Senior Full-Stack Engineer (Spanish-speaking)
Nix
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.
Required Skills
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