Fullstack Developer

🏢 Summary: Full Stack Engineer role in a financial industry project within an international team, focused on building and maintaining web applications across frontend and backend. The position involves developing React components, implementing backend logic in Java, managing PostgreSQL databases, and working with Azure Functions and CI/CD pipelines. The role emphasizes high code quality and best development practices. 🗂️ Requirements: 4+ years of experience as Full Stack Developer, Strong knowledge of React, Strong knowledge of Java, Strong knowledge of PostgreSQL, Experience with Azure Functions, Experience with CI/CD pipelines, Understanding of Clean Code principles, Experience with testing practices 📃 Skills: React, Java, PostgreSQL, AzureFunctions, CICD, AzureDevOps, GitHubActions, Jenkins, CleanCode, Testing, Microservices 🏢 Description: At Pretius we are looking for FullStack Enigneer to a project in the financial industry, international team. Project / Role Design, develop, and maintain web applications (frontend + backend) Build and enhance components in React Implement backend logic in Java Work with PostgreSQL databases Develop and maintain Azure Functions Contribute to building and maintaining CI/CD pipelines Collaborate with cross-functional teams (developers, QA, architects) Participate in code reviews and ensure high code quality Requirements 4+ years of experience as a Full Stack Developer Strong knowledge of: React, Java, PostgreSQL Experience with: Azure Functions, CI/CD pipelines (e.g., Azure DevOps, GitHub Actions, Jenkins) Understanding of software development best practices (Clean Code, code reviews, testing) Experience working in Agile/Scrum environments Good command of English (min. B2) Nice to have Experience working in cloud environments (Azure) Knowledge of microservices architecture Experience in enterprise-level projects What do we offer? We focus on long-term relationships based on fair principles and reliability Co-financing of the Multisport card and Medicover private healthcare Modern office available Team bonding activities, internal courses, conferences, certifications

🏢 Summary: Node.js Tech Lead role in a financial industry project within an international environment, responsible for designing scalable microservices architectures and leading cross-functional teams. The position combines hands-on Node.js development with technical leadership, cloud infrastructure oversight, and delivery management. The role also involves translating business needs into technical solutions and ensuring engineering best practices. 🗂️ Requirements: 8+ years of software development experience, Strong hands-on experience with Node.js (NestJS or Express), Experience with microservices and distributed systems, Experience with cloud platforms (AWS, Azure or GCP), Experience with Docker, Kubernetes and CI/CD pipelines, Proven experience leading technical teams and conducting code reviews, Experience working in Agile/Scrum/DevOps environments, Fluent English (C1) 📃 Skills: Node.js, NestJS, Express, Microservices, DDD, AWS, Azure, GCP, Docker, Kubernetes, CI/CD, Agile, Scrum, DevOps 🏢 Description: At Pretius , we are looking for Node.js Tech Lead to a project in the financial industry, international team. Project / Role Lead and mentor cross-functional teams (Backend, Frontend, DevOps, QA) Design and oversee scalable architectures based on Node.js and microservices Coordinate multiple teams and support staffing, onboarding, and recruitment Translate business needs into technical solutions and support pre-sales activities Ensure best practices (CI/CD, code quality, testing, security) Monitor delivery, report KPIs, and manage risks Collaborate with international stakeholders Requirements 8+ years of experience in software development, including leadership roles Strong hands-on experience with Node.js (NestJS / Express) Experience with microservices, distributed systems (DDD, event-driven is a plus) Cloud experience (AWS / Azure / GCP) and tools like Docker, Kubernetes, CI/CD Proven ability to lead teams, conduct code reviews, and mentor engineers Experience working with business stakeholders in international environments Familiarity with Agile / Scrum / DevOps Fluent English (C1) What do we offer? We focus on long- term relationships based on fair principles and reliability Co-financing of the Multisport card and Medicover private healthcare Modern office available Team bonding activities, internal courses, conferences, certifications

🏢 Summary: Leadership role for a React Tech Lead in a financial industry project within an international team, responsible for designing scalable frontend architectures and ensuring high engineering standards. The role combines hands-on React development with technical leadership, mentoring, and cross-functional collaboration. It includes ownership of frontend quality, performance, and delivery oversight. 🗂️ Requirements: 8+ years of software development experience, Experience in technical leadership roles, Strong experience with React, Strong experience with TypeScript, Experience with scalable frontend architecture, Knowledge of state management solutions, Experience with API integration, Experience with performance optimization, Experience with automated testing, Experience with CI/CD pipelines, Experience with cloud environments, Knowledge of DevOps practices, Experience working in Agile/Scrum, Fluent English (C1) 📃 Skills: React, TypeScript, Redux, Zustand, Jest, Cypress, CICD, Cloud, DevOps, Microfrontends, APIs, Agile, Scrum, Performance, Accessibility, Security 🏢 Description: At Pretius , we are looking for React Tech Lead to a project in the financial industry, international team. Project / Role Lead and mentor Frontend and cross-functional teams (Backend, DevOps, QA) Design and oversee scalable frontend architectures using React Define UI standards, performance, and best practices (testing, accessibility, security) Coordinate multiple teams and support staffing, onboarding, and recruitment Translate business requirements into technical solutions and support pre-sales Ensure high code quality through reviews and engineering standards Monitor delivery, report KPIs, and manage risks Collaborate with international stakeholders Requirements 8+ years of experience in software development, including leadership roles Strong hands-on experience with React, TypeScript, and modern frontend ecosystems Experience with scalable frontend architecture (e.g., micro-frontends is a plus) Knowledge of state management (Redux, Zustand, etc.) and API integration Familiarity with performance optimization, testing (Jest, Cypress), and CI/CD Experience working with cloud environments and modern DevOps practices Proven ability to lead teams and mentor engineers Familiarity with Agile / Scrum / DevOps Fluent English (C1) What do we offer? We focus on long- term relationships based on fair principles and reliability Co-financing of the Multisport card and Medicover private healthcare Modern office available Team bonding activities, internal courses, conferences, certifications

🏢 Summary: The offer is for an experienced C# and .NET Developer to build and enhance scalable, data-driven applications within a financial services project. The role focuses on developing end-to-end solutions, data integrations, and automated business logic while contributing to application architecture and clean code standards. You will work in an Agile environment supporting high-volume data processing and complex workflows. 🗂️ Requirements: 5+ years experience with C#, 5+ years experience with .NET, Strong knowledge of software architecture, Knowledge of design patterns, Understanding of clean code principles (KISS, DRY, SOLID), Experience building end-to-end applications, Experience with data integration and transformation, Experience with MS SQL Server, Experience with relational databases, Experience working in Agile/Scrum environment, Experience with Azure DevOps, Experience with Jira, Experience with Confluence 📃 Skills: C#, .NET, SQL, MSSQL, Architecture, DesignPatterns, SOLID, KISS, DRY, DataIntegration, DataTransformation, Automation, Scrum, AzureDevOps, Jira, Confluence, RelationalDatabases 🏢 Description: At Pretius we are looking for an experienced C# & .NET Developer to join a financial services project focused on building and enhancing data-driven business applications. Project / Role Design and develop scalable applications using C# and .NET technologies Build customer-facing solutions supporting complex workflows and high-volume data processing Create and maintain data pipelines, integrations, and automated business logic Contribute to application architecture and ensure adherence to clean coding principles Support data migration and management initiatives Collaborate closely with business and technical teams using Agile delivery practices Requirements 5+ years of hands-on experience with C# and Microsoft .NET technologies Strong understanding of software architecture, design patterns, and clean code principles (KISS, DRY, SOLID) Experience developing end-to-end applications, from backend services to user-facing functionality Knowledge of data integration, transformation, and automation processes Experience with MS SQL Server and relational databases Familiarity with Scrum, Azure DevOps, Jira, and Confluence Excellent English communication and stakeholder management skills Nice to have: Experience in banking or financial services projects Exposure to risk management domains such as market, liquidity, or credit risk Knowledge of Databricks and modern data platforms What do we offer? We focus on long-term relationships based on fair principles and reliability Co-financing of the Multisport card and Medicover private healthcare Modern office available Team bonding activities, internal courses, conferences, certifications

🏢 Summary: Senior Java Developer role focused on building and maintaining scalable, secure backend systems for a global gaming and lotteries platform. The position involves developing cloud-native applications using Java 17+ and Spring Boot, managing PostgreSQL databases, and deploying containerized solutions with Kubernetes and Helm. 🗂️ Requirements: Strong experience with Java 17+, Hands-on experience with Spring, Spring Boot, Spring Security, Experience with cloud-native application development, Experience with SQL databases and PostgreSQL, Knowledge of Maven and CI/CD pipelines, Proficiency with Git and GitHub, Experience with JUnit, AssertJ, Hamcrest, Experience with Kubernetes and Helm, Knowledge of Docker, Bash/Shell scripting skills, Experience in Agile (Scrum/Kanban) environments, Bachelor's degree in Computer Science or related field 📃 Skills: Java, Spring, SpringBoot, SpringSecurity, PostgreSQL, SQL, Maven, CICD, Git, GitHub, JUnit, AssertJ, Hamcrest, Kubernetes, Helm, Docker, Bash, Shell 🏢 Description: At Pretius , we are looking for Senior Java Developer to a global-scale platform in the field of gaming and lotteries project. Project/Role Design, develop, and maintain robust, configurable backend applications using Java 17+ and Spring Boot to meet diverse customer requirements Ensure efficiency of PostgreSQL databases for scalable solutions Ensure security, scalability, and performance of backend systems Use Bash/Shell scripting for automation and system integration tasks Contribute to application deployment using Docker and Kubernetes, including package management with Helm Requirements Strong experience in backend development with Java 17+ , Spring / Spring Boot / Spring Security , and cloud-native applications Experience with SQL databases , Maven , and CI/CD pipelines Proficiency in Git & GitHub , including pipeline development Experience with testing frameworks such as JUnit, AssertJ, and Hamcrest Experience with Kubernetes and Helm for container orchestration and deployment Knowledge of Bash/Shell scripting for automation and system integration Experience working in Agile environments (Scrum/Kanban) and enterprise settings Strong English communication skills (B2/C1) Ability to lead, mentor, and collaborate effectively in distributed teams Bachelor's degree in Computer Science, Computer Engineering, or similar technical field What do we offer? We focus on long-term relationships based on fair principles and reliability Co-financing of the Multisport card and Medicover private healthcare Modern office available Team bonding activities, internal courses, conferences, certifications

🏢 Summary: Development role focused on building and maintaining testing frameworks and performance tooling for a global gaming and lotteries platform. The position involves creating automated solutions, supporting performance analysis, and collaborating with QA teams to improve testing efficiency and reliability. The role includes hands-on Java development, code reviews, and contributing to scalable quality assurance tools. 🗂️ Requirements: 5+ years of software development experience, Bachelor’s degree in Computer Science or equivalent experience, Proficiency in Java, Experience with SpringBoot, Experience with JPA and Hibernate, Experience building RESTful services, Knowledge of DB2 or PostgreSQL, Experience with software debugging tools, Strong understanding of Object-Oriented Programming, Strong understanding of Concurrent Programming, Experience with Git, Ability to pass security investigation 📃 Skills: Java, SpringBoot, JPA, Hibernate, REST, DB2, PostgreSQL, Git, SQL, Concurrency, OOP, Debugging 🏢 Description: At Pretius , we are looking for Java Developer to a global-scale platform in the field of gaming and lotteries project. Project / Role Design and develop tooling to support functional and performance testing within the QA team Implement automated solutions that improve testing efficiency and reliability Provide hands-on development of test frameworks, utilities, and performance test tooling Investigate performance issues, support root-cause analysis, and collaborate on improvements Collaborate with QA engineers and cross-functional teams to understand testing needs and translate them into scalable tools Write unit tests and perform peer design/code reviews Requirements 5+ years of development experience Computer Science Bachelor's degree, College degree or equivalent experience Proficiency in Java, SpringBoot, JPA, Hibernate, RESTful services Knowledge of relational databases ( DB2/PostgreSQL ) Knowledge of software debugging tools Good understanding of Object-Oriented and Concurrent Programming Solid experience with version control systems (preferred GIT) Nice to have: Experience in Docker/Kubernetes development Familiarity and experience with production deployment and troubleshooting Knowledge of event streaming, CQRS, Kafka Being able to pass a security investigation What do we offer? We focus on long-term relationships based on fair principles and reliability Co-financing of the Multisport card and Medicover private healthcare Modern office available Team bonding activities, internal courses, conferences, certifications

🏢 Summary: Senior Frontend Engineer role focused on owning and evolving the frontend architecture for global-scale digital draw games. The position involves building reusable client frameworks, implementing real-time event-driven systems, and developing interactive web-based game applications. You will guide external studios and ensure scalable, high-quality frontend implementations using modern tooling. 🗂️ Requirements: 5+ years of experience with React and TypeScript, Experience building complex frontend applications, Familiarity with HTML5 game technologies (e.g., Three.js or PlayCanvas), Experience developing interactive or real-time web applications, Experience with state-driven or event-driven frontend architectures, Understanding of asynchronous programming and real-time client-server communication, Experience with modern frontend tooling (e.g., Vite, CSS frameworks, automated testing), Proficiency with Git and collaborative version control workflows, Ability to translate UX and product requirements into technical implementations, Experience working with distributed teams or external development studios 📃 Skills: React, TypeScript, JavaScript, HTML5, Three.js, PlayCanvas, Vite, Tailwind, CSS, Git, REST, WebSockets, Testing 🏢 Description: At Pretius , we are looking for Senior Frontend Engineer to take technical ownership of the frontend architecture powering our digital draw games for global-scale platform in the field of gaming and lotteries. Project / Role Own and evolve the frontend architecture and technical frameworks used across multiple game clients. Design and maintain reusable client foundations and game category frameworks supporting different game paradigms. Develop and maintain frontend systems using React, TypeScript, Vite, and modern CSS frameworks. Implement and maintain event-driven client-server communication patterns for real- time and on-demand gameplay flows. Translate gameplay flows, UX layouts, and production specifications into scalable frontend implementations. Support and guide external development studios building game experiences on top of the client frameworks. Maintain and manage source code repositories, versioning practices, and build pipelines for game clients. Requirements 5+ years of experience developing complex frontend applications using React and TypeScript. Familiarity with HTML5 game development technologies, such as Three.js or PlayCanvas. Proficiency in building interactive or real-time graphical applications for the web. Experience working with external development studios or distributed engineering teams. Strong experience building state-driven or event-driven frontend systems. Solid understanding of asynchronous programming and real-time client-server interactions. Experience with modern frontend tooling such as Vite, CSS frameworks (e.g., Tailwind), and automated testing frameworks. Strong experience with Git, version control, and collaborative development workflows. Ability to translate product and UX concepts into robust technical implementations. Experience collaborating with designers, backend engineers, and product teams. Strong problem-solving and communication skills. Experience working in regulated, transactional, or high-reliability environments is a plus. What do we offer? We focus on long-term relationships based on fair principles and reliability. Co-financing of the Multisport card and Medicover private healthcare. Modern office available. Team bonding activities, internal courses, conferences, certifications.

🏢 Summary: Full Stack Developer role focused on building and evolving a modern web application platform with complex workflows and data-driven features. The position involves developing and maintaining both frontend and backend components, ensuring scalability, performance, and reliability. You will collaborate within a cross-functional team to deliver iterative improvements using modern development practices and AI-assisted tools. 🗂️ Requirements: Experience in full stack web application development, Hands-on experience with React, Experience with C# and .NET or comparable backend technologies, Practical experience with SQL-based databases and writing queries, Experience using AI-assisted development tools (e.g., Claude, Cursor), Solid understanding of Git and version control workflows, Ability to work with and extend existing codebases 📃 Skills: React, TypeScript, C#, .NET, SQL, Git, REST, Claude, Cursor 🏢 Description: Project overview The project is a web based application platform designed to support complex user workflows and data driven features. It focuses on performance, maintainability, and iterative delivery of new capabilities. Team You will be part of a cross functional development team consisting of full stack developers, frontend specialists, backend engineers, and QA engineers. The team works collaboratively, reviews code regularly, and follows shared development standards and branching practices. Position overview We are looking for a Full Stack Developer to contribute to the development and evolution of a modern web application platform. You will work on both frontend and backend components, focusing on building reliable, scalable features and improving existing functionality. The role combines hands on development with close collaboration across engineering and product roles. Technology stack React, TypeScript, C#, .NET, SQL based databases, Git, REST APIs, AI assisted development tools such as Claude and Cursor Responsibilities Develop and maintain frontend features using React and related technologies Build and support backend services using C# and .NET Collaborate with team members on feature design, implementation, and code reviews Work with SQL based databases to design, query, and optimize data storage Use AI assisted development tools to improve development efficiency and code quality Follow established Git workflows and branching strategies Participate in troubleshooting, debugging, and performance improvements Requirements Experience building web application platforms in a full stack role Hands on experience with React for frontend development Experience with C# and .NET or comparable backend technologies Understanding of SQL based databases and practical experience writing queries Experience using AI tools to support software development, including Claude or Cursor Solid understanding of Git, version control, and common branching flows Ability to work with existing codebases and contribute to ongoing development Nice to have Experience with cloud based environments Familiarity with CI CD pipelines Experience working on large scale or long term web platforms Exposure to performance optimization and application monitoring What We Offer: Vacation days : Up to 26 business days per year. 10 illness/special days off per year (fully paid, no medical papers needed) for all contract types Health and life insurance (Luxmed) MyBenefit platform with Multisport option Internal psychological support service English language classes from the first working day Access to external learning platforms : O’Reilly, LinkedIn Learning, Udemy, and a wide catalog of diverse internal training Flexible workplace : work from the office, from home, or choose a hybrid option Tech Skills Mentoring Program Opportunities to develop as a public speaker, mentor, or technical interviewer Fully paid idle (bench) when not involved in a project Certification reimbursement (AWS, GCP, Microsoft, etc.)

🏢 Summary: Fullstack Developer role for an international heating solutions client, focused on building advanced planning applications using React and Java. The position involves developing backend APIs, responsive interfaces, and managing the full platform lifecycle with CI/CD and cloud technologies. The role requires strong experience in enterprise Java, modern frontend frameworks, automated testing, and AI-assisted development workflows. 🗂️ Requirements: Strong proficiency in React, Strong proficiency in Next.js, Strong proficiency in Node.js with SSR, Advanced programming experience in Java, Advanced programming experience in TypeScript, Experience with Spring Boot, Experience integrating LLMs and AI tools, Experience designing and consuming REST APIs, Experience with relational databases, Experience with NoSQL databases, Experience with MS Azure, Experience with Docker, Experience with Kubernetes, Experience with Terraform, Experience with GitHub Actions, Experience with Gradle, Experience writing Unit tests, Experience writing Integration tests, Experience writing E2E tests, Understanding of Agile (Scrum or Kanban), English level minimum B2, Willingness to travel occasionally to Katowice 📃 Skills: React, Next.js, Node.js, Java, TypeScript, JavaScript, Spring, SpringBoot, REST, SQL, NoSQL, Azure, Docker, Kubernetes, Terraform, GitHubActions, Gradle, LLM, AI, Scrum, Kanban, Vue.js 🏢 Description: About the project For an international client from the heating solutions industry, we are looking for an experienced Fullstack Developer who feels comfortable working with React and Java. Our expectations - Strong proficiency in React, Next.js, and Node.js, including Server-Side Rendering (SSR). - Advanced, hands-on programming experience with both Java and TypeScript / JavaScript. - Deep knowledge of enterprise software development using Java and Spring Boot technologies. - Experience integrating LLMs and AI tools into daily workflows to optimize development speed. - Mastery of REST APIs and experience with relational/NoSQL databases, especially within MS Azure. - Hands-on experience with Docker, Kubernetes, Terraform, and pipeline automation via GitHub Actions and Gradle. - Direct experience writing automated Unit, Integration, and E2E tests. - Strong understanding of Agile principles including Scrum or Kanban. - Very good command of English (min. B2 level). - Willingness to undertake occasional travel to the client's office (Katowice) approximately once per quarter. Welcome Skills - Experience with Vue.JS. Key tasks - Design advanced planning applications in close collaboration with cross-functional teams. - Develop robust backend APIs for resource scheduling, allocation logic, and core modules. - Create responsive interfaces focused on performance, security, data visualization, and accessibility. - Build your own AI-based work environment using advanced developer tools to maximize efficiency. - Manage the platform lifecycle from architectural strategy to operations and CI/CD practices. - Design and implement automated test scenarios to guarantee platform success. - Maintain active communication with the Technical Product Owner and Product Management organization to align priorities.

🏢 Summary: B2B contract role for a Full-Stack Software Engineer to develop and maintain backend services in C#/.NET and frontend components in React within a dynamic, international project environment. The position involves building scalable solutions, integrating REST APIs, and supporting implementations with effective problem-solving. Remote work with long-term project engagement. 🗂️ Requirements: Proficiency in C# and .NET for scalable services development, Experience with React.js and React Query, Experience with Azure SQL and MS SQL, Experience building RESTful APIs with ASP.NET Core (OpenAPI), Knowledge of CI/CD processes and Agile methodologies, Experience with Azure DevOps or GitHub, English at minimum B2 level 📃 Skills: C#, .NET, React, ReactQuery, AzureSQL, MSSQL, REST, ASP.NET, OpenAPI, CI/CD, AzureDevOps, GitHub, Azure 🏢 Description: We are currently looking for a Full-Stack Software Engineer for our client, a world-leading provider of digital solutions and applications, with a particular focus on the energy, maritime, and healthcare markets. If working in a dynamic environment is something you’re comfortable with and you use the tech stack listed below on a daily basis, this opportunity is for you! Key responsibilities Developing advanced backend solutions in C# Creating and maintaining frontend components Preparing technical documentation Supporting implementations through quick and effective problem-solving Balancing changing priorities with ongoing development work Ideal candidate profile Proficient in .NET for building scalable services React.js, React Query Azure SQL, MS SQL RESTful APIs with ASP.NET Core (OpenAPI Standard) Knowledge of Agile methodologies and CI/CD processes (Azure DevOps, GitHub) English on B2 level nice to have: Experience with Azure (App Services, Azure Functions, Key Vault, Storage Accounts, Entra ID) Experience using AI-based development tools (Microsoft Copilot, GitHub Copilot) Conditions Employment Type: B2B contract Salary: Depends on your experience Work Model : Remote work model (possible 2–4 business trips per year to the office in Poland or Norway) Benefits : private medical care, sport card, life insurance Project duration: Project start March/April, with a duration of at least until the end of the year Recruitment steps Phone call with Recruiter Client interview Feedback and decision