[All remote jobs](https://jobicy.com/jobs.md)[![ecosio logo](https://jobicy.com/data/server-nyc0409/galaxy/mercury/2025/06/eec17a98-221.png)](https://jobicy.com/company/ecosio.md)[ecosio](https://jobicy.com/company/ecosio.md) # Full Stack Developer – Java & React (f/m/d) Review the role, location requirements, compensation details, and application process before deciding whether this opportunity fits your next career move. [Apply for this job](#job-application)[View company](https://jobicy.com/company/ecosio.md)ShareRemote from[UK](https://jobicy.com/job-region/uk.md), [Spain](https://jobicy.com/job-region/spain.md), [Germany](https://jobicy.com/job-region/germany.md)+5 more, [Italy](https://jobicy.com/job-region/italy.md), [Portugal](https://jobicy.com/job-region/portugal.md), [Hungary](https://jobicy.com/job-region/hungary.md), [Croatia](https://jobicy.com/job-region/croatia.md), [Austria](https://jobicy.com/job-region/austria.md)SalaryUndisclosedDepartment[Software Engineering](https://jobicy.com/categories/engineering.md)EmploymentFull TimeExperienceOpen levelPublished31 Oct 2026Apply before30 Nov 2026Listing views51Application actions3Application toolkit ## Make your next move. Prepare your resume, explore your fit, and draft a cover letter for this opportunity. AI Summary ## The role, at a glance. ecosio is seeking a Full Stack Developer to build and maintain enterprise web-application features for its B2B integration platform. The role spans the complete delivery lifecycle, from feature ideation and implementation through deployment and ongoing maintenance. Core development work uses Java 11+, Spring/Spring Boot, TypeScript, and React, with AWS, Kubernetes, NoSQL data stores, and observability tooling supporting the platform. The developer will collaborate closely with product owners, write comprehensive unit tests, and apply secure coding practices. This is a remote-first full-time role available in Austria, Germany, Spain, the UK, Italy, Hungary, Portugal, and Croatia. ## Role DNA A quick view of the complexity, pace, ownership and collaboration implied by the job description. ### Job Complexity 4/5EasyHard ### Pace & Pressure 4/5RelaxedFast-paced ### Autonomy Level 4/5GuidedFull ownership ### Communication Load 4/5IndependentCollaborative AI insightThe position requires several years of enterprise full-stack experience across modern Java/Spring and React development, plus secure design, testing, and production ownership. The breadth of infrastructure and data technologies increases the technical complexity beyond a narrowly focused frontend or backend role. ## Salary analysis Estimated compensation compared with the broader US market for similar roles. Estimated job median (per year)Highly competitive$120,000US market range (per year)$95k–$145k0$159.50k AI insightThe yearly pay period is inferred from the job context; it was not explicitly stated by the employer. No employer compensation was disclosed. The annual USD figures are estimated market guidance for an experienced full-stack Java and React engineer; the yearly cadence is inferred from the full-time professional role. ## Core skills Skills and capabilities most closely associated with this opportunity. [Java](https://jobicy.com/jobs?search_keywords=Java.md)[Spring Boot](https://jobicy.com/jobs?search_keywords=Spring%20Boot.md)[React](https://jobicy.com/jobs?search_keywords=React.md)[TypeScript](https://jobicy.com/jobs?search_keywords=TypeScript.md)[JavaScript](https://jobicy.com/jobs?search_keywords=JavaScript.md)[Enterprise Web Applications](https://jobicy.com/jobs?search_keywords=Enterprise%20Web%20Applications.md)[REST APIs](https://jobicy.com/jobs?search_keywords=REST%20APIs.md)[Unit Testing](https://jobicy.com/jobs?search_keywords=Unit%20Testing.md)[JUnit](https://jobicy.com/jobs?search_keywords=JUnit.md)[Secure Coding](https://jobicy.com/jobs?search_keywords=Secure%20Coding.md)[AWS](https://jobicy.com/jobs?search_keywords=AWS.md)[Kubernetes](https://jobicy.com/jobs?search_keywords=Kubernetes.md)[MongoDB](https://jobicy.com/jobs?search_keywords=MongoDB.md)[Elasticsearch](https://jobicy.com/jobs?search_keywords=Elasticsearch.md)[Software Design Patterns](https://jobicy.com/jobs?search_keywords=Software%20Design%20Patterns.md) Sample interview questionsHow have you designed and delivered a feature from initial requirement through production deployment?I begin by clarifying user outcomes, constraints, and acceptance criteria with the product owner. I split the work into small deliverable slices, design the API and data changes, implement automated tests, and use code review and CI checks before deployment. After release, I monitor behavior and address feedback or operational issues. What practices do you use to keep a Java Spring Boot service secure and maintainable? I validate and authorize all inputs at service boundaries, protect secrets through configuration management, use dependency scanning, and avoid exposing sensitive information in logs or errors. For maintainability, I keep responsibilities separated, apply clear domain models and interfaces, write focused tests, and document important technical decisions. How would you structure a React and TypeScript feature that consumes a backend API? I would define strongly typed request and response models, isolate API calls in a service or query layer, and keep presentational components focused on rendering and user interaction. I would manage loading, error, and empty states explicitly, validate user input, and add component and integration tests for key user flows. Describe your approach to testing an enterprise full-stack feature. I use unit tests for business logic and UI behavior, integration tests for Spring controllers, persistence, and external boundaries, and targeted end-to-end tests for critical workflows. Tests should cover expected behavior, validation failures, authorization, and relevant edge cases while remaining fast and deterministic in CI. How do you collaborate effectively with product owners when requirements are ambiguous? I turn broad requests into concrete user scenarios, ask about business priority and edge cases, and document assumptions before implementation. I share lightweight technical options with trade-offs, agree on acceptance criteria, and provide regular progress updates so that feedback arrives early rather than after delivery. Opportunity details ## About this role. ### Company Description ecosio is a fast-growing, innovative service company and a leading provider of B2B integration, specialising in electronic data interchange (EDI), Web EDI and e-invoicing. ecosio is part of Vertex, Inc., a leading global provider of indirect tax solutions listed on Nasdaq (VERX). Our brand slogan is Connections That Work as we believe strong connections are central to successful business relationships – both external and internal. At ecosio, we hire individuals from all backgrounds and are committed to creating an inclusive work environment. We are technology lovers, set the highest standards for our solutions, and put innovative ideas first. ### Job Description You’ll connect with the role if you enjoy… * Develop and maintain features for our web applications * Take ownership of features, from ideation to deployment and ongoing maintenance * Write comprehensive unit tests to ensure code quality and reliability * Follow secure coding practices to protect our systems and user data * Collaborate closely with product owners to translate requirements into actionable features * Build efficient systems that enhance the productivity of our Onboarding & Operations team * Work with Java / Spring in the backend and TypeScript / React in the frontend Our current tech stack in the Web Application Team is: * Infrastructure: AWS, Kubernetes, ArgoCD * Java frameworks: Spring, SpringBoot, Apache Camel * Java libraries: JUnit * TypeScript / JavaScript libraries: React, Material UI, Semantic UI, React Final Form, TanStack Query, React Testing Library * Data storage and querying: MongoDB, Cassandra, Redis, Elasticsearch * Monitoring: Prometheus, Grafana ### Qualifications To connect with ecosio it is important to have… * experience in the field of computer science or engineering * several years of work experience in the software development of enterprise web applications * professional experience with JavaScript/Typescript and popular frameworks like React (Angular or Vue are also acceptable) * relevant work experience with Java 11+, Spring / Spring Boot * good knowledge in software design (e.g. design patterns) * a good command of written and spoken technical English And nice to have… * relevant knowledge of design systems (material UI, semantic UI, bootstrap, etc) * an in-depth understanding of NoSQL DB systems (MongoDB, Elasticsearch, Redis) ### Additional Information By connecting with us you will experience… * Our remote-first culture lets you work remotely from one of our designated countries * Flexible working hours to suit your schedule and priorities * Annual personal development budget to invest in conferences, courses, or career coaching * Home office allowance to create a workspace that fits your needs * Regular events and trips to connect, celebrate, and have fun with the team * Workations of up to 90 days per year within the EU, combining travel and productivity * Wellbeing support, including mental health resources and employee assistance programs * Additional country-specific benefits based on your location Sounds like a connection that works? Then apply now and we will get in touch soon! As part of our hiring process at ecosio, we conduct standard background checks. You can find more information about them by clicking [HERE](https://ecosio.com/en/background-check/). Our mission is to build Connections That Work by fostering a diverse and inclusive team. We are committed to making everyone feel valued and empowered to contribute their unique skills, experiences and perspectives. And now we want to connect with you Show more [Apply now >](https://jobicy.com/jobs/158154-full-stack-developer-java-react-f-m-d-2.md) > Annual salary information is not provided for this position. 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