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# 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)Share16 Aug 2026Published26Listing views3Application actions15 Sep 2026Apply before  Opportunity details

## About this role.

AI Summaryecosio is hiring a full-time Full Stack Developer to build and maintain enterprise web applications supporting B2B integration and internal onboarding and operations workflows. The role uses Java 11+, Spring/Spring Boot, TypeScript, and React, with responsibility for features from ideation through deployment and maintenance. The environment includes AWS, Kubernetes, ArgoCD, MongoDB, Cassandra, Redis, Elasticsearch, Prometheus, and Grafana. Candidates need several years of enterprise software-development experience, sound software-design knowledge, strong technical English, and a quality-minded approach to testing and secure coding.

## 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 insightThis is a mid-to-senior full-stack engineering role requiring several years of enterprise application experience across both Java/Spring and modern React/TypeScript development. The scope is demanding because the engineer owns features end to end while working with distributed systems, NoSQL technologies, cloud infrastructure, testing, and secure coding practices.

## Salary analysis

Estimated compensation compared with the broader US market for similar roles.

Estimated job medianMarket rate$135,000US market range$115k–$160k0$176k

AI insightNo candidate compensation is disclosed in the posting. The figures below are estimated US-market annual base-salary benchmarks for a mid-to-senior full-stack developer with Java/Spring Boot and React/TypeScript experience; actual compensation may vary by location, employer, and total-rewards structure.

## 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)[Software Design](https://jobicy.com/jobs?search_keywords=Software%20Design.md)[Unit Testing](https://jobicy.com/jobs?search_keywords=Unit%20Testing.md)[Secure Coding](https://jobicy.com/jobs?search_keywords=Secure%20Coding.md)[AWS](https://jobicy.com/jobs?search_keywords=AWS.md)

Cover letter sampleDear Hiring Team,

I am excited to apply for the Full Stack Developer – Java & React role at ecosio. My experience building enterprise web applications with Java, Spring Boot, TypeScript, and React aligns well with your focus on reliable B2B integration products.

I bring a quality-focused approach to feature ownership, including software design, unit testing, secure coding, and collaboration with product stakeholders from ideation through production support.

I would welcome the opportunity to contribute to ecosio’s remote-first team and help build efficient tools for the Onboarding & Operations organization.

Thank you for your consideration.

Copy   Sample interview questionsHow would you take ownership of a feature from ideation through deployment and maintenance?I would clarify the user outcome and acceptance criteria with the product owner, identify affected services and data flows, and split the work into deliverable slices. I would design the API and UI contracts early, implement the Java/Spring backend and React frontend with automated tests, then use code review and monitored deployment to validate the release.

Describe your approach to building a reliable Java and Spring Boot backend service.

I use Spring Boot to create clearly layered services, validate inputs at the boundary, centralize error handling, and keep business logic independently testable. I would use JUnit for unit tests, add integration tests for critical endpoints and persistence behavior, and ensure configuration and secrets are handled safely across environments.

How do you approach a complex TypeScript and React workflow, such as an onboarding form?

I build React interfaces from reusable, typed components and keep server state separate from local UI state. For a complex form, I would use an appropriate form library, provide validation and accessible feedback, use TanStack Query for API caching and mutations, and test key user flows with React Testing Library.

What secure coding practices would you apply to an enterprise web application?

I start by assessing access controls, input validation, authentication and authorization boundaries, dependency risks, logging practices, and exposure of sensitive data. I apply secure defaults, avoid placing secrets in code or client-side applications, use parameterized data access patterns, and make security checks part of code review and testing.

How would you decide whether to use MongoDB, Redis, Elasticsearch, or Cassandra for a new capability?

I would select storage based on access patterns, consistency requirements, query needs, and operational trade-offs rather than using a database by default. For example, MongoDB can fit document-oriented workflows, Redis is useful for low-latency caching, Elasticsearch supports search, and Cassandra can support high-scale distributed workloads when its data-model constraints fit the use case.

### 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/150845-full-stack-developer-java-react-f-m-d.md)

>  Annual salary information is not provided for this position. Explore salary ranges for similar roles in our [Salary Directory ›](https://jobicy.com/salaries.md)

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