Senior Frontend Developer

🏢 Summary: B2B contract role for a banking project focused on payment systems integration and operations, requiring onsite presence in Warsaw twice a week. The engagement runs through the end of the year with possible extension and involves working with Polish banking payment standards and international messaging formats. 🗂️ Requirements: Experience in banking sector, Experience with SWIFT payments, Knowledge of ISO20022 standard, Experience with SORBNET system, Experience with ELIXIR system, English level B1 minimum, Availability for onsite work in Warsaw 2 days/week, Maximum 1 month notice period 📃 Skills: SWIFT, ISO20022, SORBNET, ELIXIR, Banking, Payments, English 🏢 Description: The client is one of Poland’s banks Key details: Location: 2 days/week from the Warsaw office Rate: 50–80 PLN/hour net + VAT Employment type: B2B contract Duration: through the end of the year + possible extensions Recruitment process: 1 or 2 stages English: B1 Luxmed, MultiSport, equipment provided by the client - Experience in the banking sector / with SWIFT, ISO20022, SORBNET, and ELIXIR payments - Polish team - Max. 1 month’s notice Hays Poland sp. z o.o. is an employment agency registered in a registry kept by Marshal of the Mazowieckie Voivodeship under the number 361.

🏢 Summary: B2B Project Manager role in an international pharmaceutical environment, leading automation and laboratory system implementation projects across Poland. The position focuses on managing end-to-end greenfield and modernization initiatives, including feasibility analysis, cost estimation, and integration of IT and laboratory systems. Work is delivered in Agile/Waterfall/Kanban with a mix of remote work and business travel. 🗂️ Requirements: Minimum 5 years of project management experience, Experience in medical or laboratory industry, Experience leading end-to-end greenfield projects, Documented use of project planning tools, Experience implementing IT or laboratory systems, Ability to manage multiple complex projects simultaneously, Experience with Agile, Waterfall or Kanban methodologies, English level B2+/C1, Polish language proficiency, Valid driver’s license and willingness to travel, Higher education degree 📃 Skills: Agile, Waterfall, Kanban, ProjectManagement, Automation, LaboratorySystems, ITPlatforms, CostEstimation, Budgeting, Scheduling, ProcessOptimization, StakeholderManagement 🏢 Description: The client is an international pharmaceutical company Key details: Location: 50/50 remote work/business trips within the Lublin province Rate: 100–120 PLN/hour net + VAT (travel expenses covered by the client) Employment type: B2B contract Duration: min. 12 months + extensions (planned employment for 3 years) Recruitment process: 2 stages (HR and technical) English: B2+/C1 (Polish is also required) Luxmed, MultiSport, equipment provided by the client Responsibilities: • Lead and manage strategic and operational projects for clients in line with company objectives • Collaborate with stakeholders to optimize business processes and improve customer service quality • Implementing new procedures, laboratory systems, and IT platforms while ensuring their seamless integration • Supporting sales and marketing teams in tenders and contributing to sales growth among clients • Support collaboration with internal teams and external partners to strengthen expertise and strategy • Work on several projects simultaneously; duration of a single project: 3 to 6 months • Work in Agile/Waterfall/Kanban (depending on the project) Projects related to assessing the feasibility of implementing automation in laboratories, e.g., evaluating the adaptability of facilities to the needs of automated laboratories, assessing the technical conditions of the premises, verifying utility connections, analyzing the existing building architecture, preparing cost estimates and assessing the costs/time required for modernization, preparing a work schedule and conducting training Profile: • Valid driver’s license and willingness to travel throughout Poland • 5 years of experience in project management, preferably in the medical or laboratory industry (business-oriented PM) • Knowledge of and documented experience using planning tools • College degree • Proactive attitude, strong analytical, organizational, and problem-solving skills • Strong interpersonal and communication skills with a customer-oriented approach (negotiations, budgeting, preparing and collecting bids, assigning responsibilities within the team, ensuring timeliness) • Proven success in managing complex projects and cross-team collaboration • Knowledge of hospital and laboratory organizational structures is a plus • Leading end-to-end (greenfield) projects • Collaboration with other project managers • SM certification is a plus About the Company A division of the company dedicated to developing innovative laboratory solutions. The Project Manager will play a key role in implementing high-quality projects, optimizing client workflows, and striving for operational excellence, positioning the company as a trusted partner in healthcare innovation. Hays Poland sp. z o.o. is an employment agency registered in a registry kept by Marshal of the Mazowieckie Voivodeship under the number 361

🏢 Summary: Long-term B2B contract for a Senior Full Stack Developer focused on backend development in .NET and system integrations within a media project. The role involves building and integrating APIs, middleware workflows, and SQL-based data solutions, with additional work on internal React tools and cloud environments. The position combines hands-on development, modernization, security implementation, and automated testing in a hybrid work model. 🗂️ Requirements: Minimum 5-6 years of experience in C# and .NET, Strong experience in API development and system integrations, Experience with middleware or iPaaS platforms, Experience working with distributed systems and cross-platform data flows, Strong knowledge of SQL and data transformation, Experience with cloud environments (AWS preferred), Ability to implement security mechanisms such as OAuth and JWT, Experience with automated testing frameworks, Ability to participate in code reviews and mentor junior developers, English proficiency at B2/C1 level 📃 Skills: C#, .NET, React, SQL, T-SQL, Workato, PowerAutomate, API, REST, OAuth, JWT, xUnit, NUnit, Jest, AWS, iPaaS, Middleware 🏢 Description: Hays IT Contracting is a cooperation based on B2B rules. We connect IT specialists with the most interesting, technological projects on the market. Join the group of 500 satisfied Contractors working for Hays’ clients! For our Client we are currently looking for Candidates for the position of: Senior Full Stack Developer (.NET, React, Middleware) Location: Warsaw Branch: media (an American company) Job type: B2B (with Hays Poland) Length: long-term Rate: 140-160 PLN/h net Start date: ASAP / 1 month Working hours: business hours, with occasional meetings during US working hours Working model: hybrid 2/3 (TBC) What will you do: 1. Core Development & Integration ·       Integration Workflows: Designing and implementing integration flows and automation tasks using iPaaS or workflow platforms (e.g., Workato, Power Automate) to support data exchange between business systems. ·       Backend Development: Developing and enhancing backend components and services in C# /.NET, focusing on application logic, data processing, and communication within the project scope. ·       Internal Tools Support: Implementing and maintaining internal tools, dashboards, or auxiliary interfaces in React to support data visibility and integration monitoring. ·       Database Engineering: Creating and optimizing MS SQL queries and stored procedures to support performance, data accuracy, and operational requirements in assigned technical tasks. 2. Technical Collaboration ·       Knowledge Exchange: Cooperating with other technical team members on problem solving and information sharing related to backend topics, API usage, or database practices as part of ongoing project work. ·       Code Review Participation: Participating in code reviews by providing technical feedback to ensure consistency, maintainability, and alignment with established project guidelines. ·       Modernization & Refactoring: Executing modernization tasks, including improving or refactoring existing components and codebases based on technical specifications and project requirements. 3. Security & Quality Assurance ·       Security Implementation: Applying established security mechanisms—such as OAuth, JWT, and data encryption—within integration and communication processes, according to project needs. ·       Automated Testing: Developing automated tests (e.g., xUnit, NUnit, Jest) to support service stability, detect changes in data or external systems, and improve overall solution reliability. What we expect from you: ·       Minimum 5-6 years of experience in C# /.NET programming ·       Some frontend exposure (React) beneficial but not core ·       Focus on APIs, system integrations, and middleware (e.g. Workato, Power Automate or similar) ·       Experience working across distributed systems and data flows between platforms ·       Comfortable with SQL and data transformation · Able to mentor junior developers and contribute to code quality and best practices ·       Experience with cloud environments (AWS preferred) ·       Knowledge of English on B2/C1 level What will you get: ·       Competitive salary ·       Standard benefits - preferential rates for LuxMed and Multisport packages ·       When you choose to work via Hays, you also get the opportunity to work for many of Hays' other leading clients in the future What will the recruitment process look like: 1.     Your CV will be verified by Hays Recruiter 2.     Recruiter will contact you by phone - a 15-minute conversation about the project and your experience 3.     Technical conversation with the client – 2 online meetings 4.     Offer 5.     Welcome to the project! Hays Poland sp. z o.o. jest agencją zatrudnienia zarejestrowaną w rejestrze prowadzonym przez Marszałka Województwa Mazowieckiego pod numerem 361.

🏢 Summary: B2B contract for a Senior Java Developer to design, implement, and modernize a large-scale Terminal Management System handling 300k+ payment terminals. The role focuses on developing and migrating distributed systems components using Spring Boot and WildFly, integrating multiple internal and external services, and improving security through vulnerability scanning and upgrades. 🗂️ Requirements: Very good knowledge of Java 8+, Strong object-oriented programming skills, Experience in designing, implementing, documenting and testing application components, Very good practical knowledge of Spring and Spring Boot, Very good practical knowledge of Hibernate/JPA and JEE, Experience with message queue systems, especially RabbitMQ, Knowledge of Maven, Git, GitLab, GitLab CI/CD, Jenkins, Nexus, Jira, Knowledge of relational databases, particularly Oracle, Practical knowledge of RESTful API design, Experience in system integration, Experience with distributed systems, Experience with JBoss/WildFly application servers, Knowledge of security scanning tools (e.g., Fortify, Sonatype), Availability to work 4 days per week from Warsaw office, Full availability in Polish time zone 📃 Skills: Java, Spring, SpringBoot, Hibernate, JPA, JEE, RabbitMQ, Maven, Git, GitLab, Jenkins, Nexus, Jira, Oracle, REST, JBoss, WildFly, Fortify, Sonatype, Hazelcast, GWT, GWTExt, SOAP, RMI 🏢 Description: The client is an American multinational company in the fintech industry Key details: Location: 4 days/week from the Warsaw office Rate: 130–180 PLN/hour net + VAT Job type: B2B contract Duration: 12 months + extensions Recruitment process: 2 stages English and Polish: B2/B2+ Luxmed, MultiSport, equipment provided by the client Job Responsibilities Design and implementation of IT solutions based on the presented analytical and technical documentation; Reviewing analytical documentation; Creating technical documentation; Technical upgrade for existing system; Working with legacy code Conducting regular scans in the application and removing vulnerabilities Job Requirements Fully available in the Polish time zone; Ability to work from the office in Warsaw (weekly: 4 days at office + 1 day WFH ); Very good knowledge of Java 8+ and object-oriented programming issues; Experience in independent design, implementation, documentation and testing of application components; Very good and p ractical knowledge of Spring, Spring Boot, Hibernate/JPA and JEE frameworks; Practical knowledge with message queue systems, particularly RabbitMQ; Practical knowledge of tools supporting the software development process: Maven, Git, Gitlab, Gitlab CI/CD, Jenkins, Nexus, Jira; Knowledge of relational databases, in particular Oracle; Practical knowledge of RESTful API design; Experience in system integration; Experience with distributed systems; Experience with application servers, JBoss/WildFly; Knowledge of scannnfg tools (Fortify, Sonatype..) Description of the area of involvement TMS (Terminal Management System) is used to manage a very large number of payment terminals (300k+), it gives users a uniform way to manage different terminals from different hardware vendors. TMS has a complex architecture, consisting of two components TMS (1 WildFly instance) providing GUI and implementing some business functions and RTMS (3 Spring-boot instances) implementing most of the business functionalities. A gradual migration from TMS to RTMS is being carried out. The system intensively uses Spring, Hibernate and RabbitMQ. The system has distributed transactions (different two-phase-commit, saga approaches) and distributed cache (Hazelcast). TMS is integrated with many internal and external systems (via REST, SOAP, RMI, direct database connections and database links). The GUI is written in GWT and GWTExt. Hays Poland sp. z o.o. is an employment agency registered in a registry kept by Marshal of the Mazowieckie Voivodeship under the number 361

🏢 Summary: Long-term B2B opportunity for a senior engineer to deliver production-ready code and shape system architecture in a microservices environment. The role combines hands-on Java and React development with architectural responsibilities in a global, collaborative setup. It focuses on high-frequency delivery and technical excellence within the financial sector. 🗂️ Requirements: Strong Java experience (latest versions), Strong React experience, Experience with microservices architecture, Experience delivering RESTful APIs, Experience with PostgreSQL, Proven high-frequency code delivery, Experience in banking or financial sector 📃 Skills: Java, React, Microservices, REST, PostgreSQL, Banking, Docker, Kubernetes 🏢 Description: Working mode : Hybrid - 6 days per month at the Warsaw office Contract type : B2B, long term cooperation Rate : 200 PLN/h Summary: This role focuses on hands-on development and system architecture, driving engineering culture, and enhancing business growth through technical expertise in a collaborative, global environment. Main Responsibilities: Deliver code to production and support system architecture aligned to microservices Understand business, engineering, and non-functional requirements Drive the desired engineering culture across teams Collaborate with a globally diverse team across regions Proactively remove impediments, assess risks, and communicate issues to program management Identify and eliminate process inefficiencies Key Requirements: Strong Java and React programming experience Experience in microservice architecture Background in the financial sector, particularly banking Proven capability of delivering code changes at high frequency Experience with RESTful API delivery Familiarity with PostgreSQL databases Recent Java experience, preferably with the latest versions Experience with ReactJS for UI application development Nice to Have: Knowledge of containers and orchestration technologies like Docker and Kubernetes. Other Details: This position offers the opportunity to work within a multi-regional team on innovative projects. Ideal for candidates seeking to leverage their development skills in a dynamic and evolving business context.

🏢 Summary: Long-term B2B hybrid role focused on hands-on Java and React development within a microservices architecture, contributing directly to production code and system design. The position emphasizes high-frequency delivery, REST API development, and collaboration in a global engineering environment. It combines technical leadership with active development in financial-sector projects. 🗂️ Requirements: Strong experience with Java, Strong experience with ReactJS, Experience with microservices architecture, Experience delivering RESTful APIs, Experience with PostgreSQL, Recent experience with modern Java versions, Ability to deliver code changes frequently, Background in banking or financial sector 📃 Skills: Java, ReactJS, Microservices, REST, PostgreSQL, Docker, Kubernetes 🏢 Description: Working mode: Hybrid - 6 days per month at the Kraków office Contract type: B2B, long term cooperation Rate: 200 PLN/h Summary: This role focuses on hands-on development and system architecture, driving engineering culture, and enhancing business growth through technical expertise in a collaborative, global environment. Main Responsibilities: Deliver code to production and support system architecture aligned to microservices Understand business, engineering, and non-functional requirements Drive the desired engineering culture across teams Collaborate with a globally diverse team across regions Proactively remove impediments, assess risks, and communicate issues to program management Identify and eliminate process inefficiencies Key Requirements: Strong Java and React programming experience Experience in microservice architecture Background in the financial sector, particularly banking Proven capability of delivering code changes at high frequency Experience with RESTful API delivery Familiarity with PostgreSQL databases Recent Java experience, preferably with the latest versions Experience with ReactJS for UI application development Nice to Have: Knowledge of containers and orchestration technologies like Docker and Kubernetes. Other Details: This position offers the opportunity to work within a multi-regional team on innovative projects. Ideal for candidates seeking to leverage their development skills in a dynamic and evolving business context.

🏢 Summary: Long-term B2B role in the banking sector focused on developing and modernizing a global payment platform using Java and React. The position involves building and migrating services to microservices architecture, supporting DevOps practices, and improving automation and processing efficiency in a hybrid work model. 🗂️ Requirements: Strong expertise in Java 17+, Experience with Kubernetes, Knowledge of Git, Proficiency in Unix-based systems and CLI, Experience with SQL and databases, Understanding of RESTful microservices and APIs, Knowledge of HTTP, Experience with JavaScript and React, Experience in DevOps delivery team, Knowledge of Spring or Spring Boot 📃 Skills: Java, React, Kubernetes, Git, Unix, SQL, Oracle, REST, HTTP, JavaScript, Spring, SpringBoot, Microservices, APIs, DevOps 🏢 Description: Project information: Industry: banking Location & Hybrid Model Kraków – 5-6 days per month onsite (Kraków office) Warsaw – 5-6 days per month onsite (Warsaw office) Outside Kraków/Warsaw – 3 days per month from the Warsaw or Kraków office Rate: We’re open to your suggestions Contract : B2B, no end date, long-term cooperation Summary: We are looking for skilled individuals for the payment platform, which allows our customers and clients to move funds across the globe, pay their suppliers, credit salaries, pay taxes directly to authorities and transfer money via multiple channels. The purpose of the role is to support project delivery through high-quality analysis and Agile design artefacts, effective stakeholder management, and deep business insight for the solution delivery team, all enabled by appropriate tools and aligned with DevOps working practices. Responsibilities: Building and supporting services, microservices, and applications (back-end and front-end) in Java 11/17/21, ReactJS, while maintaining and preserving standard products. Reduce costs and complexity by migrating from mainframe and IBM WebSphere to a modern approach with an integration layer such as APIs or microservices patterns. Reduce testing costs by adopting automated testing frameworks. Increasing Straight-Trough-Processing (STP) capabilities of services. Requirements: Strong expertise in Java 17+ is a must Kubernetes & Git knowledge Fluency in navigating Unix-based systems and command-line interfaces is essential. Database technologies and SQL - Oracle preferred (nice-to-have) A working understanding of RESTful microservices and APIs HTTP Web technologies and JavaScript - React Having worked in a DevOps delivery team A desirable understanding of application monitoring. Knowledge of Spring/Spring Boot

🏢 Summary: B2B contract for a Java Developer in a long-term banking project focused on modernizing an online banking payments system from legacy technology to a modern microservices architecture, supported by AI/LLM tools. The role involves system refactoring, staged migrations, and ensuring quality and security of AI-assisted development outputs. Hybrid or remote work with an initial 12-month contract. 🗂️ Requirements: Experience in banking systems, especially payments, Very good knowledge of Java, Very good knowledge of Spring Framework and Spring Boot, Experience with microservices architecture (design, integrations, observability, resilience), Experience with Oracle and PostgreSQL databases, Strong SQL skills (modeling and optimization), Documented experience in legacy code refactoring and system modernization, Knowledge of migration patterns (e.g., strangler pattern, staged migration), Experience in payments domain (transfers, standing orders, settlements, integrations), Practical experience with LLM and AI Agents in software development, Ability to validate and verify AI-generated code for correctness, security, and quality 📃 Skills: Java, Spring, SpringBoot, Microservices, Oracle, PostgreSQL, SQL, LLM, AI, REST, API 🏢 Description: Hays IT Contracting to współpraca oparta na zasadach B2B. Nasza firma dopasowuje specjalistów IT do najciekawszych projektów technologicznych na rynku. Dołącz do grona 500 zadowolonych Kontraktorów i pracuj dla Klientów Hays! Obecnie dla naszego Klienta poszukujemy Kandydatów na stanowisko: Java Developer Rodzaj umowy: kontrakt (B2B przez Hays Poland) Tryb pracy: Praca hybrydowa, 1 dzień z biura w Warszawie lub Krakowie lub Łodzi lub Wrocławiu / możliwa praca zdalna Czas trwania: współpraca długofalowa, pierwszy kontrakt na 12 miesięcy Start: ASAP Stawka: 140 - 160zł/h Opis projektu: Zespół projektowy odpowiedzialny za realizację przepisania (modernizacji) systemu bankowości internetowej z technologii typu legacy do nowej, zmodernizowanej architektury. Zakres modernizacji obejmuje obszar płatności. Realizacja projektu będzie wspierana przez Agentów AI / modele LLM, w związku z czym oczekujemy doświadczenia w pracy z tego typu narzędziami oraz wysokiej dojrzałości inżynierskiej w zakresie weryfikacji i walidacji rezultatów generowanych przez AI. Wymagania: Doświadczenie w bankowości (systemy płatności) Bardzo dobra znajomość: Java, Spring Framework (w tym Spring Boot) Doświadczenie w architekturze mikroserwisowej (projektowanie, integracje, obserwowalność, odporność) Bazy danych: Oracle oraz PostgreSQL (modelowanie, optymalizacja, praca z SQL) Udokumentowane doświadczenie w pracy z kodem legacy oraz modernizacji/przepisywaniu systemów (refaktoryzacja, strangler pattern, migracje etapowe, testy regresji) Doświadczenie w domenie: płatności (np. przelewy, zlecenia stałe, paczki, statusy, potwierdzenia, rozrachunek, integracje z systemami zewnętrznymi) Wymagania związane z AI/LLM: Praktyczne doświadczenie w wykorzystaniu LLM oraz Agentów AI w wytwarzaniu oprogramowania (np. generowanie kodu, testów, analiz, dokumentacji, migracji) Umiejętność krytycznej oceny rezultatów AI: weryfikacja poprawności, bezpieczeństwa, jakości, zgodności z wymaganiami i standardami Kompetencje miękkie do pracy w „AI-assisted development”: myślenie systemowe, krytyczne, nastawienie na jakość i szybkie uczenie, umiejętność współpracy i dzielenia się wiedzą Znajomość wzorców migracyjnych i modernizacyjnych (np. stopniowe wydzielanie domen, kontrakty API) Co otrzymasz: Długofalową współpracę z Klientem realizującym projekty dla największych graczy z sektora bankowego, ubezpieczeniowego, telco i nie tylko Możliwość pracy w elastycznych godzinach Błyskawiczny proces rekrutacyjny – jedno spotkanie, decyzja nawet w ciągu 1 dnia Standardowe benefity – preferencyjne stawki pakietów LuxMed i Multisport Decydując się na współpracę via Hays, otrzymujesz również możliwość pracy w przyszłości dla wielu innych wiodących klientów Hays Jak będzie wyglądał proces rekrutacyjny: 1.     Twoje CV trafi do weryfikacji przez Rekrutera Hays 2.     Rekruter skontaktuje się z Tobą telefonicznie – 15-minutowa rozmowa o projekcie i Twoim doświadczeniu 3.     Rozmowa techniczna z Klientem – 2 spotkania online (1h) 4.     Oferta 5.     Witamy w projekcie! Hays Poland sp. z o.o. jest agencją zatrudnienia zarejestrowaną w rejestrze prowadzonym przez Marszałka Województwa Mazowieckiego pod numerem 361

🏢 Summary: B2B contract for an experienced Frontend Developer to work 100% remotely on a long-term strategic technology project involving modern IT solutions, including generative AI. The role focuses on building high-quality frontend applications that support key business processes in an international Agile environment. 🗂️ Requirements: Minimum 5 years of experience as Frontend Developer, Minimum 5 years of commercial experience with React, Minimum 5 years of commercial experience with JavaScript, Experience working in Linux environment, Practical experience with Jira, Practical experience with GitLab, Practical experience with OpenShift, Experience with CI/CD processes, Knowledge of DevOps practices, Experience with unit testing and system testing, Experience working in Agile (Scrum) methodology 📃 Skills: React, JavaScript, Linux, Jira, GitLab, OpenShift, CI/CD, DevOps, Scrum, Agile, Testing 🏢 Description: Hays IT Contracting to współpraca oparta na zasadach B2B. Nasza firma dopasowuje specjalistów IT do najciekawszych projektów technologicznych na rynku. Dołącz do grona 500 zadowolonych Kontaktorów i pracuj dla Klientów Hays! Obecnie dla naszego Klienta poszukujemy osoby na stanowisko: Frontend Developer Lokalizacja: Zdalnie 100% Godziny pracy: standardowe Rodzaj umowy: B2B Stawka: 140 - 165 PLN/h net + vat Czas trwania projektu: współpraca długofalowa Start: ASAP O projekcie Dołącz do zespołu rozwijającego strategiczny projekt technologiczny z obszaru nowoczesnych rozwiązań IT, w tym generatywnej AI. Będziesz pracować nad tworzeniem wysokiej jakości oprogramowania wspierającego kluczowe procesy biznesowe, w dynamicznym i międzynarodowym środowisku. Twoja rola Jako Software Engineer będziesz odpowiedzialny/a za rozwój i dostarczanie nowoczesnych rozwiązań frontendowych, współpracując bezpośrednio z zespołami biznesowymi, developerami oraz ekspertami DevOps i Data Science. Zakres obowiązków Rozwijanie oprogramowania w metodyce Agile (Scrum) Implementacja funkcjonalności w oparciu o React i JavaScript Przeprowadzanie testów jednostkowych i systemowych Współpraca z biznesem w zakresie analizy i doprecyzowania wymagań Udział w procesach CI/CD oraz wdrożeniach (DevOps) Dbanie o wysoką jakość doświadczenia użytkownika (UX) Rozwiązywanie problemów produkcyjnych i optymalizacja aplikacji Wymagania Min. 5 lat doświadczenia na stanowisku Frontend Developera Bardzo dobra znajomość React i JavaScript (min 5 lat doświadczenia) Doświadczenie w pracy w środowisku Linux Praktyczna znajomość narzędzi: Jira, GitLab, OpenShift Znajomość procesów CI/CD i praktyk DevOps Umiejętność przeprowadzania testów (unit/system testing) Bardzo dobra znajomość języka angielskiego (min. B2+/C1) Wykształcenie wyższe lub doświadczenie równoważne Mile widziane Doświadczenie z danymi finansowymi (Market Data, Reference Data) Znajomość full-stack development Doświadczenie w projektach związanych z AI Kompetencje miękkie Umiejętność analitycznego myślenia i rozwiązywania problemów Samodzielność i inicjatywa Umiejętność pracy zespołowej (Scrum) Dobra komunikacja z interesariuszami biznesowymi Jak będzie wyglądał proces rekrutacji: Twoje CV zostanie zweryfikowane przez rekrutera Hays Rekruter skontaktuje się z Tobą telefonicznie – 15-minutowa rozmowa o projekcie i Twoim doświadczeniu Rozmowa techniczna z klientem Oferta Witamy w projekcie! Hays Poland sp. z o.o. jest agencją zatrudnienia zarejestrowaną w rejestrze prowadzonym przez Marszałka Województwa Mazowieckiego pod numerem 361

🏢 Summary: Long-term B2B contract for a Senior Java Developer to build and operate cloud-native microservices on OpenShift. The role combines backend development with DevOps responsibilities, including CI/CD automation, containerization, observability, and DevSecOps practices in a fully remote environment. 🗂️ Requirements: Strong experience with Java and Spring Boot, Hands-on experience with OpenShift, Practical knowledge of containerization, Experience building CI/CD pipelines with Tekton, Knowledge of Maven or Gradle, Experience with GitOps and Argo CD, Familiarity with observability tools, Understanding of DevSecOps practices, Scripting skills for automation, Experience troubleshooting JVM in containerized environments 📃 Skills: Java, Spring, OpenShift, Docker, S2I, Kafka, AMQ, Tekton, Maven, Gradle, ArgoCD, Prometheus, Grafana, Loki, EFK, Bash, PowerShell, Python, Helm, Kustomize, Trivy, Clair, Snyk, RBAC, JVM, GitOps 🏢 Description: Hays IT Contracting is a cooperation based on B2B rules. We connect IT specialists with the most interesting, technological projects on the market. Join the group of 500 satisfied Contractors working for Hays’ clients! For our Client we are currently looking for Candidates for the position of: Senior Java Developer Job type: B2B (with Hays Poland) Location: 100% remote Length: long term project Start date: ASAP / 1 month notice period is ok Rate: 170-180zł/h We’re looking for a Java Developer with strong DevOps skills and hands on experience running workloads on Red Hat OpenShift. You will build Java microservices, automate delivery pipelines, and help maintain reliable, secure, and observable cloud native platforms Key Responsibilities: ·       Develop and maintain Java microservices (Spring Boot) integrating with databases, APIs, and Kafka/AMQ. ·       Containerize applications (Docker/S2I) and optimize images for performance and security. ·       Deploy and operate services on OpenShift (deployments, routes, services, config/secrets, operators). ·       Build CI/CD using Tekton and manage GitOps flows via Argo CD. ·       Implement observability: logs, metrics, alerts (Prometheus, Grafana, Loki/EFK). ·       Automate tasks using Bash, PowerShell, Python, oc CLI, Helm/Kustomize. ·       Apply DevSecOps practices: image & dependency scanning (Trivy, Clair, Snyk), RBAC, secure coding. ·       Tune JVM and troubleshoot performance issues in containerized workloads. Must Have Skills ·       Strong Java & Spring Boot experience. ·       Practical experience with OpenShift and containerization. ·       CI/CD knowledge (Tekton, Maven/Gradle, GitOps/Argo CD). ·       Familiarity with observability tools and cloud native troubleshooting. ·       Understanding of DevSecOps and automation scripting. Nice to Have Java Certifications: ·       Oracle Certified Professional (OCP) – Java SE 11 or 17 ·       Oracle Certified Associate (OCA) – Java SE Cloud Native & Container Certifications: ·       Red Hat OpenShift Developer (DO288) ·       Red Hat Certified Specialist in OpenShift Administration (EX280) ·       Kubernetes certifications: CKA / CKAD / CKS What will you get: ·       Long-term cooperation with the client implementing projects for the largest players in the banking, insurance, telco and more sectors ·       Fast recruitment process - one meeting ·       Standard benefits - preferential rates for LuxMed and Multisport packages ·       When you choose to work via Hays, you also get the opportunity to work for many of Hays' other leading clients in the future What will the recruitment process look like: 1.     Your CV will be verified by Hays Recruiter 2.     Recruiter will contact you by phone - a 15-minute conversation about the project and your experience 3.     2 stages of interview with Client, via Teams 4.     Offer 5.     Welcome to the project! Hays Poland sp. z o.o. is an employment agency registered in a registry kept by Marshal of the Mazowieckie Voivodeship under the number 361.