Senior Fullstack Developer (Node.js + React)

🏢 Summary: B2B role for a Senior Java Developer to build a greenfield Straight-Through Processing (STP) lending platform focused on automated, scalable end-to-end loan processing. The position involves designing and developing a modern backend system with event-driven architecture and multiple integrations. You will influence architectural decisions and technology choices while working in an Agile, international environment. 🗂️ Requirements: 5+ years of experience as Java Developer, Strong experience with Java 21+, Hands-on experience with Spring Boot, Deep knowledge of JPA/Hibernate, Experience designing and building REST APIs, Experience with Kafka and event-driven architecture, Experience with relational databases and database design, Experience with Maven, Experience with Liquibase or similar versioning tools, Understanding of clean architecture and design principles, Experience working in Agile environment, Ability to work in English-speaking team 📃 Skills: Java, Spring, SpringBoot, JPA, Hibernate, Kafka, REST, Maven, Liquibase, SQL, PostgreSQL, Oracle, Git, Cucumber, Copilot, Agile 🏢 Description: Salary: 1000-1400 PLN/day on B2B Work model: elastic hybrid from Gdańsk/ Gdynia (2 days per week from the office) Why choose this offer? You can expect a flexible work organization The international work environment will give you the opportunity to interact with the English language on a daily basis Scandinavian organizational culture will provide you with work-life balance, you will gain time for additional training (financed by Jit) The Jit community will bring you a nice time during regular integration meetings Project You will be involved in a financial project focused on building a modern Straight-Through Processing (STP) Lending platform , designed to support end-to-end loan processing in a highly automated and scalable way. The system will play a central role in the lending ecosystem, integrating with multiple internal and external services, ensuring efficient data flow and real-time event processing. As this is a greenfield initiative, you will have a direct impact on architectural decisions, technology choices, and development standards, helping to shape a robust backend platform from the ground up. Responsibilities you'll have Designing and developing scalable backend services using Java and Spring Boot Building and maintaining REST APIs for integration with external and internal systems Implementing event-driven architecture using Kafka Designing and managing persistence layers with JPA and relational databases Managing database schema evolution using Liquibase Collaborating closely with Product Owner and Business SMEs to refine requirements Writing clean, maintainable, and testable code following best engineering practices Leveraging AI-assisted tools (e.g., GitHub Copilot) to improve development efficiency Participating in Agile ceremonies and contributing to continuous improvement Ensuring high code quality through testing, code reviews, and best practices Expected competences and knowledge 5y+ of experience as Java Developer Strong experience in Java ( Java 21+) with solid understanding of backend development Extensive hands-on experience with Spring Boot framework Deep knowledge of JPA/Hibernate and database design principles Experience in building RESTful APIs and integrating distributed systems Understanding of event-driven architectures ( Kafka ) Familiarity with Maven for build and dependency management Experience with Liquibase or similar tools for database versioning Good understanding of clean architecture and software design principles Experience working in Agile environments Strong communication skills and ability to work in an English-speaking team Nice to have: experience with Cucumber for BDD testing Technologies you'll work with Java 21+ Spring Boot JPA / Hibernate Apache Kafka REST APIs Maven Liquibase Relational databases (e.g., PostgreSQL, Oracle) GitHub Copilot (AI-assisted development) Cucumber (optional, for testing) Client – why choose this particular client from the Jit portfolio? Jit Team has had an over-decade-long relationship with the leading financial group in the Nordic countries, and we are privileged to be our client's premier partner in Poland. At present, over 200 Jit personnel are engaged in the completion of more than 60 projects for this Norwegian major provider of financial services with a global presence and a strong focus on modern technology. Our customer's work atmosphere is epitomized by the Scandinavian culture , which is conducive to people who place emphasis on work-life balance and feedback culture . Furthermore, all projects are executed in international teams, giving constant exposure to the English language. About Jit Team The Human factor of IT - it's not just a slogan, it's a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 700 experienced experts . We create highly specialised teams for clients from all over the world. We offer team members developmental projects, a wide range of benefits and a proprietary professional development programme. Behind our maxim are also charitable and educational activities. We support pupils and students by donating learning equipment. We offer internships to help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We are a Polish company and we share what we have achieved over 15 years of activity . By supporting indigenous initiatives, we ensure the circulation of good energy.

🏢 Summary: DevOps Engineer role in an international banking project focused on developing and supporting Data Products. The position involves building and maintaining CI/CD pipelines, automating infrastructure, and supporting Kubernetes-based deployments in an agile environment. You will collaborate with development and QA teams to improve testing, deployment, and delivery processes. 🗂️ Requirements: Strong experience with CI/CD pipelines, especially Jenkins, Experience with Terraform and Ansible, Good Linux administration skills, Scripting skills in Shell and Python, Basic experience with Kubernetes and containerization, Proficiency with Git, Basic programming skills in Python or Groovy, Experience working in agile environments 📃 Skills: Jenkins, JobDSL, Groovy, Terraform, Ansible, Linux, Shell, Python, Kubernetes, Docker, Git, Bitbucket, Scala, Kafka, Airflow, AWS, Hadoop, Spark, SonarQube, PostgreSQL, Tekton 🏢 Description: Salary: 1000 - 1200 PLN/day on B2B Work model: elastic hybrid (1-2 days per week from the office in Warszawa/ Gdańsk/ Gdynia/ Łódź) Why choose this offer? You can expect a flexible work organization The international work environment will give you the opportunity to interact with the English language on a daily basis Scandinavian organizational culture will provide you with work-life balance, you will gain time for additional training (financed by Jit) The Jit community will bring you a nice time during regular integration meetings Project You will be involved in a financial project focused on supporting the development of Data Products as a DevOps Engineer within an international banking environment . The role centers on designing and maintaining CI/CD pipelines using Jenkins, as well as building automation solutions with Terraform and Ansible. You will collaborate closely with developers and QA engineers, providing tools, scripts, and support to improve testing, deployment, and delivery processes . Additionally, you will troubleshoot Kubernetes-based deployments and act as a key point of contact for DevOps-related topics across teams. The project follows an agile approach and requires strong communication and collaboration skills. Responsibilities you'll have Develop and maintain CI/CD pipelines using Jenkins (JobDSL, Groovy) Build and manage infrastructure automation with Terraform and Ansible Create and maintain scripts in Shell and Python to support development processes Develop small tools and utilities to improve CI/CD pipelines and support developers and QA engineers Troubleshoot deployment issues in Kubernetes environments Collaborate with internal and external teams as a DevOps point of contact Support and enable developers and testers by promoting DevOps best practices Contribute to knowledge sharing through internal trainings, demos, and presentations Optionally develop container-based microservices and support AI-related solutions in the Data area Expected competences and knowledge Strong experience in CI/CD, particularly with Jenkins or similar automation tools Solid knowledge of infrastructure as code tools, especially Terraform and Ansible Good Linux administration skills and strong scripting abilities (Shell, Python) Basic experience with Kubernetes and containerization concepts Proficiency with Git (preferably Bitbucket) Basic programming skills (Python, Groovy) Understanding of agile methodologies and experience working in distributed teams Strong communication skills and a collaborative mindset Nice to have Experience with Kafka, Airflow, AWS, Hadoop, or Spark Familiarity with SonarQube, PostgreSQL, or Tekton Technologies you'll work with Jenkins (JobDSL, Groovy) for CI/CD pipeline development Terraform and Ansible for infrastructure automation Linux environment with Shell and Python scripting Kubernetes and Docker for containerization Git (Bitbucket) for version control Scala and Python-based application ecosystems Kafka, Airflow, AWS, Hadoop, Spark SonarQube, PostgreSQL, Tekton Client – why choose this particular client from the Jit portfolio? Jit Team has had an over-decade-long relationship with the leading financial group in the Nordic countries, and we are privileged to be our client's premier partner in Poland. At present, over 200 Jit personnel are engaged in the completion of more than 60 projects for this Norwegian major provider of financial services with a global presence and a strong focus on modern technology. Our customer's work atmosphere is epitomized by the Scandinavian culture , which is conducive to people who place emphasis on work-life balance and feedback culture . Furthermore, all projects are executed in international teams, giving constant exposure to the English language. About Jit Team The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts , to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams. Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.

🏢 Summary: Frontend Test Automation Engineer role in a financial project focused on automated frontend and API testing using modern QA frameworks in an Agile environment. The position involves building and maintaining automated tests, supporting manual testing when needed, and collaborating closely with developers and scrum teams. Hybrid work model with flexible organization and international collaboration. 🗂️ Requirements: Experience in automated frontend testing, Knowledge of Java, Knowledge of TypeScript, Hands-on experience with Playwright, Hands-on experience with Cucumber, Experience with API testing, Willingness to perform manual testing, Understanding of Agile and Scrum, Strong communication skills 📃 Skills: TypeScript, Playwright, Java, Cucumber, Selenium, REST, API, Git, Agile 🏢 Description: Salary: 800 - 1100 PLN/day on B2B Work model: elastic hybrid from Gdynia / Gdańsk / Warsaw (3 days per week from the office) Why choose this offer? - Flexible work organization - International work environment with daily use of English - Scandinavian organizational culture supporting work-life balance - Additional training financed by Jit - Regular integration meetings Project You will be involved in a financial project focused on frontend testing using modern tools and frameworks. You will work in an Agile, collaborative environment alongside developers, analysts, and QA engineers. The team is focused on quality, code reviews, openness to feedback, and continuous improvement. Responsibilities you'll have - Design, develop, and maintain automated frontend test scripts using Playwright and Cucumber (or Selenium occasionally) - Execute and analyse test results to ensure application quality - Perform manual testing to support specific releases or critical fixes when needed - Participate in API testing and contribute to test coverage across service layers - Collaborate with developers, product owners, and scrum teams to refine requirements and ensure testability - Actively participate in Agile ceremonies and team discussions - Maintain test documentation and ensure test cases reflect business and technical needs Expected competences and knowledge - Solid experience in automated frontend testing - Java and TypeScript knowledge - Hands-on knowledge of Playwright and Cucumber - Experience with API testing using Java - Openness to perform manual testing - Good understanding of Agile methodology and working within scrum teams - Proactive team player with strong communication skills - Open-minded attitude with a focus on quality Technologies you'll work with - TypeScript - Playwright - Java - Cucumber - Selenium - REST API - GIT - Agile

🏢 Summary: The offer is for a DevOps Engineer in a financial project focused on building and maintaining a secure API Management platform within a large banking environment. The role centers on automating infrastructure on AWS, developing CI/CD pipelines, and managing containerized environments to ensure stable and efficient API Gateway operations. You will work with modern DevOps tools to enhance monitoring, logging, and infrastructure as code practices. 🗂️ Requirements: Strong experience with AWS, Experience with Terraform for infrastructure provisioning, Hands-on experience with Docker, Hands-on experience with Kubernetes, Experience building and maintaining CI/CD pipelines, Experience with Ansible, Knowledge of monitoring and observability tools, Understanding of DevOps principles and best practices 📃 Skills: AWS, EKS, Terraform, Ansible, Docker, Kubernetes, CI/CD, Grafana, Prometheus, VictoriaMetrics, Splunk, Kong 🏢 Description: Salary: 1100 - 1450 PLN/day on B2B Work model: hybrid from Gdynia / Gdańsk / Warszawa / Łódź (2/3 days per week from the office) Why choose this offer? You can expect a flexible work organization The international work environment will give you the opportunity to interact with the English language on a daily basis Scandinavian organizational culture will provide you with work-life balance, you will gain time for additional training (financed by Jit) The Jit community will bring you a nice time during regular integration meetings Project You will be involved in a financial project focused on enabling fast and secure integrations within a large banking environment and with external partners through a new API Management platform. In this role, you will automate infrastructure provisioning (e.g., EKS) using Terraform and build CI/CD pipelines for API deployments and configuration updates. You will also implement monitoring and logging solutions to ensure platform stability and performance. Additionally, you will support the development of an API Catalogue Portal and work with containerized applications in Kubernetes. The position includes maintaining and improving the API Gateway environment with a strong focus on automation and DevOps best practices. Responsibilities you'll have Automating infrastructure provisioning (e.g., EKS clusters) using Terraform and supporting infrastructure-as-code best practices Building, maintaining, and optimizing CI/CD pipelines for API deployments and configuration changes Managing and improving containerized environments based on Docker and Kubernetes Implementing and enhancing monitoring and logging solutions (e.g., Grafana, Prometheus/Victoria Metrics, Splunk) Supporting the development and operation of the API Gateway platform, including automation and performance improvements Contributing to infrastructure migration activities and continuous improvement of DevOps processes Assisting in the setup and maintenance of the API Catalogue Portal, including deployment pipelines and environment configuration Expected competences and knowledge Strong experience with AWS and infrastructure provisioning using Terraform Hands-on expertise in Docker and Kubernetes, including managing containerized environments Solid understanding of CI/CD pipelines and automation tools Experience with configuration management tools such as Ansible Knowledge of monitoring and observability tools (e.g., Grafana, Prometheus/Victoria Metrics, Splunk) Good understanding of DevOps principles and best practices Nice to have: familiarity with API gateway solutions such as Kong Gateway or similar Technologies you'll work with AWS (including EKS and cloud-native services) Terraform, Ansible Docker, Kubernetes CI/CD tools and pipelines Grafana, Prometheus / Victoria Metrics, Splunk API Gateway solutions (e.g., Kong Gateway or similar) Client – why choose this particular client from the Jit portfolio? Jit Team has had an over-decade-long relationship with the leading financial group in the Nordic countries, and we are privileged to be our client's premier partner in Poland. At present, over 200 Jit personnel are engaged in the completion of more than 60 projects for this Norwegian major provider of financial services with a global presence and a strong focus on modern technology. Our customer's work atmosphere is epitomized by the Scandinavian culture , which is conducive to people who place emphasis on work-life balance and feedback culture . Furthermore, all projects are executed in international teams, giving constant exposure to the English language. About Jit Team The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts , to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams. Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.

🏢 Summary: B2B Java Developer role in a financial project modernizing and rebuilding a digital banking channel for corporate clients. The position involves developing and enhancing APIs, contributing to system modernization from legacy platforms, and working across microservice and monolith architectures in a SAFe Agile environment. The project focuses on resilient, domain-driven solutions supporting core banking services such as payments and accounts. 🗂️ Requirements: Minimum 6 years of experience in Java development, Experience in building API solutions, Experience with Spring and Hibernate, Experience with SQL and REST, Experience with Microservices architecture, Minimum 2 years of experience with Angular, Experience with Cucumber, Experience with Jasmine unit testing, Knowledge of SOLID principles, Knowledge of design patterns, Experience with GIT, Experience working in Agile environment, Familiarity with reactive programming, Knowledge of Domain Driven Design (DDD) 📃 Skills: Java, Spring, Hibernate, Angular, SQL, REST, Microservices, GIT, Cucumber, Jasmine, Reactive, DDD, SAFe 🏢 Description: Salary: 1000 - 1200 PLN/day on B2B Work model: elastic hybrid from Gdynia / Gdańsk / Warszawa (3 days per week from the modern office) Why choose this offer? You can expect a flexible work organization The international work environment will give you the opportunity to interact with the English language on a daily basis Scandinavian organizational culture will provide you with work-life balance, you will gain time for additional training (financed by Jit) The Jit community will bring you a nice time during regular integration meetings Project You will be involved in a financial project focused on modernising and building a new digital banking channel for corporate customers. The initiative aims to replace the legacy platform and redefine how clients manage payments, accounts, liquidity, and user permissions. The team operates within the SAFe Agile framework, delivering resilient solutions across microservice and monolith architecture using DDD and port-adapter approach. Responsibilities you'll have Developing new features that modernise the platform and support maintenance and compliance requirements Building and enhancing API solutions to support essential banking services such as Accounts, Payments, File Transfer, and international and local services Contributing to system modernisation and transition from legacy solutions Working within microservice and monolith architecture Collaborating closely with developers, Product Owner, architects, analysts and QA Participating in Agile (SAFe) ceremonies and delivering high-quality software in an international environment Expected competences and knowledge Hands-on experience in Java development (preferred at least 6 years) Experience in building API solutions Familiarity with reactive programming Working knowledge of Spring, Hibernate and Cucumber Experience with SQL, REST, Microservices and GIT 2 years of experience with Angular Working knowledge of unit testing in Jasmine Knowledge of SOLID principles and design patterns Experience working in an Agile environment Technologies you'll work with Java Spring Angular Cucumber Hibernate Jasmine SQL REST Microservices GIT Reactive stack Domain Driven Design (DDD) SAFe Agile framework Client – why choose this particular client from the Jit portfolio? Jit Team has had an over-decade-long relationship with the leading financial group in the Nordic countries, and we are privileged to be our client's premier partner in Poland. At present, over 200 Jit personnel are engaged in the completion of more than 60 projects for this Norwegian major provider of financial services with a global presence and a strong focus on modern technology. Our customer's work atmosphere is epitomized by the Scandinavian culture , which is conducive to people who place emphasis on work-life balance and feedback culture . Furthermore, all projects are executed in international teams, giving constant exposure to the English language. About Jit Team The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts , to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams. Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.

🏢 Summary: B2B contract role for a senior Java developer in a financial project modernizing and rebuilding a digital banking channel for corporate clients. The position focuses on developing and enhancing APIs, migrating from legacy systems, and delivering solutions within microservice and monolith architectures using DDD in a SAFe Agile environment. Hybrid work model with collaboration in an international team. 🗂️ Requirements: Minimum 6 years of experience in Java development, Experience in building API solutions, Experience with Spring and Hibernate, Experience with SQL and REST, Experience with Microservices architecture, Minimum 2 years of experience with Angular, Experience with unit testing in Jasmine, Knowledge of SOLID principles and design patterns, Experience with Cucumber, Experience working in Agile (SAFe) environment, Experience with Git, Familiarity with reactive programming 📃 Skills: Java, Spring, Hibernate, Angular, Cucumber, Jasmine, SQL, REST, Microservices, Git, Reactive, DDD, SAFe 🏢 Description: Salary: 1000 - 1200 PLN/day on B2B Work model: elastic hybrid from Gdynia / Gdańsk / Warszawa (3 days per week from the modern office) Why choose this offer? You can expect a flexible work organization The international work environment will give you the opportunity to interact with the English language on a daily basis Scandinavian organizational culture will provide you with work-life balance, you will gain time for additional training (financed by Jit) The Jit community will bring you a nice time during regular integration meetings Project You will be involved in a financial project focused on modernising and building a new digital banking channel for corporate customers. The initiative aims to replace the legacy platform and redefine how clients manage payments, accounts, liquidity, and user permissions. The team operates within the SAFe Agile framework, delivering resilient solutions across microservice and monolith architecture using DDD and port-adapter approach. Responsibilities you'll have Developing new features that modernise the platform and support maintenance and compliance requirements Building and enhancing API solutions to support essential banking services such as Accounts, Payments, File Transfer, and international and local services Contributing to system modernisation and transition from legacy solutions Working within microservice and monolith architecture Collaborating closely with developers, Product Owner, architects, analysts and QA Participating in Agile (SAFe) ceremonies and delivering high-quality software in an international environment Expected competences and knowledge Hands-on experience in Java development (preferred at least 6 years) Experience in building API solutions Familiarity with reactive programming Working knowledge of Spring, Hibernate and Cucumber Experience with SQL, REST, Microservices and GIT 2 years of experience with Angular Working knowledge of unit testing in Jasmine Knowledge of SOLID principles and design patterns Experience working in an Agile environment Technologies you'll work with Java Spring Angular Cucumber Hibernate Jasmine SQL REST Microservices GIT Reactive stack Domain Driven Design (DDD) SAFe Agile framework Client – why choose this particular client from the Jit portfolio? Jit Team has had an over-decade-long relationship with the leading financial group in the Nordic countries, and we are privileged to be our client's premier partner in Poland. At present, over 200 Jit personnel are engaged in the completion of more than 60 projects for this Norwegian major provider of financial services with a global presence and a strong focus on modern technology. Our customer's work atmosphere is epitomized by the Scandinavian culture , which is conducive to people who place emphasis on work-life balance and feedback culture . Furthermore, all projects are executed in international teams, giving constant exposure to the English language. About Jit Team The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts , to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams. Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.

🏢 Summary: Backend Developer role focused on maintaining and enhancing an existing Java-based system, ensuring stability and working with a legacy codebase in an Agile environment. The position involves designing backend services, developing REST APIs, and supporting ongoing system maintenance. Hybrid work model with collaboration in international teams. 🗂️ Requirements: Experience with Java 7/8, Experience with Maven, Experience designing backend services, Experience developing REST APIs, Ability to write unit tests, Experience working with legacy codebase, Experience working in Agile environment, Fluency in English, Experience with version control systems 📃 Skills: Java, Maven, JSP, Git, REST, Agile, UnitTesting 🏢 Description: Salary: 1000-1200 PLN/day on B2B Work model: hybrid from Gdańsk / Warszawa / Łódź (2/3 days per week from the office) Why choose this offer? You can expect a flexible work organization The international work environment will give you the opportunity to interact with the English language on a daily basis Scandinavian organizational culture will provide you with work-life balance, you will gain time for additional training (financed by Jit) The Jit community will bring you a nice time during regular integration meetings Project You will join a team working on an existing system that requires ongoing maintenance and support . The current focus is on ensuring system stability, maintaining functionality, and working with a legacy codebase. Work is carried out in an Agile environment, with a strong emphasis on collaboration and code quality. Responsibilities you'll have Designing and implementing backend services based on given specifications Developing and maintaining REST APIs Writing and maintaining unit tests Working with and analyzing legacy codebase Contributing to the ongoing maintenance and stability of the existing system Collaborating in an Agile environment Using version control and supporting development workflows Expected competences and knowledge Experience with Java 7/8 Experience with Maven Experience in designing and implementing backend services Experience in writing REST APIs Willingness to work with and analyze legacy systems Experience working in an Agile environment Good communication skills Fluency in English Technologies you'll work with Java 7/8 Maven JSP Git REST APIs Client – why choose this particular client from the Jit portfolio? Jit Team has had an over-decade-long relationship with the leading financial group in the Nordic countries, and we are privileged to be our client's premier partner in Poland. At present, over 200 Jit personnel are engaged in the completion of more than 60 projects for this Norwegian major provider of financial services with a global presence and a strong focus on modern technology. Our customer's work atmosphere is epitomized by the Scandinavian culture , which is conducive to people who place emphasis on work-life balance and feedback culture . Furthermore, all projects are executed in international teams, giving constant exposure to the English language. About Jit Team The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts , to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams. Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.

🏢 Summary: B2B contract role for a Front-End Developer in a financial project focused on building and maintaining modern Angular applications consuming REST APIs. The position involves developing user-friendly solutions, integrating with data processing systems, and collaborating within an international team. Hybrid work model with strong emphasis on code quality and application optimization. 🗂️ Requirements: Experience with Angular Framework, Strong knowledge of TypeScript, Strong knowledge of JavaScript, Experience working with REST APIs, Expertise in Hadoop, Expertise in MapReduce, Ability to analyze and debug applications, Experience in data processing, Ability to optimize and reuse existing code, Experience working in software development teams 📃 Skills: Angular, TypeScript, JavaScript, REST, Hadoop, MapReduce 🏢 Description: Salary: 600-900 PLN/day on B2B Work model: hybrid from Gdynia / Gdańsk / Warszawa / Łódź (3 days per week from the office) Why choose this offer? You can expect a flexible work organization The international work environment will give you the opportunity to interact with the English language on a daily basis Scandinavian organizational culture will provide you with work-life balance, you will gain time for additional training (financed by Jit) The Jit community will bring you a nice time during regular integration meetings Project You will be involved in a financial project focused on developing and maintaining modern front-end applications that consume REST APIs, supporting business processes and delivering user-friendly solutions for financial stakeholders. Responsibilities you'll have Designing, creating and maintaining front-end applications to consume REST APIs Writing code in accordance with application requirements Working as a member of a software development team to ensure high-quality standards Explaining complex technical topics in a clear, simple way for non-technical audiences Debugging and troubleshooting applications Making suggestions for enhancements to application procedures and infrastructure Collaborating effectively across teams and contributing to a positive work environment Building strong relationships and maintaining trust with team members and business stakeholders Expected competences and knowledge Experience with Angular Framework Strong TypeScript and JavaScript knowledge Expertise in Hadoop and MapReduce Strong communication skills Team player mindset with proven collaboration skills Ability to analyze and debug applications effectively Experience in working with REST APIs and data processing Capability to reuse and optimize existing code Proactive approach to improving processes and solutions Technologies you'll work with Angular Framework TypeScript JavaScript REST API Hadoop MapReduce Client – why choose this particular client from the Jit portfolio? Jit Team has had an over-decade-long relationship with the leading financial group in the Nordic countries, and we are privileged to be our client's premier partner in Poland. At present, over 200 Jit personnel are engaged in the completion of more than 60 projects for this Norwegian major provider of financial services with a global presence and a strong focus on modern technology. Our customer's work atmosphere is epitomized by the Scandinavian culture , which is conducive to people who place emphasis on work-life balance and feedback culture . Furthermore, all projects are executed in international teams, giving constant exposure to the English language. About Jit Team The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts , to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams. Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.

🏢 Summary: Hybrid B2B role for a Python developer focused on building scalable applications, APIs, microservices, and AI-driven data transformation solutions in an international financial environment. The position involves developing integrations, CI/CD pipelines, and automation solutions using modern cloud and AI technologies. Candidates will collaborate closely with product and architecture teams while working with data enrichment, LLMs, and enterprise systems. 🗂️ Requirements: Advanced Python development, Advanced Flask or similar framework knowledge, Advanced REST API knowledge, Intermediate LLM experience, Intermediate Docker experience, Intermediate JavaScript knowledge, Intermediate PostgreSQL knowledge, SQLAlchemy knowledge, Experience with CI/CD pipelines, Experience with Git, Ability to write tests with pytest, Experience with data integrations and transformation, English communication skills, Hybrid availability in Gdynia, Gdańsk, Warszawa, or Łódź 📃 Skills: Python, Flask, REST, LLM, Docker, JavaScript, PostgreSQL, SQLAlchemy, React, CSS, SCSS, pytest, CI/CD, Git, TypeScript, Redux, Zustand, SharePoint, Artifactory, JFrog, Kubernetes, AWS 🏢 Description: Salary: 1100-1300 PLN/day on B2B Work model: hybrid from Gdynia / Gdańsk / Warszawa / Łódź (2/3 days per week from the office) Why choose this offer? You can expect a flexible work organization The international work environment will give you the opportunity to interact with the English language on a daily basis Scandinavian organizational culture will provide you with work-life balance, you will gain time for additional training (financed by Jit) The Jit community will bring you a nice time during regular integration meetings Project We are looking for a forward leaning developer to work closely with Product Owners, Solution Architects and Analysts to refine epics, user stories and business requirements into technical design and working software, with high development standards and to implement some of the industry best practices. Key topics in scope include data transformation as well as AI driven data enrichment, where the overall solution objective is to overlook that all parties involved act according to rules and regulations. And importantly, that this is done as efficiently as possible using modern ways of automation, including but not limited to AI. This involves building data integrations and data transformation logic, reading from and writing to various databases and APIs, securing data completeness and data reconciliations, building microservices and deployment pipelines, and utilizing LLMs both in the actual solutions (e.g. data enrichment) and for support in your role as developer. Responsibilities you'll have Develop and maintain scalable applications, APIs, and microservices using Python and modern frameworks. Collaborate with Product Owners, Architects, and Analysts to transform business requirements into technical solutions. Build and optimize data integrations, transformation processes, and AI-powered data enrichment capabilities. Ensure data quality, consistency, and reliability across databases, APIs, and enterprise systems. Develop and maintain CI/CD pipelines, automated tests, and deployment processes. Support the adoption of AI, automation, and engineering best practices to improve business processes and software quality. Work closely with stakeholders in an international environment to deliver efficient and innovative solutions. To succeed in this role, we believe that a candidate: is a team player who enjoys collaboration in a multicultural environment has a genuine interest to learn and develop within the area is appreciated for your positive approach and ability to turn challenges in to opportunities is good at engaging stakeholders at different levels is a skilled engineer at heart with passion for developing solutions and take pride in seeing your efforts paying off in form of a great business application Expected competences and knowledge Advanced knowledge in Python development and configuration Advanced knowledge of Flask (or similar) frameworks Advanced knowledge of REST APIs Intermediate LLM experience Intermediate Docker experience Intermediate JavaScript experience Intermediate knowledge of PostgreSQL and SQLAlchemy Familiarity with React Familiarity with CSS and SCSS Ability to write tests (preferably with pytest) Experience with CI/CD and creating pipelines Experience with Git Technologies you'll work with Experience with AI tooling Familiarity with TypeScript Familiarity with web components Familiarity with Redux/Zustand Experience with SharePoint API Experience with Artifactory (JFrog) Experience with Kubernetes Experience with cloud services (AWS) Client – why choose this particular client from the Jit portfolio? Jit Team has had an over-decade-long relationship with the leading financial group in the Nordic countries, and we are privileged to be our client's premier partner in Poland. At present, over 200 Jit personnel are engaged in the completion of more than 60 projects for this Norwegian major provider of financial services with a global presence and a strong focus on modern technology. Our customer's work atmosphere is epitomized by the Scandinavian culture , which is conducive to people who place emphasis on work-life balance and feedback culture . Furthermore, all projects are executed in international teams, giving constant exposure to the English language. About Jit Team The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts , to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams. Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.

🏢 Summary: Full Stack Developer role in the payment domain focused on building and scaling high-performance, distributed financial applications using Java and Angular. The position involves developing robust backend services, REST APIs, and modern frontend solutions, with strong emphasis on reactive programming, automated testing, and CI/CD practices. The project operates in an international environment with hybrid work model. 🗂️ Requirements: Minimum 5 years of experience as Full Stack Developer, Strong experience with Java, Strong experience with Spring Boot, Experience with reactive programming (e.g. RxJava), Solid knowledge of Angular or AngularJS, Experience with TypeScript, Experience in REST API development, Hands-on experience with unit testing, Experience with test automation frameworks (e.g. Cucumber), Experience with build tools and CI/CD pipelines 📃 Skills: Java, SpringBoot, Angular, AngularJS, TypeScript, RxJava, REST, Cucumber, CI/CD, UnitTesting, ReactiveProgramming 🏢 Description: Salary: 1000 - 1300 PLN/day on B2B Work model: hybrid from Gdynia / Gdańsk / Warszawa / Łódź (3 days per week from the office) Why choose this offer? You can expect a flexible work organization The international work environment will give you the opportunity to interact with the English language on a daily basis Scandinavian organizational culture will provide you with work-life balance, you will gain time for additional training (financed by Jit) The Jit community will bring you a nice time during regular integration meetings Project You will be involved in a dynamic project within the payment domain, focused on building and scaling modern, high-performance financial applications. The team works on developing robust, distributed systems with an emphasis on reliability, scalability, and seamless user experience. Responsibilities you'll have Design, develop, and maintain full stack applications using Java and Angular Build and enhance backend services using Spring Boot and reactive programming (e.g. RxJava) Create and maintain RESTful APIs for seamless system integration Actively participate in application testing to prevent QA bottlenecks during high delivery periods Contribute to automated testing using unit tests and frameworks such as Cucumber Collaborate closely with cross-functional teams to improve performance and delivery flow Work with build tools and CI/CD pipelines to streamline development processes Expected competences and knowledge Minimum 5 years of experience as a Full Stack Developer Strong experience with Java and Spring Boot Experience with reactive programming approaches and libraries (e.g. RxJava) Solid knowledge of Angular/AngularJS and TypeScript Experience in REST API development Hands-on experience with unit testing and test automation Familiarity with automation frameworks (e.g. Cucumber) Strong problem-solving skills and engineering mindset Excellent communication skills and ability to work in a team Experience in the payment domain is a plus Technologies you'll work with Java, Spring Boot Angular / AngularJS, TypeScript RxJava (or similar reactive libraries) REST APIs Cucumber and test automation tools Build tools and CI/CD solutions Client – why choose this particular client from the Jit portfolio? Jit Team has had an over-decade-long relationship with the leading financial group in the Nordic countries, and we are privileged to be our client's premier partner in Poland. At present, over 200 Jit personnel are engaged in the completion of more than 60 projects for this Norwegian major provider of financial services with a global presence and a strong focus on modern technology. Our customer's work atmosphere is epitomized by the Scandinavian culture , which is conducive to people who place emphasis on work-life balance and feedback culture . Furthermore, all projects are executed in international teams, giving constant exposure to the English language. About Jit Team The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts , to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams. Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.