FullStack Engineer (React + Java)

🏢 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: Fullstack Developer role for a large-scale travel booking system focused on building and maintaining high-traffic APIs, internal web applications, and numerous external integrations. The position involves working across distributed services, resolving production incidents, and contributing to engineering standards and development practices. 🗂️ Requirements: Strong understanding of SOA, Strong understanding of microservices architecture, Knowledge of API design principles, Experience with Node.js, Experience with JavaScript, Experience with TypeScript, Experience with Docker, Experience with Azure cloud services, Experience with CI/CD practices, Experience integrating third-party systems, Ability to troubleshoot distributed systems 📃 Skills: Node.js, JavaScript, TypeScript, Docker, Azure, SOA, Microservices, API, CI/CD, Cloud 🏢 Description: At Pretius we are looking for a Fullstack Developer for a travel booking system project for a major international transport company. Work mode: hybrid (once a month, a 2-day business trip to a client abroad; the rest of the time, working remotely from Poland) Project / Role Develop and maintain public and private APIs serving 100M+ requests monthly Support and enhance 20+ internal web applications used across the organization Build and maintain integrations with 50+ external systems and platforms Investigate and resolve production incidents across distributed services and the full application stack Contribute to the continuous improvement of engineering standards, tools, and development practices Requirements Bachelor's degree in Computer Science, Computer Engineering, or similar technical field Strong understanding of SOA, microservices, and API design principles Solid experience with Node.js, Nest.js, JavaScript, TypeScript, and Docker Hands-on experience with cloud technologies, particularly Azure Ability to quickly learn and adapt to new technologies and systems Familiarity with CI/CD and modern software delivery practices Experience integrating third-party services and platforms Very good command of English (min. B2) – both verbal and written Nice to have: Proficiency in French or German 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: 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 FullStack Engineer role focused on designing, 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 includes close collaboration with development teams and active participation in code quality processes. 🗂️ Requirements: 4–5+ years of experience as Full Stack Developer, Strong proficiency in React, Strong proficiency in Java, Strong proficiency in PostgreSQL, Experience with Azure Functions, Experience with CI/CD pipelines, Knowledge of Clean Code principles, Experience with code reviews and testing 📃 Skills: React, Java, PostgreSQL, AzureFunctions, CICD, AzureDevOps, GitHubActions, Jenkins, CleanCode, Testing 🏢 Description: As a recruitment company, DCG understands that every business is powered by experienced professionals. Our management style and partnership approach enable us to meet your needs and provide continuous support. Due to our ongoing growth and the large number of recruitment projects we undertake for our partners, we are currently looking for: Senior FullStack Engineer Responsibilities: Designing, building, and maintaining web applications (frontend + backend) Building and developing components in React Implementing backend logic in Java Working with PostgreSQL databases Building and developing Azure Functions Collaborating on the development and maintenance of CI/CD pipelines Collaborating with the project team (dev, QA, architecture) Participating in code reviews and ensuring code quality Requirements: At least 4–5 years of experience as a Full Stack Developer Strong proficiency in: React (frontend), Java (backend), and PostgreSQL Experience with: Azure Functions, CI/CD pipelines (e.g., Azure DevOps, GitHub Actions, Jenkins) Knowledge of software development best practices (Clean Code, code review, testing) Ability to work in an Agile/Scrum environment Good command of English (min. B2) Nice to have: Experience working in a cloud environment (Azure) Knowledge of microservices architecture Experience with enterprise projects Offer: Private medical care Co-financing for the sports card Training & learning opportunities Constant support of dedicated consultant Employee referral program

🏢 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: Senior Fullstack Engineer role in a global investment firm focused on building and modernizing high-performance financial platforms. The position involves end-to-end development across backend and frontend, optimizing financial data systems, and contributing to cloud-based, distributed architectures. The role combines enterprise engineering with modern cloud and streaming technologies in a global, agile environment. 🗂️ Requirements: 7+ years of professional full-stack development experience, Hands-on experience with C# and .NET, Hands-on experience with Node.js, Hands-on experience with React, Strong knowledge of SQL Server and T-SQL, Experience designing scalable server-side applications, Experience optimizing high-throughput databases, Ability to participate in architecture and design reviews, Professional English proficiency 📃 Skills: C#, .NET, Node.js, ReactJS, AngularJS, SQL, T-SQL, SQLServer, Cloud, Containers, DataStreaming, AI, ML 🏢 Description: About the Role & Project We are recruiting for a leading global alternative investment firm (Hedge Fund) that is modernizing capital markets. We are not looking for a traditional, single-stack developer. We need a Senior Fullstack Engineer who comfortably bridges the gap between robust enterprise systems and cutting-edge cloud/AI solutions. You will join an agile tech team building high-performance platforms where your code directly impacts complex, global financial systems. Tech Stack Backend: C# / .NET, Node.js Frontend: ReactJS (with occasional legacy AngularJS maintenance) Data: SQL Server, T-SQL Architecture: Cloud, Containers, Data Streaming Key Responsibilities End-to-End Dev: Design and scale server-side apps (Node.js/.NET) and build responsive UIs (React). Data & Perf: Optimize high-throughput SQL Server stored procedures for financial data. Modernization: Leverage streaming and cloud technologies to build resilient, distributed platforms. Architecture: Take an active role in tech design reviews, architecture discussions, and mentoring. Requirements 7+ years of professional full-stack development experience. Hands-on mastery of C#/.NET, Node.js, React, and T-SQL. Engineering standards: Strong analytical skills, clean code mindset, and solid application design focus. Communication: Excellent English skills to collaborate smoothly with international teams. Bonus Points: Experience or interest in integrating AI/ML models into enterprise apps. Prior background in FinTech, banking, or trading environments . What We Offer Financial & Future: Private pension scheme, life & travel insurance, educational assistance reimbursement. Health & Wellness: Premium medical & dental package (with vision allowance) + MultiSport card. Culture & Perks: Pre-funded lunch card, Employee Assistance Program, volunteer opportunities, and active DEI affinity groups. If interested, please click apply! :)

🏢 Summary: Senior Full Stack Engineer role focused on designing and delivering scalable, cloud-native applications across backend, frontend, and cloud infrastructure. The position involves building high-performance Java systems, modern React interfaces, and deploying solutions on Azure in a distributed enterprise environment. The engineer contributes to architecture decisions and ensures reliable CI/CD and production operations. 🗂️ Requirements: 7+ years Java experience, Strong enterprise backend development, Experience with ReactJS, Experience with Azure cloud platform, Strong PostgreSQL knowledge, Relational data modeling skills, 2+ years CI/CD experience, Experience with DevOps practices, Ability to work across full stack, Strong debugging skills in distributed systems 📃 Skills: Java, ReactJS, Azure, PostgreSQL, CI/CD, DevOps, Microservices, SQL, Cloud, Git 🏢 Description: Senior Full Stack Engineer (Java, Cloud & React) We are looking for a Senior Full Stack Engineer who can take ownership of designing and delivering scalable, cloud-native applications. The role involves working across backend services, frontend interfaces, and cloud infrastructure in a highly distributed enterprise environment. What you will do Design and build high-performance backend systems using Java 17+ Develop modern, responsive UI applications using ReactJS Build and deploy cloud-native applications on Microsoft Azure Work with PostgreSQL for scalable and efficient data design Collaborate with DevOps teams to ensure smooth CI/CD pipelines and releases Debug and resolve complex production issues across distributed systems Contribute to architecture discussions and technical decision-making What we are looking for Strong hands-on expertise in Java (7+ years) and enterprise backend development Solid experience in ReactJS-based frontend development Experience working with cloud platforms (Azure preferred) Strong understanding of PostgreSQL and relational data modeling Exposure to DevOps practices and CI/CD pipelines (2+ years) Ability to work across the stack and handle production-grade systems Strong problem-solving and debugging skills Nice to have Experience designing microservices-based architectures Exposure to large-scale distributed systems Experience working in enterprise-grade cloud environments Interested? Share your CV to a company who matters about your growth and long term prospects.