Junior Java Developer at Netcompany Banking Services | Warsaw

Join our dynamic team at Netcompany as a Junior Java Developer, where you'll have the opportunity to work on innovative banking solutions. In this role, you'll collaborate with experienced developers to design, implement, and support cutting-edge applications that empower our clients to achieve their financial goals. Your contributions will directly impact o…

We are seeking a highly skilled Java Developer to join our team, focusing on the implementation of Investment Fund Services for SME clients. This role involves enhancing both mobile and web applications.Designing technical solutions and participating in their documentation.Collaborating with analysts, developers, testers, and business stakeholders.Participating in team meetings and providing ongoing project support.Developing, implementing, and testing features that support investment fund operations.Integrating with existing system components.

Join Box Inc. as a Mid-Level Java Engineer and take part in building innovative solutions that streamline processes and enhance user experiences. You will collaborate with a team of talented developers, contributing to the design, development, and maintenance of high-quality software applications.We value creativity, teamwork, and a passion for technology. If you are eager to tackle challenging problems and develop your skills in a supportive environment, we would love to hear from you!

Develop innovative ideas for refactoring existing systems.Oversee high-level architectural design and ensure it aligns with business goals.Serve as a senior developer and a guiding leader within the team.Demonstrate a proactive approach with a commitment to continuous learning and professional development.Assist business stakeholders and product owners by addressing technical inquiries and ensuring smooth delivery.Communicate complex technical concepts in a clear and understandable manner to non-technical stakeholders.Integrate innovative solutions into daily workflows.Ensure that new components and processes adhere to established architectural standards.Collaborate closely with developers in daily operations.Possess in-depth knowledge of relevant business processes and requirements.Work alongside the Java Competence Lead and other Tech Leads to enhance and streamline processes.Champion operational excellence within the team.Handle administrative responsibilities in collaboration with team members.Conduct technical interviews to assess candidate qualifications.

Role Overview Miratech is looking for a Senior Full Stack Developer with experience in Java and Angular. Based in Warsaw, this role joins an engineering team that delivers solutions for a range of client projects. What You Will Do Work on full stack development tasks using Java and Angular Collaborate with engineers to build and improve client-facing applications Contribute to project planning and technical discussions What We Offer Opportunities to develop technical skills in a team setting Collaborative work environment Projects that support client success

Join our dynamic team as an Angular Developer, where you will be instrumental in developing and modifying code for the front-end of a brokerage platform. Collaborate closely with full-stack and back-end developers to create comprehensive solutions using Java and Angular.Contribute to system architecture changes.Implement new features using Angular.Refactor existing code to enhance performance.Develop integrations with RESTful services.Optimize application performance and implement security solutions.Assist with technical design and documentation.

Join our dynamic team at Veeam Software, a leader in backup solutions, as a QA Automation Engineer specializing in Java. In this role, you will be instrumental in ensuring the highest quality of our software products through automated testing and continuous integration practices. You will work collaboratively with developers and product teams to design, develop, and execute automated test scripts, ensuring that our applications meet the highest standards of performance and reliability.

About Us1GLOBAL is an innovative technology leader in mobile communications, offering unparalleled global connectivity solutions for both enterprises and consumers. Our cutting-edge telecom platform features a robust, owned global mobile core network, state-of-the-art in-house developed eSIM technology, and a wide array of telecom licenses, allowing us to operate as a fully regulated telecommunications provider in 40 countries around the globe.We proudly serve some of the world’s most prominent banks, enterprises, and digital-first businesses, including neo-banks, global FMCG leaders, travel industry giants, and payment service providers. Currently, we empower over 70 million people and devices worldwide, facilitating our clients to launch, scale, and innovate confidently within the mobile ecosystem.1GLOBAL is a rapidly growing, profitable entity, projecting full-year revenues exceeding US$200 million and profits over US$25 million by 2025. Our robust cash flow supports continuous investments in infrastructure, platform innovation, and global expansion. Recent years have been pivotal for us, marked by significant enterprise and consumer client acquisitions that enhance our status as a formidable global mobile connectivity provider, dedicated to helping consumer brands thrive in telecommunications.Founded in 2022 by seasoned technology entrepreneurs Hakan Koç and Pyrros Koussios, 1GLOBAL is at the forefront of shaping the future of global telecommunications. We operate as a fully regulated Mobile Virtual Network Operator (MVNO) in 12 countries and as a regulated telecom operator in an additional 28 markets. Headquartered in the Netherlands, with premier R&D centers in Lisbon, Berlin, and São Paulo, our team of nearly 500 experts across 15 countries is unified by a singular mission: to redefine global mobile connectivity through unparalleled technology, scale, and operational excellence.About the TeamThis senior, hands-on Java position focuses on scalable backend systems, long-term ownership, and addressing real-world production challenges. You will be part of a newly formed backend team in Warsaw, dedicated to advancing our eSIM, global connectivity platform, and IoT solutions.The role entails:Enhancing and modernizing existing systems,Developing new services and greenfield components,Boosting reliability, performance, and maintainability across the platform.As a senior engineer, you will also lead the evolution of testing methodologies as systems evolve.

Join us at capital, a premier trading platform expanding globally. Our award-winning products, recognized for their advanced technology and exceptional client experience, set the standard in the industry. We are on the lookout for top-tier talent to join our dynamic engineering team.We are currently enhancing our Backend Team and seeking passionate Java Software Engineers with a keen interest in trading! Our engineering team is crucial in maintaining the performance, security, and reliability of our products. With a focus on delivering superior performance, ensuring compliance, and protecting client data, your contributions will significantly enhance the trading experience for our clients.We value engineers who not only write exceptional code but also embody our core values. We are searching for individuals who are ready to move quickly, willing to innovate and develop, who understand the importance of listening, respecting, and supporting, strive to exceed client expectations, and take full ownership for achieving real impact.

Join Tietoevry as a Test Automation Engineer specializing in Java and Payments/Swift. In this full-time role, you will be at the forefront of technology, enhancing payment systems through automated testing solutions. Collaborate with a dynamic team to deliver high-quality software that meets our clients' needs.

Join Altersolutions as a Python Developer and become a key player in our dynamic team. You will work with cutting-edge technology to develop robust and efficient applications that enhance our services. If you are passionate about coding and eager to tackle challenges, we want to hear from you!

Join moss as a Senior Mobile Engineer specializing in Android development. We are seeking a passionate and innovative engineer to lead our mobile projects, enhance user experience, and contribute to a dynamic team. Your expertise will help shape the future of our mobile applications, ensuring they are robust, user-friendly, and scalable.

Sperasoft seeks a Rendering Developer to strengthen the visual quality of its games. This is a remote role based in Warsaw, Masovian Voivodeship, Poland. The position centers on building advanced graphics engine features for both PC and console titles. Regular collaboration with engineers, artists, game designers, and QA specialists is part of daily work. Key responsibilities Design and develop graphics engine components for PC and console platforms. Implement and optimize rendering systems, addressing both high-level and low-level needs. Write clean, efficient, and maintainable C++ code. Contribute to technical decisions and influence the rendering architecture. Participate in all stages of game development, from prototyping through release. Mentor and support other engineers as needed.

Join our dynamic team at Altersolutions as a Fullstack .NET Angular Developer! In this role, you will have the opportunity to work with cutting-edge technologies and contribute to innovative projects that impact our clients positively. Collaborate with cross-functional teams to design, develop, and implement robust applications that meet business requirements.

Role Overview Margo Group is looking for an Orchestrated Developer in Warsaw. This position focuses on building and maintaining orchestration capabilities that support smoother operations and stronger client outcomes. What You Will Do Develop and manage orchestration systems to improve operational efficiency Work closely with cross-functional teams to apply effective software development practices Contribute to project success by supporting technology solutions that serve client needs Team and Culture Join a group that values collaboration and practical innovation in technology. The team works together to solve problems and deliver results for clients and colleagues alike.

Design, develop, and enhance API platforms and application security solutions using Java (JDK 21).Deploy and manage software solutions on the OpenShift platform.Create and maintain documentation to assist the organization in the implementation of developed solutions.Develop tools and procedures for effective monitoring, logging, and deployment optimization.Execute essential operations including patching and certificate management.

About Our Team At SumUp, we provide a comprehensive Point-of-Sale (POS) solution designed to empower businesses such as cafes, shops, bars, and salons to streamline operations and foster growth. Our platform encompasses a variety of features including product catalogs, inventory management, business analytics, compliance assistance, and loyalty programs. The Fiscalization team is dedicated to ensuring compliance in countries like Italy, Sweden, Norway, Belgium, and Austria, among others. We are also pioneering the integration with third-party services for fiscalizing receipts. As a Senior Backend Engineer, you will work alongside a vibrant, cross-functional team comprising Product Managers, Designers, Engineering Managers, and fellow engineers. Your Role In this position, you will develop secure backend systems that ensure SumUp's POS products are compliant across various countries on our roadmap. You will collaborate with the Fiscalization squad to devise unique solutions tailored to the challenges in each market. We are looking for a developer who values user-centric design, precision, and seamless collaboration. You will excel in a structured communication environment and thrive in a cross-functional team. This is a B2B role based in Warsaw. Key Responsibilities Design and maintain fiscal compliance solutions to support SumUp's expansion across Italy, Sweden, Norway, Belgium, Austria, and other European markets. Develop integrations with third-party services for receipt fiscalization and regulatory reporting. Navigate SumUp's intricate POS ecosystem and familiarize yourself with fiscalization frameworks across multiple jurisdictions. Work collaboratively with team members and stakeholders distributed across 5+ cities in a hybrid working model. You Will Succeed in This Role If You Have: 5+ years of experience in backend engineering with expertise in Java and/or Kotlin. A solid understanding of system architecture, design principles, data modeling, and API development. Hands-on experience with distributed and fault-tolerant systems. Proficiency in AWS and Kubernetes. Strong knowledge of Kafka, PostgreSQL, and CQRS.

About the Role margo-group is hiring an Agentforce Developer for its Warsaw office. This team builds technology that connects shoppers and brands across the open internet, using proprietary commerce intelligence and AI-supported decision-making. The company values diverse perspectives, ongoing innovation, and an inclusive workplace where individuals can help shape the future of digital commerce.

Veeam Software seeks an experienced C# Developer to join its Warsaw team. This position is designed for professionals who take pride in building dependable, thoughtfully designed software. Role overview The team emphasizes collaboration and values technical excellence. Developers here work together to achieve high-quality outcomes and maintain a supportive environment. What you will do Contribute to the design and development of software using C# Focus on delivering reliable and maintainable solutions Work closely with colleagues to achieve shared goals Requirements Professional experience with C# development Commitment to quality and attention to detail Interest in collaborative problem-solving

Creatunity LLC is on the lookout for a talented and experienced technical leader to oversee our team of senior full-stack developers. This pivotal role requires a strong background in full-stack engineering alongside a proven capacity for leadership in developing and launching innovative IT products and applications. The ideal candidate has a history of writing production-quality code, managing delivery processes, mentoring developers, and successfully deploying intricate solutions powered by AI-assisted development tools. Contract Type: Independent Contractor AgreementWhat You'll Do Lead a skilled team of senior full-stack developers while coordinating technical execution across various projects. Develop scalable full-stack features utilizing Next.js, React, TypeScript, Prisma, and PostgreSQL. Employ Cursor IDE and AI coding assistants to enhance development workflows and boost productivity. Architect systems, design database schemas, and fine-tune performance-critical queries. Integrate and manage third-party APIs (e.g., Stripe, Supabase, music platforms, SaaS services). Create advanced admin dashboards, internal tools, and intricate user interfaces. Manage projects from inception to completion — from gathering requirements and system architecture to deployment and optimization. Set best practices for code quality, testing, documentation, and deployment pipelines. Mentor developers, conduct code reviews, and foster engineering excellence throughout the team.