backend java

DEVAPO poszukuje kandydatów na stanowisko Java Software Backend Engineer w kategorii Backend, w Warszawa. To świetna propozycja dla osób z doświadczeniem na poziomie mid i znajomością Java, Spring Boot, JavaScript, React.js, Angular, PostgreSQL, MongoDB, JMS, Kafka, Git, Camunda, Flowable, Activity. Aplikuj do i dołącz do zespołu DEVAPO.

Avenga, a global technology services company, invites you to join an international project in Pharma & Life Sciences focused on biosample data platforms. The Biosample Portal enables researchers to search biosamples from clinical and non-clinical sources and supports data flows, QC, and analytics.As a Senior Java backend developer, you’ll design features,...

ARQ is a rapidly growing fintech redefining how people move money across borders. We seek a Backend Engineer to design and maintain scalable, secure backend systems powering our products in Kraków.You’ll work on greenfield projects and modernize existing platforms, building REST APIs and microservices with Java, Spring Boot, and a Postgres stack, while...

Opis projektu Rozwój nowoczesnej platformy rekrutacyjnej typu Talent Acquisition Suite, wspierającej pełny cykl pozyskiwania pracowników – od przyciągania kandydatów, przez selekcję, aż po zatrudnienie i onboarding. Platforma umożliwia kompleksowe zarządzanie kandydatami, ze szczególnym uwzględnieniem obszarów compliance oraz kluczowych...

Senior / Staff Backend Engineer (Java, Kafka Streams, AWS) Location: Kraków, hybrid Contract: B2B or UoP B2B budget: up to 210 PLN/h + VAT Work model: around 3 days per week from the office We are looking for a Senior or Staff Backend Engineer to join a small, high-impact engineering team building a large-scale, event-driven platform. This is a hands-on...

VGW is building scalable backend systems for player-facing features from Wroclaw. The Software Engineer will own backend services, work with Kotlin on the JVM, and contribute to cloud-based infrastructure and data pipelines that power quests, bonuses and live streaming.Join a cloud-native team focused on CI/CD, IaC and continuous learning, with opportunities...

Cosmose AI is seeking a strong Mid or Senior Java Engineer to scale the backend of our KaiKai Lock Screen and CMS, processing content for millions of users daily. You will design and maintain backend services, build scalable data pipelines, and collaborate with Product, Content, and Data teams to deliver meaningful features.We value ownership, proactive...

ALTEN Polska poszukuje doświadczonego Backend Java Developera z podstawami frontendu (około 5% czasu) do współtworzenia aplikacji działającej w architekturze mikroserwisowej i środowisku cloud-native u naszego klienta z branży bankowej. Minimum 3–4 lata doświadczenia komercyjnego na stanowisku Backend Java Developera.Wymagana dobra znajomość...

Experis Manpower Group in Warsaw is seeking a Java developer to join banking-focused projects. You will develop and maintain Java applications in a banking environment, build integrations and support transaction processing systems.You will create and modify database solutions, develop unit and integration tests, and participate in code reviews and deployment...

GENERAL INFORMATION: Industry: fintech Location: Warsaw (hybrid work model - 2x month in the office) Rate: up to 165 PLN/h Form of cooperation: B2B Project duration: long-term ROLE SUMMARY: The Android Developer role is focused on facilitating customer onboarding while maintaining the fintech app functionality across diverse markets. MAIN RESPONSIBILITIES:...

Mid/Senior Backend Engineer (Java) | Greenfield Gaming Platform B2B cooperation • Remote from Poland • Greenfield project • Initial workshop in Kraków • International team The Mission WestCode is building a new engineering team for a greenfield international gaming platform. You’ll help build backend systems around player accounts, wallets,...

Responsibilities We are looking for a strong backend engineer who wants to design and scale core systems powering product and assortment management across a large retail ecosystem. You will take ownership of backend architecture and system evolution within the assortment management domain, building scalable services and integrations across a complex,...

Sii Poland in Warsaw is seeking a skilled Data Engineer to join our team. You will modernize the backend data processing platform for an investment bank, building scalable pipelines with Scala and Spark in a hybrid work model with 2-3 days in the office each week.You will work on ETL/ELT processes, Java-based components, and performance tuning for Spark...

Allegro.eu S.A. Warsaw-based team in Technology is hiring for a backend engineer focused on massive-scale systems and applied AI.You will design, build, and optimize services handling ~120 million offer events daily, integrating ML models to analyze images and offer context, while maintaining high-quality code and scalable architecture. You’ll work...

Cześć! Poznaj możliwości współpracy ze Scalo!Zakres współpracy obejmuje:realizacja usług w projekcie bankowym związanym zprojektowaniem i tworzeniem oprogramowania w języku Java dla aplikacji webowych udostępnianych w intranecie,proponowanie i wdrażanie nowych rozwiązań technologicznych i optymalizacji istniejących,pielęgnowanie standardów...

ALTEN Polska is seeking a mid-level Backend Developer specializing in Java 21+ and Spring Boot 3+ to contribute to backend applications, system integrations, and performance optimization in a hybrid Warsaw setting.The candidate should have 3-5 years of backend experience, strong knowledge of microservices, and hands-on experience with Kafka, Docker,...

Allegro.eu S.A. in Poznań, Poland is seeking a Software Engineer 1 (Java / Kotlin) to join the Allegro Ads team. You will design, build, and optimize high‑throughput backend services with a cloud‑native stack, owning components from coding to deployment.You'll work on real‑time analytics and ML‑driven advertising features, using Spring, Kafka,...

ComeOn Group in Katowice, Poland is seeking an experienced backend Java developer to design, build, and maintain services within a cross-functional team. You will work with Java, Spring Boot, Kafka, Docker, MongoDB, and MySQL across the full development lifecycle.The role is in an Agile environment with daily collaboration across functions and a focus on...

Etteplan poszukuje doświadczonego Senior Java Developera do zespołu pracującego nad systemem analizy i ograniczania strat wody. Praca w hybrydzie z biurami we Wrocławiu, Katowicach, Poznaniu i Gdańsku, z dużym wpływem na decyzje techniczne i rozwój produktu.Do obowiązków należy tworzenie i utrzymanie backendu w Javie (Spring / Spring Boot),...

ALOIS UK in Kraków seeks an experienced Java Developer to design, develop, and maintain enterprise-grade applications. You will work with Core Java, Spring Boot, and Microservices, build REST APIs, and collaborate with analysts, architects, and other developers to deliver scalable solutions.The role emphasizes clean code, testing, CI/CD, DevOps practices,...