Java Developer z Kafką

🏢 Summary: Full-Stack / Backend Developer role focused on building and maintaining scalable applications and REST APIs that support client products. The position involves developing new integrations, enhancing existing backend and frontend systems, and improving platform performance and reliability. You will contribute to architecture improvements and work within a cloud-based environment. 🗂️ Requirements: Minimum 3 years commercial experience, Experience with Java, Experience with Spring Boot, Experience with AWS, Experience with MongoDB, Experience with PostgreSQL, Experience with React.js, Experience designing REST APIs, Knowledge of backend architecture, Experience with cloud environments, Understanding of clean code principles, Experience working in Agile environment 📃 Skills: Java, SpringBoot, AWS, MongoDB, PostgreSQL, React, REST, Agile, Cloud, Architecture 🏢 Description: We are looking for an experienced Full-Stack / Backend Developer to join our team and help build scalable applications and APIs supporting our clients’ products. You will work on both backend and frontend solutions, contributing to product development, system improvements, and ongoing platform stability. Your Responsibilities Develop new APIs to support client integrations and business features. Maintain and enhance existing backend and frontend applications. Fix bugs and improve application performance and reliability. Upgrade and support operational aspects of the platform. Identify opportunities to improve product quality, architecture, and development processes. Collaborate with developers, product teams, and stakeholders to deliver high-quality solutions. Participate in code reviews and contribute to best engineering practices. Required Skills Minimum 3 years of commercial experience with: Java Spring Boot AWS MongoDB PostgreSQL React.js Experience designing and developing REST APIs. Knowledge of backend architecture and modern web applications. Experience working with cloud-based environments (AWS). Understanding of software development best practices and clean code principles. Ability to work in an Agile development environment.

🏢 Summary: Full-Stack Software Developer role focused on developing and modernizing a complex platform using Python and React. The position involves backend and frontend ownership, migration to a modern tech stack, and deployment in AWS within an Agile environment. The developer will contribute to architectural decisions and CI/CD processes. 🗂️ Requirements: 5+ years of software development experience, Strong experience with Python, Experience with React, Practical knowledge of PostgreSQL, Experience designing and consuming REST APIs, Experience with AWS, Experience with CI/CD pipelines, Experience with end-to-end testing tools, Experience working in Agile environments (Jira or Confluence) 📃 Skills: Python, React, PostgreSQL, REST, AWS, GitHubActions, Playwright, CICD, Jira, Confluence 🏢 Description: We are currently looking for a Full-Stack Software Developer to join an international team working on the development and modernization of a complex software platform. The role involves taking ownership of both backend and frontend development during an ongoing project transition, including migration of existing functionalities to a modern technology stack. You will collaborate with a distributed Agile team and have real influence on the technical direction of the frontend architecture. Key Responsibilities Design, develop, and maintain full-stack applications using Python and React Develop and maintain RESTful APIs Work with PostgreSQL databases Participate in the migration of existing application components to a modern frontend framework Implement end-to-end testing using tools such as Playwright Manage CI/CD pipelines using GitHub Actions Deploy and maintain applications in AWS Collaborate with engineers in an international Agile environment Contribute to architectural discussions and technical decisions Requirements 5+ years of experience in software development Strong experience with Python Experience with React Practical knowledge of PostgreSQL and REST APIs Experience working with AWS Familiarity with CI/CD pipelines (e.g., GitHub Actions) Experience with end-to-end testing tools (e.g., Playwright) Experience working in Agile environments using tools such as Jira or Confluence Strong communication skills and a proactive mindset Nice to Have Experience with NumPy or SciPy Experience working in distributed engineering teams Experience participating in application migrations or system transitions

🏢 Summary: Full-Stack Developer role focused on building and maintaining automation solutions for Trading Front and Back Office processes. The position involves developing scalable systems for deal capture and settlement, leveraging Python, relational databases, and modern DevOps practices. The role emphasizes robust governance, logging, and cloud-based infrastructure to ensure reliable and efficient operations. 🗂️ Requirements: Proficiency in relational databases (PostgreSQL, Oracle DB), Strong experience with Python and Flask, Expertise in test automation, Experience with CI/CD pipelines, Hands-on experience with Azure services, Experience with Docker and Kubernetes, Proficiency in Angular, Ability to develop automation solutions for trading processes 📃 Skills: Python, Flask, PostgreSQL, Oracle, Angular, Azure, Docker, Kubernetes, CI/CD, SQL, Automation 🏢 Description: Introduction & Summary We are seeking a skilled Full-Stack Developer with a focus on Trading & Automation. In this role, you will be instrumental in transforming complex commercial contracts through reliable and scalable digital processes. Your expertise in relational databases, Python, and automation frameworks will be essential in establishing robust systems that enhance the efficiency of business operations. Main Responsibilities Develop automation solutions for deal capture and settlement in Trading Front and Back Office. Ensure compliance and protection of processes through governance and improved logging environments. Collaborate with team members and stakeholders to align solutions with business requirements. Maintain operational excellence through best practices and cost optimization. Key Requirements Proficiency in relational databases (PostgreSQL, Oracle DB). Familiarity with Python and frameworks like Flask. Expertise in test automation, CI/CD pipelines, Azure services, Docker, and Kubernetes. Proficiency with web framework Angular. Ability to work effectively in an agile environment and take ownership of tasks. Other Details This position is based in Warsaw, Poland, where the consultant is required to be on-site for 2 days in week.

🏢 Summary: Senior FullStack Developer role focused on developing and modernizing a large-scale corporate banking platform. The position involves building and maintaining backend services and Angular frontend components, delivering new features, fixing defects, and supporting production systems within a microservices and monolithic architecture. The role includes active participation in system modernization and REST API development in an Agile environment. 🗂️ Requirements: 5+ years commercial experience with Java 7/8, Experience with Spring Framework and Spring Boot, Experience with Maven, Experience with SQL, Experience with Git, Experience with JSP, Experience with JavaScript, Experience designing and developing REST APIs, Experience in backend service design and implementation, Strong knowledge of unit testing practices, 2+ years experience with Angular, Experience with Jasmine, Experience working with legacy code, Experience working in Agile environment 📃 Skills: Java, Spring, SpringBoot, Maven, SQL, Git, JSP, JavaScript, Angular, Jasmine, REST, Microservices, Agile 🏢 Description: About the Project We are looking for an experienced Senior FullStack Developer to join an international team working on a large-scale corporate banking platform. The application enables corporate clients to manage accounts, execute payments and transfers, handle files and confirmations, and perform a variety of banking operations through a secure online portal. As part of the development team, you will be responsible for maintaining and enhancing a business-critical application, including the delivery of new features, bug fixes, production incident resolution, and implementation of regulatory and business-driven changes. The system consists of both microservices and monolithic components. The team is currently on a modernization journey, gradually transforming the existing platform into a more modern architecture. The working language is English, and the team follows SAFe Agile principles. Responsibilities Design and implement backend services based on business and technical requirements. Develop and maintain REST APIs. Contribute to frontend development using Angular. Write and maintain unit tests. Analyze, maintain, and enhance existing code, including legacy components. Collaborate with cross-functional and international teams. Participate in system modernization and architectural improvements. Support production systems and troubleshoot issues when required. Requirements Must Have 5+ years of commercial experience with: Java 7/8 Spring Framework Spring Boot Maven SQL Git JSP JavaScript Experience in designing and developing REST APIs. Experience in backend service design and implementation based on specifications. Strong understanding of unit testing practices. 2+ years of experience with: Angular Jasmine Experience working in an Agile environment. Willingness to analyze and work with legacy code. Strong communication and collaboration skills. Fluent English (spoken and written). Nice to Have Knowledge of SOLID principles. Familiarity with software design patterns. What We Offer Opportunity to work on a large-scale enterprise platform within the financial sector. Participation in system modernization and transformation initiatives. International and collaborative work environment. Long-term cooperation in a stable project. Exposure to both modern and legacy technologies. Real impact on technical solutions and product development.

🏢 Summary: Full-Stack Developer role focused on building automation solutions for Trading Front and Back Office processes, including deal capture and settlement. The position involves designing scalable digital systems, improving governance and logging, and ensuring operational excellence using modern DevOps and cloud practices. The role requires strong expertise in databases, Python, web technologies, and containerized environments. 🗂️ Requirements: Proficiency in relational databases (PostgreSQL, Oracle DB), Strong knowledge of Python and Flask, Experience with test automation, Experience with CI/CD pipelines, Experience with Azure services, Experience with Docker and Kubernetes, Proficiency in Angular, Ability to work in an agile environment, Ability to take ownership of technical tasks 📃 Skills: Python, Flask, PostgreSQL, Oracle, Angular, Docker, Kubernetes, Azure, CI/CD, SQL, Automation, Git 🏢 Description: Introduction & Summary: We are seeking a skilled Full-Stack Developer with a focus on Trading & Automation. In this role, you will be instrumental in transforming complex commercial contracts through reliable and scalable digital processes. Your expertise in relational databases, Python, and automation frameworks will be essential in establishing robust systems that enhance the efficiency of business operations. Main Responsibilities: Develop automation solutions for deal capture and settlement in Trading Front and Back Office. Ensure compliance and protection of processes through governance and improved logging environments. Collaborate with team members and stakeholders to align solutions with business requirements. Maintain operational excellence through best practices and cost optimization. Key Requirements: Proficiency in relational databases (PostgreSQL, Oracle DB). Familiarity with Python and frameworks like Flask. Expertise in test automation, CI/CD pipelines, Azure services, Docker, and Kubernetes. Proficiency with web framework Angular. Ability to work effectively in an agile environment and take ownership of tasks. Other Details This position is based in Warsaw, Poland, where the consultant is required to be on-site for 2 days in week.

🏢 Summary: Full Stack Developer role focused on building and enhancing a global web application that supports Account Managers with data access and AI-powered insights. The position involves developing scalable, data-driven features using modern front-end and back-end technologies within an Agile, international team. The product leverages REST APIs, data pipelines, and LLM-based solutions to improve user productivity. 🗂️ Requirements: Strong experience with React, Proficiency in TypeScript or JavaScript, Experience with Node.js, Knowledge of Express or NestJS, Understanding of RESTful APIs, Experience with Git, Experience with CI/CD workflows, Proficiency in English 📃 Skills: React, TypeScript, JavaScript, Node.js, Express, NestJS, REST, Git, CI/CD, Java, Spring, AWS, Lambda, S3, CloudWatch, BigQuery, LLM 🏢 Description: About the Project We’re looking for an experienced Full Stack Developer to join our high-performing team and build a product for a global company in the MLM industry. This global web application supports Account Managers across multiple markets and is designed to enhance their experience and reduce time to data access. The solution: - Provides Account Management support for an international organization with global reach. - Captures qualitative lead information to improve decision-making. - Enhances Account Managers’ ability to consult effectively with customers. - Leverages LLM (Large Language Model) agents to improve user performance and productivity. You’ll join an experienced, international team focused on delivering scalable, data-driven, and user-friendly applications used across the world. Your Responsibilities - Develop and maintain web application features using React on the front-end. - Implement server-side logic using Node.js. - Collaborate with UX/UI designers and back-end developers to deliver high-quality solutions. - Integrate REST APIs and data pipelines. - Participate in Agile ceremonies, code reviews, and design discussions. - Contribute to continuous improvement and innovation initiatives within the project. Requirements - Strong experience with React or other front-end framework (TypeScript/JavaScript). - Experience with Node.js (Express or NestJS preferred). - Understanding of RESTful API design and integration. - Experience with Git and CI/CD workflows. - Good communication skills and proficiency in English (international team environment). Nice to Have - Experience with Java (Spring Boot). - Familiarity with AWS cloud services (Lambda, S3, CloudWatch, etc.). - Experience with Google Cloud BigQuery. - Understanding of LLM/AI-assisted application design principles. We Offer - Work on a strategic, global-scale project with cutting-edge technologies. - Flexible working hours. - B2B or employment contract terms. - Opportunity to collaborate with international experts in a modern Agile environment. - Continuous learning and participation in innovative product development.

🏢 Summary: The role involves developing and enhancing a language proficiency testing platform as part of an agile team, focusing on scalable backend and cross-platform frontend solutions. The position requires strong experience in microservices, serverless architecture, CI/CD, and cloud-based systems, along with active participation in code reviews and technical decision-making. You will work on improving code quality, testing practices, and system reliability in a remote or hybrid model. 🗂️ Requirements: 7+ years of software development experience, Fluency in English, Experience with microservices architecture, Experience with serverless architecture, Experience with CI/CD pipelines, Strong knowledge of unit, integration, and E2E testing, Strong knowledge of Java and related frameworks, Experience with relational databases and MongoDB, Experience with messaging systems (AWS SQS required), Strong knowledge of JUnit, Knowledge of backend security best practices and OWASP, Experience with AWS cloud services, Experience with Docker, Experience with cross-platform frontend development, Experience with Angular and React ecosystems 📃 Skills: Java, Play, Spring, SBT, Maven, Gradle, MongoDB, SQL, SQS, RabbitMQ, Kafka, JUnit, OWASP, AWS, Docker, Selenium, Sonar, Angular, TypeScript, React, Redux, MUI, Electron, Axios, Jest, Vitest, Karma, Jasmine 🏢 Description: Full Stack Developer will involve developing and enhancing a platform designed for conducting language proficiency tests. Your responsibilities: Work on an agile engineering team, following Agile best practices while writing maintainable and scalable code and influencing team decisions Collaborate with stakeholders to design and test new product functionalities Review the code of other team members and provide constructive direction. Promote a culture of sharing through mentoring and knowledge exchange Drive continuous improvement of code quality, customer experience, and maintainability of products/features Independently clarify technical requirements, assess development estimates, and apply a broad range of design approaches We are looking for you, if you have: 7+ years of experience Fluency in English is a must Experience on Microservice and Serverless architecture Experience on CI/CD practices Solid testing knowledge – E2E, unit testing, integration testing, etc. Technicall skills: Java: Play3 Framework/Spring Boot SBT, Maven, Gradle MongoDB and Relational Databases Bus messaging systems. AWS SQS is a must, but other technologies like RabbitMQ and Kafka will also be considered Strong Junit knowledge Backend security best practices, including familiarity with OWASP Experience with AWS technologies, Docker, Selenium, Sonar Cross-platform development Angular 13 + TypeScript React + Redux + Material UI (MUI) + TypeScript Electron Axios Jest, Vitest, Karma and Jasmine We offer: Participation in interesting and demanding projects Flexible working hours A great, non-corporate atmosphere Stable employment conditions (contract of employment or B2B contract) Opportunities for development and promotion Attractive package of benefits Work model: remote or hybrid (2 days per week from the office) We reserve the right to contact the selected candidates.

🏢 Summary: 100% remote B2B opportunity to lead a development team in building and maintaining scalable applications within an agile environment. The role combines hands-on full-stack development with strategic technical leadership, focusing on robust system architecture and faster delivery of new solutions. Long-term cooperation with a two-stage recruitment process including a technical test. 🗂️ Requirements: Proficiency in .NET, Proficiency in C#, Experience in full-stack development, Experience with front-end technologies, Experience with document-based databases, Knowledge of event-based messaging frameworks, Experience with cloud services, Experience with containerization, Ability to lead development teams, Experience working in agile environment 📃 Skills: .NET, C#, Angular, MongoDB, Cloud, Docker, Microservices, REST, Git 🏢 Description: Work model: 100% remote Start date: Flexible Rate: up to 215 PLN/h netto + VAT Contract : B2B, long-term cooperation (12-month contract up front + extensions) Recruitment process : 2 stages, including a technical test estimated to take 2-4 hours. Summary: The role focuses on leading the development team to create new solutions and maintain systems within an agile environment, emphasizing the importance of robust applications and strategic direction. Main Responsibilities: Lead the development team in creating and maintaining applications. Adopt wider technology practices and address the speed of new application delivery. Engage in hands-on development while guiding the strategic direction of projects. Collaborate with teams to gather specifications and perform technical analysis. Navigate complex systems and ensure they are built to scale. Manage developer quality and capacity amidst organizational constraints. Key Requirements: Proficient in .NET and C#. Experience with full-stack development, including front-end technologies. Familiarity with document-based databases. Knowledge of event-based messaging frameworks. Experience with cloud services and containerization. Nice to Have: Prior experience in the banking or financial services sector. Familiarity with Angular or other modern front-end frameworks. Experience with MongoDB or similar environments. Other Details: Environment: .NET, C#, Angular, MongoDB, moving towards cloud solutions. Team Structure: Full Stack Developers working closely with Business Analysts.

🏢 Summary: Offer for a Full Stack Developer / Platform Engineer responsible for designing, developing, deploying, and maintaining modern applications and infrastructure environments. The role covers full application lifecycle management, including backend and frontend development, AI/ML solutions, containerization, Kubernetes administration, CI/CD, and production support. The position combines software engineering with infrastructure, networking, and monitoring responsibilities. 🗂️ Requirements: Very good knowledge of Python, JavaScript, TypeScript, Java, Experience with FastAPI and Flask, Experience with React.js and Node.js, Experience in AI, Machine Learning, Computer Vision, Experience with Docker and Docker Compose, Experience with Kubernetes administration, Experience with CI/CD and GitLab, Knowledge of PostgreSQL, Experience with Kafka, RabbitMQ or MQTT, Very good knowledge of Linux, Knowledge of networking concepts, Experience with MikroTik, Dell, Cisco, Knowledge of Zabbix, Ability to diagnose performance and environment issues, Knowledge of storage solutions QNAP, QSAN, Dell 📃 Skills: Python, JavaScript, TypeScript, Java, FastAPI, Flask, React, Node.js, Docker, Kubernetes, GitLab, CI/CD, PostgreSQL, Kafka, RabbitMQ, MQTT, Linux, Zabbix, AI, ML, LLM, ComputerVision, REST, DNS, MikroTik, Dell, Cisco, QNAP, QSAN 🏢 Description: Do naszego zespołu poszukujemy doświadczonej osoby na stanowisko: Full Stack Developer / Platform Engineer, która będzie odpowiedzialna za projektowanie, rozwój, wdrażanie oraz utrzymanie nowoczesnych systemów aplikacyjnych i środowisk infrastrukturalnych. Jest to rola dla osoby, która swobodnie porusza się zarówno w obszarze developmentu, jak infrastruktury. Szukamy kandydata, który potrafi samodzielnie budować aplikacje, rozwijać integracje, projektować architekturę usług, wdrażać je w środowiskach kontenerowych oraz utrzymywać pełny cykl życia aplikacji— od kodu, przez CI/CD, po monitoring, diagnostykę i utrzymanie produkcyjne. Python, FastAPI, Flask, React.js, Node.js, Docker, Kubernetes, GitLab CI/CD, PostgreSQL, Kafka / RabbitMQ /MQTT, Linux, AI / ML / CV, JAVA Development aplikacji i integracji: Projektowanie i rozwój aplikacji backendowych w Node.js / JAVA / Python (FastAPI, Flask) Rozwój aplikacji frontendowych z wykorzystaniem JavaScript / TypeScript oraz React.js. Projektowanie i rozwój REST API oraz integracji między systemami. Implementacja rozwiązań wykorzystujących AI / Machine Learning / LLM. Tworzenie i rozwój komponentów z obszaru Computer Vision, analizy obrazu oraz przetwarzania danych. Konteneryzacja i Kubernetes: Budowa, konteneryzacja i uruchamianie aplikacji z wykorzystaniem Docker oraz Docker Compose. Projektowanie, wdrażanie i administracja środowisk opartych o Kubernetes. Utrzymanie pełnego cyklu życia aplikacji uruchamianych w klastrach Kubernetes. Utrzymanie oraz diagnostyka podów, namespace’ów i workloadów. Analiza problemów wydajnościowych oraz błędów środowiskowych. Zapewnienie wysokiej dostępności i ciągłości działania usług. CI/CD, monitoring i utrzymanie: Projektowanie, rozwój i utrzymanie procesów CI/CD. Przygotowywanie oraz utrzymanie pipeline’ów wdrożeniowych w oparciu o GitLab / GitLab CI/CD. Automatyzacja buildów, testów, deploymentów i procesów utrzymaniowych. Monitoring środowisk developerskich, testowych i produkcyjnych. Wdrażanie i utrzymanie systemów monitoringu, logowania i alertingu (np. Zabbix). Administracja bazami danych PostgreSQL. Komunikacja, Linux i infrastruktura: Integracja komunikacji asynchronicznej (Kafka, RabbitMQ, MQTT). Administracja systemami Linux. Przygotowanie i utrzymanie środowisk serwerowych i kontenerowych. Diagnostyka sieci (DNS, routing, dostępność usług). Obsługa infrastruktury MikroTik, Dell, Cisco. Integracja i utrzymanie storage (QNAP, QSAN, Dell). Wymagania obowiązkowe: Bardzo dobra znajomość Python / JavaScript / TypeScript / JAVA. Doświadczenie z FastAPI i Flask. Doświadczenie w AI, Machine Learning i Computer Vision. Doświadczenie z React.js i Node.js. Bardzo dobra znajomość Linux. Doświadczenie z Docker, Docker Compose i Kubernetes. Doświadczenie w CI/CD i GitLab. Znajomość PostgreSQL. Doświadczenie z Kafka, RabbitMQ, MQTT. Znajomość zagadnień sieciowych. Doświadczenie z MikroTik, Dell, Cisco. Znajomość Zabbix. Umiejętność diagnozowania problemów. Znajomość storage (QNAP, QSAN, Dell). Mile widziane: Flutter, aplikacje mobilne, monitoring/observability, automatyzacja infrastruktury, mikroserwisy.

🏢 Summary: Senior Full-Stack Developer (Java) role in a product-focused team, responsible for developing and evolving a high-traffic application used daily by thousands of users. The position emphasizes backend development (80%) with frontend contributions, working in a Scrum team on new features, optimization, and cloud migration to GCP. The role offers real impact on technical decisions and product growth. 🗂️ Requirements: Minimum 5 years of experience with Java, Very good knowledge of SQL, Strong knowledge of Spring, Strong knowledge of Hibernate, Experience with Angular, Experience working in Agile methodology, English proficiency at B2 level 📃 Skills: Java, Spring, Hibernate, Angular, SQL, PostgreSQL, MongoDB, GCP, Scrum, Agile 🏢 Description: Dla naszego Klienta, dynamicznie rozwijającej się firmy produktowej , tworzącej nowoczesne rozwiązania technologiczne, poszukujemy Senior Full-Stack Developera (Java) . Osoba na tym stanowisku dołączy do jednego z zespołów scrumowych i będzie mieć realny wpływ na rozwój aplikacji wykorzystywanej na co dzień przez tysiące użytkowników. To rola dla kogoś, kto chce łączyć solidny backend z nowoczesnym frontendem i pracować przy produkcie, który naprawdę żyje i rośnie. Zakres obowiązków: rozwój funkcjonalności aplikacji w modelu full-stack (ok. 80% backend / 20% frontend), udział w analizie, projektowaniu i planowaniu nowych rozwiązań, wdrażanie nowych funkcjonalności oraz optymalizacja i utrzymanie istniejących (75% rozwój, 15% utrzymanie, 10% spotkania scrumowe), praca z technologiami: Java, Spring, Hibernate, Angular, PostgreSQL, MongoDB, udział w migracji środowiska do Google Cloud Platform, przeprowadzanie code review oraz dbanie o jakość kodu, Współpraca w ramach jednego z zespołów scrumowych. Kompetencje, których szukamy minimum 5 lat doświadczenia w pracy z Java, bardzo dobra znajomość SQL, Spring i Hibernate, doświadczenie w pracy z Angularem, umiejętność pracy zespołowej i dobra komunikacja, znajomość języka angielskiego na poziomie B2, Doświadczenie w pracy w metodyce Agile. Mile widziane otwartość na rozwój technologiczny oraz holistyczne spojrzenie na tworzenie oprogramowania. Co oferuje Klient stabilne zatrudnienie i długofalową współpracę, formę zatrudnienia dopasowaną do Twoich preferencji (UoP / B2B), praca hydryda, zespół engineering spotyka się do drugi tydzień w biurze, czasami częściej kartę Multisport oraz prywatną opiekę medyczną, dofinansowanie posiłków i szkoleń, zajęcia z języka angielskiego, dużą samodzielność i realny wpływ na decyzje techniczne, elastyczne godziny pracy, możliwość zdobywania certyfikatów z nowoczesnych technologii, dostęp do platform rozwojowych, przyjazną, nieformalną atmosferę pracy oraz komfortowe środowisko biurowe, strefy relaksu i regularne inicjatywy integracyjne.