/CD, performance tuning, and Agile collaboration, with financial-services experience preferred.

Luxoft Germany

Senior Java Backend Engineer: Scalable APIs & Spring

API Hibernate Java Kanban Scrum +2 skills

Luxoft Germany is hiring a senior Java backend engineer in Kraków to work on a client project in the investment banking sector. Day to day involves building back-end services, APIs, and data access layers with Java, Spring Boot, Hibernate, and SQL, with an emphasis on performance, clean code, and Scrum/Kanban delivery.

SmartTel Plus OÜ

Senior Java Backend Engineer — Cloud Microservices

Agile CI/CD Cloud Cloud Native Docker +6 skills

Senior Java backend engineer designing, building and owning cloud-native microservices end to end with Java 21+, Spring Boot, Docker and Kubernetes for a telecoms/cloud communications product, including CI/CD, observability, OWASP security and incident response in an Agile, hybrid Warsaw setup.

backend developer for banking workflows

RemoteEuropeLead

Agile AI API CI/CD Cloud +15 skills

A technical-lead backend role building credit-workflow software for a bank's corporate clients in Java, using REST APIs, RabbitMQ, and microservices. Day to day: designing distributed systems, enforcing code quality, reviewing code, mentoring developers, and maintaining CI/CD pipelines.

Diverse Consulting Group

Senior Backend Developer (.NET) .NET, Spring Boot, Docker

Agile API CI/CD Cloud Data Modeling +10 skills

Senior Backend Developer building and maintaining .NET backend services and RESTful APIs for client-facing applications. Day to day: designing data models with SQL/NoSQL, deploying in containers (Docker, Kubernetes/OpenShift), wiring up CI/CD, writing tests, and troubleshooting production issues in Agile teams. Requires 8+ years of backend experience.

AniWebDesigns

Backend Developer

Automation AWS CI/CD Design Patterns Infrastructure as Code +1 skills

Backend Developer at AniWebDesigns in Warsaw, Poland, focused on refactoring code to a service-oriented architecture, solving complex technical problems, mentoring teammates, and joining an on-call rotation. The stack mentions AWS, CI/CD, and Puppet/infrastructure-as-code; salary is $80k–$100k with Sunday–Thursday hours. (Note: the posting oddly mixes in Product Designer requirements.)

80K – 100K $