May 21, 2026

Senior Frontend Developer

Senior • Hybrid

18,000 - 25,000 PLN

Gdansk, Poland

Salary: 900-1200 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 building secure, high‑performance, and highly interactive web applications that support complex business workflows, real‑time data processing, and seamless user experiences. You’ll play a key role in shaping the frontend architecture, ensuring code quality, and driving technical excellence across the team.

 

Responsibilities you'll have

  • Architect and implement complex, interactive user interfaces and single‑page applications using TypeScript and JavaScript
  • Define and maintain best practices for frontend architecture, state management, and component reusability
  • Develop and maintain Web Components using Lit, ensuring modularity and long‑term maintainability
  • Optimize application performance, improve Core Web Vitals, and ensure smooth experiences across devices and browsers
  • Collaborate closely with backend engineers, UX/UI designers, and product managers to deliver end‑to‑end product features
  • Integrate with REST and GraphQL APIs, ensuring reliability, security, and consistency of data flows.
  • Conduct performance audits, code reviews, and mentor other developers
  • Contribute to CI/CD pipelines and deployment workflows (nice‑to‑have)
  • Participate in system design discussions and influence technical decisions across the product

 

Expected competences and knowledge

  • Strong expertise in HTML, CSS, JavaScript, TypeScript
  • Experience with Web Components and Lit
  • Solid understanding of Node.js and npm ecosystem
  • Experience writing unit tests with Vitest
  • Strong knowledge of frontend architecture, design patterns, and performance optimization
  • Ability to work with REST/GraphQL APIs
  • Experience in large‑scale, modular frontend codebases
  • Strong communication skills and ability to collaborate in cross‑functional teams

 

Technologies you'll work with


  • TypeScript, JavaScript
  • Web Components, Lit
  • HTML5, CSS3, Sass
  • Node.js, npm
  • Vitest, Playwright (optional)
  • REST, GraphQL
  • CI/CD tools (GitHub Actions, GitLab CI, or similar)
  • Kafka, MQ systems (nice‑to‑have)
  • NinjaFork (nice‑to‑have)

 

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.

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Warsaw, Poland

20,000 - 24,000 PLN

🏢 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.

Technology

Jit Team

Senior Test Automation Engineer with Python

Senior

Hybrid

Warsaw, Poland

100 - 137 PLN

🏢 Summary: Senior Test Automation Engineer role in a hybrid model, focused on API and UI testing within a Scrum team in an international financial environment. The position involves building and maintaining automated test suites using Python and Robot Framework, contributing to quality improvement initiatives. The offer includes flexible work organization and exposure to English in daily collaboration. 🗂️ Requirements: 5+ years of experience in test automation, Strong Python skills, Experience in RESTful API testing, Experience in UI testing, Practical expertise with Robot Framework, Familiarity with Jenkins, Familiarity with Git, Familiarity with Docker, Familiarity with Kubernetes, Knowledge of software testing processes (manual and automated), ISTQB Foundation Level knowledge or equivalent QA experience, Fluent written and spoken English 📃 Skills: Python, Robot, Framework, REST, API, UI, Jenkins, Git, Docker, Kubernetes, Scrum, DevOps, ISTQB 🏢 Description: Salary: 800-1100 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 Responsibilities you'll have Work closely within a Scrum team alongside developers, analysts, and stakeholders to ensure high-quality product delivery Test and validate RESTful APIs Test and validate UI of the Developer Portal Analyze requirements from a testing perspective Plan, design, and execute test cases Build and maintain automated test suites using Python and Robot Framework Prepare and deliver test reports and results Actively participate in testing team activities and contribute to quality improvement initiatives across the organization Expected competences and knowledge 5+ years of experience in test automation Strong Python skills for test automation development Proven experience in RESTful API testing Hands-on experience with UI testing Practical expertise with Robot Framework Familiarity with DevOps tools such as Jenkins, Git, Docker, Kubernetes (K8s) Understanding of software testing processes (manual and automated) ISTQB Foundation Level knowledge or equivalent practical QA experience Strong written and spoken communication skills in English Technologies you'll work with Python Robot Framework Jenkins Git Docker Kubernetes 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.

Technology

Jit Team

Senior Manual Tester

Senior

Hybrid

Gdynia, Poland

9,500 - 16,797 PLN

🏢 Summary: Senior QA role in a large-scale financial digital platform project, covering web and mobile applications integrated with multiple backend services and APIs. The position focuses on manual and API testing, quality assurance processes, and collaboration within distributed Agile teams to ensure high reliability and quality. Work is hybrid with strong emphasis on test transparency and continuous improvement. 🗂️ Requirements: 8+ years of experience in Quality Assurance, ISTQB Certification (Foundation or higher), Experience testing complex software systems, Experience in mobile application testing, Experience in system testing of web and mobile UI, Experience in API testing, Experience with test management tools (e.g. qTest), Experience working with Jira and Confluence 📃 Skills: QA, ISTQB, API, Postman, Swagger, qTest, Jira, Confluence, Agile, Scrum, Web, Mobile, Testing 🏢 Description: Salary: 500-800 PLN/day on B2B Work model: elastic hybrid from Gdynia or Gdańsk (at least 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 The project focuses on the development and maintenance of a large-scale digital platform supporting financial services used by millions of end users. The solution consists of modern web and mobile applications integrated with multiple backend services and APIs. The system operates in a complex ecosystem with numerous integrations and high quality and reliability requirements. The project is delivered by distributed Agile teams working in an international environment , with a strong focus on quality assurance, test transparency, and continuous improvement of testing practices. Responsibilities you'll have Ensure QA activities are conducted efficiently and properly documented in accordance with established quality standards Analyze requirements and design test cases and test scenarios Plan, execute, and monitor manual testing activities Report, track, verify, and manage defects throughout the development lifecycle Recommend appropriate actions based on test results and identified risks Identify test cases suitable for automation after manual verification Collaborate closely with the Scrum team to ensure high quality of delivered software Expected competences and knowledge 8+ years of professional experience in Quality Assurance ISTQB Certification (Foundation level or higher) Experience in defining, executing, and reporting tests for complex software systems Experience in mobile application testing Experience in system testing of modern Web and Mobile UI Strong experience in API testing using tools such as Postman or Swagger Experience with test management tools (preferably qTest or similar) Practical experience working with Jira and Confluence Strong attention to detail and problem-solving skills Ability to work effectively in an international and cross-functional environment Willingness to learn new tools, processes, and testing approaches 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.

Technology

Jit Team

Business Analyst

Mid

Hybrid

Gdansk, Poland

15,200 - 21,000 PLN/hr

🏢 Summary: Business Analyst role in a financial project within the accounts and payments domain, focused on translating business needs into scalable, compliant system solutions. The position involves close collaboration with stakeholders and development teams in an agile environment to deliver high-quality digital financial services. Hybrid work model with B2B contract. 🗂️ Requirements: 3+ years experience as Business Analyst, 3+ years experience in financial services (accounts/payments), Experience in analyzing and documenting functional and non-functional requirements, Experience in creating user stories and defining acceptance criteria, Experience participating in sprint planning and reviews, Ability to translate business needs into technical tasks, Experience working with multiple stakeholders, Strong analytical and problem-solving skills, Fluent English (written and spoken) 📃 Skills: BusinessAnalysis, FinancialServices, Accounts, Payments, RequirementsAnalysis, UserStories, AcceptanceCriteria, Agile, SprintPlanning, Documentation, English 🏢 Description: Salary: 800-1000 PLN/day on B2B Work model: hybrid from Gdynia / Gdańsk / Warszawa (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 building and enhancing solutions within the accounts and payments domain as a Business Analyst. The role centers on translating business needs into scalable and compliant system functionalities, supporting the delivery of high-quality digital financial services. You will work closely with stakeholders and development teams to analyze complex requirements, drive solution design, and ensure alignment between business objectives and technical implementation in an agile environment. Responsibilities you'll have Analyze and document functional and non-functional requirements Translate business needs into clear development tasks, user stories, and acceptance criteria Act as a bridge between business and technical teams to ensure seamless communication and delivery Collaborate with stakeholders to gather, clarify, and prioritize requirements Support development teams throughout the delivery lifecycle, including sprint planning and reviews Ensure proposed solutions align with business goals and technical possibilities Expected competences and knowledge 3+ years of experience in financial services (accounts/payments area) 3+ years of proven experience as a Business Analyst Strong ability to decompose complex business problems and design practical solutions within technical constraints Experience working with multiple stakeholders and driving alignment on requirements Ability to effectively communicate, refine, and document business requirements in collaboration with IT teams Hands-on experience with user stories creation, defining acceptance criteria , and participating in sprint planning and reviews Excellent analytical and problem-solving skills Fluent English (written and spoken) Nice to have Experience managing competing stakeholder priorities while ensuring compliance with regulatory timelines Proven ability to negotiate scope and timeline trade-offs between business expectations and technical constraints 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.