senior java backend engineer java 21 spring boot

ALTEN Polska is seeking a Senior Software Developer with strong expertise in microservices, Kafka-based systems, and cloud-ready solutions. You will design, develop, and maintain scalable services, collaborating with architects and cross-functional teams.The ideal candidate has 6–8 years of experience, advanced English, Java 11+/21, Spring Boot, Kafka, and...

Senior Java Developer Twój zakres zadań: Jednym z naszym produktów jest Kafeteria MyBenefit – platforma internetowa wspierająca działy HR w zarządzaniu świadczeniami pozapłacowymi. W codziennej pracy usprawniamy i ulepszamy nasz produkt, aby jak najlepiej odpowiedzieć na potrzeby rynku Będziesz tworzyć nowe funkcjonalności oraz rozwijać już...

The project is part of the Credit, Asset-backed & Securitized Products (CASP) division of an investment bank, focusing on platforms that support securitization and structured finance products. The current primary objective is migrating existing on-premise systems to a modern Microsoft Azure cloud environment, transforming legacy architecture into scalable,...

📍 Gdańsk / Gdynia | model hybrydowy (2 dni w biurze, 3 dni zdalnie)Dołącz do zespołu rozwijającego nowoczesną platformę wspierającą zautomatyzowane procesy biznesowe w środowisku enterprise. Projekt realizowany jest od podstaw (greenfield), z dużym naciskiem na jakość, automatyzację oraz nowoczesne podejście do...

You will join a long-term, enterprise-scale project for a global client in the investment banking domain. The project focuses on building and evolving a set of mission-critical backend services that support complex business workflows, regulatory processes, and system integrations across the bank’s ecosystem. The platform is based on a distributed...

As a recruitment company, DCG understands that every business is powered by experienced professionals. Our management style and partnership approach enable us to meet your needs and provide continuous support. Due to our ongoing growth and the large number of recruitment projects we undertake for our partners, we are currently looking for: Senior Backend...

Hybrid role based in Poland Join Our Mission 🚀 Help ambitious founders scale their businesses through innovative financing solutions. We value curiosity, continuous learning, and impactful problem-solving. Tech You’ll Use 🔧 - Core: Java 21, Spring Boot/Cloud 3.3 - Infra: GCP, Kubernetes - Databases: SQL/NoSQL (picked per use case) Why...

Poszukujemy doświadczonego Backend Java Developera, który dołączy do zespołu odpowiedzialnego za rozwój i utrzymanie kluczowych aplikacji biznesowych. Jeśli masz minimum 4 lata doświadczenia w tworzeniu aplikacji backendowych w Javie, cenisz wysoką jakość kodu i dobrze odnajdujesz się w środowisku Scrum – zapraszamy do aplikowania. Twoje...

Company DescriptionAre you ready to take ownership of mission-critical backend systems in a high-load environment? We are looking for a Senior Java Developer to join our engineering team in Warsaw.This is a hybrid role with 3 days per week in the office, giving you the perfect balance between collaboration and flexibility. At Sigma Software, we value...

Senior Software Development Engineer (Java)Job DescriptionWhy Altium 365 Software Engineering?Build the cloud platform that’s transforming electronics design. Altium 365 for cloud lets design engineers communicate, collaborate and bring their ideas to market more efficiently than any platform in the industry. These are some of the R&D Software Engineering...

Astek poszukuje Senior Test Automation Engineer w pełni zdalnym trybie pracy z Polski. Praca w sektorze healthcare/oncology tech obejmuje projektowanie strategii testów, rozwijanie frameworków automatyzujących i aktywny udział w architekturze oraz procesach CI/CD.Wymagana jest umiejętność tworzenia testów w Javie i TypeScript, doświadczenie w...

Jit Team in Poland is seeking a Senior Full Stack Developer (or Frontend with backend potential) to join a greenfield financial project. You will design and build with Java 17+, Spring Boot, and React, collaborating with business teams in an Agile setup.The role offers a hybrid model from multiple Polish cities and a chance to work with an international...

Company Overview At Motorola Solutions, we believe that everything starts with our people. We’re a global close-knit community, united by the relentless pursuit to help keep people safer everywhere. We build and connect technologies to help protect people, property and places. Our solutions foster the collaboration that’s critical for safer communities,...

Jesteśmy firmą z branży ubezpieczeniowej i tworzymy oprogramowanie na własny użytek — naszą platformę porównywania i sprzedaży ubezpieczeń. To duży, żywy system: kilkadziesiąt mikroserwisów. Pracujemy w modelu AI-assisted development — Claude Code jest u nas standardowym narzędziem pracy (kodowanie, code review, debugowanie), a nie...

Etteplan, oddział Industrial Software Solutions w Polsce, poszukuje Senior Java Developera z doświadczeniem w React do zespołów pracujących nad zaawansowanymi rozwiązaniami IT dla przemysłu. Praca nad projektem od backendu w Javie po frontend w React.Oczekujemy doświadczenia z Spring/Spring Boot, projektowania REST API, pracy z bazami danych oraz...

Project description The project is part of the Credit, Asset-backed & Securitized Products (CASP) division of an investment bank, focusing on platforms that support securitization and structured finance products. The current primary objective is migrating existing on-premise systems to a modern Microsoft Azure cloud environment, transforming legacy...

Alarm.com is expanding a Kraków-based team and seeks a Software Engineer II (Android & Backend). The role blends native Android development with backend services, offering opportunities to learn from senior engineers and deliver features used by millions of customers.You will work on IoT-driven security and energy analytics platforms, with exposure to...

EPAM is seeking a skilled Senior Java Software Developer with Kafka and Flink to join an established engineering team delivering strategic regulatory reporting solutions for a top-tier global investment bank. The platform sits at the heart of the bank's operations processing millions of messages daily under strict SLAs to ensure complete, accurate, and...

EPAM Systems, Kraków, seeks a Senior Java Software Developer to join a team delivering regulatory reporting solutions for a global investment bank. You will develop Java-based apps, design infrastructure, and guide best practices in a collaborative, agile environment.Requirements include Java 8, Spring/Spring Boot, Kafka, Flink, and strong English...

For our client an IT company specializing in new product development and R&D, focused on solving complex challenges in the tech industry we are looking for a Senior Java Developer based in Poland or Lithuania.Responsibilities Feature development — design, implement, and integrate new functionality using Java 17–21 and the Spring ecosystem; participate...