senior java backend engineer java 21 spring boot

BEC Financial Technologies in Warszawa is seeking a skilled Java backend engineer to join our Technology Transformation Program. You will design and implement Java-based integrations for core banking services, collaborate with analysts and architects, and contribute to scalable, reliable software in a regulated environment.You will work on RESTful APIs,...

Intellias is partnering with a Fortune 100 Midwest-based industrial manufacturer to modernize cloud services and data products powering a global network of dealers, enterprise customers, and internal business units.You will design, develop, and maintain scalable Java 21, Spring Boot 3.x microservices, and build event-driven data pipelines on AWS, Snowflake,...

RubyPlay is seeking a Senior Java Services Engineer to join the Engineering Team. You will work on scalable, low-latency server-side game services using Modern Java (Java 17/21+), collaborating with game designers, product teams, and client developers to deliver high-quality gaming experiences to players worldwide.The role is remote-friendly with a strong...

A digital bank is seeking a Java Developer to work on transformational projects within their Banking as a Service model. You will design and implement scalable applications while collaborating with a team. The role involves code reviews, troubleshooting, and mentoring less experienced members. Ideal candidates should have a minimum of 5 years of Java...

LTM is seeking a Senior Software Engineer in Kraków, Poland. The role focuses on designing, developing, and maintaining cloud-based applications, primarily using Java. Candidates should have strong engineering fundamentals, good communication skills, and ideally experience with Java frameworks. Engagement with diverse stakeholders and a focus on...

ING Hubs Poland is looking for a talented Engineer III or IV to join its high-impact engineering team in Katowice. You will develop robust backend services central to the trading lifecycle and enhance system performance in a dynamic environment.The ideal candidate has over 5 years of experience in production-grade software development, strong Java and Spring...

Luxoft Poland seeks a senior Java backend engineer to join a Regulatory Reporting Platform for a large US investment bank. You will design, develop, and maintain scalable data processing pipelines using Java and Apache Spark, enabling regulatory reports across hundreds of jurisdictions and high-volume workloads.Work with a distributed team across Ukraine,...

Join the Java Engineering Team at a top N. American Bank Are you a Java engineer who enjoys working on large scale and high performance software? Do you love working with smart people on meaningful technology? Want to work in capital markets on financial trading systems? If so, read on. The Role at a Glance Senior Java Backend Engineer Fully remote for a top...

Sii Poland is seeking a Senior Java Developer to join a team delivering a modern enterprise data integration and processing platform for global logistics and transportation. You will design and implement scalable backend services, microservices, and event-driven integrations using Java and Spring Boot.You will participate in architecture discussions,...

🔵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...

About ARQARQ is one of the fastest-growing fintechs in the world. Our mission is to redefine how people interact with money across borders, building the infrastructure to move value seamlessly. We’re still early in our journey, which means every person who joins shapes the future of our product, culture, and growth. If you’re excited by big challenges,...

ALTEN Polska poszukuje kandydatów na stanowisko Java Software Engineer w kategorii Backend, w Warszawa. To świetna propozycja dla osób z doświadczeniem na poziomie mid i znajomością Java, Spring Boot, Kafka, MQ, Docker, Git, PostgreSQL, MongoDB, Maven, JUnit, Spock, Jenkins, GitLab, OpenShift, Kubernetes, Jira, Confluence, Grafana, Kibana, Dynatrace,...

A leading e-commerce firm is seeking a Senior Backend Java/Kotlin Engineer for a unique opportunity to work on innovative solutions in finance. You will design and build e-commerce systems that provide customers with seamless shopping experiences. Ideal candidates will have 4+ years of experience with e-commerce projects, strong skills in Java/Kotlin, and be...

GFT Technologies Poland seeks a Lead Full Stack Engineer to join a global Risk & Compliance team. You will design, develop, and maintain modern applications with a strong backend focus in Java and Spring while contributing to frontend work using React and TypeScript.You will guide technical decisions and ensure high-quality software delivery. You will design...

Sii Poland is recruiting a Senior Fullstack Developer to work on a banking sector project in a fully remote, Agile scrum team. The position emphasizes collaboration with senior developers and colleagues across locations, enabling continuous skill development and challenging assignments.The role requires strong backend Java with Spring/Hibernate and frontend...

Nordea Group Technology is seeking an Expert Java Developer / Solution Designer to design and build backend services using Java and Spring Boot within a modern microservices landscape. You will shape architecture and drive AI‑assisted development to accelerate delivery and quality.You will collaborate with business stakeholders, translate needs into...

Branchspace works with major travel brands, including airlines, to design and deliver world-class digital applications. We are a fast-growing team with our head office in central London and the main engineering center in Krakow. We have significant experience providing digital innovation and consulting services to travel brands and tech vendors. We are...

Sii Poland is recruiting a Senior Fullstack Developer for a banking sector project with a 100% remote arrangement. The role requires strong backend and frontend capabilities, primarily using Java, Spring, Hibernate, Angular, and TypeScript, to deliver scalable corporate banking solutions.Ideal candidates have 5+ years of fullstack experience, proficiency...

Role Summary We are looking for a Java Backend Engineer to design, develop, and continuously improve intelligent digital products and services that support employees and HR stakeholders, with AI at the core. Required Skills & Experience Strong experience in Java and Spring Boot, including Spring Batch and Spring Cloud, and building microservices. Proficiency...

Unicorn Foundations At Cosmose AI, we’re building smart, innovative technology that’s redefining digital marketing and content distribution. Since launching in 2014, we’ve gone from transforming offline shopping to powering personalized content experiences through AI. Founded by Miron Mironiuk, our journey began with one bold idea - and it has grown...