JavaScript / Vue.js Engineer

🏢 Summary: Long-term Backend Java Engineer role focused on developing and integrating backend services for insurance applications supporting claims handling and valuation management. The position involves Java and PostgreSQL development, REST API integrations, application modernization, and secure coding practices in a highly integrated environment. Hybrid work in Warsaw with opportunities to work on modern technologies in an international team. 🗂️ Requirements: Commercial experience with Java 8 backend development, Experience with PostgreSQL, Experience integrating systems via REST APIs, Knowledge of Apigee, Understanding of OWASP Top 10, Knowledge of secure coding practices 📃 Skills: Java, PostgreSQL, REST, Apigee, OWASP, AWS, Docker, Kubernetes, OCR 🏢 Description: About Webellian Webellian is a well-established Digital Transformation and IT consulting company committed to creating a positive impact for our clients. We strive to make a meaningful difference in diverse sectors such as insurance, banking, healthcare, retail, and manufacturing. Our passion for cutting-edge and disruptive technologies, as well as our shared values and strong principles, are what motivate us. We are a community of engineers and senior advisors who work with our clients across industries, playing a deep and meaningful role in accelerating and realizing their vision and strategy. About the position We are looking for an experienced Backend (Java) Engineer to join a long-term project in the insurance domain. The project brings together three interconnected applications into a unified ecosystem supporting claims handling, valuation management, and comparison of repair estimates with counter-offers. The role focuses on backend development in a highly integrated environment, where multiple systems communicate through APIs. You will contribute to the development and maintenance of backend services while ensuring seamless integration between applications. Key responsibilities: Develop and maintain backend solutions using Java and PostgreSQL. Implement and maintain integrations between multiple systems using APIs. Collaborate with cross-functional teams to deliver reliable and scalable solutions. Support the modernization of existing applications, including Java version upgrades. Apply secure coding practices throughout the software development lifecycle. Required Experience & Skills Must have Commercial experience with Java 8 backend development (experience in upgrading Java versions is a plus). Experience working with PostgreSQL. Experience integrating systems via REST APIs in a complex, interconnected environment. Knowledge of Apigee. Understanding of application security principles, including OWASP Top 10 and secure coding best practices. Nice to have Experience upgrading applications to newer Java versions. Experience with AWS. Experience with Docker and Kubernetes. Experience with AI-based OCR and document processing. What we offer Contract under Polish law: B2B or Umowa o Pracę Benefits such as private medical care, group insurance, Multisport card There are English classes available Hybrid work (at least 1 day/week on-site) in Warsaw (Mokotów) Opportunity to work with excellent professionals High standards of work and focus on the quality of code New technologies in use Continuously learning and growth International team Pinball, PlayStation & much more (on-site) Join a growing team of dedicated professionals! We love to pass on the knowledge to grow excellence, speak our minds without playing politics, and just enjoy hanging around together. If you share our passions - we want to meet you! So go ahead and apply ➡️

🏢 Summary: Fullstack Engineer role focused on developing back-office and client solutions using Node.js and React technologies in a collaborative international environment. The position involves analyzing business requirements, building scalable applications, writing clean code and technical documentation, and supporting junior team members. Hybrid work in Warsaw with opportunities to work on modern technologies and enterprise projects. 🗂️ Requirements: 3+ years of Fullstack development experience, Master’s degree in Software Engineering or related field, Strong knowledge of Node.js and React, Experience with related frontend and backend frameworks, Familiarity with REST API and GraphQL, Knowledge of SQL and NoSQL databases, Understanding of software architecture and development principles, Fluent English level B2 minimum, Excellent verbal communication skills 📃 Skills: Node.js, React, ReactNative, Next.js, Redux, TypeScript, Bootstrap, MaterialUI, Nest.js, Fastify, Express, AWS, Bitbucket, Git, Jenkins, PostgreSQL, Docker, REST, GraphQL, SQL, NoSQL, Strapi 🏢 Description: About the Webellian Webellian is a well-established Digital Transformation and IT consulting company committed to creating a positive impact for our clients. We strive to make a meaningful difference in diverse sectors such as insurance, banking, healthcare, retail, and manufacturing. Our passion for cutting-edge and disruptive technologies, as well as our shared values and strong principles, are what motivate us. We are a community of engineers and senior advisors who work with our clients across industries, playing a deep and meaningful role in accelerating and realizing their vision and strategy. About the opportunity We are seeking an experienced Fullstack Engineer (Node.js & React) to join our team and work on exciting projects for our key customers. In this role, you will have the opportunity to interface with our clients and drive the development of their solutions. For instance, you will join the team working on a back-office solution for a global insurance industry leader using Strapi and React. As a software engineer, you will be responsible for delivering high-quality projects by defining technical requirements based on business needs and deploying clean code. You won't need to reinvent the wheel as we value the power of reusing open-source frameworks and solutions. To be successful in this position, you must have at least 3 years of experience in Fullstack development, a deep understanding of Node.js, React and related frameworks , and experience in working collaboratively in a team environment. Join our team, work with us on challenging projects! Key responsibilities Analyzing business requirements Writing clean, functional code, including unit tests Writing technical documentation Propose technical improvements to the application Grow and nurture your junior colleagues' skills Supporting less experienced team members Competencies Master’s degree in Software Engineering or related engineering field Frontend Technologies: React, React Native, Next.js, Redux, Typescript, Bootstrap, Material UI Backend Technologies: Node.js, Nest.js, Fastify, Express Other Technologies: AWS, Bitbucket/GIT, Jenkins, PostgreSQL, Docker Familiarity with REST API and GraphQL Familiarity with SQL, NoSQL databases Deep understanding of software architecture and development principles Fluency in English is a must (min B2, C1 preferred) Excellent verbal communication skills are a must Can-do attitude Great attention to detail Independence and drive to grow and learn What we offer Contract under Polish law: B2B or Umowa o Pracę Benefits such as private medical care, group insurance, Multisport card There are English classes available Hybrid work (at least 3 days/week on-site) in Warsaw (Mokotów) Opportunity to work with excellent professionals High standards of work and focus on the quality of code New technologies in use Continuously learning and growth International team Pinball, PlayStation & much more (on-site 🤫) Join a growing team of dedicated professionals! We love to pass on the knowledge to grow excellence, speak our minds without playing politics, and just enjoy hanging around together. If you share our passions - we want to meet you! So go ahead and apply ➡️ Please include the following statement: I hereby authorize Webellian Poland Sp. z o.o. to the process personal data provided in this document for realising the recruitment process pursuant to the Personal Data Protection Act of 10 May 2018 (Journal of Laws 2018, item 1000) and in agreement with Regulation (EU) 2016/679 of the European Parliament and of the Council of 27 April 2016 on the protection of natural persons with regard to the processing of personal data and on the free movement of such data, and repealing Directive 95/46/EC (General Data Protection Regulation).

🏢 Summary: Senior Fullstack Engineer role focused on building and enhancing client solutions using Node.js and React technologies, including a back-office platform for a global insurance leader. The position involves fullstack development, technical analysis, clean code delivery, mentoring junior developers, and collaboration with international teams in a hybrid Warsaw-based environment. 🗂️ Requirements: 5+ years of Fullstack development experience, Master’s degree in Software Engineering or related field, Strong knowledge of Node.js and React, Experience with related frontend and backend frameworks, Experience writing unit tests and technical documentation, Understanding of software architecture and development principles, Familiarity with REST API and GraphQL, Knowledge of SQL and NoSQL databases, Fluent English level B2 minimum, Excellent verbal communication skills 📃 Skills: Node.js, React, ReactNative, Next.js, Redux, TypeScript, Bootstrap, MaterialUI, Nest.js, Fastify, Express, AWS, Bitbucket, Git, Jenkins, PostgreSQL, Docker, REST, GraphQL, SQL, NoSQL, Strapi 🏢 Description: About the Webellian Webellian is a well-established Digital Transformation and IT consulting company committed to creating a positive impact for our clients. We strive to make a meaningful difference in diverse sectors such as insurance, banking, healthcare, retail, and manufacturing. Our passion for cutting-edge and disruptive technologies, as well as our shared values and strong principles, are what motivate us. We are a community of engineers and senior advisors who work with our clients across industries, playing a deep and meaningful role in accelerating and realizing their vision and strategy. About the opportunity We are seeking an experienced Senior Fullstack Engineer (Node.js & React) to join our team and work on exciting projects for our key customers. In this role, you will have the opportunity to interface with our clients and drive the development of their solutions. For instance, you will join the team working on a back-office solution for a global insurance industry leader using Strapi and React. As a software engineer, you will be responsible for delivering high-quality projects by defining technical requirements based on business needs and deploying clean code. You won't need to reinvent the wheel as we value the power of reusing open-source frameworks and solutions. To be successful in this position, you must have at least 5 years of experience in Fullstack development, a deep understanding of Node.js, React and related frameworks , and experience in working collaboratively in a team environment. Join our team, work with us on challenging projects! Key responsibilities Analyzing business requirements Writing clean, functional code, including unit tests Writing technical documentation Propose technical improvements to the application Grow and nurture your junior colleagues' skills Supporting less experienced team members Competencies Master’s degree in Software Engineering or related engineering field Frontend Technologies: React, React Native, Next.js, Redux, Typescript, Bootstrap, Material UI Backend Technologies: Node.js, Nest.js, Fastify, Express Other Technologies: AWS, Bitbucket/GIT, Jenkins, PostgreSQL, Docker Familiarity with REST API and GraphQL Familiarity with SQL, NoSQL databases Deep understanding of software architecture and development principles Fluency in English is a must (min B2, C1 preferred) Excellent verbal communication skills are a must Can-do attitude Great attention to detail Independence and drive to grow and learn What we offer Contract under Polish law: B2B or Umowa o Pracę Benefits such as private medical care, group insurance, Multisport card There are English classes available Hybrid work (at least 3 days/week on-site) in Warsaw (Mokotów) Opportunity to work with excellent professionals High standards of work and focus on the quality of code New technologies in use Continuously learning and growth International team Pinball, PlayStation & much more (on-site 🤫) Join a growing team of dedicated professionals! We love to pass on the knowledge to grow excellence, speak our minds without playing politics, and just enjoy hanging around together. If you share our passions - we want to meet you! So go ahead and apply ➡️ Please include the following statement: I hereby authorize Webellian Poland Sp. z o.o. to the process personal data provided in this document for realising the recruitment process pursuant to the Personal Data Protection Act of 10 May 2018 (Journal of Laws 2018, item 1000) and in agreement with Regulation (EU) 2016/679 of the European Parliament and of the Council of 27 April 2016 on the protection of natural persons with regard to the processing of personal data and on the free movement of such data, and repealing Directive 95/46/EC (General Data Protection Regulation).

🏢 Summary: Senior Frontend Developer role focused on building AI-enabled web and iOS applications using React and Swift technologies. The position involves leading frontend architecture, performance optimization, testing strategies, and CI/CD integration while collaborating with cross-functional teams. Hybrid work in Warsaw with opportunities to work on modern technologies in an international environment. 🗂️ Requirements: 6+ years of frontend development experience, Expert-level JavaScript, Expert-level TypeScript, Expert-level React, Experience with Redux Toolkit or Zustand, Strong native iOS development with Swift, Experience with SwiftUI, Experience integrating REST APIs, Knowledge of OAuth2 and JWT authentication, Strong CSS and responsive design skills, Experience with Vite or Webpack, Hands-on experience with Claude Code, Experience with frontend testing frameworks, Ability to define frontend architecture and technical standards, Experience with CI/CD pipelines, Strong communication and collaboration skills 📃 Skills: JavaScript, TypeScript, React, Redux, Zustand, Swift, SwiftUI, UIKit, REST, OAuth2, JWT, CSS, Tailwind, StyledComponents, Emotion, Vite, Webpack, Jest, Vitest, Playwright, Cypress, XCTest, Fastlane, Xcode, CI/CD, SSR, CSR, ISR, WCAG 🏢 Description: About Webellian Webellian is a well-established Digital Transformation and IT consulting company committed to creating a positive impact for our clients. We strive to make a meaningful difference in diverse sectors such as insurance, banking, healthcare, retail, and manufacturing. Our passion for cutting-edge and disruptive technologies, as well as our shared values and strong principles, are what motivate us. We are a community of engineers and senior advisors who work with our clients across industries, playing a deep and meaningful role in accelerating and realizing their vision and strategy. About the position As a Senior Frontend Developer within Advanced Analytics, you will lead the design and development of user-facing AI-enabled products across web and mobile platforms. You will own the frontend layer of production applications — building sophisticated React-based web interfaces and native iOS mobile experiences that bring AI capabilities directly to end users across the globe. Key responsibilities: Architect and build production-grade React web applications: component design, state management, routing, performance optimization, and accessibility (WCAG compliance). Develop native iOS applications using Swift and SwiftUI (or UIKit where required), delivering high-quality, App Store-ready mobile experiences. Define and enforce frontend architecture standards: folder structure, component libraries, design system integration, and code quality conventions across web and mobile. Integrate frontend applications with REST APIs and event-driven backends, handling authentication flows, error boundaries, loading states, and real-time data patterns. Implement robust frontend testing strategies: unit tests (Jest, Vitest), component tests (React Testing Library), end-to-end tests (Playwright or Cypress), and iOS XCTest suites. Lead frontend performance engineering: bundle optimization, lazy loading, rendering strategies (SSR, CSR, ISR), Core Web Vitals, and iOS app performance profiling. Own the mobile development lifecycle on iOS: from Xcode project configuration and provisioning profiles to TestFlight distribution and App Store submission. Collaborate with UX Designers to translate designs into pixel-perfect, responsive, and accessible interfaces on both web and iOS. Champion AI-augmented development workflows using Claude Code: apply it actively for prototyping, code review, refactoring, and documentation generation. Conduct thorough code reviews, contribute to architectural decision records (ADRs), and mentor junior and mid-level frontend engineers. Work with DevOps to integrate frontend build and deployment into CI/CD pipelines: web app deployments, iOS build automation (Fastlane), and release management. Required Experience & Skills 6+ years of professional frontend development experience, with a strong track record of shipping production applications at scale. Expert-level JavaScript and TypeScript: deep understanding of the language, async patterns, module systems, and type-safe application design. Expert-level React: hooks, context, state management (Redux Toolkit, Zustand, or equivalent), performance patterns, and large-scale component architecture. Strong native iOS development skills using Swift and SwiftUI; experience with UIKit is a plus. Solid experience with iOS-specific concerns: push notifications, background processing, Keychain, deep linking, and App Store review guidelines. Experience consuming and designing frontend integrations with REST APIs, including authentication (OAuth2, JWT), error handling, and data caching strategies. Strong CSS and layout skills: responsive design, CSS-in-JS (Styled Components, Emotion), or utility-first frameworks (Tailwind CSS). Experience with frontend build tooling: Vite, Webpack, or equivalent; understanding of bundling, tree-shaking, and deployment optimization. Hands-on proficiency with Claude Code: using it daily for development, debugging, refactoring, and documentation tasks. Proven ability to define architecture, set standards, and lead technical decisions in a senior individual contributor or tech lead capacity. Strong communication skills: able to collaborate effectively with designers, product managers, and backend engineers across global, distributed teams. What we offer Contract under Polish law: B2B or Umowa o Pracę Benefits such as private medical care, group insurance, Multisport card English classes available Hybrid work (at least 1 day/week on-site) in Warsaw (Mokotów) Opportunity to work with excellent professionals High standards of work and focus on the quality of code New technologies in use Continuously learning and growth International team Pinball, PlayStation & much more (on-site) Join a growing team of dedicated professionals! We love to pass on the knowledge to grow excellence, speak our minds without playing politics, and just enjoy hanging around together. If you share our passions - we want to meet you! So go ahead and apply ➡️

🏢 Summary: Senior Frontend Developer role focused on leading the architecture and development of AI-enabled web and iOS applications, owning the full frontend layer from design to production. The position involves building scalable React applications and native iOS apps, integrating with backend services, and driving performance, testing, and CI/CD standards. The role combines hands-on development with architectural leadership and mentoring responsibilities. 🗂️ Requirements: 6+ years of professional frontend development experience, Expert-level JavaScript and TypeScript, Expert-level React including hooks and state management, Strong native iOS development experience with Swift and SwiftUI, Experience integrating frontend applications with REST APIs, Knowledge of OAuth2 and JWT authentication mechanisms, Experience with frontend testing frameworks, Experience with frontend build tools, Ability to define frontend architecture and technical standards, Experience working with CI/CD pipelines 📃 Skills: JavaScript, TypeScript, React, Redux, Zustand, Swift, SwiftUI, UIKit, REST, OAuth2, JWT, CSS, Tailwind, StyledComponents, Emotion, Vite, Webpack, Jest, Vitest, Playwright, Cypress, XCTest, Fastlane, Xcode, Claude, CI/CD 🏢 Description: About Webellian Webellian is a well-established Digital Transformation and IT consulting company committed to creating a positive impact for our clients. We strive to make a meaningful difference in diverse sectors such as insurance, banking, healthcare, retail, and manufacturing. Our passion for cutting-edge and disruptive technologies, as well as our shared values and strong principles, are what motivate us. We are a community of engineers and senior advisors who work with our clients across industries, playing a deep and meaningful role in accelerating and realizing their vision and strategy. About the position As a Senior Frontend Developer within Advanced Analytics, you will lead the design and development of user-facing AI-enabled products across web and mobile platforms. You will own the frontend layer of production applications — building sophisticated React-based web interfaces and native iOS mobile experiences that bring AI capabilities directly to end users across the globe. Key responsibilities: Architect and build production-grade React web applications: component design, state management, routing, performance optimization, and accessibility (WCAG compliance). Develop native iOS applications using Swift and SwiftUI (or UIKit where required), delivering high-quality, App Store-ready mobile experiences. Define and enforce frontend architecture standards: folder structure, component libraries, design system integration, and code quality conventions across web and mobile. Integrate frontend applications with REST APIs and event-driven backends, handling authentication flows, error boundaries, loading states, and real-time data patterns. Implement robust frontend testing strategies: unit tests (Jest, Vitest), component tests (React Testing Library), end-to-end tests (Playwright or Cypress), and iOS XCTest suites. Lead frontend performance engineering: bundle optimization, lazy loading, rendering strategies (SSR, CSR, ISR), Core Web Vitals, and iOS app performance profiling. Own the mobile development lifecycle on iOS: from Xcode project configuration and provisioning profiles to TestFlight distribution and App Store submission. Collaborate with UX Designers to translate designs into pixel-perfect, responsive, and accessible interfaces on both web and iOS. Champion AI-augmented development workflows using Claude Code: apply it actively for prototyping, code review, refactoring, and documentation generation. Conduct thorough code reviews, contribute to architectural decision records (ADRs), and mentor junior and mid-level frontend engineers. Work with DevOps to integrate frontend build and deployment into CI/CD pipelines: web app deployments, iOS build automation (Fastlane), and release management. Required Experience & Skills 6+ years of professional frontend development experience, with a strong track record of shipping production applications at scale. Expert-level JavaScript and TypeScript: deep understanding of the language, async patterns, module systems, and type-safe application design. Expert-level React: hooks, context, state management (Redux Toolkit, Zustand, or equivalent), performance patterns, and large-scale component architecture. Strong native iOS development skills using Swift and SwiftUI; experience with UIKit is a plus. Solid experience with iOS-specific concerns: push notifications, background processing, Keychain, deep linking, and App Store review guidelines. Experience consuming and designing frontend integrations with REST APIs, including authentication (OAuth2, JWT), error handling, and data caching strategies. Strong CSS and layout skills: responsive design, CSS-in-JS (Styled Components, Emotion), or utility-first frameworks (Tailwind CSS). Experience with frontend build tooling: Vite, Webpack, or equivalent; understanding of bundling, tree-shaking, and deployment optimization. Hands-on proficiency with Claude Code: using it daily for development, debugging, refactoring, and documentation tasks. Proven ability to define architecture, set standards, and lead technical decisions in a senior individual contributor or tech lead capacity. Strong communication skills: able to collaborate effectively with designers, product managers, and backend engineers across global, distributed teams. What we offer Contract under Polish law: B2B or Umowa o Pracę Benefits such as private medical care, group insurance, Multisport card English classes available Hybrid work (at least 1 day/week on-site) in Warsaw (Mokotów) Opportunity to work with excellent professionals High standards of work and focus on the quality of code New technologies in use Continuously learning and growth International team Pinball, PlayStation & much more (on-site) Join a growing team of dedicated professionals! We love to pass on the knowledge to grow excellence, speak our minds without playing politics, and just enjoy hanging around together. If you share our passions - we want to meet you! So go ahead and apply ➡️

🏢 Summary: Full Stack Engineer role focused on building scalable distributed applications using Java and modern frontend technologies in an agile environment. The position involves backend and frontend development, microservices, testing, and collaboration with cross-functional teams in a hybrid work model in Warsaw. 🗂️ Requirements: Proven experience as a Full Stack Engineer, Strong experience with Java, Strong experience with Spring, Strong experience with Kafka, Strong understanding of TypeScript, Strong understanding of Angular, Experience with databases, Experience with distributed systems, Solid understanding of microservice architecture, Experience writing unit tests, Experience writing integration tests, Ability to work in agile delivery environments, Strong communication skills 📃 Skills: Java, Spring, Kafka, TypeScript, Angular, SQL, Microservices, Docker, Kubernetes, OpenAPI, Swagger, Atlas, DevOps, AI, MachineLearning 🏢 Description: About Webellian Webellian is a well-established Digital Transformation and IT consulting company committed to creating a positive impact for our clients. We strive to make a meaningful difference in diverse sectors such as insurance, banking, healthcare, retail, and manufacturing. Our passion for cutting-edge and disruptive technologies, as well as our shared values and strong principles, are what motivate us. We are a community of engineers and senior advisors who work with our clients across industries, playing a deep and meaningful role in accelerating and realizing their vision and strategy. About the position We are seeking a motivated and experienced Full Stack Engineer with a strong background in Java and distributed systems to join our dynamic team. The ideal candidates will have extensive expertise in developing scalable and maintainable applications in agile-based delivery environments, with a proactive approach to problem-solving. Key responsibilities: Design, develop, and maintain applications in a complex and interconnected environment. Participate in code reviews and contribute to a culture of continuous improvement. Analyze existing business logic and data structures across several systems. Collaborate with cross-functional teams to refine, design, and develop new features. Troubleshoot and resolve complex technical issues. Required Experience & Skills Proven experience as a Full Stack Engineer Ability to learn quickly and adapt to new technologies and methodologies. Strong communication skills. Strong experience with backend technologies (Java, Spring, Kafka). Strong understanding of front-end technologies (TypeScript, Angular). Experience with databases and distributed systems. Solid understanding of microservice architecture. Strong testing background and experience writing unit- and integration tests. Preferred Qualifications Familiarity with containerization and orchestration tools (e.g., Docker, Kubernetes). DevOps experience. Knowledge of Atlas or similar database migration tools. Familiarity with OpenAPI/Swagger specifications and code generation. Knowledge of AI and machine learning concepts. What we offer Contract under Polish law: B2B or Umowa o Pracę Benefits such as private medical care, group insurance, Multisport card There are English classes available Hybrid work (at least 1 day/week on-site) in Warsaw (Mokotów) Opportunity to work with excellent professionals High standards of work and focus on the quality of code New technologies in use Continuously learning and growth International team Pinball, PlayStation & much more (on-site) Join a growing team of dedicated professionals! We love to pass on the knowledge to grow excellence, speak our minds without playing politics, and just enjoy hanging around together. If you share our passions - we want to meet you! So go ahead and apply ➡️

🏢 Summary: 6-month internship for a Quality Assurance Engineer supporting an insurance industry project, focused on ensuring software quality through manual testing and defect reporting. The role involves creating and executing test cases, identifying bugs, and collaborating closely with developers in an Agile environment. It is suited for students in technical fields who want to grow their QA skills using modern tools and methodologies. 🗂️ Requirements: Enrollment in Bachelor’s or Master’s degree in Computer Science or related field, Solid understanding of software testing concepts and methodologies, Basic knowledge of Postman, Basic knowledge of Cypress, Basic knowledge of Jira, Basic knowledge of Confluence, Good English communication skills (B2+), Understanding of bug tracking systems, Familiarity with Agile/Scrum methodologies 📃 Skills: Postman, Cypress, Jira, Confluence, Agile, Scrum, Testing, QA, ManualTesting, BugTracking 🏢 Description: About Webellian Webellian is a well-established Digital Transformation and IT consulting company committed to creating a positive impact for our clients. We strive to make a meaningful difference in diverse sectors such as insurance, banking, healthcare, retail, and manufacturing. Our passion for cutting-edge and disruptive technologies, as well as our shared values and strong principles, are what motivate us. We are a community of engineers and senior advisors who work with our clients across industries, playing a deep and meaningful role in accelerating and realizing their vision and strategy. About the position We are seeking an intern Quality Assurance Engineer to join our team for a project with a vital insurance industry client. The intern will help the team to ensure that the final product meets the client's specified quality standards and requirements. You will help them to identify and report any bugs or glitches in a timely and effective manner. This role requires an individual with a strong attention to detail and exceptional communication abilities. Requirements Being enrolled in a Bachelor or Master degree in computer science or a related technical field Good english communication skills (B2+), Polish language is a plus. Solid understanding of software testing concepts and methodologies Basic knowledge of Tools: Postman, Cypress (experience with additional languages is considered an asset) Basic knowledge of Jira/Confluence Analytical skills Attention to detail and accuracy Сritical thinking Independence and drive to grow and learn Some experience in software development will be considered as an additional asset Familiarity with bug tracking systems and test management tools is a plus Experience with Agile/Scrum methodologies is a plus Excellent verbal communication skills are a must *As an intern, you’re not expected to be an expert. What is really important is your will and ability to expand your skills during the internship and contribute actively to the company. Key responsibilities Collaborate with the development team to understand product requirements and specifications Create and execute test cases to verify the functionality and performance of our software products Conduct manual testing to identify and document defects, bugs, and inconsistencies Assist in maintaining and updating test documentation, including test plans and test reports Collaborate with developers to reproduce and troubleshoot reported issues Participate in regression testing to ensure the stability of our software releases Provide feedback and suggestions to improve the overall quality of our products What we offer: 6 month internship Opportunity to work with excellent professionals, in a professional and friendly environment High standards of work and focus on the quality of code New technologies in use Continuously learning and growth International team Pinball, PlayStation & much more (on-site) About you: Open-minded and eager to learn Autonomous and not afraid to ask questions Business oriented and looking to bring solutions Capable of detailed and analytical thinking Ready to take responsibilities and have an impact on companies’ projects BE BOLD In your CV, please include the following information: Why would you like to join us? Do you have something to share with us? (portfolio, projects, ideas, …)

🏢 Summary: 6-month Fullstack Software Engineer Internship focused on reviving and improving an existing web application using JavaScript and Java. The role involves contributing to frontend and backend development while following SDLC standards and best practices. Interns collaborate with senior engineers and gain hands-on experience with structured development processes. 🗂️ Requirements: Enrolled in Bachelor or Master degree in Computer Science or related field, Basic knowledge of JavaScript, Basic knowledge of Java and object-oriented programming, Understanding of web application architecture, Familiarity with Git and version control, Basic understanding of SDLC concepts, English proficiency B2+, Willingness to follow defined development processes 📃 Skills: JavaScript, Java, Git, SDLC, Agile, Scrum, OOP, APIs, Frontend, Backend 🏢 Description: About Webellian Webellian is a well-established Digital Transformation and IT consulting company committed to creating a positive impact for our clients. We strive to make a meaningful difference in diverse sectors such as insurance, banking, healthcare, retail, and manufacturing. Our passion for cutting-edge and disruptive technologies, as well as our shared values and strong principles, are what motivate us. We are a community of engineers and senior advisors who work with our clients across industries, playing a deep and meaningful role in accelerating and realizing their vision and strategy. About the position We are seeking a Fullstack Software Engineer Intern to join our team for an internal project. The main mission of the internship will be to help revive and improve an existing application while following our internal Software Development Life Cycle (SDLC) standards and best practices. The intern will work with both JavaScript and Java, contributing to frontend and backend development. At the same time, this role has an important learning and feedback aspect: by working on a real, living system, you will help us verify whether our development procedures, documentation, and guidelines are clear, usable, and effective in practice. This role is ideal for a young, motivated fullstack developer who wants to learn how software should be built “by the book” — where processes are meant to guide and support engineers, not require expert-level project management skills to understand. Key Responsibilities Contribute to frontend and backend development using JavaScript and Java Help restore, improve, and extend the existing application Follow internal SDLC guidelines, development procedures, and documentation Provide feedback on the clarity and usability of development processes and documentation Collaborate with senior engineers to understand best practices and architectural decisions Assist in debugging, fixing issues, and improving code quality Participate in code reviews and knowledge-sharing sessions Help identify gaps or unclear areas in development procedures and suggest improvements Requirements: Being enrolled in a Bachelor or Master degree in computer science, software engineering, or a related technical field Good English communication skills (B2+), Polish language is a plus Basic knowledge of JavaScript (frontend or backend) Basic knowledge of Java and object-oriented programming Basic understanding of web application architecture (frontend, backend, APIs) Familiarity with Git and version control systems Basic understanding of software development life cycle (SDLC) concepts Willingness to follow defined processes, guidelines, and documentation Analytical mindset and attention to detail Curiosity and willingness to ask questions and learn Independence and drive to grow as a software engineer Any academic, personal, or internship experience with fullstack development is considered an asset Familiarity with Agile/Scrum methodologies is a plus *As an intern, you’re not expected to be an expert. What is really important is your will and ability to expand your skills during the internship and contribute actively to the company. What we offer: 6 month internship Opportunity to work with excellent professionals, in a professional and friendly environment High standards of work and focus on the quality of code New technologies in use Continuously learning and growth International team Pinball, PlayStation & much more (on-site) About you: Open-minded and eager to learn Autonomous and not afraid to ask questions Business oriented and looking to bring solutions Capable of detailed and analytical thinking Ready to take responsibilities and have an impact on companies’ projects BE BOLD In your CV, please include the following information: Why would you like to join us? Do you have something to share with us? (portfolio, projects, ideas, …)

🏢 Summary: Senior Java Backend Engineer role focused on building and operating production-grade, AI-enabled backend services within a global Advanced Analytics team. The position involves designing cloud-native microservices, standardizing APIs, and ensuring security, observability, and reliability in regulated environments. You will work cross-functionally and take end-to-end ownership from design to operations. 🗂️ Requirements: Proficiency in Java 17+, Experience with REST and SOAP APIs, Strong knowledge of JSON, YAML, XML, Experience with Docker and Kubernetes, Hands-on experience with AWS, Proficiency with SQL databases (DB2, PostgreSQL), Experience with Git and GitHub, Familiarity with CI/CD tools (Jenkins or GitHubActions or Nexus), Knowledge of Keycloak for authentication and authorization, Experience with Dynatrace or monitoring tools, Understanding of microservices architecture, Basic knowledge of AI technologies 📃 Skills: Java, REST, SOAP, JSON, YAML, XML, Git, GitHub, Docker, SQL, DB2, PostgreSQL, Maven, Kubernetes, AWS, Jenkins, GitHubActions, Nexus, Keycloak, Dynatrace, A3K, Airwave, CISL, Jira, Confluence, Copilot, Claude, AI 🏢 Description: About Webellian Webellian is a well-established Digital Transformation and IT consulting company committed to creating a positive impact for our clients. We strive to make a meaningful difference in diverse sectors such as insurance, banking, healthcare, retail, and manufacturing. Our passion for cutting-edge and disruptive technologies, as well as our shared values and strong principles, are what motivate us. We are a community of engineers and senior advisors who work with our clients across industries, playing a deep and meaningful role in accelerating and realizing their vision and strategy. About the position As a Senior Java Backend Engineer within Advanced Analytics in the Chief Data & AI Office, you will join the central AI team to build and maintain robust, production-grade AI-enabled services on a global scale. You will work in a cross-functional environment with ML Engineers, Platform Engineers, AI Architects, and DevOps, taking end-to-end ownership from design through reliable operations. In this role, you will help establish consistent engineering standards for security, observability, and delivery, and contribute to scalable internal platforms and shared services that accelerate teams worldwide. Key responsibilities Design, build, and maintain Java microservices forming the API layer: clean REST interfaces, robust domain models, and maintainable data access patterns using JPA/Hibernate or equivalent. Wrap and expose existing enterprise systems through well-defined service boundaries, enabling incremental modernization without wholesale replacement. Deliver cloud-native services using Docker and Kubernetes (AKS), with attention to scalability, resilience, and cost-efficiency. Build and maintain CI/CD pipelines with automated tests, quality gates, and secure delivery practices using GitHub Actions. Integrate and standardize API exposure via Azure API Management (APIM): usage policies, throttling, authentication/authorization, and versioning. Establish and maintain observability standards using Azure Monitor and Application Insights: dashboards, alerting, distributed tracing, and runbooks. Diagnose and resolve complex issues across microservices, clusters, and pipelines; perform root-cause analysis and preventative improvements. Embed security and resilience: secrets management via Azure Key Vault, least privilege, container security best practices, and disaster recovery patterns. Engineer for regulated environments: audit-friendly practices, traceable changes, reliable logging, and disciplined handling of sensitive data (minimization, access controls, retention). Collaborate with Python/AI engineers to define clear integration contracts between the Java API layer and the Python AI layer. Required Experience & Skills 5+ years professional backend engineering experience with Java in production environments. Expert-level Java; ideally Spring Boot (primary candidate) with real-world experience; familiarity with Quarkus or Micronaut is a plus. Strong engineering fundamentals: testing strategies (unit, integration, contract), REST API versioning, documentation, code quality, and pragmatic system design. Production experience with Docker and Kubernetes. Strong CI/CD experience (GitHub Actions preferred; ArgoCD or similar also relevant). Familiarity with Azure cloud platforms and services, particularly AKS, ACR, Key Vault, Azure Monitor/Application Insights, and Azure API Management (APIM). Strong experience with PostgreSQL including schema design, migrations (Flyway/Liquibase), and performance tuning fundamentals. Experience integrating with or wrapping legacy enterprise systems via REST, SOAP, or messaging. Familiarity with distributed systems and event-driven architectures using Kafka. Strong troubleshooting skills and an operational mindset. Ways of Working Comfortable in agile, iterative delivery environments with ownership and accountability. Clear communicator and collaborator across global, cross-functional stakeholders. Proactive learner with pragmatic adoption of AI-assisted developer tools (e.g., GitHub Copilot, Claude Code) to improve developer experience and delivery velocity. What we offer Contract under Polish law: B2B or Umowa o Pracę Benefits such as private medical care, group insurance, Multisport card English classes available Hybrid work (at least 1 day/week on-site) in Warsaw (Mokotów) Opportunity to work with excellent professionals High standards of work and focus on the quality of code New technologies in use Continuously learning and growth International team Pinball, PlayStation & much more (on-site) Join a growing team of dedicated professionals! We love to pass on the knowledge to grow excellence, speak our minds without playing politics, and just enjoy hanging around together. If you share our passions - we want to meet you! So go ahead and apply ➡️

🏢 Summary: Full Stack Technical Lead role focused on leading an engineering team delivering cloud-native digital insurance products. The position combines hands-on backend and frontend development with ownership of application architecture, API design, and technical standards. You will drive technical direction, ensure delivery quality, and collaborate closely with product, platform engineering, and business stakeholders. 🗂️ Requirements: 7+ years professional software engineering experience, Minimum 2 years in a technical leadership role, Strong backend development experience in Java and Spring Boot or equivalent, Frontend development experience in React or equivalent, Experience designing microservices architectures and REST APIs at production scale, Understanding of distributed system patterns, Experience designing services for Kubernetes environments, Familiarity with CI/CD and GitOps deployment models, Experience leading Agile sprint delivery and technical scoping, Experience in regulated industries such as insurance, finance, or healthcare 📃 Skills: Java, Spring, SpringBoot, React, Microservices, REST, Kubernetes, CI/CD, GitOps, Kafka, Azure, API, Docker 🏢 Description: About Webellian Webellian is a well-established Digital Transformation and IT consulting company committed to creating a positive impact for our clients. We strive to make a meaningful difference in diverse sectors such as insurance, banking, healthcare, retail, and manufacturing. Our passion for cutting-edge and disruptive technologies, as well as our shared values and strong principles, are what motivate us. We are a community of engineers and senior advisors who work with our clients across industries, playing a deep and meaningful role in accelerating and realizing their vision and strategy. About the position As a Full Stack Technical Lead you will lead an engineering team building digital insurance products and services. You are the technical authority for your team: you own the application architecture, set the engineering standards, and are responsible for the quality of everything the team ships. You will work within a cloud-native engineering environment where CI/CD pipelines, containerisation standards, and deployment tooling are provided centrally. Your role is to lead the application layer (service design, API architecture, and team delivery), not to own infrastructure. You are the primary technical interface between your product team and the central platform engineering function, and between engineering and the wider product and business stakeholders. This is a hands-on technical leadership role. You will be expected to remain close to the code while carrying the responsibility for the team's technical direction and delivery quality. Key responsibilities: Architecture and Technical Direction Own the application architecture for your product: service decomposition, API design, data models, event schemas, and integration patterns with core insurance systems. Make architectural decisions that are durable, well-reasoned, and clearly communicated to the team and stakeholders. Identify and manage technical debt: prioritise pragmatically, document trade-offs, and schedule remediation in delivery planning. Define technical standards for the team (coding conventions, testing practices, API versioning, observability instrumentation) and hold the team to them. Work within the deployment and containerisation standards provided by the central engineering platform; raise and influence changes to those standards through the appropriate channels. Delivery Leadership Translate business and product requirements into technical designs; lead estimation and scope definition. Identify and communicate technical risk early; propose mitigations and make trade-offs transparent to the Product Owner. Collaborate with the Product Owner on sprint planning to ensure technical work is appropriately sized, dependency-mapped, and sequenced. Represent engineering in architecture reviews, sprint reviews, and stakeholder discussions. Interface with the central platform engineering team on technical questions, onboarding requirements, and issue escalations. Team and Code Quality Own the code review process: set the bar, lead by example, and ensure reviews are substantive and timely. Mentor mid-level and senior engineers: support their technical growth through pairing, design discussion, and structured feedback. Build a team culture of ownership, quality, and continuous improvement; facilitate retrospective follow-through on engineering practices. Onboard new engineers to the codebase, standards, and ways of working. Collaboration Collaborate with frontend Tech Leads and other domain teams on cross-cutting API contracts and shared integration points. Work with the Product Owner on roadmap planning: provide clear technical input on feasibility, effort, and sequencing. Communicate clearly across technical and non-technical stakeholders; translate engineering complexity into business-relevant language. Required Experience & Skills 7+ years of professional software engineering experience, with at least 2 years in a technical leadership role (Tech Lead, Principal Engineer, or equivalent). Deep backend development experience: Java (Spring Boot) or equivalent, able to review, design and contribute to production code. Frontend experience: React or equivalent, able to review and contribute to production code. Capable of participating meaningfully in cross-functional technical discussions spanning frontend, BFF, and backend layers. Microservices architecture: service boundary design, API design and versioning, distributed system patterns (eventual consistency, idempotency, retry strategies). REST API design at production scale: resource modelling, contract versioning, backward compatibility, error handling conventions. Kubernetes-aware service design: designing services to run well in Kubernetes (readiness/liveness probes, graceful shutdown, resource requests, horizontal scaling). You do not need to operate the cluster. CI/CD and GitOps familiarity: understanding of pipeline-based and pull-based deployment models; able to work within and influence deployment standards. Agile delivery leadership: experience leading a team through sprint delivery, dependency management, and technical scoping in a product-led environment. Regulated industry experience: insurance, finance, or healthcare. Understands the implications of audit logging, data residency, access control, and compliance requirements on engineering decisions. Strong communicator: able to lead technical discussions, document architectural decisions clearly, and represent engineering credibly to non-technical audiences. Ways of Working Leads by example: stays close to the code and models the quality and rigour expected from the team. Collaborative and direct: shares context freely, gives clear feedback, and creates an environment where engineers can raise concerns and propose improvements. Pragmatic: balances technical correctness with delivery reality; makes trade-offs explicitly rather than silently. Comfortable with ambiguity: can scope and lead work in areas where requirements are still forming, and knows how to structure discovery to reduce uncertainty. Proactive learner: keeps up with backend and cloud-native ecosystem developments; comfortable adopting AI-assisted developer tools (e.g. GitHub Copilot, Claude Code) to improve team productivity. Nice to Have Insurance or financial services domain knowledge: understanding of claims, policy, or payment workflows. Experience integrating AI or ML services into production business logic: consuming model outputs, handling confidence thresholds, building human-in-the-loop workflows. Event-driven architecture experience: Kafka or equivalent at production scale. Cloud certifications: AZ-204 (Azure Developer), AZ-305 (Azure Solutions Architect), or equivalent. Experience leading distributed or multi-vendor engineering teams. What we offer Contract under Polish law: B2B or Umowa o Pracę Benefits such as private medical care, group insurance, Multisport card Hybrid work (at least 1 day per 2 or 3 months on-site) in Warsaw (Mokotów) Opportunity to work with excellent professionals High standards of work and focus on the quality of code New technologies in use Continuously learning and growth International team Pinball, PlayStation & much more (on-site) Join a growing team of dedicated professionals! We love to pass on the knowledge to grow excellence, speak our minds without playing politics, and just enjoy hanging around together. If you share our passions - we want to meet you! So go ahead and apply ➡️