Java Developer (Flowable / BPM)

🏢 Summary: Oferta B2B dla doświadczonego Programisty Backend do rozwoju i utrzymania usług bankowych w architekturze mikroserwisowej. Rola obejmuje tworzenie API dla aplikacji mobilnej, integracje systemów, bezpieczeństwo, wydajność, CI/CD i monitoring. Praca hybrydowa: jeden dzień tygodniowo z biura w Warszawie, ze stawką 1150–1250 PLN/MD. 🗂️ Requirements: Minimum 5 lat komercyjnego doświadczenia z Java 8/11/17, Minimum 2 lata doświadczenia ze Spring Boot, Praktyczna znajomość Oracle, Elasticsearch i Kafka, Doświadczenie z Tomcat, Netty, Hazelcast i Ehcache, Znajomość ekosystemu Spring i mikroserwisów, Doświadczenie z Docker i Kubernetes, Znajomość PKI, JWT, podpisów cyfrowych oraz TLS/mTLS, Doświadczenie z Git/Gerrit, Maven, Jira, IntelliJ i CI/CD, Znajomość Prometheus, Grafana, Sentry i Loki 📃 Skills: Java, Spring, SpringBoot, Kafka, Oracle, Elasticsearch, Tomcat, Netty, Hazelcast, Ehcache, Docker, Kubernetes, Hibernate, Git, Gerrit, Maven, Jira, IntelliJ, Prometheus, Grafana, Sentry, Loki, PKI, JWT, TLS, mTLS 🏢 Description: Wynagrodzenie: 1150 - 1250 PLN/ MD B2B Model pracy: hybrydowy (1 dzień w tygodniu z biura w Warszawie) Dlaczego warto wybrać tę ofertę? Będziesz częścią projektu jednego z czołowych banków w Polsce Dołączysz do organizacji, która nastawiona jest na podążanie za nowymi technologiami pojawiającymi się na rynku Przed Tobą praca nad ambitnymi projektami o dużej skali , gdzie będziesz mieć przestrzeń do wykazania się W projekcie mile widziane są nowe, świeże podejście i kreatywność Społeczność JIT umili Ci czas podczas cyklicznych spotkań integracyjnych Zyskasz możliwość uczestniczenia w Jit communities i szkoleniach, aby dalej rozwijać swoje umiejętności Projekt Jako Programista Backend będziesz odpowiedzialny za rozwój i utrzymanie usług backendowych w środowisku bankowym. Do Twoich zadań należeć będzie projektowanie i implementacja mikroserwisów, integracja systemów, optymalizacja wydajności oraz zapewnienie wysokiego poziomu bezpieczeństwa i niezawodności rozwiązań wspierających kluczowe procesy biznesowe organizacji. Zakres obowiązków: Projektowanie, rozwój i utrzymanie aplikacji backendowych opartych o Java i Spring Boot Tworzenie oraz rozwój mikroserwisów i API wykorzystywanych przez aplikację mobilną Integracja systemów z wykorzystaniem Apache Kafka i Kafka Streams Współpraca przy wdrażaniu rozwiązań opartych o Docker i Kubernetes Dbałość o jakość kodu, testowanie oraz optymalizację wydajności aplikacji Współpraca z zespołami analitycznymi, biznesowymi i deweloperskimi Udział w procesach CI/CD oraz monitorowaniu środowisk produkcyjnych Implementacja i utrzymanie mechanizmów bezpieczeństwa zgodnych z wymaganiami bankowymi Wymagane kompetencje: Minimum 5 lat doświadczenia komercyjnego w programowaniu w Java 8/11/17 Minimum 2 lata doświadczenia z Spring Boot Praktyczna znajomość Oracle, Elasticsearch oraz Kafka Doświadczenie w pracy z Tomcat, Netty, Hazelcast i Ehcache Znajomość ekosystemu Spring oraz technologii wspierających budowę mikroserwisów Doświadczenie z Dockerem i Kubernetes Znajomość zagadnień bezpieczeństwa: PKI, JWT, podpisy cyfrowe, TLS/mTLS Doświadczenie w pracy z narzędziami Git/Gerrit, Maven, Jira, IntelliJ oraz procesami CI/CD Znajomość narzędzi monitoringu i observability, takich jak Prometheus, Grafana, Sentry i Loki Technologie z jakimi będziesz pracować Java 8/11/17 Spring Boot Spring Web Flux Kafka Oracle Elasticsearch Docker Kubernetes Hibernate Spring Security Git/Gerrit Maven Prometheus Grafana Sentry JWT, PKI, TLS/mTLS Klient – dlaczego warto wybrać akurat tego klienta z portfolio JIT? Nasz Klient jest jednym z czołowych banków w Polsce , charakteryzującym się imponującą historią oraz szerokim zakresem usług finansowych. Bank ten oferuje kompleksowe rozwiązania dostosowane do potrzeb klientów indywidualnych, firm i instytucji. Klient może pochwalić się osiągnięciami, takimi jak: pionierskie wprowadzenie pierwszej karty kredytowej w Polsce , uruchomienie biura maklerskiego oraz innowacyjne zastosowanie biometrii w praktyce bankowej . Jako pierwsi umożliwili swoim klientom zakładanie konta osobistego za pomocą selfie . Klient aktywnie angażuje się w różnorodne inicjatywy związane z nowoczesnymi technologiami, w tym sztuczną inteligencją, automatyzacją procesów, mobilnymi aplikacjami, biometrią twarzy i głosu, Big Data, nauką danych, a także architekturą i infrastrukturą systemów. O Jit Team The Human factor of IT - to nie tylko slogan, to filozofia. Fundamentem Jit Team są ludzie, dlatego to właśnie Was traktujemy priorytetowo. Zatrudniamy ponad 770 doświadczonych ekspertów , którym oferujemy rozwojowe projekty, szeroki zakres benefitów oraz autorski program rozwoju zawodowego. Wspólnie z klientami z całego świata tworzymy innowacyjne rozwiązania IT, dostarczane przez wysoko specjalizowane i efektywne zespoły. Za naszą maksymą stoją, także działania charytatywne i edukacyjne. Wspieramy szkoły, uczelnie i instytucje edukacyjne – prowadząc zajęcia, projekty edukacyjne, sponsorując wydarzenia czy przekazując sprzęt do nauki. Oferujemy staże umożliwiające rozpoczęcie kariery w IT. Wspieramy ratowników wodnych oraz szpitale, dostarczając potrzebne wyposażenie. Wspieramy też liczne organizacje charytatywne wspierające ubogich, dzieci i osoby starsze. Jesteśmy Polską firmą i dzielimy się tym, co osiągnęliśmy przez ponad 15 lat działalności. Wspierając rodzime inicjatywy, dbamy o obieg dobrej energii.

🏢 Summary: Senior Java Developer contract for a logistics project, focused on building secure, high-performance backend data-processing services in a microservices architecture. The role uses Java, Confluent Kafka/KStreams, MongoDB Atlas and PostgreSQL, with hybrid work from the Warsaw office 2–3 days per week. 🗂️ Requirements: 10+ years of Java development experience, Strong Confluent Kafka expertise, Strong KStreams expertise, MongoDB Atlas experience, PostgreSQL experience, English proficiency, Polish proficiency 📃 Skills: Java, Kafka, Confluent, KStreams, MongoDB, PostgreSQL, CI/CD, Microservices 🏢 Description: 🌍Work model: 2-3 days a week from the Warsaw office. 💰Rate: B2B - up to 190 zl/h. ⏰Start: ASAP/ 1 month. ⏳Project length: > 12 months + extensions. 📕Project language: English + Polish. 💼 Industry: Logistics. ⚙️Recruitment process: 2 interviews with the client. 🔍Workload: fulltime. Summary: The Senior Java Developer is primarily responsible for designing and developing backend applications while ensuring adherence to high standards of security, performance, and quality. This role focuses on leveraging extensive experience in Java and Kafka to build robust data processing solutions within a microservices architecture. Main Responsibilities: Building, testing, and deploying software using CI/CD pipelines. Creating microservices for data processing, database interactions, and data exposure. Implementing relevant architectural patterns for data handling and web services. Ensuring accurate logging and alert configurations for operational efficiency. Conducting comprehensive testing of software for various performance criteria. Integrating security features, including authentication and authorization controls. Participating in a developer guild to share best practices and technical knowledge. Key Requirements: 10+ years of relevant experience in Java development. Strong expertise in Kafka, particularly with Confluent Kafka and KStreams. Experience with MongoDB Atlas and PostgreSQL as database technologies. Nice to Have: Familiarity with authentication protocols such as OIDC, OAuth2, and SAML. Experience with containerization technologies like Docker. Knowledge of Kubernetes for container orchestration. Experience with the ELK stack for logging, monitoring, and alerting.

🏢 Summary: Oferta B2B dla doświadczonego Lidera Technicznego Java / Starszego Programisty Backend przy rozwoju i utrzymaniu kluczowych systemów ochrony zdrowia. Rola łączy projektowanie i rozwój backendu Java z technicznym prowadzeniem zespołu, dbaniem o architekturę, jakość kodu i wydajność aplikacji. Stawka wynosi do 170 PLN netto + VAT za godzinę. 🗂️ Requirements: Minimum 5 lat doświadczenia jako Backend Developer Java, Doświadczenie w zarządzaniu lub technicznym prowadzeniu zespołu programistów, Bardzo dobra znajomość Java 8 lub nowszej, Praktyczna znajomość Spring i Spring Boot, Doświadczenie z relacyjnymi bazami danych, Znajomość testów jednostkowych, Doświadczenie z narzędziami statycznej analizy kodu, Znajomość dobrych praktyk projektowania aplikacji backendowych 📃 Skills: Java, Spring, SpringBoot, PostgreSQL, Oracle, MSSQL, JUnit, Mockito, SonarQube, Agile, Scrum 🏢 Description: 📍 Lokalizacja: 100% zdalnie 💼 Forma współpracy: B2B 💰 Stawka: do 170 PLN/h netto + VAT Dołącz do projektu realizowanego dla sektora publicznego, którego celem jest rozwój i utrzymanie kluczowych systemów wspierających ochronę zdrowia w Polsce. Poszukujemy doświadczonego Lidera Technicznego Java / Starszego Programisty Backend, który poza rozwijaniem oprogramowania będzie wspierał zespół programistów, podejmował decyzje techniczne oraz dbał o jakość i architekturę tworzonych rozwiązań. Wymagania: Minimum 5 lat doświadczenia jako Backend Developer (Java). Doświadczenie w zarządzaniu lub technicznym prowadzeniu zespołu programistów. Bardzo dobra znajomość Java 8 lub nowszej. Praktyczna znajomość Spring oraz Spring Boot. Doświadczenie w pracy z relacyjnymi bazami danych (PostgreSQL, Oracle lub MS SQL). Znajomość testów jednostkowych z wykorzystaniem JUnit, Mockito lub podobnych narzędzi. Doświadczenie z narzędziami statycznej analizy kodu (np. SonarQube). Znajomość dobrych praktyk projektowania i tworzenia aplikacji backendowych. Obowiązki: Projektowanie, rozwój i utrzymanie aplikacji backendowych w technologii Java. Pełnienie roli lidera technicznego dla zespołu programistów. Współpraca z analitykami, architektami oraz interesariuszami biznesowymi. Dbanie o wysoką jakość kodu oraz stosowanie dobrych praktyk programistycznych. Udział w przeglądach kodu (Code Review) oraz mentoring członków zespołu. Współpraca z zespołem w metodyce Agile/Scrum. Projektowanie i rozwój architektury backendowej. Rozwiązywanie problemów technicznych oraz optymalizacja wydajności aplikacji. Oferujemy: Stawkę do 170 netto + VAT/h Przelew w dogodnej formie Krótki 14-dniowy termin płatności faktury Bogaty pakiet usług prywatnej opieki medycznej Dostęp do platformy kafeteryjnej MyBenefit (umożliwiającej zamawianie kart Multisport, kart przedpłaconych do Ikea, Zalando, Notino i wielu innych)

🏢 Summary: Fully remote Senior Java Backend Engineer role for Poland-based candidates, building high-performance, low-latency financial trading systems for a major North American bank. The position focuses on core Java development, distributed services, performance diagnosis, and long-term collaboration with capital-markets teams. 🗂️ Requirements: 6+ years of backend Java development experience, Current core Java programming expertise, Algorithms, complexity, and data structures knowledge, Java standard library data structures knowledge and internals, Distributed service-based applications with message queues experience, Production performance diagnosis and root-cause analysis skills, Strong analytical and problem-solving skills, Clear technical communication in English, Availability to work US Eastern business hours during the first two months, Polish residency and legal authorization to work in Poland, Successful background check 📃 Skills: Java, Algorithms, Complexity, DataStructures, DistributedSystems, MessageQueues, Debugging, Testing, PerformanceAnalysis, RootCauseAnalysis 🏢 Description: 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 N. American bank (for residents of Poland only) Openings on multiple teams in the capital markets division (prime brokerage, platform team) Part of the core team - this is not a legacy support role or an outsourced B team We’re hiring experienced backend engineers (6+ years) to join a major N. American bank — directly supporting the development of financial trading systems . This is not a legacy maintenance or support role — you’ll be part of the core product team , building highly-performant, low-latency systems used across the firm. Are you a passionate Java developer who thrives on solving complex problems in low-latency, high-throughput trading systems ? Join us and work on interesting financial system engineering problems. Why Join Us? Work on a large-scale, low-latency trading system processing millions of daily transactions. No Legacy: Join an actively developed system — the engineers who built it originally are still on the team. Collaborate with a world-class team of developers across North America and Europe. Enjoy the stability of a long-term, fully remote role that only a bank can offer. A successful candidate will be a very strong programmer with current Java development experience. They must also be curious, open-minded, and desire to learn new things. English proficiency is a must. This role is for developers who excel at programming core Java from the ground up, not just integrating frameworks or APIs. If you’re fascinated by understanding systems ‘under the hood,’ this role is for you. Successful candidates enjoy geeking out about data structures and debugging application performance issues. This is a fully remote backend Java development role for a developer in Poland . You will be working through a Polish company that will provide the support and administrative assistance to make you successful in the role. We are looking for people to join the team long-term. Different teams have different working hour arrangements. For all roles, to ensure efficient onboarding, you’ll work in sync with the American team during US Eastern business hours for the first two months . Working this way maximizes your time overlap for answering questions, which means you can learn quickly. That means working until 21:00 CET. After that, some teams offer more flexibility your schedule can shift closer to standard Polish business hours. Only open to residents of Poland. Polish citizens, as well as legal residents with permission to work in Poland are welcome. What we offer Work that matters in the financial domain: Work on a trading system at an established financial institution, processing millions of transactions daily. Professional growth: Collaborate with smart, highly capable developers in a supportive and challenging environment. Direct collaboration : You will work directly with the client team in North America and in Poland. 1st-tier work : This is not a technical support or legacy maintenance role. The system is functional and is actively being built and you will take part in updating it. The people who built the system are still part of the team. Long-term commitment: This is not a fixed-scope or fixed-term outsourcing role; we value people who want to grow and contribute long-term. Flexibility & remote work: Fully remote position based in Poland with increasing schedule flexibility post-onboarding. Competitive Compensation: Above-average pay and ample time-off options. Responsibilities Design and implement robust software solutions for the bank’s trading systems using core Java (versions vary from team to team, and include 8, 17 and 21). Understand, develop, and improve the subsystems used by other teams in the trading platform. Create thorough test cases to ensure software stability and reliability. Collaborate with operations teams regarding building new features and improving existing functionality. Support production issues, including root-cause analysis and diagnosis. Requirements Must have Strong understanding of programming concepts, including algorithms, complexity, and data structures. Good knowledge of the data structures in the Java standard library - both breadth and internals. Experience building distributed service-based applications based on message queues. Strong analytical and problem-solving skills, to effectively diagnose production performance issues measured in microseconds. Open mind, curiosity, and a strong desire to learn new technologies and business domains. Ability to clearly explain non-trivial systems and algorithms. Ability to follow and understand technical conversations. Know when and how to ask questions that speed up learning. Ability to align your working schedule to US Eastern business hours. Nice to have Experience with financial markets and trading systems. Knowledge of AWS systems. Experience with Spring boot (some teams). Experience with JVM tuning (some teams). Experience working remotely with North American firms. A computer science degree from a top Polish school. The recruitment process Submit your CV. Answer a few written questions and a short programming exercise which you can do at your own pace. Participate in a three-stage interview process: Discuss your experience and skills. Solve verbal algorithm problems (focus on clarity and understanding). Tackle live coding challenges (no trick questions). No take-home assignments – we respect your time. Successful candidates will need to pass a standard background check.

🏢 Summary: B2B contract for a Senior Software Engineer to develop and operate a JVM-based, event-driven platform remotely from Poland. The role provides end-to-end ownership of system design, delivery, production reliability, monitoring, and support, with a rate up to 140 zł/h net + VAT. 🗂️ Requirements: 5+ years of software engineering experience, End-to-end ownership of features and components, Java and Kotlin expertise, Event-driven systems experience, Distributed systems knowledge, Event-driven architecture and API gateway experience, PostgreSQL, data modelling, and query performance knowledge, Relational and non-relational database knowledge, Unit, integration, and end-to-end testing experience, Independent delivery, risk, sequencing, and dependency management, C4 model system design experience, DORA metrics, stability, SSDLC, velocity, and predictability familiarity, AI coding tools experience, Cloud platform familiarity, Docker and Kubernetes experience, Fluent Polish, Advanced English (B2/C1) 📃 Skills: Java, Kotlin, JVM, PostgreSQL, NoSQL, Docker, Kubernetes, C4, DORA, SSDLC, Claude, Codex, Cursor, Cloud 🏢 Description: Contract : B2B Rate : up to 140 zł/h net + VAT depending on skills and experience Location : Remote within Poland Start : ASAP Project : Development of a JVM-based, event-driven platform with end-to-end ownership of software design, delivery, and production reliability. Key Technologies/Areas Java, Kotlin, JVM Event-Driven and Distributed Systems PostgreSQL and NoSQL Docker, Kubernetes Cloud Platforms AI Coding Tools Project Overview We are looking for a Senior Software Engineer to join one of our client’s engineering teams. You will own features and components from refinement and system design through development, production deployment, monitoring, and post-release support. Responsibilities Own the end-to-end design and delivery of features and components. Create, maintain, and align system designs using the C4 model with the domain target architecture. Develop reliable, production-ready, and well-tested software using Java and Kotlin. Manage estimation, sequencing, delivery risks, and cross-team technical dependencies. Own monitoring, reliability, production support, and participation in on-call. Contribute to frontend development where required. Use AI coding tools as part of your daily workflow. Requirements 5+ years of professional software engineering experience , including proven ownership of features and components end to end. Solid foundation in the JVM , including Java and Kotlin . Production experience with event-driven systems. Good understanding of distributed systems, including idempotency, at-least-once vs exactly-once trade-offs, schema evolution, and partitioning. Experience with event-driven architecture, API gateways, and understanding when not to apply these patterns. Sound knowledge of relational and non-relational databases, including PostgreSQL , data modelling, and query performance. Proven experience delivering reliable software with unit, integration, and end-to-end testing. Ability to independently manage delivery, risks, sequencing, and cross-team dependencies. Experience owning system design at team scope using the C4 model. Familiarity with DORA metrics, stability, SSDLC compliance, velocity, and predictability. Experience using AI coding tools such as Claude Code, OpenAI Codex, opencode, Cursor, or similar. Familiarity with cloud service providers. Experience with Docker and Kubernetes . Fluency in Polish and advanced English (B2/C1) Nice to have Frontend experience with React, TypeScript, and Node.js. Hands-on production experience with Kafka. Experience with Microsoft Azure. Why join us? Rite NRG is a vibrant outsourcing technology company driven by the Right People. We are dedicated to empowering businesses through innovative software solutions. We focus on building strong partnerships and providing top-notch software solutions that drive real business growth. Our business model revolves around collaboration and delivering impactful results for our clients. Join us and be part of a team where great minds, Right Energy, and strong partnerships come together to shape the future of technology! Possibility of long-term cooperation on a full-time project engagement basis. Flexibility in organizing the provision of services, taking into account project requirements and agreed availability. Opportunity to contribute to technically advanced projects. Opportunity for international collaboration.

🏢 Summary: Senior Java Developer role focused on building and maintaining scalable backend services for digital banking platforms. The position combines Java development with ownership of backend testing, AI-assisted delivery practices, and collaboration in a cross-functional agile team. It offers a B2B contract, up to 150 PLN/h net + VAT, and hybrid work in Warsaw. 🗂️ Requirements: Backend development experience at Regular or Senior level, Java 21+ proficiency, REST API and microservices architecture experience, Spring Boot 3.4, Spring WebFlux, and Hibernate experience, Test automation experience with JUnit5, Cucumber, and WireMock, Git, Maven, Jenkins, Oracle DB, DB2, SQL, and Splunk knowledge, SOLID principles understanding, AI tools usage in software development, Fluent English 📃 Skills: Java, REST, Microservices, Spring, WebFlux, Hibernate, JUnit, Cucumber, WireMock, Git, Maven, Jenkins, Oracle, DB2, SQL, Splunk, SOLID, AI 🏢 Description: Senior Java Developer About our Client You will be working for a prominent player in the banking industry, helping shape the future of digital business banking across the Nordic region. The client builds and delivers innovative web and mobile banking solutions used by customers in Denmark, Finland, Sweden, and Norway, continuously evolving the next generation of scalable digital banking services. The Role & Expectations We are looking for a Senior Java Developer who embraces a blended capability role. Beyond standard development tasks, you will be expected to champion and drive backend testing within your agile team. You should be comfortable working in a modern, large-scale banking platform and proactively using AI-powered tools to optimize your daily workflow. What you will do Design, develop, test, and maintain backend services that power digital banking platforms. Drive backend testing activities (performance, unit, integration, and API testing) ensuring highly reliable and scalable solutions. Leverage AI-powered tools as a standard part of your daily development, testing, and delivery practices. Collaborate closely with business stakeholders to understand requirements and translate business needs into technical solutions. Contribute to the full product lifecycle—from technical design and implementation to continuous improvement and operational support. Work collaboratively within a cross-functional agile team based in a vibrant Warsaw hub. What we expect (Must-haves) Strong experience as a Backend Developer (Regular to Senior level). Solid proficiency in Java 21+ , REST APIs, and microservices architecture. Hands-on experience with Spring Boot 3.4 , Spring WebFlux, and Hibernate. Experience in test automation ( JUnit5, Cucumber, WireMock ). Working knowledge of Git, Maven, Jenkins, Oracle DB/DB2/SQL, and Splunk. Strong understanding of SOLID principles (knowledge of reactive programming is a major advantage). Mandatory experience in utilizing AI tools in software development. Fluent English (essential for daily communication in an international environment). Nice-to-haves Frontend development experience (JavaScript, TypeScript, Angular 2+). Familiarity with testing tools and frameworks like Playwright, qTest, and Gherkin. ISTQB Foundation certification. What is offered Salary: Up to 150 PLN/h net + VAT. Contract: B2B agreement Work model: Hybrid (3 days per week in the Warsaw office).

🏢 Summary: Senior Java Developer role focused on building and modernizing secure, scalable backend platforms and microservices for investment management products. The position offers hands-on architectural ownership, production support responsibilities, and collaboration across Agile engineering and business teams in a hybrid Krakow model. 🗂️ Requirements: 6+ years of commercial Java enterprise application development, Java 17+ proficiency, Advanced Spring and Spring Boot experience, REST API and backend service development experience, Microservices architecture knowledge, Object-oriented design, clean code, and design patterns, SQL query analysis and optimization, Docker and Kubernetes production experience, Kafka or event-streaming platform familiarity, CI/CD and DevOps practices experience, Secure coding and application security knowledge, Security scanning or vulnerability detection tools experience, Logging, monitoring, metrics, and distributed tracing familiarity, Business-critical production support and troubleshooting experience, Cross-functional collaboration with architects, QA, DevOps, and business teams, Very good English communication skills 📃 Skills: Java, Spring, SpringBoot, REST, SQL, Docker, Kubernetes, Kafka, CI/CD, DevOps, Microservices, Agile 🏢 Description: We are hiring on behalf of our client – a global financial services organization recognized for its premium service, deep domain expertise, and strong technology-driven approach. The company partners with clients, helping them solve complex challenges across investor services and capital markets. Their culture is built on collaboration, knowledge sharing, and empowering individuals to contribute beyond their immediate role. As a Senior Java Developer , you will design and develop core backend platforms and scalable microservices. You will contribute to new product development and modernization initiatives, influence architectural decisions, and work closely with engineering and business stakeholders throughout the software development lifecycle. This is a senior, hands-on engineering role with strong ownership expectations. You will help shape technical solutions, improve engineering practices, and ensure that business-critical systems remain secure, reliable, maintainable, and ready to scale. Key takeaways: Stack: Java 17+, Spring, Spring Boot, REST APIs, SQL, Docker, Kubernetes, Kafka, CI/CD Salary: 27 000 - 30 000 PLN gross on the Contract of Employment Working model : Hybrid - 3 days/week from the office (2 days per week for parents of children up to 4 years old) Location: ul. Klimeckiego, Krakow Recruitment process : A call with MOTIFE Recruiter (30 min) Technical interview with the Manager (1h) Technical interview with the Team (1h) Responsibilities: Backend Development Design, develop, and maintain enterprise-grade applications using Java 17+, Spring, and Spring Boot. Build scalable microservices and REST APIs supporting investment management products. Apply object-oriented design, clean code principles, and established software design patterns. Develop solutions that meet demanding performance, reliability, security, and maintainability standards. Architecture and Technical Excellence Contribute to architectural decisions and translate business requirements into effective technical solutions. Drive technical improvements across existing platforms and modernization initiatives. Participate in code reviews and promote consistent engineering standards across the team. Ensure solutions follow secure coding principles and software development lifecycle best practices. Cross-Functional Collaboration Partner with architects, QA engineers, DevOps specialists, and business stakeholders throughout the development lifecycle. Work within a cross-functional Agile team delivering web, backend, and mobile platform capabilities. Communicate technical decisions, risks, and dependencies clearly to technical and non-technical stakeholders. Support knowledge sharing and mentor other engineers where required. Delivery and Production Ownership Troubleshoot and resolve complex technical and production issues. Improve logging, monitoring, metrics, and distributed tracing across services. Enhance CI/CD pipelines to streamline software delivery and deployment. Drive continuous improvements in development processes, engineering tooling, and operational reliability. Requirements: Technical Expertise At least 6 years of hands-on commercial experience developing enterprise applications in Java. Strong practical knowledge of Java 17 or newer. Advanced experience with Spring, Spring Boot, REST APIs, and backend service development. Strong understanding of microservices architecture, object-oriented design, clean code, and software design patterns. Solid SQL skills, including practical experience with query analysis and optimization. Production experience with Docker and Kubernetes. Familiarity with messaging or event-streaming platforms such as Kafka. Experience working with CI/CD pipelines and modern DevOps practices. Security and Production Engineering Understanding of secure coding principles and common application security risks. Experience using security scanning or vulnerability detection tools. Familiarity with application logging, metrics, monitoring, and distributed tracing. Experience troubleshooting and supporting business-critical production systems. Collaboration and Mindset Proven ability to take ownership of technical solutions from design through production support. Strong problem-solving skills and the ability to resolve complex engineering challenges. Ability to collaborate effectively with architects, QA, DevOps, and business teams. Very good English communication skills. What we offer: Private medical care Life insurance Professional training and certification support Social fund benefits platform Stable employment with a long-term contract Apply now Join a senior engineering team building secure and scalable platforms for the investment management industry. Please apply via our careers page and submit your CV in English.