Senior Fullstack Engineer (React / Node.js)

🏢 Summary: Frontend Developer role focused on rebuilding a core logistics operating system into a microservices-based architecture by implementing modern, scalable, and maintainable user interfaces. The position involves developing reusable frontend foundations, refactoring legacy applications, and ensuring high performance, accessibility, and quality standards. The role requires close collaboration with cross-functional teams to deliver enterprise-grade frontend solutions. 🗂️ Requirements: 5+ years of web frontend development experience in enterprise-scale environments, Excellent knowledge of HTML, CSS, JavaScript, Experience with Angular 19+ and TypeScript, Experience with SCSS, Experience with CI/CD tools, Knowledge of microfrontend architecture and composition patterns, Experience building and maintaining Design Systems and shared libraries, Strong browser debugging and troubleshooting skills, Strong focus on testing, performance, and accessibility best practices, Good English skills (spoken and written), Computer science degree or equivalent 📃 Skills: HTML, CSS, JavaScript, Angular, TypeScript, SCSS, Jenkins, AWS, CI/CD, Microfrontends, DesignSystems 🏢 Description: Job Overview We’re looking for a Frontend Developer to join our transformation program, where we’re rebuilding our core logistics operating system into a microservices-based architecture—right within our IT Germany team. Your job? Implement the diverse user interfaces needed by our core logistic operating system, collaborating with a diverse team across our IT frontend chapter. If you love building products that truly make a difference, this could be a great fit. Our team focuses on developing and improving applications that deliver real value to both our parcel logistics colleagues and our customers. Main Responsibilities - Collaborate with UX/UI designers to implement modern, responsive, and accessible user interfaces, integrated with APIs and backend systems; - Build and maintain reusable frontend foundations (shared libraries, patterns, and components) to support multiple applications and teams; - Rebuild or refactor legacy frontends using modern frameworks and platforms, ensuring long-term maintainability; - Define and apply frontend standards and best practices (coding guidelines, testing approach, and documentation) to ensure consistent quality; - Optimize applications for maximum speed, scalability, and reliability (including performance tuning and bundle optimization); - Work closely with backend developers, QA, DevOps, product owners, and business analysts to deliver stable and user-centered solutions. Key Requirements - 5+ years’ experience in web frontend development, ideally in enterprise-scale environments; - Excellent knowledge of browser troubleshooting and debugging practices and techniques; - Excellent knowledge of HTML, CSS, JavaScript; - Experience with Angular 19+, TypeScript, SCSS, and CI/CD tools (Jenkins, AWS Cloud); - Experience building and evolving Design Systems and internal shareable libraries, including documentation and adoption support; - Knowledge of microfrontend architecture and composition patterns, with attention to dependency management and compatibility; - Strong focus on quality (testing mindset, performance awareness, and accessibility best practices); - Sense of ownership and pride in your performance and impact on company’s success; - Good English skills both spoken and written; - Computer science degree or equivalent. Nice to Have - Experience with Agile methodologies and collaboration tools;- Familiarity with backend development concepts;- Interest in continuous learning and professional development.

🏢 Summary: Senior Backend Developer role for a greenfield maritime logistics system, focused on building backend services and integrations for vessel and port administration processes. The position involves designing secure, reliable, and scalable APIs and system integrations within a modern backend architecture (Java or .NET). The project is international, integration-heavy, and allows real influence on technology stack and architecture decisions. 🗂️ Requirements: Minimum 3 years commercial experience as Backend Developer, Senior-level expertise in Java or .NET, Participation in at least 3 international projects, Participation in at least 2 maritime domain projects, Experience building integration-heavy systems, Experience working with REST APIs and system integrations, Strong knowledge of security, scalability, performance, maintainability, Good command of English, Ukrainian language proficiency at minimum B2 level 📃 Skills: Java, .NET, REST, APIs, Microservices, Event-driven, Azure, AWS, GCP, Docker, Kubernetes, CI/CD, Security, Scalability, Performance 🏢 Description: Project Description For one of our clients participating in a public tender, we are looking for Senior Backend Developers who, together with a Frontend React Developer, will form a recommended delivery team. The project involves building a greenfield solution in the maritime / port logistics domain, supporting processes related to vessel visits and integrations with various maritime administrations and port-related systems. The system will be developed using a modern backend services architecture, with a strong focus on integrations, reliability, data security, and operational stability. The backend technology stack will be recommended by the vendor (preferred Java or .NET). Responsibilities •     Design and develop backend services for a maritime / logistics / vessel management system •     Develop backend services and APIs (REST / system integrations) •     Participate in business and technical requirements analysis •     Implement integrations with external maritime and port administration systems •     Design and optimize data models and business logic •     Work in an international environment and collaborate closely with the client and project team •     Ensure code quality (code reviews, testing, standards, documentation) •     Support the definition of the technology stack and solution architecture Requirements (Must Have) •     Minimum 3 years of commercial experience as a Backend Developer •     Senior-level expertise in Java or .NET •     Participation in at least 3 international projects •     Participation in at least 2 maritime domain projects (e.g., ships, ports, vessel visits handling, harbor logistics, maritime administration systems, shipping) •     Experience in building integration-heavy systems and working with APIs •     Strong knowledge of backend engineering topics: security, scalability, performance, maintainability •     Good command of English (international environment) •     Ukrainian language skills at minimum B2 level Nice to Have •     Experience in public sector projects or mission-critical systems •     Knowledge of microservices and/or event-driven architecture •     Cloud experience (Azure / AWS / GCP) •     CI/CD, Docker/Kubernetes •     Experience working with systems involving multiple integrations and complex business processes •     Knowledge of logistics and transportation domain We Offer / Engagement Conditions •     Work on a high-impact greenfield project •     Long-term cooperation •     100% remote work model •     Real influence on technology stack selection and system architecture •     Collaboration in an international environment and participation in a maritime industry project

🏢 Summary: Contract role focused on leading end-to-end development of complex frontend features using TypeScript and React for large-scale enterprise applications. The position emphasizes scalable architecture, advanced state management, performance optimization, security, and integration with backend services. Involves contributing to Node.js services, CI/CD pipelines, testing strategies, and ensuring high-quality, accessible, and secure UI delivery. 🗂️ Requirements: Strong experience with TypeScript and React, Experience delivering complex frontend features end-to-end, Experience designing scalable frontend architectures, Expertise in state management libraries (Redux, Zustand, React Query), Experience integrating with APIs and BFF layers, Proficiency with Node.js, Experience with performance optimization techniques, Knowledge of WCAG and semantic HTML, Experience with secure coding practices and authentication flows, Experience with CI/CD pipelines and automated testing, Strong debugging and production issue resolution skills, Experience working in Agile environments 📃 Skills: TypeScript, React, Redux, Zustand, ReactQuery, Node.js, HTML, CSS, WCAG, CI/CD, REST, API, BFF, Testing, Jest, Cypress, Security, OAuth, PCI, Cloud, CDN 🏢 Description: Job description: * Own end-to-end delivery of complex frontend features using TypeScript and React, from design through production. * Design scalable, maintainable architectures for large enterprise applications (modularization, code splitting, performance). * Lead state management strategy (e.g., Redux, Zustand, React Query), ensuring predictable data flow and performance. * Build and integrate with APIs and BFF layers; contribute to Node.js services where needed. * Translate product and design requirements into high-quality, accessible UI (WCAG-compliant, semantic HTML, responsive CSS). * Drive performance optimization (rendering, bundle size, network usage, caching). * Establish and enforce coding standards, patterns, and best practices across the codebase. * Conduct code reviews, mentor engineers, and raise the overall engineering bar. * Apply strong, proactive debugging practices to identify, isolate, and resolve issues early across environments. * Diagnose and resolve complex production issues using structured debugging, logging, and observability tools. * Embed security best practices into development (secure coding, input validation, auth flows, data protection), and ensure compliance—especially for payment-related flows. * Collaborate with backend, SRE, security, and product teams to ensure reliable, secure, and scalable solutions. * Contribute to CI/CD pipelines, testing strategies (unit, integration, e2e), and release processes. * Participate actively in Agile ceremonies; break down work, estimate, and deliver iteratively. Nice to Have / Preferred Experience * Experience in payments domain (checkout flows, PCI considerations, transaction handling). * Full-stack exposure with Node.js, API design, and BFF patterns. * Familiarity with cloud platforms and edge/CDN strategies. * Experience with design systems and component libraries at scale. Period from: 2026-05-25 Period to: 2026-12-31

🏢 Summary: Full-stack freelance role focused on building scalable, cloud-native applications using .NET and Angular within the Azure ecosystem. The position involves translating complex business requirements into high-quality software solutions while applying modern architectural patterns and Agile delivery practices. The contract is project-based B2B for an initial 12-month period. 🗂️ Requirements: 4+ years experience with .NET technologies (C#, .NET Core, EF/ORM, WCF), 3+ years experience with Angular or strong React background with recent Angular experience, 2+ years hands-on experience with Azure services (Functions, Logic Apps, Web Apps), Advanced knowledge of architectural and design patterns, Experience with SOAP and REST web services, Experience with SQL and SQL Server, Experience with Git and CI/CD pipelines, Experience with Unit Testing, Fluent English 📃 Skills: .NET, .NETCore, C#, EntityFramework, ORM, WCF, Angular, React, Azure, Functions, LogicApps, WebApps, SQL, SQLServer, Git, CI/CD, SOAP, REST, Agile, UnitTesting 🏢 Description: Join an international team of experts delivering high-impact software solutions for global clients. In this role, you will work in a full-stack capacity, translating complex business requirements into scalable, cloud-native applications. You will collaborate with top-tier professionals to design and implement innovative solutions that address real-world engineering challenges while ensuring the highest industry standards. Form of cooperation: freelance project-specific B2B contract for an initial period of approximately 12 months. Tech stack: Backend: .NET / .NET Core, C#, Entity Framework (or other ORM), WCF, SOAP/REST APIs. Frontend: Angular (primary), React. Cloud: Azure (Functions, Logic Apps, Web Apps, SQL Server). Data: SQL Server. DevOps/Tools: Git, CI/CD, Agile, Unit Testing. Requirements: 4+ years of professional experience with .NET technologies (C#, .NET Core, EF/ORM, WCF) 3+ years of experience in Angular (or strong React background with recent Angular experience) 2+ years of hands-on experience with Azure services (e.g., Functions, Logic Apps, Web Apps) Advanced knowledge of Architectural and Design Patterns Proficiency in Web Services (SOAP/REST) and SQL Experience with Git, Continuous Integration, and Continuous Delivery pipelines Fluent English (written and spoken) for effective international communication Ideally, you’ll also have: Azure Cloud certifications Main responsibilities: Full-Stack Development: Address complex software engineering problems using both object-oriented and functional programming styles. Quality Assurance: Maintain high standards of code quality and testing through Clean Code and Unit Testing practices. Cloud Engineering: Design and develop scalable solutions utilizing a wide range of Azure-hosted services and tools. Agile Delivery: Implement Agile methodologies and modern software delivery techniques, including CI/CD and automated deployment. Professional Growth: Proactively adopt new technologies and frameworks within the Azure Cloud ecosystem to drive project success.

🏢 Summary: Frontend-focused engineering role centered on building Angular applications integrated with Java backends in a cloud-native environment. The position involves working with CI/CD pipelines and containerized deployments on Kubernetes-based infrastructure. Candidates will collaborate on API integration and contribute to reliable, automated release processes. 🗂️ Requirements: Strong experience with Angular, Solid Java knowledge, Experience integrating frontend with backend APIs, Proficiency with Git, Practical experience with CI/CD pipelines, Familiarity with Kubernetes, Familiarity with Helm, Cloud experience with Azure or AWS, Understanding of containerized application delivery 📃 Skills: Angular, Java, Git, CICD, GitHubActions, Kubernetes, Helm, Azure, AWS, APIs, Containerization 🏢 Description: Role overview Position focused primarily on frontend engineering with Angular, while working in a Java-based ecosystem. Fullstack experience is valued but not required. The role involves contributing to modern cloud-native applications deployed in containerized environments with automated delivery pipelines. Responsibilities Build and maintain Angular frontend components integrated with Java backends Collaborate with backend engineers on API design and integration Work within CI/CD pipelines to support reliable deployments Participate in code reviews and enforce clean engineering standards Contribute to containerized cloud deployments and release processes Requirements Strong experience with Angular and modern frontend engineering practices Solid Java knowledge for backend integration Proficiency with Git and collaborative workflows Practical experience with CI/CD pipelines (e.g., GitHub Actions) Familiarity with Kubernetes and Helm Cloud exposure — Azure preferred, AWS acceptable Understanding of containerized application delivery Nice to have Fullstack development experience Exposure to microservices architectures Experience working in agile delivery teams Education Bachelor’s degree in Computer Science or related field preferred

🏢 Summary: Long-term remote contract for a Senior Frontend-focused Fullstack Developer to support modernization of international money transfer systems in online and mobile banking. The role centers on building modern Angular interfaces while contributing to Java-based microservices and ensuring quality through testing. You will work within a complex banking ecosystem delivering clean, scalable end-to-end solutions. 🗂️ Requirements: Senior-level experience, Strong expertise in JavaScript, Strong expertise in TypeScript, Strong expertise in Angular, Solid experience with Java, Experience with Spring, Experience with Spring Boot, Experience with OR-Mappers, Knowledge of relational databases, Experience with microservices architecture, Proficiency in Clean Code principles 📃 Skills: JavaScript, TypeScript, Angular, Java, Spring, SpringBoot, Hibernate, SQL, Microservices, CleanCode 🏢 Description: Join a major modernization initiative within a leading German bank, focusing on international money transfers for both Online Banking and Mobile Banking (BankingApp). You will collaborate with an existing nearshore team that is highly flexible—developing frontends while also building and testing (manually and automatically) Java-based microservices. We are looking for a specialist who can bridge both worlds but maintains a strong primary focus on the Frontend . Details Start: June 2026. Duration: longterm Location: 100% remote (max. 2 site visits per year to Germany, travel costs covered by the Bank). Workload: 1 FTE Languages: Fluent English is a must; German is a "nice to have." Responsibilities Frontend Development: Leading the creation of modern, responsive interfaces for banking applications using Angular. Backend Support: Building and maintaining backend microservices to ensure end-to-end functionality. Quality Assurance: Participating in both automated and manual testing of the developed services. Modernization: Implementing clean, scalable code within a complex international banking ecosystem. Requirements Frontend (Primary): Strong expertise in JavaScript, TypeScript, and Angular . Backend (Fullstack): Solid experience with Java, Spring, Spring Boot , and OR-Mappers (e.g., Hibernate). Databases: Practical knowledge of relational databases and microservices architecture. Standards: Proficiency in Clean Code principles. Seniority: Senior-level experience is required. Nice to Have Experience with Kafka and Openshift .

🏢 Summary: Backend-focused contract role to develop and maintain high-performance, reliable systems with strong cloud and containerization practices. The position involves close collaboration with frontend teams to ensure seamless data integration and efficient deployment on AWS. Initial 6-month B2B contract with remote work and periodic travel. 🗂️ Requirements: Proficiency in Python, Experience with backend frameworks, Experience with Pandas, Knowledge of Docker, Knowledge of Kubernetes, Hands-on experience with AWS services (Lambda, EC2, ECS, EKS), Basic knowledge of Terraform, English level B2+ 📃 Skills: Python, Pandas, Docker, Kubernetes, AWS, Lambda, EC2, ECS, EKS, Terraform, Temporal, Camunda, StepFunctions, Pymocks 🏢 Description: Project Information: Start : ASAP Rate : up to 200 PLN/h Type of contract : B2B Length of the project : first contract for 6 months Location : remote Business travels : one trip to Frankfurt per 3 months Languages : English on minimum B2+ level; German - nice to have Summary: This role focuses on developing and maintaining robust backend systems to ensure high performance and reliability while collaborating closely with frontend teams for seamless data integration. Main Responsibilities: Develop and maintain backend systems with a focus on performance and reliability. Collaborate closely with frontend teams to ensure smooth data flow and integration. Build and manage containerized applications using tools like Docker and Kubernetes. Utilize cloud services, particularly AWS, to deploy and operate applications efficiently. Key Requirements: Proficiency in a general-purpose programming language, preferably Python. Experience with backend and data-science frameworks, specifically Pandas. Solid understanding of containerization technologies, including Docker and Kubernetes. Hands-on experience with AWS cloud services like Lambda, EC2, ECS, and EKS. Basic knowledge of Terraform. Nice to Have: Knowledge of business process modeling or workflow orchestration tools such as Temporal, Camunda, or AWS Step Functions. Experience working with mocking frameworks like pymocks.

🏢 Summary: Short-term contract for an experienced .NET Developer to design and build scalable backend systems in the energy and logistics domain using a microservices architecture. The role focuses on developing REST APIs, system architecture, integrations, and data optimization in high-scale production environments. Strong emphasis on AI-assisted development and modern DevOps practices. 🗂️ Requirements: 4–5+ years experience as .NET Developer, .NET 8 proficiency, ASP.NET Core API expertise, Entity Framework Core knowledge, SQL Server proficiency, Experience with Redis, Experience with RabbitMQ, Experience with Docker, Understanding of DDD, Experience with microservices architecture, Experience with xUnit testing, Hands-on use of AI tools in development 📃 Skills: .NET, ASP.NET, C#, EntityFramework, SQLServer, Redis, RabbitMQ, Docker, xUnit, Microservices, DDD, REST, AI 🏢 Description: About the project You’ll be working on backend systems within the energy and logistics domain , focusing on scalable platforms supporting services such as charging infrastructure, terminal operations, and logistics solutions. The systems are built using a modern microservices architecture , with strong emphasis on scalability, performance, and integrations. Duration: ~3 months (with possible extension) Your role Design and develop backend applications using .NET 8 Build and maintain REST APIs ( ASP.NET Core) Work on system architecture (including DDD and microservices ) Integrate systems using RabbitMQ Optimize and manage data storage ( SQL Server, Redis ) Write and maintain unit tests ( xUnit ) Containerize applications using Docker Actively use AI tools in daily development (must-have) Collaborate with developers, PMs, and designers Requirements 4–5+ years of experience as a .NET Developer Strong knowledge of: .NET 8 ASP.NET Core API Entity Framework Core SQL Server Experience with: Redis RabbitMQ Docker Understanding of DDD and system architecture Experience working with microservices Experience with testing ( xUnit ) Hands-on experience using AI tools in development (required) Nice to have Experience in energy, logistics, or high-scale systems Experience building high-availability solutions Experience working in distributed teams What we offer Opportunity to work on large-scale, production systems Flexible B2B cooperation Real impact on architecture and technical decisions Possibility to extend cooperation after the initial contract Work environment where AI is an integral part of development

🏢 Summary: Senior Full Stack Developer role focused on designing and developing web applications in a microservices-based, cloud-native environment. The position involves building reactive front-end solutions with React and robust backend services using Java and Spring, within containerized and DevOps-driven ecosystems. Fully remote, full-time B2B contract. 🗂️ Requirements: BSc in Software Engineering or BS in Computer Science, 6+ years of experience with Java and Spring, 5+ years of experience with modern JavaScript frameworks, Practical experience with React, Experience with functional programming and Java Streams, 2+ years of experience with TDD/BDD (JUnit, Jasmine, Mockito, Protractor or Selenium), 2+ years of experience with microservices architecture and Spring Boot/Cloud, Experience with DevOps practices and Jenkins, Experience designing and deploying cloud or hybrid solutions, Experience with container-based environments, Knowledge of microservices design patterns 📃 Skills: Java, Spring, SpringBoot, SpringCloud, React, JavaScript, Kotlin, Jenkins, JUnit, Jasmine, Mockito, Protractor, Selenium, Kubernetes, CloudFoundry, Microservices, Docker, TDD, BDD 🏢 Description: 💰 8.400-9.240 USD/Month 🌎 Fully Remote, Full-Time ☑️ B2B Contract We’re looking for a Senior Full Stack Developer ! Our client is an international company – a pioneer in container shipping. They are distinguished by their unique strategy as a digital-oriented, asset-light, global niche carrier that offers distinctive advantages, allowing the company to provide innovative and premium customer-centric services while maximizing profitability. In a dynamic shipping and logistics environment, the company has set itself apart as a carrier with a fresh, unique approach. Requirements: BSc in Software Engineering or a BS degree in Computer Science. 6+ years of experience in the following technologies: Java, Spring Experience with Functional Programming and Java Streams. 5+ years of experience in FE development with modern JavaScript Framework/libraries (practical experience with React is a must). Experience with developing a reactive UI (ReactJS). 2+ years of experience in TDD/BDD development in the following frameworks: Junit, Jasmin, Mockito, Protractor/Selenium 2+ years of experience in microservices-based architecture and tools (Spring Boot/Cloud) Experience in DevOps development and Jenkins. Experience in development in Kotlin is a big advantage. Experience in designing, developing, and deploying cloud/hybrid-based solutions. Experience in developing and deploying in container-based environments (Kubernetes, Cloud Foundry). Familiarity with the following design concepts: micro-services, service discovery, circuit breaker. Self-starter with the ability to appropriately prioritize and plan complex work in a rapidly changing environment. Versatility and the capability to switch easily between different tasks and technologies. Experience in assessing a broad range of information solutions and products. Strong critical thinker with problem-solving aptitude. Excellent English - verbal and written. Responsibilities: Design and develop Web applications. Develop from specifications supplied or create your own specification based on requirements. Reports progress on a regular basis to the Team Leader. Responsible for planning daily schedules and efficient use of time to ensure deliverables are met. Responsible for unit testing of own code to a level acceptable for Quality Assurance testing, where basic functions work per the requirements.

🏢 Summary: Frontend Developer role focused on building and maintaining modern web applications using React.js. The position involves creating responsive, user-centered interfaces, integrating RESTful APIs, and delivering scalable, maintainable frontend solutions. Emphasis is placed on performance, accessibility, and clean code standards. 🗂️ Requirements: 3–4+ years commercial frontend development experience, Strong hands-on experience with React.js, Proficiency in modern JavaScript (ES6+), Solid knowledge of HTML5 and CSS3, Experience with responsive design principles, Experience integrating RESTful APIs, Understanding of UI/UX best practices, Familiarity with state management, Experience with component-based architecture, Experience with Git and collaborative workflows, Ability to write scalable and maintainable code, Strong debugging and problem-solving skills 📃 Skills: React, JavaScript, ES6, HTML5, CSS3, REST, API, Git, UI, UX 🏢 Description: Responsibilities Develop and maintain modern web applications using React.js . Create responsive and intuitive user interfaces with a strong focus on usability and user experience. Connect frontend applications with RESTful APIs and backend systems. Translate business and design requirements into scalable frontend solutions. Write clean, reusable, and maintainable code following frontend development standards. Collaborate closely with designers, product owners, and backend engineers. Optimize application performance, accessibility, and cross-browser compatibility. Requirements 3–4+ years of commercial experience in frontend development. Strong hands-on experience with React.js and modern JavaScript (ES6+). Solid knowledge of HTML5, CSS3, and responsive design principles. Experience integrating APIs and working with backend services. Understanding of UI/UX best practices and user-centered design. Familiarity with state management and component-based architecture. Experience with Git and collaborative development workflows. Ability to write efficient, scalable, and well-structured frontend code. Strong problem-solving and debugging skills.