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Senior Full-Stack Engineer (Spanish-speaking)

Nix

Poland (Europe) Remote permanent

Posted: March 24, 2026

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Quick Summary

Join our team as a Senior Full-Stack Engineer in Poland, where you'll work closely with a global team to design and develop APIs, ensuring high availability and sustainability.

Job Description

N-iX is looking for Senior Full-Stack Engineer (Spanish-speaking) to join the team

One of the world's largest fashion retailers selling in 215 markets through its online platform or its 6,477 stores in 95 markets. By working closely together as a single company globally focused on the key elements of fashion production – design, manufacture, distribution, and retail.
All the production is founded on three pillars – flexibility, digital integration, and sustainability.

Responsibilities:

• Participate actively and constantly in the design and development of APIs

• Ensure the availability and resilience of its services that help the development of the company’s business

• Ensure the quality of development and code cleanliness (Clean Code)

• Continuously perfect our style guides, design, and code patterns as well as our React component library

• Implement the scripts for the automation of the test cases

• Automatic and manual exploratory execution during the development to verify that the acceptance criteria are covered

• Maintain and evolve automated test cases with QA

• Work in close contact with the Product Owner and support in the technical definition of product backlog items

• Guarantee continuous deployment, write qualitative, maintainable code with extensive test coverage in a fast-paced professional software engineering environment

• Suggest technical and functional improvements to add value to the product

Requirements:

• 5+ years of software development experience

• 4+ years of extensive Java development experience, Maven

• 2-3 years of Spring framework and building Spring web applications

• Understanding and experience developing and deploying microservices

• Experience developing REST interfaces, OpenApi

• Frontend testing and performance optimization

• CSS3/SCSS/HTML5, modern responsive design techniques

• Extensive experience with ES6, React, Redux, Redux-saga TypeScript, CSS, RESTful APIs

• Excellent design, coding, and debugging skills

• OOP, OOD, DDD. Design Patterns proficient

• Working knowledge of relational databases, NoSQL technologies – Mongo DB

• Working knowledge of Kafka, Kafka streaming (can be optional)

• Experience with different clouds – AWS, Azure

• Working knowledge of OpenShift, Kubernetes

• Familiar with GrayLog, Grafana

• Upper-Intermediate+ level of Spanish is required

• Experience actively using AI tools for development is required

• Working experience in an Agile environment, a clear understanding of Agile methodologies mindset, and development practices applicable to them

• Excellent communication, organizational, and facilitation skills, product-oriented mindset, focus on team results, willingness to continuous personal and team improvements, leadership qualities, and resilience

• Upper-Intermediate/Advanced English level (there will be a lot of communication with the client)

We offer*:

• Flexible working format - remote, office-based or flexible

• A competitive salary and good compensation package

• Personalized career growth

• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)

• Active tech communities with regular knowledge sharing

• Education reimbursement

• Memorable anniversary presents

• Corporate events and team buildings

• Other location-specific benefits

*not applicable for freelancers

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