Software Engineering - Java

🏢 Summary: Senior Backend Developer role focused on designing, developing and maintaining scalable backend systems and APIs within a global, technology-driven environment. The position involves shaping system architecture, ensuring quality and performance, and contributing to high-impact digital products supporting international business operations. Hybrid work model with strong influence on technical decisions and engineering standards. 🗂️ Requirements: Minimum 8 years of experience in Java development, Experience in designing distributed systems, Experience with microservices architecture, Practical experience in designing and developing REST APIs, Knowledge of relational or NoSQL databases, Experience with cloud environments, Experience with containerization, Strong knowledge of design patterns, Experience in testing and code review practices, Very good command of English 📃 Skills: Java, REST, PostgreSQL, MySQL, MongoDB, GCP, Docker, Kubernetes, Microservices, SQL, NoSQL 🏢 Description: Klient : Międzynarodowa firma działająca w branży agrobiznesowej i technologicznej, która rozwija zaawansowane rozwiązania cyfrowe wspierające globalne łańcuchy dostaw w obszarze żywności, pasz i paliw. Firma wykorzystuje dane oraz nowoczesne technologie, aby optymalizować procesy biznesowe na dużą skalę i budować przewagę konkurencyjną w dynamicznym, międzynarodowym środowisku. Dołącz do międzynarodowego zespołu technologicznego pracującego nad rozwojem nowoczesnych produktów cyfrowych, które mają realny wpływ na globalny biznes i procesy operacyjne. Będziesz odpowiadać za projektowanie, rozwój i utrzymanie wydajnych oraz skalowalnych systemów backendowych. 🛠 Stack technologiczny: Java, Microservices, REST API, Docker, Kubernetes, GCP, PostgreSQL, MySQL, MongoDB. Lokalizacja biura: Warszawa. Model pracy: hybrydowy (2 dni z biura, 3 dni zdalnie). Zakres obowiązków: Projektowanie oraz rozwój skalowalnych systemów backendowych i API Współodpowiedzialność za jakość, wydajność i bezpieczeństwo rozwiązań Współpraca z zespołami produktowymi, analitycznymi oraz innymi zespołami technologicznymi w środowisku międzynarodowym Identyfikowanie i rozwiązywanie złożonych problemów technicznych Przeglądy kodu oraz aktywne podnoszenie jakości wytwarzanego oprogramowania Mentoring i wsparcie mniej doświadczonych członków zespołu Wpływ na kierunek rozwoju architektury oraz dobór narzędzi i technologii Udział w podejmowaniu decyzji technologicznych oraz współtworzenie standardów inżynierskich Szukamy osoby, która: myśli systemowo i lubi rozwiązywać złożone problemy chce mieć wpływ na architekturę i jakość rozwiązań dobrze odnajduje się w środowisku międzynarodowym potrafi dzielić się wiedzą i wspierać innych wykazuje inicjatywę i poczucie odpowiedzialności za dostarczane rozwiązania Główne wymagania: Minimum 8 lat doświadczenia w tworzeniu oprogramowania w języku Java Doświadczenie w projektowaniu i budowie systemów rozproszonych oraz architektury mikroserwisowej Praktyczna znajomość projektowania i rozwijania REST API Znajomość baz danych (np. PostgreSQL, MySQL, MongoDB) Znajomość środowisk chmurowych (mile widziane doświadczenie z GCP ) Doświadczenie w pracy z konteneryzacją (Docker, Kubernetes) Ugruntowana znajomość wzorców projektowych oraz dobrych praktyk inżynierskich Doświadczenie w zapewnianiu jakości (testy, code review, dobre praktyki) Bardzo dobra znajomość języka angielskiego (codzienna praca w środowisku międzynarodowym) Mile widziane: Doświadczenie z Java 21+ Doświadczenie w pracy z innymi językami (np. .NET, Python, Node.js) Doświadczenie w pracy z systemami o dużej skali i wysokiej dostępności Firma oferuje: Stabilną, długofalową współpracę na podstawie umowy o prace (KUP) Udział w projektach o globalnym zasięgu i realnym wpływie na biznes Pracę w doświadczonym, międzynarodowym zespole Możliwość wpływu na architekturę i standardy technologiczne Możliwość rozwoju technicznego i mentoringowego Kulturę organizacyjną oparta na jakości, współpracy i ciągłym doskonaleniu Pracę w modelu hybrydowym (2 dni z biura, 3 dni zdalnie) Elastyczne godziny pracy Atrakcyjny pakiet benefitów (prywatna opieka medyczna, karta Multisport, ubezpieczenie na życie)

🏢 Summary: Junior Backend Java Developer role focused on building and maintaining backend features for a large-scale, customer-facing application in a cloud-oriented environment. The position involves developing, integrating, and optimizing services, ensuring high code quality, and supporting system enhancements using modern development tools and practices. The role includes working with RESTful services, databases, and distributed systems within a collaborative engineering team. 🗂️ Requirements: Hands-on experience with Java 8, Java 11 or Kotlin, Working knowledge of SQL databases, Basic knowledge of HTML and CSS, Familiarity with JavaScript, Understanding of client-server architecture, Knowledge of HTTP and RESTful APIs, Knowledge of dependency injection, Experience with API integration, Strong understanding of object-oriented programming, Experience developing business applications with data storage and integration, Experience integrating third-party software solutions, Understanding of data modeling and system integration, Knowledge of unit testing 📃 Skills: Java, Kotlin, SQL, HTML, CSS, JavaScript, HTTP, REST, OOP, API, JUnit 🏢 Description: Are you a passionate Junior Backend Java Developer eager to make an impact? Join EPAM’s dynamic engineering team, where you’ll help create, maintain, and enhance the backend of a large-scale application for a global client in a fast-paced, collaborative environment. You’ll work with modern technologies and contribute to innovative solutions that drive business value for our client’s digital ecosystem. This role offers a hybrid model, with 3 days per week working from the client's office in Kraków, Poland. Ready to launch your career in cloud engineering? Apply now and join our global team! Responsibilities Develop and maintain backend features for a customer-facing application, ensuring seamless integration with multiple service providers Design, implement, and support software patches and new features Write, review, and maintain technical documentation, including design and development artifacts Create applications using standard and cloud-based development tools Test, debug, and update programs to ensure high quality and performance Analyze, review, and modify code to improve efficiency and meet evolving requirements Investigate, document, and resolve technical issues Collaborate with internal teams to define and implement solutions that enhance the provider and customer experience Participate in code refactoring, technical debt reduction, and recommend improvements with a product mindset Maintain the highest standards of development practices, including technical design, solution development, system configuration, test documentation, and clean, modular code Requirements Hands-on experience with Java 8, Java 11, or Kotlin Working knowledge of SQL databases Basic understanding of HTML and CSS Familiarity with JavaScript, especially for debugging client-side request-response flows Experience with client-server architecture, HTTP, and RESTful APIs Knowledge of dependency injection, services, and API integration Strong technical problem-solving skills Solid foundation in object-oriented programming Experience developing business applications, including data storage and application integration Experience implementing, configuring, and integrating third-party software solutions Understanding of information management, data modeling, system integration, and development methodologies (including unit testing) Advanced written and verbal communication skills in English Quick learner with a proactive attitude Nice to have Experience with protocol buffers and gRPC Familiarity with all phases of the Software Development Life Cycle (analyze, design, build, test, implement, support) Experience working on Linux environments We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview. We will reach out to selected candidates exclusively.

🏢 Summary: Junior Backend Java Developer role focused on developing and maintaining backend features for a large-scale, customer-facing application in a cloud-oriented environment. The position involves building, integrating, and optimizing services using modern backend and cloud technologies while ensuring high code quality and performance. It offers hands-on experience with enterprise systems and collaboration in an international engineering team. 🗂️ Requirements: Hands-on experience with Java 8, Java 11, or Kotlin, Working knowledge of SQL databases, Basic understanding of HTML and CSS, Familiarity with JavaScript for debugging purposes, Knowledge of client-server architecture, HTTP, and RESTful APIs, Understanding of dependency injection and API integration, Strong object-oriented programming foundation, Experience developing business applications with data storage and integration, Experience integrating third-party software solutions, Understanding of data modeling, system integration, and unit testing, Advanced English communication skills 📃 Skills: Java, Kotlin, SQL, HTML, CSS, JavaScript, HTTP, REST, OOP, Linux 🏢 Description: Are you a passionate Junior Backend Java Developer eager to make an impact? Join EPAM’s dynamic engineering team, where you’ll help create, maintain, and enhance the backend of a large-scale application for a global client in a fast-paced, collaborative environment. You’ll work with modern technologies and contribute to innovative solutions that drive business value for our client’s digital ecosystem. This role offers a hybrid model, with 3 days per week working from the client's office in Kraków, Poland. Ready to launch your career in cloud engineering? Apply now and join our global team! Responsibilities Develop and maintain backend features for a customer-facing application, ensuring seamless integration with multiple service providers Design, implement, and support software patches and new features Write, review, and maintain technical documentation, including design and development artifacts Create applications using standard and cloud-based development tools Test, debug, and update programs to ensure high quality and performance Analyze, review, and modify code to improve efficiency and meet evolving requirements Investigate, document, and resolve technical issues Collaborate with internal teams to define and implement solutions that enhance the provider and customer experience Participate in code refactoring, technical debt reduction, and recommend improvements with a product mindset Maintain the highest standards of development practices, including technical design, solution development, system configuration, test documentation, and clean, modular code Requirements Hands-on experience with Java 8, Java 11, or Kotlin Working knowledge of SQL databases Basic understanding of HTML and CSS Familiarity with JavaScript, especially for debugging client-side request-response flows Experience with client-server architecture, HTTP, and RESTful APIs Knowledge of dependency injection, services, and API integration Strong technical problem-solving skills Solid foundation in object-oriented programming Experience developing business applications, including data storage and application integration Experience implementing, configuring, and integrating third-party software solutions Understanding of information management, data modeling, system integration, and development methodologies (including unit testing) Advanced written and verbal communication skills in English Quick learner with a proactive attitude Nice to have Experience with protocol buffers and gRPC Familiarity with all phases of the Software Development Life Cycle (analyze, design, build, test, implement, support) Experience working on Linux environments We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview. We will reach out to selected candidates exclusively.

🏢 Summary: Senior Backend Engineer role focused on designing and developing scalable, reliable backend services using Java. The position involves working in a cross-functional team to build high-performance systems, improve architecture, and support CI/CD and production environments. 🗂️ Requirements: 5+ years Backend Engineering experience, Strong Java proficiency, Solid knowledge of databases and SQL, Experience with RESTful APIs, Experience with microservices architecture, Experience with high-load systems, Experience with Docker and Kubernetes, Experience with AWS or GCP, Knowledge of CI/CD pipelines, Understanding of Agile practices 📃 Skills: Java, SQL, REST, Microservices, Docker, Kubernetes, AWS, GCP, CI/CD, Golang, Python 🏢 Description: We are looking for a Senior Backend Engineer with strong Java experience to help us design and develop scalable solutions. You will work in a cross-functional team, building reliable services and contributing to the continuous improvement of our systems. This role is ideal for someone who enjoys solving complex problems and driving technical excellence. 💼 Responsibilities: Design, develop, and maintain backend features and services. Collaborate with teams to define requirements and integrate systems. Ensure performance, scalability, and reliability of applications. Contribute to CI/CD processes and support production systems. Write clear documentation and share knowledge within the team. ✅ Requirements: 5+ years of experience as a Backend Engineer, with strong Java skills (Golang/Python is a plus). Solid understanding of databases and SQL. Experience with RESTful API design, microservices, and high-load systems. Familiarity with Docker, Kubernetes, and cloud environments (AWS/GCP). Knowledge of CI/CD pipelines and Agile practices. Strong problem-solving and communication skills. 🎁 We offer: Stable employment in a fast-growing company. Flexible and remote-friendly working model. Health and wellbeing benefits. Learning and development opportunities. Modern equipment and comfortable work environment.

🏢 Summary: Hybrid Backend Developer role focused on designing and implementing Java-based microservices, integrating databases and external systems, and modeling BPMN/DMN processes. The position involves building secure REST APIs, writing automated tests, handling CI/CD pipelines, and collaborating with DevOps in a microservices environment. 🗂️ Requirements: Very good knowledge of Java (JVM, concurrency, optimization, Clean Code), Experience with Spring Boot (microservices, Security, Data, integrations), Knowledge of Quarkus (native build, extensions configuration), Practical experience with Docker and docker-compose, Experience with GitLab CI/CD pipelines and automation, Knowledge of PostgreSQL, MySQL, MongoDB, Oracle, Experience with unit and integration testing, Ability to design and secure REST API and create OpenAPI documentation, Knowledge of Camunda or Kogito and BPMN/DMN, Knowledge of application security and access control mechanisms, Ability to create technical documentation in Markdown, Experience with AI tools supporting development process 📃 Skills: Java, JVM, Spring, Quarkus, Docker, GitLab, CI/CD, PostgreSQL, MySQL, MongoDB, Oracle, JUnit, Mockito, REST, OpenAPI, Camunda, Kogito, BPMN, DMN, OAuth2, OpenID, Keycloak, Markdown 🏢 Description: Jako firma rekrutacyjna jesteśmy świadomi, że każdy solidny biznes napędzają ludzie z odpowiednio dopasowanymi kompetencjami. Nasz styl zarządzania i partnerskie podejście pozwalają nam na elastyczne dostosowanie się do Twoich potrzeb i zapewniają pełne wsparcie podczas współpracy. W związku z ciągłym rozwojem i dużą liczbą projektów rekrutacyjnych, jakie prowadzimy dla naszych Partnerów, szukamy osoby na stanowisko: Backend Developer Praca hybrydowa - 2x w tygodniu praca z biura Zakres obowiązków: Projektowanie i implementacja usług backendowych Integracja z bazami danych i systemami zewnętrznymi Tworzenie i utrzymywanie dokumentacji technicznej (w tym z użyciem Markdown) Udział w analizach i projektowaniu rozwiązań (współpraca z analitykami i architektami) Modelowanie i implementacja procesów BPMN/DMN (Camunda/Kogito) Tworzenie testów jednostkowych i integracyjnych Migracje danych Współpraca z zespołem DevOps Dbanie o bezpieczeństwo i jakość kodu, udział w code review Rozwiązywanie zgłoszeń użytkowników systemów (użycie ITSM Remedy, Jira): analiza zgłoszeń, analiza logów, przygotowywanie poprawek na poziomie kodu i DB Wymagania: Bardzo dobra znajomość Java (JVM, współbieżność, optymalizacja, Clean Code) Doświadczenie w Spring Boot (mikroserwisy, Spring Security, Spring Data, integracje) Znajomość Quarkus (native build, konfiguracja rozszerzeń) Praktyczna znajomość Docker oraz docker-compose Doświadczenie w CI/CD GitLab (pipeline'y, automatyzacja buildów, testów i deploymentów) Znajomość baz danych: PostgreSQL, MySQL, MongoDB, Oracle Doświadczenie w testach jednostkowych (JUnit, Mockito) Umiejętność projektowania i zabezpieczania REST API oraz tworzenia dokumentacji OpenAPI Znajomość BPMS (Camunda, Kogito), BPMN/DMN oraz integracji z mikroserwisami Znajomość zagadnień bezpieczeństwa aplikacji i kontroli dostępu (OAuth2, OpenID, Keycloak) Umiejętność tworzenia dokumentacji technicznej w Markdown Wykorzystanie narzędzi AI w procesie developmentu (generowanie kodu, testów, analiza błędów, refaktoryzacja) Oferujemy: Prywatną opiekę medyczną Dofinansowanie karty sportowej Szkolenia językowe Stałe wsparcie konsultanta Program rekomendacji pracowników

🏢 Summary: Long-term hybrid opportunity for a Senior Java Developer to build and maintain backend services for large-scale gaming and lottery platforms using Java and Spring technologies. The role involves developing scalable microservices, database integration, performance optimization, and collaboration within Agile international teams. 🗂️ Requirements: Strong proficiency in Java 8+, Experience with Spring, Experience with Spring Boot, Experience with RESTful APIs, Experience with microservices architecture, Experience with MySQL or Oracle Database, Knowledge of Maven or Gradle, Experience with Git, Knowledge of Hibernate or JPA, Ability to work in English-speaking Agile teams, Availability for hybrid work in Lisbon, Availability for international travel 📃 Skills: Java, Spring, SpringBoot, REST, Microservices, MySQL, Oracle, Maven, Gradle, Git, Hibernate, JPA, JUnit, Docker, SQL, Eclipse, IntelliJ, Scala 🏢 Description: Location: Lisbon Model: Hybrid - 2x times a week at Lisbon’s office | Availability for international travel Language: English About the Role We are seeking a highly skilled Senior Java Developer to join our Backend Engineering team. This role involves designing, developing, and maintaining backend services that support large-scale gaming and lottery platforms. You will integrate into a team of 8 consultants working on a pivotal project, contributing to new features, improvements, and ongoing system enhancements. This is a long-term engagement (12+ months), providing the opportunity to work on high-impact, mission-critical backend systems utilizing modern Java and Spring technologies. Key Responsibilities Design, develop, and maintain backend services using Java and Spring/Spring Boot frameworks. Implement high-quality, scalable code following best engineering practices. Contribute to backend architecture, design patterns, and technical decision-making. Participate in code reviews, debugging, and performance optimization. Collaborate closely with cross-functional teams to support new features and ongoing enhancements. Work on database integration using MySQL or Oracle , including writing efficient queries and troubleshooting issues. Ensure code quality and reliability through unit testing (JUnit) and CI/CD pipelines. Participate in Agile ceremonies and contribute to sprint planning and estimation. Provide technical knowledge sharing within the team and support less experienced developers when needed. Must-Have Skills Strong proficiency in Java (Java 8+). Solid experience with Spring and Spring Boot . Hands-on experience with RESTful APIs and microservices architecture. Experience using relational databases (at least one of the following): MySQL Oracle Database Familiarity with Maven or Gradle build tools. Experience with version control using Git. Knowledge of Hibernate, JPA, or equivalent ORM technologies. Ability to work in English-speaking agile teams. Nice-to-Have Skills Knowledge of Docker or containerized services. Experience with SQL performance optimization . Familiarity with Eclipse or IntelliJ IDEA. Experience working in large enterprise environments. Experience with additional JVM-based languages (e.g., Scala) is a plus. Soft Skills Strong problem-solving and analytical mindset. Excellent communication and teamwork in an international environment. Ability to work independently and deliver high-quality work under minimal supervision. Adaptability and willingness to learn new technologies as required by the project.

🏢 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: Senior Java Developer Design and develop core backend platforms and scalable microservices. 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. Shape technical solutions, improve engineering practices, and ensure business-critical systems remain secure, reliable, maintainable, and ready to scale. Quick Facts • Stack: Java 17+, Spring, Spring Boot, REST APIs, SQL, Docker, Kubernetes, Kafka, CI/CD • Salary: 27,000–30,000 PLN gross on a Contract of Employment • Working model: Hybrid — 3 days per week from the office; 2 days per week for parents of children up to 4 years old • Recruitment process: 30-minute recruiter call; 1-hour technical interview with the manager; 1-hour technical interview with the team 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 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 Join a senior engineering team building secure and scalable platforms for the investment management industry. Submit your CV in English.

🏢 Summary: Backend-focused software engineering role responsible for designing and implementing scalable, high-performance Java applications. The position involves enhancing system architecture, performance, and resilience while developing new features and maintaining backend services. You will work in an Agile team environment, emphasizing clean code, testing, and database optimization. 🗂️ Requirements: 5+ years backend software development experience, Strong knowledge of core Java and JDK, Experience designing high-performance multithreaded systems, Solid understanding of software architecture and design patterns, Experience writing automated tests with JUnit, Advanced debugging and performance profiling skills, Strong knowledge of relational databases, Experience with PostgreSQL, Experience with Hibernate or JPA, Ability to work in Agile environment 📃 Skills: Java, JDK, JUnit, PostgreSQL, Hibernate, JPA, SQL, JAX-RS, Spring, Agile, Multithreading 🏢 Description: You will join a high-performing team of software engineers, with the ability to work on the backend or full stack, but primarily working on the backend, and taking responsibility for implementing a range of new application features, as well as improving the architecture, performance, scalability, and resilience of the existing product. Responsibilities Design and implement clean, modular, scalable, and testable code for the Java backend. Conducting performance analysis and profiling for backend systems and databases, ensuring the system’s scalability and high performance. Apply advanced testing and debugging methods to resolve complex software issues. Work collaboratively with local and distributed teams in an Agile environment to continuously enhance product functionality. Required skills and qualifications 5+ years of hands-on backend software development, with an in-depth knowledge of core Java/JDK. Solid understanding of software architecture, design patterns, and core software engineering principles. (Experience designing and implementing high-performance, multithreaded, state-driven systems. Proficiency in creating meaningful automated tests (we use JUnit) and applying advanced testing and debugging techniques. In-depth knowledge of relational databases (we use Postgres) and ORM technologies such as Hibernate/JPA. Strong communication skills with the ability to effectively interface with stakeholders. Excellent problem-solving skills with a strong capacity for independent work. Ability to work both independently and collaboratively as part of a team in an Agile environment. Communicative English Preferred skills and qualifications Bachelor's or Master's degree in Computer Science, Engineering, or a related subject. Experience developing REST APIs using JAX-RS, Spring, or similar technologies. 2+ years of experience with Angular or similar modern frontend frameworks. Experience with E2E testing frameworks such as Playwright or Cypress. Mentorship, coaching, or leadership experience or demonstrable aptitude. In return for your expertise, we’ll support you in this new challenge with coaching & development every step of the way. Also, to reward your work, you’ll get the following: Contract of Employment (UoP) Private medical coverage, Multisport Life insurance (two annual incomes), Employee Stock Purchase Plan – 15% discount for buying Motorola’s Stock units, Employee Pension Plan – 3,5 % of the month’s salary gross, which goes to the retirement account IP Tax Relief (up to 80%) Yearly salary increase (depends on individual performance) Yearly bonus (depends on company performance) Flexible working hours (usually the day starts between 7-10), 8 hours working day (30 minutes lunch break included). Hybrid work mode

🏢 Summary: Backend-focused Java Engineer role responsible for designing and implementing scalable, high-performance application features while improving architecture, resilience, and system scalability. The position involves performance analysis, advanced testing, and database optimization within an Agile environment. You will primarily work on the Java backend, contributing to clean, modular, and testable code. 🗂️ Requirements: 5+ years backend development experience, Strong knowledge of core Java/JDK, Experience with high-performance multithreaded systems, Solid understanding of software architecture and design patterns, Experience writing automated tests with JUnit, Advanced testing and debugging skills, Experience with relational databases, Knowledge of PostgreSQL, Experience with ORM frameworks, Knowledge of Hibernate or JPA, Experience with backend performance analysis and profiling 📃 Skills: Java, JDK, JUnit, PostgreSQL, Hibernate, JPA, SQL, Multithreading, REST, JAX-RS, Spring, Angular, Playwright, Cypress, Agile 🏢 Description: You will join a high-performing team of software engineers, with the ability to work on the backend or full stack, but primarily working on the backend, and taking responsibility for implementing a range of new application features, as well as improving the architecture, performance, scalability, and resilience of the existing product. Responsibilities Design and implement clean, modular, scalable, and testable code for the Java backend. Conducting performance analysis and profiling for backend systems and databases, ensuring the system’s scalability and high performance. Apply advanced testing and debugging methods to resolve complex software issues. Work collaboratively with local and distributed teams in an Agile environment to continuously enhance product functionality. Required skills and qualifications 5+ years of hands-on backend software development, with an in-depth knowledge of core Java/JDK. Solid understanding of software architecture, design patterns, and core software engineering principles. (Experience designing and implementing high-performance, multithreaded, state-driven systems. Proficiency in creating meaningful automated tests (we use JUnit) and applying advanced testing and debugging techniques. In-depth knowledge of relational databases (we use Postgres) and ORM technologies such as Hibernate/JPA. Strong communication skills with the ability to effectively interface with stakeholders. Excellent problem-solving skills with a strong capacity for independent work. Ability to work both independently and collaboratively as part of a team in an Agile environment. Communicative English Preferred skills and qualifications Bachelor's or Master's degree in Computer Science, Engineering, or a related subject. Experience developing REST APIs using JAX-RS, Spring, or similar technologies. 2+ years of experience with Angular or similar modern frontend frameworks. Experience with E2E testing frameworks such as Playwright or Cypress. Mentorship, coaching, or leadership experience or demonstrable aptitude. In return for your expertise, we’ll support you in this new challenge with coaching & development every step of the way. Also, to reward your work, you’ll get the following: Contract of Employment (UoP) Private medical coverage, Multisport Life insurance (two annual incomes), Employee Stock Purchase Plan – 15% discount for buying Motorola’s Stock units, Employee Pension Plan – 3,5 % of the month’s salary gross, which goes to the retirement account IP Tax Relief (up to 80%) Yearly salary increase (depends on individual performance) Yearly bonus (depends on company performance) Flexible working hours (usually the day starts between 7-10), 8 hours working day (30 minutes lunch break included). Hybrid work mode

🏢 Summary: Senior Tech Lead Java consulting role focused on designing and leading scalable backend development for gaming and digital platform services in a hybrid Lisbon setup with occasional travel to the UK. The position combines hands-on Java engineering, architecture ownership, team leadership, and collaboration across distributed international teams. 🗂️ Requirements: 8+ years of Backend Java development experience, Strong expertise in Java, Strong expertise in Spring, Strong expertise in Spring Boot, Strong expertise in Hibernate, Strong expertise in JPA, Experience with REST APIs, Experience with Oracle databases, Experience with MySQL databases, Experience designing scalable backend systems, Experience with CI/CD tools, Experience with Git, Previous technical leadership or senior developer experience, Knowledge of software architecture and design patterns, Fluent English, Ability to work in hybrid model in Lisbon, Availability for periodic travel to the UK 📃 Skills: Java, Spring, SpringBoot, Hibernate, JPA, REST, SQL, Oracle, MySQL, Git, Jenkins, Azure, AWS, Scala, Docker, Kubernetes, Scrum 🏢 Description: Location: Lisbon Model: Hybrid - 2 times a week at Lisbon’s office | Availability for monthly travel to Watford Duration: 12+ months Languages: English (mandatory) Engagement: Full-time consulting Seniority: Tech Lead / Senior Java Engineer Industry: Gaming / Lottery / Digital Platforms About the Role We are seeking an experienced Tech Lead – Java to join our engineering team. This role requires a strong technical leader capable of driving architectural decisions, mentoring developers, ensuring code quality, and contributing hands-on to backend development using modern Java frameworks. The Tech Lead will collaborate with Product Owners, Architects, Senior Developers, and QA teams to design, build, and maintain highly scalable and reliable backend services. Main Responsibilities Technical Leadership Lead and mentor a team of Java developers across multiple workstreams. Provide technical guidance, code review, and best-practice enforcement (coding standards, testing, architecture). Coordinate with solution architects to ensure alignment on system design. Drive technical decision-making and ensure platform scalability and maintainability. Software Design & Development Lead the design of backend components in Java , Spring , Spring Boot , Hibernate/JPA . Develop new modules, APIs, and integrations in a large-scale distributed environment. Ensure the implementation of robust and efficient solutions aligned with business needs. Maintain and improve existing features, ensuring optimal performance. Architecture & Integration Translate functional requirements into technical specifications. Oversee integration with Oracle and MySQL databases. Design RESTful services following best security and performance practices. Ensure compatibility with frontend, middleware, and third-party services. Quality & Delivery Ensure high quality through automated tests, CI/CD, and code reviews. Collaborate with QA to guarantee full traceability of requirements → features → test cases. Use Azure DevOps for backlog management, pipelines, and documentation. Cross-Team Collaboration Act as the bridge between engineering, product, QA, and business teams. Contribute to sprint planning, backlog refinement, and architectural discussions. Coordinate with internal engineering teams distributed globally. Key Requirements Core Technical Skills 8+ years of professional experience in Backend Java Development . Strong expertise in: Java (8+) Spring & Spring Boot Hibernate / JPA REST APIs SQL databases (Oracle, MySQL) Solid experience designing scalable backend systems. Familiarity with CI/CD tools and version control (Git, Jenkins, etc.). Experience with cloud environments (Azure or AWS) is a plus. Technical Leadership Previous experience leading small teams or acting as senior reference developer. Strong knowledge of software architecture, patterns, and best practices. Ability to guide developers through complex debugging and architectural challenges. Soft Skills Strong communication skills and ability to work with cross-functional teams. Ownership mindset with a proactive approach. Fluent in English (mandatory). Ability to collaborate in an international environment. Nice to Have Knowledge of Scala or other JVM languages. Experience with containerization (Docker, Kubernetes). Familiarity with gaming or high-transaction environments. Exposure to Agile methodologies (Scrum). Other Details This is a hybrid role based in Lisbon with a requirement for remote collaboration and availability for periodic travel to the UK.