Mid React Developer

🏢 Summary: B2B mid-level Flutter Developer role to build a greenfield fintech platform in the banking domain, focusing on mobile applications and frontend architecture. You will design and develop Flutter-based mobile solutions integrated with a React web layer, collaborating in a cross-functional team. The position offers real impact on architecture and core frontend services in a large-scale financial project. 🗂️ Requirements: Commercial experience with Flutter, Experience building mobile applications for Android and iOS using Flutter, Understanding of frontend architecture, Knowledge of state management patterns, Experience integrating REST APIs, Ability to design scalable and performant UI, Experience with code reviews and clean code practices 📃 Skills: Flutter, React, REST, Android, iOS, GCP, CI/CD, APIs, State-management 🏢 Description: Salary: 500-900 PLN/MD (B2B contract) Work model: hybrid from Gdynia / Gdańsk / Warszawa / Rzeszów / Kraków (3 days per week from the office) Why choose this offer? Opportunity to build a fintech platform from scratch (greenfield project) Real impact on architecture and core frontend services from day one Collaboration within a cross-functional, international team Work on a large-scale financial platform in the banking domain Project We are building a fintech platform from the ground up for a financial institution operating in the banking products space. As a Flutter Developer , you will be part of a cross-functional squad responsible for designing and developing the mobile layer and parts of the frontend ecosystem of this greenfield product. You will work within a mixed frontend-backend squad, collaborating closely with your Tech Lead, Senior Developer, Business Analyst, and QA Engineer. The project involves Flutter-based applications integrated with a React-based web layer , giving you exposure to both mobile and web frontend ecosystems. Responsibilities you'll have Design, develop, and maintain mobile applications using Flutter Collaborate with React developers on shared frontend architecture and API integration Build performant and scalable UI across mobile and web-integrated solutions Translate business requirements and UI/UX designs into clean, maintainable code Integrate applications with backend APIs and services Participate in code reviews, technical discussions, and architectural decisions Write clean, testable, and well-documented code following best practices Contribute to establishing cross-platform frontend standards and patterns Communicate progress, blockers, and technical decisions in English Expected competences and knowledge Solid commercial experience in Flutter development (mid-level) Hands-on experience building mobile applications with Flutter (Android/iOS) Understanding of frontend architecture and state management patterns Experience with REST API integration Fluent English ( spoken and written) Availability to work from the office 3 days per week (Warsaw, Kraków, Tricity, or Rzeszów) Nice to have: Experience with React Familiarity with Google Cloud Platform (GCP) Experience in financial services or banking domain Experience in greenfield projects Knowledge of state management patterns, design systems, and component-driven architecture Technologies you'll work with Flutter React REST APIs GCP Modern frontend tooling and libraries CI/CD pipelines Client – why choose this particular client from the Jit portfolio? The client is a fintech institution operating in the Kingdom of Saudi Arabia, focused on modernising its digital capabilities and expanding its offering for micro-SME customers . It is an organisation with a strong market presence and a clear strategic commitment to innovation, aiming to deliver banking experiences that are fully digital, user-friendly, and deeply integrated with day-to-day business needs. 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. Wymagania Oczekujemy Oferujemy

🏢 Summary: Senior Java Developer role in a greenfield fintech project focused on building a large-scale banking platform from scratch. The position involves designing and developing core backend microservices, shaping architecture, and contributing to technical decisions within a cross-functional agile team. The offer provides real impact on architecture and engineering standards in an event-driven, microservices-based environment. 🗂️ Requirements: Minimum 6 years of commercial software development experience, Strong hands-on experience with Java, Very good knowledge of Spring Boot, Spring MVC, Spring Cloud, Experience with event-driven architectures and asynchronous processing, Experience with microservices architecture, Practical experience with PostgreSQL or other relational databases, Understanding of frontend architecture and React concepts, Experience working in Agile/Scrum methodology, Fluent English, spoken and written 📃 Skills: Java, Spring, SpringBoot, SpringMVC, SpringCloud, Microservices, PostgreSQL, React, Kafka, GCP, Kubernetes, SQL, REST, Agile, Scrum 🏢 Description: Salary: 1000 - 1300 PLN/MD on B2B Work model: hybrid from Gdynia / Gdańsk / Warszawa / Rzeszów / Kraków (2 days per week from the office) Why choose this offer? Opportunity to build a fintech platform from scratch (greenfield project) Real impact on architecture and core frontend services from day one Collaboration within a cross-functional, international team Work on a large-scale financial platform in the banking domain Project We are building a new fintech platform from the ground up for a financial institution operating in the banking products space. As a Senior Java Developer , you will join a cross-functional squad (backend and frontend developers, QA, Business Analyst) and work on designing and developing core backend components. This is a greenfield initiative , where architecture, standards, and development patterns are defined from day one. Senior engineers play an active role in shaping technical direction and ensuring high code quality. You will work closely with Delivery Manager in an agile setup. Responsibilities you'll have: Design, develop, and maintain backend services using Java Build and evolve microservices based on the Spring ecosystem Work with event-driven and asynchronous communication patterns Collaborate closely with frontend and platform teams Actively participate in code reviews and ensure high engineering standards Contribute to architectural and technical decision-making Support and mentor less experienced developers Identify and address technical risks and bottlenecks Communicate technical topics effectively in English Expected competences and knowledge: Minimum 6 years of commercial experience in software development Strong hands-on expertise in Java Very good knowledge of Spring (Spring Boot, Spring MVC, Spring Cloud) Experience with event-driven architectures (message brokers, asynchronous processing, events) Practical experience with PostgreSQL or another relational database Experience working in microservices-based environments Understanding of frontend architecture and concepts , with particular focus on React (ability to collaborate efficiently with frontend developers, review high-level solutions, understand integration points and trade-offs) Familiarity with agile methodologies (Scrum / Agile) Fluent English (spoken and written) Nice to have: Experience with React Experience with Kafka or similar streaming platforms Familiarity with Google Cloud Platform (GCP) Experience with Kubernetes and containerized deployments Background in fintech or banking projects Previous work on greenfield systems Technologies you'll work with Java Spring (Boot, MVC, Cloud) PostgreSQL Event-driven architecture Microservices Nice to have: React Kafka GCP Kubernetes Client – why choose this particular client from the Jit portfolio? The client is a fintech institution operating in the Kingdom of Saudi Arabia, focused on modernising its digital capabilities and expanding its offering for micro-SME customers . It is an organisation with a strong market presence and a clear strategic commitment to innovation, aiming to deliver banking experiences that are fully digital, user-friendly, and deeply integrated with day-to-day business needs. 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. Wymagania Oczekujemy Oferujemy

🏢 Summary: Manual QA Engineer role in a greenfield fintech platform for the banking domain, focused on ensuring high quality of backend services and frontend applications within a cross-functional team. The position involves designing and executing comprehensive manual tests across web and mobile channels in a high-reliability financial environment. Hybrid work model with real impact on testing processes from project inception. 🗂️ Requirements: Commercial experience in manual software testing (mid-level), Experience in test case design and test planning, Experience with structured testing methodologies, Experience testing web applications, Experience testing mobile applications, Ability to test frontend (UI/UX) and backend (API, database) layers, Experience with functional, regression, integration and exploratory testing, Ability to create and maintain test documentation, Experience with defect reporting and tracking, Fluent English (spoken and written) 📃 Skills: ManualTesting, TestDesign, TestPlanning, FunctionalTesting, RegressionTesting, IntegrationTesting, ExploratoryTesting, API, REST, Postman, Swagger, JIRA, Confluence, SQL, MobileTesting, WebTesting 🏢 Description: Salary: 300 - 500 PLN/MD B2B Work model: e lastic hybrid (3 days per week from the office in Gdynia / Gdańsk / Warsaw / Rzeszów / Kraków) Why choose this offer? Opportunity to build a fintech platform from scratch (greenfield project) Real impact on architecture and core frontend services from day one Collaboration within a cross-functional, international team Work on a large-scale financial platform in the banking domain Project We are building a fintech platform from the ground up for a financial institution operating in the banking products space. As a QA Engineer , you will be embedded in a cross-functional squad, responsible for ensuring the quality of both backend services and frontend applications. This is a manual testing role - you will design test strategies, write test cases, execute tests, and work closely with developers and the Business Analyst to catch defects early and maintain a high quality bar. Quality expectations for this project are high. You will be testing financial products and services where correctness and reliability are critical. Responsibilities you'll have Design and execute manual test cases for backend services and frontend applications within your squad Develop and maintain test plans , test scenarios , and test documentation for assigned product areas Perform functional, regression, integration , and exploratory testing across web and mobile channels Collaborate with developers to understand implementation details and identify high-risk areas for testing Work with the Business Analyst to validate that delivered features meet acceptance criteria and business requirements Report, track , and verify defect resolution Maintain clear and actionable defect documentation Coordinate with the QA Lead on testing standards, processes, and cross-squad test coverage Communicate test status, risks , and quality metrics in English to the squad and stakeholders Expected competences and knowledge Solid commercial experience in manual software testing (mid-level proficiency expected) Experience with test case design, test planning , and structured testing methodologies Experience testing web applications and mobile applications Ability to test both frontend (UI/UX) and backend (API, database) layers Strong analytical skills and attention to detail - ability to identify edge cases and non-obvious defects Fluent English - ability to communicate freely in a professional setting (spoken and written) Nice to have Prior experience testing financial services or banking applications Familiarity with API testing tools (Postman, REST-assured, or similar) Basic understanding of Java/Spring backend stack and Flutter/React frontend stack Experience with test management tools (Jira, TestRail, Zephyr, or similar) Experience working in greenfield projects where testing processes need to be established from scratch Technologies you'll work with Postman Swagger REST API JIRA/Confluence SQL Client – why choose this particular client from the Jit portfolio? The client is a fintech institution operating in the Kingdom of Saudi Arabia, focused on modernising its digital capabilities and expanding its offering for micro-SME customers . It is an organisation with a strong market presence and a clear strategic commitment to innovation, aiming to deliver banking experiences that are fully digital, user-friendly, and deeply integrated with day-to-day business needs. 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. Wymagania Oczekujemy Oferujemy

🏢 Summary: Hybrid Delivery Manager role for a greenfield fintech platform in the banking domain, responsible for end-to-end delivery across multiple agile squads. The position focuses on coordinating large cross-functional teams, managing risks and dependencies, and ensuring timely delivery of a large-scale financial system. Offers real impact on processes and collaboration within an international environment. 🗂️ Requirements: Proven experience as Delivery Manager or Project Manager managing multiple agile teams, Experience delivering software projects with teams of 20+ members, Strong knowledge of agile methodologies, Experience in delivery planning, dependency management, and risk management, Ability to manage stakeholder reporting, Solid understanding of software development lifecycle, Fluent English (spoken and written), Availability to work hybrid, 3 days per week in office (Warsaw/Kraków/Rzeszów/Gdańsk) 📃 Skills: Agile, Scrum, SDLC, Java, Spring, Flutter, React 🏢 Description: Salary: 1300-1600 PLN/ MD (B2B) Work model: hybrid, 3 days per week in office (Warsaw/ Kraków/ Rzeszów/ Gdańsk) Why choose this offer? Opportunity to build a fintech platform from scratch (greenfield project) Real impact on architecture and core frontend services from day one Collaboration within a cross-functional, international team Work on a large-scale financial platform in the banking domain Project We are building a fintech platform from the ground up for a financial institution operating in the banking products space. Expected competences and knowledge: MUST HAVE Proven experience as a Delivery Manager, Project Manager, or similar role managing multiple agile teams simultaneously Experience managing delivery for software development projects with teams of 20+ people Strong understanding of agile methodologies and ability to adapt processes to team needs Experience with delivery planning, dependency management, risk management, and stakeholder reporting Ability to work effectively with technical teams; solid understanding of software development lifecycle, without necessarily being a developer Fluent English ; ability to communicate freely in a professional setting (spoken and written) Availability to work from the office 3 days per week in one of the following locations: Warsaw, Kraków, Tricity, or Rzeszów NICE TO HAVE Prior experience in the financial services or banking domain Experience with greenfield projects and team ramp-up / scaling Experience coordinating between technical and business stakeholders in a multi-squad setup Familiarity with Java/Spring or Flutter/React technology stacks Responsibilities you will have: Own end-to-end delivery across 3 cross-functional squads: planning, tracking, risk management, and reporting Coordinate squad-level work to manage cross-squad dependencies and ensure consistent progress toward project milestones Work with Tech Leads to resolve blockers, manage scope, and maintain realistic delivery timelines Collaborate with the Product Owner and Business Analysts to ensure requirements are clearly understood and properly prioritized Facilitate agile ceremonies and ensure effective team processes (sprint planning, retrospectives, demos) Manage the gradual team ramp-up: coordinate onboarding of new squad members as the team scales Provide regular delivery reports and status updates to project leadership (weekly cadence) Identify delivery risks early and implement mitigation plans Communicate effectively in English with all stakeholders, including technical teams and senior leadership Client – why choose this particular client from the Jit portfolio? The client is a fintech institution operating in the Kingdom of Saudi Arabia, focused on modernising its digital capabilities and expanding its offering for micro-SME customers . It is an organisation with a strong market presence and a clear strategic commitment to innovation, aiming to deliver banking experiences that are fully digital, user-friendly, and deeply integrated with day-to-day business needs. 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. Wymagania Oczekujemy Oferujemy

🏢 Summary: B2B Java Backend Developer role in a greenfield fintech project focused on building a large-scale, event-driven banking platform from scratch. The position involves designing and developing backend services and APIs using Spring within a microservices architecture. You will shape core architecture decisions while working in a cross-functional, international team. 🗂️ Requirements: Minimum 3 years commercial experience in Java backend development, Hands-on experience with Spring Boot, Spring MVC or Spring Cloud, Experience with event-driven architecture and asynchronous processing, Experience with relational databases and PostgreSQL, Ability to design database schemas and write SQL queries, Fluent English (spoken and written) 📃 Skills: Java, Spring, SpringBoot, SpringMVC, SpringCloud, PostgreSQL, SQL, Microservices, EventDriven, Kafka, GCP, Kubernetes 🏢 Description: Salary: 600-900 PLN/MD on B2B Work model: hybrid from Gdynia / Gdańsk / Warszawa / Rzeszów / Kraków (3 days per week from the office) Why choose this offer? Opportunity to build a fintech platform from scratch (greenfield project) Real impact on architecture and core backend services from day one Work in an event-driven, microservices-oriented environment Collaboration within a cross-functional, international team Work on a large-scale financial platform in the banking domain Project We are building a fintech platform from the ground up for a financial institution operating in the banking products space . As a Java Developer, you will be part of a cross-functional squad responsible for designing, developing, and delivering backend services for this greenfield product. You will work closely with your Tech Lead, Senior Developer, Business Analyst, and QA Engineer within a mixed frontend-backend squad. This is a unique opportunity to shape the architecture and codebase of a large-scale financial platform from day one, working in an event-driven, microservices-oriented environment. Responsibilities you'll have: Design, develop, and maintain backend services and APIs for the fintech platform in greenfield project Implement business logic in Java using the Spring framework within an event-driven architecture Work with Postgres databases - design schemas, write queries, and ensure data integrity Collaborate within a cross-functional squad (Tech Lead, Senior Developer, BA, QA, Frontend Developers) to deliver product increments Participate in code reviews, technical discussions, and architectural decisions within the squad Write clean, testable, and well-documented code following team standards and best practices Contribute to continuous improvement of development processes and tooling Communicate progress, blockers, and technical decisions in English to team members and stakeholders Expected competences and knowledge: Min. 3 years of commercial experience in Java backend development (mid-level proficiency expected) Hands-on experience with the Spring framework (Spring Boot, Spring MVC, or Spring Cloud) Experience with event-driven architecture (message brokers, asynchronous processing, event sourcing or similar patterns) Working knowledge of Postgres or comparable relational databases (schema design, SQL, migrations) Fluent English - the ability to communicate freely in a professional setting (spoken and written) Nice to have: Experience with Kafka or similar distributed messaging/streaming platforms Familiarity with Google Cloud Platform (GCP) services Experience with Kubernetes (K8s) and containerized deployments Prior experience working in the financial services or banking domain Experience building systems from scratch (greenfield projects) Technologies you'll work with Java Spring (Spring Boot, Spring MVC, Spring Cloud) PostgreSQL Event-driven architecture Nice to have: Kafka GCP Kubernetes Client – why choose this particular client from the Jit portfolio? The client is a fintech institution operating in the Kingdom of Saudi Arabia, focused on modernising its digital capabilities and expanding its offering for micro-SME customers. It is an organisation with a strong market presence and a clear strategic commitment to innovation, aiming to deliver banking experiences that are fully digital, user-friendly, and deeply integrated with day-to-day business needs. 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: Tech Lead role in a greenfield fintech platform within the banking domain, responsible for shaping architecture and leading a cross-functional team. The position combines hands-on Java development with architectural decision-making in a microservices, event-driven environment. You will drive backend technical direction while collaborating closely on frontend integrations. 🗂️ Requirements: 7+ years commercial software development experience, Proven experience in Tech Lead role, Strong hands-on experience with Java, Strong knowledge of Spring ecosystem (Spring Boot, Spring MVC, Spring Cloud), Experience with microservices architecture, Experience with event-driven architectures, Practical experience with PostgreSQL or other relational databases, Understanding of frontend architectures (React and/or Flutter), Very good knowledge of fullstack application architecture, Experience with distributed systems, Fluent English 📃 Skills: Java, Spring, SpringBoot, SpringMVC, SpringCloud, PostgreSQL, Microservices, EventDriven, React, Flutter, SQL, DistributedSystems 🏢 Description: Salary: 1300 - 1600 PLN/MD on B2B Remote: hybrid from Gdynia / Gdańsk / Warszawa / Rzeszów / Kraków (2 days per week from the office) Why choose this offer? Opportunity to build a fintech platform from scratch (greenfield project) Real impact on architecture and core frontend services from day one Collaboration within a cross-functional, international team Work on a large-scale financial platform in the banking domain Project We are building a new fintech platform from the ground up for a financial institution operating in the banking products space . As a Tech Lead , you will own the technical direction of a cross-functional squad (developers, QA Engineer, Business Analyst) and ensure high-quality delivery across both backend and frontend layers . This is a hands-on leadership role - you will split your time between coding, architectural decision-making, and mentoring the team. The project is fully greenfield, giving you the opportunity to shape architecture, development standards, and engineering culture from day one. Each Tech Lead works closely with a Delivery Manager (shared across several teams). Responsibilities you'll have: Lead a cross-functional team through the full delivery lifecycle Own the squad’s technical direction, primarily on the backend , with awareness of frontend implications Design and evolve system architecture in a microservices and event-driven environment Ensure high code quality through reviews, standards, and best practices Collaborate with the Delivery Manager and Business Analyst to translate business needs into technical solutions Align with other Tech Leads to ensure architectural consistency across teams Identify, communicate, and mitigate technical risks and dependencies Contribute hands-on to development on a regular basis Communicate technical decisions and trade-offs clearly in English Expected competences and knowledge Minimum 7+ years of commercial experience in software development Proven experience in a Tech Lead role Strong hands-on expertise in Java and the Spring ecosystem (Spring Boot, Spring MVC, Spring Cloud) Understanding of frontend and client-side architectures , with exposure to React and/or Flutter (ability to collaborate efficiently with frontend/mobile developers, review high-level solutions, understand integration points and trade-offs) Very good understanding of fullstack application architecture Experience with event-driven architectures (message brokers, asynchronous communication, events) Practical knowledge of PostgreSQL or similar relational databases Experience working with microservices and distributed systems Strong mentoring and technical leadership skills Fluent English (spoken and written) Nice to have: Hands-on or architectural experience with React and/or Flutter Experience with Kafka or similar messaging/streaming platforms Familiarity with Google Cloud Platform (GCP) Experience with Kubernetes and containerized deployments Background in fintech or banking projects Experience building and scaling greenfield systems Technologies you'll work with Java Spring (Boot, MVC, Cloud) PostgreSQL Microservices Event-driven architecture Nice to have: React Flutter Kafka GCP Kubernetes Client – why choose this particular client from the Jit portfolio? The client is a fintech institution operating in the Kingdom of Saudi Arabia, focused on modernising its digital capabilities and expanding its offering for micro-SME customers . It is an organisation with a strong market presence and a clear strategic commitment to innovation, aiming to deliver banking experiences that are fully digital, user-friendly, and deeply integrated with day-to-day business needs. 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. Wymagania Oczekujemy Oferujemy

🏢 Summary: B2B role for a senior Fullstack Developer to build a greenfield financial application (Structured Loan Manager / Covenant) in an Agile environment. The position involves developing backend and frontend features, ensuring high‑quality UI/UX, and delivering end‑to‑end tests in close collaboration with business stakeholders. Hybrid work model with strong focus on modern technologies and collaboration. 🗂️ Requirements: Minimum 6 years commercial experience with React, Minimum 5 years experience with JPA, Practical experience with Java and Spring Boot, Experience with Java 17+, Experience in Agile teams, Ability to design and implement UI/UX solutions, Experience with end-to-end testing, Experience breaking down requirements into user stories 📃 Skills: React, Java, SpringBoot, JPA, Java17, Agile, Selenium, Liquibase, Maven, Cucumber, E2E 🏢 Description: Salary: 1000 - 1300 PLN/MD 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 Structured Loan Manager / Covenant , developed by a Structured Finance team in Poland . The application is a greenfield project that is just starting. There is a close and dedicated business team responsible for delivering requirements. The team works in an Agile setup with a strong focus on collaboration and high communication. You will be involved in a financial project Structured Loan Manager / Covenant , developed by a Structured Finance team in Poland. The application is a greenfield project that is just starting. There is a close and dedicated business team responsible for delivering requirements. The team works in an Agile setup with a strong focus on collaboration, transparency, and high communication standards. As a developer, you will work on both backend and frontend development, taking responsibility not only for delivering high‑quality code but also for ensuring a strong user experience in the UI. The role also includes breaking down requirements into stories and delivering end‑to‑end tests . Responsibilities you'll have Developing backend and frontend features within a greenfield application Designing and implementing high-quality user experience in the UI Collaborating closely with the business team on breaking down requirements into stories Implementing application changes and improvements Preparing and executing end-to-end tests Actively participatin g in Agile ceremonies and team communication Expected competences and knowledge React minimum 6 years of commercial experience Practical knowledge of Java and Spring Boot Motivation and readiness to further develop Java and backend skills JPA - minimum 5 years of experience Experience working in Agile teams Nice to have: Selenium Liquibase (database versioning) Maven Cucumber (testing) Technologies you'll work with React Java 17+, Spring Boot, JPA End-to-end testing Maven, Liquibase 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: Frontend Tech Lead role focused on driving technical strategy and hands-on development of React-based web applications, with strong ownership of frontend architecture and AI-driven interfaces. The position combines leadership, product thinking, and close collaboration with design and product teams to deliver scalable, user-friendly solutions. You will shape frontend standards, mentor engineers, and lead integration of intelligent features into modern web platforms. 🗂️ Requirements: Strong hands-on experience with React, Expertise in JavaScript and TypeScript, Experience leading frontend architecture in production environments, Experience with state management solutions, Knowledge of responsive design and accessibility, Experience with frontend performance optimization, Familiarity with backend technologies and APIs, Experience with Git and collaborative workflows, Experience or strong interest in AI frameworks and AI-powered features, English proficiency at C1 level or higher 📃 Skills: React, JavaScript, TypeScript, Redux, ReactQuery, Zustand, ReactNative, Git, Java, AI 🏢 Description: Salary: 1200 - 1600 pln/md B2B Location: Warszawa/ Gdynia/ Kraków (elastic hybrid) Why choose this offer? Work with a top-tier international product company driving digital transformation in the infrastructure space Real ownership of the product, not just ticket delivery Scandinavian culture : autonomy, transparency, flexibility Direct influence on business direction and user-facing functionality Strategic, client-facing role: your voice matters Project As a Frontend Tech Lead , you'll drive the innovation and evolution of our frontend platform, working primarily with React and our web-based applications. You’ll play a key role in defining frontend technical strategy and architecture , while remaining hands-on with code. You'll work closely with the design and product teams to ensure complex construction workflows are intuitive and engaging for our users. This role combines strong frontend engineering expertise with technical leadership and product thinking . As the client expands their AI capabilities, you'll lead the frontend efforts in creating intelligent, user-friendly interfaces that make AI features accessible to construction professionals, while guiding the team toward scalable and maintainable solutions. What you'll be doing Drive frontend innovation and evolution of our React-based applications, setting technical direction for our user interfaces Champion user experience by creating intuitive, responsive interfaces that make complex construction workflows simple Act as a frontend technical leader , supporting and guiding engineers through code reviews, architectural discussions, and best practices Lead AI interface integration by designing and implementing user-friendly AI features and interactions Collaborate with design and product teams to translate user needs into exceptional frontend experiences Take ownership of frontend architecture decisions and ensure code quality and performance Navigate our technology landscape with focus on React , modern JavaScript , and frontend tooling Mentor and support Frontend Engineers in modern development techniques, frontend architecture, and AI-assisted programming Participate in technical planning and architectural decisions affecting the frontend platform Shape our frontend future by evaluating new technologies and proposing improvements to our development processes Expected competences and knowledge Problem-solving mindset : You enjoy tackling complex technical and architectural challenges Ownership mentality : You take responsibility not only for your work, but also for the overall frontend quality High agency : You proactively identify technical risks and opportunities and drive solutions forward Leadership mindset : You enjoy guiding others, sharing knowledge, and raising the technical bar of the team Growth orientation: You continuously learn and help others grow alongside you AI enthusiasm: You’re interested in leveraging AI to improve both user experience and developer productivity Strong communication skills : You clearly articulate technical decisions to engineers, product managers, and designers Product thinking : You care deeply about the impact of frontend solutions on users and the business Adaptability : You're comfortable working across the stack when needed and navigating evolving requirements Collaborative approach : You foster healthy team dynamics and constructive technical discussions English proficiency: C1 or higher – you communicate confidently in English in both technical and business contexts Technical Skills Strong, hands-on experience with React and modern frontend development Expertise in JavaScript, TypeScript, and modern frontend tooling Experience leading or owning frontend architecture in production environments Commercial experience with React Native (nice to have) Solid understanding of responsive design, accessibility, and cross-browser compatibility Experience with state management solutions (Redux, React Query, Zustand, etc.) Strong knowledge of frontend performance optimization and best practices Familiarity with backend technologies (Java) and APIs for effective full-stack collaboration Experience with version control systems (Git) and collaborative development workflows Familiarity with AI frameworks and tools, or strong interest in developing expertise in this area Experience with AI-assisted programming and implementing AI-powered features is a plus Client – why choose this particular client from the Jit portfolio? Our client is an innovative, international technology company operating in the proptech and construction tech sectors. Their mission is to make building projects more collaborative and efficient worldwide. They have created a modern cloud platform that enables effective management of project data throughout the entire building lifecycle – from planning and design, through construction, to maintenance. The company operates globally and collaborates with leading partners in the architecture, engineering, and construction industries. Its solutions are built on open standards , ensuring smooth integration with other tools and easy access to information for all project participants 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: 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.

🏢 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.